Air suspension control system for truck and trailer

Abstract

The invention discloses an air suspension control system for a truck and a trailer. The air suspension control system for the truck and the trailer comprises a height sensor, a pressure sensor, an air inflation circuit, a solenoid valve group, a display and set module and a main controller, wherein the height sensor is used for obtaining height information of a truck body and a trailer body; the pressure sensor is used for obtaining pressure information of an air storage tank; the air inflation circuit is used for opening and closing of an air bag, and the solenoid valve group is used for opening and closing of a deflating circuit of the air bag; and the display and set module is used for displaying the height information of the truck body and the trailer body and the pressure information of the air storage tank and setting the height information of the truck body and the trailer body; and the main controller is used for receiving the height information of the truck body and the trailer body and the pressure information of the air storage tank, sending the height information of the truck body and the trailer body and the pressure information of the air storage tank to the display and set module, and controlling the opening and closing of the solenoid valve group according to the set information of the set height of the truck body and the trailer body. According to the air suspension control system for the truck and the trailer, the height of the truck body and the trailer body can be changed by controlling the air inflation and the air deflation of the air bag, the trailer is enabled to hang off conveniently, and meanwhile, the manipulation stability, the riding comfort, the riding safety, the fuel economy and the like of the truck and the trailer are improved.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to an electronic control system for an air suspension for trucks and trailers. Background technique [0002] Car suspension is one of the important parts of the vehicle. It elastically connects the body and the axle. When the car is running, it is used to buffer the impact force transmitted from the uneven road to the frame or body, and attenuate the vibration caused by it. Make sure the car runs smoothly. [0003] Passive suspension is an earlier suspension structure in automobile suspension. The passive suspension is mainly a mechanical system composed of leaf springs or coil springs and shock absorbers. The characteristics of each component in the passive suspension cannot be adjusted, and can only passively absorb energy and ease the impact. The traditional passive suspension has a fixed suspension stiffness and suspension damping. The starting point of the design ...

AI Technical Summary

Problems solved by technology

However, the control method of the mechanical height valve is simple, the action error is relatively large, and the function mode is single, which cannot meet the requirements of the convenience of detachment, handling stability, driving comfort, driving safety and fuel economy of the whole vehicle.

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