Calibration method for inter-axle differential control system

Details Calibration method for inter-axle differential control system Calibration method for inter-axle differential control system

2007-09-04

2007-09-04

Morris, Lesley D. (Department: 3611)

Motor vehicles

Having four wheels driven

Including separate mechanical assemblies for transmitting...

C180S197000, C180S233000, C180S248000

Reexamination Certificate

active

11054964

ABSTRACT:
A vehicle includes steerable front wheels, an interaxle differential for transmitting torque from an engine to the front wheels and to rear wheels. The differential includes a controllable clutch operable to control a ratio of front wheel speed to rear wheel speed. A control unit controls the clutch as a function of sensed steering angles and stored information including steering angles and corresponding front to rear wheel speed ratio values. The control unit is automatically calibrated. The control unit periodically obtains steering angle values, periodically obtains front and rear wheel speed values, periodically generates new front to rear wheel speed ratio values, and replaces one of the stored front to rear wheel speed ratio values with one of the new ratio values if the steering angle values indicate that the vehicle has been in a straight ahead travel mode for at least a certain time period.

REFERENCES:
patent: 4681185 (1987-07-01), Hoernig et al.
patent: 4825368 (1989-04-01), Itoh et al.
patent: 4895217 (1990-01-01), Hueckler et al.
patent: 5075854 (1991-12-01), Imaseki et al.
patent: 5225984 (1993-07-01), Nakayama
patent: 5270930 (1993-12-01), Ito et al.
patent: 5301769 (1994-04-01), Weiss
patent: 5492194 (1996-02-01), McGinn et al.
patent: 5631829 (1997-05-01), Takasaki et al.
patent: 5710565 (1998-01-01), Shirai et al.
patent: 5742917 (1998-04-01), Matsuno
patent: 2003/0216212 (2003-11-01), Rodeghiero

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