Patents by Inventor Liansong WANG
Liansong WANG 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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Publication number: 20240106107Abstract: A dipole including a flexible end configured for being plugged into a socket in an antenna structure. The flexible end includes two plastic parts hingedly connected to each other. The dipole provides a pluggable and adjustable connection with the antenna structure.Type: ApplicationFiled: December 7, 2023Publication date: March 28, 2024Inventors: Dieter ZIERHUT, Bernhard RIST, Christian HELBIG, Johann Baptist OBERMAIER, Serban REBEGEA, Tekin ÖLMEZ, Liansong WANG, Qiangguo ZHOU
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Patent number: 11852670Abstract: Embodiments of this application relate to the monitoring field, and disclose a method for monitoring an insulation monitoring circuit and a battery management system. In some embodiments of this application, the method for monitoring an insulation monitoring circuit includes: in a state in which a first switch and a second switch are closed and a third switch is open, obtaining a first electrical signal detected by a second monitoring module; and based on the first electrical signal and a voltage reference value between a positive electrode of a battery pack and a negative electrode of the battery pack, determining whether an insulation monitoring circuit is faulty; or obtaining a second electrical signal detected by a first monitoring module and a third electrical signal detected by a third monitoring module, and based on the second electrical signal and the third electrical signal, determining whether the insulation monitoring circuit is faulty.Type: GrantFiled: December 21, 2021Date of Patent: December 26, 2023Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Meng Li, Changjian Liu, Fuming Ye, Fangjie Zhou, Liansong Wang, Lidan Yan
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Publication number: 20230198147Abstract: An antenna element for a multi-band antenna device includes a dielectric body provided with one or more metal layers. The dielectric body includes a base plate and one or more wall elements arranged on the base plate. One or more first radiating elements and one or more second radiating elements are arranged on the base plate, and are configured to radiate in a first and a second frequency band, respectively. A first feeding network is connected to the first radiating elements and a second feeding network is connected to the second radiating elements, for operating the first and second radiating elements as a first and second antenna array, respectively. The first feeding network is provided, at least partly, as a metal layer of the one or more metal layers on the one or more wall elements.Type: ApplicationFiled: February 17, 2023Publication date: June 22, 2023Inventors: Juan SEGADOR ALVAREZ, Liansong WANG, Dmitrij SEMILOVSKY, Zhi GONG
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Publication number: 20220121262Abstract: This application discloses a power supply guarantee system and method. The power supply guarantee system is applied to a battery management system. The power supply guarantee system includes: a main control module, configured to send a received wake-up time to a timing device; a high voltage power module, configured to power the timing device according to electrical energy in a high voltage battery pack; the timing device, configured to set a wake-up clock according to the wake-up time, start timing when the BMS enters sleep, and send a discharge instruction to the high voltage battery pack when the timing reaches the wake-up time; and a power conversion module, configured to convert high voltage electrical energy into low voltage electrical energy, and use the low voltage electrical energy to power the BMS, where the high voltage electrical energy is output by the high voltage battery pack according to the discharge instruction.Type: ApplicationFiled: December 31, 2021Publication date: April 21, 2022Applicant: Contemporary Amperex Technology Co., LimitedInventors: Liansong WANG, Zhimin DAN, Fupeng CAI, Yizhen HOU, Wei ZHANG
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Publication number: 20220113344Abstract: Embodiments of this application relate to the monitoring field, and disclose a method for monitoring an insulation monitoring circuit and a battery management system. In some embodiments of this application, the method for monitoring an insulation monitoring circuit includes: in a state in which a first switch and a second switch are closed and a third switch is open, obtaining a first electrical signal detected by a second monitoring module; and based on the first electrical signal and a voltage reference value between a positive electrode of a battery pack and a negative electrode of the battery pack, determining whether an insulation monitoring circuit is faulty; or obtaining a second electrical signal detected by a first monitoring module and a third electrical signal detected by a third monitoring module, and based on the second electrical signal and the third electrical signal, determining whether the insulation monitoring circuit is faulty.Type: ApplicationFiled: December 21, 2021Publication date: April 14, 2022Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Meng LI, Changjian LIU, Fuming YE, Fangjie ZHOU, Liansong WANG, Lidan YAN
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Patent number: 11303215Abstract: The present application discloses a system and method for providing a constant power source. The system includes: a main control module configured to receive a wake-up time and send the wake-up time to a timer device; a timer power supply module configured to supply power to the timer device according to electric energy in a high-voltage battery pack; a high-voltage power supply module configured to supply power to a power conversion module according to the electric energy in the high-voltage battery pack; the timer device configured to set a wake-up clock according to the wake-up time, start timing when a battery management system (BMS) enters into sleep, and send a discharge instruction to the high-voltage battery pack when the timing reaches the wake-up time; the power conversion module configured to convert high-voltage electric energy output from the high-voltage battery pack into low-voltage electric energy and supply power to the BMS.Type: GrantFiled: December 29, 2020Date of Patent: April 12, 2022Assignee: Contemporary Amperex Technology Co., LimitedInventors: Liansong Wang, Zhimin Dan, Yizhen Hou, Fangjie Zhou, Changjian Liu
