Patents by Inventor Xiaohua Tang

Xiaohua Tang 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: 20240120635
    Abstract: Active antenna units and/or base station antennas are provided that include a reflector body with heat dissipation structures that can be directly exposed to environmental conditions during use. The heat dissipation structures have frequency selective surfaces and can be formed of sheet metal or provided as separate extruded or die cast members that can be coupled to the reflector body.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 11, 2024
    Inventors: Chengcheng Tang, Joy Huang, Bo Wu, Samantha Merta, Haifeng Li, XiaoHua Hou
  • Patent number: 11944116
    Abstract: A device for removing unwanted objects from cut tobacco in a cut tobacco production line is disclosed, which includes: a raw cut tobacco feeding and conveying unit (N1), a heavy unwanted object removal unit (N2), a cut tobacco dispersion and recovery unit (N3), a moderate unwanted object removal unit (N4), a cut tobacco humidification unit (N5) and a light unwanted object removal unit (N6). An unwanted object removal method using the cut tobacco unwanted object removal device is also disclosed. The device and method of the disclosure can effectively remove unwanted objects from cut tobacco.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: April 2, 2024
    Assignee: CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD.
    Inventors: Jun Tang, Banghua He, Bin Yi, Bing Zhou, Wenqiang Lin, Bo Cai, Hao Wang, Xiaohua Gao, Ze Liu, Ning Ma, Guozhi Tan, Wenqi Li, Li Tang, Huitian Li
  • Publication number: 20230380518
    Abstract: A bionic air-conditioning garment, includes an air-conditioning garment body, a smart watch, and wireless temperature and humidity sensing sensors. A cooling water conveying system is disposed in each of seven block areas. The smart watch is connected to the controller through a wireless communication device. When a water pump works, liquid in a backpack water bag is transported to an outer layer of the air-conditioning garment body through labyrinth drip irrigation belts, and dispersed to the outer layer of the air-conditioning garment body. The outer layer of the air-conditioning garment body is hydrophilic to quickly expand water, so that the liquid expands to form a moisture permeable layer on the air-conditioning garment body. Under irradiation of external natural wind and sun, the bionic air-conditioning garment absorbs heat through gasification and evaporation of the liquid, which energy efficiency ratio is large and heat dissipation and cooling effects are better.
    Type: Application
    Filed: August 16, 2022
    Publication date: November 30, 2023
    Inventor: XIAOHUA TANG
  • Patent number: 10118498
    Abstract: A power supply system for an electric vehicle includes a battery module, a first DC/DC converter, a second DC/DC converter, a first switch, a second switch and a third switch. The battery module has a negative electrode, a first positive electrode and a second positive electrode. The first DC/DC converter has an input terminal connected with the second positive electrode. The second DC/DC converter has an input terminal connected with the second positive electrode. The first switch is connected between the second positive electrode and the first DC/DC converter. The second switch is connected between the second positive electrode and the second DC/DC converter. The third switch is connected between the first positive electrode and an output terminal of the second DC/DC converter.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: November 6, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Longfei Li, Shulin Liang, Xiaohua Tang
  • Patent number: 9862287
    Abstract: 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: Grant
    Filed: June 30, 2014
    Date of Patent: January 9, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Xiaohua Tang, Guangming Yang, Xinxin Zhang, Zhiyong Du, Min Hu, Yilong Yu, Jian Liu, Zheqing Tang, Fu Tang
  • Patent number: 9665511
    Abstract: A method, an upper computer and a system for programming nodes in a bus network are provided. The method comprises: analyzing a program file to be programmed to obtain data of the program file and a storage address corresponding to the data; broadcasting a routing request message and receiving responding messages returned from a plurality of lower computers, each lower computer corresponding to one node in the bus network; analyzing the responding messages to obtain an operating state of each node among the plurality of layers of nodes; receiving a selected node to be programmed, activating the selected node and transmitting the data and the storage address to a single chip microcomputer corresponding to the selected node when the operating state of each node is a forwarding state; and storing corresponding to the selected node the data in a memory of the single chip microcomputer according to the storage address.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: May 30, 2017
    Assignee: BYD COMPANY LIMITED
    Inventors: Huan Xia, Junlin Gong, Xiaohua Tang, Xiaofeng Shen, Xinghui Wang, Chao Wang
  • Publication number: 20160159228
    Abstract: 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: Application
    Filed: June 30, 2014
    Publication date: June 9, 2016
    Inventors: XIAOHUA TANG, GUANGMING YANG, XINXIN ZHANG, ZHIYONG DU, MIN HU, YILONG YU, JIAN LIU, ZHEQING TANG, FU TANG
  • Publication number: 20160039304
    Abstract: A power supply system for an electric vehicle includes a battery module, a first DC/DC converter, a second DC/DC converter, a first switch, a second switch and a third switch. The battery module has a negative electrode, a first positive electrode and a second positive electrode. The first DC/DC converter has an input terminal connected with the second positive electrode. The second DC/DC converter has an input terminal connected with the second positive electrode. The first switch is connected between the second positive electrode and the first DC/DC converter. The second switch is connected between the second positive electrode and the second DC/DC converter. The third switch is connected between the first positive electrode and an output terminal of the second DC/DC converter.
