Patents by Inventor Yue Yun Wang

Yue Yun Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210212873
    Abstract: A patient support apparatus includes a bed including a frame. A mattress is supported by the frame. A respiratory therapy apparatus is supported by the frame. A pneumatic system is operable to inflate at least one bladder of the mattress and operable to deliver air to the respiratory therapy apparatus.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Cong Jiang, Wei T. Tan, Siew Ying Koh, Eugene Hong Kheng Kung, Nookarajesh Varma Sangadi, Yue Yun Wang, Aye Aung, Tak Wei David Teo, Chau Chong Ye, Amodh Gundlur Ramesh, David J. Brzenchek, Jack Barney Sing, Steven V. McCaig, Chee Keong Ng
  • Patent number: 11059043
    Abstract: A microfluidic system includes a microfluidic chip including a channel layer and a fluid control layer operatively connected to the channel layer, the channel layer having one or more fluid channels. The one or more channels are configured to contain a plurality of droplets. A valve control system is provided to control flow of fluid through the one or more fluid channels in the channel layer. The microfluidic system also includes a droplet impedance detection and feedback control system operatively connected to the valve control system. The droplet impedance detection and feedback control system is configured to detect at least a position of at least one droplet in a fluid channel and to send a signal to the valve control system to operate a particular valve at a particular time based on the detected position of the at least one droplet.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: July 13, 2021
    Assignees: The Johns Hopkins University, Pioneer Hi-Bred International, Inc.
    Inventors: Tza-Huei Wang, Brant Axt, Yi-Fan Hsieh, Helena C. Zec, Aniruddha Kaushik, Kuangwen Hsieh, Yue Yun
  • Publication number: 20210146785
    Abstract: A method of using a control system to estimate range of an electrified vehicle operated by a driver includes monitoring a first set of driver behaviors while the vehicle is in operation and comparing the monitored first set of driver behaviors to a plurality of known profiles having respective stored behaviors. The method may include matching the first set of driver behaviors to at least one of the known profiles to create an adapted driver model, modeling an adapted drive cycle profile based on the matched adapted driver model, and calculating a predicted driving range based on the adapted drive cycle profile. The method may classify the monitored first set of driver behaviors as at least one of conservative, neutral, and aggressive, relative to the plurality of known profiles, and model the adapted drive cycle profile is further based on the conservative, neutral, or aggressive classification.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Jun-mo Kang, Dongxu Li, Chunhao J. Lee, Jinzhu Chen, Donald K. Grimm, David J. Brooks
  • Patent number: 11002214
    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.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: May 11, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Azeem Sarwar, Xiangxing Lu, Ibrahim Haskara, Yue-Yun Wang, Chaitanya Sankavaram
  • Publication number: 20210129706
    Abstract: Management system for a rechargeable energy storage device in an electric vehicle and corresponding method is disclosed. The rechargeable energy storage device has one or more battery packs each having a plurality of modules with one or more respective cells. A respective module management unit is embedded in each of the plurality of modules through respective microcircuits and configured to determine one or more local parameters. A supervisory controller is configured for two-way communication with the respective module management unit. The supervisory controller is configured to receive the local parameters, determine one or more global pack parameters based in part on the local parameters and transmit the global pack parameters back to the respective management unit. The supervisory controller is configured to control operation of the rechargeable energy storage device based in part on the global pack parameters and the local parameters.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Lei Hao, Brian J. Koch, Jeffrey S. Piasecki, Garrett M. Seeman
  • Publication number: 20210135461
    Abstract: A distributed battery power system having a battery pack and a battery controller. The battery pack has: a plurality of cells configured to generate a plurality of cell voltages; a voltage current temperature module electrically connected to the plurality of cells; and a plurality of isolation switch sets electrically connected between the plurality of cells. The battery controller is in communication with the voltage current temperature module, and operable to: send a status request to the voltage current temperature module; receive the plurality of cell voltages from the voltage current temperature module in response to the status request; determine if the plurality of cells includes one or more problem cells in response to the plurality of cell voltages; and perform an action in response to determining that the one or more problem cells are present to prevent damage to the one or more problem cells.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Garrett M. Seeman, Jeffrey S. Piasecki
  • Patent number: 10987264
    Abstract: A patient support apparatus includes a frame and a mattress positioned on the frame. A respiratory therapy device is coupled to the frame. The respiratory therapy device includes a blower having an inlet and an outlet, a patient interface, and a valve including a valve member that is rotatable through a first angular displacement in a first direction from a first position to a second position. The outlet of the blower is coupled to the patient interface so that positive pressure is provided to a patient's airway via the patient interface when the valve member is in the first position. The inlet of the blower is coupled to the patient interface so that negative pressure is provided to the patient's airway via the patient interface when the valve member is in the second position.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: April 27, 2021
    Assignee: HILL-ROM SERVICES PTE. LTD.
