公开(公告)号：US20150251547A1

公开(公告)日：2015-09-10

申请号：US14640131

申请日：2015-03-06

Applicant: DENSO CORPORATION

Inventor： Tomomi NONOMURA ,  Hiroki FUJII

IPC: B60L11/18

CPC classification number: B60L11/1816 ,  B60L11/1842 ,  B60L11/1862 ,  H02J7/0013 ,  H02J7/007 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126

Abstract: A power supply system is provided. For storage devices, upper limit powers are determined. A control unit includes a target power acquiring section which acquires power requested by an object or power supplied by a charging apparatus as target power of charge/discharge performed by storage devices. A residual capacity acquiring section acquires residual capacities of the storage devices. A first target power allocating section allocates the target power to the storage devices as charge/discharge powers based on the residual capacities. A determining section determines whether or not the allocated charge/discharge powers exceed the upper limit powers of the storage devices. A second target power allocating section reallocates the target power to the storage devices so that the allocated charge/discharge powers do not exceed the upper limit powers, when the determining section determines that any of the charge/discharge powers has exceeded the upper limit power of the related storage device.

Abstract translation: 提供电源系统。 对于存储设备，确定上限功率。 控制单元包括：目标功率获取部，其获取由对象请求的电力或由充电装置提供的电力作为由存储装置执行的充电/放电的目标功率。 剩余容量获取部获取存储装置的剩余容量。 第一目标功率分配部分基于剩余容量将目标功率分配给存储装置作为充电/放电功率。 确定部分确定分配的充电/放电功率是否超过存储装置的上限功率。 第二目标功率分配部分将目标功率重新分配给存储装置，使得分配的充电/放电功率不超过上限功率，当确定部分确定任何充电/放电功率已经超过上限功率时 相关存储设备。

公开(公告)号：US20240094308A1

公开(公告)日：2024-03-21

申请号：US18464303

申请日：2023-09-11

Applicant: DENSO CORPORATION

Inventor： Shuhei YOSHIDA ,  Masaki UCHIYAMA ,  Hiroki FUJII

IPC: G01R31/396 ,  G01R31/388 ,  G01R31/389 ,  G01R31/392

CPC classification number: G01R31/396 ,  G01R31/388 ,  G01R31/389 ,  G01R31/392

Abstract: A detector includes a measurement unit and a battery control unit. The measurement unit measures a measurement value indicating a battery state of a secondary battery. The battery control unit detects a sign of thermal runway in the secondary battery. The measurement unit determines whether a start-up signal is output based on the measurement value in a case where the battery control unit is in a sleep state, and outputs the start-up signal in a case where the start-up signal is output. The battery control unit starts by receiving the start-up signal from the measurement unit when the battery control unit is in the sleep state, executes arithmetic processing on the measurement value received from the measurement unit, and detects the sign of thermal runaway based on a calculated result of the arithmetic processing.

公开(公告)号：US20220196750A1

公开(公告)日：2022-06-23

申请号：US17693679

申请日：2022-03-14

Applicant: DENSO CORPORATION

Inventor： Yuri SANO ,  Hiroki FUJII ,  Koji OHIRA

IPC: G01R31/389 ,  G01R31/36 ,  G01R31/3842 ,  G01R31/374

Abstract: A battery state estimation apparatus calculates a measured DC resistance value of a DC resistance based on a current change amount and a voltage change amount, which are calculated in a predetermined period using measured current value and voltage value. The battery state estimation apparatus further calculates (i) a non-temperature dependent constant and (ii) a constant of a temperature dependent function based on (i) an estimated DC resistance value and (ii) the measured DC resistance value. The estimated DC resistance value is an estimated value of the measured DC resistance value; the estimated DC resistance value is represented as a sum of (i) the non-temperature dependent constant Ra, which indicates a temperature independent component of the DC resistance of the secondary battery, and (ii) the temperature dependent function Rb, which indicates a temperature dependent component of the DC resistance of the secondary battery.

公开(公告)号：US20190334371A1

公开(公告)日：2019-10-31

申请号：US16508597

申请日：2019-07-11

Applicant: DENSO CORPORATION

Inventor： Tetsuya WATANABE ,  Yuki TACHIBANA ,  Hiroki FUJII

IPC: H02J7/18 ,  H02J7/14 ,  B60W10/08

Abstract: A control device comprises an acquisition unit that acquires a current to or from the battery and a voltage of a battery, a calculation unit that calculates an internal resistance of the battery based on the current and the voltage when the regenerative power generation is performed by a rotary electric machine, and a permission determination unit that determines whether to permit an automatic stop of an engine depending on whether restarting of the engine is enabled based on power running drive of the rotary electric machine. The calculation unit calculates a value of the internal resistance each time the regenerative power generation or the power running drive is performed before the engine enters an automatic stop state. The permission determination unit determines whether to permit the automatic stop based on a latest value of the internal resistance among values of the internal resistance calculated by the calculation unit.

公开(公告)号：US20160091572A1

公开(公告)日：2016-03-31

申请号：US14837636

申请日：2015-08-27

Applicant: DENSO CORPORATION

Inventor： Hiroki FUJII

IPC: G01R31/36

CPC classification number: G01R31/3658 ,  G01R19/16542 ,  G01R31/362

Abstract: A battery monitoring system of flying capacitor type detects voltage difference between adjacent unit cells connected in series in battery pack. The system has the unit cells, an open and close section, a first and second capacitor, a first and second switching section, an ADC, and a microcomputer. The microcomputer instructs the open and close section to charge each of the first and second capacitors with each unit cell. After the first and second capacitors have been charged by the corresponding unit cells, the microcomputer instructs the first switching section to connect the first capacitor and the second capacitor in a reverse-polarity series connection. The microcomputer allows the second switching section to supply a voltage at both ends of the first and second capacitors connected in the reverse-polarity series connection, i.e. a voltage difference between the unit cells, to the ADC. The ADC supplies a conversion result to the microcomputer.

Abstract translation: 飞行电容式电池监视系统检测电池组串联连接的相邻单电池之间的电压差。 该系统具有单位电池，开闭部分，第一和第二电容器，第一和第二开关部分，ADC和微型计算机。 微型计算机指示打开和关闭部分为每个单位电池对第一和第二电容器充电。 在第一和第二电容器被相应的单元电池充电之后，微型计算机指示第一开关部分以反极性串联连接第一电容器和第二电容器。 微型计算机允许第二开关部分将以反极性串联连接的第一和第二电容器两端的电压，即单元电池之间的电压差提供给ADC。 ADC向微机提供转换结果。