An evaporative fuel treatment apparatus includes a canister, a vapor passage, an outside air introduction passage, a purge passage that connects the canister and an intake passage to each other, a sealing valve configured to open/close a flow channel of the vapor passage, a tank internal pressure sensor, a pressure sensor configured to detect a vapor pressure; and an electronic control unit. The electronic control unit is configured to determine whether or not there is an abnormality in the tank internal pressure sensor based on a change in the vapor pressure in changing over the sealing valve from a closed state to an open state, when an amount of change in the tank pressure in changing over the sealing valve from the closed state to the open state is lower than a first predetermined value.
Evaporative fuel treatment apparatus and control method for evaporative fuel treatment apparatus
2020-07-21
Patent
Elektronische Ressource
Englisch
IPC: | F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
EVAPORATIVE FUEL TREATMENT APPARATUS AND CONTROL METHOD FOR EVAPORATIVE FUEL TREATMENT APPARATUS
Europäisches Patentamt | 2019
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