JP2010052460A - Control device for vehicle - Google Patents

Abstract

Control is performed in accordance with an abnormality of a device that affects engine torque, and a control system other than the engine is shared.
An engine control system 700 aggregates information indicating abnormality of a plurality of devices that affect the realization or estimation of engine torque. Further, the engine control system 700 outputs information indicating that the realization accuracy or estimation accuracy of the engine torque is lowered when an abnormality of at least one of the plurality of devices is detected. The transmission control system 800 controls the automatic transmission according to information indicating that the realization accuracy or estimation accuracy of the engine torque is reduced. The cruise control system 900 executes cruise control in accordance with information indicating that the engine torque realization accuracy or estimation accuracy decreases.
[Selection] Figure 7

Description

  The present invention relates to a vehicle control device, and more particularly to a technique for unifying information indicating abnormality of a power source into information indicating that accuracy of output torque of the power source is reduced.

  Conventionally, a vehicle equipped with an engine as a driving source and an automatic transmission connected to the engine is known. The engine is controlled to output torque according to the accelerator opening. Further, the automatic transmission is controlled so as to form a gear according to the accelerator opening and the vehicle speed. Further, the automatic transmission is controlled to adjust the hydraulic pressure such as the line pressure based on the estimated value of the output torque of the engine. Further, in cruise control or the like for maintaining the vehicle speed constant, it is required to control the engine output torque to a desired value in order to maintain the vehicle speed.

  However, if the actuator (such as an electronic throttle valve) that controls the output torque of the engine and the sensor (such as an air flow meter) that detects the operating state of the engine are abnormal, an estimated value of the output torque is actually output from the engine. Torque may vary. In addition, the actual output torque may be larger than the required output torque value. In such a case, it is necessary to execute some kind of fail safe.

  Japanese Patent Laid-Open No. 11-48831 (Patent Document 1) discloses an engine output torque signal generation unit that generates an engine output torque signal to an engine control device, and an engine that transmits an engine output torque signal to the transmission control device. An output torque signal transmission unit, and a diagnostic signal transmission unit for transmitting a signal indicating that the engine output torque signal is indefinite to the transmission control device when there is an abnormality in the engine control device. An output control device for a vehicle is disclosed. When the deviation between the target throttle opening and the actual throttle opening in the electric throttle valve is greater than or equal to a predetermined level, it is diagnosed that there is an abnormality. Further, when the engine speed fluctuates greatly even though the target torque has not changed, it is diagnosed that there is an abnormality.

According to the vehicle output control device described in this publication, when the engine output torque signal is transmitted from the engine control device to the transmission control device, the engine output torque signal is indefinite when there is an abnormality. A signal indicating this is transmitted. Therefore, an abnormality handling process can be performed on the transmission control device side.
JP 11-48831 A

  In addition to electronic throttle valves, engine output torque includes various devices such as spark plugs, injectors, swirl control valves, VVT (Variable Valve Timing) mechanisms, and ACIS (Acoustic Control Induction System) that changes the length of the intake pipe. Fluctuates under the influence of

  However, Japanese Patent Application Laid-Open No. 11-48831 describes performing fail-safe in the same manner as when the electronic throttle valve is abnormal when the output shaft speed fluctuates. There is no description on how to perform fail-safe when the device is abnormal.

  Further, if information (signal) specific to each device in which an abnormality is detected in the engine control system is output from the engine control system to a control system other than the engine (for example, an automatic transmission control system), the information other than the engine It is necessary to determine for each device what kind of fail safe is to be performed in the control system (for example, the control system of an automatic transmission). Therefore, it becomes necessary to individually develop a control system other than the engine for each type of engine mounted on the vehicle. For example, even in the same vehicle type, a control system other than the engine needs to be developed separately for a vehicle equipped with a gasoline engine and a vehicle equipped with a diesel engine. Further, even in the same vehicle type, a control system other than the engine needs to be developed separately for a vehicle equipped with an engine provided with a VVT mechanism and a vehicle equipped with an engine not provided with a VVT mechanism.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to perform control according to an abnormality of a device that affects the output torque of a drive source and to drive different types of drives. To provide a control device for a vehicle that can share a control system other than a drive source with respect to a power source.

  A vehicle control device according to a first aspect of the present invention is a vehicle control device equipped with a drive source. The control device aggregates information indicating abnormality of a plurality of devices that detects an abnormality of the plurality of devices that affects the output torque of the drive source, and at least one of the plurality of devices. When an abnormality of one device is detected, output means for outputting information indicating that the accuracy of the output torque of the drive source is reduced, and information indicating that the accuracy of the output torque of the drive source is reduced And a control means for controlling the vehicle.

  According to this configuration, anomalies of a plurality of devices that affect the output torque of the drive source are detected. Information indicating abnormality of a plurality of devices is collected. Further, when an abnormality of at least one of the plurality of devices is detected, information indicating that the accuracy of the output torque of the drive source is reduced is output. The vehicle is controlled according to information indicating that the accuracy of the output torque of the drive source is reduced. As a result, information indicating that the accuracy of the output torque of the drive source is reduced is output without outputting information specific to the device in which the abnormality is detected from the control system of the drive source to a control system other than the drive source. Thus, it is possible to execute processing such as fail-safe in a control system other than the drive source. Therefore, control systems other than the same drive source can be used for control systems of different drive sources. As a result, the vehicle can be controlled in accordance with the abnormality of the device that affects the output torque of the drive source, and the control system other than the drive source can be shared for different types of drive sources. A control device can be provided.

  The vehicle control apparatus according to the second aspect of the invention further includes means for controlling the drive source so as to realize the required value of the output torque, in addition to the configuration of the first aspect of the invention. The detection means includes means for detecting an abnormality in a plurality of devices that affects the realization of the output torque of the drive source. The output means indicates the amount of decrease in the realization accuracy of the output torque of the drive source when an abnormality is detected in at least any one of a plurality of devices that affect the realization of the output torque of the drive source. Means for outputting information. The control means includes means for controlling the vehicle in a different manner depending on the amount of reduction in the realization accuracy of the output torque of the drive source.

  According to this configuration, it is possible to execute processing such as fail-safe in a stepwise manner in accordance with the amount of decrease in the output torque realization accuracy.

  In the vehicle control apparatus according to the third aspect of the invention, in addition to the configuration of the second aspect of the invention, a reduction amount of the realization accuracy of the output torque of the drive source is determined for each of a plurality of devices. The control device further includes calculation means for calculating a reduction amount of the realization accuracy of the output torque of the drive source according to the device in which the abnormality is detected.

  According to this configuration, even if information unique to the device in which the abnormality is detected is not output from the control system of the drive source to the control system other than the drive source, the control system other than the drive source can detect the abnormality in the device. Accordingly, it is possible to execute a process such as fail-safe step by step.

