Electric power steering control apparatus

Details Electric power steering control apparatus Electric power steering control apparatus

2005-03-08

2005-03-08

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S443000, C701S041000

Reexamination Certificate

active

06863150

ABSTRACT:
A road surface reaction torque detector has a low-pass filter element whose time constant is determined in accordance with a vehicle speed that is detected by a vehicle steed detector and a motor rotation speed that is detected by a motor rotation speed detector. A road surface reaction torque estimation value is obtained in such a manner that the road surface reaction torque detector performs low-pass filter processing on steering shaft reaction torque signal that is outputted by a steering shaft reaction torque signal outputting means. As a result, an accuracy of estimation of road surface reaction torque is improved.

REFERENCES:
patent: 4715463 (1987-12-01), Shimizu
patent: 5568389 (1996-10-01), McLaughlin et al.
patent: 6450287 (2002-09-01), Kurishige et al.
patent: 6768283 (2004-07-01), Tanaka et al.
patent: 20020125063 (2002-09-01), Kurishige et al.
patent: 4300365 (1993-07-01), None
patent: 1129926 (2001-09-01), None
patent: 1184254 (2002-03-01), None
patent: 1236638 (2002-09-01), None
patent: 2001-122146 (2001-05-01), None
patent: 2001-239951 (2001-09-01), None
patent: 2003-312521 (2003-11-01), None
French Preliminary Search Report dated Jun. 10, 2004.

Affiliated with

Also associated with

Rating

Electric power steering control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric power steering control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric power steering control apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3426360