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:
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:
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:
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:
A flexible container excellent in durability and stability for storage and conveyance and capable to prevent the content in the flexible container from scattering. The flexible container is so constructed that a frame for fixedly supporting a storing bag is provided around the storing bag, so that the storing portion is accommodated in the frame; that the cylindrical injecting portion provided at the top of the storing portion and the cylindrical discharging portion provided at the bottom of the storing portion are extended to a given length from the frame to open to outside; that a folded portion is integrally formed around the outside of the storing bag at a portion thereof near a root portion of the cylindrical discharging portion of the storing bag placed in the frame; that a flange having a pair of ring-like fixing portions to fixedly hold the folded portion in sandwich relation therebetween and a cylindrical portion projecting from an inner periphery of one of the fixing portions is mounted to the folded portion, so that the cylindrical discharging portion is surrounded within the frame by the folded portion and the flange, to form an accommodating portion for accommodating therein the cylindrical discharging portion as folded; and that a lid is detachably provided at an opening of the cylindrical portion at its projecting side.
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:
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:
A capacitor is disclosed having two capacitor elements of MIS structure, the capacitor elements being connected in a zigzag manner to realize a balanced parallel connection for the capacitor elements. A circuit having a pair of balanced impedance branches, the branches being bridged by the balanced parallel capacitor disclosed above, resultantly sustains the impedance branches balanced regardless of the amount of the parasitic capacity involved.
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:
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)。