Gas detector and automobile ventilation system
    1.
    发明授权
    Gas detector and automobile ventilation system 有权
    气体检测仪和汽车通风系统

    公开(公告)号:US07266459B2

    公开(公告)日:2007-09-04

    申请号:US10048535

    申请日:2001-05-28

    IPC分类号: G06F15/00

    摘要: It is an object of the invention to provide a gas detecting device capable of relieving the influence of an environment such as a temperature, a humidity or a wind velocity to detect a change in a concentration of a specific gas and an autoventilation system for a vehicle using the gas detecting device.More specifically, a gas detecting device (10) using a gas sensor element (11) changing a sensor resistance Rs depending on a concentration of a gas such as NOx and an autoventilation system (100) for a vehicle according to the invention A/D convert the output of a sensor resistance value converting circuit (14) to acquire a sensor output value S(n), calculates a base value B(n) based on B(n)=B(n−1)+k1{S(n)−B(n−1)}, and furthermore, calculates a difference value of D(n)=S(n)−B(n). When the concentration of the gas is increased so that the difference value becomes greater than a predetermined concentration threshold, a high concentration signal is generated to close a flap (34) and a base value B(n) is calculated by using a coefficient k2 which is smaller than k1 based on B(n)=B(n−1)+k2{S(n)−B(n−1)}.

    摘要翻译: 本发明的目的是提供一种能够缓解诸如温度,湿度或风速等环境的影响的气体检测装置,以检测特定气体和车辆的自动换气系统的浓度变化 使用气体检测装置。 更具体地,使用根据本发明的车辆的NOx浓度和根据本发明的自动换气系统(100))来改变传感器电阻Rs的气体传感器元件(11)的气体检测装置(10) 转换传感器电阻值转换电路(14)的输出以获得传感器输出值S(n),基于B(n)= B(n-1)+ k 1 {S (n)-B(n-1)},并且还计算D(n)= S(n)-B(n)的差值。 当气体浓度增加使得差值变得大于预定浓度阈值时,产生高浓度信号以闭合翼片(34),并且通过使用系数k 2来计算基值B(n) 其基于B(n)= B(n-1)+ k 2 {S(n)-B(n-1)}小于k 1)。

    Control system
    2.
    发明授权
    Control system 有权
    控制系统

    公开(公告)号:US06714876B2

    公开(公告)日:2004-03-30

    申请号:US09793506

    申请日:2001-02-27

    IPC分类号: G06F1900

    CPC分类号: G01N27/122

    摘要: A control system for a gas sensor element capable of lessening the effect of variations in sensor properties among gas sensor elements as well as the effect of environmental factors, such as temperature and humidity, to thereby accurately detect variation in the concentration of a specific gas. In a control system 10 for a gas sensor element 11 whose sensor resistance Rs varies with the concentration of NOx gas, a pulse signal Sc which alternates between 0 V and +5 V is input to a pulse input terminal 17. When a voltage of 5 V is applied to the pulse input terminal 17, a capacitor 14 is charged via a fixed resistor 15 having a resistance Rc and a diode 16. When a voltage of 0 V is applied, the capacitor 14 discharges via the gas sensor element 11. An output voltage Vout is A/D-converted and processed by means of a microcomputer 20, thereby controlling an electronic control assembly 21. The potential Vout at an operating point Pd varies with the sensor resistance Rs as well as with the duty ratio DT of the pulse signal Sc. Thus, the output voltage Vout can be maintained within a predetermined range by adjusting the duty ratio.

    摘要翻译: 一种用于气体传感器元件的控制系统,其能够减小气体传感器元件之间的传感器特性变化的影响以及诸如温度和湿度的环境因素的影响,从而精确地检测特定气体的浓度变化。 在传感器电阻Rs随着NOx气体的浓度而变化的气体传感器元件11的控制系统10中,在0V和+ 5V之间交替的脉冲信号Sc被输入到脉冲输入端17.当电压为5 V被施加到脉冲输入端子17,电容器14通过具有电阻Rc和二极管16的固定电阻器15充电。当施加0V的电压时,电容器14经由气体传感器元件11放电。 输出电压Vout通过微型计算机20进行A / D转换和处理,从而控制电子控制组件21.工作点Pd处的电位Vout随传感器电阻Rs以及占空比DT而变化 脉冲信号Sc。 因此,通过调整占空比,能够将输出电压Vout保持在规定的范围内。

    Gas detection apparatus and automatic ventilation system for vehicle
    3.
    发明授权
    Gas detection apparatus and automatic ventilation system for vehicle 有权
    汽车气体检测仪和自动通风系统

    公开(公告)号:US06859737B2

    公开(公告)日:2005-02-22

    申请号:US10305358

    申请日:2002-11-27

    CPC分类号: G01N33/0065 G01N27/12

    摘要: A gas detection apparatus incorporating a gas sensor element and a vehicle automatic ventilation system including the apparatus in which a sensor output value S(n) is obtained, and a base value B(n) is calculated by use of Expression (1): B(n)=B(n−1)+k1[S(n)−B(n−1)]−k2[S(n)−S(n−5)] in the case where S(n)≧B(n−1), or by use of Expression (3): B(n)=S(n) in the case where S(n)

