JPH0234515Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to an electric transmission, and in particular, when changing gears from a predetermined shift position of the transmission, for example, upshifting is performed by closing an upshift switch or a downshift switch. Alternatively, a manually operated clutch disengagement operation is required together with a downshift shift command operation, and at other shift positions, a shift operation can be performed only by an upshift or downshift shift command operation without requiring a manual clutch disengagement operation. This invention relates to an electric transmission device that has been made possible.

[Conventional technology]

In general, among transmissions that effectively take out the output of the prime mover in response to the vehicle's driving conditions, electric transmissions that electrically shift gears are operated by an electric motor mounted on a two-wheeled vehicle that has a manually operated clutch. , is constructed as shown in FIG. That is, when a manually operated clutch (not shown) is disengaged to shift the transmission, the clutch switch 14
is closed. Here, when the upshift switch 16 is closed by a shift command operation, the control section 20
The first AND gate 30 of the logic circuit 22 constituting the
When the clutch switch 14 and upshift switch 16 are closed, a high level signal is input to the
The first AND gate 30 outputs a high level signal to the control circuit 24. As a result, the control circuit 24 controls the operation of the electric motor 2 to rotate the shift cam 4 in a required direction and upshift the transmission.

Similarly, when the downshift switch 18 is closed by disengaging the clutch and operating a gear change command,
The second AND gate 32 outputs a high level signal, and the control circuit 24 controls the operation of the electric motor 2 to downshift the transmission.

[Problem that the invention attempts to solve]

However, in the case of two-wheeled vehicles, etc., where the engine speed can be finely adjusted, when the transmission is in a high speed position other than a certain gear position, the manual clutch disengagement operation can be performed simply by adjusting the engine speed. Shifting operations are possible without the need for For this reason,
As mentioned above, electric transmissions that require a manual clutch disengagement operation and an upshift or downshift command operation to close an upshift switch or downshift switch are complicated to operate, and improvements are needed. was desired.

[Purpose of invention]

Accordingly, this invention aims to provide an upshift or downshift by, for example, closing an upshift switch or a downshift switch when the transmission is shifted from a predetermined shift position in an electric transmission system for a two-wheeled vehicle having a manually operated clutch. To require disengagement of a manually operated clutch along with shift command operation, and to enable shift operation at other shift positions simply by operating an upshift or downshift shift command without requiring disengagement of the manually operated clutch. The object of the present invention is to realize an electric transmission that simplifies operation and improves operability.

[Means for solving problems]

In order to achieve this object, the present invention provides a shift position detection element for detecting the shift position of the transmission in an electric transmission in which a transmission is operated by an electric motor of a two-wheeled vehicle having a manually operated clutch; A clutch disengagement detection element that detects clutch disengagement of the manually operated clutch, a shift command detection element that detects a shift command to the transmission, and a control that controls the operation of the electric motor based on signals from each of the detection elements. When the shift position detection element detects the neutral position, which is the predetermined shift position, this control section moves the transmission to the predetermined shift position based on the detection signals of the clutch disengagement and the upshift, which is the shift command. The electric motor is actuated and controlled to perform an upshift shift operation from a neutral position, and the shift position detection element detects a predetermined shift position, which is a neutral position, a first gear position, or a second gear position. When the clutch is disengaged and the shift command is a downshift detection signal, the transmission is downshifted from one of the predetermined shift positions, which is a neutral position, a first gear position, and a second gear position. On the other hand, when the gear shift position detection element detects a gear shift position other than the neutral position, which is the predetermined gear shift position, the transmission is activated by the upshift detection signal, which is the gear shift command. The electric motor is operationally controlled to perform an upshift operation from another shift position, and the shift position detection element detects a shift position other than the neutral position, the first gear position, and the second gear position, which are the predetermined shift positions. When the shift command is a downshift detection signal, the electric motor is actuated to perform a downshift operation of the transmission from a shift position other than the neutral position, the first gear position, and the second gear position. It is characterized by

[Effect]

According to the configuration of this invention, in an electric transmission for a two-wheeled vehicle having a manually operated clutch, when the transmission is to be upshifted from a neutral position, which is a predetermined shift position, the upshift is performed by closing the upshift switch. When the transmission is upshifted by both the gearshift command operation and the clutch disengagement operation of the manually operated clutch, the transmission is also downshifted from a predetermined gearshift position, for example, the second gear position. In this case, the transmission is operated to perform a downshift speed change operation by both the downshift command operation by closing the downshift switch and the clutch disengagement operation of the manually operated clutch. In addition, when performing an upshift operation from a shift position other than the neutral position, which is the predetermined shift position, for example, the first gear position, the upshift switch can be closed without requiring a manually operated clutch to be disengaged. In addition to upshifting the transmission only by operating the upshift command, when downshifting the transmission from a predetermined shift position, for example, 3rd gear, a manually operated clutch must be disengaged. To perform a downshift speed change operation of a transmission only by operating a downshift speed change command by closing a downshift switch without any need.

