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Multi-step torque distribution for an over-actuated electric vehicle

  • Houhua Jing*
  • , Zhiyuan Liu
  • , Haifeng Liu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The over-actuated electric vehicle can flexibly adjust the torque of four wheels, to improve operational efficiency and vehicle motion performance. A multi-step torque distribution strategy is proposed, which can comprehensively consider the energy optimisation, vehicle stability and actuator dynamics, and realise the comprehensive control of longitudinal and lateral motion. It is composed of a static control allocation for energy optimisation, and a dynamic control allocation for manoeuvrability and stability enhancement based on model predictive control. It does not rely on complex online optimisation and is adaptive to highlight energy-saving, motion performance or stability under various scenarios. Finally, the controller is validated using a high-fidelity simulator called veDYNA.

Original languageEnglish
Pages (from-to)140-160
Number of pages21
JournalInternational Journal of Vehicle Design
Volume82
Issue number1-4
DOIs
StatePublished - 2020

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Energy efficiency optimisation
  • Model predictive control
  • Over-actuated
  • Torque distribution

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