Patents by Inventor Jianbo Zhang
Jianbo 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).
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Patent number: 10908225Abstract: Estimating a battery state of health (SOH) is described. The state of heath is estimated by obtaining a partial charge or discharge capacity of a target battery in a state of charge (SOC) interval of each of a plurality of SOCs. First dV/dSOC data is separately calculated for each SOC in an mth preset battery capacity based on the mth preset battery capacity and the partial charge or discharge capacity in the SOC interval of each SOC. A smallest overall dV/dSOC data deviation is determined from all overall dV/dSOC data deviations corresponding to M preset battery capacities. A preset battery capacity is determined corresponding to the smallest overall dV/dSOC data deviation as a retention capacity of an aged target battery. The retention capacity of the aged target battery is divided by a retention capacity of the target battery in a new battery state, to obtain the SOH estimate of the target battery.Type: GrantFiled: October 18, 2019Date of Patent: February 2, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kejie Gao, Zhongxiao Liu, Jianbo Zhang, Zhe Li, Zhiwei Wu, Zuqi Liu
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Patent number: 10712395Abstract: A method for detecting a battery state of health includes a current and a voltage are measured twice in a period of time; corresponding model algorithms are selected according to the measured current values; corresponding battery open circuit voltage values and battery state of charge values at a start time and an end time of the period are obtained based on the model algorithms; a battery capacity difference that indicates a present battery retention capacity and a battery capacity difference that indicates a future battery retention capacity are calculated; and a battery state of health value is calculated when impact of a measured battery temperature value is considered.Type: GrantFiled: December 4, 2017Date of Patent: July 14, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Jianping Jiang, Guanghui Zhang, Xiaosheng Zeng, Laisuo Su, Jianbo Zhang, Zhe Li
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Publication number: 20200049774Abstract: Estimating a battery state of health (SOH) is described. The state of heath is estimated by obtaining a partial charge or discharge capacity of a target battery in a state of charge (SOC) interval of each of a plurality of SOCs. First dV/dSOC data is separately calculated for each SOC in an mth preset battery capacity based on the mth preset battery capacity and the partial charge or discharge capacity in the SOC interval of each SOC. A smallest overall dV/dSOC data deviation is determined from all overall dV/dSOC data deviations corresponding to M preset battery capacities. A preset battery capacity is determined corresponding to the smallest overall dV/dSOC data deviation as a retention capacity of an aged target battery. The retention capacity of the aged target battery is divided by a retention capacity of the target battery in a new battery state, to obtain the SOH estimate of the target battery.Type: ApplicationFiled: October 18, 2019Publication date: February 13, 2020Inventors: Kejie GAO, Zhongxiao LIU, Jianbo ZHANG, Zhe LI, Zhiwei WU, Zuqi LIU
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Patent number: 10408014Abstract: The well killing device comprises: a first path; a flow regulating device; a pressure detector and a controlling device. The controlling device may control the discharge amount of the killing fluid in different killing stages according to the gas-fluid two-phase flow theory, the pressure of the killing fluid at the wellhead, and the rising speed of the drilling column.Type: GrantFiled: January 14, 2019Date of Patent: September 10, 2019Assignee: China University of Petroleum (East China)Inventors: Baojiang Sun, Xueqing Teng, Yaoming Zhang, Zhiyuan Wang, Hongtao Liu, Jianbo Zhang, Youqiang Liao
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Patent number: 10337267Abstract: The invention relates to the field of stratum drilling, and in particular to a control method and a control device for drilling operations. The control method comprises: detecting whether an overflow occurs in a well; controlling the wellhead back pressure based on a preset bottom hole pressure when no overflow occurs in the well, in order to keep the bottom hole pressure stable; and performing a shut-in operation and controlling the wellhead back pressure based on the increase in fluid discharge returned from an annulus of the well when an overflow occurs in the well, so as to keep the bottom hole pressure stable and prevent the gas in the stratum from continuing to invade into the drilling fluid during the process that the overflow drilling fluid is discharged from the bottom of the well.Type: GrantFiled: September 5, 2018Date of Patent: July 2, 2019Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)Inventors: Zhiyuan Wang, Shaowei Pan, Baojiang Sun, Jianbo Zhang, Jing Yu
