Title:
COMMUNICATION SYSTEM FOR VEHICLE AND ON-VEHICLE UNIT
Document Type and Number:
Japanese Patent JP2017078310
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a communication system for a vehicle, capable of accurately determining whether or not a mobile unit is present in a cabin regardless of rotational position, even in a case where an antenna that transmits a signal for determining whether or not the mobile unit is in a cabin is disposed at a movable part of a vehicle.SOLUTION: A communication system for a vehicle includes an on-vehicle unit which transmits a signal through a plurality of antennas provided at a vehicle, and a mobile unit which receives the signal that is transmitted from the on-vehicle unit and transmits a response signal according to the received signal. The on-vehicle unit receives the response signal that is transmitted from the mobile unit, and based on the received response signal, determines whether or not the mobile unit is in a cabin. At least one antenna is arranged at a movable part supported rotatably around a shaft part 52a provided at the vehicle, and includes a rod-like magnetic body core 31a, and a coil 31b wound around the magnetic body core 31a, with a length direction of the magnetic body core 31a being almost parallel to the shaft part 52a.SELECTED DRAWING: Figure 3
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Inventors:
HAMADA YOSHIHIRO
SABURI MAKOTO
YOSHIDA RYOTA
SABURI MAKOTO
YOSHIDA RYOTA
Application Number:
JP2015207268A
Publication Date:
April 27, 2017
Filing Date:
October 21, 2015
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
SUMITOMO WIRING SYSTEMS
AUTO NETWORK GIJUTSU KENKYUSHO KK
SUMITOMO WIRING SYSTEMS
AUTO NETWORK GIJUTSU KENKYUSHO KK
International Classes:
E05B49/00; B60R25/24; H01Q1/22; H01Q1/32; H01Q7/06; H04B1/59
Domestic Patent References:
| JP2007205004A | 2007-08-16 | |||
| JPH11321471A | 1999-11-24 | |||
| JP2000091841A | 2000-03-31 |
Attorney, Agent or Firm:
Hideno Kono
Nobuo Kono
Nobuo Kono