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公开(公告)号：US09250056B2
公开(公告)日：2016-02-02
申请号：US13731596
申请日：2012-12-31
发明人： Prashanth D'Souza , Vivek Venugopal Badami , Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan
摘要： A method is presented. The method includes the steps of generating rotation signals corresponding to a plurality of rotations of a rotor physically coupled to a plurality of blades, and determining peak voltages corresponding to the plurality of blades by applying time synchronous averaging technique to blade passing signals using the rotation signals, wherein the peak voltages are representative of clearances of the plurality of blades.
摘要翻译： 提出了一种方法。 该方法包括以下步骤：产生对应于物理耦合到多个叶片的转子的多个旋转的旋转信号，并且通过使用时间同步平均技术来确定与多个叶片对应的峰值电压，使用旋转信号 ，其中所述峰值电压代表所述多个叶片的间隙。
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公开(公告)号：US20140188430A1
公开(公告)日：2014-07-03
申请号：US13731596
申请日：2012-12-31
发明人： Prashanth D'Souza , Vivek Venugopal Badami , Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan
IPC分类号： G01B7/14
摘要： A method is presented. The method includes the steps of generating rotation signals corresponding to a plurality of rotations of a rotor physically coupled to a plurality of blades, and determining peak voltages corresponding to the plurality of blades by applying time synchronous averaging technique to blade passing signals using the rotation signals, wherein the peak voltages are representative of clearances of the plurality of blades.
摘要翻译： 提出了一种方法。 该方法包括以下步骤：产生对应于物理耦合到多个叶片的转子的多个旋转的旋转信号，并且通过使用时间同步平均技术来确定与多个叶片对应的峰值电压，使用旋转信号 ，其中所述峰值电压代表所述多个叶片的间隙。
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3.发明授权公开(公告)号：US10480474B2
公开(公告)日：2019-11-19
申请号：US15946956
申请日：2018-04-06
摘要： A method and system for determining remaining useful life of an in-use injector of a reciprocating engine is disclosed. The method includes determining nozzle wear relationship data for different duty cycles of the in-use injector, and using the nozzle wear relationship data together with operating parameters for the reciprocating engine, and emission relationship data to determine actual emission levels for the in-use injector based on the wear relationship data and the emission relationship data. The method and system further include determining remaining useful life of the in-use injector based on actual emission levels and the nozzle wear relationship data; and controlling an operation of the reciprocating engine based on the actual emission levels.
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公开(公告)号：US20160061805A1
公开(公告)日：2016-03-03
申请号：US14476378
申请日：2014-09-03
发明人： Rahul Srinivas Prabhu , Saratchandra Shanmukh , Venkatesh Kattigari Madyastha , Subramani Adhiachari , Sethuraman Vijay , Partho Kayal
CPC分类号： G01N33/2888 , G01N33/2817 , G01N33/30
摘要： A system includes a sensor that may measure one or more engine oil parameters to assess engine oil health of an engine and a processor communicatively coupled to the sensor and that may receive a signal from the sensor. The signal is representative of a real-time measurement of the one or more engine oil parameters. The processor may also estimate the one or more engine oil parameters over time via an adaptive predictive model associated with the one or more engine oil parameters to generate estimated data and reconcile the real-time measurement and the estimated data to generate an integrated engine oil degradation model and predict engine oil remaining useful life based on the integrated engine oil degradation model and one or more condemn limits associated with the one or more engine oil parameters.
摘要翻译： 系统包括传感器，其可以测量一个或多个发动机机油参数以评估发动机的发动机油健康状况以及通信地耦合到传感器并且可以从传感器接收信号的处理器。 该信号代表一个或多个发动机油参数的实时测量。 处理器还可以经由与一个或多个发动机油参数相关联的自适应预测模型随时间估计一个或多个发动机机油参数，以产生估计数据并调节实时测量值和估计数据以产生一体的发动机机油降解 基于一体化发动机机油降解模型和与一个或多个发动机机油参数相关联的一个或多个限制限制来模拟和预测发动机油剩余使用寿命。
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公开(公告)号：US09250153B2
公开(公告)日：2016-02-02
申请号：US13665135
申请日：2012-10-31
发明人： Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan , Prashanth D'Souza , Vivek Venugopal Badami
CPC分类号： G01M5/0083 , G01B7/14 , G01M5/0091
摘要： A system is disclosed. The system includes a processing subsystem that determines preliminary voltages corresponding to a plurality of blades based upon blade passing signals (BPS), and generates a plurality of clearance values by normalizing the preliminary voltages for effects of one or more operational parameters, wherein the plurality of clearance values are representative of clearance of the plurality of blades.
