Air suspension vehicle load sensing valve system and control method thereof

A technology of air suspension and load-sensing valves, which is applied to vehicle components, control valves, air release valves, brakes, etc., can solve the problems of low safety, achieve high safety, easy operation, and ensure driving safety.

Pending Publication Date: 2018-04-20
DONGFENG COMML VEHICLE CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of low safety in the p

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  • Air suspension vehicle load sensing valve system and control method thereof

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[0032] Examples:

[0033] See figure 1 , An air suspension vehicle load sensing valve system, including air reservoir 1, load sensing valve 2, suspension airbag 3, brake air chamber 4, auxiliary air reservoir 5, solenoid valve 6, two-way valve 7, controller 8, The air pressure sensor 9, the brake signal 10, and the vehicle speed signal 11. The load sensing valve 2 includes a control port 21, a load sensing valve air inlet 22, and a load sensing valve air outlet 23. The air reservoir 1 enters through the load sensing valve in turn The air port 22 and the load sensing valve outlet 23 communicate with the brake chamber 4. The solenoid valve 6 includes a coil 61, a solenoid valve inlet 62, and a solenoid valve outlet 63. The two-way valve 7 includes a two-way valve one. No. 2 air inlet 71, No. 2 two-way valve inlet 73, and No. 2 two-way valve outlet 72. The auxiliary air reservoir 5 passes through the solenoid valve inlet 62, the solenoid valve outlet 63, and the two-way valve No. 1...

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Abstract

An air suspension vehicle load sensing valve system comprises an air storage barrel, a load sensing valve, a suspension air bag, a braking air chamber, an auxiliary air storage barrel and a controller. The air storage barrel communicates with the braking air chamber through the load sensing valve, the auxiliary air storage barrel communicates with the load sensing valve through an electromagneticvalve and a two-way valve sequentially, the suspension air bag communicates with the load sensing valve through the two-way valve and is in signal connection with the controller through an air pressure sensor, and the controller is in signal connection with the electromagnetic valve, a braking signal and a vehicle speed signal. When air leaks from the suspension air bag, the air pressure sensor obtains a low air pressure signal of the suspension air bag and transmits the low air pressure signal to the controller, in combination with the braking signal and the vehicle speed signal, the controller controls the electromagnetic valve to be opened, at the moment, the auxiliary air storage barrel communicates with the load sensing valve through the electromagnetic valve and the two-way valve sequentially and provides the air pressure signal for the load sensing valve so that it can be guaranteed that the braking air pressure output by the air storage barrel to the braking air chamber is nottoo low, and traveling safety is guaranteed. The designed air suspension vehicle load sensing valve system is high in safety, easy and convenient to operate and high in reliability.

Description

technical field [0001] The invention relates to the technical field of air suspension, in particular to an air suspension vehicle load sensing valve system and a control method thereof, which are mainly applicable to improving safety performance. Background technique [0002] At present, for cars equipped with air suspension, if the rear axle is equipped with a load-sensing valve, the air pressure signal needs to be obtained from the pipeline connected to the suspension airbag. High air pressure indicates that the vehicle is heavily loaded, and the output braking force is large. Braking power is small. [0003] Chinese patent, the authorized announcement number is CN200939876Y, and the utility model with the authorized announcement date on August 29, 2007 discloses an automotive load sensing valve assembly, which is used for vehicles with air suspension systems. The air control method is adopted, the airbag pressure is used as the control signal, the vehicle load is sensed ...

Claims

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Application Information

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IPC IPC(8): B60T8/18B60T15/02
CPCB60T8/1843B60T15/027
Inventor 卿鹏金智猛熊向光孙建军
Owner DONGFENG COMML VEHICLE CO LTD
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