US 11,955,826 B2
Vehicle-mounted network system
Sadahisa Yamada, Hiroshima (JP); Yoshimasa Kurokawa, Hiroshima (JP); Tetsuhiro Yamashita, Hiroshima (JP); and Masaaki Shimizu, Hiroshima (JP)
Assigned to MAZDA MOTOR CORPORATION, Hiroshima (JP)
Appl. No. 17/620,745
Filed by Mazda Motor Corporation, Hiroshima (JP)
PCT Filed Jun. 15, 2020, PCT No. PCT/JP2020/023404
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2021/005974, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 2019-127734 (JP), filed on Jul. 9, 2019.
Prior Publication US 2022/0416555 A1, Dec. 29, 2022
Int. Cl. H02J 7/00 (2006.01); B60R 16/02 (2006.01); B60R 16/023 (2006.01); B60R 16/033 (2006.01)
CPC H02J 7/0063 (2013.01) [B60R 16/0215 (2013.01); B60R 16/0238 (2013.01); B60R 16/033 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vehicle-mounted network system including a plurality of electronic devices operated by power supplied from a battery, the system comprising:
a plurality of power supply hubs each arranged in a middle of one of power supply paths between the battery and ones of the electronic devices and connected to the ones of the electronic devices via power supply lines;
a plurality of power supply ICs each provided for an associated one of the power supply hubs and configured to supply and cut off the power to the ones of the electronic devices connected; and
a plurality of power supply control circuits each configured to output, to an associated one of the power supply ICs, a control signal that causes the associated one of the power supply ICs to supply and cut-off the power to the ones of the electronic devices connected, wherein
the electronic devices include
first electronic devices capable of being always supplied with the power from the battery, and
second electronic devices capable of being supplied with the power from the battery through an operation by an occupant of the vehicle;
each of the power supply hubs is connected to the battery or another one of the power supply hubs by one of main power supply lines;
each of the first and second electronic devices is connected to one of the power supply hubs; and
each of the power supply control circuits is configured to output the control signal to the associated one of the power supply ICs and cause the associated one of the power supply ICs to distribute, to the first and second electronic devices, the power supplied to the associated one of the power supply hubs via the one of the main power supply lines.