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公开(公告)号：US20140002096A1
公开(公告)日：2014-01-02
申请号：US13933852
申请日：2013-07-02
Applicant: DENSO CORPORATION
Inventor： Hayato MIZOGUCHI , Tsuneo MAEBARA
IPC: G01R31/02
CPC classification number: G01R31/025 , A61B5/021 , B60L3/0069 , B60L3/12 , B60L11/1864 , B60L2270/147 , G01L9/0041 , G01R1/36 , G01R27/18 , G01R31/006 , Y02T10/7005 , Y02T10/7061
Abstract: An apparatus capable of detecting reduction in insulation resistance between a vehicle body and a high-voltage circuit. In the apparatus, a filter for removing noise included in a potential to ground at a terminal of a coupling capacitor includes a digital filter and an aliasing suppression circuit for suppressing aliasing in the digital filter. In addition, a protection circuit, which protects the digital filter and a determiner operable to detect the reduction in insulation resistance from high-voltage noise generated in the high-voltage circuit, is electrically disposed between a resistor of the aliasing suppression circuit and a signal input of the digital filter, where a potential at a junction between the resistor of the aliasing suppression circuit and the signal input of the digital filter is lower than a potential at the terminal of the coupling capacitor upon application of the high-voltage noise to the apparatus.
Abstract translation: 一种能够检测车身与高压电路之间的绝缘电阻的降低的装置。 在该装置中，用于除去耦合电容器的端子处的接地电位的噪声的滤波器包括数字滤波器和用于抑制数字滤波器中的混叠的混叠抑制电路。 此外，保护数字滤波器的保护电路和可操作以检测绝缘电阻与高压电路中产生的高电压噪声的降低的确定器电气设置在混叠抑制电路的电阻器和信号 数字滤波器的输入，其中混叠抑制电路的电阻和数字滤波器的信号输入之间的结点处的电位低于耦合电容器的端子处的电位，当施加高电压噪声时， 仪器。
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公开(公告)号：US20210247455A1
公开(公告)日：2021-08-12
申请号：US17244376
申请日：2021-04-29
Applicant: DENSO CORPORATION
Inventor： Toshiki KOJIMA , Masakazu KOUDA , Hayato MIZOGUCHI
IPC: G01R31/388 , G01R31/364 , H01M10/48 , H01M10/42
Abstract: A battery monitoring apparatus is used in a battery assembly equipped with a plurality of batteries connected in series with each other. A plurality of measuring lines are mounted on a given layer of a multi-layer substrate and work to measure electrical potentials developed at terminals of the batteries, respectively. The measuring lines are classified into measuring line groups in order of electrical potential from lowest to highest. A plurality of solid patterns are arranged on one of layers of the multi-layer substrate other than the given layer and provided one for each of the measuring line groups. The solid patterns overlap the measuring line groups in planar view in a stacking direction of the multi-layer substrate. The solid patterns are arranged away from each other. The higher electrical potentials of the measuring line groups are, the higher electrical potentials of the corresponding solid patterns are.
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Patent Agency Ranking
公开(公告)号：US20180278067A1
公开(公告)日：2018-09-27
申请号：US15925046
申请日：2018-03-19
Applicant: DENSO CORPORATION
Inventor： Hayato MIZOGUCHI
CPC classification number: H02J7/0021 , B60L3/12 , B60L58/10 , B60L2240/547 , G01R19/16542 , G01R31/3835 , G01R31/396 , H01M10/482 , H01M2220/20 , H02J7/0016
Abstract: A voltage detection apparatus includes a supervisory unit that detects terminal voltage of battery cells that constitute a battery module, a high potential path, a low potential path, a differential amplifier that detects terminal voltage of the battery module. First and third switches are provided on the high potential path and second and fourth switches are provided on the low potential line. The voltage detection apparatus includes a bypass resistor that electrically connects the high potential path and the low potential path.
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公开(公告)号：US20180074127A1
公开(公告)日：2018-03-15
申请号：US15699528
申请日：2017-09-08
Applicant: DENSO CORPORATION
Inventor： Hayato MIZOGUCHI
Abstract: A voltage detection apparatus is provided which is suitable for an assembled battery including a series connection of battery cells. The apparatus includes a monitoring section having battery input sections, a high-potential connection section, a low-potential connection section, and a main voltage detection section; a high-potential electrical path; a low-potential electrical path; a control section that includes a high-potential input section electrically connected to the high-potential connection section, a low-potential input section electrically connected to the low-potential connection section, and a sub voltage detection section that detects a voltage difference between the high-potential input section and the low-potential input section as a terminal voltage of a detection block; a high-potential switch that is provided in the high-potential electrical path to open and close the high-potential electrical path; and a low-potential switch that is provided in the low-potential electrical path to open and close the low-potential electrical path.
