Electric motor apparatus and power steering system

Details Electric motor apparatus and power steering system Electric motor apparatus and power steering system

2005-06-28

2005-06-28

Masih, Karen (Department: 2837)

Electricity: motive power systems

Phasing or angular or linear positional control of movable...

C318S727000, C318S254100

Reexamination Certificate

active

06911795

ABSTRACT:
In an electric motor apparatus of the present invention, both of energized spiral wires17A and17B for a first system18A and a second system18B cooperate to rotate the rotor25in a normal condition, however, when it is happened an abnormal condition in one of the first system and the second system, the energized spiral wires of the other system rotate the rotor25so that the present invention can prevent the rotation of the electric motor14from stopping just after the abnormal condition in either of the systems to achieve a fail-safe function. Therefore, the present invention can decrease a number of parts in comparison with the conventional apparatus having two actuators to restrain an increase of the cost and to achieve a compact structure.

REFERENCES:
patent: 4412794 (1983-11-01), Presley
patent: 4434389 (1984-02-01), Langley et al.
patent: 4825972 (1989-05-01), Shimizu
patent: 5242325 (1993-09-01), Nukushina
patent: 6483212 (2002-11-01), Mimura et al.
patent: 2003/0184183 (2003-10-01), Sakai et al.
patent: 100 39 170 (2001-06-01), None

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