Patents by Inventor Ruigang Zhang

Ruigang Zhang 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: 12240349
    Abstract: A system for determining a state of health (SOH) of an energy storage device comprises a controller configured to be coupled to the energy storage device. The controller is configured to determine a current value drawn by or supplied to the energy storage device over a predefined period of time. In response to the current value not satisfying a current threshold, the controller determines a current gain factor and determines an adjusted current value from the determined current value based on the current gain factor. The controller is configured to determine an estimated SOH of the energy storage device based on the adjusted current value, and indicate the estimated SOH on a user interface.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: March 4, 2025
    Assignee: Cummins Inc.
    Inventors: Ruigang Zhang, Guodong Fan, Richard A. Booth
  • Publication number: 20240385253
    Abstract: A method and apparatus for determining a state of health of a battery are disclosed. The apparatus comprises means for sensing a voltage of the battery, means for sensing a current through the battery, means for estimating a value of an equivalent circuit model parameter of the battery from the sensed voltage and current, wherein the equivalent circuit model parameter is based at least in part on an internal capacitance of the battery, means for storing a predetermined relationship between the equivalent circuit model parameter and the battery state of health, and means for calculating a state of health of the battery based on the estimated value of the equivalent circuit model parameter using the predetermined relationship.
    Type: Application
    Filed: September 30, 2021
    Publication date: November 21, 2024
    Inventors: Yujun Wang, Ruigang Zhang, Lawrence Hilligoss
  • Patent number: 12104817
    Abstract: A control method for a multi-split air conditioning system capable of simultaneous cooling and heating to solve the problem that uneven cooling and heating occurs when running an existing multi-split air conditioning system. The method includes calculating the cooling or heating temperature effect deviation of each indoor unit on the basis of the indoor ambient temperature and set temperature of the environment where each indoor unit is located; calculating the total cooling effect deviation and total heating effect deviation of an multi-split air conditioning system on the basis of the horsepower of all the indoor units and the corresponding cooling temperature deviation or heating temperature deviation; and selectively adjusting the degrees of opening of valve boxes on the basis of the total cooling effect deviation and the total heating effect deviation. The method ensures balanced distribution of refrigerant, balanced running effects the units, and avoids uneven heating and cooling.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 1, 2024
    Assignees: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Baitian Zhuo, Bin Shi, Shaojiang Cheng, Ruigang Zhang, Jun Wang
  • Patent number: 12061004
    Abstract: An expansion valve control method for a multi-split air-conditioning system to solve the problem of detecting leakage of an expansion valve of a multi-split air-conditioning system. The system includes an outdoor unit and a plurality of indoor units connected to the outdoor unit, each of the indoor units is connected to the outdoor unit by a first pipeline and a second pipeline. The expansion valve control method includes acquiring an indoor temperature of an environment where an indoor unit is located; acquiring the temperature of a first pipeline of the indoor unit and the temperature of a second pipeline of the indoor unit when the indoor unit is in a shutdown state; and according to at least the indoor temperature of the environment where the indoor unit is located, determining the leakage condition of an expansion valve of the indoor unit.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: August 13, 2024
    Assignees: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Baitian Zhuo, Bin Shi, Shaojiang Cheng, Ruigang Zhang, Jun Wang
  • Patent number: 12018479
    Abstract: The disclosure discloses a method for preparing a multifunctional ecological exterior wall, including: preparing a ceramic board of a ceramic thermal insulation waterproof layer; preparing a ceramic sound-absorbing board of a sound-absorbing layer; and installing a ecological exterior wall: leveling a surface of the wall of a building with cement slurry, and applying a cement bonding layer thereon; laying the ceramic thermal insulation waterproof board on the cement bonding layer, and applying the cement bonding layer on the ceramic board; laying the ceramic sound-absorbing board on the cement bonding layer and reserving a gap used to place a pipe; driving the screw-thread steel bolt from the surface of the ceramic sound-absorbing board into the wall obliquely; installing and fixing the pipe in the gap, which is reserved at the upper of the ceramic sound-absorbing board; planting a green plant on the surface of the ceramic board of the sound-absorbing layer.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: June 25, 2024
    Assignee: SHANXI TIANHE NEW MATERIAL TECHNOLOGY CO., LTD.
    Inventors: Suogui Zhang, Guoliang Sun, Ruigang Zhang, Yixing Deng, Dake Wang
  • Publication number: 20240195206
    Abstract: A system for charging a battery is provided, in which the system includes a plurality of sensors coupled with the battery, at least one battery charger coupled with the battery, and a processing unit coupled with the sensors and the battery charger. The processing unit includes a battery degradation modeling module and an aging-aware battery charging strategy module. The processing unit receives sensor information from the sensors, uses the battery degradation modeling module to detect aging phenomena or mechanisms that cause aging effect of the battery with a degradation model of the battery based on the sensor information, uses the aging-aware battery charging strategy module to calculate a charging profile for the battery based on the aging effect of the battery and the sensor information, and controls the battery charger to charge the battery based on the charging profile.
