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Type: Report
Title: Brake testing: what faults can be found? An investigation of the ability of various brake testing methods to detect mechanical or hydraulic brake faults on light vehicles
Author: Mackenzie, J.
van den Berg, A.
Elsegood, M.
Publisher: Centre for Automotive Safety Research
Publisher Place: Adelaide, Australia
Issue Date: 2020
Series/Report no.: CASR research reports; 173
ISBN: 9781925971064
ISSN: 1449-2237
Assignee: SafeTstop
Statement of
JRR Mackenzie, AL van den Berg, ME Elsegood
Abstract: Brakes can be considered the most important safety feature on a vehicle and must be maintained to ensure optimal performance. Brake testing machines provide a rapid method of investigating the performance of a vehicle’s brakes and assessing whether they meet roadworthiness criteria. However, it is important for vehicle owners and roads authorities to understand the differences between brake testing methods, their advantages, their limitations, and to have confidence in the results they provide. This study presents an investigation of the ability of four brake testing methods to detect mechanical or hydraulic faults on light vehicles. A test vehicle, representative of a common passenger vehicle, was professionally fitted with equipment to enable the control and measurement of the brake pressure applied to individual wheels. A brake pedal robot that could supply a repeatable and consistent brake application force was also installed. Data was collected during a series of tests performed over two days at a private airstrip. In each test, a brake fault condition in the test vehicle was simulated by reducing the maximum brake pressures at individual wheels. The vehicle was then tested three times with a plate brake tester, a roller brake tester, a portable decelerometer, and during a high-speed stopping distance test (from 80 km/h).
Keywords: Brake testing; Roller brake tester; Plate brake tester; Decelerometer; Brake fault; Brake testing; Stopping distance; SafeTstop
Rights: © The University of Adelaide 2020
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Appears in Collections:Aurora harvest 4
Centre for Automotive Safety Research reports

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