公开(公告)号：US20160202305A1

公开(公告)日：2016-07-14

申请号：US14973961

申请日：2015-12-18

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO

IPC: G01R31/02

CPC classification number: G01R31/025 ,  G01R31/02 ,  G01R31/024 ,  H03K17/0822 ,  H04B3/46

Abstract: A load drive apparatus includes a switching element, a current detection circuit, a short circuit detection resistor, and a reflux diode. The switching element is placed to a high side of the inductive load, is interposed between the voltage source and the inductive load, and controls a current supplied to the inductive load. The current detection circuit is placed to a low side of the inductive load, and detects a current value of a current flowing through the low side of the inductive load. The short circuit detection resistor is interposed between the current detection circuit and a ground. The reflux diode is placed in a forward direction of the reflux diode and connects a middle point between the short circuit detection resistor and the current detection circuit with a different middle point between the switching element and the inductive load.

Abstract translation: 负载驱动装置包括开关元件，电流检测电路，短路检测电阻和回流二极管。 开关元件放置在电感负载的高侧，介于电压源和感性负载之间，并控制提供给感性负载的电流。 电流检测电路被放置在感性负载的低侧，并且检测流过感性负载的低侧的电流的电流值。 短路检测电阻插在电流检测电路和地之间。 将回流二极管放置在回流二极管的正方向，并将短路检测电阻和电流检测电路之间的中间点与开关元件和感性负载之间的不同中点连接。

公开(公告)号：US20160088759A1

公开(公告)日：2016-03-24

申请号：US14836205

申请日：2015-08-26

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO ,  Satoshi YAMAUCHI

IPC: H05K7/14

CPC classification number: H05K7/20409 ,  H05K5/006

Abstract: A base plate for a circuit board assembly, to which an electronic component is soldered, has a through-hole. A screw hole is formed in a housing, to which the base plate is fixed by screw members. Multiple screw-fixing portions are formed in an electronic device, so that each of the screw members is inserted through each of the through-holes of the base plate and fixed to the housing in each of the screw-fixing portions. Two projections are formed at a first casing of the housing in each of the screw-fixing portions, so that the base plate is in contact with the first casing at two contacting points formed by the projections. The projections are symmetrically formed with respect to a center of the screw hole.

Abstract translation: 用于电子部件被焊接到其上的电路板组件的基板具有通孔。 在壳体中形成有螺纹孔，基板通过螺钉部件固定在该螺钉孔上。 在电子设备中形成多个螺钉固定部，使得每个螺钉构件通过基板的每个通孔插入并固定到每个螺钉固定部中的壳体。 在每个螺钉固定部分的壳体的第一壳体处形成两个突起，使得底板在由突起形成的两个接触点处与第一壳体接触。 突起相对于螺钉孔的中心对称地形成。

公开(公告)号：US20160236125A1

公开(公告)日：2016-08-18

申请号：US14995234

申请日：2016-01-14

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO

IPC: B01D46/00 ,  H05K7/20

CPC classification number: H05K7/20181 ,  B01D2279/35 ,  H05K5/0026 ,  H05K5/0213

Abstract: An electronic control device has a housing and an air breathing filter assembled to a through-hole of the housing. The air breathing filter has a filter supporting member and a filter cover member. A cylindrical portion of the filter supporting member is inserted into the through-hole from an inside space of the housing, while the filter cover member is fixed to the cylindrical portion of the filter supporting member from an outside of the housing. A pushing portion is formed in a leg portion of the filter cover member for pushing a wall of the housing in a downward direction. A water-proof sealing member is interposed between an inner wall surface of the housing and a flanged portion of the filter supporting member, so that a gap between the housing and the air breathing filter is surely sealed.

Abstract translation: 电子控制装置具有壳体和组装到壳体的通孔的呼吸过滤器。 呼吸过滤器具有过滤器支撑构件和过滤器盖构件。 过滤器支撑构件的圆筒部从壳体的内部空间插入到通孔中，而过滤器盖构件从壳体的外部固定到过滤器支撑构件的圆筒部。 推动部分形成在过滤器盖构件的腿部中，用于沿着向下的方向推动壳体的壁。 防水密封构件插入在壳体的内壁表面和过滤器支撑构件的凸缘部分之间，使得壳体和呼吸过滤器之间的间隙被可靠地密封。

