JP2007321799A - Vehicle transmission control device - Google Patents

Abstract

Provided is a plurality of shift command input devices, and by setting in advance a sequence of shift operations when shift commands from each input device overlap, a shift operation in accordance with the will of the driver as much as possible is achieved. Provided is a vehicle transmission control device which can be used.
In a vehicle transmission control apparatus, a plurality of input devices 1 to 4 for a driver to input a shift command are provided, and a clutch operation and a shift operation are performed based on the shift command to each of the input devices. And a means for receiving a shift command when any of the plurality of input devices is operated after detecting that the plurality of input devices are not operated at all when the shift operation is completed. The configuration.
[Selection] Figure 1

Description

  The present invention relates to a vehicle transmission control apparatus that performs clutch operation and gear shift operation in accordance with a driver's command.

  An automatic transmission mechanism (AMT: Automatic Mechanical Transmission) that operates a manual transmission of a vehicle by driving an actuator by a control device has already been put into practical use in a four-wheeled vehicle, and a control method for an automatic transmission mechanism in a two-wheeled vehicle is proposed. Has been. For example, a method in which the control device recognizes a shift command by operating a switch installed at hand by the driver and performs a shift operation, or a method in which the control device automatically performs a shift operation based on a pre-programmed shift pattern, A method that allows the driver to select both of the above methods has been proposed, and easy driving has become possible. (For example, refer to Patent Document 1).

JP 2002-067671 A

  A vehicle transmission control device that performs a clutch operation and a shift operation based on a shift command from the driver is more comfortable for the driver because it can easily shift gears than a manual transmission. For example, in the case of a motorcycle, it is convenient to provide two shift command input devices at the hand and the foot so that the driver can select according to preference.

  However, in this case, since it is possible to simultaneously input a shift-up command to one shift command input device and a shift-down command to the other shift command input device, the driver mistakenly inputs a shift-up command and a shift-down command. When the input operation is performed at the same time, there is a problem that it is not known which operation is the real driver's operation.

  Further, when one of the shift command input devices fails and the other shift command input device is normal, the shift command of the faulty shift command input device is erroneously recognized and the shift of the normal shift command input device is confirmed. The command may not be accepted.

  The present invention has been made in order to cope with the above-described problems. When a plurality of shift command input devices are provided, a sequence of a shift operation when shift commands from the input devices overlap is preset. Accordingly, an object of the present invention is to provide a vehicle transmission control apparatus that can perform a speed change operation in accordance with the will of the driver as much as possible.

  The vehicle transmission control device according to the present invention is provided with a plurality of input devices for a driver to input a shift command, and a clutch operation and a shift operation are performed based on the shift command to each input device. In the transmission control device, when it is detected that all of the plurality of input devices are not operated when the shift operation is finished, when any of the plurality of input devices is operated, the shift command is issued. It has a means to accept.

  Since the vehicle transmission control device according to the present invention is configured as described above, there is an effect that it is possible to detect that the shift command input device is operated by the driver's intention. This is because, normally, when a driver inputs a shift command, the shift command input device is always operated from a state where it is not operated. In addition, during the speed change operation, even if any of the plurality of input devices is operated, the speed change command is not accepted. Even if the turning operation is performed, the second operation is not accepted, and accordingly, a shifting operation in accordance with the will of the driver is performed.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the vehicle transmission control apparatus according to the first embodiment. The shift-up switch 1 and the shift-down switch 2 are a set of shift command input devices that constitute a shift command input device. Similarly, the shift-up switch 3 and the shift-down switch 4 are another set of shift command input devices. .

  For example, in the case of a motorcycle, the shift command input device is arranged at a place where the driver can operate with his / her hands and feet. The shift switch is configured as a double switch, and when the driver presses the switch, one of the double switches is grounded and the other is opened to detect that the switch is pressed.

  The shift-up switch 1, the shift-down switch 2, the shift-up switch 3, and the shift-down switch 4 are connected to the shift switch input determination means 5. The shift switch input determining means 5 is configured to output a shift command to the shift execution determining means 6 when any shift switch is closed for a filter time or longer.

  Based on information from various sensors such as engine rotation speed information obtained from an engine rotation sensor (not shown), the shift execution determination means 6 sends a motor energization PWM signal to the H bridge control circuit 7 when the vehicle is in a state where a shift operation should not be performed. In addition, the energization direction signal is not output. When there is no problem in the vehicle state, the shift command, and the shift direction and the shift operation is performed, the motor energization PWM signal and the energization direction signal are output to the H bridge circuit 8 via the H bridge control circuit 7 according to a predetermined sequence.

  The H bridge circuit 8 is a motor drive circuit composed of four switching elements, and any two switching elements are turned on by a control signal from the H bridge control circuit 7 to energize the motor 10. The H bridge control circuit 7 outputs a motor energization PWM signal to any two switching elements of the H bridge circuit 8 based on the energization direction signal from the shift execution determination means 6.

  The power of the motor 10 is supplied from the battery 9. The rotation of the motor 10 is decelerated by a gear box (not shown), and a driving force is transmitted to a shift shaft (not shown) by a link mechanism including a lever and a shaft (not shown), and the shift shaft is rotated to perform a shift.

  The shift switch input determination means 5 and the shift execution determination means 6 are constituted by a program in the microcomputer, and output a shift up execution instruction or a shift down execution instruction of the shift switch input determination means 5 to the shift execution determination means 6. It is supposed to be. Thereby, the shift execution determination means 6 outputs the motor energization PWM signal and the energization direction signal to the H bridge control circuit 7 according to a predetermined sequence when the upshift execution command or the downshift execution command is set.

