Patents by Inventor Xuefei HU

Xuefei HU 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).

  • Patent number: 11704942
    Abstract: A system may comprise a device. The device may be configured to receive, from one or more sensor devices of the machine, sensor data associated with wear of one or more components of an undercarriage of the machine; and predict, using a machine learning model and the sensor data, an amount wear of the one or more components based on a wear rate of the one or more components. The machine learning model is trained, using training data, to predict the wear rate of the one or more components. The training data includes two or more of: historical sensor data, historical inspection data, or simulation data, of a simulation model, from one or more third devices. The device may perform an action based on the amount of wear.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: July 18, 2023
    Assignee: Caterpillar Inc.
    Inventors: Li Zhang, Eric J. Johannsen, Yanchai Zhang, Xuefei Hu, Daniel W. Hoyt
  • Publication number: 20230168641
    Abstract: An electronic control module (ECM) on-board a machine executes a reduced-order model configured to generate virtual sensor data associated with a machine component based on sensor data measured by actual sensors. The ECM can also execute a machine learning model configured to generate offset data for the sensor data and/or the virtual sensor data, based on operating conditions, an age of the machine component, and/or other factors that the reduced-order model may not consider. The sensor data and/or the virtual sensor data, adjusted based on the offset data, can indicate whether the machine component has failed or is predicted to fail at a future point in time, and/or a remaining usable life of the machine component.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Applicant: Caterpillar Inc.
    Inventors: Yanchai Zhang, Wenming Zhao, Chunhui Pan, Daojie Zhang, Xuefei Hu, Shiferaw Damtie Beyene, Nathan J. Wieland, John Dewey Gates, Nimesh Akalanka Jayakody
  • Patent number: 11619670
    Abstract: A detection system for detecting winding faults, such as inter-turn winding faults in the stator and/or rotor of an electrical generator utilizes one or more vibration sensors that can be located on a generator housing. The vibration sensors make mechanical vibration measurements and transmit them to a fault analyzer. The fault analyzer can compare the measured vibrations with a threshold to determine if a winding is occurring. In an embodiment, the fault analyzer can convert the mechanical vibration measurements from the time domain to a frequency domain to facilitate analysis.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: April 4, 2023
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Wenming Zhao, Yong Sun, Xuefei Hu
  • Publication number: 20230000111
    Abstract: This invention discloses method for feeding Hermetia illucens and used as for preparing composite material of puparium, which comprises the following steps: S1, dry Hermetia illucens pupariums and grind them into powdery, S2, adding powdery of Hermetia illucens pupariums into sodium hydroxide aqueous solution, stirring, separating and filtering, S3, adding the pupariums into hydrochloric acid solution, stirring, separating and filtering; S4, placing the pupariums into sodium hydroxide aqueous solution, stirring, separating and filtering; S5, drying the pupariums, and screening out the granular pretreated powder of the Hermetia illucens pupariums. The invention also disclose preparation method of composite material and thin film of Hermetia illucens pupariums and antibacterial and antimildew additive.
    Type: Application
    Filed: November 13, 2020
    Publication date: January 5, 2023
    Inventors: Chi-Hui Tsou, Manuel Reyes De Guzman, Pranut Potiyaraj, Xuemei Zhang, Ya-Li Sun, Chen Gao, Xuefei Hu, Fei-Fan Ge, Juan Du, Chunyan Zeng, Tao Yang, Ya-Ling Lee, Chih-Yuan Tsou, Jian Chen, Zhijun Chen, Shuai Yuan, Yi-Hua Wen, Chin-San Wu
  • Patent number: 11499547
    Abstract: A hydraulic fracturing machine includes a pump failure detection system. The hydraulic fracturing machine includes a hydraulic fracturing pump with a power end and a fluid end. The power end includes a plurality of roller bearings, and the fluid end includes a flow of fluid. A particle sensor coupled to the power end is configured to transmit particle information regarding a quantity of particles in the fluid. A temperature sensor, also coupled to the power end, is configured to transmit temperature information regarding a temperature of the fluid. A vibration sensor coupled to the power end is configured to transmit vibration information regarding a vibration of each of the plurality of roller bearings. An electronic control module analyzes the particle information, the temperature information and the vibration information, and calculates a failure warning level based on the analysis.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: November 15, 2022
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Zhijun Cai, Nathan S. Pauli, Zhaoxu Dong, Yong Sun, Xuefei Hu
  • Patent number: 11428704
    Abstract: A system and method for protecting a genset from pole slip is disclosed. The system may comprise a generator, a prime mover and a controller. The generator includes a stator and a rotor. The prime mover is configured to drive rotation of the rotor. The controller may be configured to: determine mechanical status of the generator based on data associated with a translational displacement of the rotor; determine electrical status of the generator based on (a) a load angle or (b) the load angle and a rate of change of the load angle associated with rotation of the rotor in the stator; determine an operating condition of the generator based on fusion of the mechanical status and the electrical status; if the operating condition is a pole-slip-warning, activate an output member to display or emit a warning; and, if the operating condition is a pole-slip, activate a protective action.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: August 30, 2022
    Assignee: Caterpillar Inc.
