Calgary’s Exro says its intelligent coil driver ready for electric cars
By DE StaffGeneral Automotive
Company’s EV tech optimizes electric motor speed/torque performance under load and in real time.
Typically, electric motors are tuned to maximize either speed or torque, or some compromise between the two performance stats. The Calgary-based company’s intelligent coil switching technology, however, can automatically select the appropriate motor configuration in real time so that torque demand and efficiency are optimized. As a result, the technology removes the need, in an electric vehicle, for a gearbox or a dual electric motor setup (i.e. one optimized for low-end torque and the other for speed.)
With validation of the company’s 100V Coil Driver version complete, Exro says it’s on schedule to deliver a prototype to Potencia Industrial, S.A. DE C.V., one of Mexico’s largest motor manufacturers.
“I am extremely pleased with the speed-torque results from our bench tests,” said Eric Hustedt, Chief Engineer of Exro. “I have no concerns over the operations of the drive moving forward. The hardware is more than able to support the dynamic switching under loads, and demonstration of these algorithms in the drive is a major breakthrough.”