    Type: Application
    Filed: April 22, 2022
    Publication date: June 13, 2024
    Inventors: Manilk Narula, Xing Jin, Kenneth M. Follen, Dat Duc Le, Gary L. Parker, Ruigang Zhang
  • Patent number: 12000605
    Abstract: A method for controlling the balanced frosting of outdoor units in a multi-split air-conditioning system solving the problem in existing multi-split air-conditioning systems of resource waste caused by a low utilization efficiency of the heating capability of outdoor units as a result of some of the outdoor units entering a defrosting state when the heating capability is not fully utilized. According to the control method, by determining whether an outdoor unit set satisfies a frosting unbalance condition, the actual output capability of outdoor units of the outdoor unit set is selectively controlled on the basis of the frosting degrees of all the outdoor units. Thus, the difference between the frosting degrees of different outdoor units in the outdoor unit set at the same time can be reduced, such that the heating capability of all the outdoor units can be fully utilized when the outdoor unit set enters a defrosting state.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: June 4, 2024
    Assignees: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Baitian Zhuo, Bin Shi, Shaojiang Cheng, Ruigang Zhang, Jun Wang
  • Patent number: 11899069
    Abstract: A system is provided for performing a power estimation process for an electric vehicle using a controller. The controller estimates an inner state of an energy storage supply of the electric vehicle. The inner state represents a state-of-charge (SOC) and/or a state-of-health (SOH) of the energy storage supply. The controller also estimates an SOC value and/or an SOH value of the energy storage supply based on at least one of: a present current level, a present voltage level, a present temperature, and time-based information. The controller further estimates a bounded SOC value based on the SOC value, a first upper bound, a the first lower bound, and/or estimates a bounded SOH value based on the SOH value, a second upper bound, and a second lower bound. The controller then controls an electrification process of the electric vehicle based on the bounded SOC and/or SOH values.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 13, 2024
    Assignee: CUMMINS INC.
    Inventors: Guodong Fan, Ruigang Zhang, Jordan Loos, Aleksey Yezerets
  • Patent number: 11777135
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: October 3, 2023
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • Publication number: 20230288489
    Abstract: A system and method used to predict the state of health of a battery in a powertrain of a vehicle including a vehicle route profile generator arranged to generate a vehicle specific rout profile based on historical vehicle driving information, are disclosed. In one example, the system and method also include a powertrain model to convert the vehicle specific route profile to a predicted battery demand profile, and a state of health profile generator to generate a predicted state of health profile of the battery based on the predicted battery demand. In another example, the system further includes a vehicle performance manager arranged to generate a command to modify operation of the powertrain to extend battery life based on the vehicle specific route profile.
    Type: Application
    Filed: January 13, 2023
    Publication date: September 14, 2023
    Applicant: Cummins Inc.
    Inventors: Xing Jin, Ninad Ghike, Ruigang Zhang, Anant Puri, Richard A. Booth
  • Publication number: 20230275279
    Abstract: A method of manufacturing a battery cell is disclosed. The method comprises recovering a cathode module from a used battery cell, assembling a new battery cell using the recovered cathode module. The used battery cell may be from a battery pack which has failed or reached end-of-life. The new battery cell may comprise a new anode module, a new electrolyte and/or a new separator. This may allow a battery cell to be manufactured in a manner which is more cost effective and environmentally sustainable than prior techniques.
    Type: Application
    Filed: July 20, 2021
    Publication date: August 31, 2023
    Inventors: Chung-Hsuan Huang, Corey W. Trobaugh, Ruigang Zhang
  • Publication number: 20230223603
    Abstract: Battery cells, each including an electrolyte, first and second working electrodes in the electrolyte, and first and second reference electrodes in the electrolyte, are disclosed. The first and second reference electrodes each comprises an active material on a current collector. The active material of the first reference electrode is different from the active material of the second reference electrode.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 13, 2023
    Inventors: Yujun Wang, Ruigang Zhang, Yanli Yin, Connor Ryan
  • Publication number: 20230213897
    Abstract: According to an embodiment, an information processing device includes one or more processors configured to: extract a first subgraph indicating a connection relation of a first node that matches with a schema in which a connection relation between nodes is defined, among first nodes included in a first graph indicating a connection relation of the first nodes each associated with an attribute; determine a template that is output by a first model by inputting input information based on the first subgraph to the first model, the first model being learned to input the input information based on a subgraph indicating a connection relation between the nodes and to output the template of a formula; and set one of the attributes associated with the first nodes as the variable to be used in the determined template to generate the formula.
