Efficient In-wheel Motor Control


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.

  • 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.
  • Pure Electric Vehicles (PEV)
  • Hybrid Electric Vehicles (HEV)
  • Other battery-powered vehicles


  • PRC utility model patent: CN211764897U
  • HK Short-term patent: HK30011312
Automotive Platforms and Application Systems (APAS)

Automotive Platforms and Application Systems (APAS) R&D Centre was established in 2006 by the Innovation and Technology Commission of HKSAR Government and hosted by the Hong Kong Productivity Council. The Centre undertakes R&D programmes as well as commercialising R&D results in collaboration with industry, universities and technology institutes for the development of the APAS technology. Since its establishment, APAS R&D Centre has carried out over 100 R&D projects and focus on 3 R&D areas, Green Transportation, Smart Mobility and Intelligent Systems. To facilitate greater synergy and further enhance cost effectiveness, APAS is form part of the Hong Kong Productivity Council with effect from 1 Nov 2012.