  In the vehicle control apparatus according to the fourth aspect of the invention, in addition to the configuration of the third aspect of the invention, the calculating means is the device having the largest reduction in the output torque realization accuracy among the plurality of devices in which the abnormality is detected. Means are included for calculating the amount of reduction as the amount of reduction in the realization accuracy of the output torque of the drive source.

  According to this configuration, the amount of reduction in the realization accuracy of the output torque of the drive source is calculated as the amount of reduction in the realization accuracy of the output torque of the drive source. As a result, it is possible to more accurately calculate the amount of decrease in the output torque realization accuracy.

  In addition to the configuration of the second invention, the vehicle control apparatus according to the fifth invention is an estimation means for estimating the output torque of the drive source, and the difference between the requested value and the estimated value of the output torque is a threshold value. If it is above, it further has means for calculating the difference between the required value of the output torque and the estimated value as the amount of reduction in the realization accuracy of the output torque of the drive source. The detecting means detects an abnormality of any one of a plurality of devices affecting the realization of the output torque of the drive source when the difference between the output torque request value and the estimated value is equal to or greater than a threshold value. Have means for.

  According to this configuration, the difference between the required value of the output torque and the estimated value is greater than or equal to the threshold value as an abnormality of any of the multiple devices that affect the realization of the output torque of the drive source. Can be detected. Furthermore, the reduction amount of the output torque realization accuracy of the drive source can be calculated from the difference between the output torque request value and the estimated value.

  The vehicle control apparatus according to a sixth aspect of the invention further includes means for controlling the drive source so as to realize the required value of the output torque in addition to the configuration of the first aspect of the invention. The detection means includes means for detecting an abnormality in a plurality of devices that affects the realization of the output torque of the drive source. The output means is information indicating that the realization accuracy of the output torque of the drive source decreases when an abnormality is detected in any of a plurality of devices that affect the realization of the output torque of the drive source. Means for outputting. The control means includes means for controlling the vehicle according to information indicating that the realization accuracy of the output torque of the drive source is reduced.

  According to this configuration, it is possible to execute processing such as fail-safe when the output torque realization accuracy is reduced due to an abnormality in the device.

  In the vehicle control apparatus according to the seventh aspect of the invention, in addition to the configuration of the sixth aspect of the invention, the detecting means affects the realization of the output torque of the drive source, depending on the state in which the drive source is operated under a predetermined condition. Means for detecting an abnormality of at least one of the plurality of devices.

  According to this configuration, operating the drive source under a predetermined condition can be detected as an abnormality of at least one of the plurality of devices that affects the realization of the output torque of the drive source. it can. Therefore, if it is known in advance that the accuracy of the output torque of the drive source will be reduced even if the multiple devices that affect the output torque of the drive source are not abnormal, the output torque of the drive source It is possible to output information indicating that the realization accuracy of is reduced.

  In the vehicle control apparatus according to the eighth aspect of the invention, in addition to the configuration of the seventh aspect of the invention, the condition is that the temperature of the cooling water of the drive source is not more than a threshold value.

  According to this configuration, it has been found in advance that the accuracy of the output torque is reduced because the temperature of the cooling water of the drive source is low even if the multiple devices that affect the output torque of the drive source are not abnormal. If it is, information indicating that the realization accuracy of the output torque of the drive source is reduced can be output.

  In the vehicle control device according to the ninth aspect of the invention, in addition to the configuration of the seventh aspect of the invention, the condition is a condition that the altitude of the vehicle is equal to or greater than a threshold value.

  According to this configuration, even if a plurality of devices that affect the realization of the output torque of the drive source are not abnormal, the realization accuracy of the output torque of the drive source is reduced because the density of the air sucked into the drive source is low. Is known in advance, it is possible to output information indicating that the realization accuracy of the output torque of the drive source is reduced.

  A vehicle control apparatus according to a tenth aspect of the invention includes, in addition to the configuration of the seventh aspect of the invention, means for correcting the control mode of the drive source according to the driving conditions of the drive source, and correction of the control mode of the drive source. When the execution state is the first state, at least any one of a plurality of devices that affect the realization of the output torque of the drive source when the drive source is operated under a predetermined condition In the second state where the correction amount of the control mode of the drive source is larger than that in the first state, the state where the drive source is operated under a predetermined condition is determined. And a means for prohibiting detection of an abnormality of at least one of a plurality of devices affecting the realization of the output torque of the drive source.

  According to this configuration, when the output torque implementation accuracy temporarily decreases until the correction of the control mode of the drive source is completed, the state in which the drive source is operated under a predetermined condition is set as the output torque of the drive source. It can be prohibited to detect an abnormality of at least one of a plurality of devices that affect the realization of. Therefore, it is possible to prevent erroneous detection of a device abnormality that affects the realization of the output torque of the drive source.

  The vehicle control apparatus according to the eleventh aspect of the invention further includes estimation means for estimating the output torque of the drive source in addition to the configuration of the sixth aspect of the invention. The detecting means detects an abnormality of any one of a plurality of devices affecting the realization of the output torque of the drive source when the difference between the output torque request value and the estimated value is equal to or greater than a threshold value. Have means for.

  According to this configuration, the difference between the required value of the output torque and the estimated value is greater than or equal to the threshold value as an abnormality of any of the multiple devices that affect the realization of the output torque of the drive source. Can be detected.

  In the vehicle control apparatus according to the twelfth aspect of the invention, in addition to the configuration of the sixth aspect of the invention, the output means may detect that an abnormality of any one of the plurality of equipments affecting the realization of the output torque of the drive source. In addition to outputting information indicating that the realization accuracy of the output torque of the drive source is reduced when detected, the condition that the realization accuracy of the output torque of the drive source is predicted to be reduced is satisfied In addition, there is a notifying means for outputting information for notifying that the realization accuracy of the output torque of the drive source is lowered.

  According to this configuration, when it is predicted that the realization accuracy of the output torque of the drive source will be reduced, it is possible to output in advance information for notifying that the realization accuracy of the output torque of the drive source will be reduced. For example, when it is predicted that the retardation of the ignition timing is limited in order to prevent overheating of the catalyst, information for notifying that the realization accuracy of the output torque of the drive source is reduced may be output in advance. it can.

  In the vehicle control apparatus according to the thirteenth aspect of the invention, in addition to the configuration of the twelfth aspect of the invention, the notice means informs that the realization accuracy of the output torque of the drive source is reduced by turning on the flag. Means for outputting.

  According to this configuration, it is possible to output information for notifying that the realization accuracy of the output torque of the drive source is reduced by turning on the flag.

  In the vehicle control apparatus according to the fourteenth aspect of the invention, in addition to the configuration of the twelfth aspect of the invention, the notifying means has means for outputting a time when the realization accuracy of the output torque of the drive source decreases.

  According to this configuration, by outputting the time when the realization accuracy of the output torque of the drive source is reduced, it is possible to output information for notifying that the realization accuracy of the output torque of the drive source is reduced.

