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Multi-axle automobile multi-phase steering control strategy

A steering control and automotive technology, applied in steering mechanisms, steering rods, electric steering mechanisms, etc., can solve the problems of large slippage and wear of tires, increase driving resistance and fuel consumption, etc., to reduce slippage, reduce driving resistance, Avoid the effect of misuse

Inactive Publication Date: 2012-06-27
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when a multi-axle vehicle is running, only part of the wheels can be turned, which causes a lot of slippage and wear of the tires when turning, and increases the driving resistance and fuel consumption. To solve this problem, it is necessary to control the wheels according to the Requires full wheel steering

Method used

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  • Multi-axle automobile multi-phase steering control strategy
  • Multi-axle automobile multi-phase steering control strategy
  • Multi-axle automobile multi-phase steering control strategy

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Embodiment Construction

[0010] The present invention is described in detail as follows in conjunction with accompanying drawing and embodiment:

[0011] The multi-axis automobile multi-phase steering control strategy of the present invention, such as figure 1 , 2 as shown,

[0012] according to figure 1 , 2 And Ackerman's theorem theorems are:

[0013] tan α il = D - Σ j = 1 i - 1 L j R + B / 2 - - - ( 1 )

[0014] tan α ...

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Abstract

The invention belongs to the field of automobiles and particularly relates to the steering control of an automobile with two axles or more than two axles. A steering control strategy is characterized in that the distance D from a steering circle center to the first axle of the automobile, i.e. the virtual axle distance is taken as a control variable, the position of the steering circle center is determined on the basis in combination with the steering angle of a left front wheel, then the steering angles of remaining wheels are determined and therefore the control strategy of a steering system is simplified. By adopting the control strategy, all wheels are ensured to steer around the same circle center, the slippage of the wheels during automobile steering is reduced and the driving resistance is decreased. According to the steering need during automobile running, one steering control switch can be used for steering control to realize switching of multimode steering.

Description

technical field [0001] The invention belongs to the field of automobiles and is suitable for steering control of automobiles with two or more axles. In particular, it relates to a method of using a control switch to change the steering angle and direction of two or more axle wheels of an automobile, thereby reducing the complexity of multi-mode steering operations. Especially suitable for car steering control with multi-axle wheel steering. It ensures that all the steering wheels of the car rotate around the same center of circle to the greatest extent, thereby reducing the slippage and wear of the car tires, and reducing the driving resistance and fuel consumption. Background technique [0002] At present, when a multi-axle vehicle is running, only part of the wheels can be turned, which causes a lot of slippage and wear of the tires when turning, and increases the driving resistance and fuel consumption. To solve this problem, it is necessary to control the wheels accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D15/02B62D7/14
Inventor 张平霞朱永强
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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