A system, method, and engine control module for energy ignition management of a combustion engine. The method may be performed by the system or the engine control module. The method includes determining operating conditions of the combustion engine, setting ignition energy characteristics for a dedi
A system, method, and engine control module for energy ignition management of a combustion engine. The method may be performed by the system or the engine control module. The method includes determining operating conditions of the combustion engine, setting ignition energy characteristics for a dedicated EGR cylinder and a non-dedicated EGR cylinder based on the operating conditions. The ignition energy characteristics include at least one of magnitude of energy, current, voltage, and ignition energy duration. At least one characteristic of the ignition energy characteristics for the non-dedicated EGR cylinder is different than a corresponding characteristic for the dedicated EGR cylinder. The method also includes energizing ignition aid plugs based on the ignition energy characteristics.
대표청구항▼
1. A method for ignition energy management, the method comprising: determining operating conditions of a combustion engine including at least one dedicated exhaust gas recirculation (EGR) cylinder, a non-dedicated EGR cylinder, and ignition aid plugs configured to aid ignition in the at least one de
1. A method for ignition energy management, the method comprising: determining operating conditions of a combustion engine including at least one dedicated exhaust gas recirculation (EGR) cylinder, a non-dedicated EGR cylinder, and ignition aid plugs configured to aid ignition in the at least one dedicated EGR cylinder and the non-dedicated EGR cylinder;setting ignition energy characteristics for the at least one dedicated EGR cylinder and for the non-dedicated EGR cylinder based on the operating conditions, the ignition energy characteristics including at least one of magnitude of energy, current, voltage, waveform shape, or ignition energy duration, and excluding timing of ignition events, at least one characteristic of the ignition energy characteristics for the non-dedicated EGR cylinder being different than a corresponding characteristic for the at least one dedicated EGR cylinder, wherein the at least one dedicated EGR cylinder comprises two dedicated EGR cylinders including a first dedicated EGR cylinder and a second dedicated EGR cylinder;setting a first target air/fuel (A/F) ratio;setting a second target A/F ratio;setting the ignition energy characteristics for the first dedicated EGR cylinder based on the first target A/F ratio;setting the ignition energy characteristics for the second dedicated EGR cylinder based on the second target A/F ratio;energizing the ignition aid plug of one of the two dedicated EGR cylinders based on the ignition energy characteristics for the first dedicated EGR cylinder; andenergizing the ignition aid plug of the other of the two dedicated EGR cylinders based on the ignition energy characteristics for the second dedicated EGR cylinder. 2. The Method of claim 1, further comprising: setting timing of ignition events. 3. The Method of claim 1, wherein the first target A/F ratio is richer than the second target A/F ratio during a first time period, and the second target A/F ratio is richer than the first target A/F ratio during a second time period. 4. The Method of claim 3, wherein the first target A/F ratio is rich during the first time period and lean during the second time period. 5. The Method of claim 4, further comprising: setting a stoichiometric A/F ratio for the non-dedicated EGR cylinder; andsetting the ignition energy characteristics for the non-dedicated EGR cylinder based on the stoichiometric A/F ratio. 6. The Method of claim 1, further comprising: setting a first target EGR fraction; andsetting the ignition energy characteristics for the at least one dedicated EGR cylinder based on a difference between the first target EGR fraction and a determined EGR fraction. 7. The Method of claim 1, further comprising: varying the ignition energy characteristics in response to a combustion engine load change. 8. The Method of claim 7, wherein varying the ignition energy characteristics comprises deactivating the ignition aid plug for the non-dedicated EGR cylinder in a start mode and activating the ignition aid plug for the non-dedicated EGR cylinder in a run mode. 9. The Method of claim 8, wherein varying the ignition energy characteristics further comprises switching from the start mode to the run mode responsive to a predetermined amount of recirculated exhaust gas. 10. The Method of claim 1, further comprising setting the ignition energy characteristics for the at least one dedicated EGR cylinder based on a type of turbocharger of the combustion engine. 11. The Method of claim 1, further comprising: starting the combustion engine on the at least one dedicated EGR cylinder without the non-dedicated EGR cylinder. 12. A combustion engine comprising: at least one dedicated exhaust gas recirculation (EGR) cylinder;a non-dedicated EGR cylinder;ignition aid plugs structured to aid ignition in the at least one dedicated EGR cylinder and the non-dedicated EGR cylinder;a plurality of sensors;an ignition control unit structured to energize the ignition aid plugs based on ignition control signals; andan engine control module electronically coupled to the sensors and to the ignition control unit, the engine control module including: an operating conditions determining module structured to determine operating conditions of the combustion engine using signals from the sensors;an air/fuel (A/F) ratio setting module structured to set a first target A/F ratio and a second target A/F ratio;an ignition energy setting module structured to set ignition energy characteristics for the at least one dedicated EGR cylinder and the non-dedicated EGR cylinder based on the operating conditions, the ignition energy characteristics including at least one of magnitude of energy, current, voltage, waveform shape, or ignition energy duration, and excluding timing of ignition events, at least one characteristic of the ignition energy characteristics for the non-dedicated EGR cylinder being different than a corresponding ignition energy characteristic for the at least one dedicated EGR cylinder, wherein the at least one dedicated EGR cylinder comprises two dedicated EGR cylinders including a first dedicated EGR cylinder and a second dedicated EGR cylinder, and wherein the ignition energy characteristics for the first dedicated EGR cylinder are based on the first target A/F ratio and the ignition energy characteristics for the second dedicated EGR cylinder are based on the second target A/F ratio; anda communication module structured to transmit the ignition control signals to the ignition control unit to energize the ignition aid plug of one of the two dedicated EGR cylinders based on the ignition energy characteristics for the first dedicated EGR cylinder and to energize the ignition aid plug of the other of the two dedicated EGR cylinders based on the ignition energy characteristics for the second dedicated EGR cylinder, the ignition control signals based on the ignition energy characteristics set by the ignition energy setting module. 