Patent ID: 7266348
Filing Date: 2007-09-04
Classification: B60C

Abstract:
1. A tire air pressure detection system comprising: a transmitter provided at each of a plurality of wheels provided with tires, having a sensing unit for detecting data relating to air pressure of a corresponding tire, and sending out a detection signal of that sensing unit and a receiver provided at a chassis side and provided with a first controller receiving detection signals and finding the air pressures of the tires provided at the plurality of wheels based on the detection signals, wherein each transmitter has a strong electric field detecting function unit for detecting a strong electric field or strong radio interference and a second controller for receiving as input the detection signal of the sensing unit and sending a transmission signal toward the receiver at predetermined transmission timings, and the second controller is operative to stop a detection signal from being transmitted to the receiver at a current transmission timing when the strong electric field detecting function unit detects a strong electric field or strong radio interference in the interval from a previous communication timing to a current communication timing.