JPS58126207A - Car height adjustment device of four-wheel drive car - Google Patents

Abstract

PURPOSE:To facilitate ascent and descent of a crew and also loading and unloading of baggages by composing a car so as to reduce the car height by means of a car height adjustment mechanism when a signal for opening a door is given from a detector which detects opening of the door. CONSTITUTION:When a door is closed and a door switch 40 is put in OFF-state during an engine is in operation, an IC control block 30 sends out a signal to close exhaust valves 22, 24 and open intake valves 8, 10, then air is supplied from an accumulator 20 to shock absorbers 11, 12, 14, 16 and the car height is increased. Subsequently, when the door is opened and the door switch 40 is placed in ON-state under the above-mentioned condition, exhaust valves 22, 24 are opened. Thus, the car height is reduced, and when pressure switches 48, 50 detect that internal pressure of shock absorbers 11, 12, 14, 16 come to have a predetermined value, exhaust valves 22, 24 are closed by means of the IC control block 30 to finish an action of reducing the car height.

Description

[Detailed description of the invention] The present invention relates to a vehicle height adjustment device for a wheel drive vehicle.

It is desirable for a car driven by a car to increase the clearance between the underside of the vehicle and the road surface by raising the top of the car when driving off-road or in rivers, but on the other hand, it is necessary to increase the clearance between the underside of the vehicle and the road surface. It is desirable for the vehicle height to be low, and therefore, conventional vehicles have been proposed that allow the vehicle height to be adjusted arbitrarily, but there is a problem in that the vehicle height adjustment operation is cumbersome.

The present invention addresses the above-mentioned conventional problems, and includes:
The object of the present invention is to provide a vehicle height adjustment device for a canopy-driven vehicle that makes it more convenient for passengers to get on and off and for loading and unloading luggage by linking the up and down of the vehicle height with the door opening force. The configuration features a door open detector that detects when a door is opened, and a vehicle height adjustment mechanism that raises and lowers the vehicle height to lower the vehicle height based on the door open signal from the door open detector. It is. In addition, there is a door open detector that detects when a door is opened, and a car ai II that raises and lowers the vehicle height! I
*em+ and an ignition switch status detector that detects that the ignition switch is ON, and the vehicle height is lowered by the door open signal from the door open detector, and the ignition switch status detector detects that the ignition switch is ON. ignition l
The height of the vehicle is raised by the on-switch ON signal. The vehicle further includes a door open detector that detects when the door is opened, a vehicle height adjustment mechanism that raises and lowers the vehicle height, and a start detector that detects when the V-wheel drive vehicle starts. The vehicle height is lowered by the release signal and raised by the development signal from the start detector. Further digging,
The vehicle has a door open detector that detects when the door is open, a door close detector that detects when the door is closed, and a vehicle height adjustment mechanism that raises and lowers the vehicle height, and which is driven by a door open signal from the door open detector. The height of the vehicle is lowered, and the height of the vehicle is raised in response to a door close signal from the door close detector.

Since the present invention is constructed as described above, the vehicle height is automatically lowered when the door is opened for passengers to exit the vehicle or to load/unload cargo, and the ignition switch is turned to 0-N for driving. It is convenient to automatically raise the vehicle height when the vehicle starts or starts. Furthermore, since the driver does not forget to lower or raise the vehicle height, the driver can concentrate on driving, which is superior in terms of safety. Furthermore, the structure that raises the vehicle height in conjunction with turning the ignition switch ON or starting the vehicle prevents battery consumption while the engine is stopped.

Embodiments of the present invention will be described below with reference to the drawings. The air circuit of the vehicle height adjustment device 1 is connected to a compressor unit 5 consisting of a motor 2 and a compressor 4, and from the compressor 4 through a dryer 6, to a front intake valve 8, a rear intake valve 10, and a front intake valve a. The left and right air vents connected to
And the rear left and right air repellers connected to the rear intake valve 10? 14.11, and a safety valve sealing emulator unit 20 which is communicated with a communication path between the dryer 6 and the intake valve 8.10 and has a pressure 18.
and front intake fi valve8. ! It consists of a front exhaust valve 22 that communicates with a communication path between the front engine pumps 11 and 12, and a rear exhaust valve 24 that communicates with a communication path between the rear intake valve 1o and the rear engine engine 14.1g. A flexible tube 26 is appropriately arranged in the communication path.

The electric circuit of the vehicle height adjustment device 1 is mainly composed of a 10 control block 30 that performs intake and exhaust control. The rear leveling sensor 34 detects the vehicle height and selects and adjusts the vehicle height in stages. The air repelling switch 3B, a door switch 40 that is turned ON when the door is open, and a relay switch 44 that relays an ignition fault detection switch 42 that is turned ON when the engine is rotating are input. The IC control block 30 also includes a first pressure switch 46 that senses the pressure between the dryer 6 and the intake valve 8.100 to control the motor 2, and a front intake valve and front shock absorber 11.12. 2-) P reflex switch 48 which senses the pressure between and controls the front exhaust valve 22; and the rear exhaust valve 2 which senses the pressure between the rear intake valve 10 and the rear exhaust valve 22.
4, the front intake valve 8, and the rear intake valve 10. One terminal is grounded, and the + terminal of the nine patch IJ-52 is connected to the IC control block 30, the door switch 40, and the ignition ignition detection switch 42.
The FF terminal is connected to one battery terminal of the ignition switch 42.

