Abstract

Vehicles that are not roadworthy are very dangerous for the safety of passengers and other road users. One of the technical requirements for roadworthiness is the front wheel ring condition, which greatly affects the safety of the motorized vehicle. The front wheel pins ensure the vehicle can move in a straight line, which is related to the safety of the steering system and affects fuel efficiency. The front wheel valve inspection is carried out with a front wheel blade test tool known as the Side Slip Tester through periodic testing at the motor vehicle testing center belonging to the Transportation Service. Previously, a lot of vehicle test equipment at several test centers was not feasible and was no longer accurate. In this work, the design of a smart system for testing wheel blades on vehicles with the addition of an exponential filter to refine and reduce noise in sensor readings of ADC signals is proposed. Tests and calibrations were carried out by comparing the readings of the tool that has been made with a calibrated dial indicator. From the results of the exponential filter test, the best weight for the ADC reading filter is 0.2 because from the graph it can be seen that the response to the input signal is fast and, for noise filtering, it is very good. The calibration of the tool results in the maximum error result of 3% on the 9-mm side slip bench shear test. The proposed method is more accurate than the estimated sideslip calculation, the conventional sideslip angle measurement in a range of 10 to 130 degrees with a 10% error rate.