Title:
車両用バックアップ電源装置
Document Type and Number:
Japanese Patent JP7107159
Kind Code:
B2
Abstract:
To provide a vehicle backup power supply device which can back up a vehicle auxiliary machine even when a power supply line fails.SOLUTION: A vehicle backup power supply device 40 is connected to a vehicle power supply (21) by an ignition line 60 through the ignition line 60, and includes a power storage part 41, a step-down circuit 44 and a step-up circuit 45 for charging the power storage part 41 from the vehicle power supply (21) and outputting to vehicle auxiliary machines (30, 31, 32) from the power storage part 41, MOS transistors 42, 43 for interrupting a power supply path L10 from the vehicle power supplies (20, 21) to the vehicle auxiliary machines (30, 31, 32), and a controller 46 for controlling a charging/discharging circuit parts (44, 45) and cut-off switches (42, 43). When the vehicle stops and an ignition switch SW is turned off, operation of the vehicle backup power supply device 40 stops.SELECTED DRAWING: Figure 1
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Inventors:
Yokoyama Wataru
Koji Muta
Takara
Koji Muta
Takara
Application Number:
JP2018197473A
Publication Date:
July 27, 2022
Filing Date:
October 19, 2018
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
B60R16/033; H02J7/34
Domestic Patent References:
| JP2007076460A | ||||
| JP2008278564A | ||||
| JP2009248885A | ||||
| JP2007228199A |
Foreign References:
| US20120013175 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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