    Inventors: Cong Jiang, Wei T. Tan, Siew Ying Koh, Eugene Hong Kheng Kung, Nookarajesh Varma Sangadi, Yue Yun Wang, Aye Aung, Tak Wei David Teo, Chau Chong Ye, Amodh Gundlur Ramesh, David J. Brzenchek, Jack Barney Sing, Steven V. McCaig, Chee Keong Ng
  • Patent number: 10988049
    Abstract: Powerflow is managed using a method, e.g., in a powertrain system having a multi-pack rechargeable energy storage system (RESS) with parallel battery packs. Each pack has a corresponding maximum electrical (current or voltage) limit. The method includes predicting a corresponding terminal voltage for each pack using the corresponding maximum electrical limit. The method includes selecting a terminal voltage as a selected voltage based on a requested operating mode, including selecting a maximum of the terminal voltages when the requested operating mode is a discharging mode and a minimum of the same when the requested operating mode is a charging mode. A pack current through each pack is predicted using the selected voltage and a corresponding battery state space model. A total power capability of the RESS is predicted over a predetermined prediction horizon using the selected voltage, with the operating mode controlled over the prediction horizon via the controller.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 27, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Yue-Yun Wang, Garrett M. Seeman, Jeffrey S. Piasecki
  • Publication number: 20210115872
    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.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 22, 2021
    Inventors: Azeem SARWAR, Xiangxing Lu, Ibrahim Haskara, Yue-Yun Wang, Chaitanya Sankavaram
  • Patent number: 10954838
    Abstract: An emissions control system for a motor vehicle that includes an internal combustion engine includes a first selective catalytic reduction (SCR) device and a reductant injector, The system further includes a model-based controller that is configured to calculate a target amount of reductant to inject to maintain a predetermined ratio between an amount of NH3 and an amount of NOx at the outlet of the first SCR device, and to send a command for receipt by the reductant injector to inject the calculated amount of reductant. The model-based controller is further configured to send a command for receipt by an engine controller to influence NOx production by the engine by modifying an engine operating parameter, based on a calculated target amount of NOx at the inlet of the first SCR device.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 23, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Giuseppe Mazzara Bologna, Vincenzo Alfieri
  • Patent number: 10922906
    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.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 16, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Ibrahim Haskara, David Sun, Yusheng Zou, Shiming Duan, Chi-kuan Kao, Xiangxing Lu
  • Publication number: 20210031643
    Abstract: System and method of controlling power distribution from a charging source to an electric vehicle having a battery. The system includes a plurality of switches selectively connectable between the charging source, the battery and a thermal circuit. A controller is configured to control operation of the plurality of switches to provide multiple settings for the electric vehicle. The controller is configured to select from the multiple settings based on part on a trigger signal from a mobile application. The multiple settings include an external power mode, a charging mode, a discharging mode and a mixed charging and conditioning mode. The mixed charging and conditioning mode allows charging of the battery concurrently with thermal conditioning of at least one of the battery and a cabin of the vehicle. The mixed charging and conditioning mode enables a power split between a thermal conditioning power (PT) and a charging power (PC).
    Type: Application
    Filed: August 1, 2019
    Publication date: February 4, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, David J. Brooks, Jun-Mo Kang, Donald K. Grimm
  • Publication number: 20210036643
    Abstract: A current command module is configured to, based on a direct current (DC) bus voltage for an electric motor of the vehicle, generate a d-axis current command for the electric motor and a q-axis current command for the electric motor. A voltage command module configured to generate voltage commands based on the d-axis current command and the q-axis current command. A battery switching control module is configured to: determine a voltage operating state of a battery based on the voltage commands; compare a battery parameter to at least one of a predetermined voltage parameter and a predetermined current parameter during a dwell time when a plurality of switches of the battery are open; and generate a switch control signal to transition at least one switch of the plurality of switches to cause the battery to operate in the voltage operating state based on the comparison.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 4, 2021
    Inventors: Yue-Yun WANG, Lei HAO, Alireza FATEMI, Thomas W. NEHL, Chandra S. NAMUDURI
  • Publication number: 20200391721
    Abstract: Presented are model predictive control (MPC) systems, methods, and devices for regulating operation of hybrid powertrains. A method of controlling a hybrid powertrain includes a controller determining path plan data, including a vehicle origin, destination, and predicted path. Based on this path plan data, the controller estimates vehicle velocities for multiple rolling road segments of the predicted path and, based on the estimated velocities, determines an estimated power request—transmission input torque and/or vehicle axle torque—for each road segment. The controller calculates a minimum cost function such that total fuel consumption to generate the engine power output is minimized. Minimizing the cost function is subject to battery pack current limits and state of charge (SOC) terminal costs at the ends of the rolling road segments. Command signals are sent to the engine and motor to output engine and motor torque based on the calculated minimum cost function.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 17, 2020