13. The combustion engine of claim 12, further comprising: an ignition timing module structured to set timing of ignition events for the at least one EGR cylinder and the non-dedicated EGR cylinder. 14. The combustion engine of claim 12, wherein the first target A/F ratio is richer than the second target A/F ratio during a first time period, and the second target A/F ratio is richer than the first target A/F ratio during a second time period. 15. The combustion engine of claim 14, wherein the A/F ratio setting module is further structured to set a stoichiometric A/F ratio for the non-dedicated EGR cylinder, and the ignition energy characteristics setting module is further structured to set the ignition energy characteristics for the non-dedicated EGR cylinder based the stoichiometric A/F ratio. 16. The combustion engine of claim 12, the engine control module further comprising an EGR fraction setting module structured to set a first target EGR fraction and determine an EGR fraction, the ignition energy characteristics setting module further structured to set the ignition energy characteristics for the at least one dedicated EGR cylinder based on a difference between the first target EGR fraction and the determined EGR fraction. 17. The combustion engine of claim 12, wherein the ignition energy characteristics setting module is further structured to vary the ignition energy characteristics to deactivate the ignition aid plug of the non-dedicated EGR cylinder in a start mode and to activate the ignition aid plug of the non-dedicated EGR cylinder in a run mode. 18. The combustion engine of claim 17, wherein one of the sensors is structured to sense a characteristic indicative of an amount of exhaust gas recirculated through the non-dedicated EGR cylinder, the ignition energy characteristics setting module further structured to switch from the start mode to the run mode responsive to the amount of exhaust gas exceeding a predetermined amount. 19. The combustion engine of claim 12, the combustion engine further comprising a turbocharger, the ignition energy characteristics setting module further structured to set the ignition energy characteristics for the at least one dedicated EGR cylinder based on a type of the turbocharger. 20. An engine control module comprising: an operating conditions determining module structured to determine operating conditions of a combustion engine using sensor signals, the combustion engine including at least one dedicated exhaust gas recirculation (EGR) cylinder, a non-dedicated EGR cylinder, and ignition aid plugs configured to aid ignition in the at least one dedicated EGR cylinder and the non-dedicated EGR cylinder;an air/fuel (A/F) ratio setting module structured to set a first target A/F ratio and a second target A/F ratio;an ignition energy setting module structured to set ignition energy characteristics for the at least one dedicated EGR cylinder and the non-dedicated EGR cylinder based on the operating conditions, the ignition energy characteristics including at least one of magnitude of energy, current, voltage, waveform shape, or ignition energy duration, and excluding timing of ignition events, at least one characteristic of the ignition energy characteristics for the non-dedicated EGR cylinder being different than a corresponding ignition energy characteristic for the at least one dedicated EGR cylinder, wherein the at least one dedicated EGR cylinder comprises two dedicated EGR cylinders including a first dedicated EGR cylinder and a second dedicated EGR cylinder, and wherein the ignition energy characteristics for the first dedicated EGR cylinder are based on the first target A/F ratio and the ignition energy characteristics for the second dedicated EGR cylinder are based on the second target A/F ratio; anda communication module structured to transmit ignition control signals to an ignition control unit to energize the ignition aid plug of one of the two dedicated EGR cylinders based on the ignition energy characteristics for the first dedicated EGR cylinder and to energize the ignition aid plug of the other of the two dedicated EGR cylinders based on the ignition energy characteristics for the second dedicated EGR cylinder, the ignition control signals based on the ignition energy characteristics set by the ignition energy setting module. 21. The engine control module of claim 20, wherein the first target A/F ratio is richer than the second target A/F ratio during a first time period, and the second target A/F ratio is richer than the first target A/F ratio during a second time period. 22. The engine control module of claim 20, the engine control module further comprising an EGR fraction setting module structured to set a first target EGR fraction and determine an EGR fraction, the ignition energy characteristics setting module further structured to set the ignition energy characteristics for the dedicated EGR cylinder based on a difference between the first target EGR fraction and the determined EGR fraction. 23. The engine control module of claim 20, wherein the ignition energy characteristics setting module is further structured to vary the ignition energy characteristics to deactivate the ignition aid plug of the non-dedicated EGR cylinder in a start mode and to activate the ignition aid plug of the at least one non-dedicated EGR cylinder in a run mode.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (10)
Alger, II, Terrence Francis; Mangold, Barrett Wade; Gingrich, Jess Witman; Mehta, Darius, EGR system with dedicated EGR cylinders.
Ott, Karl; Grass, Gerd; Kaiser, Lilian; Klee, Peter; Weiss, Ruediger, Method for starting an internal combustion engine having several cylinder banks and being operated with gasoline direct injection.
Thomas Christopher P. (West Bloomfield MI) McCombie Jay C. (Rochester Hills MI) Weber Gregory T. (Commerce Twp. MI) Ehlers Jeffery C. (Davisburg MI) Soltis Dennis A. (Goodrich MI), Method of adjusting idle spark for an individual cylinder of an internal combustion engine.
Hartford Thomas W. (Livonia MI) Johnson Edwin A. (Clarkston MI) Russo Frank A. (Williamsburg VA), Microprocessor-based electronic engine control system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.