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公开(公告)号：US10672205B2
公开(公告)日：2020-06-02
申请号：US15830262
申请日：2017-12-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Yao Hu , Christopher H. Knieper
Abstract: A vehicle including a fluidic subsystem composed of an electric motor, a motor driver and a fluidic pump that is disposed in a fluidic circuit of the vehicle is described. A controller includes an instruction set that is executable to determine operating parameters associated with the fluidic subsystem, and determine a plurality of power efficiency parameters for the fluidic subsystem based upon the operating parameters. The power efficiency parameters include a hydraulic power efficiency, an electro-mechanical power efficiency and an electric power efficiency. The controller can determine a state of health for the fluidic subsystem based upon the power efficiency parameters, and detect a fault in the fluidic subsystem when the state of health is less than a threshold state of health. The fault can be communicated to a vehicle operator.
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公开(公告)号：US20190108694A1
公开(公告)日：2019-04-11
申请号：US15725941
申请日：2017-10-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaoyu Huang , Shengbing Jiang , Wen-Chiao Lin , Chaitanya Sankavaram , Yao Hu , Shiming Duan , Yilu Zhang , Paul E. Krajewski
IPC: G07C5/08
CPC classification number: G07C5/0816 , B60T2270/406 , B60W50/0205 , B62D5/30 , G07C5/008
Abstract: A method for use with a vehicle having one or more subsystems includes receiving vehicle health management (VHM) information via a controller indicative of a state of health of the subsystem. The VHM information is based on prior testing results of the subsystem. The method includes determining a required testing profile using the testing results, applying the testing profile to the subsystem to thereby control a state of the subsystem, and measuring a response of the subsystem to the applied testing profile. The method also includes recording additional testing results in memory of the controller that is indicative of a response of the subsystem to the applied testing profile. The vehicle includes a plurality of subsystems and a controller configured to execute the method.
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公开(公告)号：US20190106115A1
公开(公告)日：2019-04-11
申请号：US15725930
申请日：2017-10-05
Applicant: GM Global Technology Operations LLC
Inventor： Xiaoyu Huang , Wen-Chiao Lin , Shengbing Jiang , Shiming Duan , Youssef A. Ghoneim , Steven W. Holland , Yilu Zhang
IPC: B60W50/029 , G05D1/00 , B60R16/023 , B60W30/18 , B60W50/00
Abstract: A method proactively transitions performance of a functional operation from a primary subsystem to a secondary subsystem within a vehicle or other system having an electronic control unit (ECU). The method includes receiving health management information via the ECU when the primary subsystem is actively performing the functional operation within the system and the secondary subsystem operates in a standby mode, wherein the health information is indicative of a numeric state of health (SOH) of the primary subsystem. The method also includes comparing the numeric SOH to a calibrated non-zero threshold SOH, and then commanding, via the ECU, a transition of the performance of the functional operation to the secondary subsystem and placing the primary subsystem in the standby mode when the numeric SOH is less than the calibrated non-zero threshold SOH. A vehicle executes the method via the ECU.
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公开(公告)号：US20210039521A1
公开(公告)日：2021-02-11
申请号：US16535642
申请日：2019-08-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yasen Hu , Kausalya Singuru , Shiming Duan , Yao Hu , Nicholas W. Pinto , Bradley R. Frieberg
Abstract: A system and method for personalization of adjustable features of a vehicle. The system includes a processor and an actuator. The processor detectors key points of a person from a two-dimensional image and predicts a pose of the person. The processor translates a respective position of the key points from a two-dimensional coordinate system to a three-dimensional coordinate system based in part on the pose and measurements of distances between the key points. The processor determines a baseline configuration of an adjustable feature of the vehicle based in part on measurements between the key points in the three-dimensional coordinate system. The processor causes an actuator to adjust the adjustable feature to conform to the baseline configuration.
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公开(公告)号：US10857854B2
公开(公告)日：2020-12-08
申请号：US16380518
申请日：2019-04-10
Applicant: GM Global Technology Operations LLC
Inventor： Shiming Duan , Christopher H. Knieper , Calvin Wang
Abstract: A method of identifying air flow faults within a cooling system of an automobile comprises measuring the temperature of coolant entering a heat exchanger for the cooling system, measuring the temperature of coolant leaving the heat exchanger, and measuring the temperature of ambient air that is flowing into the heat exchanger, calculating Actual Delta T by subtracting the temperature of coolant leaving the heat exchanger from the temperature of coolant entering the heat exchanger, calculating Expected Delta T, wherein Expected Delta T is a pre-determined value of an expected difference between the temperature of the coolant entering the heat exchanger and the temperature of the coolant leaving the heat exchanger, calculating Effective Delta T by subtracting Expected Delta T from Actual Delta T, and identifying a fault in the air flow through the heat exchanger based on the value of Effective Delta T.
