Tire-state obtaining apparatus
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A tire-state obtaining apparatus operable to detect the states of tires of wheels and including (a) wheel-side devices each including a transmitter device (42), and (b) a body-side device including a receiver device operable to receive tire information from the wheel-side devices, wherein the positions of the wheels from which sets of the tire information have been transmitted are determined on the basis of the condition in which the receiver device receives the tire information. The receiver device includes a plurality of antennas oriented to receive the tire information from the respective wheel-side devices, and the wheel corresponding to the antenna having the highest intensity of reception of the tire information can be determined as the wheel from which the tire information has been transmitted, so that the antennas need not be located near the respective wheels, to identify the wheels.
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Citations
28 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. 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:
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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) a receiver device to receive sets of the tire information transmitted from the respective transmitter devices, (d) a communication-environment detecting device operable to detect an environment of communication between said plurality of wheel-side devices and said body-side device, and (e) a wheel-position-related-data obtaining device operable to obtain wheel-position-related data relating to positions of said wheels, on the basis of said environment of communication detected by said communication-environment detecting device, and on the basis of conditions in which said receiver device receives the sets of tire information transmitted from the respective transmitter devices. - View Dependent Claims (21, 22, 23)
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20. 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:
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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) a receiver device to receive sets of the tire information transmitted from the respective transmitter devices, (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 receiver device receives sets of the tire information transmitted from the respective transmitter devices, (e) a communication-environment detecting device operable to detect an environment of communication between said plurality of wheel-side devices and said body-side device, and (f) an operation-mode changing portion operable to change a mode of operation of said wheel-position-related-data obtaining device, on the basis of said environment of communication detected by said communication-environment detecting device. - View Dependent Claims (27, 28)
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24. 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:
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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) a receiver device to receive sets of the tire information transmitted from the respective transmitter devices, (d) a vehicle-running-condition detecting device operable to detect a running condition of the vehicle, and (e) a wheel-position-related-data obtaining device operable to obtain wheel-position-related data relating to positions of said wheels, on the basis of the running condition of the vehicle detected by said vehicle-running-condition detecting device, and on the basis of at least one of said state of the tire detected by said tire-state detecting device and a change of the detected state of the tire. - View Dependent Claims (25, 26)
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Specification