Comfortable and safe self-powered active suspension parameter determination method and application thereof

Abstract

The invention discloses a method for determining parameters of a self-energized active suspension taking comfort and safety into consideration, application of the method, the suspension designed by applying the parameter determination method and a working method of the suspension, and belongs to the field of automobiles. The method comprises the following steps: firstly, determining five parameters of rigidity of a traditional vibration reduction structure, rigidity of an anti-resonance vibration reduction structure, inerter of the anti-resonance vibration reduction structure, damping of the traditional vibration reduction structure and damping of the anti-resonance vibration reduction structure in a comfortable mode, and then determining two parameters of damping of the traditional vibration reduction structure and damping of the anti-resonance vibration reduction structure in a safe mode; the two requirements of automobile riding comfort and driving safety are considered at the same time, switching among an initial mode, a safe mode and a comfortable mode can be achieved, circulation opening and cut-off control is conducted through oil in the second damping pipe and the fourth damping pipe, two-stage hierarchical control is conducted on damping of a traditional vibration reduction structure and damping of an anti-resonance vibration reduction structure, and the damping effect is good. And the whole suspension can perform work selection of a safety mode and a comfort model according to driving working conditions.

Description

technical field [0001] The invention belongs to the field of automobiles, and relates to a suspension applied to automobiles, in particular to a method for determining parameters of a self-powered active suspension structure and a self-powered active suspension designed according to the determined parameters, which can effectively improve the ride comfort and driving of automobiles safety. Background technique [0002] Suspension is an important structural and functional part of a car, which has an important impact on the ride comfort and handling stability of the car. According to the working capacity of the suspension actuator, the suspension can be divided into three types: passive suspension, active suspension and semi-active suspension. In addition to the actuator, the current active suspension and semi-active suspension must also include a feedback control system formed by sensors and controllers. Therefore, the system complexity and manufacturing cost are relatively ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing self-powered active suspension does not provide a parameter determination method, and the limited third mass of the suspension cannot simultaneously take into account the car ride comfort and driving safety, and proposes a car ride comfort The method for determining the parameters of the self-powered active suspension and driving safety is proposed, and it is proposed to apply the parameter determination method to design the best structure of the self-powered active suspension that takes both ride comfort and driving safety into consideration, and the suspension's The working method, according to the needs of the driving conditions of the car, satisfies its comfort mode or safety mode, so as to realize the consideration of the car's ride comfort and driving safety under the condition that the third mass of the suspension is limited, and improve the car's ability to respond to changes in driving conditions. adaptability

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