Method of detecting a deflated tire on a vehicle

Details Method of detecting a deflated tire on a vehicle Method of detecting a deflated tire on a vehicle

1993-04-01

1999-07-13

Hofsass, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340444, 731465, B60C 2300

Patent

active

059232447

ABSTRACT:
A method of detecting a deflated tire on a vehicle by rotating each tire of the vehicle, providing one wheel speed sensor for each of the tires, detecting the angular velocity speed of the tires by the wheel speed sensors, comparing the rolling radii of the tires by means of comparing angular velocity speed signals from wheel speed sensors characterized by calculating an error value (DEL') where
where C1, C2, C3 and C4 are angular velocity values for left-hand front, right-hand front, left-hand rear, and right-hand rear wheels of the vehicle respectively, determining a correction factor (LAT), calculating a corrected error value (DEL) where

REFERENCES:
patent: 4876528 (1989-10-01), Walker et al.
patent: 5248957 (1993-09-01), Walker et al.

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