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公开(公告)号：US12083927B2
公开(公告)日：2024-09-10
申请号：US17678023
申请日：2022-02-23
发明人： Hiroki Sakamoto
CPC分类号： B60L58/18 , B60L58/26 , B60L2240/545
摘要： A power supply system for a vehicle includes a management ECU that controls output power of first and second batteries in a normal mode or an output priority mode, a first cooler that cools the first battery, a second cooler that cools the second battery, and a cooling circuit ECU that controls first and second cooling output of the coolers. In a case where an operation mode of the management ECU is the output priority mode and the first battery has a cooling remaining-capacity, the cooling circuit ECU increases the first cooling output as compared with a case where the operation mode is the normal mode. In a case where the operation mode is the output priority mode and the second battery has a cooling remaining-capacity, the cooling circuit ECU increases the second cooling output as compared with the case where the operation mode is the normal mode.
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公开(公告)号：US11695292B2
公开(公告)日：2023-07-04
申请号：US17678027
申请日：2022-02-23
发明人： Hiroki Sakamoto
CPC分类号： H02J7/00712 , B60L53/20 , B60L58/18 , B60L58/20 , B60L58/26 , G01K3/08 , G01R31/382 , H02J7/0031 , H02J7/0048 , H02J7/0063 , B60L2240/545 , H02J2207/20
摘要： A power supply system includes: a voltage converter that converts a voltage between first and second power circuits; a power controller that controls charging and discharging of first and second batteries; a cooling output controller that controls cooling output for the second battery; a temperature remaining-capacity acquirer that acquires a temperature remaining-capacity T2_mar; and a cooling remaining-capacity acquirer that acquires a cooling remaining-capacity PC2_mar depending on a difference between maximum cooling output and the cooling output of the second cooler. The power controller is configured to stop the voltage converter in a case where at least one of the temperature remaining-capacity T2_mar and the cooling remaining-capacity PC2_mar is less than an associated one of a threshold value for the temperature remaining-capacity and a threshold value for the cooling remaining-capacity and a potential difference between the first and second batteries is equal to or more than a potential difference threshold value.
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公开(公告)号：US11485234B2
公开(公告)日：2022-11-01
申请号：US16893421
申请日：2020-06-04
发明人： Naoto Tagaya , Hirokazu Oguma , Hiroki Sakamoto , Toshihiro Sone , Kenta Suzuki
摘要： A power supply system 1 includes: first power lines (21p, 21n) to which a first battery (B1) is connected; second power lines (31p, 31n) to which a second battery (B2) is connected; a voltage converter (5) which converts voltage; a power converter which converts electric power; a management ECU (71) and converter ECU (73) which operates the voltage converter (5); a smoothing capacitor connected to the first power lines (21p, 21n); and a motor ECU (72) which executes system interruption processing of determining the existence of failure of the contactors (22m, 22s, 32m, 32s) based on a change in voltage of the smoothing capacitor. The management ECU (71) and converter ECU (73) operate the voltage converter (5) so that a state in which the static voltage of the first battery (B1) is higher by at least the determination potential difference than the static voltage of the second battery (B2).
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公开(公告)号：US11728666B2
公开(公告)日：2023-08-15
申请号：US17678029
申请日：2022-02-23
发明人： Hiroki Sakamoto
CPC分类号： H02J7/00712 , B60L50/60 , B60L58/18 , B60L58/26 , H02J7/342 , H02J2207/20
摘要： A power supply system includes: a capacitive first battery; an output-type second battery having a smaller heat capacity than the first battery; a voltage converter that converts a voltage between first and second power circuits; a power converter that converts power between the first power circuit and a drive motor; and a power controller that operates the voltage converter and the power converter. The power controller is configured to: after a start of operation, execute a power pass control under which power is transferred between the first and second batteries, until a total output upper limit Ptot_max of all the batteries exceeds a travelable threshold value Pready1; and subsequent to the power pass control, execute a second priority control under which the second battery is discharged in preference to the first battery, until a first output upper limit P1_max of the first battery exceeds a margin traveling threshold value Pready2.
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公开(公告)号：US11990596B2
公开(公告)日：2024-05-21
申请号：US17867014
申请日：2022-07-18
发明人： Yasutomo Kimura , Jaewon Son , Hiroki Sakamoto , Hiroshi Kano
IPC分类号： H01M10/6563 , H01M10/46 , H01M10/613 , H01M10/625
CPC分类号： H01M10/6563 , H01M10/46 , H01M10/613 , H01M10/625 , H01M2220/20
摘要： A battery unit includes at least one battery module, a cooling device configured to deliver a cooling gas configured to cool the battery module to the battery module, and a junction board mounted with a wiring component configured to electrically connect the battery module and an external device and allow a charging power and/or a discharging power of the battery module to flow. The junction board is disposed above the cooling device at a position where at least a part of the junction board overlaps the cooling device when viewed from an upper-lower direction.
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公开(公告)号：US20220320630A1
公开(公告)日：2022-10-06
申请号：US17678065
申请日：2022-02-23
发明人： Hiroshi Kono , Tetsuya Sugizaki , Hiroki Sakamoto , Jaewon Son
IPC分类号： H01M10/6563 , B60K1/04 , B60L58/26 , H01M50/244 , H01M50/249 , H01M10/613 , H01M10/625
摘要： An electric vehicle includes: a power storage device; a floor member disposed on a bottom portion of a vehicle body; and a cover member fixed to the floor member and forming a storage space for the power storage device between the floor member and the cover member. The electric vehicle includes: an intake port introducing air in a passenger compartment into the storage space; and an exhaust port exhausting air having been heat-exchanged with the power storage device in the storage space into the passenger compartment. The exhaust port is composed of the floor member and the cover member.
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