| 摘要 |
In a method for operating an exhaust gas purifying device, with at least one catalyst for filtering exhaust gas and at least one lambda sensor arranged in the exhaust gas, an end of a time period assigned to a maximum or minimum of a delayed signal value supplied by the lambda sensor is determined in that a variable value tracks the signal value and, if the signal value falls short of or exceeds the variable value by a specific difference value, the end of the time period is determined. The end of a time period is corrected on the basis of the time constant of the delay. |
