More details have emerged on the development of the Yamaha MOTIV.e city car concept which was shown at the Tokyo Motor Show last November. The MOTIV.e will be offered with several drivetrains, including an electric version, and EV specialist Zytek will supply a purpose-built ultra-high-speed motor for the project. The 25 kW Zytek motor spins to 15,000 rpm and comes with advanced thermal management and control integration. The unit has been designed to cut cost, weight and size and this appears to have been achieved as the motor weighs just 13 kg, the gearbox just 11 kg and the inverter just 7.5 kg.
Read the full article: Yamaha MOTIV.e city car to use ultra-high-speed Zytek electric drive train