Patents by Inventor Zhiyong Du
Zhiyong Du 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: 20240133975Abstract: A computerized simulation validating method for a full-scale distribution network single phase-to-ground fault test is implemented by simulating a full-scale test system with external quantities being controlled to be conformant and validating the full-scale distribution network single phase-to-ground fault test based on a conformance check result between the internal quantities of the field testing and the internal quantities of the simulation testing. The simulation validating method for a full-scale distribution network single phase-to-ground fault test improves normalization and conformance of the full-scale distribution network ground fault test. The computerized simulation validating system, apparatus, and medium for a full-scale distribution network single phase-to-ground fault test also achieve the benefits noted above.Type: ApplicationFiled: August 10, 2023Publication date: April 25, 2024Inventors: Zhi LI, Shaofeng YU, Dingfang KE, Peibo WANG, Kan SUN, Weiqiang LANG, Haijiang XU, Kelong WANG, Zhiyong LI, Kun YU, Guangyao YING, Xuqiang HE, Yezhao CHEN, Xiang ZHANG, Mingxiao DU, Huijuan GUI, Hongling HU, Biao PENG, Xubin XIAO
-
Publication number: 20240100015Abstract: The present disclosure provides an arctigenin liquid nano-preparation and a preparation method thereof, and relates to the technical field of pharmaceutical preparation. In the present disclosure, arctigenin is prepared into a liquid nano-preparation, having advantages of distribution of a droplet diameter on nanoscale, significantly increased specific surface area, rapid absorption, and high bioavailability. Meanwhile, nano-preparation entered the body can be captured by wandering leucocytes, and a medicament is delivered to inflammatory lesions through chemiotaxis, thereby conferring a targeted drug delivery feature on the arctigenin and making a therapy more targeted. Moreover, in the present disclosure, the arctigenin is dissolved in an oil phase, and the oil phase is dissolved in water by emulsification to further make the arctigenin dissolve in the water and increase water solubility of the arctigenin.Type: ApplicationFiled: November 16, 2022Publication date: March 28, 2024Inventors: Bin HE, Lijun WU, Zheng LU, Zhiping RAN, Guoming CHEN, Zhiyong SHAO, Xiabing CHEN, Wei LIU, Ying LI, Wu LIU, Qi ZHOU, Wenhai YANG, Dongqing LIU, Kangyu DU
-
Publication number: 20240092184Abstract: A method for controlling heating of an electric drive system of a vehicle, the electric drive system includes a motor controller and a motor, and the method includes: determining that the vehicle is in a travelling state; obtaining a rotation speed value and a torque control value of a motor and obtaining a carrier instruction value of a motor controller when receiving a heating instruction; obtaining a first current instruction value based on the rotation speed value and the torque control value, and obtaining a second current instruction value based on the torque control value and the first current instruction value; adjusting a control signal of the motor controller based on at least one of the second current instruction value or a second carrier frequency; and controlling the motor to operate based on the adjusted control signal, so that the electric drive system generates heat.Type: ApplicationFiled: November 30, 2023Publication date: March 21, 2024Inventors: Luhui XU, Xiangshuai XU, Shaopeng REN, Zhiyong DU
-
Patent number: 11811350Abstract: A motor control system includes a drive unit, a backup control unit, and a power unit. The drive unit is electrically connected to the power unit, and is configured to convert a received low-voltage drive signal into a high-voltage drive signal and output the high-voltage drive signal to the power unit. The power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The power supply drive signal is configured to drive a motor connected to the power unit to rotate. The backup control unit is electrically connected to the drive unit. The drive unit is configured to output a diagnosis signal indicating a running status of the drive unit to the backup control unit.Type: GrantFiled: November 25, 2020Date of Patent: November 7, 2023Assignee: BYD COMPANY LIMITEDInventors: Zhiyong Du, Luhui Xu, Yilong Yu, Axi Qi
-
