Wheel diameter difference judging system and wheel speed correct

Details Wheel diameter difference judging system and wheel speed correct Wheel diameter difference judging system and wheel speed correct

1995-12-11

1998-06-23

Chin, Gary

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

364565, 364424034, 364426038, 303DIG7, G06F 1700

Patent

active

057714797

ABSTRACT:
A wheel diameter judging system and wheel speed correcting system which calculates a driven wheel slip rate, and a driven wheel torque. A variation characteristic of the driven wheel slip rate relative to the variation in driven wheel torque is presumed using the method of least squares. A correction value corresponding to a ratio of the number of revolutions of a follower wheel to the number of revolutions of a driven wheel in a condition in which the driven wheel is not in a slipping state is calculated as an intercept of the driven wheel slip rate at the driving torque equal to zero in a graph of the variation characteristic. The driven wheel speed is corrected by the correction value. The driven wheel speed is corrected by the correction value. Thus, even if the driven wheel is in the slipping state, a difference in diameter between the follower and driven wheels can be accurately judged, and the follower wheel speed or the driven wheel speed can be accurately corrected.

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patent: 5561415 (1996-10-01), Dieckmann

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