Supercharger with continuously variable drive system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-009/08
F02B-033/00
F02M-025/07
F02D-041/00
F02D-023/00
F02B-039/04
출원번호
US-0154429
(2014-01-14)
등록번호
US-8910614
(2014-12-16)
발명자
/ 주소
Bevan, Karen E.
Ouwenga, Daniel Robert
출원인 / 주소
Eaton Corporation
대리인 / 주소
Mei & Mark LLP
인용정보
피인용 횟수 :
0인용 특허 :
25
초록▼
A combustion system comprises a supercharger with an operating range from an idled condition up to a maximum rotations per minute (RPM) of its drive shaft. An engine in the system has an engine operating range from an idled condition up to a maximum RPM of its crank shaft, the engine having at least
A combustion system comprises a supercharger with an operating range from an idled condition up to a maximum rotations per minute (RPM) of its drive shaft. An engine in the system has an engine operating range from an idled condition up to a maximum RPM of its crank shaft, the engine having at least one airflow demand for each RPM in the engine operating range for providing peak torque output. A continuously variable transmission (CVT) is connected to the drive shaft for transmitting a variable amount of rotational energy to operate the supercharger. The control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM in the engine operating range such that the supercharger variably pumps air across the operating range as the engine operates across the engine operating range.
대표청구항▼
1. A combustion system comprising: a control system comprising a processor, a memory, an algorithm stored in the memory, and control electronics;a supercharger comprising an air inlet, an air outlet, and a drive shaft, the supercharger configured to move air from the air inlet to the air outlet, the
1. A combustion system comprising: a control system comprising a processor, a memory, an algorithm stored in the memory, and control electronics;a supercharger comprising an air inlet, an air outlet, and a drive shaft, the supercharger configured to move air from the air inlet to the air outlet, the supercharger having an operating range from an idled condition up to a maximum rotations per minute (RPM) of the drive shaft;an engine comprising combustion chambers configured to receive air from the outlet of the supercharger, the engine further comprising an associated crank shaft, the engine having an engine operating range from an idled condition up to a maximum RPM of the crank shaft, the engine having at least one airflow demand for each RPM in the engine operating range for providing peak torque output; anda continuously variable transmission (CVT) connected to the control system and further connected to the drive shaft for transmitting a variable amount of rotational energy to operate the supercharger,wherein the control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM in the engine operating range such that the supercharger variably pumps air across the operating range as the engine operates across the engine operating range. 2. The combustion system of claim 1, wherein, at any given RPM of the crank shaft, the control system controls the transmitting of the CVT to operate the supercharger at its maximum RPM. 3. The combustion system of claim 1, wherein the supercharger is a centrifugal supercharger comprising an impeller, and wherein the impeller is operatively coupled to the drive shaft. 4. The combustion system of claim 1, wherein the supercharger is a positive displacement pump comprising rotors, and wherein the drive shaft is operatively coupled to the rotors. 5. The combustion system of claim 1, wherein the supercharger is sized to displace a volume of air (VS), wherein the engine is sized to displace a volume of fluid (VE), and wherein VS is in the range of 60%-10% of VE. 6. The combustion system of claim 5, wherein VS is in the range 0.06 Liters to 4.8 Liters, and VE is in the range 0.6 Liters to 8 Liters. 7. The combustion system of claim 5, wherein VS is in the range 0.8 Liters to 9.6 Liters, and VE is in the range 8.0 Liters to 16 Liters. 8. The combustion system of claim 1, wherein the supercharger is sized to displace a volume of air (VS), wherein the engine is sized to displace a volume of fluid (VE), and wherein VS is in the range of 25%-10% of VE. 9. The combustion system of claim 1, wherein, for a sensed operating condition, the control system comprises a calculated peak torque output for the engine and a sensed actual torque output for the engine, and wherein the control system controls the transmitting of the CVT to operate the supercharger to boost the engine to achieve the calculated peak torque output as the actual torque output. 10. The combustion system of claim 9, wherein the engine achieves the calculated peak torque output as the actual torque output when the engine is operating in a range of 15%-90% of the engine maximum rotations per minute. 11. The combustion system of claim 1, wherein the control system controls the transmitting of the CVT such that no bypass valve is needed. 12. The combustion system of claim 1, wherein the control system controls the transmitting of the CVT to operate the supercharger such that each of the at least one airflow demands of each engine operating range RPM is met using air moved by the supercharger without an oversupply or undersupply of air to the combustion chambers. 13. The combustion system of claim 1, wherein the control system controls the transmitting of the CVT based on the at least one airflow demand for each RPM of the engine operating range such that the supercharger variably pumps air across the entire operating range as the engine operates across the entire engine operating range. 