JPS58209676A - Regulator for car 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 relates to a vehicle height adjustment device for an IJ+ two-wheeled vehicle.

In recent years, various types of 1FF have been developed to improve the performance of motorcycles.
Attempts are being made to incorporate the i# function. For example, in order to improve the shock absorbing function of a shock absorber, there is an air suspension that uses a compressor or other pressurized air supply source to adjust the volume of pressurized air to change the expansion rate.
It is.

Motorcycles equipped with such air suspensions are equipped with a vehicle height detection system to detect the preset height of the ground, and when the vehicle height differs from the set height, the controller is activated based on the detection signal. By supplying pressurized air to the air suspension and correcting the extension type of the air suspension to an appropriate setting height, it is possible to provide a comfortable ride without the feeling of bottoming out.

When performing such an adjustment, the adjusted vehicle height is different when the adjustment sweep is made when the vehicle is stopped and when the adjustment sweep is made while the vehicle is running.

Therefore, in order to adjust the vehicle height so that it is appropriate while driving, it is necessary to perform the adjustment while the vehicle is under the same conditions as the driving conditions. However, in general, vehicle height adjustment sweeps are sometimes carried out without such awareness, and with conventional equipment, people often perform height adjustment sweeps when the vehicle is stopped, and even when the vehicle is empty. As a result, it is impossible to set the vehicle to an appropriate height while the vehicle is in motion, resulting in poor ride quality and poor ground conditions.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a vehicle height adjustment device for a self-propelled crab-wheeled vehicle that can always adjust the vehicle height appropriately in accordance with the driving conditions. It's about doing.

The present invention, which is distantly related to the above object, controls the discharge of pressurized fluid to the shock absorber by a controller based on the configuration signal of the vehicle height detector, and adjusts the amount of extension of the shock absorber to a predetermined height. In the vehicle height adjustment device for a motorcycle according to the present invention, there is provided an interface that enables the vehicle height adjustment by the controller at least when an ignition switch is on and a detection signal indicates that the vehicle speed is lower than the vehicle speed when the vehicle is running or a predetermined set speed. It is characterized by the provision of a lock circuit.

Hereinafter, the present invention will be specifically explained with reference to examples shown in the drawings.

Figure 1 shows a car equipped with an air suspension as a shock absorber.
It shows a crab car. From the head vibe 1, a main frame 2 and a down tube 3 extend diagonally backward from the upper and lower sides, and an engine 4 is mounted below the down tube 3. Moreover, between the rear end of the main frame 2 and the upper end of the rear arm 5,
An air suspension 6 whose details are shown in FIG. 2 is provided. 8 is a buffer (2) provided at the tip of the front flap 7.

As shown in FIG. 2, the above-mentioned air suspension 6 is
The main parts thereof include a sill 20, a piston 21 that is fitted into the sill 20 so as to be able to move up and down, and a rod 22 that is connected to the piston 21. The cylinder 20 is filled with oil, and this oil flows through the hole provided in the piston 21 as the piston 21 moves up and down, and the resistance of the flow I11 at this time generates a column impact force. It has become. Further, a free piston 23 is fitted below the cylinder 20, and a space (3) in the lower cylinder 20 separated by the free piston 23 is filled with inactive gas.

On the other hand, a cylindrical case 24 connected to a rod 22 is fitted into the upper part of the sill 20 so as to be movable up and down. A rubber bellows 25 is provided between the inner wall of the case 24 and the outer wall of the sill 20, and an air chamber 26 is provided inside the bellows 25.
is formed. Air pressurized by a compressor 12, which will be described later, is pressurized into the air chamber 26 so that it functions as an air cushion. tt, the T width of the case 24 and the spring receiver 27 provided at the bottom of the cylinder 20.
Spring 2nd is inserted into the darkness. Therefore, this air suspension 6 moves the case 24 up and down by changing the amount of pressurized air that overlaps the air chamber 25, thereby expanding the entire width. It is now possible to adjust the ill force and the spring 2nd at equilibrium force at the same time.

FIG. 3 shows an outline of the vehicle height adjustment device of the present invention based on the air suspension 6 described above, and FIG. 4 shows the control logic of the interlock circuit (5) (4) of the same device. ? It is a clear picture.

In FIG. 3, a vehicle height detector 16 detects the vehicle height of the motorcycle. Since the vehicle height is proportional to the drying temperature of the air suspension 6, the above vehicle height detection heat station 1G
The vehicle height H detected by the vehicle is proportional to the expansion of the air suspension 6. This vehicle height detection 11
1G inputs the detection signal to the controller 17. On the other hand, the compressor 12, which is driven by the motor ID, sucks air from the atmosphere through the air filter 13, pressurizes the air, and supplies it to the air suspension 6 through the check valve 14. ing. Further, a solenoid valve IB is provided so as to branch off in the path between the check valve 14 and the air suspension 6, and pressurized air is discharged via this solenoid valve 1B. The control Tl signal issued from the controller 17 described above is input to the motor 10 that drives the compressor 12 and the solenoid valve 1, respectively.

The above-mentioned controller 17 is provided with adjustability (6) 15. The controller 17 is configured to operate only when the adjustment device 1j switch 15 is turned on and the interlock circuit 40, which will be described in detail later, activates the controller 17.

FIG. 4 is a diagram showing the control logic of the interlock circuit for the controller 17 described above.

