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    • 1. 发明申请
    • SENSOR CONTROL APPARATUS AND SENSOR CONTROL SYSTEM
    • 传感器控制装置和传感器控制系统
    • US20090229343A1
    • 2009-09-17
    • US12402012
    • 2009-03-11
    • Yasuhiro IshiguroAkihiro KobayashiSatoru AbeHiroshi Inagaki
    • Yasuhiro IshiguroAkihiro KobayashiSatoru AbeHiroshi Inagaki
    • G01N7/00
    • G01N27/4065G01N1/2252
    • In a sensor control apparatus (2), a GND1 terminal for signal-system circuits and a GND2 terminal for a power-system circuit are separately provided in an external circuit terminal section (31). The ground for the drive circuit of the power system and the ground for the drive circuits of the signal system are disposed independently of each other on a circuit board (20). Further, a first electrical path for connecting the circuit board (20) and an engine control unit is provided independently of a second electrical path for connecting the circuit board (20) and a battery. Therefore, even when a heater control circuit (28) is turned ON, the influence of heater current on an Ip1 cell/Vs cell control circuit (26), an Ip2 cell control circuit (27), and a CAN (Controller Area Network) circuit (29) can be suppressed. Further, since the ground for the sensor-system circuit and the ground for the CAN circuit (29) are rendered common, the layout of the ground wring can be simplified.
    • 在传感器控制装置(2)中,用于信号系统电路的GND1端子和用于电力系统电路的GND2端子分别设置在外部电路端子部(31)中。 用于电力系统的驱动电路和信号系统的驱动电路的地的接地在电路板(20)上彼此独立地设置。 此外,独立于用于连接电路板(20)和电池的第二电路设置用于连接电路板(20)和发动机控制单元的第一电路。 因此,即使加热器控制电路(28)接通,加热器电流对Ip1单元/ Vs单元控制电路(26),Ip2单元控制电路(27)和CAN(控制器局域网络) 可以抑制电路(29)。 此外,由于用于传感器系统电路的接地和CAN电路(29)的接地是共同的,因此可以简化接地线的布局。
    • 2. 发明授权
    • Gas sensor control device
    • 气体传感器控制装置
    • US09518954B2
    • 2016-12-13
    • US12265363
    • 2008-11-05
    • Yasuhiro IshiguroSatoru AbeAkihiro KobayashiTakayuki Sumi
    • Yasuhiro IshiguroSatoru AbeAkihiro KobayashiTakayuki Sumi
    • G01N27/417
    • G01N27/4175
    • A gas sensor control device for controlling a gas sensor, the gas sensor including a gas sensor element that includes a cell including a pair of electrodes and a solid electrolyte, the gas sensor control device including a circuit board connectable to the gas sensor. The circuit board has mounted thereon a voltage control unit mounted on the circuit board and configured to control a voltage developed across a pair of electrodes of the cell to a constant voltage; a temperature detecting unit mounted on the circuit board and configured to detect a temperature of the circuit board; and a voltage correcting unit mounted on the circuit board and configured to apply a correction voltage to the voltage control unit compensating for a temperature-dependent variation in the constant voltage based on the temperature detected by the temperature detecting unit.
    • 一种用于控制气体传感器的气体传感器控制装置,所述气体传感器包括气体传感器元件,所述气体传感器元件包括具有一对电极和固体电解质的电池,所述气体传感器控制装置包括可连接到所述气体传感器的电路板。 电路板上安装有电压控制单元,该电压控制单元安装在电路板上,并被配置为将电池的一对电极上产生的电压控制为恒定电压; 温度检测单元,其安装在所述电路板上并且被配置为检测所述电路板的温度; 以及电压校正单元,安装在所述电路板上,并且被配置为基于由所述温度检测单元检测到的温度,向所述电压控制单元施加校正电压,所述电压控制单元补偿所述恒定电压的温度变化。
    • 3. 发明申请
    • GAS SENSOR CONTROL DEVICE
    • 气体传感器控制装置
    • US20090120161A1
    • 2009-05-14
    • US12265363
    • 2008-11-05
    • Yasuhiro IshiguroSatoru AbeAkihiro KobayashiTakayuki Sumi
    • Yasuhiro IshiguroSatoru AbeAkihiro KobayashiTakayuki Sumi
    • G01N29/02
    • G01N27/4175
    • A gas sensor control device for controlling a gas sensor, the gas sensor including a gas sensor element that includes a cell including a pair of electrodes and a solid electrolyte, the gas sensor control device including a circuit board connectable to the gas sensor. The circuit board has mounted thereon a voltage control unit mounted on the circuit board and configured to control a voltage developed across a pair of electrodes of the cell to a constant voltage; a temperature detecting unit mounted on the circuit board and configured to detect a temperature of the circuit board; and a voltage correcting unit mounted on the circuit board and configured to apply a correction voltage to the voltage control unit compensating for a temperature-dependent variation in the constant voltage based on the temperature detected by the temperature detecting unit.
