公开(公告)号：US20130234632A1

公开(公告)日：2013-09-12

申请号：US13796478

申请日：2013-03-12

Applicant: DENSO CORPORATION

Inventor： Takahiro YAMANAKA ,  Toshihisa YAMAMOTO

IPC: B60R16/03

CPC classification number: B60R16/03

Abstract: An in-vehicle power supply system includes a DC power source, a steering power converter, a steering drive control unit, a plurality of voltage-reducing devices, and a voltage-reducing control unit. The steering power converter converts electric power supplied from the DC power source, and provides the electric power converted to a steering assist motor. The steering drive control unit is supplied with electric power from the DC power source, and controls the steering power converter. The voltage-reducing devices are coupled in parallel to each other between the DC power source and the steering power converter. Each of the voltage-reducing devices reduces a power source voltage of the DC power source and generates a reduced voltage when being operated. The voltage-reducing control unit determines operation state or non-operation state of each of the voltage-reducing devices such that at least one of the voltage-reducing devices is in operation at a time.

Abstract translation: 车载电源系统包括直流电源，转向功率转换器，转向驱动控制单元，多个降压装置和降压控制单元。 转向功率转换器转换从直流电源提供的电力，并且提供转换为转向辅助电动机的电力。 转向驱动控制单元由直流电源供电，并控制转向功率转换器。 降压装置在直流电源和转向功率转换器之间彼此并联耦合。 每个降压装置降低直流电源的电源电压，并且在操作时产生降低的电压。 降压控制单元确定每个降压装置的操作状态或非操作状态，使得至少一个降压装置一次运行。

公开(公告)号：US20140111944A1

公开(公告)日：2014-04-24

申请号：US14059809

申请日：2013-10-22

Applicant: DENSO CORPORATION

Inventor： Yoshimichi HARA ,  Toshihisa YAMAMOTO ,  Takahiro YAMANAKA ,  Kouji KAMEYAMA ,  Yuuji KOBAYASHI

IPC: H05K7/20 ,  H05K3/00

CPC classification number: H05K7/2039 ,  H01L23/3677 ,  H01L23/5389 ,  H01L2924/0002 ,  H02M7/003 ,  H02M2001/327 ,  H05K1/186 ,  H05K3/0011 ,  H05K3/0061 ,  H05K3/4614 ,  H05K3/4632 ,  H05K3/4688 ,  H05K2201/10166 ,  Y10T29/49227 ,  H01L2924/00

Abstract: A heat dissipation structure includes a multilayer board and a heat dissipator for dissipating heat generated in an electronic device incorporated in the multilayer board. The multilayer board has multiple base portions layered together and made of electrically insulating material. The base portion located between the electronic device and the heat dissipator has no interlayer connection conductor made of electrically conducting material and serves as an electrically insulating layer for providing electrical isolation between the electronic device and the heat dissipator.

Abstract translation: 散热结构包括多层板和散热器，用于散发在多层板中所包含的电子器件中产生的热量。 多层基板具有层叠在一起并由电绝缘材料制成的多个基部。 位于电子设备和散热器之间的基座部分没有由导电材料制成的层间连接导体，并且用作用于在电子设备和散热器之间提供电隔离的电绝缘层。

公开(公告)号：US20140218869A1

公开(公告)日：2014-08-07

申请号：US14167007

申请日：2014-01-29

Applicant: Denso Corporation

Inventor： Takahiro YAMANAKA ,  Yoshimichi HARA ,  Toshihisa YAMAMOTO ,  Kouji KAMEYAMA ,  Yuuji KOBAYASHI

IPC: H05K7/20 ,  H05K3/00 ,  H05K3/30 ,  H05K3/22 ,  H05K3/10

CPC classification number: H05K7/2039 ,  H01L23/3677 ,  H01L23/3735 ,  H01L23/5389 ,  H01L2924/0002 ,  H02M7/003 ,  H05K1/0265 ,  H05K1/185 ,  H05K3/0058 ,  H05K3/10 ,  H05K3/22 ,  H05K3/303 ,  H05K3/4614 ,  H05K7/209 ,  H05K2201/10166 ,  Y10T29/49126 ,  Y10T29/49139 ,  Y10T29/49155 ,  Y10T29/49165 ,  H01L2924/00