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Patent Agency Ranking
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：US20200040988A1
公开(公告)日：2020-02-06
申请号：US16052958
申请日：2018-08-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Chunhao J. Lee , Zhen Zhang , Peter P. Radecki , Xiaodong Jia
IPC: F16H61/14 , F16H45/02 , F16D48/06 , B60W10/02 , B60W10/10 , B60W30/18 , B60W50/14 , B60W10/06 , G07C5/08
Abstract: A method of, and a system for, controlling and predicting the health of a torque converter clutch control system is provided. The method includes determining, via a controller, rotational input and output speeds of the torque converter and a torque converter clutch slip. The method also includes determining, via the controller, whether a set of predetermined conditions are met for predicting the health of the torque converter clutch control system. The method includes gathering a plurality of initial features of the vehicle propulsion system, determining statistical information about the plurality of initial features, and selecting at least one feature of the vehicle propulsion system based on the statistical information. Furthermore, the method includes classifying the health of the torque converter clutch control system based on the selected feature or features. In some forms, principal component analysis is used to select the feature or features used for classification.
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公开(公告)号：US10553043B2
公开(公告)日：2020-02-04
申请号：US15446595
申请日：2017-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Chunhao J Lee , Farzad Samie
Abstract: A method of predicting the health of and controlling a hydraulic pressure actuated torque converter lock-up clutch includes determining rotational input and output speeds of the torque converter. The method also includes determining a magnitude of the hydraulic pressure. The method additionally includes determining a level of performance of the clutch across multiple torque converter operating modes using the determined input and output torque converter speeds and the determined magnitude of the hydraulic pressure. The method also includes calculating a numeric state of health (SOH) coefficient of the clutch that quantifies a relative severity of degradation of a plurality of clutch characteristics across the multiple torque converter operating modes. Furthermore, the method includes executing a control action relative to the clutch when the calculated numeric SOH coefficient for specified torque converter operating mode(s) is less than a calibrated SOH threshold.
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公开(公告)号：US20180253913A1
公开(公告)日：2018-09-06
申请号：US15446595
申请日：2017-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Chunhao J Lee , Farzad Samie
Abstract: A method of predicting the health of and controlling a hydraulic pressure actuated torque converter lock-up clutch includes determining rotational input and output speeds of the torque converter. The method also includes determining a magnitude of the hydraulic pressure. The method additionally includes determining a level of performance of the clutch across multiple torque converter operating modes using the determined input and output torque converter speeds and the determined magnitude of the hydraulic pressure. The method also includes calculating a numeric state of health (SOH) coefficient of the clutch that quantifies a relative severity of degradation of a plurality of clutch characteristics across the multiple torque converter operating modes. Furthermore, the method includes executing a control action relative to the clutch when the calculated numeric SOH coefficient for specified torque converter operating mode(s) is less than a calibrated SOH threshold.
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公开(公告)号：US10054030B2
公开(公告)日：2018-08-21
申请号：US15169814
申请日：2016-06-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shiming Duan , Christopher H. Knieper
CPC classification number: F01P5/12 , F01P3/02 , F01P7/164 , F01P7/165 , F01P2005/125 , F01P2007/146 , F01P2023/08 , F01P2025/04 , F01P2025/08 , F01P2025/64 , F01P2031/18
Abstract: An engine coolant system includes a variable-opening valve having a plurality of tubes in fluid flow communication with an engine block and a radiator. The coolant system also includes an electrically-powered pump arranged to cycle coolant through the radiator and the engine block to regulate an engine temperature. The coolant system further includes a controller programmed to store a baseline relationship between pump speed and pump power draw using a nonlinear scale. The controller is also programmed to detect a steady state operating condition of the pump, and identify an operational relationship between real-time pump speed and a pump power draw. The controller is further programmed to detect a coolant leak based on a deviation between the baseline relationship and the operational relationship.
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