×

CYLINDER FIRING FRACTION DETERMINATION AND CONTROL SYSTEMS AND METHODS

  • US 20150354470A1
  • Filed: 06/10/2014
  • Published: 12/10/2015
  • Est. Priority Date: 06/10/2014
  • Status: Active Grant
First Claim
Patent Images

1. A cylinder firing fraction mapping system comprising:

  • a selection module that selects a gear ratio for a transmission, a turbine speed for a torque converter, and a torque request for an engine;

    a fueling determination module that determines a first fueling rate based on a first cylinder firing fraction, the torque request, and an engine speed and that determines a second fueling rate based on a second cylinder firing fraction, the torque request, and the engine speed; and

    a mapping module that selects one of the first and second cylinder firing fractions based on a comparison of the first and second fueling rates and that stores the selected one of the first and second cylinder firing fractions in an entry of a mapping corresponding to the gear ratio, the turbine speed, and the torque request.

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