  The vehicle control apparatus according to the fifteenth aspect of the invention further includes estimation means for estimating the output torque of the drive source in addition to the configuration of the first aspect of the invention. The detection means includes means for detecting an abnormality of a plurality of devices that affects the estimation of the output torque of the drive source. The output means indicates the amount of decrease in the estimation accuracy of the output torque of the drive source when an abnormality of at least one of the plurality of devices that affects the estimation of the output torque of the drive source is detected. Means for outputting information. The control means includes means for controlling the vehicle in a different manner depending on the amount of decrease in the estimation accuracy of the output torque of the drive source.

  According to this configuration, it is possible to execute processing such as fail-safe in a stepwise manner in accordance with the amount of decrease in output torque estimation accuracy.

  In the vehicle control device according to the sixteenth aspect of the invention, in addition to the configuration of the fifteenth aspect, a reduction amount of the estimation accuracy of the output torque of the drive source is determined for each of a plurality of devices. The control device further includes calculation means for calculating a reduction amount of the estimation accuracy of the output torque of the drive source in accordance with the device in which the abnormality is detected.

  According to this configuration, even if information unique to the device in which the abnormality is detected is not output from the control system of the drive source to the control system other than the drive source, the control system other than the drive source can detect the abnormality in the device. Accordingly, it is possible to execute a process such as fail-safe step by step.

  In the vehicle control device according to the seventeenth aspect of the invention, in addition to the configuration of the sixteenth aspect of the invention, the calculation means Means are included for calculating the amount of decrease as the amount of decrease in the estimation accuracy of the output torque of the drive source.

  According to this configuration, the amount of reduction in the estimation accuracy of the output torque of the drive source is calculated as the amount of reduction in the estimation accuracy of the output torque of the drive source, among the plurality of devices in which abnormality is detected. Thereby, the amount of decrease in the estimation accuracy of the output torque can be calculated more accurately.

  The vehicle control apparatus according to an eighteenth aspect of the invention further includes estimation means for estimating the output torque of the drive source in addition to the configuration of the first aspect of the invention. The detection means includes means for detecting an abnormality of a plurality of devices that affects the estimation of the output torque of the drive source. The output means may reduce the estimation accuracy of the output torque of the drive source when an abnormality is detected in at least one of the plurality of devices that affects the estimation of the output torque of the drive source. Means for outputting the indicated information. The control means includes means for controlling the vehicle according to information indicating that the estimation accuracy of the output torque of the drive source is reduced.

  According to this configuration, when the estimation accuracy of the output torque is lowered due to the abnormality of the device, it is possible to execute processing such as fail safe.

  In the vehicle control apparatus according to the nineteenth aspect of the invention, in addition to the configuration of the eighteenth aspect of the invention, the detection means influences the estimation of the output torque of the drive source according to the state in which the drive source is operated under a predetermined condition. Means for detecting an abnormality of at least one of the plurality of devices.

  According to this configuration, operating the drive source under a predetermined condition can be detected as an abnormality of at least one of the plurality of devices that affects the estimation of the output torque of the drive source. it can. Therefore, if it is known in advance that the accuracy of estimation of the output torque of the drive source will be reduced even if a plurality of devices that affect the estimation of the output torque of the drive source are not abnormal, the output torque of the drive source It is possible to output information indicating that the estimation accuracy of is reduced.

  In the vehicle control apparatus according to the twentieth aspect of the invention, in addition to the configuration of the nineteenth aspect of the invention, the condition is that the temperature of the cooling water of the drive source is not more than a threshold value.

  According to this configuration, it has been found in advance that the accuracy of the output torque is reduced because the temperature of the cooling water in the drive source is low even if multiple devices that affect the estimation of the output torque of the drive source are not abnormal. If it is, information indicating that the estimation accuracy of the output torque of the drive source is reduced can be output.

  In the vehicle control apparatus according to the twenty-first aspect, in addition to the configuration of the nineteenth aspect, the condition is a condition that the altitude of the vehicle is equal to or greater than a threshold value.

  According to this configuration, the estimation accuracy of the output torque of the drive source is reduced because the density of the air sucked into the drive source is low even if a plurality of devices that affect the estimation of the output torque of the drive source are not abnormal. Can be output in advance, information indicating that the estimation accuracy of the output torque of the drive source is reduced.

  In addition to the configuration of the fifteenth invention, the vehicle control device according to the twenty-second invention further comprises a first calculation means for calculating a first estimated value of the output torque of the drive source from the driving state of the vehicle. . The estimating means includes second calculating means for calculating a second estimated value of the output torque of the driving source from the operating state of the driving source. If the difference between the first estimated value and the second estimated value is greater than or equal to the threshold value, the detecting means detects an abnormality of any of the plurality of devices that affects the estimation of the output torque of the drive source. Means for detecting.

  According to this configuration, the drive source calculated from the first estimated value of the output torque of the drive source, which is calculated backward from the operation state of the vehicle traveling using the torque output from the drive source, and the drive state of the drive source That the difference between the output torque and the second estimated value is greater than or equal to the threshold value may be detected as an abnormality of any one of the plurality of devices affecting the estimation of the output torque of the drive source. it can.

  In the vehicle control apparatus according to the twenty-third aspect of the invention, in addition to the structure of the twenty-second aspect, the first calculating means is at least one of a speed ratio of a fluid coupling connected to a drive source and an acceleration of the vehicle. Means for calculating a first estimate from one side; The second calculation means has means for calculating a second estimated value from the amount of air taken into the drive source.

  According to this configuration, the output torque of the drive source is accurately estimated from the speed ratio of the fluid coupling or the acceleration of the vehicle by using the fact that the speed ratio of the fluid coupling or the acceleration of the vehicle is determined according to the output torque of the drive source. can do. Further, the output torque of the drive source can be accurately calculated from the amount of air sucked into the drive source by using the fact that the output torque of the drive source is determined according to the amount of air sucked into the drive source. it can.

  In addition to the configuration of any one of the first to twenty-third inventions, the vehicle control device according to the twenty-fourth invention provides information indicating whether or not to notify the driver of an abnormality in the drive source to the equipment in which the abnormality has been detected. A means for outputting in response is further provided.

  According to this configuration, it is possible to output information indicating that the accuracy of the output torque of the drive source has decreased, as well as information for distinguishing between an abnormality to be notified to the driver and an abnormality that does not need to be notified to the driver.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  A vehicle equipped with a control device according to an embodiment of the present invention will be described with reference to FIG. This vehicle is an FR (Front engine Rear drive) vehicle. A vehicle other than FR may be used.

  The vehicle includes an engine 100, an automatic transmission 200, a torque converter 300, a propeller shaft 400, a differential gear 500, and a rear wheel 600.

  The engine 100 is an internal combustion engine that burns a mixture of fuel and air in a combustion chamber of a cylinder. The piston in the cylinder is pushed down by the combustion, and the crankshaft is rotated. Auxiliary machines such as an alternator and an air conditioner are driven by the driving force of the engine 100. A motor may be used as a power source instead of or in addition to engine 100.