摘要翻译： 公开了一种系统。 该系统包括处理子系统，其基于叶片通过信号（BPS）确定与多个叶片相对应的初步电压，并且通过对初始电压进行归一化以产生多个间隙值以用于一个或多个操作参数的影响，其中， 间隙值代表多个叶片的间隙。
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公开(公告)号：US09714931B2
公开(公告)日：2017-07-25
申请号：US14476378
申请日：2014-09-03
发明人： Rahul Srinivas Prabhu , Saratchandra Shanmukh , Venkatesh Kattigari Madyastha , Subramani Adhiachari , Sethuraman Vijay , Partho Kayal
CPC分类号： G01N33/2888 , G01N33/2817 , G01N33/30
摘要： A system includes a sensor that may measure one or more engine oil parameters to assess engine oil health of an engine and a processor communicatively coupled to the sensor and that may receive a signal from the sensor. The signal is representative of a real-time measurement of the one or more engine oil parameters. The processor may also estimate the one or more engine oil parameters over time via an adaptive predictive model associated with the one or more engine oil parameters to generate estimated data and reconcile the real-time measurement and the estimated data to generate an integrated engine oil degradation model and predict engine oil remaining useful life based on the integrated engine oil degradation model and one or more condemn limits associated with the one or more engine oil parameters.
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公开(公告)号：US20140119889A1
公开(公告)日：2014-05-01
申请号：US13665135
申请日：2012-10-31
发明人： Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan , Prashanth D'Souza , Vivek Venugopal Badami
CPC分类号： G01M5/0083 , G01B7/14 , G01M5/0091
摘要： A system is disclosed. The system includes a processing subsystem that determines preliminary voltages corresponding to a plurality of blades based upon blade passing signals (BPS), and generates a plurality of clearance values by normalizing the preliminary voltages for effects of one or more operational parameters, wherein the plurality of clearance values are representative of clearance of the plurality of blades.
摘要翻译： 公开了一种系统。 该系统包括处理子系统，其基于叶片通过信号（BPS）确定与多个叶片相对应的初步电压，并且通过对初始电压进行归一化以产生多个间隙值以用于一个或多个操作参数的影响，其中， 间隙值代表多个叶片的间隙。
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公开(公告)号：US10260388B2
公开(公告)日：2019-04-16
申请号：US15365127
申请日：2016-11-30
发明人： Radislav Alexandrovich Potyrailo , Rahul Srinivas Prabhu , Vinay Bhaskar Jammu , Venkatesh Madyastha
摘要： A system includes one or more processors and a resonant sensor that contacts oil within an engine of a vehicle system. The sensor generates electrical stimuli at different times during an operational life of the engine. Each electrical stimulus has multiple different frequencies applied to the oil. The one or more processors receive electrical signals representing impedance responses of the oil to the electrical stimuli. The one or more processors determine a concentration of a polar analyte in the oil at the different times based on the impedance responses and calculate a degradation value for the engine based on the polar analyte concentration. Responsive to the degradation value exceeding a designated degradation threshold, the one or more processors at least one of schedule maintenance for the vehicle system, provide an alert to schedule maintenance for the vehicle system, or prohibit operation of the vehicle system until maintenance is performed.
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公开(公告)号：US20170081997A1
公开(公告)日：2017-03-23
申请号：US15365127
申请日：2016-11-30
发明人： Radislav Alexandrovich Potyrailo , Rahul Srinivas Prabhu , Vinay Bhaskar Jammu , Venkatesh Madyastha
CPC分类号： F01M11/10 , F01M11/12 , F01M2011/1406 , F01M2011/146 , F01M2011/1473 , G01N27/026 , G01N33/2835 , G01N33/2847 , G01N33/2888 , G07C5/006
摘要： A system includes one or more processors and a resonant sensor that contacts oil within an engine of a vehicle system. The sensor generates electrical stimuli at different times during an operational life of the engine. Each electrical stimulus has multiple different frequencies applied to the oil. The one or more processors receive electrical signals representing impedance responses of the oil to the electrical stimuli. The one or more processors determine a concentration of a polar analyte in the oil at the different times based on the impedance responses and calculate a degradation value for the engine based on the polar analyte concentration. Responsive to the degradation value exceeding a designated degradation threshold, the one or more processors at least one of schedule maintenance for the vehicle system, provide an alert to schedule maintenance for the vehicle system, or prohibit operation of the vehicle system until maintenance is performed.
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公开(公告)号：US20190128200A1
公开(公告)日：2019-05-02
申请号：US15797555
申请日：2017-10-30
IPC分类号： F02D41/14
CPC分类号： F02D41/1498 , F02D35/024 , F02D35/027 , F02D35/028 , F02D41/009 , F02D41/028 , F02D2041/286
摘要： A reciprocating engine system includes a cylinder, a piston disposed within the cylinder, a knock sensor disposed proximate to the cylinder and configured to detect vibrations of the cylinder, piston, or both, a crankshaft sensor configured to sense a crank angle of a crankshaft, and a controller communicatively coupled to the knock sensor and the crankshaft sensor. The controller is configured to receive a raw knock signal from the knock sensor and a crank angle signal from the crankshaft sensor corresponding to vibrations of the cylinder, piston, or both relative to the crank angle of the crankshaft, convert the raw knock signal into a digital value signal, and at least one of a crank angle for a start of combustion, a peak firing pressure, a percentage of fuel mass fraction burn, or a combination thereof, based on the digital value signal and the crank angle.
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