Engine controller
AssigneeHoneywell International Inc.
InventorsGregory E. Stewart, Michael L. Rhodes
Life of this patent
Estimating the term…
Abstract
A system for controlling fuel to an engine to minimize emissions in an exhaust of the engine. There may be a controller connected to an actuator, for example a fuel control actuator, of the engine and to emissions sensors, such as an NOx and/or PM sensor, proximate to an exhaust output of the engine. The controller, for example a speed controller, may have an input connected to an output of a pedal or desired speed setting mechanism. A speed sensor at a power output of the engine may be connected to an input of the controller.
Claims20
An engine controller for controlling at least part of an engine of a vehicle during normal use of the vehicle in the field, the engine controller comprising:
- one or more inputs for receiving one or more input signals from one or more engine sensors;
- two or more outputs for providing control signals to two or more actuators that control two or more inputs to the engine;
- a controller coupled to the one or more inputs and the two or more outputs, the controller implementing a multi-parameter model that models the effects of changes in the two or more actuators on each of one or more engine operating parameters;
- and
- wherein the controller is configured to use the one or more input signals and adjust two or more actuators of the engine such that a performance index is optimized, wherein the performance index includes terms that are related to the one or more engine operating parameters.
An engine controller for controlling at least part of an engine of a vehicle during normal use of the vehicle in the field, the engine controller comprising:
- two or more outputs for providing control signals to two or more actuators that control two or more inputs of an engine;
- a controller coupled to the two or more outputs, the controller implementing a multi-parameter model that models the effects of substantially simultaneous changes in the two or more actuators on each of one or more engine operating parameters;
- and
- wherein the controller is configured to adjust the two or more actuators of the engine such that a performance index is optimized, wherein the performance index includes terms that are related to the one or more engine operating parameters.
An engine controller for controlling at least part of an engine of a vehicle during normal use of the vehicle in the field, the engine controller comprising:
- two or more inputs for receiving two or more input signals from at least two engine sensors;
- two or more outputs for providing control signals to two or more actuators that control two or more inputs to an engine;
- a controller coupled to the two or more inputs and the two or more outputs, the controller implementing a multi-parameter model that models the effects of changes in the two or more actuators on each of two or more engine operating parameters;
- and
- wherein the controller is configured to use the two or more input signals from the at least two engine sensors and adjust at least one actuator of the engine to make a change to one or more of the inputs to the engine in order to produce a controlled change in each of the two or more engine operating parameters as modeled by the multi-parameter model.
Dependencies are inferred from the claim text.