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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
Whisper bus carries motors in its wheels, Professional Engineering, 15 October 2003, p 12
In the Netherlands,the e-Traction company has developed an in-wheel electric motor to drive its Whisper bus. Energy is supplied from nickel-zinc batteries that are recharged through a diesel-fuelled generating set designed to kick in when required to support propulsion. Two electric motor units, known as The Wheel, provide drive to the rear wheels. A tyre is mounted on the exterior of the motor which contains permanent magnets spinning around stationary electromagnets at the centre. A torque of 3634 to 6290 N m can be generated from each 120 kW unit, giving a maximum of 13600 N m. The energy efficiency of The Wheel is claimed as 90%, and the braking is regenerative.
Abstract details
Journal title: Professional Engineering
Keywords: 4 Propulsion - 4.3 Hybrid vehicles
Subjects: Mechanical and industrial engineering, Energy efficiency, Energy consumption, Transport, Distributed storage, Non-ferrous metals, Gasoil
