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Apparatus and method for checking a fuel tank venting system
Apparatus and method for checking a fuel tank venting system
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机译：用于检查燃料箱通风系统的设备和方法
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摘要
The invention relates to a device and a method for checking of a tank venting system with a tank venting valve in the case of a motor vehicle, comprising a motor - rotational speed sensor, an air mass sensor and / or an idling speed regulator for providing an air-mass signal as well as an evaluation unit, which the changes in the rotational speed and air masses in the opened and the tank-venting valve is closed at least with a threshold value compares. Dollars a to the improvement of the diagnosis of the tank venting system, it is proposed that the evaluation unit in such a way that from the motor - rotational speeds with the closed and open tank-venting valve as well as the air masses with the closed and the tank venting valve open, a total reaction value is formed, which then is to be compared with a threshold value.
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