WO2019044275A1 - Inertia travel control system for automobiles - Google Patents

Abstract

[Problem] To provide a system which identifies a travel mode that contributes to enhancing the fuel efficiency of an automobile, and which automatically controls said travel mode. [Solution] This problem is solved by means of a travel control system utilizing inertia and potential energy during automobile travel, the system characterized by being provided with means for automatically controlling either a portion of or all traveling methods which utilize either the vehicle inertial force or potential energy, or both, during automobile travel on public roads and in which the drive power connection of the automobile is turned on and off. In particular, the system is additionally provided with a configuration in which engine braking is not used during downhill travel, and control which reduces the idling rotational speed while the drive power connection is "off" and the engine is "on" when the vehicle speed is controlled to a set value or lower. Additionally, the travel mode utilizing inertial force is applied to an electric vehicle, inertial force and braking force (a regenerative braking system is provided) are converted to electricity, and the consumption of electricity is reduced.

Description

Automotive inertial travel control system.

The present invention relates to a control system that contributes to the improvement of fuel efficiency by utilizing the inertia when the vehicle is traveling.

Both manufacturers and users are interested in improving the fuel efficiency of automobiles, and the current situation is that each manufacturer is struggling to extend the travel distance per liter even by 1 km.

JP, 2015-58783, Control device of a hybrid vehicle. JP, 2016-60372, A vehicle control device and its control method. JP, 2012-47148, A control device of vehicles.

A clutch 4 is interposed between the engine 2 and the motor 3, and the motor 3 is connected to the drive wheels 9 to constitute a hybrid type track 1. When the coast travel control start condition is satisfied based on the driver's off operation of the accelerator pedal 14 or the like, the transmission 5 is returned to neutral and the vehicle 2 is coasted by disconnecting the engine 2 and the motor 3 from the drive wheels 9 side. . During the coasting control, the engine 2 is cut off from fuel, and the engine 2 is maintained at the idle rotational speed by the drive of the motor 3 to continue the operation of the accessory 2a. The restart of the engine is started by driving the motor 3 with the end of the coast travel control.
The vehicle ECU 13 acquires these various information from the navigation device 31 and the communication device 32, and executes coast travel control based on the prediction of the road condition on the travel route of the own vehicle, and the driver's accelerator operation as usual. There is a technology (for example, Patent Document 1) according to which coast driving control can be performed based on the above.

* The technical difference between Patent Document 1 and the present application is that, in Patent Document 1, fuel is cut during coasting control for coasting the vehicle 1 and then the engine 2 is kept at idle rotation speed by driving the motor 3 However, even if the fuel is cut, the electricity for idling the engine 2 is consumed (even if the fuel is cut, the engine does not take in air → compression → does not explode → exhaust cycle is performed) and restart is While the motor is started by driving the motor 3 with the end of coasting control, the present application is restarted by an operation (pushing technique) only for turning on the driving force connection (clutch) during inertia running The points are different.

In step S303, the controller 12 determines whether the road ahead is a descending slope and whether the slope θ of the descending slope is smaller than a predetermined slope θ1, that is, whether the slope θ of the descending slope is a gentle downward slope. . When the vehicle travels on a downhill and the brake pedal 52 is depressed while the engine 1 is stopping, the predetermined gradient θ1 is insufficient in braking force due to the assist by the brake booster 83 using the negative pressure generated by the electric vacuum pump 9 This is the minimum value of the slope that does not occur. If the road surface slope θ is smaller than the predetermined slope θ1, the process proceeds to step S304. If the road surface slope θ is equal to or greater than the predetermined slope θ1, the process proceeds to step S305. Here, the slope θ indicates that the road slope on the downhill becomes steeper in the downward direction as the slope θ becomes larger, the road slope on the downhill becomes smaller as the slope θ becomes smaller, and becomes flat when the slope θ becomes zero. There is a technology (for example, patent document 2) which shows that it is a road.

* It is used as a braking means during inertia running with the engine stopped by generating negative pressure with the electric vacuum pump described in Patent Document 2 above, and the driving force connection is turned off in the above-mentioned automatic control means A and B described in the present application. This is a technology equivalent to a braking system capable of braking the speed by traveling with the engine turned off.

