Power steering apparatus and rotary detector used therefor

Details Power steering apparatus and rotary detector used therefor Power steering apparatus and rotary detector used therefor

1989-07-10

1991-12-31

Bertsch, Richard A.

Motor vehicles

Compensating devices

36442405, B62D 504

Patent

active

050763814

ABSTRACT:
An electric power steering apparatus of the invention is provided with a rotary detector for detecting a rotational position of a motor, a vehicle speed sensor for detecting a vehicle speed, a torque sensor for detecting a steering torque, a calculating means for calculating angular velocity of aforesaid motor on the basis of aforesaid rotational position, and a target angular velocity setting means, wherein flow quantity of electric current to a motor for assisting steering force is made larger, when the steering torque is within a dead zone, correspondingly to the increase of the deviation on the basis of the deviation between the target angular velocity and the calculated angular velocity, thereby stabilized steering feeling in the vicinity of the steering angle middle point at the time of returning the steering wheel steered by mostly using the steering torque being in the dead zone.
And this power steering apparatus is capable of fully following up the rotation of the steering wheel as well as preventing the extreme returning of the steering wheel at the time of returning control, by subtracting subtractor current which is made small when both the steering torque and angular velocity are large, and made large when the steering torque is small and the angular velocity is large, from the driving current.

REFERENCES:
patent: 4703819 (1987-11-01), Hosotani
patent: 4753308 (1988-06-01), Noto et al.
patent: 4830137 (1989-05-01), Tatemoto et al.
patent: 4837692 (1989-06-01), Shimizu
patent: 4838374 (1989-06-01), Walton

Affiliated with

Also associated with

Rating

Power steering apparatus and rotary detector used therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power steering apparatus and rotary detector used therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power steering apparatus and rotary detector used therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1503513