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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Research on Braking Stability of Electro-mechanical Hybrid Braking System in Electric Vehicles

School of transportation science and engineering, Beihang University No.37 Xue Yuan Road, Hai Dian Zone Beijing, China
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2010, 4(1), 217-223; https://doi.org/10.3390/wevj4010217
Published: 26 March 2010
PDF [391 KB, uploaded 18 May 2018]

Abstract

For the electro-mechanical hybrid braking system, which is composed of electric brake and general friction brake, the models of electric braking force, total braking force and the utilization adhesion coefficient for front and rear axles were established based on the analysis of braking torque distribution. The variation relationship between electric braking force and friction braking force in different braking intensity was calculated and analyzed with the paralleled-hybridized braking control strategy. Taking USA urban driving circle UDDS as an example, the utilization adhesion coefficient of front and rear axles was calculated at different braking intensity for a certain Electric Vehicles (EVs), and the braking stability was also analyzed for front-wheel drive EVs. The calculation results indicate that the utilization adhesion coefficient of front axle is always greater than that of rear axle, which means the front axle always locked ahead of the rear axle, thus the braking stability meets the requirement. The calculation results also have certain instructive significance on the anti-lock braking system (ABS) and electric brake-force distribution (EBD) of EVs.
Keywords: electric vehicles; electric brake; electro-mechanical hybrid brake; braking stability; utilization adhesion coefficient electric vehicles; electric brake; electro-mechanical hybrid brake; braking stability; utilization adhesion coefficient
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Ji, F.; Tian, M. Research on Braking Stability of Electro-mechanical Hybrid Braking System in Electric Vehicles. World Electr. Veh. J. 2010, 4, 217-223.

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