A control device of a vehicle capable of securing a long running time and a long running distance by a coasting in a running vehicle, the device being within a vehicle speed range where the vehicle speed V of the vehicle is determined by the lower limit vehicle speed V0 and the upper limit vehicle speed V1. At some time, if the vehicle speed V is the vehicle speed V0 or more, the engine is stopped by fuel cut and the clutch is released to run the vehicle by coasting. When the vehicle speed V falls below the vehicle speed V0, the engine is started by the fuel supply and the clutch When it is necessary to stop the vehicle by engaging and accelerating (constant speed free running), stop the engine by fuel cut until the vehicle stops and release the clutch and run the vehicle by coasting (stop Free run), engage the clutch and apply braking by engine brake and brake operation. There is a technology (for example, patent document 3) which was able to secure long travel time and travel distance by coasting by this, and improved fuel consumption.

* Although the freewheeling technology described in Patent Document 3 is applied to the present invention, it can be said that the present application is different from the point that the engine brake is not used.

Although many systems have been disclosed that automatically control the travel mode that utilizes the inertial force during travel that contributes to the improvement of the fuel efficiency of a car, the engine is stopped and the clutch is released and the vehicle is run by coasting ( Engine stop free run) Develop engine restart means technology to restart the engine without using the starter when the driving force connection is ON, and further release the clutch and freewheel when the traveling speed of the car is less than the set value It is an issue to provide an engine idling speed automatic control means which makes it possible to turn on the engine and drive idling during traveling, but which further lowers the engine idling speed during idling by automatic control.
Furthermore, a configuration for adapting the driving means utilizing the above inertial force to the electric vehicle is found, and in this configuration, a configuration for converting the braking force into electricity is additionally provided.

The first invention is
An automatic control means A is provided to automatically control ON / OFF of the driving force connection when the traveling speed of the car is higher than the set value, which is a traveling mode of the car utilizing the inertia force of the car when traveling on a public road. The automatic control means A is a restart means for stopping the engine while turning off the driving force connection and reactivating the engine even when not using the starter when the driving force connection is turned on. (The technique of pushing) is provided, and either the traveling speed of the vehicle becomes lower than the set value during cycle traveling with the automatic control means A, or either the accelerator operation or the above-mentioned driving force connection operation or driving force release operation. A braking system is capable of braking the speed by traveling with the driving force connection turned off and the engine turned off in the automatic control means A when manual control is canceled when automatic control enters (for example, Patent Document 2) The engine is turned on when the driving force of the automatic control means A is off when the traveling speed of the vehicle is less than the set value. The present invention provides a vehicle inertial traveling control system characterized by idling rotation.

* With the above automatic control means A,
Start the car, with the accelerator pedal operation in the holding state (vehicle speed holding state · accelerator OFF) driving power connection "OFF" · engine "OFF" to travel with inertia by the inertia force of the car The drive power connection is turned "ON" · engine "ON" when traveling speed in the accelerator petal holding state is lowered by about 1 to 5%, and this cycle is repeated in a cycle to repeat the traveling until the above holding state is reached. Automatic control is released and automatic control is released and the engine is turned "ON" when the speed becomes lower than the set value or when manual operation of either the accelerator operation or the drive power connection operation or the drive power release operation is entered. And then return to the above automatic control means A, or shift to idle speed control at the time of driving power connection “OFF” of automatic control means C (described later) (or A control system that either operation as either).
The speed below the set value is the speed at which a shock (for example, 40 km / h) that does not feel an impact as "gunk" at the time of drive power connection corresponds to the set value, but when drive power is connected near the set value It is preferable to set the lower limit set value (for example, 45 km / h) to a value obtained by increasing a few% of the speed at which the impact does not occur.
* Restarting means to restart the engine without using a starter (push technology) and about the above-mentioned engine restarting means, about 30 years ago forgetting to turn off the headlights and battery rising When the driver does not work, put the driver in the car and put the change into 1st or 2nd speed, and let the clutch step on, then push the car from behind with 4 or 5 people and the speed becomes 4 to 5 Km / H When the engine was started (clutching technology), the engine was started by rotating the crankshaft with an external force (such as a starter motor), which caused intake → compression in the engine. → Explosion → The engine itself moves up while exhaust is taking place → → The crankshaft starts 2 to 5 revolutions, and if there is fuel, air and a spark of the spark plug, the engine will start. As a method other than the starter that rotates the crankshaft in the middle of traveling, the engine restarts just by connecting the driving force if there is rotational power after the clutch that is traveling with only inertia when the clutch is "OFF". The inertia force differs depending on the weight of the car, so the vehicle speed at the time of driving force connection which hardly feels an impact as "gunking" at the time of connecting the driving force differs depending on the car's weight of the car. Most of them are 40-50 Km / H or more, but since the inertia force is different between the loaded large 20Ton car and the light passenger car, the setting is set in consideration of the inertia force which varies depending on the weight of the car.