    Type: Application
    Filed: March 21, 2014
    Publication date: February 11, 2016
    Inventors: Longfei Li, Shulin Liang, Xiaohua Tang
  • Publication number: 20150193362
    Abstract: A method, an upper computer and a system for programming nodes in a bus network are provided. The method comprises: analyzing a program file to be programmed to obtain data of the program file and a storage address corresponding to the data; broadcasting a routing request message and receiving responding messages returned from a plurality of lower computers, each lower computer corresponding to one node in the bus network; analyzing the responding messages to obtain an operating state of each node among the plurality of layers of nodes; receiving a selected node to be programmed, activating the selected node and transmitting the data and the storage address to a single chip microcomputer corresponding to the selected node when the operating state of each node is a forwarding state; and storing corresponding to the selected node the data in a memory of the single chip microcomputer according to the storage address.
    Type: Application
    Filed: June 21, 2013
    Publication date: July 9, 2015
    Inventors: Huan Xia, Junlin Gong, Xiaohua Tang, Xiaofeng Shen, Xinghui Wang, Chao Wang
  • Patent number: 8676414
    Abstract: A hybrid vehicle includes a multi-mode power system. The power system includes a battery, an electrical power input, a first motor/generator, a second motor/generator, and a clutch. A first operating mode is defined by deactivation of the internal combustion engine and the operation of the vehicle by electrical force provided from the battery to the second motor/generator. In a second operating mode, activation of the internal combustion engine generates electrical power by providing rotational force to the first motor/generator. In a third operating mode, engagement of the clutch couples the internal combustion engine and the second motor/generator to provide rotational force to the wheels. In a fourth operating mode, engagement of the clutch couples the internal combustion engine with the second motor/generator, and the first motor/generator further provides rotational force to the wheels.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: March 18, 2014
    Assignee: BYD Co. Ltd.
    Inventors: HongBing Luo, XuGuang Zhou, XiaoHua Tang, XinXin Zhang, Ting Luo
  • Patent number: 8540601
    Abstract: The present invention discloses a hybrid power output system for outputting the power to the wheel driving shaft, comprising an engine, a first motor, a second motor, a battery, a first clutch, a second clutch and a constant-mesh fixed ratio reduction unit, wherein the first motor and the second motor are connected electrically with the battery; the engine is connected to the first motor via the first clutch; the first motor is connected to the second motor via the second clutch; the second motor is connected to the wheel driving shaft via the constant-mesh fixed ratio reduction unit. This hybrid power output system can enhance the comfort of the vehicle, save the space and reduce the cost, moreover, it can realize multiple drive modes to improve the power efficiency and reduce the fuel consumption.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: September 24, 2013
    Assignee: BYD Co. Ltd.
    Inventors: Chuanfu Wang, Hongbin Luo, Wei Chen, Xiaohua Tang, Youchuan Song, Xuguang Zhou, Huanguang Chen, Jianhua Zhang, Yunhao Liao
  • Patent number: 8497651
    Abstract: An open phase detection system and method for a three-phase motor is provided. The open phase detection system comprises: a signal generating unit coupled to the three-phase motor and configured to generate a driving signal for driving the three-phase motor; a detecting unit coupled to the signal generating unit, and configured to detect whether the signal generating unit generates the driving signal and to detect three-phase current values of the three-phase motor; and a determining unit coupled to the detecting unit, and configured to determine whether the three-phase motor has open phase according to the three phase current values detected by the detecting unit when the driving signal is detected.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: July 30, 2013
    Assignee: BYD Company Limited
    Inventors: Xiaohua Tang, Zhiyong Du, Yongzhuang Zhou, Cong Xia, Lipin Cheng, Hui Ma
  • Patent number: 8478466
    Abstract: A control system for a hybrid vehicle controls the various operating modes of the hybrid vehicle. Operating modes of the hybrid vehicle include an electric-only power mode, a series hybrid mode, a series hybrid dual-power mode, and a parallel hybrid tri-power mode. The control system selects one of the operating modes for the hybrid vehicle based on one or more inputs and comparisons. Examples of inputs for the control system include a gear-mode, a present battery storage capacity, a present velocity of the hybrid vehicle, and the previous operating mode of the hybrid power system. The control system may also take into account whether a user has selected the electric-only power mode. The control system may also control the operations of one or more components of the hybrid vehicle while operating in one of the operating modes.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: July 2, 2013
    Assignee: BYD Co. Ltd.
