Electric vehicle drive apparatus

Details Electric vehicle drive apparatus Electric vehicle drive apparatus

2008-04-04

2010-11-02

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S799000, C318S811000

Reexamination Certificate

active

07825623

ABSTRACT:
In an electric vehicle drive apparatus having an electric motor and a motor drive device, the electric motor having a stator, a rotor and a moving mechanism capable of changing a relative distance between the stator and the rotor to vary an effective magnetic flux of the motor, the motor drive device compares a regenerative current with a target current during a regenerative control of the motor, and when it is found that the regenerative current is larger than the target current, the distance between the stator and the rotor is increased to reduce the effective magnetic flux.

REFERENCES:
patent: 2009/0026998 (2009-01-01), Ueno et al.
patent: 2002-58277 (2002-02-01), None
Patent Abstracts of Japan, Publication No. 2002058277, Feb. 22, 2002, 1 p.

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