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Publication number: 20180364312Abstract: This application provides a method for detecting a battery state of health. In the method, for a battery that does not supply power to a load within a time period, a detected unit is determined; an open-circuit voltage and a temperature of the detected unit are collected; a battery state of charge value and a loss capacity of the detected unit are obtained by means of calculation; and a battery state of health value of the detected unit is obtained by means of calculation according to a ratio of the loss capacity of the detected unit to an original capacity. This application further provides an apparatus for detecting a battery state of health. By means of technical solutions provided in this application, a deterioration degree of battery performance can be accurately monitored, and impact on a service is avoided.Type: ApplicationFiled: September 5, 2018Publication date: December 20, 2018Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Jianping Jiang, Laisuo Su, Jianbo Zhang
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Publication number: 20180088181Abstract: A method for detecting a battery state of health includes a current and a voltage are measured twice in a period of time; corresponding model algorithms are selected according to the measured current values; corresponding battery open circuit voltage values and battery state of charge values at a start time and an end time of the period are obtained based on the model algorithms; a battery capacity difference that indicates a present battery retention capacity and a battery capacity difference that indicates a future battery retention capacity are calculated; and a battery state of health value is calculated when impact of a measured battery temperature value is considered.Type: ApplicationFiled: December 4, 2017Publication date: March 29, 2018Inventors: Jianping Jiang, Guanghui Zhang, Xiaosheng Zeng, Laisuo Su, Jianbo Zhang, Zhe Li
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Publication number: 20170089850Abstract: The present invention relates to a device and method for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities. The device for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities comprises a supercritical carbon dioxide fracturing fluid throttling coefficient measurement system and a supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus; the supercritical carbon dioxide fracturing fluid throttling coefficient measurement system determines throttling coefficient of a high temperature and high pressure supercritical carbon dioxide fracturing fluid, and the supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus determines viscosity of the high temperature and high pressure supercritical carbon dioxide fracturing fluid.Type: ApplicationFiled: September 20, 2016Publication date: March 30, 2017Applicant: China University of Petroleum (East China)Inventors: Jintang Wang, Baojiang Sun, Yun Liu, Zhiyuan Wang, Hao Li, Jianbo Zhang
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Patent number: 9594038Abstract: The present invention relates to a device and method for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities. The device for measuring supercritical carbon dioxide fracturing fluid throttling coefficient under different viscosities comprises a supercritical carbon dioxide fracturing fluid throttling coefficient measurement system and a supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus; the supercritical carbon dioxide fracturing fluid throttling coefficient measurement system determines throttling coefficient of a high temperature and high pressure supercritical carbon dioxide fracturing fluid, and the supercritical carbon dioxide fracturing fluid viscosity adjustment apparatus determines viscosity of the high temperature and high pressure supercritical carbon dioxide fracturing fluid.Type: GrantFiled: September 20, 2016Date of Patent: March 14, 2017Assignee: China University of Petroleum (East China)Inventors: Jintang Wang, Baojiang Sun, Yun Liu, Zhiyuan Wang, Hao Li, Jianbo Zhang
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Patent number: 8065022Abstract: Embodiments of the invention can include methods and systems for controlling clearances in a turbine. In one embodiment, a method can include applying at least one operating parameter as an input to at least one neural network model, modeling via the neural network model a thermal expansion of at least one turbine component, and taking a control action based at least in part on the modeled thermal expansion of the one or more turbine components. An example system can include a controller operable to determine and apply the operating parameters as inputs to the neural network model, model thermal expansion via the neural network model, and generate a control action based at least in part on the modeled thermal expansion.Type: GrantFiled: January 8, 2008Date of Patent: November 22, 2011Assignee: General Electric CompanyInventors: Karl Dean Minto, Jianbo Zhang, Erhan Karaca
