公开(公告)号：US09712037B2

公开(公告)日：2017-07-18

申请号：US14490258

申请日：2014-09-18

Applicant: DENSO CORPORATION

Inventor： Syun Miyauchi ,  Tsuneo Maebara ,  Yousuke Asako

IPC: H02M1/32 ,  H02M1/08 ,  H02M7/5387 ,  H03K17/06 ,  H03K17/0812 ,  H03K17/61 ,  H03K17/691 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M1/08 ,  H02M1/32 ,  H02M3/33523 ,  H02M7/5387 ,  H02M2001/0009 ,  H02M2001/0054 ,  H03K17/06 ,  H03K17/08128 ,  H03K17/61 ,  H03K17/691 ,  H03K2217/0036 ,  Y02B70/1491

Abstract: An insulated power supply apparatus is for a power conversion circuit including at least one series connection of an upper arm switching element and a lower arm switching element connected in series to each other. The insulated power supply apparatus includes an upper arm and lower arm transformers for supplying a driving voltage to the upper arm and lower arm switching elements, respectively, and performs control such that the output voltage of a specific one of the secondary coils of the upper arm and lower arm transformers is kept at a target voltage.

公开(公告)号：US09041406B2

公开(公告)日：2015-05-26

申请号：US13933852

申请日：2013-07-02

Applicant: DENSO CORPORATION

Inventor： Hayato Mizoguchi ,  Tsuneo Maebara

IPC: G01R31/00 ,  G01R31/02 ,  A61B5/021 ,  G01L9/00 ,  G01R27/18 ,  G01R1/36

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。

公开(公告)号：US20130322487A1

公开(公告)日：2013-12-05

申请号：US13894880

申请日：2013-05-15

Applicant: DENSO CORPORATION

Inventor： Kazunori Watanabe ,  Tsuneo Maebara ,  Junichi Fukuta

IPC: G01K7/02 ,  G01N25/72

CPC classification number: G01K7/02 ,  G01K1/026 ,  G01K7/01 ,  G01N25/72

Abstract: A temperature detecting device for a power conversion device is provided in which the number of components can be reduced. An exemplary embodiment of the temperature detecting device includes: a plurality of temperature detecting elements that are provided in correspondence with a plurality of temperature detection objects, each temperature detecting element outputting a signal having a correlation with the temperature of the temperature detection object by being supplied power by a common power source; and a temperature detector that detects the temperatures of the temperature detection objects based on the signals having correlation with the temperatures of the temperature detection objects outputted from the temperature detecting elements. The temperature detector detects an average temperature of at least two temperature detection objects among the plurality of temperature detection objects or respective temperatures of the plurality of temperature detection objects based on the output signals.

Abstract translation: 提供了一种用于电力转换装置的温度检测装置，其中可以减少部件的数量。 温度检测装置的一个示例性实施例包括：与多个温度检测对象对应地设置的多个温度检测元件，每个温度检测元件通过供给输出与温度检测对象的温度相关的信号 电源由公共电源供电; 以及温度检测器，其基于与从温度检测元件输出的温度检测对象的温度相关的信号来检测温度检测对象的温度。 温度检测器基于输出信号检测多个温度检测对象中的至少两个温度检测对象的平均温度或多个温度检测对象的相应温度。

公开(公告)号：US20130242438A1

公开(公告)日：2013-09-19

申请号：US13837503

申请日：2013-03-15

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA ,  Tsuneo Maebara

IPC: H02H1/00

CPC classification number: H02H1/0007 ,  H02H7/16 ,  H02P29/027 ,  H02P29/028 ,  H02P29/032 ,  H03K17/0828 ,  H03K2217/0027

Abstract: In a driver, a dissipating unit dissipates, upon a potential difference between input and output terminals of a switching element being lower than a predetermined potential, electrical charge for overcurrent detection between the input and output terminals. The dissipating unit includes a rectifier having a pair of first and second conductive terminals. The first conductive terminal is connected to the input terminal of the switching element. An overcurrent determiner determines that an overcurrent flows between the input and output terminals of the switching element upon determination that electrical charge has not been dissipated by the dissipating unit despite the change of the switching element from the off state to the on state. A failure determiner determines whether there is a failure in the dissipating unit as a function of a potential at a point on the first electrical path from the failure determiner to the second conductive terminal.