公开(公告)号：US20150362456A1

公开(公告)日：2015-12-17

申请号：US14681159

申请日：2015-04-08

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO

IPC: G01N27/406 ,  F02D41/14 ,  F02D41/30

CPC classification number: F02D41/1496 ,  F02D41/1456 ,  F02D41/1494

Abstract: A control circuit includes a sweep circuit for supplying a sweep current to a gas concentration sensor, a current detection resistor for detecting a sensor current flowing in the gas concentration sensor, a calculation circuit for calculating an impedance of the gas concentration sensor based on the sensor current and an inter-terminal voltage of the gas concentration sensor, and a protective element for suppressing external noise from being applied to the sweep circuit and the calculation circuit. The sweep current is divided to flow in a first protective element and the gas concentration sensor. The sensor current is divided to flow in a second protective element and the current detection resistor. The calculation circuit calculates a loss current flowing to the first protective element or a second loss current flowing to the second protective element and calculates the sensor current based on the calculated current.

Abstract translation: 控制电路包括用于向气体浓度传感器提供扫频电流的扫描电路，用于检测在气体浓度传感器中流动的传感器电流的电流检测电阻器，用于基于传感器计算气体浓度传感器的阻抗的计算电路 电流和气体浓度传感器的端子间电压，以及用于抑制外部噪声施加到扫描电路和计算电路的保护元件。 扫描电流被分为在第一保护元件和气体浓度传感器中流动。 传感器电流被分成在第二保护元件和电流检测电阻器中流动。 计算电路计算流向第一保护元件的损耗电流或流过第二保护元件的第二损耗电流，并基于计算出的电流来计算传感器电流。

公开(公告)号：US20180040796A1

公开(公告)日：2018-02-08

申请号：US15653672

申请日：2017-07-19

Applicant: DENSO CORPORATION

Inventor： Daichi MARUI ,  Masafumi UMENO

IPC: H01L35/32 ,  H01L35/10 ,  H01L35/30

CPC classification number: H01L35/32 ,  H01L21/02576 ,  H01L21/02579 ,  H01L35/10 ,  H01L35/26 ,  H01L35/30

Abstract: An electronic control device includes: a thermoelectric element module that has a plurality of thermoelectric element groups, which are connected in parallel; and a control circuit that supplies a driving power to the thermoelectric element module to perform an operation control of the thermoelectric element module. Additionally, the plurality of thermoelectric element groups respectively have a plurality of thermoelectric elements, which are connected in series. Moreover, each of the plurality of thermoelectric elements is provided with a pair of a p-type semiconductor and an n-type semiconductor. Furthermore, the plurality of thermoelectric element groups have different number of the thermoelectric elements.

公开(公告)号：US20170101944A1

公开(公告)日：2017-04-13

申请号：US15281401

申请日：2016-09-30

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO

IPC: F02D35/02 ,  G06F17/18 ,  G01L23/22 ,  G01M15/12 ,  F02D41/28 ,  F02P5/152

CPC classification number: F02D35/027 ,  F02D41/28 ,  F02D2041/286 ,  F02D2041/288 ,  F02D2200/025 ,  F02P5/152 ,  G01L23/226 ,  G01M15/12 ,  G06F17/18 ,  Y02T10/46

Abstract: An engine control unit includes an extracting portion acquiring a sound or vibration of an engine from external and extracting vibration components of frequency bands each of which including a resonant frequency of a vibration mode, a waveform synthesis portion synthesizing the vibration components extracted by the extracting portion to generate a synthesis vibration waveform, a calculation portion calculating a time average value by averaging the synthesis vibration waveform in a predetermined time, a peak detection portion detecting a peak strength of the vibration component of the frequency band including a lowest resonant frequency, a storage portion previously storing a first threshold and a second threshold, and a determination portion determining an existence of a knocking and whether a knock level is a first knock level or a second knock level, by comparing the time average value with the first threshold and comparing the peak strength with the second threshold.

公开(公告)号：US20160084812A1

公开(公告)日：2016-03-24

申请号：US14849910

申请日：2015-09-10

Applicant: DENSO CORPORATION

Inventor： Satoshi NISHIMOTO ,  Masafumi UMENO ,  Yuji YAMADA

IPC: G01N33/00 ,  G01N27/04

CPC classification number: G01N33/0073 ,  G01N27/028 ,  G01N27/045

Abstract: A control apparatus that controls a gas concentration sensor includes a sweep circuit, a current detection resistor, and a calculation portion. The sweep circuit supplies the gas concentration sensor with a sweep current. The calculation portion calculates impedance of the gas concentration sensor. The gas concentration sensor and the current detection resistor are sequentially connected in series along a direction from the sweep circuit to a reference voltage. The sweep circuit has a constant voltage circuit and a reference resistor. An increasing and decreasing tendency of a manufacturing variation of the reference resistor and an increasing and decreasing tendency of a manufacturing variation of the current detection resistor are identical. The calculation portion divides a product of a resistance value of the current detection resistor and a time variation of applied voltage to the gas concentration sensor by a time variation of applied voltage to the current detection resistor.

