Self-energized active suspension single-head oil cylinder equal-damping equal-inerter oil way and working method thereof

Abstract

The invention discloses an equal-damping equal-inerter oil way of a single-head oil cylinder of a self-powered active suspension and a working method of the equal-damping equal-inerter oil way in the field of automobiles, and the equal-damping equal-inerter oil way is composed of a traditional vibration reduction oil way and an anti-resonance vibration reduction oil way, and the traditional vibration reduction oil way is connected between a piston rod cavity and a rodless cavity of a first oil cylinder in series; a first damping tube, a first oil gas storage chamber and a second damping tube are sequentially connected between a rodless cavity and a piston rod cavity of the first oil cylinder; a third one-way valve is connected in parallel between two ends of the second damping tube; an anti-resonance vibration reduction oil way is connected between a piston rod cavity and a rodless cavity of a second oil cylinder in series, a second inerter spiral pipe, a second oil gas storage chamber, a first inerter spiral pipe and an electromagnetic valve are sequentially connected between the piston rod cavity and the rodless cavity of the second oil cylinder, and the two ends, connected with the second oil gas storage chamber in series, of the second inerter spiral pipe are connected with an eighth one-way valve in parallel. And third damping pipes are connected in parallel to the two ends of the electromagnetic valve. The anti-resonance vibration reduction structure can maintain damping stability provided by a traditional vibration reduction structure, and can maintain inerter stability provided by the anti-resonance vibration reduction structure at the same time.

Description

technical field [0001] The invention belongs to the field of automobiles, and relates to a suspension applied to automobiles, in particular to the oil circuit of a self-powered active suspension using a single-head oil cylinder, which can effectively maintain the comfort of automobile riding and improve the stability of driving safety during operation. . Background technique [0002] The self-powered active suspension adopts the traditional damping structure, the third mass of the suspension and the anti-resonance damping structure connected in series from bottom to top, which is different from the passive suspension, semi-active suspension and Compared with active suspension, it can effectively dampen the high-frequency vibration of the vehicle body, and is especially suitable for driving conditions where the high-frequency components of road surface roughness account for a high proportion. Due to the limited installation space, the third mass of the suspension cannot be a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing self-powered active suspension uses a single-head oil cylinder, which causes large changes in the inertia of the traditional damping structure and the anti-resonance damping structure during work, which brings about insufficient improvement in the ride comfort and driving safety of the car.

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