Power generation device for energy-regenerative shock absorber

Abstract

The invention discloses a power generation device for an energy-regenerative shock absorber. The power generation device is composed of a hydraulic system and a power generation system, wherein one end of a first high-pressure oil pipe of the hydraulic system is connected with an upper oil chamber of the energy-regenerative shock absorber, and one end of a second high-pressure oil pipe of the hydraulic system is connected with a lower oil chamber of the energy-regenerative shock absorber, so that the cyclic pressure oil flow power generation can be realized; a gas chamber of an oil-gas separation pressure balance type energy storage device of the hydraulic system is communicated with a gas bag at the bottom part of a cylinder barrel, so that the gas bag is timely elastically deformed, and the size of the gas bag is increased or reduced, therefore the problem of unequal volume change of an upper chamber and a lower chamber of the cylinder barrel under the condition that a piston slides is solved; a control device of the power generation device properly delays the start time of related electromagnetic check valves according to pressure jump feedback acquired by a first pressure sensor and a second pressure sensor, so that the damping stiffness of a shock absorber can be self-adaptively adjusted along with road condition changes, and the frequency and amplitude of vibration between a vehicle frame and a vehicle axle are reduced, therefore the vehicle frame is effectively prevented from being damaged.

Description

technical field [0001] The invention relates to the field of shock absorbers, in particular to a power generation device for an energy-feeding shock absorber. Background technique [0002] Existing shock absorbers used on heavy engineering vehicles have the problem that the damping stiffness of the shock absorber cannot be adjusted with the road conditions in terms of shock absorption performance, which causes frequent and severe relative movements between the frame and the axle, which not only reduces the suspension The service life of the frame, and the energy generated by the vibration is dissipated as waste heat, which causes unnecessary energy loss while causing damage to the suspension. Contents of the invention [0003] The object of the present invention is to provide a power generation device for an energy-feeding shock absorber. [0004] The present invention is composed of a hydraulic system and a power generation system. The hydraulic system is composed of a h...

AI Technical Summary

Problems solved by technology

[0002] Existing shock absorbers used on heavy engineering vehicles have the problem that the damping stiffness of the shock absorber cannot be adjusted with the road conditions in terms of shock absorption performance, which causes frequent and severe relative movements between the frame and the axle, which not only reduces the suspension The service life of the frame, and the energy generated by the vibration is dissipated as waste heat, causing damage to the suspension and causing unnecessary energy loss

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