Title: Modelling and control of a brake system for an extended range electric vehicle equipped with axle motors

Authors: Kerem Bayar; Ricardo Biasini; Simona Onori; Giorgio Rizzoni

Addresses: Centre for Automotive Research, The Ohio State University, 930 Kinnear Rd., Columbus, OH 43212, USA ' Centre for Automotive Research, The Ohio State University, 930 Kinnear Rd., Columbus, OH 43212, USA ' Centre for Automotive Research, The Ohio State University, 930 Kinnear Rd., Columbus, OH 43212, USA ' Centre for Automotive Research, The Ohio State University, 930 Kinnear Rd., Columbus, OH 43212, USA

Abstract: This work focuses on modelling of an electro-hydraulic brake system for an extended range electric vehicle equipped with axle motors, and proposing an optimal braking strategy which utilises a two-layer split of braking action such that the desired braking force is first distributed to the front and rear axles in order to track the ideal brake force distribution factor and, then, to the electro-hydraulic friction brakes and electric motors in order to maximise energy recuperation. With simulation results, it is shown that the proposed regenerative braking strategy achieves the dual objective of ensuring a good dynamic performance and optimal energy recovery.

Keywords: HEVs; hybrid electric vehicles; E-REV; extended-range electric vehicles; electric vehicles; regenerative braking; vehicle braking; friction braking; EHB; electro-hydraulic braking; ideal brake force distribution; deceleration; energy optimisation; vehicle simulation; vehicle design; modelling.

DOI: 10.1504/IJVD.2012.047387

International Journal of Vehicle Design, 2012 Vol.58 No.2/3/4, pp.399 - 426

Available online: 18 Jun 2012 *

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