Process for cleaning exhaust gas using lambda control
    1.
    发明授权
    Process for cleaning exhaust gas using lambda control 有权
    使用λ控制来清洁排气的过程

    公开(公告)号:US06550307B1

    公开(公告)日:2003-04-22

    申请号:US09455397

    申请日:1999-12-06

    IPC分类号: F02D4114

    摘要: A process for cleaning exhaust gas flow from an internal combustion engine using a catalyst, a lambda probe is disposed in the exhaust gas flow upstream from the catalyst and is connected to a controller that actuates the lambda probe, the controller receives a raw signal output from the lambda probe and forms a measurement signal that is supplied to control the internal combustion engine. The process includes regulating operation of the internal combustion engine such that a predetermined value of the lambda probe corresponds to a certain level of the measurement signal. Trimming the certain level of the measurement signal by a set value determined with an additional measuring pickup located downstream of the catalyst is performed, the trimming corrects the certain level of the measurement signal that corresponds to the predetermined value of the lambda probe. Switching the controller to a test mode in predetermined states of operation by the internal combustion engine and determining an actual value of a measurement signal falsification developed in the controller is performed. Compensating the measurement signal inversely to the actual value of the measurement signal falsification takes place. Varying the set value inversely to the actual value of the measurement signal falsification is performed.

    摘要翻译: 用于使用催化剂清洗来自内燃机的废气流的方法,λ探针设置在催化剂上游的排气流中,并连接到致动λ探针的控制器,控制器接收从 λ探针并形成用于控制内燃机的测量信号。 该过程包括调节内燃机的操作,使得λ探针的预定值对应于测量信号的一定水平。 执行测量信号的一定水平,用位于催化剂下游的附加测量拾取器确定的设定值进行修整,校正与λ探针的预定值对应的测量信号的一定水平。 执行由内燃机在预定操作状态下将控制器切换到测试模式并确定在控制器中产生的测量信号伪造的实际值。 将测量信号与测量信号的实际值相反地进行伪造。 将设定值与测量信号的实际值相反,进行伪造。

    Method and a device for operating a internal combustion engine
    2.
    发明申请
    Method and a device for operating a internal combustion engine 有权
    用于操作内燃机的方法和装置

    公开(公告)号:US20090248280A1

    公开(公告)日:2009-10-01

    申请号:US12403392

    申请日:2009-03-13

    IPC分类号: F02D41/00 F01N11/00 F01N3/10

    摘要: For operating a internal combustion engine a first characteristic value is determined depending on a distance integral of at least a portion of a control signal of an oxygen sensor control based on control reference signal characteristics across a given time period. Depending on the first characteristic value (KW—1) a quality value (GW—1) is determined. Depending on the quality value (GW1) either the existence or the non existence of an error of the exhaust sensor is detected.

    摘要翻译: 为了操作内燃机,基于在给定时间段内的控制参考信号特性,取决于氧传感器控制的控制信号的至少一部分的距离积分来确定第一特征值。 根据第一特征值(KW-1),确定质量值(GW-1)。 根据质量值(GW1),检测到排气传感器的存在或不存在误差。

    Method and a device for operating a internal combustion engine
    3.
    发明授权
    Method and a device for operating a internal combustion engine 有权
    用于操作内燃机的方法和装置

    公开(公告)号:US07997257B2

    公开(公告)日:2011-08-16

    申请号:US12403392

    申请日:2009-03-13

    IPC分类号: F02D41/00

    摘要: For operating a internal combustion engine a first characteristic value is determined depending on a distance integral of at least a portion of a control signal of an oxygen sensor control based on control reference signal characteristics across a given time period. Depending on the first characteristic value (KW—1) a quality value (GW—1) is determined. Depending on the quality value (GW1) either the existence or the non existence of an error of the exhaust sensor is detected.

    摘要翻译: 为了操作内燃机,基于在给定时间段内的控制参考信号特性,取决于氧传感器控制的控制信号的至少一部分的距离积分来确定第一特征值。 根据第一特征值(KW-1),确定质量值(GW-1)。 根据质量值(GW1),检测到排气传感器的存在或不存在误差。

    Process for cleaning exhaust gas using lambda control

    公开(公告)号:US06336352B1

    公开(公告)日:2002-01-08

    申请号:US09455397

    申请日:1999-12-06

    IPC分类号: F02D4114

    摘要: A process for cleaning exhaust gas flow from an internal combustion engine using a catalyst, a lambda probe is disposed in the exhaust gas flow upstream from the catalyst and is connected to a controller that actuates the lambda probe, the controller receives a raw signal output from the lambda probe and forms a measurement signal that is supplied to control the internal combustion engine. The process includes regulating operation of the internal combustion engine such that a predetermined value of the lambda probe corresponds to a certain level of the measurement signal. Trimming the certain level of the measurement signal by a set value determined with an additional measuring pickup located downstream of the catalyst is performed, the trimming corrects the certain level of the measurement signal that corresponds to the predetermined value of the lambda probe. Switching the controller to a test mode in predetermined states of operation by the internal combustion engine and determining an actual value of a measurement signal falsification developed in the controller is performed. Compensating the measurement signal inversely to the actual value of the measurement signal falsification takes place. Varying the set value inversely to the actual value of the measurement signal falsification is performed.