This paper describes the development of the drive motor used on a newly developed electric vehicle (EV) that has been specifically designed and engineered as the world's first mass-produced EV. Producing maximum torque of 280 Nm and maximum power of 80 kW, this synchronous motor was selected as the first electrified powertrain to be named to Ward's 10 Best Engines list for 2011. In developing this motor, magnetic field simulations were conducted in the process of adopting the following in-house technologies to achieve a compact motor size, high output and high efficiency.The rotor shape has the interior permanent magnets arranged in a ▽-shaped that achieves a superior balance of torque and power. The flux barriers located on the outer periphery are designed to reduce iron loss. The V-shaped flux barriers provide both excellent mechanical strength and outstanding performance during high-speed motor operation. The motor is built with segmented magnets that reduce eddy current losses to improve continuous output performance.The results of magnetic field simulations and mechanical strength simulations are presented along with a description of each of the unique technologies adopted.
Development of High-Power and High-Efficiency Motor for a Newly Developed Electric Vehicle
Sae Int. J. Alt. Power
SAE 2012 World Congress & Exhibition ; 2012
Sae International Journal of Alternative Powertrains ; 1 , 1 ; 104-111
2012-04-16
8 pages
Aufsatz (Konferenz)
Englisch
Development of High-Power and High-Efficiency Motor for a Newly Developed Electric Vehicle
British Library Conference Proceedings | 2012
|Development of an Electric Motor for a Newly Developed Electric Vehicle
British Library Conference Proceedings | 2014
|Development of an Electric Motor for a Newly Developed Electric Vehicle
SAE Technical Papers | 2014
|High Performance Motor and Inverter System for a Newly Developed Electric Vehicle
SAE Technical Papers | 2018
|High Performance Motor and Inverter System for a Newly Developed Electric Vehicle
British Library Conference Proceedings | 2018
|