A hub-driven electric vehicle air suspension system with multi-layer additional air chambers

Abstract

A wheel hub-driven electric vehicle air suspension system with multi-layer additional air chambers, mainly including four air springs with multi-layer additional air chambers in two groups including front suspension system and rear suspension system; each air spring contains A main air chamber and an additional air chamber; the main air chamber is a membrane-type flexible rubber airbag structure, and the additional air chamber is a rigid multi-layer structure; the main air chamber and the additional air chamber are connected by a gas pipeline, and an aperture is set on the gas pipeline Adjustable throttling orifice; the controller of each air spring can independently control the throttling orifice and switch valve at the same time; each air spring is equipped with a sensor for measuring the displacement of the piston, and the displacement sensor is connected to the central controller; The controller is respectively connected with the controller of each air spring. The central controller can keep the suspension performance of the vehicle in an ideal state under different working conditions and road conditions through the combination of the opening and closing state of the additional air chamber switch valve and the control of the throttle orifice aperture.

Description

technical field [0001] The invention mainly relates to the field of air suspension, in particular to an air suspension system of a hub-driven electric vehicle with multi-layered additional air chambers. Background technique [0002] With the development of the automobile industry, various new vehicles with the theme of energy conservation and environmental protection have become a hot field in the automobile industry. Electric vehicles driven by in-wheel motors have attracted widespread attention as a representative new energy vehicle. The distributed power structure and energy-saving power sources greatly reduce vehicle energy consumption. However, since the drive system is installed at the hub, it not only takes up a lot of space but also increases the unsprung mass significantly, resulting in poor comfort of the vehicle, which is an inherent defect of the electric vehicle driven by the hub motor. Therefore, in order to improve the comfort of the vehicle, there are higher...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a wheel hub with multi-layer additional air chambers with high comfort, strong applicability and adjustable performance parameters for the defect that the comfort of wheel-drive electric vehicles is worse than that of ordinary vehicles. Driving Electric Vehicle Air Suspension Systems

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