Infinitum Electric, the Texas-based designer of a printed circuit board (PCB) motor, is collaborating with a major U.S. automotive supplier to support the development of a hybrid vehicle. The company will validate the performance of its IEm series motor using oil cooling techniques before building a purposefully designed motor for hybrid assist powertrains used for more efficient hybrid vehicles.

The IEm series motor was selected to optimize the reliability and range for hybrid vehicles. Designed without heavy iron core and copper windings, the motors offer up to 250 kW power range, up to 25,000 RPM and The IEm Series motor was selected to optimize the reliability and range for hybrid vehicles. Source: Infinitum Electricpower density of up to 12 kW/kg. By replacing the conventional laminated stator core with PCB technology, mass and audible noise are reduced, and the elimination of core losses significantly improves efficiency. Optimized magnetic configurations also improve power density and the core-less architecture maintains high performance at high speeds. Additional product differentiators for this application include:

• Power densities are currently in the 3 kW/kg to 5 kW/kg range with potential to be extended to 7 to 12 kW/kg with active cooling
• Current densities are in the range of 8 kA/in² to 10 kA/in² with the potential to be extended to 13 ka/in² to 15 kA/in² with active cooling
• No cogging torque, which helps extend transmission life
• Motor noise is up to 15 dB lower than a conventional iron core motor
• High efficiency is constant over a wide range of speeds from 25% to 200% rated speed, which extends battery life and range

Infinitum Electric motors can also be rapidly manufactured at the point of use to streamlines assembly and production processes for original equipment manufacturers. Users can easily input application requirements, evaluate design options based on cost and performance and create PCB design files within minutes.