Pedal position and/or pedal change rate for use in control of an engine
First Claim
Patent Images
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.
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Abstract
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.
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Citations
42 Claims
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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:
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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.
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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:
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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.
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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:
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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. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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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:
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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.
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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:
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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.
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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:
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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.
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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:
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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. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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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:
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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.
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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:
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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.
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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:
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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. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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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:
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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.
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Specification