    Inventors: Zhijun Cai, Yanchai Zhang, Wenming Zhao, Yong Sun, Xuefei Hu, Eric Wayne Ohlson, Suresh Baddam Reddy
  • Publication number: 20220139117
    Abstract: A system may comprise a device. The device may be configured to receive, from one or more sensor devices of the machine, sensor data associated with wear of one or more components of an undercarriage of the machine; and predict, using a machine learning model and the sensor data, an amount wear of the one or more components based on a wear rate of the one or more components. The machine learning model is trained, using training data, to predict the wear rate of the one or more components. The training data includes two or more of: historical sensor data, historical inspection data, or simulation data, of a simulation model, from one or more third devices. The device may perform an action based on the amount of wear.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 5, 2022
    Applicant: Caterpillar Inc.
    Inventors: Li Zhang, Eric J. Johannsen, Yanchai Zhang, Xuefei Hu, Daniel W. Hoyt
  • Patent number: 11268411
    Abstract: A method for adjusting a valve lash in an internal combustion engine includes receiving a first signal generated by a sensor secured to the internal combustion engine, the first signal being indicative of a closing of a valve, receiving a second signal indicative of at least one of an engine speed of the internal combustion engine or a position of a camshaft of the internal combustion engine, and automatically determining an adjusted amount of lash associated with the valve based on the received first signal and the received second signal. The method also includes comparing the adjusted amount of lash to at least one predetermined threshold, and providing, in response to determining that the adjusted amount of lash is greater than the at least one predetermined threshold, a valve lash re-adjustment notification.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 8, 2022
    Assignee: Caterpillar Inc.
    Inventors: Yifeng Lu, Yanchai Zhang, Zhaoxu Dong, Nathan S. Pauli, Xuefei Hu, Purna C. Nalla, Brian W. Young, James D. Siegle
  • Publication number: 20210381401
    Abstract: A method for adjusting a valve lash in an internal combustion engine includes receiving a first signal generated by a sensor secured to the internal combustion engine, the first signal being indicative of a closing of a valve, receiving a second signal indicative of at least one of an engine speed of the internal combustion engine or a position of a camshaft of the internal combustion engine, and automatically determining an adjusted amount of lash associated with the valve based on the received first signal and the received second signal. The method also includes comparing the adjusted amount of lash to at least one predetermined threshold, and providing, in response to determining that the adjusted amount of lash is greater than the at least one predetermined threshold, a valve lash re-adjustment notification.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 9, 2021
    Inventors: Yifeng Lu, Yanchai Zhang, Zhaoxu Dong, Nathan S. Pauli, Xuefei Hu, Purna C. Nalla, Brian W. Young, James D. Siegle
  • Publication number: 20210311122
    Abstract: A detection system for detecting winding faults, such as inter-turn winding faults in the stator and/or rotor of an electrical generator utilizes one or more vibration sensors that can be located on a generator housing. The vibration sensors make mechanical vibration measurements and transmit them to a fault analyzer. The fault analyzer can compare the measured vibrations with a threshold to determine if a winding is occurring. In an embodiment, the fault analyzer can convert the mechanical vibration measurements from the time domain to a frequency domain to facilitate analysis.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 7, 2021
    Applicant: Caterpillar Inc.