The second invention is an automatic control means B that travels with potential energy when traveling on a public road of a car, that is, travels with power from traveling from slope to slope with this potential energy, and the traveling speed of the car is a set value The automatic control means B that automatically controls ON / OFF of the driving force connection at the above time is provided, and the automatic control means B stops the engine while the driving force connection is OFF, and the driving force connection is performed. When the switch is turned on, the starter is provided with restart means (push technology) to restart the engine without using it, and the running speed of the car is set during cycle running with the automatic control means B. Manual operation with automatic control canceled is performed when either of the following operations, acceleration operation, or the above driving force connection operation or driving force release operation is entered, and the above driving force connection is turned off in the above automatic control means B. The vehicle is equipped with a braking device capable of braking the speed by traveling with the engine off, and is equipped with a braking device capable of withstanding the assumed number of operations on a long downhill, and the above-mentioned automatic when the traveling speed of the above-mentioned vehicle is less than a set value. According to a first aspect of the present invention, there is provided a vehicle inertial traveling control system as described in the first aspect of the invention, characterized in that when the driving force of the control means B is OFF, the engine is ON and idling is performed.
* The above-mentioned automatic control means B is the automatic control means B which utilizes the potential energy of the car, but the driving force connection “OFF” traveling or “ON” traveling by the automatic control means A utilizing the inertial force of the car If the speed is up but you are not accelerating, it is a downhill. If the speed at this time is further accelerated above the set value, the driving power connection is turned "OFF" to turn the engine "OFF" and the car In the mode of traveling with inertia, braking or additional acceleration (automatic control is canceled in the case of additional acceleration) due to slope of slope, length of slope, curvature of path, etc. is manual operation, the above position If the speed becomes lower than the set value during coasting using energy, the automatic control is canceled and the engine is turned on and then idling is performed, or additional acceleration is performed, or the above automatic control hand A control system for whether to shift to the idling rotational speed control when the driving force connection A or the automatic control unit B running either automatic control unit C "OFF · Engine ON" (or manual operation with either).

A third aspect of the invention is a traveling mode when the traveling speed of the automatic control means A and the automatic control means B is less than a set value, and the engine ON at the time of the driving power connection OFF of the automatic control means A and the automatic control means B. The engine idling speed automatic control means C is provided to automatically lower the speed of the engine idling speed at the time of engine idling by automatically controlling the engine idling speed automatic control means C while the driving power connection is turned off. The engine idling speed control means C is provided to control the engine idling speed to a low speed by automatically controlling ON / OFF of one or both of the generator and the coolant pump according to the charge amount of the battery and the coolant temperature. To provide a vehicle inertial traveling control system characterized by things.
* With the above engine idling speed automatic control means C,
The automatic control means C is a traveling mode at or below the speed setting value of the automatic control means A and the automatic control means B, and in traveling (and stopping) in the traveling mode, the engine "ON" and driving force connection " It is idling speed control of the engine at the time of "OFF", and is provided with "idling speed control means to reduce the idling speed" of the engine in the traveling mode of driving power connection "ON · OFF". At the time of "OFF" to reduce fuel consumption,
The automatic control means C does not drive at least one of the generator E using the rotational power of the engine and the pump P for circulation of coolant when the driving power is "OFF", and thus the idling rotational speed Control to lower the
Specifically, the generator E is provided with a means for preventing operation when the charge amount of the battery is equal to or more than the lower limit set amount while the driving force connection is "OFF" at the time of coasting and stopping. The pump P for circulating the coolant is provided with means for preventing the operation if the temperature is within the upper limit set temperature of the coolant temperature by decreasing the engine rotational speed (reducing the idling rotational speed) to such an extent that the pump P for circulating the coolant is provided. Is the control that can reduce the engine speed by as much as the driving force of
* For example, the power transmission of the generator E and the pump P for coolant circulation is performed by a V-belt (in most automobiles), but a planetary pulley is provided between the V-belt pulleys to press the pulley in the V-belt tensioning direction The generator E or the coolant circulation pump P is operated under the condition of driving (stopping) either the generator E to be controlled or the pump P for circulation of coolant by being configured to pull back in the ON loose direction and to be OFF. The engine is configured to drive (stop) one or both of them and to reduce the idling speed of the engine when the drive power connection is “OFF”.
* As another additional configuration above, there are many opportunities (hours) to further reduce the idling speed of the engine by either increasing the storage capacity of the battery or changing the quality and quantity of the coolant. It can.
* When the traffic signal in front of you sees yellow or red, coasting when you see a small traffic jam in front of an accident or construction or when the lane is reduced in front of the traffic light or the engine when you stop during the chocolate chocolate travel in the traffic light Control to reduce the idling speed of.
* Having a braking system that can withstand the expected number of operations on a long downhill
Drum brakes · Disc brakes (A 4-port piston fixed caliper system or a ventilated disc system with a ventilation structure added to the inner surface of the disc rotor is also in practical use) · Brakes from pneumatic brakes and various types of brakes Even if it is used frequently, it can be coped with by adopting a method in which the pad is hard to overheat. For example, in the case of a vehicle adopting a pneumatic brake, the engine is started and the pressure of the air tank is activated when the pressure of the air tank reaches the lower limit setting. It is also possible to add a control circuit that raises the pressure in the tank to avoid an air pressure shortage in the tank.

