System for and method of driving electric automotive vehicle

Details System for and method of driving electric automotive vehicle System for and method of driving electric automotive vehicle

1993-02-09

1994-12-06

Shoop, Jr., William M.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Slipping and/or racing control for electric motors

318807, H02P 546

Patent

active

053714466

ABSTRACT:
A system for driving an electric automotive vehicle controls a slip frequency of a motor by feeding back to a signal control part a rotational speed detected by a motor speed sensor when the motor speed is normal. When the motor speed sensor is abnormal the system controls the slip frequency by feeding back to the signal control part the rotational speed estimated in accordance with an operating condition of the vehicle.

REFERENCES:
patent: 4041361 (1977-08-01), Cornell
patent: 4538100 (1985-08-01), Tuten et al.
patent: 4686434 (1987-08-01), Kojima et al.
patent: 4757240 (1988-07-01), Mizobuchi et al.
patent: 4825131 (1989-04-01), Nozaki et al.

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