Abstract: A heat radiation structure for an electric device includes: at least one multi-layer substrate including a plurality of base parts made of insulation material and a conductor pattern, which are stacked in a multi-layer structure so that the conductor pattern is electrically coupled with an interlayer connection portion in the base parts; the electric device having at least one of a first electric element built in the at least one multi-layer substrate and a second electric element, which is not built in the multi-layer substrate; and a low heat resistance element opposed to the electric device. The low heat resistance element has a heat resistance lower than the insulation material.

Abstract translation: 电气装置的散热结构包括：至少一个多层基板，包括由绝缘材料制成的多个基部和导体图案，多个基底部分以多层结构堆叠，使得导体图案与 基部的层间连接部; 所述电气装置具有内置在所述至少一个多层基板中的第一电气元件和不设置在所述多层基板中的第二电气元件中的至少一个; 以及与电气装置相对的低耐热元件。 低耐热元件的耐热性低于绝缘材料。

公开(公告)号：US20140021897A1

公开(公告)日：2014-01-23

申请号：US13919171

申请日：2013-06-17

Applicant: DENSO CORPORATION

Inventor： Takahiro YAMANAKA

IPC: H02P6/18

CPC classification number: H02P6/182 ,  B62D5/046 ,  H02M7/5387 ,  H02M2001/0009

Abstract: An inverter circuit converts electric power supplied to a motor by on/off operations of FETs. A microcomputer controls driving of the motor by controlling the on/off operations of the FETs. The microcomputer operates as a current direction determination part. The microcomputer detects a first potential difference, which is a potential difference between both ends of each diode, and a second potential difference, which is a potential difference between both ends of each diode, when both FETs of each phase are in an off-state. The microcomputer can further determine a direction of current flowing in the motor based on the detected first potential difference and the detected second potential difference.

Abstract translation: 逆变器电路通过FET的开/关操作来转换供给电动机的电力。 微型计算机通过控制FET的导通/截止操作来控制电动机的驱动。 微计算机作为电流方向确定部分工作。 当各相的两个FET处于截止状态时，微型计算机检测作为每个二极管的两端之间的电位差的第一电位差和作为每个二极管的两端之间的电位差的第二电位差 。 微型计算机可以基于检测到的第一电位差和检测到的第二电位差进一步确定在电动机中流动的电流的方向。

公开(公告)号：US20140225482A1

公开(公告)日：2014-08-14

申请号：US14174936

申请日：2014-02-07

Applicant: DENSO CORPORATION

Inventor： Yoshimichi HARA ,  Toshihisa YAMAMOTO ,  Takahiro YAMANAKA

IPC: H05K7/20 ,  H02K5/22

CPC classification number: H05K7/20509 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2924/13091 ,  H01L2924/181 ,  H02K5/22 ,  H02K9/22 ,  H02K11/33 ,  H05K7/20854 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

Abstract: An electronic control unit is equipped with a semiconductor module having a semiconductor chip electrically connected to the first circuit pattern and the second circuit pattern. A resin body is wrapped around the semiconductor chip. A first metal plate has a side connected to the semiconductor chip and an other side connected to the first circuit pattern. A radiator projects toward and is connected to the first circuit pattern by a first heat conductor. As a result, heat generated by the semiconductor chip is transmitted to the radiator through the first metal plate, the first circuit pattern, and the first heat conductor during operation of the semiconductor module.

