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公开(公告)号：US20190285007A1
公开(公告)日：2019-09-19
申请号：US15923363
申请日：2018-03-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Azeem Sarwar , Syed B. Mehdi , Xiangxing Lu , Bryan K. Pryor , Shanshan L. Peer
Abstract: A method and system of diagnosing a lubrication system of an engine includes determining a lubrication system fault and controlling an engine in response to the fault. The method is operative to first determine a poor state of health for a lubrication system, then determine an oil degradation or lube system fault. In response to a lube system fault, engine operation is altered in order to reduce the negative effects of the lube system fault such as increasing minimum idle speed in response to reduced oil pressure.
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公开(公告)号：US10919408B2
公开(公告)日：2021-02-16
申请号：US16214813
申请日：2018-12-10
Applicant: GM Global Technology Operations LLC
Inventor： Azeem Sarwar , Xiangxing Lu , Ciro Spigno , Ryan B. Moulliet , Jeffrey S. Piasecki , Andrew J. Cornelli , Charles W. Wampler, II , Brian J. Koch , Margaux LeBlanc , Gus Hatoum
IPC: B60L58/10 , H01M10/00 , H02J7/00 , G01R31/382 , G01R31/396 , G01R31/36 , H01M10/48
Abstract: System and method of controlling operation of a device having a rechargeable energy storage pack with a plurality of cells, based on propulsion loss assessment. A controller is configured to obtain a state of charge data and an open circuit voltage of the rechargeable energy storage pack. The controller is configured to obtain a state of charge disparity factor (dSOC) from a selected dataset. The state of charge disparity factor (dSOC) is defined as a difference between a minimum value of the state of charge and an average value of the state of charge of the plurality of cells. The controller is configured to control operation of the device based in part on the state of charge disparity factor (dSOC) and a plurality of parameters (Pi), including raising one or more of a plurality of flags each transmitting respective information to a user.
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公开(公告)号：US20200312056A1
公开(公告)日：2020-10-01
申请号：US16367827
申请日：2019-03-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yue-Yun Wang , Ibrahim Haskara , David Sun , Yusheng Zou , Shiming Duan , Chi-kuan Kao , Xiangxing Lu
Abstract: A system for monitoring operation of a vehicle includes a processing device including an interface configured to receive measurement data from sensing devices configured to measure parameters of a vehicle system. The processing device is configured to receive measurement data from each of the plurality of sensing devices, and in response to detection of a malfunction in the vehicle, input at least a subset of the measurement data to a machine learning classifier associated with a vehicle subsystem, the classifier configured to define a class associated with normal operation of the vehicle subsystem. The processing device is also configured to determine whether the subset of the measurement data belongs to the class, and based on at least a selected amount of the subset of the measurement data being outside of the class, output a fault indication, the fault indication identifying the vehicle subsystem as having a contribution to the malfunction.
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公开(公告)号：US11002214B1
公开(公告)日：2021-05-11
申请号：US16656949
申请日：2019-10-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Azeem Sarwar , Xiangxing Lu , Ibrahim Haskara , Yue-Yun Wang , Chaitanya Sankavaram
Abstract: A diagnostic system for a fuel injector includes a plurality of sensors to sense vehicle data. A controller includes a fuel injector diagnostic module configured to receive the vehicle data during operation of the vehicle and to selectively identify at least one of a fuel injector with a stuck armature and a fuel injector with pintle fatigue.
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公开(公告)号：US20210115872A1
公开(公告)日：2021-04-22
申请号：US16656949
申请日：2019-10-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Azeem SARWAR , Xiangxing Lu , Ibrahim Haskara , Yue-Yun Wang , Chaitanya Sankavaram
Abstract: A diagnostic system for a fuel injector includes a plurality of sensors to sense vehicle data. A controller includes a fuel injector diagnostic module configured to receive the vehicle data during operation of the vehicle and to selectively identify at least one of a fuel injector with a stuck armature and a fuel injector with pintle fatigue.
