Video: Coil Driver technology extended to electric vehicle technologyS. Himmelstein | July 27, 2021
Coil Driver technology developed by Exro Technologies Inc. now has the potential to dramatically reduce the cost and complexity associated with deploying electric vehicle (EV) infrastructure at scale.
Coil Driver is a next-generation dynamic motor controller that expands the capabilities of electric motors by enabling multiple dynamic profiles in operation. The device replaces classic inverters and can calculate the system’s demands for torque or speed, and seamlessly switch the configuration to match the desired output in real time to optimize the power train electronically—extending operating ranges, and increasing operational efficiencies. A single motor can repeatedly change configurations on the fly and under demand to deliver optimal performance at low speed as well as at high speed.
Currently, EVs require three different types of power electronics components to command the vehicles in motion and charge the batteries from either the grid or renewable energy sources: a motor drive, on-board charger and external DC fast charger. Exro engineers found that the Coil Driver technology has the ability to replace all three components, significantly reducing the cost and complexity of deploying EVs and the charging infrastructure at scale.
Initial findings show that the minimal addition of voltage sensors to the existing Coil Driver enables this charging infrastructure use case.