  Automatic transmission 200 is connected to engine 100 via torque converter 300. Automatic transmission 200 changes the rotational speed of the crankshaft to a desired rotational speed by forming a desired gear stage.

  The driving force output from the automatic transmission 200 is transmitted to the left and right rear wheels 600 via the propeller shaft 400 and the differential gear 500.

  The engine 100 will be further described with reference to FIG. Engine 100 is mounted on a vehicle as a drive source. The engine 100 is a V-type 8-cylinder engine in which “A” bank 1010 and “B” bank 1012 are each provided with a group of four cylinders. The vehicle is not limited to the V-type 8-cylinder engine described below, and can be equipped with engines of various specifications.

  Air is drawn into engine 100 from air cleaner 1020. The intake air amount is adjusted by a throttle valve 1030. The throttle valve 1030 is an electronic throttle valve that is driven by a motor.

  Instead of or in addition to the throttle valve 1030, the amount of air taken into the engine 100 may be adjusted by changing the lift amount of the intake valve 1100 or the exhaust valve 1110 and the opening / closing phase.

  Air is introduced into the cylinder 1040 through the intake pipe 1032. Air is mixed with fuel in a cylinder 1040 (combustion chamber). Fuel is directly injected from the injector 1050 into the cylinder 1040. That is, the injection hole of the injector 1050 is provided in the cylinder 1040.

  Fuel is injected during the intake stroke. Note that the timing of fuel injection is not limited to the intake stroke. In the present embodiment, engine 100 is described as a direct injection engine in which an injection hole of injector 1050 is provided in cylinder 1040. However, in addition to direct injection injector 1050, a port injection injector is provided. May be. Further, only a port injection injector may be provided.

  The air-fuel mixture in the cylinder 1040 is ignited by the spark plug 1060 and burned. The air-fuel mixture after combustion, that is, the exhaust gas is purified by the three-way catalyst 1070 and then discharged outside the vehicle. The piston 1080 is pushed down by the combustion of the air-fuel mixture, and the crankshaft 1090 rotates.

  An intake valve 1100 and an exhaust valve 1110 are provided at the top of the cylinder 1040. Intake valve 1100 is driven by intake camshaft 1120. The exhaust valve 1110 is driven by an exhaust camshaft 1130. Intake camshaft 1120 and exhaust camshaft 1130 are connected by a chain, gear, or the like, and rotate at the same rotational speed.

  Furthermore, at least one of intake camshaft 1120 and exhaust camshaft 1130 is connected to crankshaft 1090 by a chain, a belt, or the like. Intake camshaft 1120 and exhaust camshaft 1130 rotate at half the rotational speed of crankshaft 1090.

  The phase (opening / closing timing) of intake valve 1100 is controlled by intake VVT mechanism 2000 provided on intake camshaft 1120. The phase of the exhaust valve 1110 is controlled by an exhaust VVT mechanism 3000 provided on the exhaust camshaft 1130.

  In the present embodiment, intake camshaft 1120 and exhaust camshaft 1130 are rotated by the VVT mechanism, whereby the phases of intake valve 1100 and exhaust valve 1110 are controlled. The method for controlling the phase is not limited to this.

  Intake VVT mechanism 2000 and exhaust VVT mechanism 3000 are operated by an electric motor. Intake VVT mechanism 2000 or exhaust VVT mechanism 3000 may be hydraulically operated. Further, since a known technique may be used for the VVT mechanism, detailed description thereof will not be repeated here. Further, the phase of only one of intake valve 1100 and exhaust valve 1110 may be changed.

  Referring to FIG. 3, engine 100 is provided with a swirl control valve 1200 and ACIS 1300.

  The swirl control valve 1200 is provided at one of the two intake ports connected to the cylinder 1040. When the swirl control valve 1200 is closed, the flow velocity of the air passing through the other port is increased. Therefore, the lateral turbulence in the cylinder 1040 is strengthened. Thereby, the atomization of fuel is promoted. The swirl control valve 1200 is opened and closed by the driving force of the motor 1202.

  The ACIS 1300 switches the length of the intake pipe 1032 in two stages by opening and closing the ACIS valve 1302. More specifically, the effective length of the intake pipe 1032 is switched between two stages. When the ACIS valve 1302 is closed, the effective length of the intake pipe 1032 becomes longer, as indicated by the oblique lines in FIG. When the ACIS valve 1302 is opened, the effective length of the intake pipe 1032 is shortened, as indicated by the oblique lines in FIG.

  Referring to FIG. 6, engine control system 700, transmission control system 800, and cruise control system 900 are mounted on the vehicle in the present embodiment.

  These control systems are connected via an in-vehicle communication network. Therefore, the engine control system 700, the transmission control system 800, and the cruise control system 900 can perform two-way communication between the systems. Note that a control system other than these may be mounted.

  The engine control system 700, the transmission control system 800, and the cruise control system 900 may be mounted on each using a dedicated computer or ECU (Electronic Control Unit), and at least a part of the system configuration is a computer. Alternatively, the ECU may be shared and mounted.

  The engine control system 700 receives signals representing the rotation speed of the crankshaft 1090 (engine rotation speed NE) and the crank angle from the crank position sensor 702. Further, the engine control system 700 receives a signal representing the phase of the intake camshaft 1120 and the exhaust camshaft 1130 (the position of the camshaft in the rotational direction) from the cam position sensor 704.

  Further, in the engine control system 700, a signal representing the water temperature (cooling water temperature) of the engine 100 from the water temperature sensor 706 represents the intake air amount of the engine 100 (the amount of air taken into the engine 100) from the air flow meter 708. The signal is input from the throttle opening sensor 710 as a signal representing the throttle opening (the opening of the throttle valve 1030).

  Based on signals input from these sensors, a map stored in a memory (not shown), and a program, the engine control system 700 controls the throttle opening and ignition timing so that the engine 100 enters a desired operating state. The fuel injection timing, the fuel injection amount, the phase of the intake valve 1100, the phase of the exhaust valve 1110, the swirl control valve 1200, the ACIS 1300, and the like are controlled.

  The engine control system 700 detects abnormalities in devices that affect the realization or estimation of the output torque of the engine 100 (hereinafter also referred to as engine torque), that is, the actuators and sensors described above.

  Transmission control system 800 receives signals from position switch 802, accelerator opening sensor 804, input shaft rotational speed sensor 806, output shaft rotational speed sensor 808, oil temperature sensor 810, and the like.

  Position switch 802 detects the position (position) of shift lever 812 and transmits a signal representing the detection result to transmission control system 800. Corresponding to the position of the shift lever 812, the gear stage of the automatic transmission 200 is automatically formed. Further, a manual shift mode in which the driver can select an arbitrary gear stage may be selected according to the driver's operation.

  The accelerator opening sensor 804 detects the opening of the accelerator pedal 814 and transmits a signal representing the detection result to the transmission control system 800.