In Figure 4, 41 is the ignition switch, Sochi, 4
2 is the vehicle speed detectability. This ignition switch 41 is on signal, and the detection signal of the vehicle speed V detected by the vehicle speed detector l1142 is a predetermined vehicle speed V set for safety. The control circuit 45 is powered on only when V≦Vo, that is, when both signals are in the AND condition. By turning on the power of this control circuit 45,
Vehicle height (The deflating device 15 emits a detection signal. When the vehicle height is the same as the set height, the display lamp 43 is not lit due to the detection signal at that time, but on the other hand, when the vehicle height is different from the standard set height. When the date and number are detected, an indication of inappropriateness is displayed on the display lamp 43.

Therefore, when the latter vehicle height irregularity display appears,
When the driver turns on the above-mentioned adjustment operation switch 15 after seeing the display on the display lamp 43, this on signal and the inappropriate vehicle height <=q form an AND condition, and the controller 17
generates an IM signal and starts vehicle height adjustment as described later. At this time, the ON signal of the adjustment margin IJI switch 15 is held for a certain period of time (about 1 minute) by the hold circuit 44, and is activated after the delay time is reduced.

That is, when starting the adjustment as described above, the vehicle height detection 1116
When the vehicle height detected by the controller 17 is lower than the set reference height, the control signal issued from the controller 17 is
is activated to drive the compressor 12, while the solenoid valve 1 is in the closed state as shown in FIG. However, the air pressurized by the compressor 12 is supplied to the air suspension 6 to increase its expansion amount. When the amount of elongation reaches the reference length, the difference from the base (7) becomes zero and the control circuit 45 is turned off.

Conversely, when the vehicle height is higher than the reference height, the control signal from the controller 17 opens the solenoid valve 1 and keeps the motor 10 in a stopped state. therefore,
The pressurized air in the air suspension 6 is released through the solenoid valve 18, and when the amount of extension of the air suspension becomes far from the standard length, the control circuit 45 is turned off, so the solenoid valve returns to its original closed state for the rest of the day. Returning, Air Suspension 6 is an extension of its set standards! will be maintained.

According to the vehicle height adjustment device described above, the controller 17
The interlock circuit 40 is activated by the adjustment %1ffFl start signal from the interlock circuit H1i40, and this interlock circuit 40 is activated when the ignition switch 41 is turned on and the vehicle is in a running state, and moreover, it is a predetermined type aV that is safe to sweep while the vehicle is running.
It is designed to turn on when the temperature is below o. That is, the controller F is designed to be in a state where it can perform control operations (9) (8) only when the interlock circuit 40 is turned on. Therefore, even if you try to adjust the vehicle height when the vehicle is stopped, the controller I7 cannot operate, and only when the vehicle is in a running state. This will allow you to make adjustments. Therefore, with the above-mentioned device, it is possible to adjust the vehicle height in a way that matches the driving conditions of the vehicle and is safe for driving. You will be able to do this.

In the above-described embodiment, the l control circuit 4 in the interlock circuit 140 that brings the controller 17 into a controllable state
The ON signal of the ignition switch 41 and the vehicle speed signal of the vehicle east detector 42 are used as the signal to turn on the vehicle.・Storing the instant 45 (you may also add item a. In other words, the ignition switch 4
1 on signal, the vehicle speed signal of the vehicle speed detector 42, and the main stand 45' 1)! When the previous signal becomes an AND condition, the control circuit 45 is turned on for the first time, and the controller (1
0) It may be set to 1 so that 17 can be controlled.

Further, in the above embodiment, a case has been described in which the shock absorber is pressurized using pressurized air as the m body, but the present invention is also applicable to the cap 11 using other bodies or liquids.

As described above, the present invention uses a controller based on a detection signal from a vehicle height detector. L balance! In a motorcycle height adjustment system that controls the discharge of pressurized fluid against snow and adjusts the extension point of a shock absorber to a predetermined height, at least the ignition switch is on and the vehicle is The system is equipped with an interlock circuit that enables the vehicle height adjustment by the controller when a detection signal indicates that the vehicle speed is lower than the vehicle speed while driving or a predetermined set speed. Since the vehicle does not need to be operated and can be adjusted only at safe running contact points, it is possible to always adjust the vehicle height appropriately to suit the running conditions.

[Brief Description of the Drawings] (11) Figure 1 is a side view of a motorcycle equipped with the device of the present invention;
Figure 2 is a cross-sectional view of the air suspension in the motorcycle, and Figure 3 is a vehicle height adjustment according to an embodiment of the present invention.
44 of the temporary sideway diagram is a diagram explaining the control logic of the interlock circuit of the adjustment device. 6.Q air suspension, 10..motor, 12..compressor, 15..
Adjustment ■ Switch, 16...Vehicle height detector, 17...Controller, 40
...Interlock circuit, 41..Ignition switch, 42..Vehicle speed detector, 45..Control circuit. Agent Patent Attorney Ogawa (a - Patent Attorney Noguchi Ren Teru Patent Attorney Kazuhiko Saishita (12) Figure 2 Figure 3

Claims (1)

[Claims] In a vehicle height adjustment device that controls the displacement of pressurized fluid to a shock absorber by 1 meter based on a detection signal of vehicle height detection capability, and adjusts the extension of the shock absorber to a predetermined setting height, at least an ignition switch is provided. is A″, /
When a signal is detected and the vehicle speed is lower than the vehicle speed when the vehicle is running or a predetermined set speed, the vehicle height EJ by the controller is detected.
4! I! A vehicle height adjustment device for a motorcycle, characterized by being provided with an interlock circuit that enables operation of the vehicle.