-
公开(公告)号：US20250105750A1
公开(公告)日：2025-03-27
申请号：US18975468
申请日：2024-12-10
Applicant: DENSO CORPORATION
Inventor： Kazuma SUZUKI , Shunichi KUBO
Abstract: A power conversion device includes low voltage terminals and high voltage terminals. The power conversion device includes: a voltage increasing operation unit increasing the voltage input to the low voltage terminals and outputting the increased voltage to the high voltage terminals, a voltage decreasing operation unit decreasing the voltage input to the high voltage terminals and outputting the decreased voltage to the low voltage terminals, and a control unit performing a temperature increasing operation to increase a temperature of a temperature increasing object, by causing the voltage increasing operation unit to perform a voltage increasing operation and the voltage decreasing operation unit to perform a voltage decreasing operation.
-
公开(公告)号：US20240174089A1
公开(公告)日：2024-05-30
申请号：US18432844
申请日：2024-02-05
Applicant: DENSO CORPORATION
Inventor： Keiya TANI , Shunichi KUBO
IPC: B60L50/51 , B60L50/60 , H02M1/088 , H02M7/5387
CPC classification number: B60L50/51 , B60L50/66 , H02M1/088 , H02M7/53873 , B60L2210/42
Abstract: A power conversion device is applicable to three or more charge storage units connected in series. The power conversion device includes: a rotating electric machine including a stator winding; an inverter including upper and lower arm switches and connecting the stator winding and the charge storage units; a high potential path connected to a high potential terminal of the upper arm switch; a low potential path connected to a low potential terminal of the lower arm switch; a neutral point path connected to a neutral point of the stator winding; and neutral point switches installed individually corresponding to cell connection points each between a positive electrode terminal and a negative electrode terminal of adjacent charge storage units in the charge storage units, the neutral point switches connecting the cell connection points and the neutral point path.
-
公开(公告)号：US20240088702A1
公开(公告)日：2024-03-14
申请号：US18517157
申请日：2023-11-22
Applicant: DENSO CORPORATION
Inventor： Kazuhiro SHIRAKAWA , Keiya TANI , Shunichi KUBO
CPC classification number: H02J7/02 , H02M3/33569 , H02J2207/20
Abstract: An electrical charging apparatus working to electrically charge an electrical storage device includes an electrical power converter and a controller. The electrical power converter converts an alternating-current input voltage into a direct-current voltage and outputs it to the electrical storage device. The controller works to control the electrical power converter to pulsate the charging current supplied from the electrical power converter to the electrical storage device. The controller also controls the electrical power converter to set a pulsation frequency of the charging current to an integral multiple of the frequency of the input voltage and also to bring a phase difference between a zero-crossing time of the input voltage and a time when the charging current is minimized to be smaller than or equal to one-eighth of one cycle of the input voltage.
-
公开(公告)号：US20170117596A1
公开(公告)日：2017-04-27
申请号：US15331370
申请日：2016-10-21
Applicant: DENSO CORPORATION
Inventor： Shunichi KUBO
CPC classification number: H01M10/482 , G01R31/04 , G01R31/396 , H01M10/425 , H01M10/4285 , H01M2220/20
Abstract: An abnormality determination apparatus is applied to a battery pack including blocks composed of battery cells connected in series, and a connecting member that connect blocks to one another in series. In the blocks and the connecting member, a first detection circuit detects a voltage of a first series circuit including the connecting member. A closed-circuit forming unit forms a closed circuit so as to allow a current to flow to the connecting member. The closed circuit includes the connecting member, at least one of the battery cells, and a diode connected in parallel to connecting member. When a charge-discharge current is not flowing to the battery pack, a first abnormality determining unit determines whether or not an open abnormality has occurred in the connecting member, based on a detection value from the first detection circuit in a state in which the closed-circuit forming unit is forming the closed circuit.
-
公开(公告)号：US20240030803A1
公开(公告)日：2024-01-25
申请号：US18372307
申请日：2023-09-25
Applicant: DENSO CORPORATION
Inventor： Ryoya KAZAOKA , Yusuke SHINDO , Shunichi KUBO , Ken TOSHIYUKI
CPC classification number: H02M1/14 , H02M7/5395 , H02P21/22 , H02J7/0047 , B60L15/007 , B60L58/16 , H02P27/08
Abstract: A power converter has a capacitor and a power conversion unit having a series-connected unit composed of an upper arm side switching element and a lower arm side switching element. The capacitor is connected in parallel with the serios connection unit. The power conversion unit supplies electric power to a motor. A controller for the power conversion unit has a frequency characteristics estimation part estimating frequency characteristics of a battery current of the battery when a current is flowing between the power convertor and the battery, a ripple current setting part determining a ripple frequency of a ripple current contained in the battery current based on the frequency characteristics of the battery current, and a control part performing a switching control of the switching elements based on the ripple frequency in order to generate the ripple current.
