Air spring system with rigidity adjustable in real time and electronic control air suspension system

Abstract

According to the air spring system with the rigidity adjustable in real time and the electronic control air suspension system, the air spring system comprises a main air bag, an air bag cover plate and a piston which are connected in a sealed mode and further comprises a composite air bag, the composite air bag is installed on the piston in a pressed mode, and the air pressure of the composite air bag is controlled through an independent air path. The electronic control air suspension system with the rigidity capable of being adjusted in real time comprises a composite air spring assembly, an acceleration sensor, a height control valve, a composite air bag control valve and an air suspension controller. The air suspension controller judges inflation and deflation of the height control valve and the composite air bag control valve through an algorithm according to a vibration signal of the acceleration sensor and a CAN signal, and therefore the rigidity of the suspension system is changed. According to the composite rigidity real-time adjustable air spring system, the rigidity of an air suspension system can be changed in real time and in a large range, meanwhile, the requirements for vehicle handling stability and smoothness are met, and the vehicle performance is greatly improved.

Description

technical field [0001] The invention relates to the technical field of electronically controlled air suspension for vehicles, in particular to an electronically controlled air suspension system that adds vehicle vibration signal input, air spring assembly actuating mechanism and control system stiffness in real time on the basis of a traditional air suspension system. The air suspension system enables the stiffness of the electronically controlled air suspension system to be adjusted and changed in real time in a wide range according to the control requirements of road conditions and vehicle operating conditions, so as to achieve the purpose of simultaneously improving vehicle handling stability and ride comfort. Background technique [0002] As one of the important components in the electronically controlled air suspension system, the air spring is a key component related to the handling stability and smoothness of the vehicle system, but the traditional air spring system ca...

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to provide an air spring system whose stiffness can be adjusted in real time to solve the problem that the traditional air suspension cannot satisfy the handling stability and smoothness of the vehicle at the same time.

[0006] The second technical problem to be solved by the present invention is to provide an electronically controlled air suspension system with real-time adjustable stiffness for the problem that the traditional air suspension cannot satisfy the vehicle handling stability and smoothness at the same time. Increase the stiffness of a wide range of real-time adjustable composite air spring system, and increase the vehicle vibration signal input in the control strategy compared with the traditional air suspension

In this way, the suspension stiffness can be changed quickly and in a wide range according to the road surface conditions and vehicle operating conditions, which solves the problem that the traditional air suspension system design cannot take into account the ride comfort and handling stability of the vehicle

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