Protean and SKF team on wheel-motor advances

  • 16-Jan-2013 09:49 EST
Protean_in_Wheel_with_Micro_Inverters.jpg

Protean Electric says its in-wheel motor  with micro inverters has a mass of 31 kg (68 lb) and generates 81 kW and 800 N·m—"powerful enough for hybrid, PHEV, or used as the only source of traction drive for EV applications."

In what they term a "strategic partnership," bearing maker SKF will provide "critical components" to Protean Electric for the latter's in-wheel electric drive technology. The five-year agreement also calls for the companies to "look at additional new areas of collaboration for the hybrid and electric vehicle market." The initial focus of the partnership will be on a custom-designed SKF wheel bearing system with integrated sealing and sensors developed specifically for Protean. The bearing system is engineered to optimize performance of the in-wheel motor, which operates in a harsh environment. Protean claims its technology offers superior regenerative braking performance—energy recovery of up to 85%, among other attributes.

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