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Gas path device, air suspension system, automobile and control method thereof

A technology of air suspension and control method, applied in suspension, elastic suspension, vehicle spring, etc., can solve the problems of large number of valve bodies, complex structure, numerous valve bodies, etc., to achieve simple air path structure, long life, The effect of prolonging the service life

Pending Publication Date: 2019-10-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing air suspension air circuit generally has the problems of complex structure and numerous valve bodies
Patent CN106574645B discloses a pneumatic circuit for the air suspension system of passenger cars. The pneumatic circuit is mainly composed of solenoid valves, pneumatic valves, check valves, throttle valves and other components, and has a complex structure and a large number of valve bodies. question

Method used

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  • Gas path device, air suspension system, automobile and control method thereof
  • Gas path device, air suspension system, automobile and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a kind of air circuit device comprises air supply device, three-position three-way valve 5, two-position two-way valve 6, exhaust device, pneumatic facility 7 and processor 9, and described air supply device comprises air compressor 1, Dryer 2, air storage tank 3 and pressure switch 4, the exhaust device includes a muffler 8, the control port of the air compressor 1 is connected to the first output port of the processor 9, the output port of the air compressor 1 is connected to the dryer 2, the output port of the dryer 2 is connected to the input port of the gas storage tank 3, and the pressure switch 4 is installed on the gas storage tank 3, and the pressure switch 4 is connected to the fourth output port of the processor 9, and the gas storage tank 3 The output port is connected to port A of 3-position 3-way valve 5, port T of 3-position 3-way valve 5 is connected to the muffler, port P of 3-position 3-way valve is connected to port A of 2-p...

Embodiment 2

[0048] The difference between this embodiment and Embodiment 1 is that the two-position two-way valve 6 is replaced by a three-position three-way valve, the three-position three-way valve includes port A, port P and port T, and port A and three-position three-way valve The port P of the valve 5 is communicated with the pneumatic device 7 through the pipeline, and the port T is suspended. The two-position two-way valve 6 is a two-position two-way solenoid valve. The first state of the second stage is that port A and port P of the three-position three-way valve are closed; the second state of the second stage is that ports A and P of the three-position three-way valve are closed. Port P is connected.

[0049] The advantage of this embodiment is that the two multi-position multi-way valves all use three-position three-way valves, and the muffler 8 can be connected to any port T of the three-position three-way valve, and there is no need to identify which muffler 8 is connected to...

Embodiment 3

[0051] Such as figure 2 As shown, an automobile air suspension system including the air circuit device described in Embodiment 1 includes an air compressor 1, a dryer 2, an air storage tank 3, a pressure switch 4, a three-position three-way valve 5, a plurality of Two-position two-way valve 6, muffler 8, processor 9, pneumatic facility 7 and height sensor 10. In this embodiment, the height sensor 10 is an electrical element, preferably an inductive element, the pneumatic device 7 is preferably an air spring, the three-position three-way valve 5 is preferably a three-position three-way solenoid valve, and the two-position two-way valve is preferably a three-position three-way solenoid valve. It is a two-position two-way point solenoid valve.

[0052] The port P of the third position three-way valve 5 is connected with four two-position two-way valves 6 , and each two-position two-way valve 6 is respectively connected with an air spring, and each air spring is provided with a ...

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Abstract

The invention provides a gas path device, an air suspension system and an automobile. The gas path device comprises an air supply device, a pneumatic facility and a processor, wherein a first-stage multi-position multi-way valve and a second-stage multi-position multi-way valve are arranged between the air supply device and the pneumatic facility; the processor controls the state of the first-stage multi-position multi-way valve according to the inflation or deflation requirements of the pneumatic facility, and / or controls the state of the second-stage multi-position multi-way valve, wherein the state of the first-stage multi-position multi-way valve comprises a first-stage first state, a first-stage second state and a first-stage third state; and the state of the second-stage multi-position multi-way valve comprises a second-stage first state and a second-stage second state. The gas path device is simple in gas path structure, and longer in service life.

Description

technical field [0001] The invention relates to an air circuit device, an air suspension system, an automobile and a control method thereof. Background technique [0002] Automobile suspension is the general term for the force transmission linkage device between the frame (or load-bearing body) and the axle (or wheel), and is an important device to ensure the smoothness of the vehicle's driving and handling stability. Air suspension is a relatively advanced automobile suspension system at present. Its principle is to use the compressibility of gas to achieve elastic effect. [0003] The air suspension system can be regarded as a pneumatic system, which is mainly composed of four parts: air source device, actuator, control element and auxiliary element. Under the control of the ECU (electronic controller), the directional control valve performs corresponding opening / closing operations, so that the air pressure of the compressed gas inside the air spring can be adjusted as th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/052B60G17/015
CPCB60G17/0523B60G17/015B60G2202/152B60G2500/02B60G2500/203B60G2500/204B60G2500/205
Inventor 邱东魏恒潘高强刘壬生陈辉朱守朝
Owner GREE ELECTRIC APPLIANCES INC
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