Abstract translation: 电子控制单元配备有具有电连接到第一电路图案和第二电路图案的半导体芯片的半导体模块。 树脂体被包裹在半导体芯片周围。 第一金属板的一侧连接到半导体芯片，另一侧连接到第一电路图案。 散热器通过第一导热体向第一电路图形投影并连接到第一电路图案。 结果，在半导体模块的工作过程中，由半导体芯片产生的热量通过第一金属板，第一电路图案和第一导热体传递到散热器。

公开(公告)号：US20140222290A1

公开(公告)日：2014-08-07

申请号：US14053928

申请日：2013-10-15

Applicant: DENSO CORPORATION

Inventor： Takahiro YAMANAKA ,  Nobuhisa YAMAGUCHI

IPC: H02P6/18 ,  B62D5/04

CPC classification number: B62D5/046

Abstract: Comparators of a rotary electric machine control apparatus acquire terminal voltages of each phase, which are developed at junction points between high-potential side FETs and low-potential side FETs, respectively. In switching over ON and OFF of the high-potential side FETs and the low-potential side FETs, a control unit determines a flow direction of a phase current supplied to each phase coil based on a terminal voltage developed in a dead time period, in which a the high-potential side FET and the low-potential side FET forming a pair are both turned off. Thus, the flow direction of each phase current is determined in a simple configuration.

Abstract translation: 旋转电机控制装置的比较器分别获得在高电位侧FET和低电位侧FET之间的接合点处产生的各相的端子电压。 在切换高电位侧FET和低电位侧FET的ON和OFF时，控制单元基于在死区时间内产生的端电压来确定提供给各相线圈的相电流的流向， 形成一对的高电位侧FET和低电位侧FET都断开。 因此，以简单的结构确定各相电流的流动方向。

公开(公告)号：US20130181639A1

公开(公告)日：2013-07-18

申请号：US13709326

申请日：2012-12-10

Applicant: DENSO CORPORATION

Inventor： Takahiro YAMANAKA ,  Toshihisa YAMAMOTO

IPC: H02P3/14

CPC classification number: H02P3/14 ,  B62D5/046 ,  B62D5/0481 ,  H02P6/24

Abstract: A first drive circuit of a motor drive apparatus drives a motor by converting electric power of a battery. A relay is connected in high potential line between the battery and an inverter. A diode is connected in parallel to the relay. The diode conducts a current in a regeneration direction, which is from a high potential side of the inverter to a high potential electrode of the battery, under a state that the relay is in the off-state. Thus, an inductive voltage, which is generated by the motor when a reverse input torque is applied from a load side, is led to the battery through the diode, and switching elements forming the inverter are protected from the inductive voltage.

Abstract translation: 电机驱动装置的第一驱动电路通过转换电池的电力来驱动电动机。 继电器连接在电池和逆变器之间的高电位线路中。 二极管与继电器并联连接。 在继电器处于截止状态的状态下，二极管在从逆变器的高电位侧向电池的高电位电极的再生方向导通电流。 因此，当从负载侧施加反向输入转矩时由电动机产生的感应电压通过二极管被引导到电池，并且形成逆变器的开关元件被保护免受感应电压的影响。

公开(公告)号：US20190047492A1

公开(公告)日：2019-02-14

申请号：US16076902

申请日：2016-12-26

Applicant: DENSO CORPORATION

Inventor： Takahiro YAMANAKA

IPC: B60R16/023 ,  G06F11/07 ,  B62D6/00 ,  B62D5/04 ,  G06F1/24

Abstract: An abnormality monitoring device includes a control unit and a monitoring unit. The control unit includes a self-diagnosis circuit configured to perform a self-diagnosis processing during which other processing is inhibited. The monitoring unit includes an abnormality monitoring circuit and a reset circuit. The abnormality monitoring circuit is configured to perform an abnormality monitoring of the control unit. The reset circuit is configured to reset the control unit when the abnormality monitoring circuit decides an abnormality of the control unit. The abnormality monitoring circuit is configured to determine whether the self-diagnosis processing is finished, disable the abnormality monitoring of the control unit during the self-diagnosis processing, and start the abnormality monitoring of the control unit when the self-diagnosis processing is determined to be finished. Accordingly, the abnormality of the control unit is accurately monitored.