Battery-Electric Powertrain Design Analysis for an Efficient Passenger Vehicle

Julien Duclos, Theo Hofman

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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In this paper, different battery-electric powertrain designs have been investigated for a passenger hatchback vehicle. Specifically, the energetic effect of technological and topological choices in the powertrain design is analyzed. Thereto, a feasible set of battery electric powertrain configurations, varying in topology, machine technology, and transmission architecture is considered. For each configuration, the electric machine size(s), gear ratio value(s), and controls are jointly optimized in an integrated (bi-level) fashion using the particle swarm optimization (PSO) algorithm. The results showcase that the combined component and topological choices can lead to a maximum reduction of 17.61% in the vehicle’s energy consumption and can significantly influence the total electric machine sizing in the powertrain. Furthermore, it has been shown that the energy consumption of the vehicle is lowered by: (i) using two axles (AWD) instead of one axle (RWD) to drive the vehicle (-12.0%); (ii) choosing a distributed drive system, over a central drive system (-6.6%); followed by (iii) using permanent-magnet-synchronous type machine(s) instead of asynchronous induction machines (-3.0%); and, (iv) using multiple electric machines in single-axled topologies (-0.80%). The smallest energetic impact was observed for (v) using two-speed instead of single-speed gear box(es) (-0.38%); however, it resulted in the largest reduction in the (total) electric machine size(s) (-10.3%).
Original languageEnglish
Title of host publication2021 IEEE Vehicle Power and Propulsion Conference, VPPC 2021 - ProceedingS
PublisherInstitute of Electrical and Electronics Engineers
Number of pages8
ISBN (Electronic)978-1-6654-0528-7
Publication statusPublished - 10 Feb 2022
Event18th IEEE Vehicle Propulsion and Power Conference (VPPC 2021) - Gijon, Spain
Duration: 25 Oct 202128 Oct 2021
Conference number: 18


Conference18th IEEE Vehicle Propulsion and Power Conference (VPPC 2021)
Abbreviated titleVPPC 2021
Internet address


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