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https://drivepatents.com/patents/1071746 · 14 Dec 2005
A controller for an engine (10) including a fuel vapor processing mechanism (30). The controller determines the amount of fuel vapor drawn into an intake passage based on the concentration of fuel vapor purged into the purge passage. The controller correct...
https://drivepatents.com/patents/1100669 · 30 Oct 2002
A canister includes an adsorbent, an air layer and an air hole. An ECU obtains a physical status quantity Mgair representing the vapor stored state of the air layer, a physical status quantity Mgcan representing the fuel vapor stored state of the adsorbent...