Integrated design optimization of the transmission system and vehicle control for electric vehicles

T. Hofman, N.H.J. Janssen

Research output: Contribution to journalConference articlepeer-review

13 Citations (Scopus)
45 Downloads (Pure)

Abstract

The focus is on the combined design optimization of the transmission design and control design for an electric vehicle. In literature, these design problems are treated separately, whereas combining both mathematically coupled design problems into an integrated problem improves optimality. A shiftable transmission, e.g., a continuously variable transmission (CVT), allowing a smooth and continuous transition between the powertrain operation points further optimizes the energy usage, yet also allows further the reduction of the electric machine (Nm/W) and transmission specifications (overall speed ratio) in comparison with an optimized fixed-gear transmission. Moreover, a CVT enables for autonomous driving electric vehicles to further increase the driving range without compromising the vehicle performance. The influence of the transmission type, losses and driving conditions (average speed) are investigated for an EV of which the travelled distance, velocity and speed ratio (for the CVT) are the controlled states.

Original languageEnglish
Pages (from-to)10072-10077
Number of pages6
JournalIFAC-PapersOnLine
Volume50
Issue number1
DOIs
Publication statusPublished - 1 Jul 2017
Event20th World Congress of the International Federation of Automatic Control (IFAC 2017 World Congress) - Toulouse, France
Duration: 9 Jul 201714 Jul 2017
Conference number: 20
https://www.ifac2017.org/

Keywords

  • Adaptive
  • alternative drive vehicles
  • Hybrid
  • Nonlinear
  • optimal automotive control
  • robust control of automotive systems

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