JPH0769103A - Semi-automatic transmission - Google Patents

Abstract

(57) [Summary] [Purpose] To enable the shift gear to be set to neutral even while driving. A control circuit for outputting control information by taking in operation information of a clutch pedal, an accelerator pedal, and a shift lever and rotation information of an engine and / or an axle, an engine rotation speed control device, a clutch control device, And a shift gear selecting device, and sends control information for setting neutral to the clutch control device and the shift gear selecting device when the control circuit receives operation information of the shift lever accompanied by operation of the clutch pedal during traveling. [Effect] The coasting operation can be performed, the degree of freedom of the driving operation can be improved, and the fuel economy can be made economical.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is used in automobiles. INDUSTRIAL APPLICABILITY The present invention is used for automation of gear selection and clutch operation of an automobile. The present invention relates to an improvement of a semi-automatic transmission in which a clutch pedal is operated at the time of starting, but selection control of a transmission gear during traveling is automatically executed by operating a shift lever without operating the clutch pedal.

[0002]

2. Description of the Related Art In a semi-automatic transmission, it is necessary to operate a clutch pedal at the time of starting and stopping, but it is possible to perform selective control of a speed change gear without operating the clutch pedal at the time of traveling. It is composed. That is, when trying to start the car,
The driver can start the vehicle by stepping on the clutch pedal, operating the shift lever to instruct forward (or backward), and releasing the clutch pedal while stepping on the accelerator pedal.

While the vehicle is running, if a shift lever is instructed to shift up or down without operating the clutch pedal, a series of operations for controlling the clutch and selecting and setting the shift gear are automatically executed to shift the gear. Up or shift down is executed. When stopping the vehicle, the brake pedal is pressed with the right foot and the clutch pedal is pressed with the left foot.

The shift lever of this device generally indicates upshifting or downshifting and can be moved only in the front-rear direction. After starting with the low gear, if you instruct to shift up by turning the shift lever one turn forward,
The second gear is selected and automatically set. When the shift lever is rotated forward two times in the low gear to instruct upshifting, the third gear is selected and automatically set for control. The same is true for downshifts,
If the shift lever is moved backward one time, it is downshifted by one gear from the current state, and if it is moved twice, it is downshifted by two gears.

[0005]

In such a conventional device, the transmission gear can be set to neutral when the vehicle is stopped, but the transmission gear cannot be set to neutral by a driving operation during traveling. For example, even if the shift lever is operated twice or several times in the downshift direction while traveling with the second gear, the shift gear becomes the low gear but not the neutral. If the clutch pedal is depressed just before the car stops and the shift lever is operated after the car has stopped, the shift gear becomes neutral for the first time.

In driving operation, it is sometimes desired to set the transmission gear to neutral even while traveling. For example, when traveling on an extremely congested road at an extremely low speed, it may be desirable to temporarily set the transmission gear to neutral in order to adjust the distance from the preceding vehicle. Further, it may be desired to drive the vehicle by coasting by shifting the transmission gear to neutral while traveling on a long and gentle downhill to make the engine rotation idling and reduce fuel consumption.

The present invention has been made in response to such a user's demand, and provides a semi-automatic transmission in which the shift gear can be set to neutral by an operation even while traveling. With the goal.

[0008]

SUMMARY OF THE INVENTION According to the present invention, control information is outputted by taking in clutch clutch operation information, accelerator pedal operation information, speed change lever operation information, and engine and / or axle rotation information. A control circuit for controlling the rotation speed of the engine controlled by the control information, a clutch control device controlled by the control information, and a shift gear selection device controlled by the control information, The control circuit sends the control information to the clutch control device and the transmission gear selection device according to the operation information of the shift lever that involves the operation of the clutch pedal at the time of starting, and the means without operating the clutch pedal at the time of traveling. Sending control information to the clutch control device and the transmission gear selection device according to the operation information of the transmission lever In the semi-automatic transmission, the control circuit sends control information for setting the neutral state to the clutch control device and the shift gear selection device according to operation information of the shift lever accompanied by operation of a clutch pedal during traveling. It is characterized in that it is provided with a means for doing.

