Methods and systems are provided for expediting the generation of positive pressure and vacuum during corresponding phases of a fuel system leak test. Adjustments to the settings of active grille shutters and air dams enables heat to be trapped in the vehicle for the pressure phase and a cooling air flow to be provided during a vacuum phase. The adjustments enable the response time and completion frequency of an EONV test to be improved.
Method and system for fuel system leak detection
06.04.2021
Patent
Elektronische Ressource
Englisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |