System and method for operation of an engine having multiple combustion modes and cylinder deactivation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-017/02
F02D-017/00
F02B-017/00
F02D-007/00
출원번호
US-0370071
(2006-03-06)
등록번호
US-7469672
(2008-12-30)
발명자
/ 주소
Andri,Michael
출원인 / 주소
Ford Global Technologies, LLC
대리인 / 주소
Lippa,Allan J.
인용정보
피인용 횟수 :
11인용 특허 :
17
초록▼
A method of operating an engine having a plurality of combustion cylinders configured to produce an engine output, including adjusting a condition of the engine to achieve combustion by each of spark ignition and homogeneous charge compression ignition, and varying the engine output by at least vary
A method of operating an engine having a plurality of combustion cylinders configured to produce an engine output, including adjusting a condition of the engine to achieve combustion by each of spark ignition and homogeneous charge compression ignition, and varying the engine output by at least varying a number of cylinders carrying out combustion.
대표청구항▼
What is claimed is: 1. A vehicle propulsion system producing a wheel output, comprising: an engine configured to produce at least a first portion of the wheel output, the engine having a plurality of combustion cylinders, wherein at least one of the combustion cylinders is configured to operate in
What is claimed is: 1. A vehicle propulsion system producing a wheel output, comprising: an engine configured to produce at least a first portion of the wheel output, the engine having a plurality of combustion cylinders, wherein at least one of the combustion cylinders is configured to operate in a spark ignition mode, at least one of the combustion cylinders is configured to operate in a homogeneous charge compression ignition mode, and at least one of the combustion cylinders is configured to be deactivated; and a controller configured to selectively operate at least one of the combustion cylinders in one of the spark ignition mode and the homogeneous charge compression ignition mode, wherein the controller is further configured to selectively vary a number of deactivated combustion cylinders. 2. The vehicle propulsion system of claim 1, further comprising a motor configured to supply at least a second portion of the wheel output; and an energy conversion device configured to absorb at least a third portion of the wheel output, where said one cylinder configured to operate in a homogeneous charge compression ignition mode is the same cylinder configured to be deactivated. 3. The vehicle propulsion system of claim 2, wherein the controller is further configured to reduce torque fluctuations in the first portion of the wheel output produced by the engine by adjusting at least one of the second portion of the wheel output produced by the motor and the third portion of the wheel output absorbed by the generator. 4. The vehicle propulsion system of claim 1, wherein the controller is further configured to: during a first condition, increase the number of deactivated combustion cylinders; and during a second condition, decrease the number of deactivated combustion cylinders. 5. The vehicle propulsion system of claim 1, wherein the controller is further configured to selectively transition at least one of the combustion cylinders between the homogeneous charge compression ignition mode and the spark ignition mode. 6. The vehicle propulsion system of claim 5, wherein the controller is further configured to operate at least one of the combustion cylinders in the spark ignition mode at a higher engine output and operate at least one of the combustion cylinders in the homogeneous charge compression ignition mode at a lower engine output. 7. A method of operating an engine having a plurality of combustion cylinders configured to produce an engine output, comprising: adjusting a condition of the engine to achieve combustion by each of spark ignition and homogeneous charge compression ignition; and varying the engine output by at least varying a number of cylinders carrying out combustion. 8. The method of claim 7, wherein homogeneous charge compression ignition is achieved during a first condition and spark ignition is achieved during a second condition. 9. The method of claim 7, wherein at least one cylinder of the plurality of cylinders is configured to achieve combustion by homogeneous charge compression ignition during a first condition and said at least one cylinder of the plurality of cylinders is configured to achieve combustion by spark ignition during a second condition. 10. The method of claim 1, wherein at least a first cylinder of the plurality of cylinders is configured to achieve combustion by homogeneous charge compression ignition and at least a second cylinder of the plurality of cylinders is configured to achieve combustion by spark ignition. 11. The method of claim 1, wherein said varying a number of cylinders carrying out combustion includes at least one of activating at least one cylinder and deactivating at least one cylinder. 12. The method of claim 11, wherein said number of cylinders carrying out combustion is increased when engine output is increased by the activation of at least one deactivated cylinder. 13. The method of claim 12, wherein said activation of at least one deactivated cylinder is activated by performing spark ignition to achieve combustion. 14. A method for operating an engine having a plurality of combustion cylinders configured to produce an engine output, wherein each cylinder can operate in one of a spark ignition mode and a homogeneous charge compression ignition combustion mode, the method, comprising: deactivating at least one cylinder to decrease the engine output where at least one cylinder is operating in the homogeneous charge compression ignition mode; and activating at least one cylinder to increase the engine output where at least one cylinder is operating in the homogeneous charge compression ignition mode. 15. The method of claim 14, further comprising operating a generator to absorb at least a portion of the engine output and operating a motor to produce a motor output. 16. The method of claim 14, further comprising transitioning at least one cylinder from the homogeneous charge compression ignition mode to the spark ignition mode. 17. The method of claim 14, wherein said activating at least one cylinder includes activating said at least one cylinder in the spark ignition mode and wherein said deactivating at least one cylinder includes deactivating said at least one cylinder operating in the spark ignition mode. 18. A method for controlling a vehicle propulsion system having an engine configured to produce an engine torque configured to propel at least a drive wheel, wherein the engine includes a plurality of cylinders; a motor configured to selectively supply a motor torque to at least said drive wheel; and a generator coupled to the engine, wherein the generator is configured to selectively absorb at least said engine torque, the method, comprising: during vehicle propulsion system operation, selectively varying at least each of: a number of cylinders carrying out combustion; a combustion mode of at least one cylinder carrying out combustion between at least a spark ignition combustion mode and a homogeneous charge compression ignition combustion mode; a motor torque supplied by the motor; and an engine torque absorbed by the generator. 19. The method of claim 18, wherein the torque supplied by the motor is varied when the ratio of the number of cylinders carrying out combustion in the spark ignition mode compared to the number of cylinders carrying out combustion in the homogeneous charge compression ignition mode is varied. 20. The method of claim 18, wherein the torque absorbed by the generator is varied when the ratio of the number of cylinders carrying out combustion in the spark ignition mode compared to the number of cylinders carrying out combustion in the homogeneous charge compression ignition mode is varied. 21. The method of claim 18, wherein a condition of at least one of the motor and the generator is varied as the number of cylinders carrying out combustion in the homogeneous charge compression ignition combustion mode is varied.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (17)
Yang Jialin, Air-fuel charge controller for a homogeneous-charge, compression-ignition engine.
Shiraishi, Takuya; Nogi, Toshiharu; Oosuga, Minoru; Sukegawa, Yoshihiro, Hybrid vehicle driven by composit torque generated by an internal-combustion engine and an electric motor, and method of operating same.
Kurtz, Eric Matthew; Yang, Jialin; Xu, Lifeng; Baker, Richard Eugene, Method and system for controlling combustion mode in an internal combustion engine.
Flynn Patrick F. ; Hunter Gary L. ; zur Loye Axel O. ; Akinyemi Omowoleola C. ; Durrett Russ P. ; Moore Greg A. ; Muntean George G. ; Peters Lester L. ; Pierz Patrick M. ; Wagner Julie A. ; Wright Jo, Premixed charge compression ignition engine with optimal combustion control.
Falkenstein, Jens-Werner; Hellmann, Manfred; Kustosch, Mario, Method for operating a vehicle having a hybrid drive system as well as a drive system and a vehicle.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.