    Type: Application
    Filed: August 26, 2022
    Publication date: July 6, 2023
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ruigang ZHANG, Akira HOSOKAWA, Shinichi NAGANO
  • Patent number: 11611455
    Abstract: The present application relates to a method for communication detection. The method comprises: determining a length level of a communication link according to a time length of pulse data during transmission of data over the communication link, and determining a detection time point according to the length level of the communication link. The length level of the communication link is determined according to the time length of pulse data during transmission of data over the communication link, and then the detection time point of the data is confirmed, thereby realizing dynamic determination of the detection time point of data according to the time length of the pulse data, and data waveform attenuation caused by an excessively long distance is avoided by means of automatic adjustment of the detection time point, so that the correctness of data detection is ensured, and the stability of long-distance homebus communication is improved.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 21, 2023
    Assignees: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Shaojiang Cheng, Defang Guo, Bin Shi, Baitian Zhuo, Jun Wang, Ruigang Zhang
  • Patent number: 11568662
    Abstract: An embodiment of the present invention provides an information processing apparatus for detecting an attribute indicated in different tables in common and generating information about the attribute. An information processing apparatus as an embodiment of the present invention includes a detector and an information generator. The detector detects a common attribute indicated in a first table and a second table. The information generator generates information about the common attribute based on contents of the first table and the second table.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 31, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinichi Nagano, Ruigang Zhang, Mikito Iwamasa
  • Patent number: 11552818
    Abstract: A relay device and a multi-split control system that achieve reliable communication between an outdoor air conditioning unit and multiple indoor units under the condition that the length of a communication bus is limited. The system expands the communication distance by a cascade path formed by a plurality of relay devices. The cascade path transmits control signals sent by a master control device/a specific slave control device (i.e. a slave control device communicating with the master control device or certain relay device) to corresponding slave control devices one by one, and the corresponding slave control devices transmit the signals to the master control device/specific slave control device according to a response signal fed back by the control signal, where the relay devices may respectively communicate with a source node device and a destination node device on the basis of the master-slave type communication mode.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: January 10, 2023
    Assignees: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Defang Guo, Benhai Yuan, Ruigang Zhang, Bin Shi, Baitian Zhuo, Shaojiang Cheng, Jun Wang
  • Patent number: 11536495
    Abstract: An oil return control method for a multi-split air conditioner and a system accomplishing the same includes: calculating an average exhaust pressure within an oil return period Pd_AVG; determining whether the average exhaust pressure Pd_AVG?the set threshold Pdthreshold; if Pd_AVG?Pdthreshold, maintaining the multi-split air conditioner working in heating mode to ensure an acceptable oil return performance without affecting the air conditioning effect of indoor unit in heating mode; if Pd_AVG<Pdthreshold, switching the multi-split air conditioner to cooling mode, stopping a fan within those power-on indoor units and entering into a cooling oil return process and switching the multi-split air conditioner back to heating mode until the cooling oil return process ends.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: December 27, 2022
    Assignees: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Defang Guo, Baitian Zhuo, Bin Shi, Shaojiang Cheng, Ruigang Zhang, Jun Wang
  • Patent number: 11526660
    Abstract: An embodiment of the present invention provides an information processing apparatus capable of complementarily adding an attribute not included in a table in order to detect tables having a corresponding relationship. An information processing apparatus as an embodiment of the present invention includes a complementer. The complementer complementarily adds an attribute not included in a first table based on a content of at least one of the first table and an electronic document including the first table.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: December 13, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ruigang Zhang, Shinichi Nagano
  • Patent number: 11477056
    Abstract: The present disclosure relates to a method for controlling communication compensation, comprising: determining a length class of a communication link according to a time length of pulse data transmitted on the communication link; and determining a compensation scheme for communication compensation according to the length class of the communication link. In the invention, a length class of a communication link determined according to a time length of pulse data transmitted on the communication link is used to determine a compensation scheme for communication compensation so as to perform time compensation on data, thereby preventing attenuation caused by an excessively long communication distance, and improving the stability of long-distance communication performed by means of Homebus. Also disclosed are an apparatus for controlling communication compensation, and an air conditioner.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: October 18, 2022
    Assignees: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Shaojiang Cheng, Defang Guo, Bin Shi, Baitian Zhuo, Ruigang Zhang
  • Publication number: 20220307713
    Abstract: A method for controlling the balanced frosting of outdoor units in a multi-split air-conditioning system solving the problem in existing multi-split air-conditioning systems of resource waste caused by a low utilization efficiency of the heating capability of outdoor units as a result of some of the outdoor units entering a defrosting state when the heating capability is not fully utilized. According to the control method, by determining whether an outdoor unit set satisfies a frosting unbalance condition, the actual output capability of outdoor units of the outdoor unit set is selectively controlled on the basis of the frosting degrees of all the outdoor units. Thus, the difference between the frosting degrees of different outdoor units in the outdoor unit set at the same time can be reduced, such that the heating capability of all the outdoor units can be fully utilized when the outdoor unit set enters a defrosting state.
    Type: Application
    Filed: September 4, 2020
    Publication date: September 29, 2022
    Applicants: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Baitian ZHUO, Bin SHI, Shaojiang CHENG, Ruigang ZHANG, Jun WANG