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公开(公告)号：US20160202301A1
公开(公告)日：2016-07-14
申请号：US14982635
申请日：2015-12-29
Applicant: DENSO CORPORATION
Inventor： Tomomichi MIZOGUCHI , Hayato MIZOGUCHI
CPC classification number: G01R31/005 , G01R31/007 , G01R31/025 , G01R31/42
Abstract: A ground-fault determination apparatus, which is for use in a vehicle power supply system including a DC power source and a DC supply circuit, includes an acquisition unit that applies an AC signal to the DC supply circuit through a series connection of a resistor and a capacitor to acquire a peak value of the AC signal divided by a resistance of the resistor and an insulation resistance of the DC supply circuit, a ground-fault determination unit that determines presence of a ground-fault based on a comparison between a determination threshold and the peak value, an estimation unit that estimates at least one of a maximum output voltage of the DC supply circuit and a common capacitance between the DC supply circuit and a vehicle body, and a setting unit that sets the determination threshold based on at least one of the maximum output voltage and the common capacitance.
Abstract translation: 一种用于包括直流电源和直流电源电路的车辆供电系统中的接地故障确定装置，包括一个采集单元，该采集单元通过一个电阻器串联连接到该直流电源电路， 电容器，用于获取所述交流信号的峰值除以所述电阻器的电阻和所述直流电源电路的绝缘电阻;接地故障确定单元，其基于所述确定阈值之间的比较来确定接地故障的存在 和所述峰值，估计所述直流电源电路的最大输出电压和所述直流电源电路与车身之间的公共电容中的至少一个的估计单元，以及至少基于所述设定单元设定所述判定阈值的设定单元 最大输出电压和公共电容之一。
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公开(公告)号：US20150377973A1
公开(公告)日：2015-12-31
申请号：US14744414
申请日：2015-06-19
Applicant: DENSO CORPORATION
Inventor： Masahiro INOUE , Hayato MIZOGUCHI , Takeshi IIDA , Hiroki KOBAYASHI
CPC classification number: G01R31/3658 , G01R19/16542 , G01R31/02 , G01R35/00
Abstract: A voltage monitoring device has a capacitor circuit having capacitors connected in series, first switches connecting end terminals of the capacitor circuit to specific electrode terminals of unit cells in a battery pack, second switches connecting remaining electrode terminals of the unit cells to the connection nodes between the capacitors, first voltage detection sections corresponding to each of the capacitors, a second voltage detection section connected to the end terminals of the capacitor circuit, and a microcomputer which selectively performs a first process of charging each capacitor, and a second process of charging the capacitors simultaneously. The respective specific electrode terminals correspond to the unit cells, and are arranged at an interval corresponding to the number of connection nodes formed between the capacitors. The microcomputer performs a polarity switching process of adjusting for the adjacent capacitors to have a same polarity of the charged voltage before performing the second process.
Abstract translation: 电压监视装置具有电容器电路，其具有串联的电容器，第一开关将电容器电路的端子连接到电池组中的单位电池的特定电极端子，第二开关将单元电池的剩余电极端子连接到连接节点之间 电容器，对应于每个电容器的第一电压检测部分，连接到电容器电路的端子的第二电压检测部分和选择性地执行对每个电容器进行充电的第一处理的微计算机， 同时电容。 各个特定电极端子对应于单元电池，并且以与电容器之间形成的连接节点的数量相对应的间隔布置。 在执行第二处理之前，微型计算机进行相邻电容器的极性切换处理，使其具有与充电电压相同的极性。
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公开(公告)号：US20150060423A1
公开(公告)日：2015-03-05
申请号：US14469911
申请日：2014-08-27
Applicant: NIPPON SOKEN, INC. , DENSO CORPORATION , ANDEN CO., LTD.
Inventor： Ken TANAKA , Shinya KATO , Masaya ITOU , Hayato MIZOGUCHI
IPC: B23K9/095
CPC classification number: B23K9/095 , B23K9/0671 , H01H71/501 , H02H7/1213 , H02H7/122
Abstract: A contact welding detection system includes a main circuit including a DC power source, a power-supply unit electrically connected to the DC power source, and a main circuit relay electrically connected between the DC power source and the power-supply unit, a measurement unit measuring an electrical characteristic value on a signal wiring between a signal generation unit and the main circuit. The system further includes a welding determination unit configured to determine the presence or absence of contact welding in the relay on the basis of the electrical characteristic value, and a first forced ground-contacting unit electrically connected between the main circuit and a conductive member connected to ground. The first forced ground-contacting unit is electrically connected to the main circuit at a connection point located on an opposite side of the relay to a connection point at which the signal generation unit is electrically connected to the main circuit.
Abstract translation: 接触焊接检测系统包括：主电路，包括直流电源，电连接到直流电源的电源单元和电连接在直流电源和电源单元之间的主电路继电器;测量单元 测量信号发生单元和主电路之间的信号线路上的电特性值。 该系统还包括：焊接确定单元，其被配置为基于电特性值来确定继电器中是否存在接触焊接;以及电连接在主电路和导电构件之间的第一强制接地单元， 地面。 第一强制接地单元在位于继电器相对侧的连接点处与主电路电连接到信号发生单元电连接到主电路的连接点。
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