When a road surface condition does not change, road surface data is transmitted by a tire-mounted sensor at a rate of once every time a tire rotates a plurality of times, in order to reduce the power consumption from a power source. Further, when the road surface condition changes, the road surface data is transmitted by the tire-mounted sensor with a transmission interval that is shorter than when the road surface condition does not change. In this way, reducing the amount of road surface data that is transmitted when the road surface condition does not change makes it possible to reduce the amount of power required for data transmission. Further, using a transmission interval that is shorter when the road surface condition changes than when the road surface condition does not change makes it possible for changes in the road surface condition to be conveyed rapidly to a vehicle body side system.
TIRE-MOUNTED SENSOR AND ROAD SURFACE CONDITION ESTIMATION DEVICE INCLUDING SAME
2019-07-25
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B60C VEHICLE TYRES , Fahrzeugreifen |
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