〔Example〕

Next, an embodiment of this invention will be described in detail based on the drawings. FIG. 1 shows an embodiment of this invention. The electric transmission of this embodiment is mounted on a two-wheel vehicle having a manually operated clutch (not shown). The transmission (not shown) has, for example, various shift positions from a first speed position to a final speed position including a neutral position, and a shift cam 4 is rotated by an electric motor 2 to perform a speed change operation.

The shift cam 4 is provided with a shift position switch 6 which detects the shift position of the transmission and closes at a predetermined shift position and opens at other shift positions. This shift position switch 6 detects and closes the neutral position, first gear position, and second gear position as predetermined shift positions,
It consists of a neutral position switch 8, a first speed position switch 10, and a second speed position switch 12, which are opened at other speed change positions, that is, from the third speed position to the final speed position.
Further, a clutch switch 14 is provided, which detects a disengagement operation of a manually operated clutch (not shown) and closes when disengaged and opens when engaged, and closes when a shift command for upshifting and downshifting of the transmission is operated. upshift switch 16
and a downshift switch 18.

Signals from the neutral position switch 8, the first speed position switch 10, the second speed position switch 12, the clutch switch 14, the upshift switch 16, and the downshift switch 18, which are the shift position detection switches 6, are transmitted to the control unit 20. Enter.
The control unit 20 controls the operation of the electric motor 2 to rotate the shift cam 4 so as to shift the transmission, that is, to upshift or downshift.

The control section 20 includes a logic circuit 22 and a control circuit 24. Signals from the various switches 8 to 18 are input to the logic circuit 22. That is, a low level signal is input to the second OR gate 26 by the neutral position switch 8 when the switch 8 is closed, and a high level signal is input when the switch 8 is opened, and a high level signal is input by the clutch switch 14 when the switch 14 is closed. A high level signal is input, and when it is open, a low level signal is input. The second or gate 28 includes a neutral position switch 8, a first speed position switch 10, a second
When any speed position switch 12 is closed, a low level signal is input and all switches 8, 10, 12 are closed.
When the switch 14 is opened, a high level signal is input, and when the switch 14 is closed, a high level signal is input, and when the switch 14 is open, a low level signal is input.

Further, the output of the first AND gate 26 is input to the first AND gate 30, and a high level signal is input when the switch 16 is closed by the upshift switch 16, and a low level signal is input when the switch 16 is open. do. The output of the second OR gate 28 is input to the second AND gate 32, and the downshift switch 18
When it is closed, a high level signal is input, and when it is open, a low level signal is input.

The outputs of the first and second AND gates 30 and 32 are input to the control circuit 24. Control circuit 24
outputs an operation command signal to the electric motor 2 to rotate the shift cam 4 in a required direction and upshift or downshift the transmission in response to high-level signals input from the first and second AND gates 30 and 32, respectively; Operation command signals are not output when low level signals are input. Thereby, the operation of the electric motor 2 is controlled.

Next, the effect will be explained.

During upshifting of the transmission, when the transmission is in the neutral position, the neutral position switch 8 is closed, so a low level signal is input to the second OR gate 26. At this time, when the manually operated clutch is disengaged and the clutch switch 14 is closed, the output of the first OR gate 26 becomes high level. Therefore, when the upshift switch 16 is closed by a shift command operation to upshift the transmission, the output of the first AND gate 30 becomes high level. The control circuit 24 controls the operation of the electric motor 2 by outputting an operation command signal to rotate the shift cam 4 in a desired direction and upshift the transmission in response to a high-level input signal.

Therefore, when the transmission is in the neutral position, no operation command signal is output and the transmission cannot be upshifted unless the manually operated clutch is disengaged and the upshift switch 16 is closed.

At a shift position other than the neutral position, for example, the first speed position, the neutral position switch 8 is open, so a high level signal is input to the first OR gate 26. Therefore, the output of the first OR gate 26 becomes high level without disengaging the manually operated clutch and closing the clutch switch 14. Therefore, when the upshift switch 16 is closed by a shift command operation to upshift the transmission from the first speed position, the first AND gate 30
The output becomes high level, and the control circuit 24 outputs an operation command signal to upshift the transmission from the first speed position in response to the high level signal input, thereby controlling the operation of the electric motor 2.

In this manner, when upshifting the transmission from the neutral position, it is necessary to operate the upshift shift command by closing the upshift switch 16 and to disengage the manually operated clutch, which prevents sudden starts due to erroneous operation. Eliminates danger. Furthermore, when upshifting at a shift position other than the neutral position, such as the first gear position, the upshift switch 16 can be operated without the need for disengaging the manually operated clutch.
This simplifies the operation by making it possible to change gears by simply issuing an upshift command to change gears by closing the switch.

