Rear suspension design for an in-wheel-drive electric car

Ashwin Dayal George, Igo Besselink

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)
2 Downloads (Pure)

Abstract

The in-wheel motor configuration can provide more flexibility to electric car design, making the car more compact and lightweight. However, current suspension systems are not designed to incorporate an in-wheel powertrain, and studies have shown deterioration in ride comfort and handling when more unsprung mass is added to a vehicle. In order to develop a battery electric vehicle with an in-wheel powertrain, a new rear-suspension design is proposed after considering several designs that are currently used in cars. The suspension is designed specifically for an in-wheel powertrain and, by efficiently using the available space, all the components of the powertrain and the battery pack can be fitted compactly within the limited space available in a subcompact (B-segment) car. The design also mitigates some issues of the high unsprung mass as simulations were conducted to determine the ride comfort and the handling characteristics of the vehicle. The in-wheel module is currently being tested at the Eindhoven University of Technology.

Original languageEnglish
Pages (from-to)147-159
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers. Part D : Journal of Automobile Engineering
Volume230
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

Keywords

  • electric vehicle
  • electric vehicle layouts
  • in-wheel drive
  • In-wheel module
  • ride comfort
  • suspension design
  • unsprung mass
  • vehicle simulations

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