JPS5853508A - Automatic car height adjustor - Google Patents

Abstract

PURPOSE:To make possible the car height adjustment during suspension of the operation of an engine, by energizing a magnetizing coil by closing a door switch so that change-over switches are connected to a power source thereby allowing a car height control circuit to be operated even though the operation of the engine is suspended. CONSTITUTION:When a car is in operation, a combination switch 3 and change- over switches 8, 9 are connected, and therefore a control circuit 1 is electrically charged from a battery (B) so that the car height adjustment is carried. When the combination switch 3 is turned off to stop the engine, a door switch 11 is closed to energize a magnetizing coil 13 so that movable contacts 8c, 9c of the change-over switches 8, 9 are turned to terminals 8b, 9b. Accordingly, the battery power source is connected to the control circuit 1, which is turn performs the car height adjustment. In this arrangement, the height of the car can be adjusted even though the operation of the engine is suspended.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle height adjustment device that can adjust the vehicle height based on the operation of a door switch after the engine has been stopped.

The present applicant has previously proposed a vehicle height adjustment device based on a series of studies. A vehicle height adjustment device uses a vehicle height sensor to detect changes in vehicle height due to the load applied to the vehicle, processes the detection signal from the vehicle height sensor in a control circuit, and outputs a control signal from the control circuit to control the actuator. This is a device that automatically maintains the vehicle height at a preset regular height by operating a mechanical system such as a drive device. Such a vehicle height adjustment device is comprised of an electrical system that detects changes in vehicle height and outputs signals for constant control, and a mechanical system that actually changes the height of the vehicle. The mechanical system will not operate unless a certain instruction is given by a control signal output from a control circuit that is the center of the electrical system.

Therefore, when the electrical system is not powered on, that is, when the combination switch is turned off, the vehicle height cannot be automatically adjusted. However, in actual vehicle usage, for example, after the vehicle load increases and the vehicle height is adjusted, the combination switch is turned off to stop the engine, and then the occupants exit the vehicle or unload their luggage. In such a case, the combination switch has already been turned off and battery power has not been applied to the electrical system, so the vehicle height will not be adjusted. Therefore, when a vehicle is stopped due to the above-mentioned circumstances, the vehicle height is not adjusted to the normal height and is maintained at a high vehicle height, resulting in an unnatural appearance of the vehicle body, which is not desirable.

The present inventor has created the present invention in view of the above-mentioned problems in automobile height adjustment devices and to effectively solve the problems.

An object of the present invention is to enable battery power to be connected to the control circuit by utilizing the operation of the door switch even if the combination switch is off and electricity is not supplied to the control circuit. To provide a vehicle height adjusting device capable of adjusting the vehicle height to a regular height according to a change in the vehicle height even after the engine is stopped.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

The drawing shows the circuit parts related to the invention of the vehicle height adjustment device. Reference numeral 1 designates a control circuit, which inputs a signal a related to a change in vehicle height detected by the control circuit 1, processes the signal under certain operations, and performs vehicle height control corresponding to vehicle height (E). The vehicle height adjustment device is configured to output a control signal to cause a mechanical system including an actuator, a drive device, etc. to perform the following.The structure and operation of the vehicle height adjustment device as described above are already known.

2 is a battery terminal, and a battery power source is connected to this terminal. Reference numeral 3 designates a combination switch, and in the figure, the movable element 4 is connected to an off terminal 5, and the combination switch 3 is in an off state. When the movable element 4 is operated and its tip contact 4a is connected to the accessory terminal 6 and the ignition terminal 7, the vehicle is generally in a driving state. The accessory terminal 6 and the ignition terminal 7 are connected to the control circuit 1 via respective changeover switches 8.9, and the contact 4a of the mover 4 is connected to the accessory terminal 6 at the same time.
, when connected to the ignition terminal 7, the changeover switches 8 and 9 are generally connected to the terminals 9a and 9a, respectively, and the battery power is applied to the control circuit 1.

Since such a state is a driving state of the vehicle, the control circuit 1 is in a state where it can automatically adjust the vehicle height in accordance with changes in the vehicle height.

Note that the terminal 10 of the combination switch 3 is a starter terminal, and when starting the engine, the movable element 4 is
is the terminal to be connected.