    Inventors: Yanchai Zhang, Wenming Zhao, Yong Sun, Xuefei Hu
  • Publication number: 20210270261
    Abstract: A hydraulic fracturing machine includes a pump failure detection system. The hydraulic fracturing machine includes a hydraulic fracturing pump with a power end and a fluid end. The power end includes a plurality of roller bearings, and the fluid end includes a flow of fluid. A particle sensor coupled to the power end is configured to transmit particle information regarding a quantity of particles in the fluid. A temperature sensor, also coupled to the power end, is configured to transmit temperature information regarding a temperature of the fluid. A vibration sensor coupled to the power end is configured to transmit vibration information regarding a vibration of each of the plurality of roller bearings. An electronic control module analyzes the particle information, the temperature information and the vibration information, and calculates a failure warning level based on the analysis.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 2, 2021
    Applicant: Caterpillar Inc.
    Inventors: Yanchai Zhang, Zhijun Cai, Nathan S. Pauli, Zhaoxu Dong, Yong Sun, Xuefei Hu
  • Publication number: 20210215733
    Abstract: A system and method for protecting a genset from pole slip is disclosed. The system may comprise a generator, a prime mover and a controller. The generator includes a stator and a rotor. The prime mover is configured to drive rotation of the rotor. The controller may be configured to: determine mechanical status of the generator based on data associated with a translational displacement of the rotor; determine electrical status of the generator based on (a) a load angle or (b) the load angle and a rate of change of the load angle associated with rotation of the rotor in the stator; determine an operating condition of the generator based on fusion of the mechanical status and the electrical status; if the operating condition is a pole-slip-warning, activate an output member to display or emit a warning; and, if the operating condition is a pole-slip, activate a protective action.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 15, 2021
    Applicant: Caterpillar Inc.
    Inventors: Zhijun Cai, Yanchai Zhang, Wenming Zhao, Yong Sun, Xuefei Hu, Eric Wayne Ohlson, Suresh Baddam Reddy
  • Patent number: 10844854
    Abstract: A pump monitoring and notification system for a hydraulic pump includes an accelerometer and a controller. The accelerometer is associated with the hydraulic pump and is disposed relative to the hydraulic pump to generate acceleration data indicative of acceleration of the hydraulic pump. The controller is configured to access a fault threshold, access a time threshold, and determine an acceleration of the accelerometer based upon the acceleration data from the accelerometer. The controller is further configured to determine an RMS average of the acceleration of the accelerometer based upon the acceleration of the hydraulic pump, compare the RMS average of the acceleration of the accelerometer to the fault threshold, and generate an alert signal when the RMS average of the acceleration of the accelerometer exceeds the fault threshold for a time period exceeding the time threshold.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: November 24, 2020
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Zhijun Cai, Zhaoxu Dong, Xuefei Hu
  • Patent number: 10663372
    Abstract: A rig management system is disclosed. The rig management system may be configured to receive vibration data from a set of sensors installed on one or more elements of a hydraulic fracturing rig. The rig management system may be configured to perform a first processing of the vibration data utilizing a moving window technique to identify a possible failure of a set of bearings. The rig management system may be configured to perform a second processing utilizing a set of processing techniques after identifying the possible failure of the set of bearings. The rig management system may be configured to determine that the possible failure is an actual failure based on a result of performing the second processing. The rig management system may be configured to perform an action after determining that the possible failure is the actual failure.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: May 26, 2020
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Yong Sun, Mingang Wang, Xuefei Hu, Zhaoxu Dong, Chunhui Pan
  • Patent number: 10656051
    Abstract: A system for detecting wear or failure of a genset coupling of a genset power system is provided. The system includes a vibration sensor for measuring vibrations, and an additional sensor for measuring an operating condition. A controller is configured to process operating condition data from the additional sensor using a modeling software to generate simulated data. The controller applies time domain information of at least one of the simulated data and vibration sensor data to the modeling software using a machine learning algorithm, and perform a comparison to identify wear or failure of the coupling, wherein, when performing the comparison, the controller compares at least one of: time domain information of the vibration sensor data to time domain information of the simulated data or frequency domain information of the vibration sensor data to frequency domain information of the simulated data, to identify wear or failure of the coupling.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 19, 2020
