Device and method for adjusting vehicle height based on hydro-pneumatic spring

Abstract

The invention provides a device and a method for adjusting the vehicle height based on a hydro-pneumatic spring, belonging to the field of adjustment of the characteristics of a spring or a vibration damper and adjustment of the distance between a vehicle support surface and a spring suspension frame part. The device can be used for optionally adjusting the vehicle height in a set range, and contributes to remarkably improving the severe road surface passing performance, traveling stability, air drop and air transport adaptability and landmine protection performance of a vehicle. The adjusting device comprises the hydro-pneumatic spring, an upper transverse arm, a lower transverse arm, an upper limit, a lower limit, a locking valve, an oil filling / discharging valve, an oil tank and a high-pressure oil pump. The vehicle height is optionally adjusted by quantitatively filling high-pressure oil into the hydro-pneumatic spring. The adjusting device is used without changing the existing vehicle structure and influencing the vehicle performance, has low cost, is convenient for installing and adjusting the vehicle height, and has reliable safety performance.

Description

technical field [0001] The invention belongs to the field of adjusting the characteristics of springs or shock absorbers, and adjusting the distance between a vehicle support surface and a spring suspension part, and in particular relates to a vehicle height adjustment device and method based on an oil-gas spring. Background technique [0002] A typical wheeled vehicle running device is composed of wheels, a suspension system guide mechanism, elastic elements, damping elements and suspension upper and lower limit devices. For motor vehicles equipped with ordinary suspension systems, the height of the vehicle body cannot be adjusted according to the load change. Therefore, the large-scale and frequent changes in the vehicle load will aggravate tire wear and increase tire rolling resistance. At the same time, changes in vehicle body posture It will increase the air resistance, affect the stability of vehicle operation, and increase fuel consumption; the change of vehicle body ...

AI Technical Summary

Problems solved by technology

[0014] The object of the present invention is to provide a vehicle height adjustment system and a simple and easy vehicle height adjustment method. The device uses a general vehicle suspension system to adjust the vehicle height based on the characteristics of oil and gas springs, without changing the existing vehicle On the premise of not affecting vehicle performance, it solves the problem that the vehicle height adjustment device cannot adjust the vehicle height arbitrarily. The method can realize the arbitrary adjustment of vehicle height within the set range. , airdrop and airlift adaptability and mine protection performance have all been significantly improved

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