US 6,982,636 B1
Method and system for mitigating false alarms in a tire pressure monitoring system for an automotive vehicle
Brian Bennie, Sterling Heights, Mich. (US); Dilip B. Patel, Wixom, Mich. (US); Frederick James Porter, Farmington Hills, Mich. (US); Leena Shah, Bloomfield Township, Mich. (US); Thomas Michael McQuade, Ann Arbor, Mich. (US); and Thomas Lee Miller, Ann Arbor, Mich. (US)
Assigned to Ford Global Technologies, LLC, Dearborn, Mich. (US)
Filed on Aug. 07, 2002, as Appl. No. 10/64,688.
Int. Cl. B60C 23/00 (2006.01)
U.S. Cl. 340—442 20 Claims
OG exemplary drawing
 
1. A pressure monitoring system for a tire of an automotive vehicle having a wheel comprising;
a first pressure sensor coupled to said wheel;
a pressure transmitter coupled to said pressure sensor, said transmitter generating a pressure signal;
a controller coupled to said pressure transmitter, said controller receiving said pressure signal and in a first stage, comparing the pressure signal to a pressure threshold to obtain a sensor status and in a second stage, qualifying the sensor status signal by generating a composite warning status in response to said sensor status, wherein the composite warning status provides an in-range signal when the pressure statuses have not exceeded the pressure threshold and the pressure transmitters are not in a fault condition.