High Power Density and High Efficiency Motor Controller


Motor controller is used in vehicles with electric powertrains to drive and control the motor power. It supplies battery power to the traction motor during operation and recharges the battery using energy recovered during deceleration. This 150kW high-performance motor controller is based on the latest Silicon Carbide (SiC) technology, with over 30% boost in power density and mroe than 3% boost in efficiency.

  • High Power Density and High Efficiency Motor Controller
Technical name of innovation
High Power Density and High Efficiency Motor Controller for Electric Vehicles
Commercialisation opportunities
Licensing agreement
Problem addressed

Traditional motor controller has the disadvantages of low efficiency and power density.

  • Design power drive based on SiC Metal-Oxide-Semiconductor Field-Effect Transistors.
Key impact
  • Higher efficiency with 99%; higher power density with 23kW/L.
  • Less current ripple and low noise.
  • With robust control algorithm and reliable protection strategy.
  • Extend driving range by over 5%.
  • Pure Electric Vehicles (PEV)
  • Hybrid Electric Vehicles (HEV)
  • Other battery-powered vehicles
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.