Title :
Design of a fault-tolerant IPM motor for electric power steering
Author :
Bianchi, Nicola ; Pré, Michele Dai ; Bolognani, Silverio
Author_Institution :
Dept. of Electr. Eng., Univ. of Padova
fDate :
7/1/2006 12:00:00 AM
Abstract :
This paper deals with the design of an interior permanent magnet (IPM) motor for power steering. Such an application requires an imperative fault-tolerant capability that is obtained by means of a redundant solution with two motors on the same shaft. A ball-screw system converts the rotating movement into the linear movement of the steering rack. In addition, the IPM motor has to exhibit very low braking torque after a short-circuit fault. Useful relationships between the maximum braking torque and the motor parameters are found and used in the design of the motor
Keywords :
fault diagnosis; permanent magnet motors; steering systems; ball-screw system; electric power steering; fault-tolerant IPM motor; interior permanent magnet motor; short-circuit fault; Control systems; Electric motors; Engines; Fault tolerance; Fault tolerant systems; Permanent magnet motors; Power steering; Torque; Vehicle driving; Vehicles; Electric power steering; fault-tolerant system; permanent magnet (PM) motor; steer-by-wire system;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2006.877716