  Input shaft rotational speed sensor 806 detects input shaft rotational speed NI of automatic transmission 200 (turbine rotational speed NT of torque converter 300), and transmits a signal representing the detection result to transmission control system 800.

  Output shaft rotation speed sensor 808 detects output shaft rotation speed NO of automatic transmission 200 and transmits a signal representing the detection result to transmission control system 800. In the present embodiment, the vehicle speed is calculated from the output shaft rotational speed NO of automatic transmission 200. As a method for calculating the vehicle speed from the output shaft rotational speed NO of automatic transmission 200, a well-known general technique may be used. Therefore, detailed description thereof will not be repeated here.

  Oil temperature sensor 810 detects the temperature (oil temperature) of oil (ATF: Automatic Transmission Fluid) used for the operation and lubrication of automatic transmission 200, and transmits a signal representing the detection result to transmission control system 800.

  Further, information (signals) indicating the vehicle altitude, the road surface gradient, the curvature of the curve, and the like are input to the transmission control system 800 from the navigation system 816. The navigation system 816 calculates the altitude of the vehicle, the gradient of the road surface, the curvature of the curve, etc. based on the map data that is created in advance and stored in the memory and the current location of the vehicle detected using the GPS (Global Positioning System). The indicated information is output to the transmission control system 800.

  The transmission control system 800 stores signals sent from a position switch 802, an accelerator opening sensor 804, an input shaft rotational speed sensor 806, an output shaft rotational speed sensor 808, an oil temperature sensor 810, a navigation system 816, and the like in a memory. The automatic transmission 200 is controlled based on the map and the program.

  In the present embodiment, transmission control system 800 has a plurality of forward gear stages when the shift lever 812 is in the D (drive) position and the D (drive) range is selected as the shift range of automatic transmission 200. The automatic transmission 200 is controlled so that one of the gear stages is formed.

  The gear stage to be formed is determined based on a shift diagram created in advance by experiments or the like using the vehicle speed and the accelerator opening as parameters. Further, the gear stage to be formed is determined in consideration of information such as the road surface gradient and the curvature of the curve input from the navigation system.

  The cruise control system 900 controls the engine 100 and the braking force of the vehicle so as to maintain the vehicle speed set by the driver.

  With reference to FIG. 7, the functions of engine control system 700, transmission control system 800, and cruise control system 900 will be described. Note that the functions described below may be realized by hardware or may be realized by software.

  Engine control system 700 includes an implementation unit 720, an estimation unit 722, an abnormality detection unit 724, a correction unit 726, a prohibition unit 728, and an aggregation unit 730.

  The realization unit 720 receives the engine torque request value output from the transmission control system 800 or the cruise control system 900, and implements the throttle opening, ignition timing, fuel injection timing, fuel, so as to realize this engine torque request value. The injection amount, the phase of the intake valve 1100, the phase of the exhaust valve 1110, the swirl control valve 1200, the ACIS 1300, and the like are controlled.

  Estimating unit 722 estimates engine torque based on the operating state of engine 100. For example, the estimated value of the engine torque is calculated based on a map having parameters such as the intake air amount detected by the air flow meter 708 and the engine speed NE detected by the crank position sensor 702.

  Note that a known general technique may be used as a method for calculating the estimated value of the engine torque based on the operating state of the engine 100, and therefore, detailed description thereof will not be repeated here.

  The abnormality detection unit 724 detects an abnormality of the device that affects the realization or estimation of the engine torque. For example, an abnormality of an actuator such as throttle valve 1030, injector 1050, spark plug 1060, intake VVT mechanism 2000, exhaust VVT mechanism 3000, swirl control valve 1200, and ACIS 1300 is detected. In addition, abnormality of sensors such as a crank position sensor 702, a cam position sensor 704, a water temperature sensor 706, an air flow meter 708, and a throttle opening sensor 710 is detected.

  More specifically, a plurality of devices (actuators and / or sensors) that affect the realization of the output torque of engine 100 are determined in advance based on results of experiments and the like, and abnormalities in the predetermined devices are detected. .

  Further, if the difference between the requested value of engine torque requested from transmission control system 800 or cruise control system 900 and the estimated value of engine torque calculated by engine control system 700 is equal to or greater than a threshold value, engine torque An abnormality of any one of a plurality of devices that affect the realization of is detected. That is, if the difference between the required value of the engine torque and the estimated value is greater than or equal to the threshold value, it is determined that one of a plurality of devices that affect the realization of the engine torque is abnormal.

  Furthermore, based on the results of experiments and the like, a plurality of devices (actuators and / or sensors) that affect the estimation of the output torque of engine 100 are determined in advance, and a predetermined device abnormality is detected.

  Further, if the difference between the estimated value of the engine torque calculated by the transmission control system 800 and the estimated value of the engine torque calculated by the engine control system 700 is equal to or greater than a threshold value, the estimation of the engine torque is affected. An abnormality of any one of a plurality of devices that provide That is, if the difference between the estimated value of the engine torque calculated by the transmission control system 800 and the estimated value of the engine torque calculated by the engine control system 700 is equal to or greater than a threshold value, the estimation of the engine torque is affected. It is determined that any one of the plurality of devices that gives the error is abnormal. A method for calculating the estimated value of the engine torque in the transmission control system 800 will be described later.

  Further, the abnormality detection unit 724 detects a state in which the engine 100 is operated under a predetermined condition as an abnormality of at least one of a plurality of devices that affect the realization or estimation of the engine torque. . That is, when engine 100 is operated under a predetermined condition, it is determined that at least one of the plurality of devices is abnormal even if the device is not abnormal.

  For example, a state where the engine 100 is operated under the condition that the water temperature of the engine 100 is lower than the threshold value or the vehicle altitude is higher than the threshold value affects the realization or estimation of the engine torque. Is detected as an abnormality of at least one of the devices.

  Note that the method of detecting an abnormality of a device that affects the realization or estimation of the engine torque is not limited to these, and other methods may be used to detect an abnormality of each device.

  Correction unit 726 corrects the control mode of engine 100 according to the operating conditions of engine 100. For example, by ISC (Idle Speed Control), the throttle opening during idling is corrected (learned) by feedback control so that the engine speed NE becomes the target idle speed according to the engine speed NE. The method for correcting the control mode of engine 100 is not limited to this.

  The prohibition unit 728 determines a state in which the engine 100 is operated under a predetermined condition until the execution state of the correction of the control mode of the engine 100 is stabilized. It is prohibited to detect an abnormality of at least one of the devices.

  For example, if the correction amount of the throttle opening by ISC is smaller than a threshold value, at least one of a plurality of devices that affect the realization or estimation of engine torque when the engine 100 is operated under predetermined conditions. It is permitted to detect an abnormality of one device. On the other hand, if the throttle opening correction amount by ISC is larger than the threshold value, at least one of a plurality of devices that affect the realization or estimation of the engine torque when the engine 100 is operated under a predetermined condition. It is prohibited to detect an abnormality of one device.

