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Drive-by-wire four-wheel independent steering system with steering motor mounted on Macpherson suspension lower swinging arm

A four-wheel independent steering and steering motor technology, which is applied in steering mechanisms, electric steering mechanisms, power steering mechanisms, etc., to achieve the effects of flexible implementation, short transmission chain and high efficiency

Active Publication Date: 2017-05-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing independent steering by wire technology often adopts simple suspension forms such as candle suspension, and it is difficult to take into account the kinematic performance of the suspension while realizing independent steering

Method used

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  • Drive-by-wire four-wheel independent steering system with steering motor mounted on Macpherson suspension lower swinging arm
  • Drive-by-wire four-wheel independent steering system with steering motor mounted on Macpherson suspension lower swinging arm

Examples

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0026] Such as figure 1 Shown is the four-wheel independent steering system by wire in which the steering motor provided in this embodiment is located at the lower swing arm of the McPherson suspension, including the vehicle frame, wheels, suspension and steering motor assembly, and the suspension is connected to the wheels and the steering motor respectively. The frame is connected, and the suspension is MacPherson suspension including the lower swing arm, the steering knuckle and the spring damper, and the lower swing arm and the spring damper are respectively connected with the fra...

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Abstract

The invention relates to a drive-by-wire four-wheel independent steering system with a steering motor mounted on a Macpherson suspension lower swinging arm. The drive-by-wire four-wheel independent steering system comprises a frame, wheels, a suspension rack and a steering motor assembly, wherein the suspension rack is respectively connected with the wheels and the frame; the suspension rack has a lower swinging arm, a knuckle and a Macpherson suspension rack of a spring damper; the lower swinging arm and the spring damper are both connected with the frame and the knuckle; the knuckle is connected with the wheels; the steering motor assembly is fixed on the lower swinging arm and connected with the knuckle via a universal transmission device to drive the knuckle to rotate along a main pin axis. Compared with the prior art, the drive-by-wire four-wheel independent steering system with the steering motor mounted on the Macpherson suspension lower swinging arm is advantaged by high system integration degree, great modularization and flexible steering as well as wide steering range.

Description

technical field [0001] The invention relates to the field of electric vehicle chassis and steering, in particular to a wire-controlled four-wheel independent steering system in which a steering motor is located at the lower swing arm of a MacPherson suspension. Background technique [0002] The traditional vehicle steering system ensures that there is a certain functional relationship between the inner and outer wheel angles during steering through the steering trapezoidal mechanism, which approximately satisfies the Ackermann steering law. However, due to the existence of the steering trapezoid, it will inevitably cause the movement interference of the suspension guide mechanism and the steering rod system when the wheels jump up and down, and it is impossible to realize the steering at a large angle. The four-wheel independent steering by wire technology cancels the traditional trapezoidal steering mechanism, which fundamentally solves this problem. The four-wheel-by-wire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D7/14
CPCB62D5/0418B62D7/146
Inventor 卓桂荣陈辛波王威张立军王心坚孟德建余卓平
Owner TONGJI UNIV
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