Automatic axle traction control

Details Automatic axle traction control Automatic axle traction control

2008-01-29

2008-01-29

Morris, Lesley D. (Department: 3611)

Motor vehicles

With means for detecting wheel slip during vehicle...

Reexamination Certificate

active

07322436

ABSTRACT:
An automatic axle engagement system utilizes wheel speed sensors, engine control, and braking control to provide optimal engagement of a front drive axle to provide all wheel drive under poor driving conditions. The system includes a transfer case that is coupled to a power source and which has output shafts for front and rear drive axles. The engine provides torque to the transfer case via an input shaft. Wheel sensors generate wheel speed signals that are transmitted to a controller, which determined whether or not there is wheel slip. The controller initiates a shift to drivingly engage the front drive axle if there is wheel slippage by controlling one or both of the output torque or axle braking forces to bring rotational speeds of the input shaft and the rear axle output shaft within a predetermined speed range.

REFERENCES:
patent: 4753312 (1988-06-01), Burgdorf et al.
patent: 4854413 (1989-08-01), Kameda
patent: 4967869 (1990-11-01), Nagaoka et al.
patent: 5035158 (1991-07-01), Leigh-Monstevens
patent: 5150637 (1992-09-01), Ninomiya
patent: 5184695 (1993-02-01), Matsuda et al.
patent: 5215160 (1993-06-01), Williams
patent: 5275252 (1994-01-01), Sperduti
patent: 5275253 (1994-01-01), Sperduti
patent: 5335764 (1994-08-01), Leitner et al.
patent: 5407024 (1995-04-01), Watson
patent: 5485894 (1996-01-01), Watson
patent: 5522777 (1996-06-01), Baxter et al.
patent: 5609219 (1997-03-01), Watson
patent: 5651593 (1997-07-01), Shitani et al.
patent: 5737714 (1998-04-01), Matsuno et al.
patent: 5771477 (1998-06-01), Showalter
patent: 5850616 (1998-12-01), Matsuno
patent: 5867092 (1999-02-01), Vogt
patent: 5913377 (1999-06-01), Ota
patent: 5927426 (1999-07-01), Hall
patent: 5993354 (1999-11-01), Winks
patent: 6000488 (1999-12-01), Atkinson
patent: 6007454 (1999-12-01), Takahira et al.
patent: 6062330 (2000-05-01), Watson
patent: 6105703 (2000-08-01), Kuroda et al.
patent: 6108601 (2000-08-01), Breithor et al.
patent: 6115663 (2000-09-01), Yasuda
patent: 6186258 (2001-02-01), Deutschel
patent: 6193006 (2001-02-01), Deutschel
patent: 6360156 (2002-03-01), Morganroth et al.
patent: 6386308 (2002-05-01), Takahira et al.
patent: 3527959 (1987-02-01), None
patent: 3636260 (1988-05-01), None
patent: 0 510 457 (1994-08-01), None
patent: 0 885 766 (2000-08-01), None
The 43rd L. Ray Buckendale Lecture, “Commerical Vehicle Braking Systems: Air Brakes, ABS and Beyond”, Leonard C. Buckman, P.E.—Meritor WABCO, SAE International, 1998.
English translation of DE 3636260.

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