Abstract translation: 在驱动器中，耗散单元在开关元件的输入和输出端子之间的电位差低于预定电位时消耗用于输入和输出端子之间的过电流检测的电荷。 散热单元包括具有一对第一和第二导电端子的整流器。 第一导电端子连接到开关元件的输入端。 尽管切换元件从断开状态变为接通状态，但是过电流确定器确定在确定没有由耗散单元耗散电荷的情况下，过电流在开关元件的输入和输出端子之间流动。 故障确定器确定在从故障确定器到第二导电端子的第一电路上的点处的电位是否在耗散单元中是否存在故障。

公开(公告)号：US11171638B2

公开(公告)日：2021-11-09

申请号：US14168388

申请日：2014-01-30

Applicant: DENSO CORPORATION

Inventor： Sho Yamada ,  Yosuke Watanabe ,  Junichi Fukuta ,  Tsuneo Maebara

IPC: H03K17/0412

Abstract: An electronic apparatus is provided which includes switching elements, resonance suppression resistors which have first ends connected to control terminals of the switching elements and second ends having a common connection, an on-drive circuit which has an on-drive resistor and is connected to a drive power circuit, and which is supplied with voltage from the drive power circuit and applies electric charge to the control terminals of the switching elements via the on-drive resistor to turn on the switching elements, and an off-drive circuit which has an off-drive resistor and releases electric charge from the control terminals of the switching elements via the off-drive resistor to turn off the switching elements. A resistance of the off-drive resistor is set to be smaller than a resistance of the resonance suppression resistors. The off-drive circuit releases electric charge from the control terminals of the switching elements not via the resonance suppression resistors.

公开(公告)号：US10054642B2

公开(公告)日：2018-08-21

申请号：US14514594

申请日：2014-10-15

Applicant: DENSO CORPORATION

Inventor： Shunichi Mizobe ,  Tsuneo Maebara ,  Ryotaro Miura ,  Masaya Itou

IPC: G01R31/36 ,  H02J7/04 ,  H02J7/00

CPC classification number: G01R31/3835 ,  G01R31/396 ,  H02J7/047 ,  H02J2001/008 ,  H02J2007/0067

Abstract: A battery monitoring apparatus capable of reducing power consumption. At least one monitoring integrated circuit (IC) is electrically connected to a high-voltage battery formed of a plurality of cells and configured to monitor the high-voltage battery in a plurality of modes of operation. A low-voltage power supply circuit can deliver power of a lower voltage than the power of the high-voltage battery to the at least one monitoring IC. A power supply to the at least one monitoring IC is selected from a group of the high-voltage battery and the low-voltage power supply circuit depending on the mode of operation the at least one monitoring IC.

公开(公告)号：US09543749B2

公开(公告)日：2017-01-10

申请号：US13947495

申请日：2013-07-22

Applicant: DENSO CORPORATION

Inventor： Takeyasu Komatsu ,  Tsuneo Maebara

IPC: H03H7/09 ,  H03K3/00 ,  H03K5/08 ,  H02P6/14 ,  H02H3/08 ,  H03K17/082 ,  H03K17/16

CPC classification number: H02H3/08 ,  H02P6/14 ,  H03K17/0828 ,  H03K17/166

Abstract: In a driver, a clamping module executes a clamping task that clamps an on-off control terminal voltage to be equal to or lower than a clamp voltage for a predetermined time during charging of the on-off control terminal of the switching element. The clamp voltage is lower than an upper limit of the voltage at the on-off control terminal of the switching element. A measuring module measures a parameter value correlated with a sense current correlated with a current flowing between input and output terminals of the switching element. A limiting module discharges the on-off control terminal to limit flow of the current between the input and output terminals if the value of the parameter exceeds a threshold. A setting module variably sets a length of the predetermined time as a function of the parameter value during charging of the switching element's on-off control terminal.