-
Patent Agency Ranking
公开(公告)号：US20200099111A1
公开(公告)日：2020-03-26
申请号：US16576968
申请日：2019-09-20
Applicant: DENSO CORPORATION
Inventor： Tatsuhiro NUMATA , Shunichi KUBO
Abstract: In a battery monitoring system including a plurality of battery modules each including one or more cells, the battery modules are connected in series to each other. The battery monitoring system monitors the state of each cell based on the voltage value of the cell and the current value of the battery modules. A current detection unit detects the current value. Each voltage detection unit is associated with the corresponding one of the battery modules and detects the voltage value. Each slave unit is associated with the corresponding one of the battery modules, and wirelessly transmits information including synchronous current and voltage values detected by the current detection unit and the voltage detection unit. A master unit receives the information transmitted from the slave units. A central monitoring unit receives the information received by the master unit.
-
公开(公告)号：US20200033412A1
公开(公告)日：2020-01-30
申请号：US16523788
申请日：2019-07-26
Applicant: DENSO CORPORATION
Inventor： Masahiko ITO , Shunichi KUBO , Hayato MIZOGUCHI
IPC: G01R31/364 , G01R1/20 , H01M10/48 , G01R31/3835 , G01R31/396
Abstract: A connection part which connects a terminal part and a processing part include an equalization resistor that is inserted into each main line and a 0-Ω resistor that is a short circuit line for short circuiting a main line of a first terminal and a main line of a second terminal. In the terminal part, the second terminal s unused, and a battery cell adjacent to a high-potential side of a stack bar is connected between the first terminal and a third terminal.
-
公开(公告)号：US20130338871A1
公开(公告)日：2013-12-19
申请号：US13873874
申请日：2013-04-30
Applicant: DENSO CORPORATION
Inventor： Shunichi KUBO , Tsuneo MAEBARA
IPC: G01R31/36
CPC classification number: G01R31/3606 , B60L3/0046 , B60L3/0084 , B60L3/0092 , B60L11/1851 , G01R31/3658 , H01M10/48 , H01M10/486 , H01M2220/20 , H02J7/0021 , H02J7/0031 , Y02T10/7011 , Y02T10/7055
Abstract: A battery condition monitoring device has a control section for monitoring conditions of a high voltage battery on the basis of detection signals detected and transmitted by monitoring ICs. The control section has a main control section and a sub control section. When the main control section is in an abnormal condition, the sub control section detects the conditions of the high voltage battery, and instructs SMRs to turn on and off an electrical connection between the high voltage battery and a vehicle driving electric motor. The SMRs are arranged on connection lines through which the high voltage battery is connected to the vehicle driving electric motor.
Abstract translation: 电池状态监视装置具有控制部，其基于通过监视IC检测和发送的检测信号来监视高电压电池的状况。 控制部具有主控部和副控制部。 当主控制部处于异常状态时，副控制部检测高电压电池的状态，并且指示SMR打开和关闭高电压电池与车辆驱动电动机之间的电连接。 SMR布置在高压电池连接到车辆驱动电动机的连接线上。
-
公开(公告)号：US20220352569A1
公开(公告)日：2022-11-03
申请号：US17863696
申请日：2022-07-13
Applicant: DENSO CORPORATION
Inventor： Naoto YAMASHITA , Masakazu KOUDA , Fumihiko HORI , Shunichi KUBO
Abstract: In a battery system including an assembled battery having a plurality of battery cells connected in series, each of a plurality of monitoring units includes a voltage classification unit configured to classify a terminal voltage between each pair of input terminals in the monitoring unit as a cell voltage or as a zero voltage that is a terminal voltage of substantially zero. The input terminals in each of all or all but one of the monitoring units include at least one specific terminal pair for acquiring the zero voltage at a different position and/or include a different number of specific terminal pairs for acquiring the zero voltage. Each of the plurality of monitoring units further includes an identifier generation unit configured to generate an identifier based on at least one of the position of the at least one specific terminal pair and the number of specific terminal pairs.
-
公开(公告)号：US20220320612A1
公开(公告)日：2022-10-06
申请号：US17844946
申请日：2022-06-21
Applicant: DENSO CORPORATION
Inventor： Tatsuhiro NUMATA , Shunichi KUBO
Abstract: In a battery monitoring system including a plurality of battery modules each including one or more cells, the battery modules are connected in series to each other. The battery monitoring system monitors the state of each cell based on the voltage value of the cell and the current value of the battery modules. A current detection unit detects the current value. Each voltage detection unit is associated with the corresponding one of the battery modules and detects the voltage value. Each slave unit is associated with the corresponding one of the battery modules, and wirelessly transmits information including synchronous current and voltage values detected by the current detection unit and the voltage detection unit. A master unit receives the information transmitted from the slave units. A central monitoring unit receives the information received by the master unit.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.013 seconds)