The vehicle height adjustment operation in the above configuration is as follows.

When the egress door opening detection switch 42 is on and the engine is rotating, when the F door opening switch 40 is turned on, the relay switch 44 outputs an OFF signal 11C to the control fa ivy 30. The 1G control pump 30 manually sends the exhaust signal to the #Iλ pressure switch 48 to open the 7W exhaust valve 22, and also sends the exhaust signal to the 3F pressure switch 50.
input to open the rear exhaust valve 24. The second and third gear switches 48.50 detect that the vehicle height has lowered and the shock absorbers 11, 12, 14, and 16 with air pressure regulators have reached a predetermined pressure, and this causes the IC control block 30 to The output of the signal is stopped and the operation of lowering the vehicle height is completed.

On the other hand, when the engine engine is rotating when the engine is rotating and the door is closed and the door switch 40 is turned off, the relay switch 44 manually sends an ON signal to the IC control block 30. The IC control block 30 is
Gretshiya Switch 4g! Exhaust valve 22 for each So
．． 24 (outputs No. 1, and also closes intake valve 8, IO
K+ outputs a signal e to open each valve. Intake valve 8.1
When G is released, the @/Gretsusha switch 46 detects the pressure drop at the output part of the middle humerator unit 20 and turns ON, and the middle humulator unit 20 is activated and the shock absorber 11, 12, 14 is activated. .16 is supplied with air. A pressure corresponding to a predetermined pressure is specified in advance by the Ic control control inward 30KG1 manual leveling switch 36 or auto leveling switch 38, and the vehicle height is raised to a predetermined height and the air pump is activated. 16 reaches a predetermined pressure, the second and third grate switches 48.5
0 detects this, and the IC control block 30
A closing signal is output to the air intake valve 8 and the rear intake valve 10. 70
When the front intake valve 8 and the rear intake valve 10 are closed and the pressure at the output part of the accumulator unit 20 becomes higher than a predetermined value, the @ll brake radiator switch 4 detects this and turns OFF, and the accumulator unit 20 is turned OFF. 20 is stopped. With the above steps, the operation of raising the vehicle height is completed.

In another embodiment of the present invention, the operation of raising the vehicle height is controlled by a signal indicating that the door is closed and a timer placed in the instrument panel, and the timer is manually set after the door is closed. In a further embodiment of the present invention, the operation of raising the vehicle height is controlled by the signal of closing the door or the signal of starting the vehicle. The signal for starting the car is Che79 and p4- as the first
This is a signal generated by one of the following: accelerating, depressing the accelerator, or dropping the wheel.

[Brief explanation of drawings]

The drawing is a circuit explanatory diagram of an embodiment of the present invention. l...Vehicle height adjustment device 6...Kongretsu Saet 11.12...70 tons with air level adjustment device
Tsuku absorber 14.16...Library lift absorber with air leveling device 30...Ic control block 32...7W repelling senna 34...
・Rear leveling sensor 36...Manual leveling switch 38...
...Auto-leveling switch patent originator Toyo Kogyo Co., Ltd.

Claims (4)

[Claims] (1) The vehicle is characterized by having a door open detector that detects door opening and a vehicle height adjustment mechanism that raises and lowers the vehicle height, and lowering the height of the sand vehicle in response to a door open signal from the door open detector. Vehicle height adjustment device for wide-wheel drive vehicles. (2) The door open detector includes a door open detector that detects when the door is opened, a vehicle height adjustment mechanism that raises and lowers the vehicle height, and an ignition switch state detector that detects that the ignition switch is ON. A vehicle height adjustment device for a wide-wheel drive vehicle, characterized in that the vehicle height is lowered in response to a door opening signal from an ignition switch detector, and the vehicle height is raised in response to an ignition switch ON signal from an ignition switch detector. (3) It has a door open detector that detects a door open pipe, a vehicle height adjustment mechanism that raises and lowers the vehicle height, and a start detector that detects the start of this passenger-wheel drive vehicle. A vehicle height adjustment device for a μ-wheel drive vehicle, characterized in that the vehicle height is lowered in response to a door open signal and raised in response to a start signal from the start detector. (4) It has a door open detector that detects when the door is open, a door close detector that detects when the door is closed, and a vehicle height adjustment mechanism that raises and lowers the vehicle height, and the vehicle height is controlled by the door open signal from the door open detector. A vehicle height adjustment device for a wide-wheel drive vehicle, characterized in that the vehicle height is lowered and the vehicle height is raised in response to a door close signal from the door close detector.