Steering assistance device for vehicle

Details Steering assistance device for vehicle Steering assistance device for vehicle

2011-07-05

2011-07-05

Hellner, Mark (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C701S042000, C180S006200, C180S006280

Reexamination Certificate

active

07974752

ABSTRACT:
A steering assist apparatus for a vehicle includes an electric motor for steering assist. Rotation output of the electric motor is reduced in speed by a ball-screw mechanism and converted to rectilinear motion, which is transmitted to a rack bar. An electronic control unit determines a target current value in accordance with a steering torque detected by a steering torque sensor and a vehicle speed detected by a vehicle speed sensor. While using an actual current value of the electric motor detected by a current sensor as a feedback, the electronic control unit controls the current flowing through the electric motor to be equal to the target current value. The electronic control unit changes the feedback gain of the feedback control in accordance with a steering angle detected by a steering angle sensor, to thereby suppress abnormal noise generated at a steering mechanism, without deteriorating steering feel.

REFERENCES:
patent: 6032757 (2000-03-01), Kawaguchi et al.
patent: 2002/0005314 (2002-01-01), Takehara et al.
patent: 2003/0052639 (2003-03-01), Tanaka et al.
patent: 2004/0055810 (2004-03-01), Chabaan
patent: 2004/0140148 (2004-07-01), Nishizaki et al.
patent: 4-71959 (1992-03-01), None
patent: 5-229443 (1993-09-01), None
patent: 6-4417 (1994-01-01), None
patent: 7-196048 (1995-08-01), None
patent: 8-67266 (1996-03-01), None
patent: 8-72732 (1996-03-01), None
patent: 08085470 (1996-04-01), None
patent: 8-332969 (1996-12-01), None
patent: 10-264838 (1998-10-01), None
patent: 11-321691 (1999-11-01), None
patent: 2001-114121 (2001-04-01), None
patent: 2001-171533 (2001-06-01), None
patent: 2003-26022 (2003-01-01), None
patent: 2003-118617 (2003-04-01), None
patent: 2004-338696 (2004-12-01), None
patent: 2005-22468 (2005-01-01), None
patent: 2005-170283 (2005-06-01), None
patent: 2 185 301 (2002-07-01), None
patent: 43 837 (2005-02-01), None

Affiliated with

Also associated with

Rating

Steering assistance device for vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Steering assistance device for vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steering assistance device for vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2740690