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Maurice Dust, Perry D Converse, Xuefei Hu, Yong Sun
  • Patent number: 10563545
    Abstract: Some examples described herein may involve determining an advance timing window between the valve opening or closing and a designated time that the valve is scheduled to open or close; determining a closing velocity of the valve; monitoring an engine speed of the engine; determining valve lash information based on the advance timing window, the closing velocity, and the engine speed, wherein the valve lash information identifies a magnitude of the valve lash or whether the magnitude of the valve lash associated with the valve satisfies a threshold; and performing an action based on the valve lash information.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: February 18, 2020
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Zhaoxu Dong, Arun Rajendran, Yifeng Lu, Xuefei Hu, Lidi Chen, Rodney D. Harms
  • Publication number: 20190353557
    Abstract: A rig management system is disclosed. The rig management system may be configured to receive vibration data from a set of sensors installed on one or more elements of a hydraulic fracturing rig. The rig management system may be configured to perform a first processing of the vibration data utilizing a moving window technique to identify a possible failure of a set of bearings. The rig management system may be configured to perform a second processing utilizing a set of processing techniques after identifying the possible failure of the set of bearings. The rig management system may be configured to determine that the possible failure is an actual failure based on a result of performing the second processing. The rig management system may be configured to perform an action after determing that the possible failure is the actual failure.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 21, 2019
    Applicant: Caterpillar Inc.
    Inventors: Yanchai Zhang, Yong Sun, Mingang Wang, Xuefei Hu, Zhaoxu Dong, Chunhui Pan
  • Publication number: 20190316496
    Abstract: Some examples described herein may involve determining an advance timing window between the valve opening or closing and a designated time that the valve is scheduled to open or close; determining a closing velocity of the valve; monitoring an engine speed of the engine; determining valve lash information based on the advance timing window, the closing velocity, and the engine speed, wherein the valve lash information identifies a magnitude of the valve lash or whether the magnitude of the valve lash associated with the valve satisfies a threshold; and performing an action based on the valve lash information.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 17, 2019
    Applicant: Caterpillar Inc.
    Inventors: Yanchai ZHANG, Zhaoxu DONG, Arun RAJENDRAN, Yifeng LU, Xuefei HU, Lidi CHEN, Rodney D. HARMS
  • Patent number: 10378537
    Abstract: A method for detecting a leak in a pump comprises: monitoring discharge pressure time domain signals of the pump; monitoring piston position time domain signals for each piston of a plurality of pistons; filtering the monitored discharge pressure time domain signals and the monitored piston position time domain signals of each piston of the plurality of pistons via a band pass filter; determining, at each pump revolution for each piston, a sum of product of the filtered discharge pressure time domain signals and the filtered piston position time domain signals; determine, at each pump revolution for each piston, an absolute value of each sum; determining, at each pump revolution, a largest absolute value of the determined absolute values; determining a corresponding piston of the plurality of pistons associated with the largest absolute value; and determining a cylinder of the pump associated with the determined corresponding piston as leaking.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 13, 2019
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Venkata Bhagavathi Dandibhotla, Zhijun Cai, Zhaoxu Dong, Xuefei Hu
  • Publication number: 20190195292
    Abstract: Methods and apparatus for predicting clutch local peak temperatures in real time and controlling engagement of a friction clutch are disclosed. The clutch local peak temperature prediction can take into account machine operating parameters such as clutch control current, clutch shaft speed and clutch load to determine clutch local peak temperatures at hot spots within the friction clutch. A thermal-mechanical finite element analysis model may be developed for the friction clutch and used to generate a surrogate model of the friction clutch that can be used by an electronic control module of the machine to predict the local peak temperature of the friction clutch in real time and control engagement and disengagement of the friction clutch to maintain the local peak temperature below a critical peak temperature above which damage to the components of the friction clutch may occur.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Applicant: Caterpillar Inc.
    Inventors: Chunhui Pan, James Grant Cotner, Xuefei Hu, Zhaoxu Dong, Yong Sun, Yanchai Zhang