Publication number: 20230086012Abstract: A device and a system for diagnosing a motor parameter are provided. The device includes a master chip, an excitation conditioning circuit, a motor resolver unit, and a sine and cosine conditioning circuit. The master chip includes a first analog-to-digital converter, a second analog-to-digital converter, a first processing unit, and a monitoring core.Type: ApplicationFiled: August 24, 2020Publication date: March 23, 2023Inventors: Yilong YU, Luhui XU, Zhiyong DU, Axi QI, Guangming YANG
-
Publication number: 20230076368Abstract: A motor control system includes a drive unit, a backup control unit, and a power unit. The drive unit is electrically connected to the power unit, and is configured to convert a received low-voltage drive signal into a high-voltage drive signal and output the high-voltage drive signal to the power unit. The power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The power supply drive signal is configured to drive a motor connected to the power unit to rotate. The backup control unit is electrically connected to the drive unit. The drive unit is configured to output a diagnosis signal indicating a running status of the drive unit to the backup control unit.Type: ApplicationFiled: November 25, 2020Publication date: March 9, 2023Inventors: Zhiyong DU, Luhui XU, Yilong YU, Axi QI
-
Publication number: 20230023760Abstract: An electric motor control system includes a master control module, a drive module, and a monitoring module. The master control module is configured to output a low-voltage drive signal to the drive module, the drive module converts the low-voltage drive signal into a high-voltage drive signal and outputs the high-voltage drive signal to a power unit, and the power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The monitoring module is electrically connected with the master control module and the drive module, and is configured to acquire the low-voltage drive signal, and output a fault signal to the master control module when the low-voltage drive signal is abnormal, to control the master control module to stop outputting the low-voltage drive signal.Type: ApplicationFiled: November 25, 2020Publication date: January 26, 2023Inventors: Zhiyong DU, Luhui XU, Yilong YU, Axi QI, Guangming YANG
-
Publication number: 20230006437Abstract: A motor control system includes a main control unit, a power supply unit, and a driving unit. The main control unit obtains sampling data of a motor and a power supply signal from the driving unit, generates a motor control signal according to the sampling data, and outputs a safety enable signal when determining that motor drive is abnormal according to the sampling data or when determining that power supply to the driving unit is abnormal according to the power supply signal. The power supply unit supplies power to the main control unit, monitors a state of the main control unit, and outputs a safety cut-off signal when the power supply unit or the main control unit is abnormal. The driving unit drives the motor according to the motor control signal, and switches to a safe path when receiving any one of the safety enable or safety cut-off signal.Type: ApplicationFiled: September 13, 2022Publication date: January 5, 2023Inventors: Luhui XU, Yilong YU, Zhiyong DU, Axi QI, Guangming YANG
-
Publication number: 20220410718Abstract: A motor control system and a vehicle. The motor control system includes: a vehicle control unit, configured to obtain vehicle state data and output an instruction for cutting off motor output torque when determining an unexpected power transmission failure according to the vehicle state data; and a motor controller unit, connected to the vehicle control unit, and configured to stop outputting motor control torque in response to the instruction for cutting off motor output torque.Type: ApplicationFiled: August 26, 2022Publication date: December 29, 2022Inventors: Luhui XU, Yilong YU, Zhiyong DU, Axi QI, Guangming YANG
-
Publication number: 20220393632Abstract: The present disclosure provides an electric motor control system and a vehicle. The electric motor control system includes a motor drive module, a multi-core processing module, and a safety logic module. The multi-core processing module includes a main function core and a lockstep monitoring core. The main function core is configured to obtain sampling data, and when any one of the sampling data, a running status of the main function core, a motor control signal, and a running status of a motor is abnormal, the lockstep monitoring core outputs a safety trigger signal; and the safety logic module is configured to output an instruction for prohibiting execution of the motor control signal to the motor drive module when receiving the safety trigger signal.Type: ApplicationFiled: December 29, 2020Publication date: December 8, 2022Inventors: Yilong YU, Luhui XU, Zhiyong DU, Axi QI, Guangming YANG
