US 11,754,013 B1
Enhanced minimum mass limit for direct injection engines
J. Michael Gwidt, Brighton, MI (US); and Daniel P Himes, Detroit, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Feb. 18, 2022, as Appl. No. 17/651,656.
Int. Cl. F02D 41/24 (2006.01)
CPC F02D 41/2467 (2013.01) [F02D 41/2422 (2013.01); F02D 41/2487 (2013.01); F02D 2200/0614 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for controlling fuel injection by a fuel injector of a direct injection engine, the method comprising:
storing, in a first data storage device, a first table of values;
storing, in a second data storage device, a second table of values;
blending, via instructions provided by a processor of the vehicle, a mass value from the first table and a mass value from the second table as a function of an injector learned value to obtain a result; and
adjusting, via instructions provided by the processor of the vehicle, a minimum mass value used to control the fuel injection based on the result, wherein the injector learned value is set based on an amount of injector learning completed.