Method and circuit configuration for protecting a heated
temperature-dependent sensor resistor against overheating
    1.
    发明授权
    Method and circuit configuration for protecting a heated temperature-dependent sensor resistor against overheating 失效
    用于保护加热的依赖于温度的传感器电阻器防止过热的方法和电路配置

    公开(公告)号:US5616843A

    公开(公告)日:1997-04-01

    申请号:US622553

    申请日:1996-03-25

    摘要: A temperature detector resistor and a sensor resistor are disposed in an intake manifold of an internal combustion engine. The two resistors each belong to a respective bridge branch of a measuring bridge having a bridge diagonal which is led to a first differential amplifier. A current in the bridge is adjusted in such a way that the sensor resistor always has a prescribed overtemperature. Due to backfires in the intake manifold, damage can occur to the sensor resistor due to sudden strong heating of the temperature detector resistor as a consequence of a strong rise in current. In order to avoid such damage, a third bridge branch is connected in parallel with the two bridge branches. The third bridge branch has a tap which is supplied, as is another tap, to inputs of a second differential amplifier having an output signal influencing the bridge current in such a way that the current is limited to a prescribed value. The device is applicable in internal combustion engines.

    摘要翻译: 温度检测器电阻器和传感器电阻器设置在内燃机的进气歧管中。 两个电阻器各自属于具有桥对角线的测量桥的相应桥支路,其被引导到第一差分放大器。 调节桥中的电流,使得传感器电阻器总是具有规定的过温度。 由于进气歧管的反火,传感器电阻器可能由于电流剧烈上升而导致温度检测电阻突然强烈加热而损坏。 为了避免这种损坏,第三桥分支与两个桥分支并联连接。 第三桥式分支具有抽头,其作为另一个抽头被提供给具有影响桥式电流的输出信号的第二差分放大器的输入,使得电流被限制在规定值。 该装置适用于内燃机。

    Method, device, and system for operating an internal combustion engine
    3.
    发明授权
    Method, device, and system for operating an internal combustion engine 有权
    用于操作内燃机的方法,装置和系统

    公开(公告)号:US08312868B2

    公开(公告)日:2012-11-20

    申请号:US12557012

    申请日:2009-09-10

    IPC分类号: F02M33/04

    摘要: A device and a method for operating an internal combustion engine having at least one cylinder and a tank ventilation system with a line designed to provide pneumatic communication between the tank ventilation system and the at least one cylinder. The line has at least one sensor for determining a hydrocarbon content of a gas flow. A determination, as a function of a measurement signal from the sensor, of a hydrocarbon content of a gas flow flowing from the tank ventilation system to the at least one cylinder is performed. At least one characteristic variable for a fuel quantity to be metered is determined as a function of the determined hydrocarbon content. A metering of fuel into the cylinder is determined as a function of the at least one determined characteristic variable.

    摘要翻译: 一种用于操作内燃机的装置和方法,所述内燃机具有至少一个气缸和具有设计成在所述油箱通风系统和所述至少一个气缸之间提供气动连通的管线的油箱通风系统。 该线具有至少一个用于确定气流的烃含量的传感器。 根据来自传感器的测量信号,确定从储罐通风系统流向至少一个气缸的气流的烃含量。 要计量的燃料量的至少一个特征变量被确定为所确定的碳氢化合物含量的函数。 作为至少一个确定的特性变量的函数确定进入气缸的燃料计量。

    Method For Evaluating the State of A Soot Sensor In A Motor Vehicle
    6.
    发明申请
    Method For Evaluating the State of A Soot Sensor In A Motor Vehicle 有权
    评估汽车中烟尘传感器状态的方法

    公开(公告)号:US20110088450A1

    公开(公告)日:2011-04-21

    申请号:US12905660

    申请日:2010-10-15

    IPC分类号: G01M15/10

    摘要: A method for performing on-board functional diagnostics on a soot sensor of a vehicle and/or for detecting further components in the soot in a motor vehicle having an internal combustion engine. The soot sensor is electrically connected to an evaluation circuit with is permanently installed in the motor vehicle. In order to specify a method for performing functional diagnostics on a soot sensor and/or for detecting further components in the soot, with which method it is possible to detect a faulty soot sensor and/or further components in the soot in a cost-effective way, the evaluation circuit measures the temperature coefficient of the soot sensor and detects the defectiveness of the soot sensor and/or the presence of further components in the soot on the basis of the temperature coefficient of the soot sensor.

    摘要翻译: 一种用于在车辆的烟灰传感器上执行车载功能诊断和/或用于检测具有内燃机的机动车辆中的烟灰中的其它部件的方法。 煤烟传感器电连接到永久安装在机动车辆中的评估电路。 为了指定用于在烟灰传感器上执行功能诊断和/或用于检测烟灰中的其它部件的方法,用哪种方法可以以成本有效的方式检测烟灰中的故障烟灰传感器和/或其它部件 评估电路基于烟灰传感器的温度系数来测量烟灰传感器的温度系数,并根据烟炱传感器的温度系数检测煤烟传感器的缺陷和/或烟灰中其它部件的存在。

    Flow converter
    8.
    发明授权
    Flow converter 失效
    流量转换器

    公开(公告)号:US5253517A

    公开(公告)日:1993-10-19

    申请号:US16662

    申请日:1993-02-10

    IPC分类号: G01F1/684 G01F15/00

    CPC分类号: G01F1/684 G01F1/6842

    摘要: A flow converter for an air flow rate meter, especially for an intake conduit of an internal combustion engine, includes a plastic flow rectifier for converting an aspirated air mass into a laminar air flow moving in a given flow direction. The flow rectifier includes a honeycomb body and a ring integral with the honeycomb body. The honeycomb body has a surface disposed at right angles to the given flow direction and the ring protrudes out of the surface. A grid is permanently secured to the flow rectifier for generating microscopic eddies in the laminar air flow. A method for producing a flow converter for an air flow rate meter includes integrally injection molding a thermoplastic flow rectifier for converting an aspirated air mass into a laminar air flow moving in a given flow direction. The flow rectifier includes a honeycomb body having a surface disposed at right angles to the given flow direction and a ring protruding out of the surface. The grid is permanently secured to the flow rectifier for generating microscopic eddies in the laminar air flow.

    摘要翻译: 用于空气流量计的流量转换器,特别是用于内燃机的进气管道的流量转换器包括一个塑料流动整流器,用于将吸入的气体质量转换成沿给定流动方向移动的层流气流。 流动整流器包括蜂窝体和与蜂窝体一体的环。 蜂窝体具有与给定流动方向成直角的表面,并且环从表面突出。 电网永久固定在流动整流器上,用于在层流空气流中产生微小涡流。 一种用于制造空气流量计流量转换器的方法,包括一体地注塑成型热塑性流动整流器,用于将吸入的空气质量转换为沿给定流动方向移动的层流。 流动整流器包括具有与给定流动方向成直角设置的表面的蜂窝体和从该表面突出的环。 电网永久固定在流动整流器上,用于在层流空气流中产生微小涡流。

    Tank ventilation system
    9.
    发明授权

    公开(公告)号:US10214097B2

    公开(公告)日:2019-02-26

    申请号:US13133019

    申请日:2009-12-03

    IPC分类号: B60H1/26 B60K15/035

    摘要: A tank ventilation system includes a flushing line, off which a bypass branches and into which the bypass opens out. A sensor is arranged in the flushing line bypass to determine a concentration of hydrocarbons in a fluid in the flushing line. A hydrocarbon tank is coupled via a first connector to a first end of the flushing line and designed for coupling, via a second coupling, to a tank.