| 摘要 |
The invention relates to a method and a device for actuating a setting element, especially for adjusting a throttle valve in the induction tract of an internal combustion engine. Said setting element comprises an electromotor. According to prior art, the position of the setting element is detected by means of sensors for obtaining data on malfunctions for instance. Said data can be used in the engine control. Sensors, however, are susceptible to interference, especially since additional components have to be used. According to the invention, the engine current (I) is observed for a period of time (t). The setting device functions well as long as the current is situated within a defined measuring window (20). Malfunctions represented by the curves B, C and D are detected when the motor current (I) disappears from the measuring window. One arithmetic unit only is required for detecting the error. Said unit conveys the error to the engine control for instance.
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