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Method for detecting a sticking tank vent valve

  • US 10,166,862 B2
  • Filed: 07/04/2016
  • Issued: 01/01/2019
  • Est. Priority Date: 07/27/2015
  • Status: Active Grant
First Claim
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1. A method for detecting a sticking tank vent valve in a motor vehicle, a temperature sensor being situated in a tank vent line between the tank vent valve and an inlet point into an intake manifold or into a turbocharger, the method comprising:

  • detecting a sticking of the tank vent valve when the absolute value of a correlation of a computed tank ventilation mass flow and of a signal value of the temperature sensor violates a predefinable threshold value.

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