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Patent Searching and Data


Title:
CONTROL DEVICE FOR IN-VEHICLE POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/189220
Kind Code:
A1
Abstract:
This in-vehicle power supply device comprises: a lead storage battery (11) and a lithium ion storage battery (12) that are connected in parallel to a rotating electric machine unit (14), respectively; and a first switch (SW1) that is provided on a first electric path (L1) connecting the lead storage battery (11) and the rotating electric machine unit (14). This control device (21) turns on the first switch (SW1) when the in-vehicle power supply device is started. The control device (21) comprises: a voltage determination unit that, when the in-vehicle power supply device is started, determines whether or not a storage battery-side voltage between the first switch (SW1) and the lead storage battery (11) on the first electric path (L1) is in a high voltage state in which the voltage is larger than a predetermined voltage; and a prohibition unit that prohibits the turning-on of the first switch (SW1) when it is determined that the voltage in the high voltage state.

Inventors:
KATASE TOSHI (JP)
Application Number:
JP2020/008107
Publication Date:
September 24, 2020
Filing Date:
February 27, 2020
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H02H3/087; B60R16/03; H02J7/00; H02J7/34
Foreign References:
JP2019030198A2019-02-21
JP2003018882A2003-01-17
JP2007274828A2007-10-18
JP2002247711A2002-08-30
JP2017114439A2017-06-29
US20170149261A12017-05-25
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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