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Patent number: 11171569Abstract: The present application discloses a wake-up method and wake-up system for a battery management system. The method may include converting, by a conversion unit, a low-voltage power signal detected at a low-voltage input port into a high-voltage wake-up signal, and receiving, by a high-voltage control module, a working voltage provided by a power battery pack under control of the high-voltage wake-up signal; controlling, by the high-voltage control module, the high-voltage transmission module to be turned on, providing the working voltage to a synchronous rectifying module by the turned-on high-voltage transmission module, and converting high-voltage electric energy provided by the power battery pack into low-voltage electric energy; and transmitting, under control of the synchronous rectifying module, the low-voltage electric energy to the low-voltage controller, and waking up the battery management system by the low-voltage controller.Type: GrantFiled: December 30, 2020Date of Patent: November 9, 2021Assignee: Contemporary Amperex Technology Co., LimitedInventors: Liansong Wang, Zhimin Dan, Changjian Liu, Fupeng Cai, Fuming Ye
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Patent number: 11120958Abstract: The embodiments of the present disclosure disclose a relay holding circuit and a battery management system. the relay holding circuit may include: a high-voltage isolated power source, a power source driving module, and a microprocessor of a battery management system; the high-voltage isolated power source may be respectively connected to two electrodes of a battery pack, an output terminal of the power source driving module, the microprocessor, and a first terminal of a first switching device; an input terminal of the power source driving module may be connected to the microprocessor; the microprocessor may be further connected to a primary battery, the microprocessor may output a low-level signal to the power source driving module when the primary battery supplies power abnormally.Type: GrantFiled: November 15, 2019Date of Patent: September 14, 2021Assignee: Contemporary Amperex Technology Co., LimitedInventors: Zhimin Dan, Delong Shi, Yizhen Hou, Wei Zhang, Liansong Wang
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Publication number: 20210119547Abstract: The present application discloses a system and method for providing a constant power source. The system includes: a main control module configured to receive a wake-up time and send the wake-up time to a timer device; a timer power supply module configured to supply power to the timer device according to electric energy in a high-voltage battery pack; a high-voltage power supply module configured to supply power to a power conversion module according to the electric energy in the high-voltage battery pack; the timer device configured to set a wake-up clock according to the wake-up time, start timing when a battery management system (BMS) enters into sleep, and send a discharge instruction to the high-voltage battery pack when the timing reaches the wake-up time; the power conversion module configured to convert high-voltage electric energy output from the high-voltage battery pack into low-voltage electric energy and supply power to the BMS.Type: ApplicationFiled: December 29, 2020Publication date: April 22, 2021Applicant: Contemporary Amperex Technology Co., LimitedInventors: Liansong Wang, Zhimin Dan, Yizhen Hou, Fangjie Zhou, Changjian Liu
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Publication number: 20210119549Abstract: The present application discloses a wake-up method and wake-up system for a battery management system. The method may include converting, by a conversion unit, a low-voltage power signal detected at a low-voltage input port into a high-voltage wake-up signal, and receiving, by a high-voltage control module, a working voltage provided by a power battery pack under control of the high-voltage wake-up signal; controlling, by the high-voltage control module, the high-voltage transmission module to be turned on, providing the working voltage to a synchronous rectifying module by the turned-on high-voltage transmission module, and converting high-voltage electric energy provided by the power battery pack into low-voltage electric energy; and transmitting, under control of the synchronous rectifying module, the low-voltage electric energy to the low-voltage controller, and waking up the battery management system by the low-voltage controller.Type: ApplicationFiled: December 30, 2020Publication date: April 22, 2021Applicant: Contemporary Amperex Technology Co., LimitedInventors: Liansong Wang, Zhimin Dan, Changjian Liu, Fupeng Cai, Fuming Ye
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Publication number: 20210027961Abstract: The embodiments of the present disclosure disclose a relay holding circuit and a battery management system. the relay holding circuit may include: a high-voltage isolated power source, a power source driving module, and a microprocessor of a battery management system; the high-voltage isolated power source may be respectively connected to two electrodes of a battery pack, an output terminal of the power source driving module, the microprocessor, and a first terminal of a first switching device; an input terminal of the power source driving module may be connected to the microprocessor; the microprocessor may be further connected to a primary battery, the microprocessor may output a low-level signal to the power source driving module when the primary battery supplies power abnormally.Type: ApplicationFiled: November 15, 2019Publication date: January 28, 2021Applicant: Contemporary Amperex Technology Co., LimitedInventors: Zhimin DAN, Delong SHI, Yizhen HOU, Wei ZHANG, Liansong WANG