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Brake System Thermal Performance for Brazil Market Battery Electric Vehicles
Technical Paper
2019-36-0019
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The discussion in the braking industry that has been ongoing for over a decade now on how to specify brake systems for regenerative-brake intensive vehicle applications has intensified considerably in the past few years as the automotive industry ponders a future where electric vehicles become predominant. Major automotive manufactures have announced plans to create dedicated electric-only vehicle architectures, from which to offer a full range of electric vehicle configurations. The time to really figure out the translation of Voice of the Electric Vehicle Customer to technical requirements and brake system content is approaching very rapidly. One of the major design decisions in the brake system is the sizing of foundation brake components for thermal performance. There is no question that regenerative brakes can significantly reduce the demand on the friction brakes in normal usage, sometimes by a full order of magnitude or more. Brakes no longer need to be sized for everyday use, rather, the sizing is driven by “limit cases” such as failure of the regen system, a full state of charge in the battery at high elevation, or conditions of “de-rating” of regenerative braking due to drive motor and/or battery operating conditions including temperature. The present work takes an in-depth look at real world vehicle operating conditions that can drive high thermal loads to the brakes and proposes requirements and methodology for relating this to brake hardware selection. The methodology is illustrated through case studies and analysis, showing how brake temperatures are affected by changing from an internal combustion to an electric drive, and further showing how factors such as initial battery state of charge can have a significant effect on the brake temperatures.
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Citation
Antanaitis, D., "Brake System Thermal Performance for Brazil Market Battery Electric Vehicles," SAE Technical Paper 2019-36-0019, 2020, https://doi.org/10.4271/2019-36-0019.Data Sets - Support Documents
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References
- Noyes, R. and Vickers, P., “Prediction of Surface Temperatures in Passenger Car Disc Brakes”, SAE Technical Paper 690457, 1969, https://doi.org/10.4271/690457.
- Burgess, I. “Brake Fluid Temperatures Obtained in Alpine Vehicle Trials”, SAE Technical Paper 740126, 1974, https://doi.org/10.4271/740126.
- Hall, T. , "A Comparison of Braking Behavior between an IC Engine and Pure Electric Vehicle in Los Angeles City Driving Conditions," SAE Technical Paper 2017-01-2518, 2017, https://doi.org/10.4271/2017-01-2518.
- Antanaitis, D. , "Effect of Regenerative Braking on Foundation Brake Performance," SAE Int. J. Passeng. Cars - Mech. Syst. 3(2):14-30, 2010, https://doi.org/10.4271/2010-01-1681.
- Antanaitis, D. , “A Study of Mass Drivers in the Brake System,” SAE Int. J. Passeng. Cars - Mech. Syst. 7(4), 2014, doi:10.4271/2014-01-2506.
- Johnston, M., Leonard, E., Monsere, P., and Riefe, M., “Vehicle Brake Performance Assessment Using Subsystem Testing and Modeling,” SAE Technical Paper 2005-01-0791, 2005, doi:10.4271/2005-01-0791.
- Federal Motor Vehicle Standard 135 Light Vehicle Brake Systems FMVSS135 F.R. Vol. 77 No. 4 – 06.01.2012.
- “Road Load Measurement Using Onboard Anemometry and Coastdown Techniques” , SAE Recommended Practice J2263_200812, December 2008.
- “Performance Requirements for Determining Tow-Vehicle Gross Combination Weight Rating and Trailer Weight Rating”, SAE Recommended Practice J2807_201602, 2016.
- Sheridan, D., Kutchey, J., and Samie, F., "Approaches to the Thermal Modeling of Disc Brakes," SAE Technical Paper 880256, 1988, https://doi.org/10.4271/880256.
- Shenberger, M.J. and Antanaitis, D., “Brake System Design for Dedicated BEV Architectures,” SAE Technical Paper 2018-01-1870, 2018, doi:10.4271/2018-01-1870.
- Holly, M., DeVoe, L., and Webster, J., "Ferritic Nitrocarburized Brake Rotors," SAE Technical Paper 2011-01-0567, 2011, https://doi.org/10.4271/2011-01-0567
- Antanaitis, D. and Robere, M., "Brake System Performance at Higher Mileage," SAE Int. J. Passeng. Cars - Mech. Syst. 10(3):748-763, 2017, https://doi.org/10.4271/2017-01-2502.
- Ashman, G. , "The Development Of Phenolic Disc Brake Pistons for European Vehicles," SAE Technical Paper 840551, 1984, https://doi.org/10.4271/840551.