The control circuit is provided with a means for generating display information of the selected gear, an indicator is provided at the driver's seat for displaying information according to the display information, and after the speed change gear is set to neutral during traveling, It is desirable that the device includes means for sending control information to the clutch control device and the transmission gear selection device according to the operation information of the shift lever without operating the clutch pedal.

[0010]

When the clutch pedal is depressed and the shift lever is operated in the downshift direction during traveling, the shift gear can be made neutral. Once the neutral is set, if the shift lever is operated in the up-shifting direction without depressing the clutch pedal, the shift gear is selectively set according to the vehicle speed at that time.

During low-speed traveling, it is possible to perform a driving operation such that the transmission gear is once set to neutral, the speed is adjusted, and then the transmission gear is selected again to continue traveling.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a diagram showing the configuration of an embodiment of the present invention.

In the embodiment of the present invention, the operation information of the clutch pedal 1, the operation information of the accelerator pedal 2, and the shift lever 3 are provided.
The operation information and the rotation information of the engine 4 and / or the axle from the rotation sensor 5 to output control information by calculation, and the rotation speed control device 7 of the engine 4 controlled by the control information. The control circuit 6 includes a clutch control device 8 controlled by the control information and a shift gear selection device 9 controlled by the control information.
Is a means for sending control information to the clutch control device 8 and the shift gear selection device 9 according to the operation information of the shift lever 3 accompanying the operation of the clutch pedal 1 at the time of starting, and a shift without operating the clutch pedal 1 during traveling. A means for sending control information to the clutch control device 8 and the transmission gear selection device 9 in accordance with the operation information of the lever 3 is further provided. Means for sending control information for setting the neutral state to the clutch control device 8 and the transmission gear selection device 9 by means of operation information of the lever 3 and means for generating display information for the selected gear are provided, and according to this display information. An indicator 10 for displaying is provided in the driver's seat, and further, the control circuit 6 sets the shift gear to neutral when traveling. It was later provided with means for sending control information to the clutch control unit 8 and transmission gear selection device 9 according to the operation information of the shift lever 3 without the clutch pedal 1.

Next, the operation of the embodiment of the present invention thus constructed will be described.

When the clutch pedal 1 is operated at the time of starting, and the gear shift lever 3 is accordingly set to the forward first speed, the control circuit 6 causes the clutch sensor 11 to operate the clutch pedal 1 and the gear shift lever. Information is sent. The control circuit 6 sends control information to the clutch control device 8 and the transmission gear selection device 9 based on this operation information. The clutch control device 8 performs clutch control at the time of shifting according to this control information, and the shift gear selection device 9 selects a shift gear (first forward speed) according to this control information and instructs the shift state (first forward speed). ) Is set.

Further, when the gear shift lever 3 is operated without operating the clutch pedal 1 during traveling, and, for example, a shift-up instruction is given, the operation information is sent to the control circuit 6.
The control circuit 6 sends control information to the clutch control device 8 and the transmission gear selection device 9 according to the operation information. The clutch control device 8 disengages the clutch according to the control information, and the shift gear selection device 9 shifts up one gear according to the control information and sets the instructed shift state. The shift-down operation during traveling is similarly performed without operating the clutch pedal 1.

Further, as a feature of the present invention, a case where the operation of the shift lever 3 is downshifted with the operation of the clutch pedal 1 during traveling will be described. When the clutch pedal 1 is stepped on and the shift down operation is performed, the transmission gear of the device of the present invention is set to the neutral position even during traveling. That is, the control circuit 6 receives the operation information and sends the control information to the clutch control device 8 and the speed gear selection device 9. The clutch control device 8 disengages the clutch according to this control information, and the transmission gear selection device 9 moves the transmission gear to set it to the neutral position.

After the transmission gear is set to neutral during traveling in this way, the control circuit 6 controls the clutch control device 8 and the transmission gear according to the operation information of the transmission lever 3 without operating the clutch pedal 1. Selector 9
The control information is sent to the shift lever 3, and the shift gear is selectively set according to the number of shift levers 3 in the up-shifting direction. As a result, when the speed change gear is once set to the neutral and the speed is adjusted during low speed travel, the speed change gear, for example, the second forward speed, is selected again and the travel can be continued.

