Title:
ROAD SURFACE CONDITION DETERMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/168031
Kind Code:
A1
Abstract:
A tire-side device (1) is provided with: a vibration detection unit (10) that outputs a detection signal corresponding to the magnitude of tire vibration; a control unit (11) that performs sensing to create road surface data indicating a road surface condition that appears in the waveform of the detection signal; and a first data communication unit (12) that transmits the road surface data. Furthermore, a vehicle-body-side system (2) is provided with: a second data communication unit (24) that receives the road surface data transmitted from the first data communication unit; and a road surface determination unit (25) that determines the condition of the road surface of the road that the vehicle is travelling on on the basis of the road surface data. In addition, sensing is carried out by the control unit under different sensing conditions at the tire-side device of at least one tire among a plurality of tires and the tire-side device of at least one other tire among the plurality of tires, and road surface data created on the basis of the different sensing conditions is transmitted from the first data communication unit.
Inventors:
SUZUKI YOICHIRO (JP)
MORI MASASHI (JP)
SEKIZAWA TAKATOSHI (JP)
MORI MASASHI (JP)
SEKIZAWA TAKATOSHI (JP)
Application Number:
PCT/JP2019/007568
Publication Date:
September 06, 2019
Filing Date:
February 27, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60W40/06; B60C19/00
Foreign References:
| JP2016112967A | 2016-06-23 | |||
| JP2011001003A | 2011-01-06 | |||
| JP2010200556A | 2010-09-09 | |||
| JP2017226322A | 2017-12-28 | |||
| JP2012153290A | 2012-08-16 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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