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Patent Agency Ranking
公开(公告)号：US10922906B2
公开(公告)日：2021-02-16
申请号：US16367827
申请日：2019-03-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yue-Yun Wang , Ibrahim Haskara , David Sun , Yusheng Zou , Shiming Duan , Chi-kuan Kao , Xiangxing Lu
Abstract: A system for monitoring operation of a vehicle includes a processing device including an interface configured to receive measurement data from sensing devices configured to measure parameters of a vehicle system. The processing device is configured to receive measurement data from each of the plurality of sensing devices, and in response to detection of a malfunction in the vehicle, input at least a subset of the measurement data to a machine learning classifier associated with a vehicle subsystem, the classifier configured to define a class associated with normal operation of the vehicle subsystem. The processing device is also configured to determine whether the subset of the measurement data belongs to the class, and based on at least a selected amount of the subset of the measurement data being outside of the class, output a fault indication, the fault indication identifying the vehicle subsystem as having a contribution to the malfunction.
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公开(公告)号：US10480425B2
公开(公告)日：2019-11-19
申请号：US15923363
申请日：2018-03-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Azeem Sarwar , Syed B. Mehdi , Xiangxing Lu , Bryan K. Pryor , Shanshan L. Peer
Abstract: A method and system of diagnosing a lubrication system of an engine includes determining a lubrication system fault and controlling an engine in response to the fault. The method is operative to first determine a poor state of health for a lubrication system, then determine an oil degradation or lube system fault. In response to a lube system fault, engine operation is altered in order to reduce the negative effects of the lube system fault such as increasing minimum idle speed in response to reduced oil pressure.
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公开(公告)号：US20190040775A1
公开(公告)日：2019-02-07
申请号：US15668756
申请日：2017-08-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Azeem Sarwar , Syed B. Mehdi , Xiangxing Lu , Bryan K. Pryor , Shanshan L. Peer
CPC classification number: F01M11/10 , F01M1/02 , F01M1/16 , F01M2011/142 , F01M2011/1446
Abstract: A method of diagnosing a lubrication system of an engine includes controlling an oil pump with a control signal. The control signal is a command having a value for a desired lubrication fluid pressure from the oil pump for a current operating state of the engine. A processing unit compares the value of the control signal for the current operating state of the engine to a threshold control value for the current operating state of the engine. When the processing unit determines that the value of the control signal for the current operating state of the engine deviates from the threshold control value for the current operating state of the engine, the processing unit analyzes the value of the control signal to identify a fault in the lubrication system.
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公开(公告)号：US11170585B2
公开(公告)日：2021-11-09
申请号：US16443383
申请日：2019-06-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chaitanya Sankavaram , Dnyanesh G. Rajpathak , Azeem Sarwar , Xiangxing Lu , Dean G. Sorrell , Layne K. Wiggins
Abstract: A system and method of performing fault diagnosis and analysis for one or more vehicles. The method includes: obtaining design failure mode and effect analysis (DFMEA) data that specifies a plurality of failure modes; receiving diagnostic association data; receiving vehicle operation signals association data; generating augmented DFMEA data that indicates a causal relationship between the diagnostic data and the first set of failure modes, and that indicates a causal relationship between the vehicle operation signals data and the second set of failure modes, wherein the augmented DFMEA data is generated based on the DFMEA data, the diagnostic association data, and the vehicle operation signals association data; and performing fault diagnosis and analysis for the one or more vehicles using the augmented DFMEA data.
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10.发明申请公开(公告)号：US20200180466A1
公开(公告)日：2020-06-11
申请号：US16214813
申请日：2018-12-10
Applicant: GM Global Technology Operations LLC
Inventor： Azeem Sarwar , Xiangxing Lu , Ciro Spigno , Ryan B. Moulliet , Jeffrey S. Piasecki , Andrew J. Cornelli , Charles W. Wampler, II , Brian J. Koch , Margaux LeBlanc , Gus Hatoum
IPC: B60L58/10 , G01R31/396 , G01R31/382 , H01M10/48 , G01R31/36
Abstract: System and method of controlling operation of a device having a rechargeable energy storage pack with a plurality of cells, based on propulsion loss assessment. A controller is configured to obtain a state of charge data and an open circuit voltage of the rechargeable energy storage pack. The controller is configured to obtain a state of charge disparity factor (dSOC) from a selected dataset. The state of charge disparity factor (dSOC) is defined as a difference between a minimum value of the state of charge and an average value of the state of charge of the plurality of cells. The controller is configured to control operation of the device based in part on the state of charge disparity factor (dSOC) and a plurality of parameters (Pi), including raising one or more of a plurality of flags each transmitting respective information to a user.
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