Passenger car air suspension control system

Abstract

The invention discloses a passenger car air suspension control system. The passenger car air suspension control system comprises a height sensor, a speed sensor, a pressure sensor, an air inflation circuit, a solenoid valve group, a display and set module and a main controller, wherein 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 an air deflation circuit of the air bag; the display and set module is used for setting a suspension system parameter and choosing work modes; and the main controller is used for receiving the height information of a car body, speed information, the pressure information of an air storage tank, suspension system parameter information and work mode information and controlling the opening and closing of the solenoid valve group according to the information. According to the passenger car air suspension control system, the various sensors are utilized to monitor the corresponding parameters of a passenger car, the functions of a high position mode, a middle position mode, a low position mode, a side knelt mode, a high speed height mode, chassis stability, fault query, online parameter calibration and the like are achieved, different road conditions can be adapted, vehicle speed requirements can be met, and perfect maneuverability of the passenger car is guaranteed while riding comfort and comfort of the car are improved.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to an electronic control system of an air suspension for passenger cars. 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] 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 is to meet the compromise between vehicle ride comfort and handling stability, but it c...

AI Technical Summary

Problems solved by technology

However, the control method of the mechanical height valve is simple, the action error is large, and the function mode is single, which cannot well meet the requirements of the vehicle's handling stability, ride comfort, fuel economy, and ride convenience.

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