Patents Assigned to CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.
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Publication number: 20230174125Abstract: Provided are a control method, apparatus and device for an automatic train operation system. The method includes: acquiring multiple preset traction distribution strategies; determining, for each traction distribution strategy, a performance index of the traction distribution strategy; determining an optimal traction distribution strategy based on performance indexes of the multiple traction distribution strategies; and controlling the automatic train operation system based on the optimal traction distribution strategy.Type: ApplicationFiled: September 9, 2020Publication date: June 8, 2023Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Wenqing MEI, Yuliang WEN, Cheng LI, Zhengfang ZHANG, Puhua ZHONG, Yuan LUO, Jie JIANG, Liang HU, Yuehu SHAO, Quanqiang ZHOU
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Patent number: 11654945Abstract: A method, a device and a system for safely and reliably performing real-time speed measurement and continuous positioning are provided. With the method, inertial navigation data from an inertial navigation signal source arranged in a train is detected, and correction data from a correction signal source is detected. In a case that no correction data is detected, a current speed and a current position of the train is determined based on the inertial navigation data, and in a case that the correction data is detected, the inertial navigation data is corrected with the correction data, and a current speed and position of the train are determined based on the corrected inertial navigation data. Therefore, even in the case that no correction data is detected, the real-time speed measurement and continuous positioning can be performed safely and reliably based on the inertial navigation data.Type: GrantFiled: March 16, 2017Date of Patent: May 23, 2023Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua Chen, Jianghua Feng, Shu Cheng, Rongjun Ding, Chaoqun Xiang, Yijing Xu, Liang Han
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Publication number: 20230147692Abstract: A method and system device for performing multi-carrying of a linear motor for magnetic levitation transportation is provided. With the method for performing multi-carrying of a linear motor for magnetic levitation transportation, linear motor traction power information and other linear motor carried information are generated, and the other linear motor carried information is transmitted through a channel for carrying the linear motor traction power information that is constructed based on a linear motor structure.Type: ApplicationFiled: April 16, 2020Publication date: May 11, 2023Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua CHEN, Jianghua FENG, Rongjun DING, Yijing XU, Yu SHI, Liang HAN, Yanhui WEN, Yonghui NAN, Anfeng ZHAO, Haojiong LV, Kai FANG, Huadong LIU, Hui SHEN, Shu CHENG, Jungui SU, Zhenbang ZHOU, Cheng LI
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Patent number: 11594889Abstract: Disclosed is an optimized energy interconnection system for an urban railway train in the technical field of urban railway transportation power supply, for addressing the technical problem that distribution of regenerative braking energy flows cannot be accurately determined. The system includes a DC intermediate bus and a multi-port flow controllable energy router. The multi-port flow controllable energy router can comprehensively control a source and a load connected in parallel on the DC intermediate bus and thus can accurately determine the distribution of regenerative braking energy flows, thereby forming a well-developed system for evaluating usage of the braking energy.Type: GrantFiled: November 2, 2018Date of Patent: February 28, 2023Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Hongbo Li, Zhixue Zhang, Zihao Huang, Yilong Duan, Wenguang Luo, Wenqing Mei
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Patent number: 11427085Abstract: A long stator power supply section and a long stator linear motor for a maglev train, comprising a plurality of stator core modules (1) and stator coils (2) equal in number to the stator core modules (1). Each stator of the plurality of stator coils (2) is correspondingly embedded into one stator core module of the stator core modules (1) respectively; joints are arranged at both ends of each stator coil (2); the stator coils (2) on every two adjacent stator core modules (1) are detachably connected by means of the joints; and the joints of the stator coils (2) on the stator core modules (1) at both ends are connected to a feeder cable.Type: GrantFiled: October 10, 2017Date of Patent: August 30, 2022Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua Chen, Jianghua Feng, Benyu Xin, Rongjun Ding, Kuisen Tian, Shuying Guo
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Patent number: 11252630Abstract: A method and a system for rail transit communication. The method includes: selecting a second target FSO transceiver from the FSO transceivers that are currently located within a signal coverage of a target FSO base station, in response to detecting that a first target free-space-optics (FSO) transceiver moves out of the signal coverage of the target FSO base station when data communication between the target FSO base station and the target user terminal is performed via the first target FSO transceiver, where the target FSO base station is one of the FSO base stations located on the rail; and maintaining the data communication between the target FSO base station and the target user terminal, by using the second target FSO transceiver. Handover among the base stations is reduced for user equipment, data communication rate is increased, and communication experience of passengers can be improved.Type: GrantFiled: May 17, 2017Date of Patent: February 15, 2022Assignees: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD., NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Jianghua Feng, Mina Taheri, Qiang Fan, Nirwan Ansari, Roberto Rojas-Cessa, Mengchu Zhou, Gaohua Chen, Dajun Wang, Jun Tang, Tairan Zhang
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Publication number: 20210129880Abstract: A method, a device and a system for safely and reliably performing real-time speed measurement and continuous positioning are provided. With the method, inertial navigation data from an inertial navigation signal source arranged in a train is detected, and correction data from a correction signal source is detected. In a case that no correction data is detected, a current speed and a current position of the train is determined based on the inertial navigation data, and in a case that the correction data is detected, the inertial navigation data is corrected with the correction data, and a current speed and position of the train are determined based on the corrected inertial navigation data. Therefore, even in the case that no correction data is detected, the real-time speed measurement and continuous positioning can be performed safely and reliably based on the inertial navigation data.Type: ApplicationFiled: March 16, 2017Publication date: May 6, 2021Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua CHEN, Jianghua FENG, Shu CHENG, Rongjun DING, Chaoqun XIANG, Yijing XU, Liang HAN
