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A method and device for controlling vehicle straight ahead based on wheel speed

A technology for maintaining control and wheel speed, applied in the field of vehicle dynamics control, can solve the problems of high cost and poor stability, and achieve the effect of low cost, improved stability and simple realization

Active Publication Date: 2020-11-10
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method and device for vehicle straight-going keeping control based on wheel speed to solve the problems of high cost and poor stability in current vehicle straight-going keeping control

Method used

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  • A method and device for controlling vehicle straight ahead based on wheel speed
  • A method and device for controlling vehicle straight ahead based on wheel speed
  • A method and device for controlling vehicle straight ahead based on wheel speed

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Embodiment Construction

[0040] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] The control method of the present invention based on the wheel speed to keep the vehicle going straight, the control method firstly detects the running state of the vehicle, and judges whether the vehicle is in the straight running state; then, when the vehicle is in the straight running state, detects the wheel speed of each wheel of the vehicle, and calculates the left and right wheel speeds Determine the wheel deviation according to the wheel speed difference in the current state and the speed difference in the calibration state; finally judge the vehicle deflection direction according to the wheel deviation, when the vehicle deflects to the left, control the steering wheel to turn right; when the vehicle deflects to the right, control Turn the steering wheel to the left. The procedure of this method is as follows figure 1 As shown,...

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Abstract

The invention relates to a vehicle straight running keeping control method and device based on the wheel rotating speed, and belongs to the technical field of vehicle dynamics control. According to the control method, the rotation speed of all wheels of a front axle and a rear axle of a vehicle are detected under the straight running state of the vehicle, whether the vehicle is deflected or not isdetermined according to the detected rotation speed and the calibrated rotation speed, after the vehicle is deflected, a steering wheel of the vehicle is controlled to rotate in the opposite direction, the running direction of the vehicle is corrected, and straight-running of the vehicle is guaranteed. According to the method, implementation is simple, replacement or adding of hardware is not needed, the cost is low, the neutral calibration is not needed to be performed, and the control stability is improved.

Description

technical field [0001] The invention relates to a control method and device for keeping a vehicle straight ahead based on a wheel speed, and belongs to the technical field of vehicle dynamics control. Background technique [0002] Straight-line driving ability is an indicator of vehicle driving performance. Vehicles with good straight-line driving ability can effectively relieve the driver's operating intensity and improve driving comfort and driving safety. Due to the manufacturing error of the vehicle parts and the installation error of the assembly of the parts, and even the difference in the degree of wear of the left and right parts after the vehicle has been running for a period of time, the stability of the vehicle's straight-line driving will deteriorate. Therefore, how to achieve the straight-line maintenance of the vehicle is a important research directions. At present, the vehicle generally solves the problem of deviation by regularly performing four-wheel alignm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/20B60W30/10B60W40/105
CPCB60W10/20B60W30/10B60W40/105
Inventor 樊金磊刘万备
Owner ZHENGZHOU YUTONG BUS CO LTD
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