公开(公告)号：US20140062361A1

公开(公告)日：2014-03-06

申请号：US14012252

申请日：2013-08-28

Applicant: Denso Corporation

Inventor： Tomotaka SUZUKI ,  Ryotaro MIURA ,  Takeyasu KOMATSU

IPC: H03K17/042 ,  H02P6/14

CPC classification number: H03K17/04206 ,  H02M1/08 ,  H02M7/5387 ,  H02M2001/0029 ,  H02P6/14

Abstract: In a driver, a discharging module discharges, at a discharging rate, the on-off control terminal of a switching element in response to a drive signal being shifted from an on state to an off state. A changing module determines whether a condition including a level of a sense signal being higher than a threshold level during the on state of the drive signal is met, and changes the discharging rate of the on-off control terminal in response to the drive signal being shifted from the off state to the on state upon determination that the condition is met. A loosening module loosens the condition after a lapse of a period since the shift of the drive signal from the off state to the on state in comparison to the condition immediately after the shift of the drive signal from the off state to the on state.

Abstract translation: 在驱动器中，放电模块响应于驱动信号从接通状态转换到断开状态而以放电速率放电开关元件的通断控制端子。 改变模块确定在驱动信号的接通状态期间是否满足包括感测信号的电平高于阈值电平的条件，并且响应于驱动信号来改变开 - 关控制终端的放电速率 在确定条件得到满足后，从关闭状态转为开状态。 与驱动信号从断开状态转换到接通状态之后的状态相比，从驱动信号从断开状态转换到接通状态经过一段时间后，松动模块松开状态。

公开(公告)号：US20140035629A1

公开(公告)日：2014-02-06

申请号：US13959907

申请日：2013-08-06

Applicant: DENSO CORPORATION

Inventor： Hiroyuki MORITA ,  Tsuneo MAEBARA ,  Takeyasu KOMATSU ,  Ryotaro MIURA ,  Tomotaka SUZUKI

IPC: H03K17/06

CPC classification number: H03K17/063

Abstract: In a driver apparatus for driving a voltage-controlled switching element, an absolute value of a voltage difference between a voltage at a reference terminal that is one of terminals of a current path of the switching element and a voltage at the switching control terminal of the switching element is clamped at a clamping voltage greater than a threshold voltage. A voltage greater than the threshold voltage applied to the switching control terminal allows the switching element to be turned on. When the current flowing through the switching element becomes equal to or greater than a clamp threshold after the switching element transitions from an off-state to an on-state, a voltage-drop-rate at which the absolute value is decreased to the clamping voltage is decreased.

Abstract translation: 在用于驱动压控开关元件的驱动器装置中，作为开关元件的电流路径的端子之一的基准端的电压与开关元件的开关控制端的电压之间的电压差的绝对值 开关元件被钳位在大于阈值电压的钳位电压。 大于施加到开关控制端子的阈值电压的电压允许开关元件导通。 当开关元件从断开状态转变为导通状态时，流过开关元件的电流变得等于或大于钳位阈值时，绝对值降低到钳位电压的电压降率 减少。

公开(公告)号：US20190064272A1

公开(公告)日：2019-02-28

申请号：US16171461

申请日：2018-10-26

Applicant: DENSO CORPORATION

Inventor： Ryotaro MIURA ,  Yukihiro TOMONAGA

IPC: G01R31/327 ,  G01R31/36 ,  G01R19/165 ,  H02J7/00 ,  H01M10/44 ,  H01M10/48

Abstract: In an assembled battery monitoring system, a voltage monitoring apparatus monitors voltages of battery cells of an assembled battery. Discharging resistance elements and RC filters are correspondingly coupled between the battery cells and the voltage monitoring apparatus. Discharging switches are disposed inside of the voltage monitoring apparatus correspondingly to the battery cells. The discharging resistance elements are each disposed on a discharging path at a position that prohibits discharging of charges stored in a capacitor of the corresponding RC filter. A fault diagnosis device simultaneously turns on two discharging switches, which are apart from each other across at least two discharging switches, and determines that any of the discharging switches between the two discharging switches simultaneously turned on has a fault, when a terminal voltage of any of the battery cells that are located between the two discharging switches simultaneously turned on changes over a predetermined voltage.

公开(公告)号：US20180088178A1

公开(公告)日：2018-03-29

申请号：US15706108

申请日：2017-09-15

Applicant: DENSO CORPORATION

Inventor： Takashi INAMOTO ,  Tsuneo MAEBARA ,  Ryotaro MIURA

IPC: G01R31/36

CPC classification number: G01R31/3835 ,  G01R31/396

Abstract: A voltage-detecting device applied to a battery pack includes a serially connected body of plural battery cells.Serially connected bodies of at least two of the battery cells of the battery pack form detection blocks; each of the respective battery cells of a detection block, or a serially connected body of a number of battery cells in a detection block that is less than the number of the battery cells of the detection block is taken to be a battery for which voltage is to be detected. Monitoring units includes a main voltage-detecting unit for detecting terminal voltage of each of the batteries; a positive-electrode-side input unit electrically connected to the positive-electrode side of a detection block; a negative-electrode-side input unit electrically connected to the negative-electrode side thereof; and sub voltage-detecting units for detecting terminal voltage of the detection blocks as the state of the battery pack.

