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Patent Searching and Data


Title:
ENERGIZATION CONTROL DEVICE AND POWER SUPPLY UNIT
Document Type and Number:
WIPO Patent Application WO/2021/039177
Kind Code:
A1
Abstract:
An energization control device is provided with an inter-system switch (inter-system SW) and a SW control circuit that is an inter-system switch control unit. The inter-system SW switches between conduction and cutoff of an electric current in an inter-system bus. The SW control circuit controls an operating state of the inter-system SW. The SW control circuit has a current acquisition unit (S40), a cutoff control unit (S60), a state acquisition unit (S20), and a threshold change unit (S30). The cutoff control unit deems that a ground fault abnormality has occurred and cuts off the inter-system SW when a current value Ismr acquired by the current acquisition unit rises above an abnormality threshold IsmrTH. The threshold change unit causes the abnormality threshold IsmrTH to be changed according to a sub-power supply voltage Vs (system state value) acquired by the state acquisition unit.

Inventors:
RIKITA RYUNOSUKE (JP)
MASUMOTO YUSUKE (JP)
MATSUSHITA KOUKI (JP)
Application Number:
PCT/JP2020/027591
Publication Date:
March 04, 2021
Filing Date:
July 16, 2020
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H02H3/087; B60L3/00; B60R16/02; B60R16/03; H02H3/16; H02H7/00; H02H7/18; H02J1/00; H02J1/10; H02J7/00; H02J7/16
Foreign References:
JP2019062727A2019-04-18
JP2016128283A2016-07-14
JP2015074348A2015-04-20
JP2011234479A2011-11-17
JP2018196252A2018-12-06
Attorney, Agent or Firm:
YAHAGI Kazuyuki et al. (JP)
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