A method is provided of determining and responding to a sunlight load on a fuel tank area of a vehicle 12. The method comprises determining the position of the vehicle 12, determining the relative position of the sun and identifying areas of shade such as a tree shadow 116 within a predetermined range of the vehicle 12. One of the shaded areas is selected as a target area and the vehicle 12 is directed to the target area upon determining that, based on the relative position of the sun (106 see fig 4), that a fuel temperature threshold will be exceeded. This may be performed autonomously via a pilot system (18 see fig 2). The vehicle 12 typically includes a vapour canister (24 see fig 1) and a fuel tank (22 see fig 1). Prevention of overheating enables the amount of evaporative gases to remain within an absorption capacity.
Vehicle repositioning for evaporative emission reduction
2018-10-10
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
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