Title:
ON-VEHICLE NETWORK SYSTEM AND ELECTRONIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/220564
Kind Code:
A1
Abstract:
As the level of automatic driving of automobiles improves, there is now demand for travel using a system that does not involve a driver, and enhancing the reliability of such systems is essential. One method for enhancing the reliability is redundancy of a power source. In order to construct a redundant power source network, a redundant power source network is required in addition to a primary power source network, and thus the number of wires of the network will increase. Further, since the power source wiring uses cables with thick core wires in order to handle large currents, the weight of the cables increases and this can lead to a deterioration of the fuel efficiency of the vehicle. In the present invention, an electronic control device (11-B) receives electric power, which is supplied from a power source storage unit (12-A) via another electronic control device (11-A), as a redundant power source in a power source superposition data wiring (16). In other words, the electronic control device (11-B) receives electric power that is supplied or transmitted from both a power source storage unit (12-B) which is directly connected and the power source storage unit (12-A) which is indirectly connected.
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Inventors:
KOGO KENJI (JP)
MAEDA KOJI (JP)
MAEDA KOJI (JP)
Application Number:
PCT/JP2021/002154
Publication Date:
November 04, 2021
Filing Date:
January 22, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
B60R16/023; B60R16/02; H04B3/54
Domestic Patent References:
| WO2017222077A1 | 2017-12-28 | |||
| WO2014188633A1 | 2014-11-27 |
Foreign References:
| JP2010258769A | 2010-11-11 | |||
| JP2019146415A | 2019-08-29 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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