Article: Modelling of detailed vehicle dynamics and quantitative impact of electric motor placement on regenerative braking Journal: International Journal of Vehicle Performance (IJVP) 2023 Vol.9 No.1 pp.16 - 40 Abstract: Using forward type vehicle simulation, this paper aims at comparing the potential and limitations of front wheel drive and rear wheel drive electric motor placements for regenerative braking under extreme driving situations. First, the considered dynamic/data-driven modelling approach for the complete traction chain with attention to the effects of detailed vehicle dynamics has been implemented in MATLAB Simulink. Simple parallel regenerative braking technique and recuperation favouring brake distribution strategies have been employed on a performance electric car example considering front and rear wheel propulsion cases. Powertrain behaviour in a dynamic driving scenario has been investigated to understand how the two cases with their corresponding recuperation favouring braking strategies perform under elevated transient vehicle dynamics. Finally, the impact of normal load transfer, tyre slip and wheel adhesion limits on regenerative braking has been quantitatively compared for the complete range of brake pedal demands using high-speed braking tests while avoiding wheel lock-up. Inderscience Publishers - linking academia, business and industry through research

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Title: Modelling of detailed vehicle dynamics and quantitative impact of electric motor placement on regenerative braking

Authors: Shantanu Pardhi; Ajinkya Deshmukh; Hugo Ajrouche

Addresses: Capgemini Engineering, Research & Innovation France, 147-151 Quai du Président Roosevelt, 92130, Issy-les-Moulineaux, France ' Capgemini Engineering, Research & Innovation France, 147-151 Quai du Président Roosevelt, 92130, Issy-les-Moulineaux, France ' Capgemini Engineering, Research & Innovation France, 147-151 Quai du Président Roosevelt, 92130, Issy-les-Moulineaux, France

Abstract: Using forward type vehicle simulation, this paper aims at comparing the potential and limitations of front wheel drive and rear wheel drive electric motor placements for regenerative braking under extreme driving situations. First, the considered dynamic/data-driven modelling approach for the complete traction chain with attention to the effects of detailed vehicle dynamics has been implemented in MATLAB Simulink. Simple parallel regenerative braking technique and recuperation favouring brake distribution strategies have been employed on a performance electric car example considering front and rear wheel propulsion cases. Powertrain behaviour in a dynamic driving scenario has been investigated to understand how the two cases with their corresponding recuperation favouring braking strategies perform under elevated transient vehicle dynamics. Finally, the impact of normal load transfer, tyre slip and wheel adhesion limits on regenerative braking has been quantitatively compared for the complete range of brake pedal demands using high-speed braking tests while avoiding wheel lock-up.

Keywords: regenerative braking; electric motor axle placement; vehicle dynamics; wheel slip; normal load transfer; powertrain modelling; brake bias strategy; FWD; front wheel drive; RWD; rear wheel drive; simulation.

DOI: 10.1504/IJVP.2023.128033

International Journal of Vehicle Performance, 2023 Vol.9 No.1, pp.16 - 40

Received: 04 May 2021
Accepted: 13 Dec 2021
Published online: 04 Jan 2023 *

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Title: Modelling of detailed vehicle dynamics and quantitative impact of electric motor placement on regenerative braking

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