Electric power steering control

Details Electric power steering control Electric power steering control

2011-07-05

2011-07-05

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S661000

Reexamination Certificate

active

07973504

ABSTRACT:
A method for improving a failure mode diagnostic of an electric power steering system by overcoming a motor electric lock condition due to position sensor signal corruption or other motor faults. If certain conditions are met, the method determines that the motor is in an electric lock condition, and then reduces a torque current command to the motor so that it is able to be rotated by a vehicle hand-wheel. Once the motor is able to be rotated, then the method determines whether certain conditions have been met to determine whether the position sensor is malfunctioning.

REFERENCES:
patent: 5076381 (1991-12-01), Daido et al.
patent: 5253725 (1993-10-01), Nishimoto
patent: 5267627 (1993-12-01), Frank et al.
patent: 6598699 (2003-07-01), Takehara et al.
patent: 6904999 (2005-06-01), Kojo et al.
patent: 7093687 (2006-08-01), Masaki et al.
patent: 2002/0166319 (2002-11-01), Grebe et al.
patent: 2005/0240332 (2005-10-01), Mori et al.
patent: 2006/0273247 (2006-12-01), Sakamaki et al.

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