Hydraulic system for active vibration absorber

Abstract

Comprises a driving assembly and a hydraulic cylinder, wherein the hydraulic cylinder comprises a piston, two chamber bodies which are distributed on the two sides of the piston and a piston rod; the two chamber bodies are correspondingly connected with two normally-on channels; the driving assembly is connected with the two normally-on channels; the system also comprises two flow dividing valves, two flow dividing channels and two energy accumulators, and the two flow dividing valves, the two flow dividing channels and the two energy accumulators correspond to the two chamber bodies; the two energy accumulators are correspondingly connected with the two normally-on channels; the each flow dividing valve communicates with the corresponding chamber body and normally-on channel; the corresponding chamber body and flow-dividing channel are partitioned by using the each flow dividing valve, and the corresponding flow dividing valve communicates with the corresponding chamber body and the corresponding flow dividing channel when being opened when the piston speed in a corresponding piston stroke reaches the certain speed, and the flow dividing channel corresponding to the each flow dividing valve is connected with the normally-on channel corresponding to the other flow dividing valve. According to the hydraulic system disclosed by the invention, the effect of the active vibration absorber can be realized, the hydraulic system has the performance being superior to the performance of a passive vibration absorber when the driving assembly takes effect and can still has the same performance of the passive vibration absorber when the driving assembly cannot take the effect.

Description

technical field [0001] The invention relates to an active shock absorber, in particular to a hydraulic system of the active shock absorber. Background technique [0002] Shock absorbers play an important role in attenuating the vibration of the vehicle body and chassis, which not only improves the handling stability of the vehicle, but also improves the comfort of the passengers in the vehicle. [0003] In the traditional passive shock absorber, since handling stability and comfort are two mutually compromised quantities within a certain range, it is generally adjusted to achieve a widely acceptable effect when the vehicle leaves the factory. However, due to changes in road conditions and the number of passengers in the vehicle, it is difficult to use traditional passive shock absorbers to achieve good results in all situations. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a hydraulic system of an active shoc...

AI Technical Summary

Problems solved by technology

However, due to changes in road conditions and the number of passengers in the vehicle, it is difficult to use traditional passive shock absorbers to achieve good results in all situations.

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