A fourth aspect of the invention relates to an electric drive mode of the automatic control means A and the automatic control means B (with the driving force being, for example, a motor, "ON", "OFF", and engine reactivation of the engine by the automatic control means A and B). There is no starting means (pushing technology), and the power supply is always adapted to "ON". There is provided automatic control means D for automatically controlling ON / OFF of the driving force connection of the vehicle. The automatic control means D can immediately operate the accelerator when the drive force connection is turned on during the drive force connection "OFF" travel, and the drive force connection can be further performed during cycle travel in the automatic control means D. The automatic control means D is released when an operation, a driving force release operation or a braking operation (braking operation) is entered, and when the braking operation (braking operation) is entered, the braking force is converted into electric energy by power generation. Storage in There is provided an inertial running control system for a motor vehicle, characterized in that a regenerative braking means reutilized as energy for running is provided to shift to the regenerative braking means.
* The automatic control means D is a traveling mode for reducing the consumption of the electricity stored in the capacitor by utilizing the inertial force during traveling of an automobile (for example, an electric automobile) traveling with electricity as a motive power. The control means A and B save the fuel in the traveling mode of driving force connection "OFF" and engine "OFF" while the automatic control means D motive power instead of the engine. Therefore, it is not necessary to turn off the engine "OFF" when the drive power connection "OFF" in the above automatic control means A and B (it is good if the power is "ON"). Because it accelerates (or starts), engine restart means (push technology) in the above automatic control means A and B is unnecessary, and the driving force connection “OFF” is the inertial running time, and the driving force connection “ Accelerator at ON In the configuration that can be operated, when the driver makes a "breaking operation" while traveling in the traveling mode, the motor is rotated by the rotational force of the wheels and used as a generator, and the regenerative brake cooperates with the hydraulic brake By controlling, kinetic energy which is originally discarded as heat by deceleration is provided with regenerative braking means which converts it into electrical energy and recovers it to the battery.

In the fifth invention, the electric drive (the driving force is, for example, a motor, so there is no "ON", "OFF", or engine restart means (push technology) of the engine in the automatic control means A and B, and the power supply is always In addition to the technology adapted to "ON"), the regenerative brake of the above-mentioned regenerative braking means is activated not only at the time of the brake operation but also at the time of the accelerator "OFF" at the low speed setting speed (for example, about 10 Km / H at low speed) The present invention provides a vehicle inertial traveling control system characterized by a car.
* In addition to the above technology, the regenerative brake of the above-mentioned regenerative braking means is activated not only at the time of the brake operation but also at the time of the accelerator "OFF" below the low speed setting speed (about 10 Km / H at low speed) In the form of repeating acceleration and deceleration like this, it is a preferable form.
* The driving force connection "ON" · "OFF" of the above automatic control means D is, for example, the accelerator "OFF" state where the speed to be traveled (desired set speed) is 65 Km / h to the speed of 66 to 68 Km / h. When the driving force connection "OFF" travels with inertia force and the speed decreases by 2 to 3 km / h, the driving force connection is turned "ON" and returned to the speed of 66 to 68 Km / h by the accelerator operation. (The shorter the speed at which the inertial force starts traveling and the interval at which the driving force connection is turned ON, for example, to 1 to 3 seconds, the less uneven the speed.)

