JPS58202176A - Regulator for height of motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention provides a vehicle height adjustment device for a motorcycle, and more specifically, when a switch for operating such a device is turned on, even if the switch is subsequently released, the adjustment ends. This invention relates to a vehicle height adjustment device for a motorcycle that operates until the adjustment is completed and then stops when the adjustment is completed.

A vehicle height adjustment device has been proposed that adjusts the vehicle height by controlling the air pressure of a rear cushion unit used as a suspension device of a motorcycle.

First, the basic structure of this type of vehicle height adjustment device for a motorcycle will be explained, and its problems will also be mentioned.

FIG. 1 is a configuration diagram illustrating the basic configuration of a vehicle height aU device for a motorcycle.

When the pressure switch 1 is closed, the air dehumidified by the dryer 2 is compressed by the compressor unit 3, the pressure is regulated by the accumulator 4, and then sent to the solenoid control valve 5. The solenoid control valve 5 consists of a down valve 51 and an amplifier valve 52, and is controlled by solenoids S1 and S2 based on control signals from the control unit 9, and connects compressed air to the rear cushion unit 6 which also uses an air spring. are doing. When the auto leveling switch 7 is closed, the rear cooker 3
The vehicle height is detected by the leveling sensor 8 installed in the vehicle unit 6, and a detection signal is sent to the control unit 9. When the vehicle height is high, the solenoid S is activated and the valve 51 is opened. The air pressure is exhausted to lower the vehicle height, and when the vehicle height is low, the valve 52 is operated to send the air pressure to the rear cushion unit 6 to raise the vehicle height.

Next, the configuration and operation of a control circuit that controls such a device will be explained.

FIG. 2 is a circuit diagram showing an example of a control circuit used in the vehicle height adjustment device.

A photocoupler PC installed in the leveling sensor 8,
, PO2 transmit the light signals emitted by the light emitting diodes LED+ and -LED2 to the phototransistors P'rl and P'rl, respectively.
PT2 receives the light and converts it into a current signal. Light emitting diode LED1. LED2 and phototransistor p'r,,P
A shielding plate 81 that moves up and down according to the vehicle height is provided between the vehicle and T2.

The output of the photocoupler PC1 is branched; one is connected to the solenoid S1 of the down valve 51 via transistors T, , 'r3, and the other is connected to an AND gate 92 via an inverter 91.

The output of the photocoupler PCI is input to the AND gate 92, and the output of the AND gate 92 is the transistor 'r2. 'r
, to the solenoid S2 of the amplifier valve 52.

3 to 6 are diagrams for explaining the operation of the vehicle height adjustment device.

When the pressure switch 1 is closed, the air pressure accumulated in the accumulator 4 is sent to the solenoid control valve 5.

When the vehicle height is high, as shown in FIG. 3, the shielding plate 81 of the leveling sensor 8 is a photocoupler PC.

Since neither PO2 is shielded, when the auto-leveling switch 7 is closed, the photocoupler PC,...
The outputs of tPC2 both become “H” level,
Although the solenoid S1 is energized, the other branched output of the photocoupler PC2 is set to “L” via the inverter 91.
Since it is input to the level Antogame 192, the Antogame
The output of 192 becomes "L" level, and solenoid S2 is not energized.

Therefore, only the valve 51 is opened, the air pressure in the rear cushion unit 6 is exhausted, and the vehicle height is lowered.

As the vehicle height becomes lower, as shown in Figure 4, the photocoupler PC
2 is shielded by the shielding plate 81, the output of the photocoupler PC1 is at "H" level, so the solenoid S
1 is energized, but the other branched output is connected to inverter 9.
1 to the AND gate 92 at the "L" level. At this time, since the photocoupler PC2 is shielded, the level is "L", and the output of the AND gate 92 is "L".
level, solenoid S2 is not energized. Therefore, a down operation is performed and the vehicle height is further lowered.

As a result, when the vehicle height is appropriate, the photocoupler PC is also shielded and the output becomes "L" level, as shown in Figure 5.
The solenoid S1 is not energized, and the other branched output becomes the "H3 level" via the inverter 91. However, since the output of the photocoupler PC2 is "L" level, the output of the AND gate 92 is "L" level solenoid. S2 is not energized.Therefore, the valve 51°5 shown in FIG.
2 are both closed, the rear cushion unit 6 stops at that height, and the vehicle height adjustment is completed.

