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SYSTEMS AND METHODS FOR MANAGING BLEED EMISSIONS IN PLUG-IN HYBRID ELECTRIC VEHICLES

  • US 20150158378A1
  • Filed: 12/09/2013
  • Published: 06/11/2015
  • Est. Priority Date: 12/09/2013
  • Status: Active Grant
First Claim
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1. A method for a plug-in hybrid electric vehicle, comprising:

  • during a first condition, including an engine-off condition and the plug-in hybrid electric vehicle coupled to an external power source;

    heating a fuel vapor canister based on a fuel tank vacuum; and

    opening a fuel tank isolation valve to draw heated vapors into a fuel tank.

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