This paper describes a quarter-car braking test rig that includes a hardware-in-the-loop (HIL) means for emulating broader vehicle dynamic effects. The test rig utilizes actual vehicle components such as the suspension-tire assembly and braking system to accurately represent a vehicle during a braking event and a chassis dynamometer’s drum is used to simulate the longitudinal vehicle dynamics. The key problem addressed in this paper is the emulation of sprung mass motion with a commercial electromagnetic linear actuator. By accurately representing the motion, detailed effects such as load transfer that happens in a real braking process can be studied for its effect on the braking performance. The stability of the system with sprung mass emulation under different actuator control modes is analyzed. The successful and stable control scheme found is a cascaded control with a velocity tracking strategy. The workings of the test are illustrated via representative test results that include a locked-wheel braking event and a stop with an anti-lock braking system (ABS).
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5710-6
PROCEEDINGS PAPER
Sprung Mass Motion Emulation in a Braking Test Rig
Chunjian Wang,
Chunjian Wang
Clemson University, Greenville, SC
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Jeffery Anderson,
Jeffery Anderson
Clemson University, Greenville, SC
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Beshah Ayalew
Beshah Ayalew
Clemson University, Greenville, SC
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Chunjian Wang
Clemson University, Greenville, SC
Qian Wang
Clemson University, Greenville, SC
Jeffery Anderson
Clemson University, Greenville, SC
Beshah Ayalew
Clemson University, Greenville, SC
Paper No:
DETC2015-47691, V003T01A017; 7 pages
Published Online:
January 19, 2016
Citation
Wang, C, Wang, Q, Anderson, J, & Ayalew, B. "Sprung Mass Motion Emulation in a Braking Test Rig." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 3: 17th International Conference on Advanced Vehicle Technologies; 12th International Conference on Design Education; 8th Frontiers in Biomedical Devices. Boston, Massachusetts, USA. August 2–5, 2015. V003T01A017. ASME. https://doi.org/10.1115/DETC2015-47691
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