If the vehicle height is low, use the photocoupler P as shown in Figure 6.
Since only C1 is shielded, the photocoupler PC
The output of photocoupler PC1 becomes "L" level, the solenoid S1 is not energized, and the output of photocoupler PC2 becomes "H" level. The branched output of photocoupler PC1 becomes "H" level at inverter 91.
Since the level is set, the output of the AND gate 92 is ``H''.
The solenoid S2 is energized, the valve 52 is opened, air pressure is sent to the rear cushion unit 6, the vehicle height is raised, and the vehicle stops in the state shown in FIG. 5, completing the adjustment.

However, with this type of vehicle height adjustment device, the auto leveling switch 7 must be held down until the adjustment is completed, which is cumbersome to operate and poses a problem in terms of safe driving. There is a problem in that when the leveling switch 7 is opened, the vehicle height is adjusted to an incorrect level.

Therefore, an object of the present invention is to provide a system in which when an auto-leveling switch is closed, even if the switch is subsequently opened, the control circuit operates until the vehicle height adjustment is completed, and the device is stopped at the time the vehicle height adjustment is completed. An object of the present invention is to provide a vehicle height adjustment device for a motorcycle that allows the user to adjust the vehicle height of a motorcycle.

To achieve the above object, the vehicle height adjustment device for a motorcycle according to the present invention connects air pressure from a pressure source to a rear suspension unit when the vehicle height detected by the vehicle height detector is lower than the appropriate vehicle height. In a vehicle height adjustment device for a motorcycle, the vehicle height is adjusted to the appropriate vehicle height by exhausting the air pressure in the vehicle height unit and lowering the vehicle height when the vehicle height is higher than the appropriate vehicle height. A detecting section for detecting that the vehicle height is the appropriate vehicle height, and a flip-flop that is set when the vehicle height adjustment switch is turned on and reset by the appropriate vehicle height detection signal from the detecting section, and the vehicle height adjusting switch Even if the vehicle height adjustment switch is released after the vehicle height adjustment switch is turned on, it will continue to operate until the vehicle height adjustment is completed and will stop when the adjustment is completed.

According to the above structure, the object of the present invention can be completely achieved.

Hereinafter, the present invention will be explained in more detail with reference to the drawings and the like.

FIG. 7 is a circuit diagram showing an embodiment of the vehicle height adjustment device for a motorcycle according to the present invention. Note that parts having the same functions as those in the basic configuration described above are given the same reference numerals.

The signal line from the auto-leveling switch 7 is connected to the Nant gate Q2 via the inverter 93,
KRS7! J, y 7" 70, y 7'
94 (D*y) 611' Connected to child S. The output of the RS frisive flop 94 is connected to the base of the transistor T5.
The collector is a photocoupler PC2 light emitting diode LED.
2 output, and its emitter is grounded.

The output of photocoupler PC is branched and connected to one input terminal of AND gate Q1 via inverter 95, and the output of photocoupler PC2 is branched and connected to the other input terminal of AND gate Q via inverter 96. has been done.

The output of the AND gate Q is branched, one being connected to the input terminal of the Nant gate Q2, and the other being connected to the reset terminal R of the RS flip-flop 94.

When the power is turned on, an H" level signal is input to the inverter 93, so the inverter 93 outputs an "L" level signal which is input to one input terminal of the NAND game) Q2. On the other hand, the photocoupler Pc, , PO2 are not driven, so their outputs are both at "L" level, and the outputs of inverters 95 and 96 are "H level," so R
S flip-flop 94 is reset. Note that an "H" level signal is input to the other input terminal of the Nant gate Q2, but since a 1L" level signal is input to the one input terminal, the output of the Nant gate Q2 is "H" level. ” level, and the cent terminal S of the RS free knob flop 94 is not affected.

When the auto-leveling switch 7 is closed, the output of the inverter 93 goes to the "H" level, so the output of the Nant gate Q2 goes to the "L" level.

Therefore, the RS flip-flop 52 is sent “
Since an H'' level signal is output, the transistor T5 is energized, and the light emitting diodes LED, LED2 of the photocouplers PC, PC2 are both driven.

Currently, since the vehicle height is high, the shielding plate 81 is a photocoupler PC,...
Assuming that it is located below PC2 and not shielded, both photocouplers PC and PC2 output an "H" level, so that solenoid S1 is energized and solenoid S2 is not energized, as in FIG. Therefore, the air pressure in the rear suspension unit 6 is exhausted and the vehicle height is lowered.

