公开(公告)号：US20180195933A1

公开(公告)日：2018-07-12

申请号：US15740507

申请日：2016-06-08

Applicant: DENSO CORPORATION

Inventor： Go MIYAGAWA ,  Kouji ANDOH ,  Masayuki TAMURA ,  Hirokatsu IMAGAWA ,  Takao MISHIMA ,  Hideki YAMADA ,  Masahiro YAMAMOTO

IPC: G01M15/10 ,  G01N15/06 ,  G01N27/04 ,  F01N11/00

CPC classification number: G01M15/102 ,  F01N11/002 ,  G01M15/10 ,  G01N15/0606 ,  G01N15/0656 ,  G01N27/04 ,  G01N2015/0046

Abstract: A particulate matter sensor and a particulate matter sensing system using such a sensor are provided which are capable of being produced at decreased cost and accurately measuring the temperature of a heater. The particulate matter sensor includes a deposition portion on which particulate matter contained in exhaust gas is accumulated, a pair of electrodes which are disposed on the deposition portion and separate from each other, a heater which heats the deposition portion, and a pair of heater leads which form a path through which electrical current is delivered to the heater. A sensing line is connected to at least one of the heater leads to measure a resistance of the heater lead.

公开(公告)号：US20170045025A1

公开(公告)日：2017-02-16

申请号：US15039857

申请日：2014-11-28

Applicant: DENSO CORPORATION

Inventor： Satoru NAKAYAMA ,  Makoto TORIYAMA ,  Akimitsu SUGIURA ,  Masahiro ISHITANI ,  Atsuya MIZUTANI ,  Kouji ANDOH ,  Naoto HAYASHI ,  Kaori DOI

IPC: F02P15/10 ,  F02P17/12 ,  F02P5/145 ,  F02P3/05 ,  F02P3/04

CPC classification number: F02P15/10 ,  F02P3/0407 ,  F02P3/0442 ,  F02P3/05 ,  F02P3/051 ,  F02P3/0892 ,  F02P5/145 ,  F02P5/15 ,  F02P9/002 ,  F02P9/007 ,  F02P17/12 ,  Y02T10/46

Abstract: An ignition device at least equipped with a DC power source, an ignition coil unit, a spark plug, an ignition switch, and an auxiliary power source, wherein the auxiliary power source is at least equipped with a discharge energy accumulating means, a discharge switch, and a discharge driver. The ignition device is further equipped with a secondary-current feedback controlling means comprising a secondary current detecting means for detecting a secondary current flowing during the ignition coil unit discharge period, and a secondary current feedback control circuit-for determining an upper limit and a lower limit for the secondary current from binary threshold values, and driving so as to open and close the discharge switch on the basis of the determination results. Furthermore, energy is introduced from the auxiliary power source without switching the polarity of the secondary current.

Abstract translation: 一种至少配备有直流电源，点火线圈单元，火花塞，点火开关和辅助电源的点火装置，其中辅助电源至少配备有放电能量积存装置，放电开关 ，和放电驱动器。 点火装置还配备有二次电流反馈控制装置，该二次电流反馈控制装置包括用于检测在点火线圈单元放电时段期间流动的次级电流的二次电流检测装置和用于确定上限和下限的次级电流反馈控制电路 根据二进制阈值限制二次电流，并根据确定结果进行驱动以便打开和关闭放电开关。 此外，从辅助电源引入能量而不切换次级电流的极性。

公开(公告)号：US20180195947A1

公开(公告)日：2018-07-12

申请号：US15740845

申请日：2016-05-13

Applicant: DENSO CORPORATION

Inventor： Kouji ANDOH

IPC: G01N15/06 ,  G01N27/04 ,  F02D41/14

CPC classification number: G01N15/0656 ,  F01N2560/05 ,  F01N2560/20 ,  F02D41/1444 ,  F02D41/1494 ,  F02D2041/2058 ,  G01N15/0606 ,  G01N27/04 ,  G01N2015/0046

Abstract: A particulate matter detection system has a particulate matter detection sensor, a current detection part and a control circuit part. The particulate matter detection sensor has an accumulation part, a pair of electrodes and a heater part. The control circuit part performs switching of a detection mode and a burning mode. When the burning mode being switched to the detection mode, the control circuit part supplies a lower voltage between the pair of electrodes, which is lower than an usual voltage used in the detection mode, and detects a current detected by the current detection part as the offset value ΔI. In the detection mode, the control circuit part subtracts the offset value ΔI from the detected current value to correct the detected current value.

