JP2852486B2 - Semi-automatic transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is applied to automobiles. INDUSTRIAL APPLICABILITY The present invention is used to select a transmission gear of an automobile and to automate clutch operation. The present invention is based on the condition that the driver operates the clutch pedal at the time of start. However, the selection control of the transmission gear during traveling is performed automatically without the driver operating the clutch pedal. Regarding improvement.

[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 selection control of a transmission gear without driving the clutch pedal during traveling. It is composed. That is, when trying to start a car,
The driver can depress the clutch pedal, operate the shift lever to instruct forward (or reverse), and start the vehicle by releasing the clutch pedal while depressing the accelerator pedal.

[0003] During traveling, when a shift up or down is instructed by a shift lever without operating a clutch pedal, a series of operations of clutch control and selection of a shift gear are automatically executed, and a shift operation is performed. Up or downshift is performed. When stopping the car, the brake pedal is depressed with the right foot and the clutch pedal is depressed with the left foot.

[0004] The shift lever of this device generally instructs an upshift or a downshift, and moves only in the front-back direction. After starting in low gear, if the shift lever is turned one turn in the forward direction to instruct an upshift,
The second gear is selected and automatically controlled and set. When the shift lever is turned twice forward in the low gear to instruct an upshift, the third gear is selected and the control is automatically set. The same applies to downshifting,
When the shift lever is moved backward once, the gear is shifted down one step from the current state, and when moved twice, the gear is shifted down two steps from the current state.

[0005]

This device is a device for automatically selecting a gear during traveling. This device has been widely used in large automobiles and has been well received. However, this device detects the depression of a clutch pedal. If the pedal switch causes poor contact, the vehicle cannot start. This can be recovered by repairing the clutch pedal switch but causes a road failure. Therefore, there is a need for a measure that can temporarily move the vehicle even if a failure occurs in the clutch pedal switch.

SUMMARY OF THE INVENTION The present invention has been made in view of such a background, and an object of the present invention is to provide an apparatus capable of preventing a vehicle from being unable to start due to a defective clutch pedal switch. It is an object of the present invention to provide a measure that can be easily improved without essentially changing the design in a completed state where a large number of products have already been manufactured and operated.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an apparatus for automatically executing selection control of a transmission gear during traveling without operating a clutch pedal, and more particularly to an apparatus for controlling operation of a clutch pedal. A clutch control device which receives control information of a pedal, operation information of a shift lever, and rotation information of an engine and a transmission and outputs control information by calculation, and a clutch control device controlled by the control information; and The control circuit is configured to execute a start control by designating, as a start gear, a specified gear by a shift lever performed in a depressed state of a clutch pedal when the vehicle is stopped, and starting the vehicle. A program control means for executing automatic shifting according to operation information of the shift lever without sometimes operating a clutch pedal. In an automatic transmission, an emergency operation button operated by a driver is provided, and the control circuit sets an emergency mode when the emergency operation button is pressed. In this emergency mode, the engine is rotated based on the rotation information. When the rotation of the transmission is stopped, there is provided a means for executing start control ignoring operation information of the clutch pedal.

Means for displaying that the driver is in the emergency mode when in the emergency mode, and means for automatically canceling when no operation is performed for a predetermined time after the emergency mode is set. It is desirable to have,
When the emergency mode is set, the control circuit can limit selectable gears to one forward speed and one reverse speed.

[0009]

Normally, when the vehicle is stopped, a designated gear by the shift lever depressed with the clutch pedal depressed is designated as a start gear and start control is performed. When the vehicle is running, information on the shift lever is provided without operation of the clutch pedal. The automatic shifting is performed according to the following. When a contact failure occurs in the clutch pedal switch and the driver notices this and operates the emergency operation button, the control circuit sets the emergency mode. The rotation information of the engine and the transmission is taken in, and if the engine is rotating and the rotation of the transmission is stopped, the start control is executed ignoring the operation information of the clutch pedal.

