Power system

Patent metadata

Field	Value
Publication number	US-2023415682-A1
Application number	US-202318336228-A
Country	US
Kind code	A1
Filing date	Jun 16, 2023
Priority date	Jun 28, 2022
Publication date	Dec 28, 2023
Grant date	—

Abstract

A power system includes a central unit, a zone unit capable of communicating with the central unit, and a downstream unit. The zone unit includes a semiconductor switch capable of electrically connecting the downstream unit to a power supply, and a zone power supply driver capable of waking up the zone unit in response to reception of an unique identifier transmitted from the central unit. The downstream unit is woken up when the semiconductor switch of the zone unit enters an ON state.

First claim

What is claimed is:

1 . A power system comprising:
a central unit; a zone unit capable of communicating with the central unit; and a downstream unit, wherein the zone unit comprises
a semiconductor switch capable of electrically connecting the downstream unit to a power supply, and
a zone power supply driver capable of waking up the zone unit in response to reception of an unique identifier transmitted from the central unit, and
wherein the downstream unit is woken up when the semiconductor switch of the zone unit enters an ON state.

2 . The power system according to claim 1 ,
wherein the central unit comprises
one or more central processors,
one or more central memories connected to the one or more central processors,
wherein the zone unit comprises
one or more zone processors, and
one or more zone memories connected to the one or more zone processors,
wherein the central processor executes processing including transmitting a downstream ON command commanding wakeup of the downstream unit to the zone unit, and wherein the zone processor executes processing including turning on the semiconductor switch in response to reception of the downstream ON command.

3 . The power system according to claim 2 ,
wherein the central processor executes processing including:
at the time of transmitting the downstream ON command, determining whether the zone unit is woken up, and
when it is determined that the zone unit is not woken up, transmitting the unique identifier to the zone power supply driver to wake up the zone unit, and then transmitting the downstream ON command.

Assignees

• Subaru Corp
• Toyota Motor Co Ltd
• Nissan Motor
• Honda Motor Co Ltd
• Mitsubishi Motors Corp

Inventors

• Kinoshita Takahiro
• Shirasawa Ryo

Classifications

• H02J13/13

  characterised by the transmission of data to equipment in the power network · CPC title

• B60R16/03 Primary

  for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} · CPC title

• H02J13/00006

  Electricity · mapped topic

• B60R16/0231

  Circuits relating to the driving or the functioning of the vehicle (monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P) · CPC title

• B60R16/02 Primary

  electric {constitutive elements} · CPC title