14. The combustion system of claim 1, wherein, when the combustion system is operating at a first RPM in the engine operating range, the control system receives operating condition inputs to calculate the at least one airflow demand, and wherein the control system controls the transmitting of the CVT such that the supercharger satisfies the at least one airflow demand. 15. The combustion system of claim 14, wherein the at least one airflow demand varies for each RPM in the engine operating range based on the operating condition inputs such that, as the operating condition inputs vary, the at least one airflow demand varies. 16. The combustion system of claim 1, wherein, when the combustion system is operating at a first RPM in the engine operating range, the control system receives operating condition inputs to calculate the at least one airflow demand, wherein, as the operating condition inputs vary, the at least one airflow demand for the first RPM in the engine operating range varies, and wherein the control system controls the transmitting of the CVT such that the supercharger satisfies the at least one airflow demand. 17. A combustion system comprising: a control system comprising a processor, a memory, an algorithm stored in the memory, and control electronics;a supercharger comprising an air inlet, an air outlet, and a drive shaft, the supercharger configured to move air from the air inlet to the air outlet, the supercharger having an operating range from an idled condition up to a maximum rotations per minute (RPM) of the drive shaft;an engine comprising combustion chambers configured to receive air from the outlet of the supercharger, the engine further comprising an associated crank shaft, the engine having an engine operating range from an idled condition up to a maximum RPM of the crank shaft, the engine having a plurality of airflow demands for each RPM in the engine operating range for providing peak torque output; anda continuously variable transmission (CVT) connected to the control system and further connected to the drive shaft for transmitting a variable amount of rotational energy to the supercharger,wherein, for a selected drive shaft RPM, the control system selects one of the plurality of airflow demands based on received operating conditions and controls the transmitting of the CVT to provide rotational energy to the supercharger to move a quantity of air meeting the selected one of the plurality of airflow demands. 18. A computer program product comprising a tangible storage medium and a program stored on the storage medium, the program, when executed by a processor connected to a vehicle control system, for performing a method comprising: receiving sensor data indicating operating conditions of a vehicle;receiving engine data indicating a rotations per minute (RPM) of a crank shaft of an engine of the vehicle;processing the received sensor data and the received engine data to determine a control signal for controlling a continuously variable transmission (CVT) of the vehicle;transmitting the control signal to the CVT, the CVT connected to a drive shaft of a supercharger, the supercharger connected to move air to the engine such that the moved air equals engine airflow demand for outputting peak torque in response to the operating conditions; andadjusting the transmitted control signal as the received sensor data varies such that a crank shaft RPM corresponds to a plurality of different control signals to satisfy airflow demands based on variations in the operating conditions. 19. The computer program product of claim 18, wherein the CVT is connected between the crank shaft of the engine and the drive shaft of the supercharger, and wherein the method further comprises, transferring, based on the rotations per minute of the crank shaft, rotational energy from the crank shaft to the drive shaft. 20. The computer program product of claim 18, wherein the method further comprises adjusting the control signal to avoid the use of a bypass valve. 21. The computer program product of claim 18, wherein the method further comprises adjusting the transmitted control signal to operate the supercharger across an operating range from an idled condition up to a maximum RPM of the drive shaft while the engine operates across an engine operating range from an idled condition up to a maximum RPM of the crank shaft.
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이 특허에 인용된 특허 (25)
Muto Harufumi,JPX ; Fujita Makoto,JPX ; Kushi Naoto,JPX, Air-fuel ratio control apparatus of internal combustion engine and control method for the same.
Ohyama Yoshishige,JPX ; Fujieda Mamoru,JPX ; Nogi Toshiharu ; Shiraishi Takuya,JPX ; Ohsuga Minoru,JPX, Control apparatus for drive system composed of engine and transmission.
Hardy James A. (Playa del Rey CA) Alfano David L. (Redondo Beach CA), Internal combustion engine having a variably engagable slipping wet clutch for driving a supercharger.
Regar Karl-Nikolaus (Rebhuhnweg 3 8000 Mnchen 60 DEX), Method of operating an internal combustion engine and an internal combustion engine designed for carrying out this metho.
Regar Karl-Nikolaus (Rebhuhnweg 3 8000 Mchen 60 DEX), Method of operation an internal combustion engine and an internal combustion engine designed for carrying out this metho.
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