Thus, even if the clutch pedal switch breaks down and the vehicle cannot start, the vehicle can be temporarily moved, and it is possible to avoid a situation in which the vehicle cannot move on the road and a traffic jam occurs. it can.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a 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, the shift lever 3
And a control circuit 6 which outputs control information by calculation from a rotation sensor 51 of the engine 4 and transmission rotation sensors 52 and 53, and a rotation speed control device 7 and a clutch control device controlled by the control information. 8 and a transmission gear selection device 9 controlled by the control information.

The control circuit 6 includes means for transmitting control information to the clutch control device 8 and the transmission gear selecting device 9 in accordance with operation information of the shift lever 3 accompanying operation of the clutch pedal 1 at the time of starting. Means for transmitting control information to the clutch control device 8 and the transmission gear selecting device 9 in accordance with the operation information of the shift lever 3 without operation, and designation by the shift lever 3 performed with the clutch pedal 1 depressed when the vehicle stops. There are provided program control means including means for designating a gear as a start gear and executing start control, and means for generating display information of the selected gear.

Further, the driver is provided with a display 10 for performing a display according to the display information and an emergency operation button 13 operated by the driver. When the emergency mode is set, the operation information of the clutch pedal 1 is ignored when the engine 4 rotates and the input shaft rotation of the transmission is stopped based on the rotation information of the rotation sensors 51 to 53 in this emergency mode. Emergency mode display means 14 for displaying that the driver's seat is in the emergency mode when the emergency mode is set, and no operation for a predetermined time after the emergency mode is set. Means for automatically canceling when not performed. When this emergency mode is set, the control circuit 6 shifts the selectable gear forward 1
Limited to one step and one step.

Next, the operation of the embodiment of the present invention configured as described above will be described.

When the clutch pedal 1 is operated at the time of starting and the shift lever 3 is set to, for example, the first forward speed, the control circuit 6 informs the control circuit 6 of the operation information of the clutch pedal 1 from the clutch sensor 11 and the operation of the shift lever. Information is sent. The control circuit 6 sends control information to the clutch control device 8 and the transmission gear selecting device 9 based on the operation information. The clutch control device 8 performs clutch control at the time of shifting according to the control information, and the transmission gear selecting device 9 selects a transmission gear (first forward speed) according to the control information, and indicates a designated shift state (first forward speed). ) Is set.

When the shift lever 3 is operated without operating the clutch pedal 1 during traveling, for example, when an upshift is instructed, the operation information is sent to the control circuit 6, and
The control circuit 6 sends control information to the clutch control device 8 and the transmission gear selection device 9 based on the operation information. The clutch control device 8 disengages the clutch according to the control information, and the transmission gear selection device 9 shifts up one stage according to the control information to set the instructed shift state. The downshift operation during traveling is performed similarly without operating the clutch pedal 1.

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 determines whether or not a clutch operation has been performed. If the clutch operation has not been performed, it is determined whether or not the shift lever 3 has been operated. If the shift lever 3 has been operated in the upshift direction or the downshift direction, the clutch control device 8 and the shift gear selection device 9 have been operated. Control information is sent to each of them to perform a shift-up or shift-down operation. If the shift lever 3 has not been operated, the control returns to the clutch operation determination operation.

The position of the transmission gear due to such upshifting or downshifting is displayed on the display 10 by display information from the control circuit 6. 3 (a) to 3 (d) show display examples, and FIG. 3 (a) shows that the gear position before the gear shifting operation is at N (neutral). Two triangles are displayed to indicate that there is, and three triangles are displayed to indicate that upshifting is possible up to three steps. FIG. 9B shows an example of display in the case where the gear position is the first speed, and similarly, the number of gears that can be shifted down and up is displayed by ▽ and △. FIG. 3C shows a display example when the speed change gear is at the fifth speed position, and FIG. 3B shows a display example when the gear is moved backward.

Here, the operation in the emergency mode, which is a feature of the present invention, will be described. FIG. 4 is a flowchart showing the flow of the start control operation in the emergency mode in the embodiment of the present invention, and FIG. 5 is a flowchart showing the flow of the release operation of the emergency mode in the embodiment of the present invention.