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Publication number: 20110156298Abstract: The invention provides an injection molding method of stone-based composite material and equipment thereof, wherein the method comprises the following steps: a. putting raw materials into a charging device and then pushing the raw materials into a preforming machine barrel of a preforming device by a pressing component in the charging device; b. keeping the temperature being between 15° C. and 55° C. and compacting the raw materials with the rotation of a preforming screw and transporting the raw materials into a collecting block; c. injecting the raw materials into a mold through a mold gate under the injection force of 50 Mpa to 180 Mpa; d. keeping the temperature of the mold between 140° C. and 200° C. and curing time between 40 seconds and 300 seconds; and e. opening the mold to get the product. The invention has the advantages of simple production process, high acceptance rate of products manufactured, high production efficiency and low production cost.Type: ApplicationFiled: September 7, 2010Publication date: June 30, 2011Applicant: Ningbo Haitian Beihua Science and Technology Co., LTDInventors: Jianming ZHANG, Jianbo ZHANG, Xumin ZHANG, Hongbo ZHANG
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Patent number: 7959845Abstract: The invention provides an injection molding method of stone-based composite material and equipment thereof, wherein the method comprises the following steps: a. putting raw materials into a charging device and then pushing the raw materials into a preforming machine barrel of a preforming device by a pressing component in the charging device; b. keeping the temperature being between 15° C. and 55° C. and compacting the raw materials with the rotation of a preforming screw and transporting the raw materials into a collecting block; c. injecting the raw materials into a mold through a mold gate under the injection force of 50 Mpa to 180 Mpa; d. keeping the temperature of the mold between 140° C. and 200° C. and curing time between 40 seconds and 300 seconds; and e. opening the mold to get the product. The invention has the advantages of simple production process, high acceptance rate of products manufactured, high production efficiency and low production cost.Type: GrantFiled: September 7, 2010Date of Patent: June 14, 2011Assignee: Haitian Plastics Machinery GroupInventors: Jianming Zhang, Jianbo Zhang, Xumin Zhang, Hongbo Zhang
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Publication number: 20100100248Abstract: Embodiments of the invention can include methods and systems for controlling clearances in a turbine. In one embodiment, a method can include applying at least one operating parameter as an input to at least one neural network model, modeling via the neural network model a thermal expansion of at least one turbine component, and taking a control action based at least in part on the modeled thermal expansion of the one or more turbine components. An example system can include a controller operable to determine and apply the operating parameters as inputs to the neural network model, model thermal expansion via the neural network model, and generate a control action based at least in part on the modeled thermal expansion.Type: ApplicationFiled: January 8, 2008Publication date: April 22, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Karl Dean Minto, Jianbo Zhang, Erhan Karaca
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Patent number: 7553575Abstract: One end of an air passage (32) facing a cathode (33B) of a fuel cell (36) forming a fuel cell stack (6) is connected to a first manifold (1A), and the other end is connected to a second manifold (1B). A water-absorbing material (30) is disposed at a position in contact with an air flow in the first manifold (1A) and second manifold (1B). The air is made to circulate according to a humidity state by changing over between a first air flow direction wherein air flows from the first manifold (1A) to the second manifold (1B) via the air passage (32), and a second air flow direction wherein air flows from the second manifold (1B) to the first manifold (1A) via the air passage (32), so a membrane electrolyte is efficiently humidified.Type: GrantFiled: January 28, 2003Date of Patent: June 30, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Jianbo Zhang, Atsushi Miyazawa
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Publication number: 20080094408Abstract: The present invention provides a method and system for graphics processing. The graphics processing system comprises the primitive assembly, a vertex/geometry shader, the second primitive assembly, a cache memory, and a texture engine. The vertex/geometry shader can receive primitive data to execute can output vertex data.Type: ApplicationFiled: October 24, 2006Publication date: April 24, 2008Inventors: Xiaoqin Yin, Jinshan Zheng, Fang Xia, Pingping Shao, Jianbo Zhang, Lixia Yan
