High Power Density and High Efficiency Motor Controller

Overview

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.

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