Efficient In-wheel Motor Control

Overview

With elimination of bulky transmissions, driveshafts, and differentials in EV’s powertrain, in-wheel motor (IWM) has obvious advantages of high efficiency, driving dynamics, active safety and space saving. This efficient 15kW control system for IWM provides motor position sensor fault-tolerant operation and anti-slip function.

Technical name of innovation
Efficient In-wheel Motor Control with Sensor Fault-tolerant Operation for Electric Vehicle ​
Commercialisation opportunities
Licensing agreement
Problem addressed

Electric vehicles with traditional single, central motor and drivetrain bring adverse impact to efficiency and passenger space.

Innovation
  • Smart torque control algorithm with anti-slip function for in-wheel motors.
  • Motor position sensor fault-tolerant algorithm.
Key impact
  • Improve efficiency and driving mileage.
  • Enhance stability and control capability.
  • Improve flexibility of vehicle design.
Application
  • Pure Electric Vehicles (PEV)
  • Hybrid Electric Vehicles (HEV)
  • Other battery-powered vehicles

Patent

  • PRC utility model patent: CN211764897U
  • HK Short-term patent: HK30011312
Centre of Advanced Power and Autonomous Systems (APAS)

Centre of Advanced Power and Autonomous Systems (APAS) (formerly Automotive Platforms and Application Systems R&D Centre) was established in 2006 and is fully integrated as a business division under HKPC on 1 April 2025. APAS continues to undertake market-led R&D programmes spanning green transportation, smart mobility, intelligent systems and emerging applications, as well as commercialises R&D results in collaboration with industry, universities and technology institutes to enhance the competitiveness of Hong Kong's automotive and other transportation sectors in new energy and smart driving.

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