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    • 3. 发明授权
    • Method for testing correctly connected lambda sensors
    • 测试正确连接的λ传感器的方法
    • US6092413A
    • 2000-07-25
    • US025858
    • 1998-02-19
    • Michael-Rainer BuschUwe Kleinecke
    • Michael-Rainer BuschUwe Kleinecke
    • F02D41/14G01M19/00
    • F02D41/1454F02D41/1443F02D41/1495
    • The invention provides a method of checking for correct connection of lambda sensors in an internal combustion engine with one or more cylinder groups that incorporates an engine control and a plurality of lambda sensors, with a separate exhaust line with an exhaust catalytic converter and at least one lambda sensor with a lambda-regulating unit connected thereto being associated with each group of cylinders. While retaining the injection of an ignitable mixture at the beginning of a delay time that includes at least the reaction or switching time of the lambda sensors in its current regulating state, the engine control adjusts the lambda-regulating unit of at least one cylinder group, toward rich or lean engine operation and/or suspends its regulating function during the delay. The signal from the lambda sensor intended for use with the selected cylinder group is investigated to determine whether it shows a reaction that is associated with the manipulation performed and indicates a correct connection of this lambda sensor.
    • 本发明提供一种检查内部发动机中的λ传感器与一个或多个气缸组的正确连接的方法,所述气缸组包括发动机控制和多个λ传感器,具有与排气催化转化器和至少一个 与其连接的λ调节单元的λ传感器与每组气缸相关联。 尽管在延迟时间开始时保持可燃混合物的注入,其包括至少在其当前调节状态下的λ传感器的反应或切换时间,发动机控制调节至少一个气缸组的λ调节单元, 朝向丰富或精益的发动机运转和/或在延迟期间暂停其调节功能。 调查来自与所选气缸组一起使用的λ传感器的信号,以确定它是否显示与执行的操作相关联的反应并且指示该λ传感器的正确连接。