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Air suspension control method with multi-layer additional air chambers for hub-driven electric vehicles

A technology of adding air chambers and air suspensions, applied to suspensions, elastic suspensions, vehicle components, etc., can solve problems such as single structure and difficulty in achieving suspension performance

Active Publication Date: 2021-12-31
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary air suspension also has limitations such as single structure and difficulty in controlling suspension performance.

Method used

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  • Air suspension control method with multi-layer additional air chambers for hub-driven electric vehicles
  • Air suspension control method with multi-layer additional air chambers for hub-driven electric vehicles
  • Air suspension control method with multi-layer additional air chambers for hub-driven electric vehicles

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Embodiment Construction

[0024]The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] figure 1 and figure 2 Shown is an air suspension system with multi-layer additional air chambers for a hub-driven electric vehicle, image 3 A flow chart of the suspension system control method is shown. In this embodiment, an air suspension system with multi-layered additional air chambers for hub-driven electric vehicles is provided, wherein the number of layers of the multi-layered additional air chambers is preferably three. The air suspension system mainly includes four air springs with multi-layered additional air chambers in two groups of front suspension system 1 and rear suspension system 2 . Each air spring includes a main air chamber 6 and an additional air chamber 11, wherein the main air chamber 6 is a membrane-type flexible rubber airbag structure, which belongs to the bearing part of the spring, and its lower end pist...

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Abstract

A method for controlling an air suspension with multi-layer additional air chambers for a hub-driven electric vehicle, wherein the air suspension system with multi-layer additional air chambers includes two groups of front suspension systems and rear suspension systems, a total of four with multi-layer Air springs with additional air chambers; each group of air springs contains two air chambers, one main air chamber and one 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 The additional air chambers are connected by gas pipes, and a throttling orifice with adjustable aperture is set on the gas pipe; through the control of the aperture of the throttling orifice and the combination of the opening and closing states of the switch valves in the multi-layer additional air chambers, it can realize Changes in air spring stiffness and damping, the central controller performs vehicle suspension dynamics control, including vehicle height control, by calculating the optimal combination of opening and closing states of the additional air chamber switching valve and the diameter of the throttle damping hole required under different operating conditions , ride control, roll control and pitch control.

Description

technical field [0001] The invention mainly relates to the field of air suspension control, in particular to an air suspension control method with multi-layer additional air chambers for a hub-driven electric vehicle. 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, because the drive system is installed at the wheel hub, it not only takes up a lot of space but also increases the unsprung mass significantly, resulting in poor ride comfort of the vehicle, which is specifically manifested in the anti-pitch and anti-roll characteristics of the vehicle when it is impacted by uneven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/052B60G17/019
CPCB60G17/019B60G17/0521B60G17/0528B60G2800/91B60G2800/20
Inventor 张志勇王建波黄彩霞伍文广蒋理刘振
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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