    摘要翻译: 包含气体传感器元件的气体检测装置和包括其中获得传感器输出值S(n)的装置和基准值B(n)的车辆自动通风系统通过使用表达式(1)计算:B (n)=(n-1)+ k1 [S(n)-B(n-1)] -k2 [S(n)-S(n-5) 或者在S(n)

    FM Detecting circuit
    4.
    发明授权
    FM Detecting circuit 失效
    FM检测电路

    公开(公告)号:US4353034A

    公开(公告)日:1982-10-05

    申请号:US94768

    申请日:1979-11-16

    申请人: Yuji Kimoto

    发明人: Yuji Kimoto

    IPC分类号: H03D3/14 H03D3/26 H03D3/00

    CPC分类号: H03D3/14 H03D3/26

    摘要: An FM signal is applied to an input of a differential amplifier including a pair of transistors having symmetrical characteristics. A 180.degree. phase shifting circuit is connected between two inputs of the differential amplifier. Accordingly, the inputs of the pair of transistors of the differential amplifier receive the FM signal, as converted into an AM signal. The respective base-emitter rectifying junctions of the pair of transistors each rectify the AM signals, as received. The emitter electrodes of the pair of transistors are commonly connected through a predetermined resistor, with the common connection point being connected to the ground through a capacitor. Accordingly, a smoothing circuit is implemented by the emitter resistor and the capacitor. A load resistor is connected to the collector electrode of one of the pair of transistors, so that a detected output is withdrawn therefrom.

    摘要翻译: FM信号被施加到包括具有对称特性的一对晶体管的差分放大器的输入。 在差分放大器的两个输入端之间连接一个180°的移相电路。 因此,差分放大器的这对晶体管的输入端接收FM信号,转换成AM信号。 一对晶体管的各个基极 - 发射极整流结接收器按照接收的方式校正AM信号。 一对晶体管的发射电极通过预定的电阻器共同连接,公共连接点通过电容器连接到地。 因此,由发射极电阻和电容器实现平滑电路。 负载电阻器连接到该对晶体管之一的集电极,从而从其中取出检测的输出。

    Oxygen sensor control apparatus
    6.
    发明授权
    Oxygen sensor control apparatus 有权
    氧传感器控制装置

    公开(公告)号:US08417413B2

    公开(公告)日:2013-04-09

    申请号:US13415531

    申请日:2012-03-08

    IPC分类号: G06F19/00

    摘要: In an oxygen sensor control apparatus, after start of fuel cut, the weighted average Ipd of corrected values obtained by multiplying the output value of a mounted oxygen sensor by a correction coefficient Kp is obtained as a representative value Ipe, representing the corrected values in the fuel cut period (S19). In the case where the number of times the representative value Ipe is continuously judged not to fall outside a second range (S21: NO) and to fall outside a first range (S23: YES) reaches 10 (a first number of times) (S26: YES), a new correction coefficient Kp is computed (S27). In the case where the number of times the representative value Ipe is continuously judged to fall outside the second range (S21: YES) reaches 4 (a second number of times smaller than the first number of times) (S29: YES), a new correction coefficient Kp is computed (S30).

    摘要翻译: 在氧传感器控制装置中,在开始燃料切断之后,将通过将安装的氧传感器的输出值乘以校正系数Kp而获得的校正值的加权平均Ipd作为代表值Ipe获得,代表值 燃料切断期(S19)。 在代表值Ipe连续判断为不超出第二范围(S21:否)并落在第一范围(S23:是)之外的次数达到10(第一次)的情况下(S26 :是),计算新的校正系数Kp(S27)。 在代表值Ipe连续判断为超出第二范围的次数(S21:是)的情况下达到4(比第一次数小的次数)(S29:是),新的 计算校正系数Kp(S30)。

    Vehicle device controller and temperature sensor anomaly detection method therefor
    7.
    发明授权
    Vehicle device controller and temperature sensor anomaly detection method therefor 有权
    车辆装置控制器和温度传感器异常检测方法

    公开(公告)号:US08532869B2

    公开(公告)日:2013-09-10

    申请号:US12974362

    申请日:2010-12-21

    IPC分类号: G06F11/30

    摘要: There is provided a controller for controlling a vehicle device, which includes a circuit board having mounted thereon a control circuit that controls operations of the vehicle device, a first temperature sensor mounted on a first specific region of the circuit board to output a first signal responsive to a temperature of the first specific region of the circuit board and a second temperature sensor mounted on a second specific region of the circuit board to output a second signal responsive to a temperature of the second specific region of the circuit board. The control circuit has an anomaly detection portion that judges the occurrence or non-occurrence of an output anomaly in the first temperature sensor based on the first and second signals of the first and second temperature sensors.

