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An Explanation for Brake Groan Based on Coupled Brake-Driveline System Analysis
Technical Paper
2007-01-2260
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Brake creep-groan is studied via a friction coupled torsional model consisting of driveline and brake sub-systems. The model captures the main torsional modes of interest while a suitable reduction of higher degree-of-freedom models allows selection of appropriate parameters. Numerical simulations are programmed that capture groan response with stick-slip friction and transient brake pressure. The vehicle is initially at rest and the groan may build into a steady state limit cycle, depending on the brake force actuation. For automatic transmission (AT) the driving torque is at the torque converter. For manual transmission (MT) the vehicle is on a slope and the driving torque is due to weight of the vehicle. On-vehicle tests provide time and frequency domain measured accelerations for comparison.
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Citation
Crowther, A., Yoon, J., and Singh, R., "An Explanation for Brake Groan Based on Coupled Brake-Driveline System Analysis," SAE Technical Paper 2007-01-2260, 2007, https://doi.org/10.4271/2007-01-2260.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
- Brecht J. Hoffrichter W. Dohle A. ‘Mechanisms of Brake Creep-groan’ SAE Technical Paper 973026 SAE 1997
- Jang H. Lee J.S. Flash J.W. ‘Compositional Effects of the Brake Friction Material on Creep-groan Phenomenon’ Wear 251 2001 1477 1483
- Martins, J.A.C. Oden J.T. Simoes, F.M.F. ‘Recent Advances in Engineering Science - A Study of Static and Kinetic Friction’ International Journal of Engineering Science 28 1 1990 29 92
- Crowther A.R. Singh R. ‘Analytical Investigation of Stick-Slip Motions in Coupled Brake-Driveline Systems’ Journal of Non-Linear Dynamics October 2006
- Bogacki P. Shampine L.F. ‘A 3(2) Pair of Runge-Kutta Formulas’ Applied Mathematics Letters 2 1989 1 9
- Crowther A.R Singh R. ‘Identification and Quantification of Stick-Slip Induced Brake Groan Events Using Experimental and Analytical Investigations’ Noise Control Engineering Journal