公开(公告)号：US20150054519A1

公开(公告)日：2015-02-26

申请号：US14445383

申请日：2014-07-29

Applicant: DENSO CORPORATION

Inventor： Yukihiro TOMONAGA ,  Tetsuya MAKIHARA ,  Kazutaka HONDA ,  Nobuyoshi OSAMURA ,  Ryotaro MIURA

IPC: G01R31/36

CPC classification number: G01R31/3658 ,  G01R31/362

Abstract: A route switching circuit includes: a pair of normal detection routes that output voltages of a positive side connection point and a negative side connection point, which are different from each other, in multiple batteries for constituting an assembled battery; and a pair of diagnosis detection routes that output the voltages of the positive side connection point and the negative side connection point, and confirm a connection state of the normal detection routes by using the normal detection routes, which output at least one of a voltage of a positive side battery connected to a positive side from the positive side connection point and a voltage of a negative side battery connected to a negative side from the negative side connection point.

Abstract translation: 路线切换电路包括：在用于构成组电池的多个电池中输出彼此不同的正侧连接点和负侧连接点的电压的一对正常检测路线; 以及一对诊断检测路径，其输出正侧连接点和负侧连接点的电压，并且通过使用正常检测路径来确认正常检测路径的连接状态，该正常检测路径输出以下中的至少一个： 从正侧连接点与正极侧连接的正极侧电池和从负极侧连接点与负极侧连接的负极侧电池的电压。

公开(公告)号：US20130229208A1

公开(公告)日：2013-09-05

申请号：US13783983

申请日：2013-03-04

Applicant: DENSO CORPORATION

Inventor： Yoshiyuki HAMANAKA ,  Ryotaro MIURA

IPC: H03K17/081

CPC classification number: H03K17/081 ,  H03K17/18 ,  H03K2217/0063 ,  H03K2217/0072

Abstract: A first-path connects an input-terminal and an output-terminal of a high-potential-side switching-element and includes a high-potential-side rectifying-device and a high-potential-side passive-element. A second-path connects the output-terminal of the high-potential-side switching-element and the output-terminal of a low-potential-side switching-element and includes a low-potential-side rectifying-device and a low-potential-side passive-element. A high-potential-side applying-unit applies voltage to a connecting point between the high-potential-side rectifying-device and the high-potential-side passive-element. A high-potential-side determining-unit determines that an overcurrent is flowing between the input-terminal and the output-terminal of the high-potential-side switching-element by using a first-value. A limiting-unit limits a current between the low-potential-side rectifying-device and the output-terminal of the high-potential-side switching-element if the overcurrent is flowing. A low-potential-side applying-unit applies voltage to a connecting point between the low-potential-side rectifying-device and the low-potential-side passive-element. A low-potential-side determining-unit determines that an overcurrent is flowing between the input-terminal and the output-terminal of the high-potential-side or low-potential-side switching element by using a second-value.

Abstract translation: 第一路径连接高电位侧开关元件的输入端子和输出端子，并且包括高电位侧整流装置和高电位侧无源元件。 第二路径连接高电位侧开关元件的输出端子和低电位侧开关元件的输出端子，并且包括低电位侧整流装置和低电位侧整流装置 无源元件。 高电位侧施加单元向高电位侧整流装置和高电位侧无源元件之间的连接点施加电压。 高电位侧确定单元通过使用第一值来确定过电流在高电位侧开关元件的输入端子和输出端子之间流动。 如果过电流流动，限制单元限制低电位侧整流装置与高电位侧开关元件的输出端之间的电流。 低电位侧施加单元向低电位侧整流装置与低电位侧无源元件之间的连接点施加电压。 低电位侧确定单元通过使用第二值来确定过电流在高电位侧或低电位侧开关元件的输入端子和输出端子之间流动。

公开(公告)号：US20130207712A1

公开(公告)日：2013-08-15

申请号：US13760419

申请日：2013-02-06

Applicant: DENSO CORPORATION

Inventor： Tomotaka SUZUKI ,  Yoshiyuki HAMANAKA ,  Ryotaro MIURA

IPC: H03K17/16

CPC classification number: H03K17/165

Abstract: In a drive unit for a reverse-conducting switching element which is a driven switching element, a process to transfer electric charges to a conductive control terminal of the driven switching element is performed on the basis of a turn-on command or a turn-off command, thereby turning on and off the driven switching element. A transfer rate of the electric charges is changed in a period from when the transfer of the electric charges to the conductive control terminal is started until when it is completed. While judged that forward current flows in a free-wheel diode, the electric charges are inhibited from being charged to the conduction control terminal which corresponds to the free-wheel diode in which the forward current is judged to flow. While the electric charges are inhibited from being charged to the conductive control terminal, a change of the transfer rate is disabled.

Abstract translation: 在作为驱动开关元件的反向导通开关元件的驱动单元中，基于导通命令或关断来执行将电荷转移到从动开关元件的导电控制端子的处理 命令，从而打开和关闭从动开关元件。 在从开始电荷传导到导电控制端子直到完成电力的时间段期间，电荷的传送速率发生变化。 在判断正向电流在续流二极管中流动的情况下，禁止电荷充电到对应于正向电流被判定流过的续流二极管的导通控制端子。 当电荷被禁止被充电到导电控制端子时，传输速率的改变被禁用。