Method for checking the functionality of vehicle tank ventilation equipment detects parameters in source pressure during the introduction of excess pressure in order to specify the march of pressure

摘要

An adsorption filter has a venting pipe connected to a vehicle fuel tank by a connector pipe. A tank ventilation valve connects to the adsorption filter through a valve duct using a source of pressure to introduce excess pressure into the tank ventilation equipment to counter atmospheric pressure. During the introduction of excess pressure parameters in the source of pressure are detected for specifying the march of pressure.