-
Publication number: 20220360183Abstract: An energy conversion apparatus, a power system, and a vehicle are provided. The energy conversion apparatus includes a motor coil (11) and a bridge arm converter (12). The bridge arm converter (12) is connected to an external battery (200) and an external charging port (10). The motor coil (11) is connected to the external charging port (10), and the motor coil (11) includes a plurality of phase windings, each phase winding includes N coil units, first ends of the N coil units of each phase winding are connected together and then connected to a corresponding phase bridge arm of the plurality of phase bridge arms, and second ends of coil units in each phase winding are connected to second ends of corresponding coil units in other phase windings and then selectively connected to the charging port (10).Type: ApplicationFiled: June 18, 2020Publication date: November 10, 2022Inventors: Luhui XU, Zhiyong DU, Jiawei WAN, Caiwen LI
-
Patent number: 10544065Abstract: Provided is an organic-inorganic polymeric water-retaining fertilizer, which is a co-polymer made by fusion and co-polymerization of an organic water-retaining monomer and an inorganic nutrient under action of a catalyst, a biological enzyme and a modifying agent. The co-polymer is of a three-dimensional mesh-like hydrophilic group structure. In a method for preparing the organic-inorganic polymeric water-retaining fertilizer, after obtaining a neutralized pre-polymer from the organic monomer with the catalyst, an initiator and a cross-linking agent are added; the inorganic nutrient and a metasilicate are added simultaneously, a solution is formed by stirring sufficiently; the biological enzyme is added for catalysis; a co-polymer is obtained after fusion and co-polymerization; and granulation and drying are carried out. Preferably, the catalyst is an inorganic alkaline solution.Type: GrantFiled: June 30, 2017Date of Patent: January 28, 2020Assignee: QINGDAO XINYAODI AGRICULTURAL TECHNOLOGY JOINT-STOCK CO., LTD.Inventors: Yanfang Zhu, Zhiyong Du, Hongzhi Zhu
-
Publication number: 20180354869Abstract: The present invention provides an organic-inorganic polymeric water-retaining fertilizer. The organic-inorganic polymeric water-retaining fertilizer is a co-polymer made by fusion and co-polymerization of an organic water-retaining monomer and an inorganic nutrient under action of a catalyst, a biological enzyme and a modifying agent. The co-polymer is of a three-dimensional mesh-like hydrophilic group structure. In a method for preparing the organic-inorganic polymeric water-retaining fertilizer, after obtaining a neutralized pre-polymer from the organic water-retaining monomer under the action of the catalyst, an initiator and a cross-linking agent are added; the inorganic nutrient and a metasilicate are added simultaneously, a solution is formed by stirring sufficiently; the biological enzyme is added for catalysis; a co-polymer is obtained after fusion and co-polymerization; and granulation and drying are carried out. Preferably, the catalyst is an inorganic alkaline solution.Type: ApplicationFiled: June 30, 2017Publication date: December 13, 2018Inventors: Yanfang ZHU, Zhiyong DU, Hongzhi ZHU
-
Patent number: 9969290Abstract: A charging system for an electric vehicle and an electric vehicle including the same are provided. The charging system includes: a power battery; a first charging interface and a second charging interface connected with an external power source respectively; a first charging control branch connected between the power battery and the first charging interface, and a second charging control branch connected between the power battery and the second charging interface; and a controller connected with the first charging interface and the second charging interface respectively.Type: GrantFiled: December 31, 2012Date of Patent: May 15, 2018Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITEDInventors: Zheqing Tang, Zhiyong Du, Fu Tang
-
Publication number: 20180113374Abstract: Disclosed is a camera module, the camera module comprises a bottom base (400), a shell body matched with the bottom base (400), hollowed and is provided with an opening at a top surface thereof, and a lens component (100) and a carrier (300) received in the shell body (200). The camera module further comprises two groups of moving members (600) arranged between an outer wall of the carrier (300) and the shell body (200), the lens component (100) is received in the carrier (300) and moves with respect to the bottom base (400) through the at least two groups of moving members (600). The camera module has prominent advantages including a simple inner structure, being easy to be carried, a quick response of focusing, a stable focusing performance, and an excellent imaging effect.Type: ApplicationFiled: October 24, 2016Publication date: April 26, 2018Inventors: Zhiyong Du, Renzhu Huang
