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Independent steering mechanism, steering system and control method

A technology of independent steering and steering wheels, which is applied to steering mechanisms, electric steering mechanisms, fluid steering mechanisms, etc., and can solve problems such as loss of independent steering functions

Active Publication Date: 2022-03-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the independent steering by wire technology, when one of the steering motors respectively configured on the left and right steering wheels fails, it needs to return to the overall steering and lose the independent steering function.

Method used

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  • Independent steering mechanism, steering system and control method
  • Independent steering mechanism, steering system and control method
  • Independent steering mechanism, steering system and control method

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Embodiment Construction

[0073] The technical solution in this application will be described below with reference to the accompanying drawings.

[0074] figure 1 It is a schematic diagram of a traditional car steering.

[0075] like figure 1 As shown, when the car is turning, because the turning radii of the left and right steering wheels are different, the steering angles of the left and right steering wheels are different. The steering mechanism is designed according to the Ackermann steering geometry. When the car turns along the curve, the equal cranks of the four links are used, that is, as figure 1 The steering trapezoid shown can make the steering angle of the inner wheel larger than the steering angle of the outer wheel by 2 to 4 degrees. This structure makes the center of circle of the four wheel steering paths of the car roughly intersect on the extension line of the rear axle, so that the car can turn smoothly.

[0076] The traditional automobile steering system is a mechanical system, ...

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PUM

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Abstract

The embodiment of the invention provides an independent steering mechanism, a steering system and a control method, the independent steering mechanism can comprise a first power-assisted motor, a second power-assisted motor, a third power-assisted motor and a middle tie rod, and the middle tie rod comprises a first connecting rod, a second connecting rod and a third connecting rod. The length and the position of the middle transverse pull rod are adjusted through the three power-assisted motors connected with the first connecting rod, the second connecting rod and the third connecting rod correspondingly, and the two steering wheels connected with the first connecting rod and the second connecting rod can achieve independent steering. Moreover, when one of the three power-assisted motors breaks down, the length and the position of the middle tie rod can still be adjusted through the two power-assisted motors which work normally under the condition that the mechanical structure is not changed.

Description

technical field [0001] The present application relates to the field of automobiles, and more particularly, to independent steering mechanisms, steering systems and control methods in automobiles. Background technique [0002] When the car is turning, because the turning radii of the left and right steering wheels are different, the steering angles of the left and right steering wheels are different. The steering mechanism is designed according to Ackerman's steering geometry, so that the steering angle of the inner wheel is 2 to 4 degrees larger than that of the outer wheel when the car turns, so that the car can turn smoothly. [0003] In order to realize a more flexible steering function of the car, the steer-by-wire technology can be applied to the steering system of the car. The traditional automobile steering system is a mechanical system, and the steering movement of the automobile is realized by the driver manipulating the steering wheel, which is transmitted to the ...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D7/20
CPCB62D5/0457B62D7/20B62D5/04B62D7/1509B62D7/09B62D5/0484B62D5/0487B62D6/002
Inventor 刘峰宇李杰王兴黄鑫
Owner HUAWEI TECH CO LTD
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