Patent ID: 7032441
Filing Date: 2006-04-25
Classification: B60C

Abstract:
1. A tire-state obtaining apparatus including a plurality of wheel-side devices respectively provided on a plurality of wheels of a vehicle, and a body-side device disposed on a body of the vehicle, said tire-state obtaining apparatus obtaining states of tires of the wheels on the basis of information transmitted from said wheel-side devices, wherein an improvement comprises: each of said plurality of wheel-side devices includes (a) a tire-state detecting device operable to detect the state of the tire of the corresponding wheel, and (b) a transmitter device operable to transmit a series of tire information including tire-state data indicative of the state of the tire detected by said tire-state detecting device; and said body-side device includes (c) at least one receiver device each provided commonly for at least two of the transmitter devices of said plurality of wheel-side devices and operable to receive sets of the tire information transmitted from said at least two transmitter devices, and (d) a wheel-position-related-data obtaining device operable to obtain wheel-position-related data relating to positions of said wheels, on the basis of conditions in which said at least one receiver device receives the sets of tire information transmitted from said transmitter devices.