Abstract translation: 在驱动器中，钳位模块执行钳位任务，其在开关元件的通断控制端子的充电期间将开关控制端子电压钳位在钳位电压以下等于或小于钳位电压达预定时间。 钳位电压低于开关元件的开 - 关控制端子处的电压的上限。 测量模块测量与与在开关元件的输入和输出端子之间流动的电流相关的感测电流相关的参数值。 如果参数值超过阈值，则限制模块将导通控制端子放电以限制输入和输出端子之间的电流流动。 设置模块在开关元件的开 - 关控制端子的充电期间可变地设定预定时间的长度作为参数值的函数。

公开(公告)号：US09263878B2

公开(公告)日：2016-02-16

申请号：US13886918

申请日：2013-05-03

Applicant: DENSO CORPORATION

Inventor： Masaya Itou ,  Tsuneo Maebara

IPC: H02H3/20 ,  H01M10/48 ,  B60L3/00 ,  B60L11/18 ,  G01R31/36

CPC classification number: H02H3/202 ,  B60L3/0046 ,  B60L11/1851 ,  G01R31/3658 ,  H01L2924/181 ,  H01M10/48 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/705 ,  H01L2924/00012

Abstract: A circuit protector includes a plurality of detection lines that connect between a battery pack and a monitoring circuit, an overvoltage protection element connected between the detection lines that keeps the voltage applied to the monitoring circuit at a fixed voltage, and a circuit protection element disposed in each detection line that disconnects an electrical link between the monitoring circuit and the battery pack when a current beyond a predetermined current value flows into the detection line. When the excess voltage occurs in the battery pack, the overvoltage protection element maintains between each detection line in a short circuit state, and the circuit protection element disconnects the electrical link between the battery pack and the monitoring circuit by a short-circuit current that flows between the detection lines via the overvoltage protection element.

Abstract translation: 电路保护器包括连接在电池组和监控电路之间的多个检测线，连接在检测线之间的过电压保护元件，其将施加到监控电路的电压保持在固定电压，以及电路保护元件设置在 当超过预定电流值的电流流入检测线时，每个检测线断开监控电路和电池组之间的电连接。 当在电池组中发生过电压时，过电压保护元件在短路状态下保持在每个检测线之间，并且电路保护元件通过流动的短路电流来断开电池组与监控电路之间的电连接 通过过压保护元件在检测线之间。

公开(公告)号：US09041457B2

公开(公告)日：2015-05-26

申请号：US14159636

申请日：2014-01-21

Applicant: DENSO CORPORATION

Inventor： Jyunji Miyachi ,  Tsuneo Maebara ,  Kazunori Watanabe

IPC: H03K17/74 ,  H03K17/10

CPC classification number: H03K17/107 ,  H03K17/74

Abstract: An electronic apparatus includes a switching element which has a control terminal and is driven by controlling voltage of the control terminal, a driving power supply circuit which supplies voltage required for driving the switching element, an on-driving circuit which is connected to the driving power supply circuit and the control terminal of the switching element and is supplied with voltage from the driving power supply circuit, and which applies a constant current to the control terminal of the switching element to charge the control terminal, thereby turning on the switching element, and at least one diode which is connected between the on-driving circuit and the control terminal of the switching element. The on-driving circuit applies a constant current to the control terminal of the switching element through the diode.

Abstract translation: 一种电子设备，包括具有控制端子并通过控制控制端子的电压驱动的开关元件，提供用于驱动开关元件所需的电压的驱动电源电路，连接到驱动电源的导通电路 供电电路和开关元件的控制端子，并且从驱动电源电路提供电压，并且向开关元件的控制端施加恒定电流以对控制端子充电，从而导通开关元件，并且 连接在驱动电路和开关元件的控制端子之间的至少一个二极管。 驱动电路通过二极管向开关元件的控制端施加恒定电流。

公开(公告)号：US08954220B2

公开(公告)日：2015-02-10

申请号：US13873874

申请日：2013-04-30

Applicant: Denso Corporation

Inventor： Shunichi Kubo ,  Tsuneo Maebara

IPC: G01R31/36 ,  B60L11/18 ,  H01M10/48 ,  H02J7/00

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。