  The aggregation unit 730 includes an output unit 732 and a calculation unit 734. The aggregating unit 730 aggregates information (signals) indicating abnormality of a plurality of devices that affect the realization or estimation of the engine torque.

  The output unit 732 of the aggregating unit 730 indicates that the engine torque realization accuracy or estimation accuracy is detected when an abnormality of at least one of a plurality of devices affecting engine torque realization or estimation is detected. Outputs information (signal) indicating a decrease.

  In the present embodiment, when an abnormality is detected in at least any one of a plurality of devices that affect the realization of the engine torque, information indicating that the accuracy of realizing the engine torque is reduced. Information indicating the amount of decrease in the accuracy of realizing the engine torque is output.

  Further, when an abnormality is detected in at least one of a plurality of devices that affect the estimation of the engine torque, the estimation of the engine torque is performed as information indicating that the estimation accuracy of the engine torque is reduced. Information indicating the amount of decrease in accuracy is output.

  Instead of outputting the information indicating the amount of decrease in the engine torque realization accuracy and the amount of decrease in the estimation accuracy, information indicating that the realization accuracy or estimation accuracy of the engine torque is decreased may be output. .

  The calculation unit 734 of the aggregating unit 730 calculates the amount of decrease in the engine torque realization accuracy and the amount of decrease in the estimation accuracy.

  For example, based on the results of experiments and simulations, for each of a plurality of devices that affect the realization of the engine torque, a reduction amount of the realization accuracy of the engine torque is determined in advance and stored as a map. The calculation unit 730 calculates a reduction amount of the realization accuracy of the engine torque according to the device in which the abnormality is detected.

  If an abnormality of multiple devices is detected at the same time, the amount of decrease in the realization accuracy of the output torque among the multiple devices where the abnormality is detected is the amount of decrease in the realization accuracy of the engine torque. Is calculated as

  Similarly, a reduction amount of the estimation accuracy of the engine torque is determined in advance and stored as a map for each of a plurality of devices that affect the estimation of the engine torque. The calculation unit 730 calculates a reduction amount of the estimation accuracy of the engine torque according to the device in which the abnormality is detected.

  When abnormality of multiple devices is detected at the same time, the amount of decrease in the estimated accuracy of the output torque of the plurality of devices in which abnormality is detected is the amount of decrease in the estimated accuracy of engine torque. Is calculated as

  The method for calculating the reduction amount of the engine torque realization accuracy and the estimation accuracy is not limited to these.

  Transmission control system 800 includes a calculation unit 820, a first control unit 821, a second control unit 822, and an estimation unit 824.

  Calculation unit 820 calculates a required value of engine torque. For example, the required value of the engine torque is calculated according to a map having the accelerator opening and the vehicle speed as parameters. It should be noted that the required value of the driving force of the vehicle set according to the accelerator opening and the vehicle speed may be converted into the required value of engine torque.

  When the cruise control is being executed, the engine torque request value from the cruise control system 900 is output to the engine control system 700 instead of the engine torque request value determined from the accelerator opening.

  The first control unit 821 controls the automatic transmission 200 according to the estimated value of the engine torque calculated by the engine control system 700. For example, the line pressure of automatic transmission 200 is controlled according to the estimated value of engine torque calculated by engine control system 700.

  The second control unit 822 controls the automatic transmission 200 according to information indicating that the realization accuracy of the engine torque is reduced and information indicating that the estimation accuracy is reduced.

  For example, when information indicating that the realization accuracy of the engine torque is reduced or information indicating that the estimation accuracy is reduced is output from the engine control system 700 to the transmission control system 800, control for compensating oil pressure such as line pressure and the like Fail-safe such as prohibition of shift control based on the road surface gradient is executed. In addition, the control performed according to the information which shows that the implementation | achievement precision of engine torque falls and the information which shows that estimation precision falls is not restricted to these.

  It should be noted that automatic transmission 200 may be controlled in a different manner depending on the amount of decrease in the accuracy of realizing engine torque and the amount of decrease in estimation accuracy. For example, the greater the amount of decrease in engine torque realization accuracy or the larger the amount of decrease in estimation accuracy, the larger the region (vehicle speed, load on engine 100, etc.) that prohibits shift control based on road gradient. Also good.

  The estimation unit 824 calculates an estimated value of engine torque from the driving state of the vehicle. For example, an estimated value of the engine torque is calculated from at least one of the speed ratio of the torque converter 300 (turbine rotational speed NT / engine rotational speed NE) and vehicle acceleration (differential value of vehicle speed).

When the estimated value of the engine torque is calculated from the speed ratio of the torque converter 300, for example, according to a map having the speed ratio as a parameter, a capacity coefficient (torque required for rotating the input shaft of the torque converter / engine speed NE ² ) C Is calculated. Further, the estimated value of the engine torque is calculated by multiplying the capacity coefficient C by the square of the engine speed NE (engine speed NE ² ).

  When the estimated value of the engine torque is calculated from the acceleration of the vehicle, the driving force of the vehicle is calculated from the product of the acceleration of the vehicle and the vehicle weight. By multiplying the driving force of the vehicle by the radius of the rear wheel 600 and further dividing by the current gear ratio of the automatic transmission 200 and the gear ratio of the differential gear 500, an estimated value of the engine torque is calculated from the driving force of the vehicle. Is calculated. The calculation method of the estimated value of the engine torque is not limited to these.

Cruise control system 900 includes a calculation unit 920 and a control unit 922.
Calculation unit 920 calculates a required value of engine torque necessary to maintain the vehicle speed set by the driver.

  The control unit 922 executes cruise control that maintains the vehicle speed set by the driver in accordance with information indicating that the realization accuracy of the engine torque is reduced and information indicating that the estimation accuracy is reduced. For example, when information indicating that the accuracy of realizing the engine torque is reduced or information indicating that the estimation accuracy is reduced is output from the engine control system 700 to the cruise control system 900, at least a part of the driving region (vehicle speed) Fail safe such as stopping (prohibiting) cruise control in a load, etc.).

  Further, in the present embodiment, the fail safe of cruise control is executed in a different manner depending on the amount of reduction in engine torque realization accuracy and the amount of reduction in estimation accuracy. For example, the region (vehicle speed, load, etc.) where the cruise control is stopped is changed according to the reduction amount of the engine torque realization accuracy and the reduction amount of the estimation accuracy. The region where the cruise control is stopped is increased as the amount of decrease in the accuracy of realizing the engine torque is larger or the amount of decrease in the estimated accuracy is larger.