    • 一种用于控制气体传感器的气体传感器控制装置,所述气体传感器包括气体传感器元件,所述气体传感器元件包括具有一对电极和固体电解质的电池,所述气体传感器控制装置包括可连接到所述气体传感器的电路板。 电路板上安装有电压控制单元,该电压控制单元安装在电路板上,并被配置为将电池的一对电极上产生的电压控制为恒定电压; 温度检测单元,其安装在所述电路板上并且被配置为检测所述电路板的温度; 以及电压校正单元,安装在所述电路板上,并且被配置为基于由所述温度检测单元检测到的温度,向所述电压控制单元施加校正电压,所述电压控制单元补偿所述恒定电压的温度变化。
    • 4. 发明授权
    • Gas sensor control device and nitrogen oxide concentration detection method
    • 气体传感器控制装置和氮氧化物浓度检测方法
    • US08394248B2
    • 2013-03-12
    • US12340333
    • 2008-12-19
    • Akihiro KobayashiTakayuki SumiYasuhiro IshiguroSatoru Abe
    • Akihiro KobayashiTakayuki SumiYasuhiro IshiguroSatoru Abe
    • G01N27/419
    • G01N27/4074
    • There is provided a control device for a gas sensor. The gas sensor is formed with first and second oxygen pumping cells to define first and second measurement chambers. Under the control of the sensor control device, the first and second oxygen pumping cells effect oxygen pumping actions against the first and second measurement chambers, respectively. The sensor control device is configured to detect currents through the first and second oxygen pumping cells, calculate a correction coefficient by comparison of a detection value of the first oxygen pumping cell current at a known oxygen concentration period with a previously stored reference value, correct the first oxygen pumping cell current by the correction coefficient and determine the concentration of nitrogen oxide in the gas under measurement based on the corrected first oxygen pumping cell current and the detected second oxygen pumping cell current.
    • 提供了一种用于气体传感器的控制装置。 气体传感器形成有第一和第二氧气泵浦单元,以限定第一和第二测量室。 在传感器控制装置的控制下,第一和第二氧气泵送电池分别对第一和第二测量室产生氧气抽吸作用。 传感器控制装置被配置为检测通过第一和第二氧气泵浦单元的电流,通过将已知氧浓度周期的第一氧气泵浦电池的电流的检测值与先前存储的参考值进行比较来计算校正系数, 基于校正的第一氧气泵浦电池电流和检测到的第二氧气泵浦电池电流,确定第一氧气泵浦电池的电流的校正系数并确定被测气体中的氮氧化物的浓度。
    • 5. 发明申请
    • GAS SENSOR CONTROL DEVICE AND NITROGEN OXIDE CONCENTRATION DETECTION METHOD
    • 气体传感器控制装置和氮氧化物浓度检测方法
    • US20090164091A1
    • 2009-06-25
    • US12340333
    • 2008-12-19
    • Akihiro KOBAYASHITakayuki SumiYasuhiro IshiguroSatoru Abe
    • Akihiro KOBAYASHITakayuki SumiYasuhiro IshiguroSatoru Abe
    • G06F19/00G01N7/00
    • G01N27/4074
    • There is provided a control device for a gas sensor. The gas sensor is formed with first and second oxygen pumping cells to define first and second measurement chambers. Under the control of the sensor control device, the first and second oxygen pumping cells effect oxygen pumping actions against the first and second measurement chambers, respectively. The sensor control device is configured to detect currents through the first and second oxygen pumping cells, calculate a correction coefficient by comparison of a detection value of the first oxygen pumping cell current at a known oxygen concentration period with a previously stored reference value, correct the first oxygen pumping cell current by the correction coefficient and determine the concentration of nitrogen oxide in the gas under measurement based on the corrected first oxygen pumping cell current and the detected second oxygen pumping cell current.
    • 提供了一种用于气体传感器的控制装置。 气体传感器形成有第一和第二氧气泵浦单元,以限定第一和第二测量室。 在传感器控制装置的控制下,第一和第二氧气泵送电池分别对第一和第二测量室产生氧气抽吸作用。 传感器控制装置被配置为检测通过第一和第二氧气泵浦单元的电流,通过将已知氧浓度周期的第一氧气泵浦电池的电流的检测值与先前存储的参考值进行比较来计算校正系数, 基于校正的第一氧气泵浦电池电流和检测到的第二氧气泵浦电池电流,确定第一氧气泵浦电池的电流的校正系数并确定被测气体中的氮氧化物的浓度。
    • 6. 发明授权
    • Sensor control unit and gas detection apparatus
    • 传感器控制单元和气体检测仪
    • US08474302B2
    • 2013-07-02
    • US12639745
    • 2009-12-16
    • Satoru AbeYasuhiro Ishiguro
    • Satoru AbeYasuhiro Ishiguro
    • G01M15/10
    • G01N27/4065
    • A sensor control circuit unit (1) includes a circuit board (70) which has opposite sides (70a) and (70b) facing in parallel with each other, and carries a signal detection circuit (28) for receiving a detection signal whose level is equal to or less than one μA and which changes in accordance with NOX concentration, a power supply circuit (35), and a heater circuit (40) for controlling a heater. The power supply circuit (35) and the heater circuit (40) are mounted on one side of the circuit board (70) toward one side (70a) of the opposite sides, and the signal detection circuit (28) is mounted in a mounting area on the other side of the circuit board (70) toward the other side (70b) of the opposite sides, the mounting area being different from a mounting area of the circuits (35) and (40). A ground conductor (24x) connected to the ground is continuously formed on a surface of the circuit board (70) on which the signal detection circuit (28) is mounted such that the ground conductor (24x) extends along at least the other of the opposite sides.
    • 传感器控制电路单元(1)包括具有彼此相对的相对侧(70a)和(70b)的电路板(70),并且传送信号检测电路(28),用于接收电平为 等于或小于1μA,并且根据NO x浓度变化,电源电路(35)和用于控制加热器的加热器电路(40)。 电源电路(35)和加热器电路(40)朝向相对侧的一侧(70a)安装在电路板(70)的一侧,信号检测电路(28)安装在安装 电路板(70)的另一侧朝向相对侧的另一侧(70b)的区域,安装面积与电路(35)和(40)的安装面积不同。 连接到地面的接地导体(24x)连续形成在其上安装有信号检测电路(28)的电路板(70)的表面上,使得接地导体(24x)沿着至少另一个延伸 对面。