Shift switching device and shift switching method

Details Shift switching device and shift switching method Shift switching device and shift switching method

2008-09-30

2011-10-11

Leykin, Rita (Department: 2837)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C318S400020, C318S400330, C318S434000, C318S446000, C361S018000, C180S065210, C180S065265, C180S065275, C180S065285, C701S022000, C701S029000, C701S031000, C701S033000, C701S035000, C702S065000, C702S064000

Reexamination Certificate

active

08035934

ABSTRACT:
A shift-by-wire shift switching device and shift switching method that switch a shift range of an automatic transmission using an electric motor. The shift switching device includes a controller that determines whether a fault has occurred in a current supply line of each phase of the electric motor on a phase-by-phase basis, executes an open-loop control of the electric motor using only the phases in which it has been determined that a fault has not occurred, and determines whether a fault has occurred in the current supply line by detecting an activation state of the electric motor when the open-loop control of the electric motor is executed. Therefore, it is possible to determine whether a fault in the motor is a short-circuit fault or a break fault, without addition of a part such as a short-circuit detection sensor.

REFERENCES:
patent: 4584505 (1986-04-01), Chung et al.
patent: 4896089 (1990-01-01), Kliman et al.
patent: 6911798 (2005-06-01), Hori et al.
patent: 6914408 (2005-07-01), Sawada et al.
patent: 7239097 (2007-07-01), Hashimoto
patent: 7629760 (2009-12-01), Isobe et al.
patent: 2006/0138880 (2006-06-01), Kimura et al.
patent: 2000-170905 (2000-06-01), None
patent: 2004-129450 (2004-04-01), None
patent: 2006-336710 (2006-12-01), None

Affiliated with

Also associated with

Rating

Shift switching device and shift switching method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shift switching device and shift switching method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shift switching device and shift switching method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4270014