At this time, since the photocoupler PCL IPC2 both outputs the "H" level, the outputs of the inverters 95 and 96 both become the "L" level, and the output of the AND gate Q becomes the "L" level, so the RS flip-flop 94
is not reset.

Furthermore, when the vehicle height is lowered and only the photocoupler PC2 is shielded (corresponding to the state shown in Fig. 4), the photocoupler PC
Since the output of gate Q2 goes to L level, only the output of inverter 96 goes to H level, but since the output of inverter 95 remains at L level, the output of AND gate Q1 goes to L level. Yes, the RS flip-flop 94 is not reset.

When the vehicle height further lowers and reaches the appropriate vehicle height, both photocouplers PC, PC2 are shielded (corresponding to the state shown in Figure 5), the outputs both go to "L" level, and energization to solenoid S1 occurs. will be stopped. At this time, the outputs of the inverters 95 and 96 both go to the "H" level, so the output of the AND gate Q1 goes to the "H3" level, and the RS flip-flop 94 is reset.

If the vehicle height is low, this corresponds to the situation shown in Figure 6, and solenoid S
2 is energized, but solenoid S1 is not energized. Therefore, the valve 52 opens and the compressed air stored in the accumulator 4 is connected to the rear suspension unit 6, thereby raising the vehicle height.

At this time, the photocoupler PC outputs an "L" level signal, and the photocoupler PC2 outputs an H" level signal, so the outputs of the inverters 95 and 96 are "H" level and "L" level, respectively. , ANDGATE Q1
The output is "L level", and the RS flip-flop 94
is not reset.

When the vehicle height further increases and reaches the appropriate vehicle height, both photocouplers PC, pc2 are shielded (corresponding to the state shown in Figure 5), the outputs become "L level", and energization to solenoid S2 is stopped. ) At this time,
Since the outputs of inverters 95 and 96 both go to "H" level, the output of AND gate Q1 goes to "H" level, and RS flip-flop 94 is reset.

As explained in detail above, according to the present invention, when the auto-leveling switch is closed, even if the switch is subsequently opened, the control circuit operates until the vehicle height adjustment is completed.
Since the device can be stopped when the vehicle height adjustment is completed, the vehicle height will no longer be adjusted to the wrong level even if the auto leveling switch is opened before the vehicle height adjustment is completed.

[Brief explanation of drawings]

Figure 1 is a configuration diagram explaining the basic configuration of a vehicle height adjustment device for a motorcycle, Figure 2 is a circuit diagram showing an example of a control circuit used in the vehicle height adjustment device, and Figures 3 to 16 are vehicle height adjustment devices. FIG. 7, which is a diagram for explaining the operation of the adjustment device, is a circuit diagram showing an embodiment of the vehicle height adjustment device for a motorcycle according to the present invention. 1...Pressure switch 2...Dryer 3...Combiner unit 4...Akiemulator 5...Solenoid control valve 51...Amplifier valve 52...Down valve 6...Rear Cutushiron unit 7...Auto leveling switch 8...Leveling sensor 9...Control unit 91...Inverter 92...AND gate 93...Inverter 94...RS flip-flop 95.96...・Inverter Q, Q2...Gate S, S2...Solenoid pc, pc2...Photocoupler TI, T2, T3, Ta, T5...Transistor Patent applicant Suzuki Motor Co., Ltd. agent Patent attorney Shi I no Ro Ju I-3 Figure 5 Figure 4 Figure O 6

Claims (1)

[Claims] When the vehicle height detected by the vehicle height detector is lower than the appropriate vehicle height, air pressure from a pressure source is connected to the rear cushion unit to raise the vehicle height, and when it is higher than the appropriate vehicle height, air pressure in the rear cushion unit is increased. A motorcycle height adjustment device that lowers the vehicle height by exhausting air pressure to adjust the vehicle height to the appropriate height has a detection unit that detects that the vehicle height is at the appropriate height, and a sensor that is set by turning on the vehicle height adjustment switch. , a flip-flop is provided which is reset by the appropriate vehicle height detection signal from the detection section, and after the vehicle height adjustment switch is turned on, even if the vehicle height adjustment switch is released, it will not operate until the vehicle height adjustment is completed. A vehicle height adjustment device for a motorcycle, characterized in that it is configured to stop upon completion of adjustment.