A Continuously Adjustable Damping Hydro-pneumatic Suspension

Abstract

The invention relates to the field of oil-gas suspensions, and in particular to an oil-gas suspension with continuously adjustable damping. The oil-gas suspension comprises a power cylinder, a displacement sensor, a first acceleration sensor, a second acceleration sensor, a proportional throttle valve, a pressure accumulator and an industrial personal computer. The power cylinder is connected with the pressure accumulator through the proportional throttle valve with a hydraulic bridge. The hydraulic bridge is composed of four one-way valves. The displacement sensor is arranged on one side of the power cylinder. One end of the displacement sensor is connected with a cylinder barrel of the power cylinder, and the other end of the displacement sensor is connected with a piston rod of the power cylinder. The first acceleration sensor is arranged at the position of an upper hinge point of the power cylinder. The industrial personal computer is connected with the first acceleration sensor, the second acceleration sensor, the displacement sensor and the proportional throttle valve. The power cylinder and the pressure accumulator are used as hydro-pneumatic springs. Hydraulic damping force between the pressure accumulator and the power cylinder is controlled through the proportional throttle valve, and then the continuously adjustable damping of the whole oil-gas suspension can be achieved, so that the riding comfort and controllability of a vehicle are improved.

Description

technical field [0001] The invention relates to the field of oil-pneumatic suspension, in particular to a continuously adjustable damping oil-pneumatic suspension. Background technique [0002] Because the basic parameters of the traditional passive suspension system, such as the spring stiffness and the damping coefficient of the shock absorber, are fixed, it can only guarantee the vibration reduction effect under the design conditions, and cannot be adjusted in real time according to the running state of the vehicle and the road surface conditions. Optimum vibration damping effect. [0003] By changing the spring stiffness or damping coefficient, the purpose of adjusting the performance of the suspension system can be achieved. [0004] Oil-pneumatic suspension is a common structural form of vehicle suspension, and it still belongs to passive suspension. Based on the structural characteristics of the liquid-air series connection of the oil-air suspension system, by adjus...

AI Technical Summary

Problems solved by technology

[0002] Because the basic parameters of the traditional passive suspension system, such as the spring stiffness and the damping coefficient of the shock absorber, are fixed, it can only guarantee the vibration reduction effect under the design conditions, and cannot be adjusted in real time according to the running state of the vehicle and the road surface conditions. optimal vibration damping effect

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