Tire position determination system

摘要

A tire position determination system includes a tire pressure detector attached to each tire to generate a tire pressure signal. An acceleration detector generates gravitational information for each tire pressure detector. A receiver arranged in a vehicle body receives the tire pressure signal from each tire pressure detector. An axle rotation amount detector detects an axle rotation amount of an axle corresponding to each tire and generates pulses indicative of the detected axle rotation amount. An automatic locator determines the position of each tire based on the gravitational force and the pulses. A pulse combination determination unit determines whether or not a combination of the pulses from the axle rotation amount detectors is appropriate. A pulse acquisition timing setting unit sets an acquisition timing of the pulse signal for the automatic locator based on the determination of the pulse combination determination unit.

主权项

1. A tire position determination system for determining positions of each of a plurality of tires, of a vehicle, each tire mounted on an associated axle of the vehicle, the tire position determination system comprising:
a tire pressure detector attached to each tire, wherein the tire pressure detector generates a tire pressure signal; an acceleration detector, that generates gravitational force information, associated with each tire pressure detector; a receiver arranged in the vehicle, wherein the receiver receives the tire pressure signal from each tire pressure detector; a plurality of axle rotation amount detectors including an axle rotation amount detector for each axle that detects an axle rotation amount of the associated axle, wherein each of the plurality of axle rotation amount detectors generate pulses indicative of the detected axle rotation amount; and an automatic locator that determines the position of each tire based on the gravitational force information generated by and received from the associated acceleration detector and the pulses generated by and received from the associated axle rotation amount detector, wherein the automatic locator includes a pulse combination determiner that determines whether or not a combination of the pulses generated by and received from each axle rotation amount detector is an expected combination, and a pulse acquisition timing setter that sets an acquisition timing of the pulses for the automatic locator based on the determination of the pulse combination determiner.