Title:
VEHICLE-MOUNTED DEVICE, VEHICLE-MOUNTED SYSTEM, CONTROL METHOD, AND COMPUTER PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/195342
Kind Code:
A1
Abstract:
This vehicle-mounted device is connected to a plurality of ECUs via a communication bus. The plurality of ECUs include a first ECU and a second ECU connected to the first ECU via a communication line different from the communication bus. The first ECU includes a first transceiver that is connected to the communication bus, and when receiving a control message corresponding to a matching pattern recorded in a register thereof, switches the first ECU from a sleep mode in which power consumption is reduced by limiting function compared with a normal mode to the normal mode, and a second transceiver that is connected to the communication line, and when receiving a predetermined activation signal, switches the first ECU from the sleep mode to the normal mode. The vehicle-mounted device comprises: a storage unit that stores a wake-up pattern for switching the first ECU from the sleep mode to the normal mode; and a control unit that, when a first activation notice indicating that the first ECU has been switched to the normal mode is not received during a predetermined time after the control message corresponding to the wake-up pattern is received from the communication bus, transmits the activation signal to the first ECU via the communication bus, the second ECU, and the communication line.
Inventors:
USHIRO SHOTA (JP)
Application Number:
PCT/JP2023/011310
Publication Date:
October 12, 2023
Filing Date:
March 22, 2023
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H04L41/0803; B60R16/023; H04L12/28; H04L43/08
Foreign References:
| JP2013255034A | 2013-12-19 | |||
| JP2014155172A | 2014-08-25 | |||
| JP2017126828A | 2017-07-20 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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