Method For Detecting Support Surface Variations During Wheel Alignment Rolling Compensation Procedure

摘要

A method for detecting the occurrence of deviations from level, straight-line rolling movement of a wheel assembly across a supporting surface during a rolling compensation procedure associated with a vehicle wheel alignment measurement or inspection system by identifying changes in measurements or calculated parameters associated with the wheel assembly which would be unchanged during an ideal level and straight-line rolling movement. Identified changes in the measurements or calculated parameters are evaluated to either warn an operator of the occurrence of a deviation, or to generate a correction factor to account for at least a portion of an effect which the deviations introduce into compensation calculations or subsequent wheel alignment measurements or service procedures.

主权项

1. A method for detecting an occurrence of a movement deviation during a rolling movement of a wheel assembly across a supporting surface associated with a rolling compensation procedure of a vehicle service system, comprising:
acquiring data associated with the wheel assembly at a plurality of positions across said supporting surface during the rolling movement; processing said acquired data to obtain a set of values representative of a parameter associated with the wheel assembly in each of said plurality of positions across said supporting surface; evaluating said set of parameter values to identify each value in said set of parameter values which deviated, during said rolling movement, from an expected value by more than an acceptable tolerance in response to a movement deviation by the wheel assembly; and selecting, within a vehicle service procedure, an action in response to said evaluation identifying at least one deviated value.