Pedal position and/or pedal change rate for use in control of an engine
View Patent ↗Systems and methods for using pedal position and/or pedal change rate in the fuel side and/or air side control of an engine. By knowing the pedal position and/or pedal rate, an engine controller may anticipate future fuel and/or air needs of the engine, and adjust the fuel profile and/or air profile to meet those anticipated needs. This may help improve the responsiveness, performance and emissions of the engine.
1. A method for controlling an internal combustion engine, the engine having an exhaust recirculation valve for providing a selected amount of exhaust gas to the intake air of the engine, the engine having a pedal position, the method comprising the steps of:
identifying a pedal position;
identifying a pedal change rate of the pedal position;
providing a pedal position signal and a pedal change rate signal to at least one map of a controller; and
controlling the amount of exhaust gas recirculation that is provided to the intake air of the engine based on the pedal position signal, and the pedal change rate signal provided to the at least one map, and one or more past pedal change rates.
2. A method for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the method comprising the steps of:
identifying a pedal change rate of the pedal position;
controlling the air charge profile based on the pedal change rate;
wherein said step of controlling the air charge profile based on the pedal change rate includes the step of controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine; and
wherein the controlling the air charge profile step uses one or more past pedal change rates.
3. A method for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the method comprising the steps of:
inputting a pedal position and a pedal change rate into at least one dynamic map;
controlling the air charge profile based partially on the pedal position and based partially on the pedal change rate inputted to the at least one dynamic map; and
wherein said step of controlling the air charge profile based partially on the pedal position and partially on the pedal change rate includes the step of controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine.
4. The method of claim 3 , wherein said at least one dynamic map includes:
a first dynamic map adapted to provide an engine speed setpoint for controlling the fueling profile of fuel provided to the engine; and
a second dynamic map adapted to provide one or more air-side control signals for controlling the air charge profile of air provided to the engine.
5. The method of claim 3 , further comprising the step of controlling the fueling profile based, at least in part, on the pedal change rate.
6. The method of claim 3 , further comprising the step of controlling the fueling profile based, at least in part, on the pedal position.
7. The method of claim 3 , wherein the engine includes a turbo charger for providing a turbo boost to the air that is provided to the engine, wherein the air charge profile includes the turbo boost.
8. The method of claim 7 , wherein the controlling step includes controlling the turbo boost based, at least in part, on the pedal change rate.
9. The method of claim 3 , wherein the controlling step uses a current pedal change rate.
10. The method of claim 3 , wherein the controlling step uses one or more past pedal change rates.
11. A method for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the method comprising the steps of:
identifying the pedal position;
identifying a pedal change rate of the pedal position; and
controlling the air charge profile based on the identified pedal position, and the pedal change rate, and one or more past pedal change rates;
wherein said step of controlling the air charge profile based, on the pedal position, pedal change rate, and one or more past pedal change rates includes the step of controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine.
12. A method for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the method comprising the steps of:
inputting a the pedal position and a pedal change rate into at least one dynamic map;
controlling the air charge profile based on the pedal position, and based on pedal change rate, and based on one or more past pedal change rates inputted to the at least one dynamic map; and
wherein said step of controlling the air charge profile based on the pedal position, pedal change rate, and one or more past pedal change rates, includes the step of controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine.
13. A method for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the method comprising the steps of:
identifying a pedal change rate of the pedal position;
controlling the air charge profile based, at least in part, on the pedal change rate;
wherein said step of controlling the air charge profile based, at least in part, on the pedal change rate includes the step of controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine;
wherein the engine includes a turbo charger for providing a turbo boost to the air that is provided to the engine, wherein the air charge profile includes the turbo boost; and
wherein the controlling step includes controlling the turbo charger for adjusting the amount of turbo boost based, at least in part, on one or more past pedal change rates.
14. A method for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the method comprising the steps of:
identifying the pedal position;
identifying a pedal change rate of the pedal position;
providing a pedal position signal and pedal change rate signal to at least one dynamic map of a controller; and
controlling the air charge profile based on the pedal position signal and the pedal change rate signal provided to the at least one dynamic map;
wherein said step of controlling the air charge profile based on the pedal position signal and pedal change rate signal includes the step of controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine.
15. The method of claim 14 further comprising:
controlling the fueling profile based, at least in part, on the pedal change rate.