    摘要翻译: 提供了一种用于控制车辆装置的控制器,其包括其上安装有控制车辆装置的操作的控制电路的电路板,安装在电路板的第一特定区域上的第一温度传感器以响应于第一信号输出 到电路板的第一特定区域的温度和安装在电路板的第二特定区域上的第二温度传感器,以响应于电路板的第二特定区域的温度输出第二信号。 控制电路具有基于第一和第二温度传感器的第一和第二信号来判断第一温度传感器中的输出异常的发生或不发生的异常检测部分。

    Sensor control device and sensor control method
    8.
    发明授权
    Sensor control device and sensor control method 有权
    传感器控制装置和传感器控制方法

    公开(公告)号:US09086393B2

    公开(公告)日:2015-07-21

    申请号:US13501205

    申请日:2010-10-06

    摘要: A sensor control device including an anomaly diagnosis section. When at least one of a first NOX concentration Ip2W based on the output OP1 of a first differential amplification circuit (210) and a second NOX concentration Ip2N based on the output OP2 of a second differential amplification circuit (220) falls within an anomaly diagnosis range ZN, the difference D between Ip2W and Ip2N is obtained, and the difference D is stored in a difference accumulation buffer BF such that 16 values of the difference D continuously sampled up to the present are stored. The integrated value (difference integral value) Dint of the difference D is obtained. When the difference integrated value Dint becomes equal to or greater than a predetermined value Di0, the sensor control device indicates a diagnosis result of “anomalous.”

    摘要翻译: 一种包括异常诊断部分的传感器控制装置。 当基于第一差分放大电路(210)的输出OP1的第一NO x浓度Ip2W和基于第二差分放大电路(220)的输出OP2的第二NO x浓度Ip2N中的至少一个落入异常诊断范围内时 ZN,获得Ip2W和Ip2N之间的差D,并且将差D存储在差分累加缓冲器BF中,从而存储连续采样到目前的差值D的16个值。 获得差值D的积分值(差分积分值)Dint。 当差积分值Dint变得等于或大于预定值Di0时,传感器控制装置指示“异常”的诊断结果。

    SENSOR CONTROL DEVICE AND SENSOR CONTROL METHOD
    9.
    发明申请
    SENSOR CONTROL DEVICE AND SENSOR CONTROL METHOD 有权
    传感器控制装置和传感器控制方法

    公开(公告)号:US20120210174A1

    公开(公告)日:2012-08-16

    申请号:US13501205

    申请日:2010-10-06

    IPC分类号: G06F11/14

    摘要: A sensor control device including an anomaly diagnosis section. When at least one of a first NOX concentration Ip2W based on the output OP1 of a first differential amplification circuit (210) and a second NOX concentration Ip2N based on the output OP2 of a second differential amplification circuit (220) falls within an anomaly diagnosis range ZN, the difference D between Ip2W and Ip2N is obtained, and the difference D is stored in a difference accumulation buffer BF such that 16 values of the difference D continuously sampled up to the present are stored. The integrated value (difference integral value) Dint of the difference D is obtained. When the difference integrated value Dint becomes equal to or greater than a predetermined value Di0, the sensor control device indicates a diagnosis result of “anomalous.”

    摘要翻译: 一种包括异常诊断部分的传感器控制装置。 当基于第一差分放大电路(210)的输出OP1的第一NO x浓度Ip2W和基于第二差分放大电路(220)的输出OP2的第二NO x浓度Ip2N中的至少一个落入异常诊断范围内时 ZN,获得Ip2W和Ip2N之间的差D,并且将差D存储在差分累加缓冲器BF中,从而存储连续采样到目前的差值D的16个值。 获得差值D的积分值(差分积分值)Dint。 当差积分值Dint变得等于或大于预定值Di0时,传感器控制装置指示“异常”的诊断结果。

    VEHICLE DEVICE CONTROLLER AND TEMPERATURE SENSOR ANOMALY DETECTION METHOD THEREFOR
    10.
    发明申请
    VEHICLE DEVICE CONTROLLER AND TEMPERATURE SENSOR ANOMALY DETECTION METHOD THEREFOR 有权
    车辆装置控制器及温度传感器异常检测方法

    公开(公告)号:US20110172876A1

    公开(公告)日:2011-07-14

    申请号:US12974362

    申请日:2010-12-21

    IPC分类号: G06F7/00

    摘要: There is provided a controller for controlling a vehicle device, which includes a circuit board having mounted thereon a control circuit that controls operations of the vehicle device, a first temperature sensor mounted on a first specific region of the circuit board to output a first signal responsive to a temperature of the first specific region of the circuit board and a second temperature sensor mounted on a second specific region of the circuit board to output a second signal responsive to a temperature of the second specific region of the circuit board. The control circuit has an anomaly detection portion that judges the occurrence or non-occurrence of an output anomaly in the first temperature sensor based on the first and second signals of the first and second temperature sensors.

    摘要翻译: 提供了一种用于控制车辆装置的控制器,其包括其上安装有控制车辆装置的操作的控制电路的电路板,安装在电路板的第一特定区域上的第一温度传感器以响应于第一信号输出 到电路板的第一特定区域的温度和安装在电路板的第二特定区域上的第二温度传感器,以响应于电路板的第二特定区域的温度输出第二信号。 控制电路具有基于第一和第二温度传感器的第一和第二信号来判断第一温度传感器中的输出异常的发生或不发生的异常检测部分。