IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0579354
(2004-05-07)
|
등록번호 |
US-8205450
(2012-06-26)
|
국제출원번호 |
PCT/EP2004/004900
(2004-05-07)
|
§371/§102 date |
20080827
(20080827)
|
국제공개번호 |
WO2005/108755
(2005-11-17)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Honeywell International Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
14 |
초록
▼
A method of operating a turbocharger is provided, wherein the turbocharger comprises a compressor for compressing inlet air to be supplied to an internal combustion engine and an exhaust gas turbine for driving said compressor. The turbocharger further comprises an electric motor for driving said co
A method of operating a turbocharger is provided, wherein the turbocharger comprises a compressor for compressing inlet air to be supplied to an internal combustion engine and an exhaust gas turbine for driving said compressor. The turbocharger further comprises an electric motor for driving said compressor operable by an electric supply system including an alternator and an electric energy storage device. A connection between said alternator and said electric energy storage device is disconnectable by a switch. According to the present invention, the method comprises the following steps: detecting a transient condition, wherein said internal combustion engine is required to be accelerated; supplying electric energy to said electric motor only from said electric energy storage device at the beginning of said transient condition until a predetermined state is reached; supplying electric energy to said electric motor from the electric supply system after said predetermined state is reached.
대표청구항
▼
1. A method of operating a boosting device comprising a compressor for compressing inlet air to be supplied to an internal combustion engine and an electric motor for driving said compressor operable by an electric supply system including an alternator and an electric energy storage device, wherein
1. A method of operating a boosting device comprising a compressor for compressing inlet air to be supplied to an internal combustion engine and an electric motor for driving said compressor operable by an electric supply system including an alternator and an electric energy storage device, wherein a connection between said alternator and said electric energy storage device is disconnectable, said method comprising the following steps: detecting a transient condition wherein said internal combustion engine is required to be accelerated,supplying electric energy to said electric motor only from said electric energy storage device at the beginning of said transient condition until a predetermined state is reached with said connection being disconnected,supplying electric energy to said electric motor from the electric supply system after said predetermined state is reached,monitoring a state of charge of said electric energy storage device, andreconnecting said connection when said state of charge is smaller than a predetermined state of charge. 2. A method according to claim 1, wherein said predetermined state is reached after the elapse of a predetermined time period from the beginning of the transient condition. 3. A method according to claim 2, wherein said predetermined time period is substantially 1 second. 4. A method according to claim 1, wherein a rotational speed of said internal combustion engine is detected and said predetermined state is a predetermined rotational speed of said internal combustion engine. 5. A method as in claim 1, 2, 3 or 4, wherein said alternator is driven by said internal combustion engine and generates electric energy for the electric supply system. 6. A method according to claim 1, wherein said alternator is capable of charging said electric energy storage device when said connection is enabled. 7. A method according to claim 1, wherein a power output value of said alternator is monitored and said connection is reconnected when said power output capacity of said alternator is higher than the demand of said electric motor and remaining consumer loads derived from the electric supply system. 8. A method according to claim 1, wherein said connection is connectable and disconnectable by a switch. 9. A method according to claim 1, wherein said compressor comprises a variable nozzle, wherein said nozzle is adjusted based on the state of said connection. 10. A method according to claim 1, wherein said boosting device further comprises an exhaust gas turbine for driving said compressor forming a turbocharger. 11. A method according to claim 10, wherein said exhaust gas turbine comprises a variable nozzle, wherein said nozzle is adjusted based on the state of said connection. 12. A method of operating a boosting device comprising a compressor for compressing inlet air to be supplied to an internal combustion engine and an electric motor for driving said compressor operable by an electric supply system including an alternator and an electric energy storage device, wherein a connection between said alternator and said electric energy storage device is disconnectable, said method comprising the following steps: detecting a transient condition wherein said internal combustion engine is required to be accelerated,supplying electric energy to said electric motor only from said electric energy storage device at the beginning of said transient condition until a predetermined state is reached with said connection being disconnected,supplying electric energy to said electric motor from the electric supply system after said predetermined state is reached,monitoring a power output value of said alternator, andreconnecting said connection when said power output capacity of said alternator is higher than the demand of said electric motor and remaining consumer loads derived from the electric supply system. 13. A method according to claim 12, wherein said connection is connectable and disconnectable by a switch. 14. A method according to claim 12, wherein said compressor comprises a variable nozzle, wherein said nozzle is adjusted based on the state of said connection. 15. A method according to claim 12, wherein said boosting device further comprises an exhaust gas turbine for driving said compressor forming a turbocharger and wherein said exhaust gas turbine comprises a variable nozzle, wherein said nozzle is adjusted based on the state of said connection. 16. A method of operating a boosting device comprising a compressor for compressing inlet air to be supplied to an internal combustion engine and an electric motor for driving said compressor operable by an electric supply system including an alternator and an electric energy storage device, wherein a connection between said alternator and said electric energy storage device is disconnectable, and wherein at least one of a variable nozzle of said compressor or a variable nozzle of an exhaust gas turbine of said boosting device is adjusted based on the state of said connection, said method comprising the following steps: detecting a transient condition wherein said internal combustion engine is required to be accelerated,supplying electric energy to said electric motor only from said electric energy storage device at the beginning of said transient condition until a predetermined state is reached with said connection being disconnected, andsupplying electric energy to said electric motor from the electric supply system after said predetermined state is reached. 17. A method according to claim 16, wherein said connection is connectable and disconnectable by a switch.
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