  As described above, according to the control device according to the present embodiment, in the engine control system, information indicating abnormality of a plurality of devices affecting the realization or estimation of engine torque is collected. When an abnormality is detected in at least one of a plurality of devices that affect the realization or estimation of engine torque, information indicating that the accuracy or estimation accuracy of engine torque is reduced is output. The The transmission control system performs control to compensate hydraulic pressure such as line pressure and road surface gradient when information indicating that the accuracy of realizing the engine torque is reduced or information indicating that the estimation accuracy is reduced is output from the engine control system. Fail-safe such as prohibition of shift control based on The cruise control system performs fail-safe such as stopping the cruise control when information indicating that the accuracy of realizing the engine torque is reduced or information indicating that the estimation accuracy is reduced is output from the engine control system. As a result, even if the information specific to the device in which the abnormality is detected is not output from the engine control system to the transmission control system or the cruise control system, information indicating that the accuracy or estimation accuracy of the engine torque is reduced is output. Thus, processing such as fail-safe can be executed in the transmission control system or the cruise control system. Therefore, the same transmission control system or cruise control system can be used for different engine control systems. As a result, it is possible to perform control according to an abnormality of a device that affects the engine torque, and it is possible to make a transmission control system and a cruise control system common to different types of engines. For example, as shown in FIG. 8, a gasoline engine is mounted on a vehicle and an engine control system for the gasoline engine is installed, and a diesel engine is mounted on the vehicle as shown in FIG. The transmission control system cruise control system can be made common when the is installed.

  In addition to the information indicating the abnormality of the device, as illustrated in FIG. 10, information indicating that the engine control system 700 has executed the fail safe of the engine 100 may be aggregated. In this case, when the engine control system 700 performs fail-safe of the engine 100, information indicating that the accuracy of realizing the engine torque is reduced or information indicating that the estimation accuracy is reduced may be output.

  In addition, information indicating whether or not the actual accuracy of the engine torque is reduced or information indicating that the estimation accuracy is reduced is indicated by information indicating whether or not to notify the driver of the abnormality of the engine 100 according to the device in which the abnormality is detected. May be included and output.

  That is, whether or not to notify the driver of an abnormality in the engine 100 is distinguished depending on the device in which the abnormality is detected, and information indicating that the realization accuracy of the engine torque is reduced or information indicating that the estimation accuracy is reduced. May be output.

  For example, when an abnormality of the throttle valve 1030 is detected, information indicating that the abnormality of the engine is notified to the driver is included in order to notify the driver of the abnormality of the engine 100 by turning on the indicator lamp. You may make it output the information which shows that the implementation | achievement precision of torque falls, or the information which shows that estimation precision falls.

  On the other hand, when an abnormality of a device (for example, the cam position sensor 704) that has a small influence on the torque realization accuracy or the estimation accuracy is detected, it does not include information indicating that the abnormality of the engine is notified to the driver. You may make it output the information which shows that the implementation precision of engine torque falls, or the information which shows that estimation precision falls.

  Furthermore, referring to FIG. 11, a notifying unit 736 that outputs information for notifying that the realization accuracy of the engine torque is reduced when a condition where the realization accuracy of the engine torque is predicted to be reduced is satisfied, The output unit 732 of the engine control system 700 may have.

  That is, when an abnormality of at least one of a plurality of devices affecting the realization or estimation of engine torque is detected, information indicating that the realization accuracy or estimation accuracy of engine torque is reduced is output. In addition, when a condition where it is predicted that the realization accuracy of the engine torque is reduced is satisfied, information for notifying that the realization accuracy of the engine torque is lowered may be output.

  The conditions for which the realization accuracy of the engine torque is predicted to decrease are, for example, conditions determined with respect to the retard amount of the ignition timing and the retarded time. When the ignition timing is retarded excessively, the ignition timing retardation is limited or prohibited even if there is a request to reduce the engine torque in order to prevent overheating of the three-way catalyst 1070. Therefore, it is predicted that the realization accuracy of the engine torque will decrease.

  When there is a high possibility that the realization accuracy of the engine torque will be reduced within a predetermined time, by turning on the flag, information for notifying that the realization accuracy of the engine torque will be reduced is output. For example, if the product of the retard amount of the ignition timing and the retard time is equal to or greater than a threshold value within a predetermined time, turning on the flag may reduce the accuracy of realizing the engine torque. Information to be notified is output. Also, the time when the realization accuracy of the engine torque decreases, that is, the time itself that elapses until the realization accuracy of the engine torque decreases may be output.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a schematic block diagram which shows the power train of a vehicle. It is a schematic block diagram which shows an engine. It is a figure which shows a swirl control valve and ACIS. It is a figure which shows the state which the ACIS valve closed. It is a figure which shows the state which the ACIS valve opened. It is a figure which shows an engine control system, a transmission control system, and a cruise control system. It is a functional block diagram (the 1) of an engine control system, a transmission control system, and a cruise control system. It is a figure which shows the engine control system, transmission control system, and cruise control system of the vehicle by which a gasoline engine is mounted. It is a figure which shows the engine control system, transmission control system, and cruise control system of a vehicle carrying a diesel engine. It is a functional block diagram (the 2) of an engine control system, a transmission control system, and a cruise control system. It is a functional block diagram (the 3) of an engine control system, a transmission control system, and a cruise control system.

Explanation of symbols

100 engine, 200 automatic transmission, 300 torque converter, 400 propeller shaft, 500 differential gear, 600 rear wheel, 700 engine control system, 702 crank position sensor, 704 cam position sensor, 706 water temperature sensor, 708 air flow meter, 710 throttle opening Sensor, 720 realization unit, 722 estimation unit, 724 abnormality detection unit, 726 correction unit, 728 prohibition unit, 730 calculation unit, 730 aggregation unit, 732 output unit, 734 calculation unit, 736 notification unit, 800 transmission control system, 802 position Switch, 804 accelerator opening sensor, 806 input shaft rotational speed sensor, 808 output shaft rotational speed sensor, 810 oil temperature sensor, 8 2 shift lever, 814 accelerator pedal, 820 calculation unit, 821 first control unit, 822 second control unit, 824 estimation unit, 900 cruise control system, 920 calculation unit, 922 control unit, 1020 air cleaner, 1030 throttle valve, 1032 intake Pipe, 1040 cylinder, 1050 injector, 1060 spark plug, 1070 three-way catalyst, 1090 crankshaft, 1100 intake valve, 1110 exhaust valve, 1120 intake camshaft, 1130 exhaust camshaft, 1200 swirl control valve, 1202 motor, 1300 ACIS, 1302 ACIS valve, 2000 intake VVT mechanism, 3000 exhaust VVT mechanism.

