公开(公告)号：US20250038658A1

公开(公告)日：2025-01-30

申请号：US18436563

申请日：2024-02-08

Applicant: DENSO TEN Limited

Inventor： Seiya MORIKAWA ,  Takeshi MATSUMOTO

IPC: H02M3/04 ,  H02H7/22

Abstract: A power supply control device includes: a first switch coupled between a main power supply and a load; a second switch coupled between a sub-power supply and the load; and a controller configured to perform on/off control of the first switch and the second switch. The controller is configured to: turn off the first switch and turn on the second switch, in response to an ignition switch being turned off; and turn off the second switch and then turn on the first switch, in response to the ignition switch being turned on.

公开(公告)号：US20250001868A1

公开(公告)日：2025-01-02

申请号：US18436534

申请日：2024-02-08

Applicant: DENSO TEN Limited

Inventor： Daiki HAKUSHIMA ,  Takeshi MATSUMOTO ,  Tomoyuki KATO

IPC: B60L3/00

Abstract: A power supply control device includes: a controller configured to perform a diagnosis of a degree of deterioration of a backup power supply that supplies electric power to a load of a vehicle when a main power supply that supplies electric power to the load fails. The controller is configured to start the diagnosis before a user gets in the vehicle, when detecting an occurrence of an event indicating that the user is to get in the vehicle.

公开(公告)号：US20240326598A1

公开(公告)日：2024-10-03

申请号：US18615782

申请日：2024-03-25

Applicant: DENSO TEN Limited

Inventor： Takeshi MATSUMOTO

IPC: B60L3/04 ,  B60L3/00 ,  H02J1/08 ,  H02J9/06

CPC classification number: B60L3/04 ,  B60L3/0046 ,  H02J1/086 ,  H02J9/061

Abstract: A controller of a power supply control is configured to: in response to a failure of a main power supply being detected, execute a fail-safe control in which a connector is interrupted and electric power from a backup power supply is supplied to a second load; in response to a state value indicating a charging state of the backup power supply decreasing to a first threshold during the fail-safe control, execute an advance notice process for giving a user advance notice that a vehicle will be stopped; and in response to the state value decreasing to a second threshold which is smaller than the first threshold and which indicates a safety limit of the backup power supply, execute a power supply stop process for stopping supply of the electric power from the backup power supply.

公开(公告)号：US20240223120A1

公开(公告)日：2024-07-04

申请号：US18390003

申请日：2023-12-20

Applicant: DENSO TEN Limited

Inventor： Takeshi MATSUMOTO

IPC: H02P29/024 ,  B60R16/033

CPC classification number: H02P29/024 ,  B60R16/033 ,  H02J7/1423 ,  H02J2310/48

Abstract: A power supply control device includes: a connection device provided in an inter-system line that connects a first system and a second system; and a controller configured to control the connection device. The controller is configured to control the connection device to cut off the inter-system line in response to a power supply failure of the first system or the second system being detected, execute a confirmation process for confirming a failed system based on changes in voltages of the first system and the second system in a first period, and execute, in a case where the failed system cannot be confirmed in the confirmation process, an estimation process for estimating, as an abnormal system, a system with a greater possibility to be abnormal, based on changes in voltages of the first system and the second system in a second period longer than the first period.

公开(公告)号：US20230344216A1

公开(公告)日：2023-10-26

申请号：US18187787

申请日：2023-03-22

Applicant: DENSO TEN Limited

Inventor： Takeshi MATSUMOTO

IPC: H02H3/16 ,  H02H3/02

CPC classification number: H02H3/16 ,  H02H3/021

Abstract: A power supply control apparatus includes: a first connection device provided in an inter-system line that connects a first system as defined herein and a second system as defined herein; a second connection device as defined herein; and a controller that brings the first connection device and the second connection device into a disconnected state and performs a first fail-safe control using the electric power of the first power supply when a ground fault of the second system is detected, and that brings the first connection device into a conductive state while keeping the second connection device in a disconnected state and performs a second fail-safe control using the electric power of the second power supply when a failure of the first power supply is detected during the first fail-safe control.

公开(公告)号：US20230155411A1

公开(公告)日：2023-05-18

申请号：US17698682

申请日：2022-03-18

Applicant: DENSO TEN Limited

Inventor： Takeshi MATSUMOTO ,  Daiki HAKUSHIMA

IPC: H02J9/06 ,  B60L3/00

CPC classification number: H02J9/061 ,  H02J9/068 ,  B60L3/003 ,  B60L2210/10 ,  B60L53/20

Abstract: A power supply apparatus includes: a first system configured to supply electric power of a first power supply to a first load; a second system configured to supply electric power of a second power supply to a second load; a connection unit capable of connecting and disconnecting the first system and the second system; a second system switch capable of connecting the second power supply to the second system; and an inspection unit configured to perform inspection as to whether electric power is capable of being supplied from the second power supply to the second load, and, when a voltage of the second power supply is not equal to a voltage of the first power supply, the inspection unit controls the first power supply as defined herein and conducts the second system switch to perform the inspection by stepping down or up the voltage of the first power supply.

公开(公告)号：US20220263323A1

公开(公告)日：2022-08-18

申请号：US17478741

申请日：2021-09-17

Applicant: DENSO TEN Limited

Inventor： Daiki HAKUSHIMA ,  Takeshi MATSUMOTO ,  Hiroshi MATSUMOTO ,  Keiichi YONEZAKI ,  Ryuki MAEDA

IPC: H02J7/00 ,  B60R16/033 ,  H02J7/34

Abstract: A power supply device includes: a first system connected to a first load; a second system connected to a second load; an inter-system switch configured to connect and disconnect the first system and the second system to and from each other; a controller configured to normally supply power of a first power supply to the first system and the second system and, in response to a fault of the first system being detected, turn off the inter-system switch to supply power of a second power supply to the second system; and a backup circuit which includes a discharge regulation unit configured to regulate discharging of the second power supply.