Enhanced minimum mass limit for direct injection engines
AssigneeGM Global Technology Operations LLC
InventorsJ.Michael Gwidt, Daniel P Himes
Life of this patent
Estimating the term…
Abstract
In accordance with exemplary embodiments, methods and systems are provided for controlling fuel injection by a fuel injector of a direct injection engine. In one embodiment, a method includes: storing, in a first data storage device, a first table of values; storing, in a second data storage device, a second table of values; and adjusting, via instructions provided by a processor of the vehicle, a minimum mass value used to control the fuel injection based on an injector learned value, the first table, and the second table, wherein the injector learned value is set based on an amount of injector learning completed.
Claims20
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.
(canceled)
A system for controlling fuel injection by a fuel injector of a direct injection engine, the system comprising:
- a data storage device configured to store first table of values and a second table of values;
- and
- a processor configured to at least facilitate blending 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 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.
(canceled)
A vehicle comprising:
- an engine having a plurality fuel injectors;
- one or more sensors of the vehicle configured to sense observable conditions of the plurality of fuel injectors;
- and
- a processor that is coupled to the one or more sensors and that is configured to at least facilitate storing, in a first data storage device, a first table of values, storing, in a second data storage device, a second table of values 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 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.
(canceled)
Dependencies are inferred from the claim text.