×

Leak detection based on fuel level

  • US 9,091,227 B2
  • Filed: 07/18/2013
  • Issued: 07/28/2015
  • Est. Priority Date: 07/18/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method for a vehicle with an engine, comprising:

  • during an engine-on condition, delivering fuel from a fuel tank to one or more cylinders of the engine while the fuel tank is sealed off from atmosphere; and

    indicating a leak based on pressure in the fuel tank being less than a threshold during an engine-on event where the engine-on event is subsequent to an engine-off condition following the engine-on condition.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×