Method of and device for detecting tire pressure drop based on a

Details Method of and device for detecting tire pressure drop based on a Method of and device for detecting tire pressure drop based on a

1995-12-08

1997-05-13

Chilcot, Richard

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

340444, B60C 2302

Patent

active

056294786

ABSTRACT:
A method of and a device for detecting a pneumatic pressure drop of tires provided for a vehicle are disclosed. Rotational angular velocities of tires are determined and a judged value D is determined based on the determined rotational angular velocities. A speed of the vehicle, a front/rear acceleration FRA of the vehicle, a lateral acceleration LA of the vehicle and a turning radius R of the vehicle are substituted into a predetermined polynominal expression which is defined so that an influence of the turning radius R is exerted on all terms to determine a correction value. A judged value D' after correction is determined by correcting the judged value D using the correction value. It is judged whether a tire pressure drops or not, based on the judged value D' after correction. In such way, a tire pressure drop can be detected, accurately, excluding an influence of the turning radius R of the vehicle.

REFERENCES:
patent: 5248957 (1993-09-01), Walker et al.

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