公开(公告)号：US09062623B2

公开(公告)日：2015-06-23

申请号：US13381437

申请日：2010-06-30

申请人： Cyril Verdier ,  Stefan Klein ,  Gerhard Lemke ,  Karsten Glashoff ,  Peter Brida ,  Frank Meier ,  Thomas Seiler

发明人： Cyril Verdier ,  Stefan Klein ,  Gerhard Lemke ,  Karsten Glashoff ,  Peter Brida ,  Frank Meier ,  Thomas Seiler

IPC分类号： G01N37/00 ,  F02D41/14 ,  G01N27/417 ,  F02D41/26

CPC分类号： F02D41/1495 ,  F02D41/1494 ,  F02D41/266 ,  G01N27/4175

摘要： A method is described for diagnosing a heatable exhaust gas sensor of an internal combustion engine, in which a predefined chronologically varying or constant voltage or a predefined chronologically varying or constant current is generated with the aid of a voltage source, the voltage or the current is applied to terminals of the exhaust gas sensor, a current or applied voltage, which flows through the voltage source when the voltage or the current is applied, is detected, and the current or the voltage is analyzed to diagnose the exhaust gas sensor. To diagnose the exhaust gas sensor, which permits a reliable and accurate diagnosis of the exhaust gas sensor and allows a statement about the type of a possibly existing error on the exhaust gas sensor, the method is executed independently of a control and/or regulating unit of the internal combustion engine, an operating temperature of the exhaust gas sensor being regulated to a predefined temperature value with the aid of a regulating element, which is separate from the control and/or regulating unit.

摘要翻译： 描述了一种用于诊断内燃机的可加热废气传感器的方法，其中借助于电压源产生预定的时间变化或恒定电压或预定的时间顺序变化或恒定的电流，电压或电流是 检测到排气传感器的端子时，检测出施加电压或电流时流过电压源的电流或施加电压，分析电流或电压，对废气传感器进行诊断。 为了诊断废气传感器，其允许对排气传感器的可靠和准确的诊断，并且允许关于废气传感器上可能存在的误差的类型的陈述，该方法独立于控制和/或调节单元执行 借助于与控制和/或调节单元分开的调节元件将废气传感器的工作温度调节到预定温度值。

公开(公告)号：US20120167656A1

公开(公告)日：2012-07-05

申请号：US13381437

申请日：2010-06-30

申请人： Cyril Verdier ,  Stefan Klein ,  Gerhard Lemke ,  Karsten Glashoff ,  Peter Brida ,  Frank Meier ,  Thomas Seiler

发明人： Cyril Verdier ,  Stefan Klein ,  Gerhard Lemke ,  Karsten Glashoff ,  Peter Brida ,  Frank Meier ,  Thomas Seiler

IPC分类号： G01N33/00

CPC分类号： F02D41/1495 ,  F02D41/1494 ,  F02D41/266 ,  G01N27/4175

摘要： A method is described for diagnosing a heatable exhaust gas sensor of an internal combustion engine, in which a predefined chronologically varying or constant voltage or a predefined chronologically varying or constant current is generated with the aid of a voltage source, the voltage or the current is applied to terminals of the exhaust gas sensor, a current or applied voltage, which flows through the voltage source when the voltage or the current is applied, is detected, and the current or the voltage is analyzed to diagnose the exhaust gas sensor. To diagnose the exhaust gas sensor, which permits a reliable and accurate diagnosis of the exhaust gas sensor and allows a statement about the type of a possibly existing error on the exhaust gas sensor, the method is executed independently of a control and/or regulating unit of the internal combustion engine, an operating temperature of the exhaust gas sensor being regulated to a predefined temperature value with the aid of a regulating element, which is separate from the control and/or regulating unit.

摘要翻译： 描述了一种用于诊断内燃机的可加热废气传感器的方法，其中借助于电压源产生预定的时间变化或恒定电压或预定的时间顺序变化或恒定的电流，电压或电流是 检测到排气传感器的端子时，检测出施加电压或电流时流过电压源的电流或施加电压，分析电流或电压，对废气传感器进行诊断。 为了诊断废气传感器，其允许对排气传感器的可靠和准确的诊断，并且允许关于废气传感器上可能存在的误差的类型的陈述，该方法独立于控制和/或调节单元执行 借助于与控制和/或调节单元分开的调节元件将废气传感器的工作温度调节到预定温度值。