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Ohio State Innovation Foundation
    Inventors: Yue-Yun Wang, Yuxing Liu, Marcello Canova
  • Patent number: 10859159
    Abstract: A control system to control slip of a torque converter clutch includes a clutch plant model configured to predict a value of a parameter that relates to torque converter clutch slip as a function of clutch plant model inputs comprising commanded clutch pressure and of torque from the torque generative device. The control system also includes a model predictive controller configured to receive signals that allow determination of a desired value of the parameter that relates to torque converter clutch slip and a predicted value of the parameter that relates to torque converter clutch slip, receive a signal representing reported torque of the torque generative device, identify an optimal commanded clutch pressure value that will result in an optimal value of an objective function based on the clutch plant model, and provide a command signal to an actuator effective to control commanded clutch pressure to the torque converter clutch.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: December 8, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jose C. Zavala Jurado, Gionata Cimini, Bryan P. Jagielo, Zhen Zhang, Yue-Yun Wang, Harinath Atmaram
  • Publication number: 20200376968
    Abstract: Powerflow of a rechargeable energy storage system (RESS) is managed according to a method. The RESS has series-connected first and second battery elements with different characteristics. Each element, e.g., a pack, has a corresponding maximum or minimum voltage or current limit. Currents are predicted for each of the first and second battery elements via a controller using a corresponding voltage limit. A requested operating mode of the RESS is used to select a current for the elements. A voltage across the elements is predicted using the selected current and a corresponding battery state space model. The method predicts a total power capability of the RESS over a prediction horizon using the selected current to generate predicted power capability values. The requested operating mode is controlled over the horizon using the power capability values. A powertrain system includes the RESS, an inverter, an electric machine, and the controller.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 3, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Garrett M. Seeman, Jeffrey S. Piasecki
  • Patent number: 10854933
    Abstract: Presented are battery pack voltage-switching (“V-switch”) systems, methods for making/operating such systems, and multi-pack, electric-drive motor vehicles with battery pack V-switch capabilities. A method for controlling operation of a vehicle includes a vehicle controller receiving a voltage switch signal to change a voltage output of the vehicle's battery system. The vehicle controller determines if a speed of a traction motor is less than a calibrated base speed; if so, the controller transmits a pack isolation signal to a power inverter to electrically disconnect the traction battery packs from the traction motor. The vehicle controller determines if a bus current of a DC bus is less than a calibrated bus current threshold; if so, the controller transmits an open signal to open one or more pack contactor switches and a close signal to close one or more pack contactor switches thereby causing the vehicle battery system to output the second voltage.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 1, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Yue-Yun Wang, Chandra S. Namuduri, Suresh Gopalakrishnan, Thomas W. Nehl, Dongxu Li
  • Publication number: 20200361340
    Abstract: Powerflow is managed using a method, e.g., in a powertrain system having a multi-pack rechargeable energy storage system (RESS) with parallel battery packs. Each pack has a corresponding maximum electrical (current or voltage) limit. The method includes predicting a corresponding terminal voltage for each pack using the corresponding maximum electrical limit. The method includes selecting a terminal voltage as a selected voltage based on a requested operating mode, including selecting a maximum of the terminal voltages when the requested operating mode is a discharging mode and a minimum of the same when the requested operating mode is a charging mode. A pack current through each pack is predicted using the selected voltage and a corresponding battery state space model. A total power capability of the RESS is predicted over a predetermined prediction horizon using the selected voltage, with the operating mode controlled over the prediction horizon via the controller.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 19, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Garrett M. Seeman, Jeffrey S. Piasecki
  • Publication number: 20200312056
    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.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 1, 2020
    Inventors: Yue-Yun Wang, Ibrahim Haskara, David Sun, Yusheng Zou, Shiming Duan, Chi-kuan Kao, Xiangxing Lu
  • Patent number: 10759298
    Abstract: Presented are intelligent vehicle systems and control logic for predictive charge planning and powertrain control of electric-drive vehicles, methods for manufacturing/operating such systems, and electric-drive vehicles with smart charge planning and powertrain control capabilities. Systems and methods of AI-based predictive charge planning for smart electric vehicles use machine-learning (ML) driver models that draws on available traffic, location, and roadway map information to estimate vehicle speed and propulsion torque requirements to derive a total energy consumption for a given trip. Systems and methods of AI-based predictive powertrain control for smart hybrid vehicles use ML driver models with deep learning techniques to derive a drive cycle profile defined by a preview route with available traffic, geopositional, geospatial, and map data.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 1, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Yue-Yun Wang, Junfeng Zhao, Suresh Gopalakrishnan, Yiran Hu, Norman K. Bucknor