FIG. 2 is a flow chart showing the flow of the control operation of the control circuit by the shift operation in the embodiment of the present invention.

The control circuit 6 takes in the detection output from the clutch sensor 11 and judges whether or not the clutch is operated. If the clutch is not operated, it is determined whether or not the shift lever 3 has been operated. When the shift lever 3 is operated in the up-shifting direction or the down-shifting direction, the clutch control device 8 and the shift gear selecting device 9 are operated. Control information is sent to each of them to perform up-shifting or down-shifting operation. If the shift lever 3 is not operated, the control is returned to the clutch operation determination operation.

When the clutch is operated, it is similarly determined whether or not the shift lever 3 is operated, and then the shift direction is determined. When the shift direction is shift down, control information can be sent to each of the clutch control device 8 and the shift gear selection device 9 in accordance with the operation to perform shift down, and the neutral state can be achieved. In the case of upshifting, control information is sent to each of the clutch control device 8 and the transmission gear selection device 9, and upshifting is performed according to the upshift number.

The position of the shift gear due to such an up-shift or a down-shift is displayed on the display 10 by the display information from the control circuit 6. 3 (a) to 3 (d) show examples of the display, and FIG. 3 (a) shows that the gear position before the gear shifting operation is at N (neutral), and further downshifting to two gears is possible. Two ∇ marks that indicate that there is are displayed, and three Δ marks that indicate that upshifting can be performed up to 3 steps are displayed. FIG. 11B shows a display example when the gear position is the first speed, and similarly, the number of stages that can be downshifted and upshifted is displayed by ∇ and Δ marks. FIG. 6C shows a display example when the transmission gear is at the fifth speed position, and FIG.

[0023]

As described above, according to the present invention, when the vehicle is running, when the clutch pedal is depressed, the shift lever is operated in the downshift direction to select the neutral position. You can Further, even if the neutral position is once set, the shift gear position can be selectively set according to the vehicle speed at that time by operating the shift lever in the upshift direction without stepping on the clutch pedal. As described above, in the device of the present invention, since the transmission can be set to the neutral position and the speed can be adjusted during traveling, it is possible to perform a driving operation with a high degree of freedom during low-speed traveling on a congested road. By setting the shift gear to neutral on the downhill, there is an effect that the engine rotation can be idling and the coasting operation can be performed to perform the driving operation to make the fuel economy economical.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of control operation of a control circuit by a gear shift operation in the embodiment of the present invention.

FIG. 3A to FIG. 3D are views showing display examples of shift gear positions in the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 clutch pedal 2 accelerator pedal 3 speed change lever 4 engine 5 rotation sensor 6 control circuit 7 rotation speed control device 8 clutch control device 9 speed change gear selection device 10 indicator 11 clutch sensor 12 accelerator sensor

Claims (3)

[Claims] 1. A control circuit for outputting control information by taking in clutch clutch operation information, accelerator pedal operation information, gear shift lever operation information, engine and / or axle rotation information, and providing the control information. The engine rotation speed control device controlled by information, the clutch control device controlled by the control information, and the speed change gear selection device controlled by the control information are provided, and the control circuit includes a clutch pedal when starting. Means for sending control information to the clutch control device and the transmission gear selection device according to the operation information of the speed change lever, and the operation information of the speed change lever without operation of the clutch pedal during traveling. Semi-automatic with a clutch control device and means for sending control information to the transmission gear selection device In a speed machine, the control circuit includes means for sending control information for setting a neutral state to the clutch control device and the transmission gear selection device according to operation information of the transmission lever that accompanies operation of a clutch pedal during traveling. Characteristic semi-automatic transmission. 2. The semi-automatic transmission according to claim 1, wherein the control circuit includes means for generating display information of a selected gear, and an indicator for displaying information according to the display information is provided in a driver's seat. 3. The control circuit controls the clutch control device and the transmission gear selection device according to operation information of the transmission lever without operating the clutch pedal after the transmission gear is set to neutral during traveling. The semi-automatic transmission according to claim 1, further comprising means for transmitting information.