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Vehicle and rear wheel steering control system and method thereof

A rear-wheel steering and control system technology, applied in the field of vehicles, can solve the problems of increasing the safety hazards of emergency steering at medium and high speeds, and not controlling the rear-wheel steering well, so as to improve the ability of the vehicle to quickly and emergency turn and maintain the vehicle body Effect of stability, ability to lift

Active Publication Date: 2018-05-11
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing problem is that the steering state of the rear wheels is not well controlled during the steering process at medium and high speeds, which increases the safety hazard of emergency steering at medium and high speeds.

Method used

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  • Vehicle and rear wheel steering control system and method thereof
  • Vehicle and rear wheel steering control system and method thereof
  • Vehicle and rear wheel steering control system and method thereof

Examples

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Embodiment Construction

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0019] The rear wheel steering control system of the vehicle, the vehicle with the system and the rear wheel steering control method of the vehicle proposed by the embodiments of the present invention are described below with reference to the accompanying drawings.

[0020] figure 1 is a schematic block diagram of a rear wheel steering control system for a vehicle according to an embodiment of the present invention. Such as figure 1 As shown, the rear wheel steering control system of the vehicle includes: a first rear wheel 11 ...

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PUM

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Abstract

The invention discloses a vehicle and a rear wheel steering control system and method thereof. The rear wheel steering control system comprises a first rear wheel, a second rear wheel, a rear wheel steering device, a detecting module and a motor controller; the rear wheel steering device comprises a first motor, a second motor, a first steering gear and a second steering gear, the first motor drives the first rear wheel to rotate in the first preset range through the first steering gear, and the second motor drives the second rear wheel to rotate in the second preset range through the second steering gear; the detecting module is used for detecting the state parameters of the vehicle; the motor controller is connected with the detecting module, the first motor and the second motor, the motor controller is used for controlling the first motor and the second motor according to the state parameters of the vehicle and correspondingly controlling steering of the first rear wheel and the second rear wheel through the first steering gear and the second steering gear, thus steering of the rear wheels can be precisely controlled in a small range, vehicle tail whip or out of control can be resisted in the higher strength, stability of medium-high-speed running of the vehicle is enhanced, and the rapid emergency turning capability of the vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle rear wheel steering control system, a vehicle with the system and a vehicle rear wheel steering control method. Background technique [0002] The related art proposes a steering control method for an electric vehicle, which takes the rear wheel steering as one of the main steering, greatly increases the role of the rear wheels in the steering process of the vehicle, and enhances the flexibility of low-speed steering. However, the existing problem is that the rear wheel steering state is not well controlled during the steering process at medium and high speeds, which increases the potential safety hazard of emergency steering at medium and high speeds. [0003] Therefore, related technologies need to be improved. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D101/00B62D103/00
CPCB62D5/0421B62D5/046B62D6/00
Inventor 李军刘永胜张惠林
Owner BYD CO LTD
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