Title :
Design of an in-wheel motor for a solar-powered electric vehicle
Author :
Lovatt, H.C. ; Ramsden, V.S. ; Mecrow, B.C.
fDate :
9/1/1998 12:00:00 AM
Abstract :
The design of an in-wheel electric motor for the solar-powered vehicle `Aurora´, entered in the 1996, 3010 km Darwin-Adelaide World Solar Challenge solar car race is described. Compared to other entrants in the race, the brushless DC motor is more efficient (97.5% compared to 92-95%) and lighter (8.3 kg compared to 12-16 kg) than all other direct-drive motors, and more efficient than all motor/gear combinations. This is achieved by the use of high flux-density rare-earth magnets, and computer aided optimisation of an axial-flux configuration consisting of a Halbach magnet array and an ironless air-gap winding
Keywords :
DC motor drives; air gaps; brushless DC motors; electric vehicles; machine windings; magnetic flux; permanent magnet motors; solar cell arrays; 8.3 kg; 97.5 percent; Aurora solar-powered electric vehicle; Darwin-Adelaide World Solar Challenge; Halbach magnet array; axial-flux configuration; brushless DC motor; computer aided optimisation; direct-drive motors; high flux-density rare-earth magnets; in-wheel motor; ironless air-gap winding; motor/gear combinations; solar car race;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:19982167