16. The method of claim 15 further comprising the step of controlling the fueling profile based, at least in part, on the pedal position.
17. The method of claim 14 further comprising the step of controlling the fueling profile based, at least in part, on the pedal position.
18. The method of claim 14 wherein the engine includes a turbo charger for providing a turbo boost to the air that is provided to the engine, wherein the air charge profile includes the turbo boost.
19. The method of claim 18 wherein the controlling step includes controlling the turbo boost based, at least in part, on the pedal change rate.
20. The method of claim 14 wherein the controlling step uses a current pedal change rate.
21. The method of claim 14 wherein the controlling step uses one or more past pedal change rates.
22. The method of claim 14 wherein the controlling step uses one or more Proportional-Integral-Derivative (PID) control loops.
23. The method of claim 14 wherein the controlling step uses one or more predictive constrained control loops.
24. The method of claim 23 wherein at least one of the predictive constrained control loops includes a Smith predictor.
25. The method of claim 14 wherein the controlling step uses one or more multiparametric control loops.
26. The method of claim 14 wherein the controlling step uses one or more model based predictive control loops.
27. The method of claim 14 wherein the controlling step uses one or more dynamic matrix control loops.
28. The method of claim 14 wherein the controlling step uses one or more statistical processes control loop.
29. The method of claim 14 wherein the controlling step uses a knowledge based expert system.
30. The method of claim 14 wherein the controlling step uses a neural network.
31. The method of claim 14 wherein the controlling step uses fuzzy logic.
32. An engine controller for controlling an internal combustion engine, the engine having an exhaust recirculation valve for providing a selected amount of exhaust gas to the intake air of the engine, the engine having a pedal position, the engine controller comprising:
an input for receiving one or more signals related to the pedal position;
a controller that provides the pedal position and a pedal change rate to at least one map of the controller, and controls the amount of exhaust gas recirculation that is provided to the intake air of the engine based on the pedal position, the pedal change rate, and one or more past pedal change rates.
33. An engine controller for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the engine controller comprising:
an input for receiving one or more signals related to the pedal position;
a controller that identifies a pedal change rate of the pedal position and controls the air charge profile based on the pedal change rate and/or one or more past pedal change rates, including controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine.
34. An engine controller for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, the fueling profile being at least partially controlled by a pedal position, the engine controller comprising:
an input for receiving one or more signals related to the pedal position;
a controller that provides a pedal position and a pedal change rate to at least one dynamic map of the controller and controls the air charge profile based at least in part on the pedal position and at least in part on the pedal change rate provided to the at least one dynamic map, including controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine.
35. The engine controller of claim 34, wherein said at least one dynamic map of the controller includes:
a first dynamic map for providing an engine speed setpoint for controlling the fueling profile of fuel provided to the engine; and
a second dynamic map for providing one or more air-side control signals for controlling the air charge profile of air provided to the engine.
36. The engine controller of claim 34, wherein the controller controls the fueling profile based, at least in part, on the pedal change rate.
37. The engine controller of claim 34, wherein the controller controls the fueling profile based, at least in part, on the pedal position.
38. The engine controller of claim 34, wherein the engine includes a turbo charger for providing a turbo boost to the air that is provided to the engine, wherein the air charge profile includes the turbo boost.
39. The engine controller of claim 38, wherein the controller controls the turbo boost based, at least in part, on the pedal change rate.
40. The engine controller of claim 34, wherein the controller controls the air charge profile based at least in part on a current pedal change rate.
41. The engine controller of claim 34, wherein the controller controls the air charge profile based at least in part on one or more past pedal change rates.
42. An engine controller for controlling an internal combustion engine, the engine having a fueling profile that defines the fuel that is provided to the engine, and an air charge profile that defines the air that is provided to the engine, wherein the engine includes a turbo charger for providing a turbo boost to the air that is provided to the engine, wherein the air charge profile includes the turbo boost, the fueling profile being at least partially controlled by a pedal position, the engine controller comprising:
an input for receiving one or more signals related to the pedal position;
a controller for controlling the air charge profile based, at least in part, on a pedal change rate and/or one or more past pedal change rates, including controlling an exhaust gas recirculation (EGR) valve to provide a selected amount of exhaust gas recirculation to the engine, and controlling the turbo charger to adjust the amount of turbo boost based, at least in part, on one or more past pedal change rates.