* The gist of the automatic control means D described above is that driving on a substantially flat road is provided with a driving force connection between the electric drive (for example, a motor) and the driving wheel “ON” / “OFF” of the driving force connection Automatically controls the speed at which you want to travel (desired setting speed) by operating the driving force connection part “ON” and accelerator “ON”, and when the desired setting speed is reached, you travel with the inertia force driving power “off”. When it falls 2 to 3 km / h, the driving force connection is set to "ON" and the cycle to return to the set speed is automatically controlled. The driver's manual driving force connection "ON", "OFF", accelerator during the automatic control traveling. The automatic control of the automatic control means D is canceled when the operation / braking operation is entered.
* Driving force connection ON / OFF driving on the above-mentioned substantially flat road is a downhill when the car accelerates without operating the accelerator, and "driving on a down slope" is driving power connection accelerating when the car does not operate the accelerator " When traveling in the OFF state, the driver's brake ON → Automatic control of the automatic control means D is canceled and at the same time the regenerative brake is activated → brake OFF → regenerative brake OFF → acceleration with position energy (drive force connection to accelerate even though accelerator operation is not performed It is a traveling mode that travels with driving force connection “OFF” and controls the speed by manual (driver) brake operation, and if the accelerator can not be accelerated if the accelerator is not operated after the above brake operation. Shift to traveling on a substantially flat road.
* Under the low speed setting speed (for example, about 10 Km / H at low speed) under the condition of the traveling road (for example, a signal, a sharp curve, an oncoming car passing waiting to turn to the right and the following car causes a small traffic jam) In the above driving, the regenerative brake of the above-mentioned regenerative braking means is operated not only at the time of the brake operation but also at the time of the accelerator "OFF".

* Reuse the deceleration energy, regenerative brake system when you step on the brake, turn the motor by the torque of the wheel, use it as a generator (generator), and coordinate control of the regenerative brake with the hydraulic brake, it is essentially deceleration Converts kinetic energy, which is discarded as heat, into electrical energy, recovers it to a battery, and reuses it as energy for traveling. Since a traveling pattern which repeats acceleration and deceleration like traveling in a city has a high energy recovery effect, it is preferable to preferentially use regenerative braking in a low speed region (for example, low speed setting speed).

In the present invention, the engine brake is not used during the downward slope inertia force traveling of the automatic control means B, but a control for generating a braking force (a braking force at the time of engine braking) equivalent to the engine brake can be performed. There is a downhill inertia force → conversion to electricity → storage of electricity in the capacitor → electricity is used as a driving force, and electricity is not used with only downhill inertia force (eg expected operation on long downhill Any means can be selected in relation to the equipment cost etc. provided with a braking device that can withstand the number of times.

* As a disclosed technology related to the above-mentioned regenerative braking system,
For example, the regenerative braking control device described in "Japanese Patent Laid-Open No. 2011-234540" is suitably applied to a vehicle having a rotating electrical machine configured to be capable of generating a regenerative braking force at the time of braking. The control means performs control to generate a braking force equivalent to the engine brake (engine braking equivalent braking force) when the accelerator is turned off, using at least the regenerative braking force. Specifically, the control means performs control to make the engine brake equivalent braking force generated when the accelerator is off larger as the vehicle speed is lower than when the vehicle speed is high. Thereby, the amount of deceleration energy recovery by regeneration can be increased. Therefore, the regeneration efficiency can be improved, and the fuel consumption can be improved. * Also, in the description of "Japanese Patent Laid-Open No. 2014-50245 vehicle and generator", in the power generation method during traveling, in a vehicle having a power generation method that does not consume energy for traveling in addition to regenerative power generation A generator driven by air pressure or air flow provided at the air piping 4 and the air outlet 17 between the air piping 4 of the air supplied from the air tank 2 to the air brake 3 or the air brake 3 and the atmosphere Can be generated by air pressure or air flow.