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Patent number: 7348086Abstract: A fuel cell (1) is constituted by stacking membrane electrode assemblies (2) and separators (3), wherein fuel gas passages (16), oxidizing gas passages (17) and coolant passages (9), which are formed by the separators (3), are arranged in parallel along the outer surfaces of gas diffusion layers (6A) and (6C) of the membrane electrode assemblies (2). With such a constitution, a thickness dimension of the separators (3) can be reduced, and with respect to a stacking direction of the fuel cell stack, the number of stacked unit cells can be increased in the same dimensions as that of the conventional fuel cell stack. Therefore, a fuel cell stack with a high output density can be obtained.Type: GrantFiled: November 12, 2002Date of Patent: March 25, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Ken Iwai, Atsushi Miyazawa, Jianbo Zhang
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Publication number: 20060209065Abstract: A method of occlusion culling of graphic objects, comprising the steps of storing a first mask and one or more depth values associated with areas inside and outside the mask for a pre-defined region, and evaluating the visibility of the primitive covering the same region, wherein visibility evaluation begins after the computation of the coverage mask of the primitive in the region, and the computation of one or more depth values representing the pixels of the primitive. The method of the present invention is a real-time method of generating per-region coverage mask and associated Z values after the second primitive is rendered in the same region, which can maximize the bandwidth savings for Z read for both overlapping and non-overlapping primitives, with different relations between their depth values.Type: ApplicationFiled: December 8, 2005Publication date: September 21, 2006Inventors: Eugene Lapidous, Jianbo Zhang, Guofang Jiao, Bozhan Chen, Ji Zhou
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Patent number: 6982713Abstract: A method and system for clearing depth and color buffers in a real time graphics rendering system 10. The method and system are able to improve both depth and color buffer clearing. The method and system may utilize a frame flag, a depth clearing module, and a fast color and frame flag clearing module. The system assigns a frame flag to each pixel, which is used to determine whether the current Z value for the pixel is valid. The frame flag may be attached to Z value in the depth buffer. Instead of filling entire depth and color buffers with background values, the system only fills the holes that were not drawn in the previous frame. The fast color and frame flag clearing module traverses a rectangular area, tile by tile, where a tile is a block of pixels, to determine whether each pixel is background by checking the frame flags that are read from the depth buffer.Type: GrantFiled: January 13, 2003Date of Patent: January 3, 2006Assignee: XGI Technology Inc.Inventors: Pingping Shao, Jianbo Zhang, Guofang Jiao, Chun Yu, Linglan Zhang, Jinshan Zheng
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Publication number: 20050069751Abstract: A polymer electrolyte fuel cell includes an electric power generating cell provided with a fuel electrode, an oxidizer electrode, a polymer electrolyte membrane sandwiched between the fuel electrode and the oxidizer electrode and a separator formed with a gas flow passage for reaction gas to be supplied to at least one of the fuel electrode and the oxidizer electrode. Also, the polymer electrolyte fuel cell includes a flow passage changeover mechanism changing over a configuration of the gas flow passage in accordance with an operating condition of a polymer electrolyte fuel cell.Type: ApplicationFiled: July 16, 2004Publication date: March 31, 2005Inventors: Jianbo Zhang, Toshihiro Takekawa, Kazuya Tajiri
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Publication number: 20040135781Abstract: A method and system for clearing depth and color buffers in a real time graphics rendering system 10. The method and system are able to improve both depth and color buffer clearing. The method and system may utilize a frame flag, a depth clearing module, and a fast color and frame flag clearing module. The system assigns a frame flag to each pixel, which is used to determine whether the current Z value for the pixel is valid. The frame flag may be attached to Z value in the depth buffer. Instead of filling entire depth and color buffers with background values, the system only fills the holes that were not drawn in the previous frame. The fast color and frame flag clearing module traverses a rectangular area, tile by tile, where a tile is a block of pixels, to determine whether each pixel is background by checking the frame flags that are read from the depth buffer.Type: ApplicationFiled: January 13, 2003Publication date: July 15, 2004Inventors: Pingping Shao, Jianbo Zhang, Guofang Jiao, Chun Yu, Linglan Zhang, Jinshan Zheng