TM4, a subsidiary of public utility Hydro-Québec, is active in the development of EV motors and power systems. Its latest product is the CO150-HVF, an auxiliary power supply for commercial vehicle applications.

Based on the same platform as the company’s CO150 traction inverters, the CO150-HVF offers a CAN-based interface that allows dynamic control of frequency and output voltage for EV accessory applications (such as pumps, fans or compressors) using a 3-phase AC induction motor. This feature allows the use of variable speed accessories and reduces the average consumption of auxiliaries. Also, data available on the CAN shows the status of the inverter and its load, which enables advanced control functions.

Also this week, TM4 received $3.7 million (Canadian) to develop low-cost wheel motors for electric and hybrid vehicles. The funding was provided through Sustainable Development Technology Canada’s SD Tech Fund. The objective of this project is to design a wheel motor electric drive system for EVs, with high power density and the lowest possible cost.

Source: TM4