Off road vehicle

Details Off road vehicle Off road vehicle

2004-07-13

2008-12-16

Hurley, Kevin (Department: 3611)

Motor vehicles

Having four wheels driven

With means for steering all driven wheels

C180S242000, C180S411000

Reexamination Certificate

active

07464785

ABSTRACT:
The invention describes vehicles where the steering effect of the driver-selected wheel angles is made identical to the steering effect of positively and independently driving the driven wheels. A method of compensating for the linear portions of the slip angles of all wheels and the linear portions of the longitudinal slip of the driven wheels is described where the slip angles and longitudinal slips are deduced from the forces acting on the wheels. Methods of measuring the slip angles and longitudinal slips of all wheels by means of two dummy castors are also described. Vehicles where the steering effect of the driver-selected wheel angles is made identical to the steering effect of positively and independently braking all wheels are also described. Means of applying the above principles to vehicles with either hydrostatic or mechanical drives are also described, including simplified vehicles with only two steerable wheels.

REFERENCES:
patent: 221547 (1987-05-01), None
patent: 325298 (1994-04-01), None
patent: WO 0032462 (2000-06-01), None
patent: WO 0228677 (2002-04-01), None
patent: WO 03059720 (2003-07-01), None

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