A single-tube hydraulic shock absorber with a highly adaptive system and method thereof

Abstract

The invention provides a single barrel-type hydraulic damper with a height self-adaptive system and a method thereof. The single barrel-type hydraulic damper comprises a single cylinder-type hydraulic-damping system and a height self-adaptive system. The single cylinder-type hydraulic-damping system comprises a piston cylinder, a piston head, a piston rod, springs, an air cylinder barrel, an air bag and the like. The height self-adaptive system comprises an air source control system, an electromagnetic exhaust valve, an electromagnetic air valve, a pressure compensating valve, an energy accumulator, a control center and the like. The air bag is integrated at the end part of the damper and connected with the height self-adaptive system. The energy accumulator, a check valve and the pressure compensating valve in the height self-adaptive system are connected in parallel to form an independent pressure self-balancing unit, thereby providing a good ground-gripping capability for the damper. During damping, oil liquid gradually attenuates the amplitude of a piston through a damping hole of the piston head; through car speed and up-down vibration acceleration of a car body, inflation and exhaust of the air bag can be controlled so that self-adaptive adjustments can be made to heights. The single barrel-type hydraulic damper is simple and reliable in structure, and is cost-effective and eco-friendly and easy for popularization.

Description

technical field [0001] The invention belongs to the research field of hydraulic shock absorbers for automobiles, and in particular relates to a single-tube hydraulic shock absorber with a highly self-adaptive system and a method thereof. Background technique [0002] The automobile shock absorber is an important part of the automobile suspension. It is a key component to slow down and absorb the vibration and shock during the driving process of the automobile and obtain the smoothness of the automobile. The current shock absorber mainly plays the role of attenuating the vibration of the vehicle body and improving the driving stability. The spring reaction force is used to ensure the gripping ability of the wheel, which cannot satisfy the function of the height of the center of gravity of the vehicle frame at different speeds. It is prone to rollover when turning and nodding when braking, which poses certain dangers to driving. [0003] So far, the Chinese patent with the ap...

AI Technical Summary

Problems solved by technology

The current shock absorber mainly plays the role of attenuating the vibration of the vehicle body and improving the driving stability. The spring reaction force is used to ensure the gripping ability of the wheel, which cannot satisfy the function of the height of the center of gravity of the vehicle frame at different speeds. It is prone to rollover when turning and nodding when braking, which poses a certain danger to driving

[0003] So far, the Chinese patent with the application number CN105196825A proposes an automotive mechanical air suspension height control system, which mainly includes an oil storage tank and a height valve. This patent mainly realizes the control of the vehicle body height within a certain range through a mechanical linkage , the structure is simple but its control accuracy is not high; the Chinese patent application No. 200610051904.2 proposes a shock absorber with an automatic balance height, which mainly includes a cylinder body, a cylinder cavity and a piston. This patent mainly uses a balance spring to reduce the center of gravity of the vehicle. To obtain the stability of the motor vehicle, but the above-mentioned suspension valve mechanism is prone to jamming, resulting in unsmooth movement of the oil circuit

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