The fuel consumption of at least 5% was improved in the trial run of the vehicle running form.
(5 to 10 times fuel-full tank → full-tank measurement in the trial run experiment of a private-owned vehicle "commercial vehicle using a gasoline engine with 1500cc") Improved fuel efficiency by 5 to 10% The actual value of the fuel efficiency improvement is the above automatic control Among the means A and B, the running control of "engine off" and the idling control means of the automatic control means C are the actual values not provided.)

Preferably, the driver is made to recognize that the vehicle is traveling by the automatic control means A, the automatic control means B, the automatic control means C, and the normal driving means (e.g. ) Add structure.

Furthermore, there are also cases where driving can not save (when driving in a hurry), so if the driver can select and use multiple patterns of the driving mode, or if the driver can carry out multiple patterns of the driving mode. It may be possible to set it,
As an example of the pattern to be selected, in the case of the automatic control means A, after the accelerator petal operation is in the holding state (vehicle speed holding state) in the cycle of "ON / OFF" of the driving force connection, the driving force connection is "off" For example, there is provided a selection operation unit capable of selecting the driving power connection “ON” when traveling by for 4 seconds and how many% falls from the vehicle speed in the holding state, etc. and the pattern not saving operation. Is preferred.

* The desired set speed mentioned above can be obtained from the speed limit of the public road of car navigation (or GPS), for example, or set manually by the driver's manual accelerator operation (for example, enter 80 km / h on the highway and press the button to set) Drive power connection "OFF" · "ON" width (for example, drive power connection "OFF" at 82 Km / h and drive power connection "ON" at 79 Km / h) preset based on the speed set by You can also set it.

* In the other example of the driving of the driving force connection C described above, the means for turning off the driving force connection traveling when at least the first red or yellow signal in the forward direction is viewed is red or yellow. When you visually recognize the traffic light or try to turn right in front of you, when you see the car stopping temporarily while waiting for the oncoming vehicle to pass, or when it is squeezed into one lane during construction or an accident (small traffic condition) When you visually recognize the state of the situation, etc., switch the switch by manual operation of the driver at the time of visual recognition, for example, attach it to the shift lever part of the transmission and switch by driver's operation (for example, push a push button etc.) It can also be configured to travel with inertia until it stops (when the inertia force is insufficient, additional accelerators are used).
The operation relating to the post-stop vehicle operation is from the start in the normal driving operation of the driver.

To start the 4 to 5 ton truck from 1927 to 27: To start the 4 to 5 ton truck, insert the engine starting tool with the crank rod bent from the insertion opening for inserting the engine starting tool provided at the front center of the bonnet truck The engine was started by turning the engine start tool to the right (or left) three to four times. That is, the engine starting power is such that the power of one adult can start the engine. There is a large difference between the torque (rotation speed * torque) and the engine starting force (the force required for starting is constant) after the driving force connection section traveling with only inertia force at the time of clutch "OFF → ON" Because the theory of absorbing the engine starting force is increased (the larger the rotational force after the driving force connection portion), the test run for confirming the theory was performed.
In the test run, it was confirmed that the engine can be restarted by the "push technology" if "engine ON" and "driving force connection ON" are made from the "engine OFF" and "driving force connection OFF" states.

The control of the automatic control means A and the automatic control means B is a control mainly on the operation of "OFF of driving power connection · engine OFF" and "ON of driving power connection · engine ON" during traveling, and this control is also the driving to the last The driver assists the driver and the driving of the car is manual operation, and when the driver's accelerator operation or driving force connection / driving force release operation is entered during the above cycle driving, the automatic control is canceled and the driver's operation takes priority It is considered as normal driving.

Preferably, during the following vehicle traveling mode, the automatic control means A, B is operated manually as a braking operation relating to holding of the inter-vehicle distance while traveling with the preceding vehicle, and the automatic control means A, B is one end if additional acceleration operation is performed. By releasing the mode and returning it to the running of the automatic control means A and B again, the vehicle following running mode in which the inter-vehicle distance is secured is obtained.

