Device for determining initial correction factor for correcting

Details Device for determining initial correction factor for correcting Device for determining initial correction factor for correcting

1997-12-15

1999-09-28

Felber, Joseph L.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

340444, 701 70, 702140, B60C 2302

Patent

active

059592028

ABSTRACT:
A device for finding correction factors for correcting outputs of rotational velocity detectors used for detecting the rotational velocities of four tires mounted on a vehicle. The device judges whether or not the vehicle is traveling linearly. If the vehicle is traveling linearly, an initial correction factor K.sub.1 for eliminating the effect of a difference in effective rolling radius between the right and left front tires, and an initial correction factor K.sub.2 for eliminating the effect of a difference in effective rolling radius between the right and left rear tires, are calculated on the basis of the outputs of the rotational velocity detectors. When it is judged that the vehicle is coasting linearly, an initial correction factor K.sub.3 for eliminating the effect of a difference in effective rolling radius between the front tire and the rear tire is calculated.

REFERENCES:
patent: 5179526 (1993-01-01), Zimmer et al.
patent: 5415468 (1995-05-01), Latarnik et al.
patent: 5578984 (1996-11-01), Nakajima
patent: 5699251 (1997-12-01), Mori et al.
"Comparative Diagnosis of Tyre Pressures", Helmut Mayer; Institute for Industrial Information Systems, University of Karlsruhe, Germany; Proceedings of the Conference on Control Applications, Glasgow, Aug. 24-26, 1994; vol. 1, pp. 627-632 XP 000682538.

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