Door switch 1 is also connected between battery terminal 2 and ground.
A parallel circuit of the room lamp 12 and the excitation coil 13 is connected through the switch 1, and a branch extends from the circuit section of the excitation coil 13 on the battery terminal 2 side.
It is connected to terminals 9b, 9b of 9. Also, selector switch 8
, 9 are configured to be connected to power supply side terminals Bb, gb by the excitation coil 13, and the excitation coil 13 and the interlocking changeover switches 8, 9 constitute a relay. ing.

The door switch 11 is closed when the vehicle door is opened and opened when the door is closed, and when the door or door is opened, it lights up the room lamp 12 and energizes the excitation coil 13. When the door is closed, the room lamp 12 is turned off and the excitation coil 13 is turned off.

In the above configuration, while the vehicle is in operation, the movable element 4 of the combination switch 3 is connected to the terminals 6, 7, and the movable contacts gc, 9c of the changeover switches 8, 9 are connected to the terminals 8a, 9a.
Since the control circuit is connected to the vehicle, the control circuit, which is supplied with electricity from the battery power source, can automatically adjust the vehicle height. When the combination switch 3 is turned off and the engine is stopped, electricity cannot be supplied to the control circuit 1, so the vehicle height cannot be adjusted. However, when the vehicle door is opened after the engine has stopped and a passenger exits the vehicle or unloads luggage, the door switch 11 is closed, and the excitation coil 13 is energized, causing the movable contact 8c of the changeover switch 8.9 to close. ,
9c is switched to the terminal gb, 9b side. In this way, the control circuit 1 is connected to the battery power source via the terminals Bb and gb, and the control circuit 1 is activated and the predetermined vehicle height adjustment according to the change in vehicle height can be performed after the engine is stopped. is also possible. When the door is opened and the passenger gets out of the vehicle, the load on the vehicle becomes smaller, so the drive system that had been raising the vehicle height gradually weakens its force and keeps the vehicle height at the normal height. Try to keep it in place. When exiting the vehicle is completed and the vehicle door is finally closed, the door switch 11 is also opened, the excitation coil 13 is deenergized, the movable contacts 8c and 9c are switched to the terminals Bb and gb, and the power is turned off. to stop the vehicle height adjustment operation.

As described above, the operation of the door switch is utilized during the time when the vehicle door is open to turn on the power to the control circuit 1 and perform the vehicle height adjustment operation even after the combination switch is turned off. If the door is open for a short time, it may not be possible to completely correct the problem, but at least the extreme unnatural appearance of the vehicle body can be corrected.

Furthermore, since it is natural that the time the door is open is proportional to the number of people on board when getting off the vehicle, and to the amount of luggage when unloading, the amount of adjustment of the vehicle height according to the present invention is also This is convenient because it is proportional to the number of passengers and the amount of loaded luggage.

It should be noted that the present invention is not limited to the automobile power supply system of the above embodiment, but can of course be applied to any type of automobile power supply system or other vehicle power supply system.

As is clear from the above explanation, according to the present invention, the vehicle height can be automatically adjusted even after the engine has stopped, so that the unnatural appearance of the vehicle when the vehicle is stopped can be eliminated. . In addition, the vehicle height adjustment can be easily and safely activated temporarily after turning off the vehicle height adjustment switch, and the circuit to achieve this is a circuit that utilizes the electrical circuit elements of conventional vehicles. It can be constructed by simply making changes and has an economical advantage.

In particular, the period for adjusting the vehicle height is limited to the period from when a person opens the door until it closes, so the period of time for adjusting the vehicle height is limited (at any rate, a person is close to the vehicle during the operation period, so it is difficult to monitor whether the operation status is normal or abnormal). It has the effect of being able to.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention and are circuit diagrams according to the present invention. In the drawing, 1 is a control circuit, and 3 is a combination. 5 is an off terminal, 6 is an accessory terminal, 7 is an ignition terminal, 8 and 9 are selector switches, 10 is a starter terminal, 11 is a door switch, 12 is a room lamp, and 13 is an excitation coil. Patent applicant Honda Motor Co., Ltd.

Claims (1)

[Claims] A vehicle height sensor that detects changes in vehicle height, a control circuit that inputs the detection signal from the vehicle height sensor and outputs a control signal under certain operations, and a machine that changes the vehicle height in a predetermined manner based on the control signal. In an automobile height adjustment device consisting of a system, a changeover switch is provided in the power supply path of the control circuit, and an excitation coil is connected in series with the door switch, and when the door switch is closed, the excitation coil is energized. An automobile height adjustment device characterized in that the movable contact of the changeover switch is connected to a power supply terminal when the changeover switch is turned on.