When the emergency operation button 13 is operated, the control circuit 6 receives the operation input and sets the emergency mode. The emergency mode display means 14 arranged on the outer periphery of the emergency operation button 13 is turned on to set the emergency mode. Displays that the setting has been made. Next, the rotation speed of the engine and the rotation speed of the transmission input shaft are fetched from the rotation sensors 51 and 52, and it is determined whether or not the engine is rotating and the transmission input shaft is stopped.

If the engine is not rotating and the transmission input shaft is in a stopped state, or if the engine is rotating but the transmission input shaft is in a running state, the rotation speed is taken in from the rotation sensors 51 to 53. And the same operation is repeated. If the engine is rotating and the transmission input shaft is in a stopped state, shift position information is fetched from the shift lever 3 and it is determined whether the shift lever 3 is at the start position. If the shift lever 3 is not in the starting position, the shift lever 3
The process returns to the position information fetching process, and the start control is executed if the vehicle is at the start position.

On the other hand, as shown in FIG. 5, the control circuit 6 starts the timer simultaneously with the setting of the emergency mode, and determines whether or not the start operation has been performed. If the start operation has been performed, the timer is reset, the control is returned to the start of the timer, and the same operation is performed again. If the start operation has been performed, it is determined whether or not a predetermined time has elapsed. If the predetermined time has elapsed, the emergency mode is released. If the predetermined time has not yet elapsed, the emergency mode is maintained until the time is up. Emergency operation button 13
Is operated again, it is assumed that the driver has commanded the release of the emergency mode, and an interrupt process is performed to release the emergency mode.

[0025]

As described above, according to the present invention, when the clutch pedal switch fails, the selection control of the transmission gear during traveling can be automatically executed without operating the clutch pedal. In addition, there is an effect that a state in which the vehicle can be temporarily moved so as not to be unable to start can be set, and a stop on the road can be avoided.

Further, the arrangement of the present invention can be easily modified without substantial changes to the finished design already manufactured and operated.

[Brief description of the drawings]

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

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

FIGS. 3A to 3D are diagrams showing display examples of transmission gear positions in the embodiment of the present invention.

FIG. 4 is a flowchart showing a flow of a start control operation in an emergency mode in the embodiment of the present invention.

FIG. 5 is a flowchart showing a flow of an emergency mode release operation in the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 clutch pedal 2 accelerator pedal 3 shift lever 4 engine 6 control circuit 7 rotation speed control device 8 clutch control device 9 shift gear selection device 10 display 11 clutch sensor 12 accelerator sensor 13 emergency operation button 14 emergency mode display means 51 engine rotation Rotation sensor to detect 52 Rotation sensor to detect rotation of transmission input shaft 53 Rotation sensor to detect rotation of transmission output shaft

Claims (2)

(57) [Claims] 1. A control circuit for acquiring control information of a clutch pedal, operation information of an accelerator pedal, operation information of a shift lever, and rotation information of an engine and a transmission, and outputting control information by calculation, the control circuit comprising: A clutch control device controlled by information; and a transmission gear selection device controlled by the control information, wherein the control circuit starts a designated gear by a transmission lever performed in a depressed state of a clutch pedal when the vehicle stops. A semi-automatic transmission having program control means for executing start control by designating the gear as a gear and executing automatic shifting in accordance with operation information of the shift lever without operating a clutch pedal when the vehicle is running; An emergency operation button is provided, and the control circuit activates an emergency mode when the emergency operation button is pressed. In this emergency mode, means is provided for executing start control ignoring clutch pedal operation information when the engine is rotating and the transmission is stopped from rotation information based on the rotation information. Semi-automatic transmission. 2. A means for displaying in the driver's seat that the vehicle is in the emergency mode when in the emergency mode, and means for automatically canceling when no operation is performed for a predetermined time after the emergency mode is set. 2. The semi-automatic transmission according to claim 1, wherein the control circuit limits the selectable gear to one forward speed and one reverse speed when the emergency mode is set.