Interlinked air suspension control device, system and method

Abstract

The invention discloses an interlinked air suspension control device, system and method. The pinterlinked air suspension control device comprises an air suspension system, air spring shock absorbers and the interlinked air suspension control system. Each air spring shock absorber comprises a lifting lug, a lower lifting lug, rubber capsule skin, an air spring cavity, an upper air spring shock absorber cavity, a lower air spring shock absorber cavity, a piston, a first one-way valve and a shock absorber outer wall, wherein the lifting lug is connected to the upper portion of the air spring cavity, the rubber capsule skin is arranged on the periphery of the air spring cavity, the upper air spring shock absorber cavity is located on the lower portion of the air spring cavity, the one-way valve is located on the piston, and the lower air spring shock absorber cavity is located below the piston. According to the interlinked air suspension control device, system and method, the semi-active suspension technology is introduced into the interlinked air suspension technology, the effects of adjusting the vehicle sidesway characteristic and the vehicle pitching characteristic can be achieved by greatly improving the optional interlinked mode of interlinked air suspensions, and thus the riding comfort of a vehicle can be further improved while the performance of steering, starting and braking of the vehicle is met.

Description

technical field [0001] The invention relates to the field of vehicle suspension, in particular to an interconnected air suspension control device, a control system and a method thereof. Background technique [0002] In passive suspension technology, in order to improve the anti-roll performance of the vehicle, it is often obtained by increasing the stiffness of the suspension or installing a stabilizer bar; in order to improve the pitch of the vehicle when starting and braking, it is often used to increase the stiffness of the suspension The higher suspension stiffness will undoubtedly make the suspension stiffer, which will damage the ride comfort of the vehicle. Conversely, if a suspension with low roll stiffness and pitch stiffness is used, the riding comfort can be improved, but the driving safety of the vehicle under turning and braking conditions cannot be guaranteed. [0003] Therefore, active and semi-active suspension technologies are more and more applied to the p...

AI Technical Summary

Problems solved by technology

At present, the active stabilizer bar technology is widely used. By adding a motor to the stabilizer bar, the roll stiffness of the stabilizer bar can be changed in real time to adjust the roll characteristics of the vehicle. However, this structure has high process costs and damages the suspension. The robustness of the suspension system; Guo Konghui of Jilin University and others in the literature "Modeling and Simulation Research of Oil-gas Coupled Suspension System" connected the left and right of the oil-gas spring, and adjusted the roll stiffness by controlling the interconnection mode switch. Li Zhongxing of Jiangsu University proposed in the paper "Interlinked air suspension systems: the influence on ride comfort in testing and simulation" that the air springs of the air suspension be laterally interconnected, and the connection and disconnection of the air springs are controlled by controlling the solenoid valves between the air springs. , but the control variables of the above two methods are relatively single, and only involve the interconnection state control of the elastic elements, no attempt has been made to control the interconnection state of the damping elements, the improvement of the overall performance of the vehicle is limited, and the adjustment of the pitching characteristics of the vehicle has not been considered.

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