Motor vehicles – Steering gear – Each wheel steerable
Reexamination Certificate
2005-08-16
2005-08-16
Winner, Tony (Department: 3611)
Motor vehicles
Steering gear
Each wheel steerable
C180S402000, C701S043000
Reexamination Certificate
active
06929086
ABSTRACT:
A steering system selectively operable in one of six modes: steer-by-wire with rear steering, steer-by-wire without rear steering, electronic power assist steering (EPAS) with rear steering, electronic power steering (EPAS) without rear steering, mechanical backup manual steering with rear steering, and mechanical backup manual steering without rear steering. The steer-by-wire system includes a driver interface system (DIS), a front road wheel actuator system (FRWAS), a rear road wheel actuator system (RRWAS), and a controller for monitoring and implementing the preferred control strategy. The steering system operates normally in a steer-by-wire mode. In each of the EPAS mode and manual mode, the controller causes a clutch mechanism to engage, thus creating a mechanical linkage between the steerable member and the rack and pinion system while maintaining rear wheel assisted steering. In the EPAS mode, one of the front road wheel actuator or the reaction torque generator is available to assist in the steering operation along with rear wheel steering. Alternatively, in the manual mode, both the DIS and the FRWAS are deactivated and the vehicle is steerable through mechanical device along with the rear wheel assisted steering.
REFERENCES:
patent: 4741409 (1988-05-01), Westercamp et al.
patent: 4771846 (1988-09-01), Venable et al.
patent: 4823899 (1989-04-01), Ron
patent: 4970647 (1990-11-01), Karadsheh et al.
patent: 5014802 (1991-05-01), Knoll et al.
patent: 5076382 (1991-12-01), Vaughn et al.
patent: 5097917 (1992-03-01), Serizawa et al.
patent: 5224042 (1993-06-01), Morrison
patent: 5257191 (1993-10-01), Takehara et al.
patent: 5258912 (1993-11-01), Ghoneim et al.
patent: 5653304 (1997-08-01), Renfroe
patent: 5908457 (1999-06-01), Higashira et al.
patent: 5964814 (1999-10-01), Müller et al.
patent: 6012540 (2000-01-01), Bohner et al.
patent: 6032757 (2000-03-01), Kawaguchi et al.
patent: 6041882 (2000-03-01), Bohner et al.
patent: 6269903 (2001-08-01), Bohner et al.
patent: 6283243 (2001-09-01), Bohner et al.
patent: 6341251 (2002-01-01), Enomoto et al.
patent: 6370460 (2002-04-01), Kaufmann et al.
patent: 6442462 (2002-08-01), Nishizaki et al.
patent: 6523632 (2003-02-01), Hanaoka et al.
patent: 6529803 (2003-03-01), Meyers et al.
patent: 6580989 (2003-06-01), Husain et al.
patent: 6625529 (2003-09-01), Obata et al.
patent: 6681167 (2004-01-01), Bedner et al.
patent: 2004/0144592 (2004-07-01), Andonian et al.
International Publication No. WO 99/38390, Inventor: Borsting et al., Published on Nov. 18, 1999, entitled: Steering Arrangement.
International Publication No. WO 99/39967, Inventor: Bohner et al., Published on Aug. 12, 1999, entitled: Steering System.
Daugherty Brian E.
Husain Muqtada
Oynoian John G.
LandOfFree
Motor vehicle steering system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor vehicle steering system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor vehicle steering system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3505463