Title:
VEHICULAR POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2020036464
Kind Code:
A
Abstract:
To provide a vehicular power supply system capable of stabilizing a power supply system of an automatic operation system.SOLUTION: A vehicular power supply system comprises: a first power supply system that comprises a first DCDC converter (DDC) that performs voltage conversion of a supply power from a high-voltage battery, a first battery that can be charged with an output power of the first DDC, and a first load that includes an automatic operation system operating mainly by a power of the first battery; a second power supply system that comprises a second DDC that performs voltage conversion of a supply power from the high-voltage battery, a second battery that can be charged with an output power of the second DDC, and a second load that includes a steering ECU, a brake ECU and an information communication unit operating mainly by a power of the second battery; and a third power supply system that comprises a connection controller that controls a connection state between the second DDC and a third load, a third battery that can be charged with a power outputted via the connection controller, and the third load that includes a steering ECU, a brake ECU and an information communication unit operating mainly by a power of the third battery.SELECTED DRAWING: Figure 1
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Inventors:
AKUSAWA TAKESHI
Application Number:
JP2018161526A
Publication Date:
March 05, 2020
Filing Date:
August 30, 2018
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H02J7/34; B60L1/00; B60L50/40; B60L50/50; B60L53/00; B60L55/00; B60L58/00; B60R16/03; H02J1/00; H02J7/00; H02M3/00
Domestic Patent References:
| JPH09200902A | 1997-07-31 | |||
| JP2010119257A | 2010-05-27 | |||
| JP2011030363A | 2011-02-10 | |||
| JP2017177857A | 2017-10-05 | |||
| JP2017182137A | 2017-10-05 | |||
| JP2018058444A | 2018-04-12 | |||
| JP6012915B1 | 2016-10-25 |
Foreign References:
| US20180086210A1 | 2018-03-29 |
Attorney, Agent or Firm:
Patent business corporation Ogasawara patent office