-
Patent number: 9887647Abstract: A method for checking an out-of-step of a synchronous motor includes detecting three-phase currents of the synchronous motor; determining whether a relationship between the three-phase currents satisfies a preset requirement; and if no, determining that the synchronous motor is out of step. It is determined that the synchronous motor is out of step when amplitudes of each current of the three-phase currents are not equal or when the phase difference between the three-phase currents is not 120°.Type: GrantFiled: September 27, 2013Date of Patent: February 6, 2018Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITEDInventors: Hui Luo, Zhiyong Du, Xuguang Zhou, Xinxin Zhang, Xing Chen, Taotao Yang, Lipin Cheng
-
Patent number: 9887646Abstract: A method for checking an out-of-step of a synchronous motor includes detecting electric degrees of the synchronous motor, in which the electric degrees comprise at least a first electric degree and a second electric degree detected at a preset interval, and the second electric degree is detected after the first electric degree; comparing the first electric degree with the second electric degree to obtain a comparing result; and determining that the synchronous motor is out of step when the comparing result satisfies a preset requirement. It is determined that the synchronous motor is out of step when the electric degree keeps unchanged or decreases progressively, or an increment of the electric degree is very small.Type: GrantFiled: September 27, 2013Date of Patent: February 6, 2018Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITEDInventors: Hui Luo, Zhiyong Du, Xuguang Zhou, Xinxin Zhang, Xing Chen, Kai Xiao, Lipin Cheng
-
Patent number: 9862287Abstract: A power system for an electric vehicle, an electric vehicle and a motor controller for an electric vehicle are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a motor control switch (40); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and a third terminal of the motor control switch (40), and configured to control the charge-discharge control module (50) and the motor control switch (40) according to a current working mode of the power system.Type: GrantFiled: June 30, 2014Date of Patent: January 9, 2018Assignee: BYD COMPANY LIMITEDInventors: Xiaohua Tang, Guangming Yang, Xinxin Zhang, Zhiyong Du, Min Hu, Yilong Yu, Jian Liu, Zheqing Tang, Fu Tang
-
Patent number: 9718374Abstract: A charging system for an electric vehicle and an electric vehicle are provided. The charging system comprises: a power battery; a charge-discharge socket; a bidirectional DC/DC module having a first DC terminal connected with a first terminal of the power battery and a second DC terminal connected with a second terminal of the power battery; a bidirectional DC/AC module having a first DC terminal connected with the second terminal of the power battery and a second DC terminal connected with the first terminal of the power battery; a charge-discharge control module having a first terminal connected with the AC terminal of the bidirectional DC/AC module and a second terminal connected with the charge-discharge socket; and a controller module connected with the charge-discharge control module, and configured to control the charge-discharge control module according to a current operation mode of the charging system.Type: GrantFiled: December 31, 2012Date of Patent: August 1, 2017Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITEDInventors: Zheqing Tang, Zhiyong Du, Fu Tang, Jun Zhao, Qiyuan Liang
-
Publication number: 20160159228Abstract: A power system for an electric vehicle, an electric vehicle and a motor controller for an electric vehicle are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a motor control switch (40); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and a third terminal of the motor control switch (40), and configured to control the charge-discharge control module (50) and the motor control switch (40) according to a current working mode of the power system.Type: ApplicationFiled: June 30, 2014Publication date: June 9, 2016Inventors: XIAOHUA TANG, GUANGMING YANG, XINXIN ZHANG, ZHIYONG DU, MIN HU, YILONG YU, JIAN LIU, ZHEQING TANG, FU TANG