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A Method of Obtaining Variable Toe-in Curve of Wheel

A technology of toe-in and curve, applied in the field of automobile chassis performance test, to achieve the effect of easy installation and disassembly, saving test time and increasing the adjustable range

Active Publication Date: 2017-11-07
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • A Method of Obtaining Variable Toe-in Curve of Wheel
  • A Method of Obtaining Variable Toe-in Curve of Wheel
  • A Method of Obtaining Variable Toe-in Curve of Wheel

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0018] see figure 2 or image 3 As shown, a method for obtaining the variable toe curve of a wheel, the steering knuckle sample used in this method includes a steering knuckle arm 4, a steering tie rod 5, a bolt 6 connecting the steering knuckle arm and the steering tie rod, and the steering knuckle arm 4 Bolt hole 7 on the top is oval; The method comprises the following steps:

[0019] The first step is to measure the basic static parameters of the four-wheel alignment: first adjust the connection position of the steering knuckle arm 4 and the steering tie rod 5 to the upper end of the bolt hole 7, and lock the steering knuckle arm 4 and the steering tie rod 5, as figure 2 As shown, then install it on the vehicle, and...

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Abstract

The invention relates to a method for obtaining a variable toe-in curve of wheels. The method comprises the steps that 1) basic static parameters of four-wheel alignment are measured; 2) KC test is carried out to obtain a first toe-in curve; 3) KC test is carried out to obtain a second toe-in curve; 4) KC test is carried out to obtain a random toe-in curve of an area between the first toe-in curve and the second toe-in curve; and 5) a relatively ideal toe-in curve is determined. Test time can be saved, use is convenient, mounting and dismounting are easy, the adjustable range is large, the cost is low, and the relative ideal toe-in curve can obtained conveniently and rapidly.

Description

technical field [0001] The invention belongs to performance tests of automobile chassis, in particular to a method for obtaining variable toe-in curves of wheels. Background technique [0002] The toe-in curve refers to the change curve of the toe-in angle of the wheel during the up-and-down beating process of the wheel center of the car. This curve indicates the relationship between the up-down beating stroke of the wheel center and the toe-in angle. The toe-in curve directly affects the handling stability and comfort of the vehicle. At the same time, the toe-in curve also affects the driving characteristics of the vehicle in curves, especially the understeer and yaw response of the vehicle, making it difficult for the driver to drive the vehicle easily. The toe-in curve of an ordinary prototype car is difficult to adjust through chassis-related components, and in the process of automobile chassis performance testing, it is often necessary to conduct a large number of tests...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/013
CPCG01M17/013
Inventor 马立发尹刚李敏
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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