×

Sensor based measurement and purge control of fuel vapors in internal combustion engines

  • US 9,631,567 B2
  • Filed: 08/15/2013
  • Issued: 04/25/2017
  • Est. Priority Date: 08/15/2013
  • Status: Expired due to Fees
First Claim
Patent Images

1. A fuel control system for a vehicle, comprising:

  • a pressure compensation module that compensates an intake oxygen signal based on an intake pressure signal and that generates a compensated intake oxygen signal;

    a blow-by estimation module that generates an estimated blow-by flow;

    a purge flow estimation module that estimates the purge flow based on the compensated intake oxygen signal and the estimated blow-by flow; and

    a fuel control estimation module that reduces fueling to injectors of an engine of the vehicle based on the purge flow.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×