Abstract translation: 控制气体浓度传感器的控制装置包括扫描电路，电流检测电阻和计算部。 扫描电路为气体浓度传感器提供扫描电流。 计算部分计算气体浓度传感器的阻抗。 气体浓度传感器和电流检测电阻器沿着从扫描电路到参考电压的方向依次串联连接。 扫描电路具有恒压电路和参考电阻。 参考电阻的制造变化的增加和减少的趋势以及电流检测电阻器的制造变化的增加和减少的趋势是相同的。 计算部通过对电流检测电阻器的施加电压的时间变化，将电流检测电阻器的电阻值和施加电压的时间变化量乘以气体浓度传感器。

公开(公告)号：US20150327354A1

公开(公告)日：2015-11-12

申请号：US14690704

申请日：2015-04-20

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO

IPC: H05K1/02 ,  H05K1/11 ,  H05K7/20

CPC classification number: H05K1/02 ,  H05K1/0204 ,  H05K1/0209 ,  H05K1/11 ,  H05K1/115 ,  H05K5/0047 ,  H05K7/20 ,  H05K7/205 ,  H05K7/20854 ,  H05K2201/09063 ,  H05K2201/10545

Abstract: An electronic device includes a circuit board, first and second electronic components, a housing, and a heat conduction member. The first electronic component is mounted on a first surface of the circuit board, and the second electronic component is mounted on a second surface of the circuit board. The first electronic component and the second electronic component are arranged in an arrangement direction. The heat conduction member is disposed between the housing and a first component-opposite portion of the circuit board opposite to the first electronic component, and between the housing and a second component-opposite portion of the circuit board opposite to the second electronic component. The circuit board has a through hole in a formation area between the first electronic component and the second electronic component. The heat conduction member integrally covers each of the first component-opposite portion and the second component-opposite portion and the formation area of the circuit board.

Abstract translation: 电子设备包括电路板，第一和第二电子部件，壳体和导热部件。 第一电子部件安装在电路板的第一表面上，第二电子部件安装在电路板的第二表面上。 第一电子部件和第二电子部件沿排列方向排列。 导热构件设置在壳体与电路板的与第一电子部件相对的第一部件相对部分之间，以及壳体与电路板的与第二电子部件相对的第二部件相对部分之间。 电路板在第一电子部件和第二电子部件之间的形成区域中具有通孔。 导热构件一体地覆盖电路板的第一部件相对部分和第二部件相对部分和形成区域中的每一个。

公开(公告)号：US20150268299A1

公开(公告)日：2015-09-24

申请号：US14662645

申请日：2015-03-19

Applicant: DENSO CORPORATION

Inventor： Masafumi UMENO

IPC: G01R31/28 ,  G01N33/00 ,  G01R31/00

CPC classification number: G01N33/007 ,  F01N3/08 ,  F01N11/007 ,  F01N2560/025 ,  F02B77/086 ,  G01N27/4065 ,  G01N27/4175 ,  Y02T10/47

Abstract: A gas-sensor control device includes a sweep circuit, a return sweep circuit, and a control portion. The sweep circuit energizes a detection current to flow through an oxygen sensor to calculates an impedance of the oxygen sensor. The return sweep circuit energizes a neutralization current to flow through the oxygen sensor in a direction opposite to a direction of the detection current, so as to remove electricity from the oxygen sensor that is energized by the detection current. The control portion executes a detection of an off failure of the sweep circuit and the return sweep circuit, only based on a sensor voltage acquired in a time period where the neutralization current flows through the oxygen sensor, and a threshold.

Abstract translation: 气体传感器控制装置包括扫掠电路，返回扫描电路和控制部分。 扫描电路激励检测电流流过氧传感器以计算氧传感器的阻抗。 返回扫描电路使中和电流通过氧传感器沿与检测电流的方向相反的方向通电，从而从由氧检测器中除去被检测电流通电的电力。 控制部仅基于在中和电流流过氧传感器的时间段中获取的传感器电压和阈值来执行扫描电路和返回扫描电路的关断故障的检测。