When downshifting the transmission, when the transmission is in any of the neutral position, first gear position, and second gear position, the neutral position switch 8, the first gear position switch 10, and the second gear position switch are activated. When one of the 12 switches closes, a low level signal is input to the second OR gate 28. At this time, when the manually operated clutch is disengaged and the clutch switch 14 is closed, the output of the second OR gate 28 becomes high level. Therefore, when the downshift switch 18 is closed by a shift command operation to downshift the transmission from, for example, the second speed position, the output of the second AND gate 32 becomes a high level, and the control circuit 24 controls the shift cam 4. An operation command signal is output to control the operation of the electric motor 2 in order to rotate it in a required direction and downshift the transmission from the second speed position.

When the shift position is other than the above, for example from the 3rd gear position, the neutral position switch 8, the 1st gear position switch 10, and the 2nd gear position switch 12 are all open, so the second OR gate 28 is is receiving a high level signal. Therefore, the manually operated clutch is disengaged and the clutch switch 1 is turned on.
4, the output of the second OR gate 28 goes to a high level. Therefore, when the downshift switch 18 is closed by a shift command operation to downshift the transmission from the third speed position, the output of the second AND gate 32 becomes a high level, and the control circuit 24 receives a high level signal. In response to the input, an operation command signal is output to downshift the transmission from the third speed position to control the operation of the electric motor 2.

In this way, when downshifting the transmission from the neutral position, first gear position, or second gear position, the downshift command is operated by closing the downshift switch 18, and the manually operated clutch is operated. This eliminates the danger of erroneous operation by requiring a clutch disengagement operation, and when downshifting from another gear position, for example, 3rd gear, the downshift switch 18 can be activated without requiring a manual clutch disengagement operation. Shifting can be performed by simply issuing a downshift command when the gear is closed, simplifying the operation.

[Effect of idea]

As described above, according to this invention, in an electric transmission for a two-wheeled vehicle having a manually operated clutch, the transmission can be upshifted from a neutral position, which is a predetermined shift operation position, to an upshift operation, or the transmission can be moved to a predetermined shift operation position. For example, when downshifting from the second gear position, the upshift or downshift switch must be closed to command an upshift or downshift, and a manually operated clutch must be disengaged. This ensures safety by eliminating the danger of sudden starts due to incorrect operation. In addition, the transmission may be upshifted from a gear position other than the neutral position, such as the first gear position, or the transmission may be moved to a predetermined gear position, such as the third gear position.
When performing a downshift from a gear position, it is possible to perform a gear change operation simply by operating the upshift or downshift command by closing the upshift switch or downshift, without the need to disengage the manually operated clutch. This makes it possible to simplify the operation and improve operability.

[Brief explanation of drawings]

FIG. 1 is a circuit explanatory diagram showing an embodiment of this invention. FIG. 2 is a circuit diagram of a conventional device. In the figure, 2 is an electric motor, 6 is a shift position detection switch, 8 is a neutral position switch, 10 is a 1st speed position switch, 12 is a 2nd speed position switch, 14 is a clutch switch of a manually operated clutch, 16
18 is an upshift switch, 18 is a downshift switch, and 20 is a control section.

Claims (1)

[Scope of utility model registration request] In an electric transmission device in which a transmission is operated by an electric motor of a two-wheeled vehicle having a manually operated clutch, a shift position detection element detects a shift position of the transmission, and detects disengagement of the manually operated clutch. a clutch disengagement detection element that detects a clutch disengagement; a shift command detection element that detects a shift command to the transmission; and a control section that controls the operation of the electric motor based on signals from each of the detection elements; When the position detection element detects the neutral position, which is the predetermined shift position, the above-mentioned step is performed to cause the transmission to perform an upshift operation from the neutral position, which is the predetermined shift position, in response to the detection signal of the clutch disengagement and the upshift, which is the shift command. When the electric motor is operationally controlled and the shift position detection element detects any one of the predetermined shift positions, which is the neutral position, the first gear position, and the second gear position, the clutch is disengaged and the gear shift command is down. Based on the shift detection signal, the electric motor is actuated and controlled to downshift the transmission from any one of the predetermined shift positions, such as a neutral position, a first gear position, and a second gear position; When the shift position detection element detects a shift position other than the neutral position, which is the predetermined shift position, the transmission is caused to perform an upshift shift operation from the other shift position in response to an upshift detection signal, which is the shift command. When the electric motor is operationally controlled and the shift position detection element detects a shift position other than the predetermined shift positions, which are the neutral position, the first gear position, and the second gear position, the downshift, which is the gear change command, is detected. An electric transmission device characterized in that the electric motor is controlled to perform a downshift operation of the transmission from a shift position other than the neutral position, first speed position, and second speed position based on a detection signal.