Claims (24)

A vehicle control device equipped with a drive source,
Detection means for detecting an abnormality of a plurality of devices affecting the output torque of the drive source;
Collecting information indicating the abnormality of the plurality of devices, and reducing the accuracy of the output torque of the drive source when an abnormality of at least one of the plurality of devices is detected. Output means for outputting the indicated information;
A control device for a vehicle, comprising: control means for controlling the vehicle according to information indicating that the accuracy of the output torque of the drive source is reduced. Means for controlling the drive source to achieve the required value of output torque,
The detection means includes means for detecting an abnormality of a plurality of devices affecting the realization of the output torque of the drive source,
The output means reduces the realization accuracy of the output torque of the drive source when an abnormality is detected in at least one of a plurality of devices that affect the realization of the output torque of the drive source Means for outputting information indicative of the quantity;
2. The vehicle control device according to claim 1, wherein the control unit includes a unit for controlling the vehicle in a different manner depending on an amount of reduction in the realization accuracy of the output torque of the drive source. For each of the plurality of devices, the amount of reduction in the realization accuracy of the output torque of the drive source is determined,
The vehicle control device according to claim 2, further comprising a calculation unit configured to calculate a reduction amount of the realization accuracy of the output torque of the drive source according to a device in which an abnormality is detected.   The calculating means is a means for calculating a reduction amount of a device having the largest reduction in output torque realization accuracy among a plurality of devices in which an abnormality has been detected as a reduction amount in output torque realization accuracy of the drive source. The vehicle control device according to claim 3, comprising: Estimating means for estimating the output torque of the drive source;
If the difference between the required value of the output torque and the estimated value is greater than or equal to the threshold value, the difference between the required value of the output torque and the estimated value is calculated as the amount of reduction in the realization accuracy of the output torque of the drive source. And further comprising means,
If the difference between the output torque request value and the estimated value is greater than or equal to the threshold value, the detection means may cause an abnormality in any one of a plurality of devices that affect the realization of the output torque of the drive source. The vehicle control device according to claim 2, further comprising means for detecting Means for controlling the drive source to achieve the required value of output torque,
The detection means includes means for detecting an abnormality of a plurality of devices affecting the realization of the output torque of the drive source,
When the output unit detects an abnormality of any one of a plurality of devices that affects the realization of the output torque of the drive source, the accuracy of realizing the output torque of the drive source decreases. Means for outputting information indicative of
The vehicle control device according to claim 1, wherein the control means includes means for controlling the vehicle according to information indicating that the realization accuracy of the output torque of the drive source is reduced.   The detection means detects a state in which the drive source is operated under a predetermined condition as an abnormality of at least one of a plurality of devices affecting the realization of the output torque of the drive source. The vehicle control device according to claim 6, further comprising means for   The vehicle control device according to claim 7, wherein the condition is a condition that a temperature of cooling water of the drive source is a threshold value or less.   The vehicle control device according to claim 7, wherein the condition is a condition that an altitude of the vehicle is equal to or greater than a threshold value. Means for correcting a control mode of the drive source according to an operating condition of the drive source;
When the execution state of the correction of the control mode of the drive source is the first state, a state in which the drive source is operated under a predetermined condition affects the realization of the output torque of the drive source. In the second state where the correction amount of the control mode of the drive source is larger than that in the first state. Prohibiting detection of a state in which a drive source is operated under a predetermined condition as an abnormality of at least one of a plurality of devices that affect the realization of output torque of the drive source The vehicle control device according to claim 7, further comprising means. An estimation means for estimating the output torque of the drive source;
When the difference between the output torque request value and the estimated value is greater than or equal to a threshold value, the detection means detects an abnormality of any one of the plurality of devices that affects the realization of the output torque of the drive source. The vehicle control device according to claim 6, comprising means for detecting.   The output means indicates that the realization accuracy of the output torque of the drive source decreases when an abnormality is detected in any of a plurality of devices that affect the realization of the output torque of the drive source. In addition to outputting information, information for notifying that the realization accuracy of the output torque of the drive source is reduced when a condition where the realization accuracy of the output torque of the drive source is predicted to be reduced is satisfied The vehicle control device according to claim 6, further comprising a notice unit for outputting   13. The vehicle control device according to claim 12, wherein the notice means has means for outputting information for notifying that the realization accuracy of the output torque of the drive source is lowered by turning on the flag.   The vehicle control device according to claim 12, wherein the notice means has means for outputting a time when the realization accuracy of the output torque of the drive source is reduced. An estimation means for estimating an output torque of the drive source;
The detection means includes means for detecting an abnormality of a plurality of devices affecting the estimation of the output torque of the drive source,
The output means reduces the estimation accuracy of the output torque of the drive source when an abnormality is detected in at least one of a plurality of devices that affects the estimation of the output torque of the drive source Means for outputting information indicative of the quantity;
The vehicle control device according to claim 1, wherein the control means includes means for controlling the vehicle in a different manner depending on an amount of decrease in estimation accuracy of output torque of the drive source. A reduction amount of the estimation accuracy of the output torque of the drive source is determined for each of the plurality of devices,
The vehicle control device according to claim 15, further comprising a calculation unit configured to calculate a reduction amount of the estimation accuracy of the output torque of the drive source according to a device in which an abnormality is detected.   The calculation means is a means for calculating the amount of decrease in the estimated accuracy of the output torque of the drive source as the amount of decrease in the estimated accuracy of the output torque of the drive source, among the plurality of devices in which abnormality is detected. The vehicle control device according to claim 16, comprising: An estimation means for estimating the output torque of the drive source;
The detection means includes means for detecting an abnormality of a plurality of devices affecting the estimation of the output torque of the drive source,
The output means reduces the estimation accuracy of the output torque of the drive source when an abnormality is detected in at least any one of a plurality of devices affecting the estimation of the output torque of the drive source Means for outputting information indicating that,
The vehicle control device according to claim 1, wherein the control means includes means for controlling the vehicle in accordance with information indicating that the estimation accuracy of the output torque of the drive source is reduced.   The detection means detects a state in which the drive source is operated under a predetermined condition as an abnormality of at least one of a plurality of devices that affects the estimation of the output torque of the drive source. The vehicle control device according to claim 18, further comprising means for   The vehicle control device according to claim 19, wherein the condition is a condition that a temperature of cooling water of the drive source is equal to or lower than a threshold value.   The vehicle control device according to claim 19, wherein the condition is a condition that an altitude of the vehicle is equal to or greater than a threshold value. A first calculating means for calculating a first estimated value of the output torque of the driving source from the driving state of the vehicle;
The estimation means includes second calculation means for calculating a second estimated value of the output torque of the drive source from the operating state of the drive source,
If the difference between the first estimated value and the second estimated value is greater than or equal to a threshold value, the detecting means is any one of a plurality of devices that affect the estimation of the output torque of the drive source. The vehicle control device according to claim 15, further comprising means for detecting an abnormality of the device. The first calculation means includes means for calculating the first estimated value from at least one of a speed ratio of a fluid coupling coupled to the drive source and acceleration of the vehicle,
23. The vehicle control device according to claim 22, wherein the second calculation means includes means for calculating the second estimated value from an amount of air taken into the drive source.   The vehicle control according to any one of claims 1 to 23, further comprising means for outputting information indicating whether or not to notify the driver of the abnormality of the drive source in accordance with the device in which the abnormality is detected. apparatus.

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