Sensing steering axis inclination and camber with an accelerometer

An accelerometer and acceleration technology, applied in the field of wheel alignment systems, can solve the problems of large sensors, damage accuracy, and high cost
CN1768246AActive Publication Date: 2006-05-03SNAP ON INC (US)
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SNAP ON INC (US)
Publication Date
2006-05-03

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Abstract

Method and apparatus for measuring and calculating wheel alignment angles. During the alignment process, lightweight and mechanically robust accelerometers in the measuring head are attached to the wheels of the vehicle. The output of the accelerometer can be compensated for temperature or thermal hysteresis effects through a memory lookup or a temperature based feedback control loop.
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Description

[0001] related application

[0002] This application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application No. 60 / 459,998, filed April 4, 2003, entitled "Convection Based Accelerometers for Sensing SAI and Camber" , which is hereby incorporated by reference in its entirety. technical field

[0003] The disclosure herein relates to wheel alignment systems, and methods and apparatus for measuring various related parameters. More specifically, the present disclosure relates to the use of lightweight, mechanically robust inclination sensors in wheel alignment systems. Background technique

[0004] Wheel alignment is the process of adjusting the angle of the wheels on a vehicle so that they are generally perpendicular to the ground and parallel to each other. The purpose of this adjustment is to obtain maximum tire life and to ensure that the vehicle goes straight when traveling on a straight and level road.

[0005] In order to adjust the wheel ang...

Claims

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