DETERMINATION OF WHEEL SENSOR POSITION USING SHOCK SENSORS AND A WIRELESS SOLUTION

摘要

A remote tire monitor system (102) includes a control unit (112) and a plurality of tire monitors (124, 126, 128, 130) mountable on respective whee ls (104, 106, 108, 110) of a vehicle (100) to transmit radio signals to the control unit. The tire monitors each include a pair of motion sensors such a s shock sensors (210, 212) and a control circuit (202) configured to determine position information for the respective tire monitor based on first and seco nd shock sensor signals from the pair of shock sensors. The shock sensors produ ce an output voltage proportional to a change in applied force. Therefore, the offset created by centrifugal force in previously used accelerometers is absent, simplifying design of the tire monitors.