In the above-described embodiment, the description has been made on the assumption that the clutch is connected to the shift shaft and the gear shift and the clutch operation can be performed only by the rotation of the shift shaft. A motor to be performed, an H bridge circuit for driving the motor, and an H bridge control circuit as a control circuit thereof are added.
The shift execution determining means outputs the motor energization PWM signal and the energization direction signal of the clutch when the shift is performed.

  Next, an example of the process of the shift switch input determination means 5 when a plurality of shift switch input devices are provided will be described with reference to the flowchart shown in FIG. Note that the processing in FIG. 2 is performed every predetermined control cycle.

  In step S1, shift switch input filtering is performed. This produces an output when the shift switch is closed for more than the filter time. Next, in step S2, it is determined whether or not the input state of the duplex switch is inconsistent as a result of the filter processing of the shift switch input. If one of the double switches is ON and the other is OFF, it is determined that the shift switch has failed, and the shift switch input is recognized as OFF in step S3.

  Next, in step S4, it is determined whether the switch input state of either the upshift switch 1 or the upshift switch 3 is ON. If it is determined in step S4 that any of the upshift switches is ON, an upshift command is set in step S5. For example, if it is determined in step S2 that the upshift switch 1 is out of order and the shift switch input is recognized as OFF in step S3, the upshift command can be set only by the upshift switch 3 in step S5. As a result, it is possible to effectively operate an input device that is not malfunctioning.

  Thereafter, in step S6, it is determined whether or not the switch input state of either the shift down switch 2 or the shift down switch 4 is ON. If it is determined in step S6 that any one of the downshift switches is ON, a downshift command is set in step S7.

  Next, an example of the process of the shift execution determination unit 6 when a plurality of shift switch input devices are provided will be described with reference to the flowchart shown in FIG. Note that the processing in FIG. 3 is performed at predetermined control cycles.

  In step S1, the shift command input determination result by the shift switch input determination means 5 is read into the shift execution determination means 6. Next, in step S2, it is determined whether or not there are all shift command inputs. If it is determined in step S2 that all shift command inputs have not been received, it is determined in step S3 whether the shift execution command has not been set. If the shift execution command has not been set in step S3, the shift execution command is determined to be permitted in step S4.

  Next, in step S5, it is determined whether or not the shift execution command determination is permitted. If it is determined in step S5 that the shift execution command is permitted, it is determined in step S6 whether there is an upshift command input. If it is determined in step S6 that there is an upshift command input, an upshift execution command is set in step S7.

  Next, in step S8, it is determined whether or not there is a downshift command input. If it is determined in step S8 that there is a downshift command input, a downshift execution command is set in step S9. Subsequently, in step S10, it is determined whether or not a shift execution command is set. If it is set, the shift execution command determination is disabled in step S11.

  Thereafter, in step S12, it is determined whether both the upshift execution command and the downshift execution command are set. If both are set, the upshift execution command and the downshift execution command are issued in step S13. clear. For example, when the shift up switch at the hand is operated and the shift down switch is operated at the same time, the shift command input is not accepted. As a result, if the driver operates the shift-up switch of one shift command input device to shift up and then accidentally operates the shift-down switch of the other shift command input device, the wrong shift down is performed. You can prevent it from running.

  Next, it is determined whether or not a shift execution command is set in step S14. If it is set, a target position is generated so that the shift shaft rotates in a predetermined sequence in step S15, and a shift (not shown) is performed. Based on the error between the input signal of the shaft rotation sensor and the target position, a PWM command value is obtained, and a PWM signal having a duty and a rotation direction signal corresponding to the PWM command value are output to the H-bridge control circuit 7.

  Next, in step S16, it is confirmed whether or not the predetermined sequence is completed. If the predetermined sequence is completed, the upshift execution command and the downshift execution command are cleared in step S17. As a result, since the shift execution command is not set in step S3 in the next control cycle, the next shift command can be accepted if it is determined in step S2 that all shift command inputs have not been received.

It is a block diagram which shows the structure of the transmission control apparatus for vehicles by Embodiment 1 of this invention. It is a flowchart which shows an example of a process of the shift switch input determination means in this invention. It is a flowchart which shows an example of a process of the shift execution determination means in this invention.

Explanation of symbols

  1, 3 shift up switch, 2, 4 shift down switch, 5 shift switch input determining means, 6 shift execution determining means, 7 H bridge control circuit, 8 H bridge circuit, 9 battery, 10 motor.

Claims (4)

  In a vehicle transmission control apparatus in which a plurality of input devices for a driver to input a shift command are provided, and a clutch operation and a shift operation are performed based on the shift command to each of the input devices, the shift operation is completed. A vehicle transmission control device comprising means for receiving a shift command when any of the plurality of input devices is operated after detecting that all the plurality of input devices are not operated.   2. The vehicle transmission control apparatus according to claim 1, wherein said means does not accept a shift command even if any of said plurality of input devices is operated during a shift operation.   When the shift-up command and the shift-down command are simultaneously input to the plurality of input devices, the means does not accept the shift command until it is detected that all of the plurality of input devices are not operated thereafter. The vehicle transmission control device according to claim 1, wherein   2. The apparatus according to claim 1, wherein when one of the plurality of input devices fails, the shift command to the failed input device is invalidated and the shift command is received by the remaining input devices. Vehicle transmission control apparatus.

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