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公开(公告)号：US20240190252A1
公开(公告)日：2024-06-13
申请号：US18586737
申请日：2024-02-26
Applicant: DENSO CORPORATION
Inventor： Akihiko ITO , Akira Sumi , Yasuhito Tanabe , Dachao Wang
CPC classification number: B60L3/04 , B60L3/0046 , B60L3/0084 , B60L58/12 , B60L58/19 , H02J7/0024 , H02J7/0048 , H02J7/0063 , H02J7/00712 , H02J7/345 , B60L2240/549
Abstract: A vehicular power supply system includes a sensor unit that detects a battery state of a storage battery and a control unit that performs instruction to perform energization and interruption thereof between the storage battery and the electrical load based on the battery state. The sensor unit includes a detection unit that detects the battery state of the storage battery, a switch drive unit that performs drive control of a switch unit provided between the storage battery and the electrical load, and a control unit that controls the switch drive unit. The control unit switches between the energization and interruption thereof between the storage battery and the electrical load. If determining an abnormality, the control unit determines whether to maintain the energization between the storage battery and the electrical load based on the battery state and switches between the energization and interruption thereof based on the determination.
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公开(公告)号：US20230393207A1
公开(公告)日：2023-12-07
申请号：US18237637
申请日：2023-08-24
Applicant: DENSO CORPORATION
Inventor： Akihiko ITO , Tatsuhiro NUMATA
IPC: G01R31/371 , H04W76/10 , B60L58/18 , B60L58/12 , G01R31/3835
CPC classification number: G01R31/371 , H04W76/10 , B60L58/18 , B60L58/12 , G01R31/3835
Abstract: A battery monitoring apparatus includes a battery ECU, satellite devices each of which measures the voltage at a battery cell in response to a command signal from the battery ECU, and a wireless module which achieves a wireless communication between the battery ECU and each of the satellite devices after a wireless connection between the battery ECU and each of the satellite devices is completed. when receiving a start signal outputted before a start switch for a drive power source of the vehicle is turned on, the wireless module is activated to start the wireless connection between the battery ECU and each of the satellite devices. This establishes and completes the wireless connections faster than when the wireless module is activated simultaneously with turning on of the start switch for the drive power source. This achieves quick monitoring of the state of the battery cells.
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公开(公告)号：US20220236330A1
公开(公告)日：2022-07-28
申请号：US17720768
申请日：2022-04-14
Applicant: DENSO CORPORATION
Inventor： Akihiko ITO , Tatsuhiro NUMATA
IPC: G01R31/371 , H04W76/10 , B60L58/18 , B60L58/12 , G01R31/3835
Abstract: A battery monitoring apparatus includes a battery ECU, satellite devices each of which measures the voltage at a battery cell in response to a command signal from the battery ECU, and a wireless module which achieves a wireless communication between the battery ECU and each of the satellite devices after a wireless connection between the battery ECU and each of the satellite devices is completed. When receiving a start signal outputted before a start switch for a drive power source of the vehicle is turned on, the wireless module is activated to start the wireless connection between the battery ECU and each of the satellite devices. This establishes and completes the wireless connections faster than when the wireless module is activated simultaneously with turning on of the start switch for the drive power source. This achieves quick monitoring of the state of the battery cells.
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