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Publication number: 20200207215Abstract: A long stator power supply section and a long stator linear motor for a maglev train, comprising a plurality of stator core modules (1) and stator coils (2) equal in number to the stator core modules (1). Each stator of the plurality of stator coils (2) is correspondingly embedded into one stator core module of the stator core modules (1) respectively; joints are arranged at both ends of each stator coil (2); the stator coils (2) on every two adjacent stator core modules (1) are detachably connected by means of the joints; and the joints of the stator coils (2) on the stator core modules (1) at both ends are connected to a feeder cable.Type: ApplicationFiled: October 10, 2017Publication date: July 2, 2020Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua CHEN, Jianghua FENG, Benyu XIN, Rongjun DING, Kuisen TIAN, Shuying GUO
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Patent number: 10547382Abstract: An FSO communication system includes a laser, an optical detector and a first optical adjustment module and a controller. The laser is configured to emit an optical signal. The optical detector is configured to receive an optical signal from the first optical adjustment module. The controller is configured to obtain an optical power of an optical signal received by the optical detector; and generate a control command based on the optical power and transmit the control command. The first optical adjustment module is configured to: receive the control command and the optical signal emitted by the laser; adjust, in response to the control command, the optical signal emitted by the laser to cause the optical power of the optical signal received by the optical detector to be in a preset reasonable range; and transmit the adjusted optical signal to the optical detector.Type: GrantFiled: May 11, 2017Date of Patent: January 28, 2020Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Jianghua Feng, Jiabo Xiao, Qinghua Quan, Tairan Zhang, Guotao Jiang, Qi Lu
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Publication number: 20190380084Abstract: A method and a system for rail transit communication. The method includes: selecting a second target FSO transceiver from the FSO transceivers that are currently located within a signal coverage of a target FSO base station, in response to detecting that a first target free-space-optics (FSO) transceiver moves out of the signal coverage of the target FSO base station when data communication between the target FSO base station and the target user terminal is performed via the first target FSO transceiver, where the target FSO base station is one of the FSO base stations located on the rail; and maintaining the data communication between the target FSO base station and the target user terminal, by using the second target FSO transceiver. Handover among the base stations is reduced for user equipment, data communication rate is increased, and communication experience of passengers can be improved.Type: ApplicationFiled: May 17, 2017Publication date: December 12, 2019Applicants: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD., NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Jianghua FENG, Mina TAHERI, Qiang FAN, Nirwan ANSARI, Roberto ROJAS-CESSA, Mengchu ZHOU, Gaohua CHEN, Dajun WANG, Jun TANG, Tairan ZHANG
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Publication number: 20190253143Abstract: An FSO communication system includes a laser, an optical detector and a first optical adjustment module and a controller. The laser is configured to emit an optical signal. The optical detector is configured to receive an optical signal from the first optical adjustment module. The controller is configured to obtain an optical power of an optical signal received by the optical detector; and generate a control command based on the optical power and transmit the control command. The first optical adjustment module is configured to: receive the control command and the optical signal emitted by the laser; adjust, in response to the control command, the optical signal emitted by the laser to cause the optical power of the optical signal received by the optical detector to be in a preset reasonable range; and transmit the adjusted optical signal to the optical detector.Type: ApplicationFiled: May 11, 2017Publication date: August 15, 2019Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Jianghua FENG, Jiabo XIAO, Qinghua QUAN, Tairan ZHANG, Guotao JIANG, Qi LU
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Patent number: 10374545Abstract: A rotor temperature monitoring method and system for a permanent magnet synchronous motor are provided. According to the method and system, an a-phase line current and a b-phase line current of a stator of a permanent magnet synchronous motor are obtained as a first line current and a second line current; further, a line voltage between the a-phase and the b-phase of the stator is obtained and a rotating speed of the rotor of the permanent magnet synchronous motor is obtained; and then, the first line current, the second line current, the line voltage, the rotating speed of the rotor, an inductance parameter of the permanent magnet synchronous motor and a temperature characteristic equation of a permanent magnet of the rotor are substituted into a preset rotor permanent magnet temperature expression to calculate and obtain the temperature of the rotor.Type: GrantFiled: September 2, 2015Date of Patent: August 6, 2019Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Jianghua Feng, Jing Shang, Junfeng Xu, Yuliang Wen, Xiong Liu, Chaoyang Zhang, Lei Xiao, Yaping He, Yonghui Nan, Hanfeng Zheng
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Patent number: 9837946Abstract: A method and device for acquiring a rotor position based on a permanent magnet synchronous drive system. The permanent magnet synchronous drive system includes an inverter and a permanent magnet synchronous motor, wherein the initial speed of the permanent magnet synchronous motor is not zero. The method includes: controlling a bridge arm switch of an inverter periodically; collecting a three-phase current of the permanent magnet synchronous motor at a fixed time within each control period; and after the three-phase current is reversed, sending same to a phase-locked loop system to conduct processing, so as to obtain a phase angle of an induction potential vector, and according to the phase angle of the induction potential vector, acquiring a rotor position angle of the permanent magnet synchronous motor.Type: GrantFiled: March 3, 2015Date of Patent: December 5, 2017Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Jianghua Feng, Kean Liu, Jing Shang, Junfeng Xu, Lei Xiao, Chaoyang Zhang, Yuliang Wen, Yaping He, Xiong Liu