A method for operating an engine with a fuel reformer is presented. In one embodiment a method for operating an engine by injecting a gaseous fuel and a liquid fuel to at least an engine cylinder is presented. The mixture of an engine cylinder may be diluted with EGR and a fraction of gaseous fuel m
A method for operating an engine with a fuel reformer is presented. In one embodiment a method for operating an engine by injecting a gaseous fuel and a liquid fuel to at least an engine cylinder is presented. The mixture of an engine cylinder may be diluted with EGR and a fraction of gaseous fuel may be increased relative to a fraction of liquid fuel injected to a cylinder in response to an operator tip-out.
대표청구항▼
1. A method for operating an engine, comprising: injecting a gaseous fuel and a liquid fuel to an engine cylinder;diluting an air-fuel mixture of the engine cylinder with EGR, an EGR amount adjusted responsive to a fuel level of a liquid fuel storage tank; andincreasing a fraction of gaseous fuel re
1. A method for operating an engine, comprising: injecting a gaseous fuel and a liquid fuel to an engine cylinder;diluting an air-fuel mixture of the engine cylinder with EGR, an EGR amount adjusted responsive to a fuel level of a liquid fuel storage tank; andincreasing a fraction of gaseous fuel relative to a fraction of liquid fuel injected to the engine cylinder in response to the EGR amount of the engine cylinder. 2. The method of claim 1, wherein said gaseous fuel is comprised of vaporized alcohol and/or H2, CO, and CH4, and wherein said gaseous fuel is increased in response to an operator tip-out. 3. The method of claim 1, wherein said fraction of gaseous fuel is injected to an intake manifold and wherein said air-fuel mixture is diluted via a group comprising one or more of an EGR valve, camshaft phasing, and a variable valve actuator, and where a duration and an amount of gaseous fuel injection is based on a number of cylinder events. 4. The method of claim 1, wherein said fraction of gaseous fuel is injected directly into the engine cylinder. 5. The method of claim 1, wherein said fraction of liquid fuel is greater than said fraction of gaseous fuel before said fraction of gaseous fuel is increased. 6. The method of claim 1, wherein said fraction of liquid fuel is less than said fraction of gaseous fuel before said fraction of gaseous fuel is increased. 7. The method of claim 1, wherein spark advance is adjusted in response to increasing said fraction of gaseous fuel relative to said fraction of liquid fuel injected to said engine cylinder. 8. A method for operating an engine, comprising: operating an engine by injecting a gaseous fuel and a liquid fuel to engine cylinder;diluting a mixture of an engine cylinder with an amount of EGR, the amount adjust responsive to a fuel level of a liquid fuel storage tank;increasing a fraction of gaseous fuel relative to a fraction of liquid fuel injected to the engine cylinder in response to the amount of EGR in said engine cylinder during an operator tip-out; andincreasing the fraction of liquid fuel relative to the fraction of gaseous fuel injected to the engine cylinder in response to a reduction in the amount of EGR in the engine cylinder. 9. The method of claim 8, wherein said fraction of gaseous fuel is injected directly into said engine cylinder, and where an amount of gaseous fuel injected before the operator tip-out is less than an amount of gaseous fuel injected after the operator tip-out, immediately following the operator tip-out. 10. The method of claim 8, wherein said fraction of liquid fuel is greater than said fraction of gaseous fuel before said fraction of gaseous fuel is increased. 11. The method of claim 8, wherein said fraction of liquid fuel is less than said fraction of gaseous fuel before said fraction of gaseous fuel is increased. 12. The method of claim 8, further comprising reducing a gas fraction of EGR in the engine cylinder in response to said operator tip-out. 13. The method of claim 8, wherein said gaseous fuel is comprised of at least H2, and where the fraction of gaseous fuel is increased for a duration that is responsive to a duration it takes to reduce a level of EGR in an intake manifold. 14. The method of claim 8, further comprising increasing said amount of EGR delivered to said engine cylinder when said gaseous fuel is available, and decreasing said amount of EGR delivered to said engine cylinder when a pressure of said gaseous fuel is less than a threshold amount. 15. A method for operating an engine, comprising: injecting a gaseous fuel and a liquid fuel to an engine cylinder;diluting an air-fuel mixture of the engine cylinder with EGR, an EGR amount adjusted responsive to an operator tip-out; andincreasing a fraction of gaseous fuel relative to a fraction of liquid fuel injected to the engine cylinder in response to the EGR amount of the engine cylinder. 16. The method of claim 15, wherein said gaseous fuel is comprised of vaporized alcohol and/or H2, CO, and CH4, and wherein said gaseous fuel is increased in response to the operator tip-out. 17. The method of claim 15, wherein said fraction of gaseous fuel is injected to an intake manifold. 18. The method of claim 15, wherein said fraction of gaseous fuel is injected directly into the engine cylinder. 19. The method of claim 15, wherein said fraction of liquid fuel is greater than said fraction of gaseous fuel before said fraction of gaseous fuel is increased.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (58)
Warne, David G.; Renshaw, John, Adaptive fuel injector trimming during a zero fuel condition.
Perotto Aldo,ITX ; Boni Roberto,ITX ; Bortignon Giorgio,ITX, Control system for an internal combustion engine using either gasoline or methane or LPG as a fuel.
Heywood,John; Bromberg,Leslie; Cohn,Daniel, High compression ratio, high power density homogeneous charge compression ignition engines using hydrogen and carbon monoxide to enhance auto-ignition resistance.
Glidewell John M. (Dearborn MI) Chui Granger K. (Dearborn Heights MI) Yang Woong-Chul (Ann Arbor MI), Internal combustion engine with on-board diagnostic system for detecting impaired fuel injectors.
Taylor III, William; Kramer, Dennis A.; Bauer, Shawn D., Method and apparatus for controlling a fuel reformer by use of existing vehicle control signals.
Yokota,Hidetoshi; Morinaga,Hiroshi, Method and apparatus for estimating road surface state and tire running state, ABS and vehicle control using the same.
Tarroux, Francis Rene Henri; Hauet, Bertrand; Aubourg, Alain, Method for measuring the fuel pressure in an injection train of an internal combustion engine.
Gras, Juergen; Klein, Ralf; Edelmann, Thomas, Method, computer program, and control system for operating a motor vehicle having an internal combustion engine.
Stokes Richard A. (112 E. Fourth St. ; Apt. B-1 Aberdeen WA 98520), Methods and apparatus for vaporizing and utilizing fuels of various octane ratings.
Pauli Allen J. (Macomb Township MI) Shelly Patrick J. (Framington MI) Leroux Mark D. (Allen Park MI) Melville Thomas R. (Northville MI), On-board fuel delivery diagnostic system for an internal combustion engine.
Hemberger Hans-Hubert,DEX ; Koehler Juergen,DEX, Process for determining a fuel-injection-related parameter for an internal-combustion engine with a common-rail injection system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.