Combined tire pressure monitoring and keyless entry receiver

摘要

A system for monitoring conditions within a tire ( 12 ) including a sensor assembly ( 14 ) including a pressure sensor ( 36 ), an accelerometer ( 34 ), a temperature sensor ( 32 ), and a transmitter ( 40 ) to transmit signals indicative of current tire conditions. A remote transmitter ( 22 ) for actuating a remote keyless entry system ( 19 ) emits a signal to actuate a function of the keyless entry system ( 19 ) such as unlocking doors ( 20 ) of the motor vehicle ( 10 ). A receiver assembly ( 16 ) includes an amplitude shift keyed receiver ( 52 ) and a frequency shift keyed receiver ( 58 ) selectively engagable to receive radio frequency transmissions from the tire monitoring system or the remote keyless entry system ( 19 ).