Methods and systems for diagnosing a turbocharger
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01M-013/00
F02B-039/14
F02D-041/00
F02D-041/22
F02B-039/00
F02D-041/28
출원번호
US-0488530
(2012-06-05)
등록번호
US-8850878
(2014-10-07)
발명자
/ 주소
Flynn, Paul Lloyd
Worden, Bret Dwayne
Malone, Matthew John
Karunaratne, Milan
출원인 / 주소
General Electric Company
인용정보
피인용 횟수 :
1인용 특허 :
7
초록▼
Various methods and systems are provided for a turbocharger. In one example, a method includes receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine. The method further includes determining whether a high frequency component of the
Various methods and systems are provided for a turbocharger. In one example, a method includes receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine. The method further includes determining whether a high frequency component of the signal meets one or more designated criteria, and, if the high frequency component of the pressure meets the one or more designated criteria, generating a first control signal.
대표청구항▼
1. A method, comprising: receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine;determining whether a high frequency component of the signal meets one or more designated criteria;and, if the high frequency component of the pressure m
1. A method, comprising: receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine;determining whether a high frequency component of the signal meets one or more designated criteria;and, if the high frequency component of the pressure meets the one or more designated criteria, generating a first control signal, the first control signal indicating an operator alert relating to a predicted health of the turbocharger. 2. The method of claim 1, wherein the predicted health includes destructive turbocharger shaft motion and progressive bearing failure. 3. The method of claim 1, wherein the predicted health includes a safe life expectancy of the turbocharger. 4. A method, comprising: receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine;determining whether a high frequency component of the signal meets one or more designated criteria;generating a first control signal if the high frequency component of the pressure meets the one or more designated criteria;monitoring a baseline component of the signal; andgenerating a second control signal if a magnitude of a change in the baseline component is more than a threshold amount. 5. The method of claim 4, wherein the baseline component of the signal is a steady state pressure of the pressurized oil supply. 6. The method of claim 4, wherein the second control signal indicates degradation of the turbocharger. 7. A method, comprising: receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine;determining whether a high frequency component of the signal meets one or more designated criteria;generating a first control signal if the high frequency component of the pressure meets the one or more designated criteria, the high frequency component including a frequency in a range indicative of bearing wear. 8. A method, comprising: receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine;conducting a first assessment of a high frequency component of the signal, the first assessment comprising determining if the high frequency component of the signal meets one or more designated criteria;conducting a second assessment of a baseline component of the signal, the second assessment comprising determining if a magnitude of change in the baseline component of the signal is more than a threshold amount; andbased on the first and second assessments, generating a control signal indicative of a predicted operational state of the turbocharger. 9. The method of claim 8, further comprising indicating degradation of the turbocharger when the magnitude of change in the baseline component of the signal increases more than the threshold amount. 10. The method of claim 8, wherein the high frequency component has a higher frequency than the baseline by at least a threshold. 11. The method of claim 8, wherein the one or more designated criteria includes the high frequency component of the signal greater than a threshold frequency. 12. The method of claim 11, further comprising indicating degradation of the turbocharger when the high frequency component of the signal is greater than the threshold frequency. 13. A method, comprising: receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine;conducting a first assessment of a high frequency component of the signal;conducting a second assessment of a baseline component of the signal;storing data of the baseline component of the signal over time; andbased on the first and second assessments, generating a control signal indicative of a predicted operational state of the turbocharger, the second assessment including comparing a current value of the baseline component to the stored data. 14. A system, comprising: a turbocharger with a compressor and a turbine coupled together via a shaft, the turbocharger coupled to an engine in a vehicle;a pressure sensor configured to generate a signal indicative of a monitored pressure which includes a frequency component and a baseline component, the pressure sensor disposed in a pressurized oil supply of the turbocharger; anda control module configured to receive the signal from the pressure sensor, conduct a first assessment of the frequency component, conduct a second assessment of the baseline component, and, based on the first and second assessments, output a control signal indicative of a predicted operational state of the turbocharger including destructive turbocharger shaft motion. 15. A system, comprising: a turbocharger with a compressor and a turbine, the turbocharger coupled to an engine in a vehicle;a pressure sensor configured to generate a signal indicative of a monitored pressure which includes a frequency component and a baseline component, the pressure sensor disposed in a pressurized oil supply of the turbocharger; anda control module configured to: receive the signal from the pressure sensor;conduct a first assessment of the frequency component;conduct a second assessment of the baseline component;based on the first and second assessments, output a control signal;store data of the baseline component of the signal over time; compare a current value of the baseline component to the stored data during the second assessment; and indicate degradation of the turbocharger when the current value is less than the stored data by at least a threshold.
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이 특허에 인용된 특허 (7)
Ueberschär, Dietmar; Schulmeyer, Dieter, Arrangement and method for determining the oil consumption of an oil-lubricated machine.
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