公开(公告)号：US20170030318A1

公开(公告)日：2017-02-02

申请号：US15302536

申请日：2015-04-03

Applicant: DENSO CORPORATION

Inventor： Naohisa NAKAMURA ,  Hisaharu MORITA ,  Kouji ANDOH ,  Shunichi TAKEDA

IPC: F02P3/04 ,  F02P9/00

CPC classification number: F02P3/04 ,  F02P3/0892 ,  F02P5/00 ,  F02P5/1502 ,  F02P9/002 ,  F02P9/007 ,  F02P15/10

Abstract: An ignition device for engine according to the present invention performs continuous spark discharge of an ignition plug by using a multiplex signal, an integration signal or a control signal. In the multiplex signal, discharge continuous signals IGW#1 to 4 for cylinders of the engine have been multiplexed. In the integration signal, a discharge continuous signal IGW and a secondary current instruction signal IGA have been added to an ignition signal IGT. In the control signal, the secondary current instruction signal IGA has been added into the multiplex signal or the integration signal. This structure can reduce the total number of signal lines connected between an ECU and a controller, and further reduce a signal line to transmit the secondary current instruction signal IGA.

Abstract translation: 根据本发明的用于发动机的点火装置通过使用多路复用信号，积分信号或控制信号来执行火花塞的连续火花放电。 在多路复用信号中，用于发动机气缸的放电连续信号IGW＃1〜4已被复用。 在积分信号中，放电连续信号IGW和二次电流指令信号IGA已被加到点火信号IGT。 在控制信号中，二次电流指令信号IGA已经被加到多路复用信号或积分信号中。 这种结构可以减少连接在ECU和控制器之间的信号线的总数，并进一步减少信号线以传送二次电流指令信号IGA。

公开(公告)号：US20180259439A1

公开(公告)日：2018-09-13

申请号：US15740850

申请日：2016-05-13

Applicant: DENSO CORPORATION

Inventor： Kouji ANDOH

IPC: G01N15/06

Abstract: A PM detection system has a PM sensor, current detector, and control circuit. The circuit switches of a detection mode and a burning mode. In the detection mode, the control circuit prohibits supply of power to a heater and supplies a voltage between electrodes, and instructs the current detector to detect a current flowing between the electrodes. In the burning mode, the control circuit instructs the heater to generate heat energy to burn PM accumulated on an accumulation part. The control circuit judges PM has remained on the accumulation part when the detected current exceeds a threshold value, and performs the burning mode again. The system further has a pair of current detectors. Each current detector detects a leak current flowing from the heater to the electrodes through an insulation member when the heater generates heat energy. The circuit detects a sensor failure based on the detected leak current.

公开(公告)号：US20160021751A1

公开(公告)日：2016-01-21

申请号：US14773539

申请日：2014-03-07

Applicant: DENSO CORPORATION

Inventor： Kouji ANDOH ,  Yu MURATA ,  Yasuo KAKUMAE

IPC: H05K1/18

CPC classification number: H05K1/18 ,  G01D11/24 ,  H01R13/4361 ,  H01R13/5216 ,  H01R13/6658 ,  H05K2201/10189

Abstract: A circuit fixing member is provided which achieves a connection with a controlled object after a circuit module is produced, thereby avoiding disconnection of a wire member in the course of the production, easy to transfer between production processes, and is designed to avoid the entry of water into the circuit module. The terminal-embedded portion 110 of the circuit fixing member 10 which retains the control circuit 15 is equipped with a plurality of circuit supports 111 and the space 115 which communicates at an end thereof with the opened terminal insertion hole 117 and is closed at the other end thereof. For engaging the terminal fitting portion 130 of the terminal member 13 with the fitting portion 200 of the controlled object side terminal member 20 within the space 115, the terminal locking opening 114 and the terminal locking member 14 are provided. The terminal locking member 14 works to secure the locked portion 201 in the space 115.

Abstract translation: 提供一种电路固定构件，其在制造电路模块之后实现与受控对象的连接，从而避免线材在生产过程中断开，容易在生产过程之间转移，并且被设计为避免进入 水进入电路模块。 保持控制电路15的电路固定部件10的端子嵌入部分110配备有多个电路支撑件111和在端部与开放的端子插入孔117连通并且在另一个处封闭的空间115 结束。 为了将端子构件13的端子接头部分130与受控物体侧端子构件20的装配部分200接合在空间115内，设置端子锁定开口114和端子锁定构件14。 端子锁定构件14用于将锁定部分201固定在空间115中。