To explain the detailed example of the automatic control means A, for example, when traveling on a substantially flat road at a speed of 60 Km (desired set speed), increase the speed by 63 to 65 Km (about 2 to 5 seconds) this state With the accelerator petal operation held held in the accelerator petal holding state, set the driving power connection to "OFF" and the engine "OFF" (If the driving power connection is set to "ON", the engine can be restarted at any time. Keep the state) Run with the inertia force of the car, depending on the flatness of the road surface, depending on the degree of curvature, but can run for about 3 to 7 seconds, turn the driving force connection "ON" when the speed reaches 60 Km It is a cycle that repeats the operation, and the automatic control is mainly based on “ON of engine ON for driving force connection”, “OFF of engine driving force connection OFF, engine OFF”, and other operations related to traveling are Is that rolling user performs (normal operation operation).
If this cycle interval is shortened, for example, the time to turn off the driving force connection (for example, 1 to 3 seconds), the speed unevenness disappears as the cycle time is reduced (for example, 1 to 3 seconds). Can do.

Most trucks are equipped with braking devices that can be braked when driving power is connected "OFF" engine "OFF", so first implement from truck → tractor, and then expand the range from passenger car, commercial car → electric car → two-wheel vehicle sequentially Is preferred.

It is the scope of the present application to use anything that can be easily conceived from the scope of the scope of claims described in the present application.

Claims (5)

An automatic control means A is provided to automatically control ON / OFF of the driving force connection when the traveling speed of the car is higher than the set value, which is a traveling mode of the car utilizing the inertia force of the car when traveling on a public road. The automatic control means A is a restart means for stopping the engine while turning off the driving force connection and reactivating the engine even when not using the starter when the driving force connection is turned on. The automatic control is performed when the traveling speed of the vehicle becomes lower than the set value during cycle traveling with the automatic control means A, or when either the accelerator operation, the above-mentioned driving force connection operation or the driving force release operation is entered. The automatic control means A is provided with a braking device capable of braking the speed by traveling with the driving power connection OFF and the engine OFF in the automatic control means A, and further, the traveling speed of the automobile There when driving force connection OFF settings following the automatic control means A when is characterized in that dwell as idling the engine ON, automotive inertial running control system. The automatic control means B travels with potential energy when traveling on a public road of a car, that is, travel power from slope to slope down with this potential energy, and the driving force when the traveling speed of the car exceeds the set value Automatic control means B for automatically controlling ON / OFF of the connection is provided, and the automatic control means B stops the engine while turning off the driving force connection and turns on the driving force connection. The starter is provided with restart means for restarting the engine even if not used, and further, whether the traveling speed of the vehicle becomes less than the set value during the cycle traveling with the automatic control means B, the acceleration operation or the above-mentioned driving force connection When either the operation or the driving force release operation is input, the automatic operation is canceled and the manual operation is performed. In the automatic control means B, the driving force connection is turned off and the engine is turned off. It has a braking system capable of braking the speed, and has a braking system capable of withstanding the expected number of operations on a long downhill, and the driving force of the automatic control means B when the traveling speed of the vehicle is less than a set value. When the connection is OFF, the engine is turned on and idling rotation is characterized, and the vehicle inertial running control system. In the running mode when the running speed of the automatic control means A and the automatic control means B is less than the set value, at the time of engine idling with the engine ON at the time of driving power OFF of the automatic control means A and automatic control means B Engine idling speed automatic control means C for automatically lowering the engine idling speed of the engine by the automatic control, and the engine idling speed automatic control means C is configured to charge the battery while the driving power connection is turned off. An engine idling speed control means C is provided to control the engine idling speed to a low speed by automatically controlling ON / OFF of one or both of the generator and the coolant pump according to the coolant temperature. Automotive inertial travel control system. The traveling mode of the automatic control means A and the automatic control means B is adapted to electric drive, and an automatic control means D for automatically controlling ON / OFF of the driving force connection of the vehicle is provided, and the automatic control means D is provided. The control means D enables the accelerator operation immediately when the driving force connection is turned on during the driving force connection "OFF" traveling, and further, the accelerator operation or the driving during the cycle traveling in the automatic control means D. The automatic control means D is released when a force connection operation, a driving force release operation, or a braking operation is entered, and when the braking operation is entered, the braking force is converted into electric energy by power generation and stored in a storage battery for traveling A vehicle inertial traveling control system, comprising: a regenerative braking unit that is reused as the energy of the vehicle, and configured to shift to the regenerative braking unit. In addition to the technology applied to the above electric drive, the vehicle inertia traveling control of the vehicle characterized in that the regenerative brake of the regenerative braking means is operated not only at the time of the brake operation but also at the accelerator "OFF" system.