    Inventors: HongBing Luo, XuGuang Zhou, XiaoHua Tang, XinXin Zhang, Ting Luo
  • Patent number: 8474556
    Abstract: A hybrid power output system for outputting the power to the wheel driving shaft, including and engine, a first motor, a second motor, a third motor, a battery, a first clutch, a second clutch, and a third clutch, wherein the first motor and the second motor are connected electrically with the battery, and the third motor is connected electrically with the battery or another battery; the engine is connected to the first motor via the first clutch, and connected to the third motor via the third clutch; the first motor is connected to the second motor via the second clutch, and the second motor is connected to a wheel driving shaft. The hybrid power output system can reduce the response time of the vehicle, perfect power performance, save space, and reduce cost as well.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 2, 2013
    Assignee: BYD Co. Ltd.
    Inventors: Chuanfu Wang, Hongbin Luo, Xuguang Zhou, Huanguang Chen, Xiaohua Tang, Youchuan Song
  • Patent number: 8478467
    Abstract: A method and an apparatus for controlling output torque of a motor for an electric vehicle in uphill mode, the method comprises: detecting a tilt angle value U, a current vehicle speed value V and an accelerator-pedal travel value Gain of the vehicle, determining whether the vehicle is in uphill mode or not, and if the result is positive, then calculating a minimum torque T1 required for preventing the vehicle from slipping backward under the tilt angle value 0 and the current vehicle speed value V, obtaining a maximum output torque T2, calculating an output torque T of the motor based on T1, T2 and Gain, and controlling the motor to output the calculated output torque T. With the method and apparatus in accordance with the present invention, when the electric vehicle is in uphill mode, even if the accelerator-pedal travel value is zero, the vehicle will not slip backward.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: July 2, 2013
    Assignee: BYD Co. Ltd.
    Inventor: Xiaohua Tang
  • Patent number: 8424623
    Abstract: A hybrid power system includes an engine, a clutch, a transmission, a motor and an energy storage device. The motor is connected to the energy storage device and the engine is connected to the input shaft of the transmission by the clutch. The output shaft of the transmission is operatively coupled with the output shaft of the motor to provide a coupled power output.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 23, 2013
    Assignee: BYD Co. Ltd.
    Inventor: Xiaohua Tang
  • Patent number: 8408342
    Abstract: The present invention discloses a hybrid power driving system, comprising: an engine, a clutch, a first shaft, a second shaft disposed parallel to the first shaft, a motor, an energy storage device, and an output gear. The engine may be connected with the first shaft via the clutch. The motor is connected with the second shaft directly or indirectly, and is electrically connected with the energy storage device. The first shaft has a first gear, a second gear and a first synchronizer, in which the first gear and the second gear are mounted on the first shaft via bearings respectively, and the first synchronizer is selectively engaged with the first gear or the second gear. The second shaft may have a third gear, a fourth gear and a second synchronizer, in which the third gear may be mounted on the second shaft via a bearing. The fourth gear may be fixed to the second shaft. And the second synchronizer may be selectively engaged with the third gear or the fourth gear.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: April 2, 2013
    Assignee: BYD Company Ltd.
    Inventors: Chuanfu Wang, Hongbin Luo, Wei Chen, Yi Ren, Xiaohua Tang, Haibin Lan
  • Patent number: 8362643
    Abstract: The present invention provides a battery-based grid energy storage for balancing the load of an power grid, wherein the energy storage comprises: a battery array; a bi-directional inverter unit; the bi-directional inverter system is configured to charge battery array using power from the power grid, or conversely, to transmit power from battery array to the power grid; a monitor system configured to detect the load, frequency and phase of the power grid, and control the bi-directional inverter system to charge battery array using power form the power grid, or conversely, transmits power from battery array to the power grid in accordance with the frequency and phase of the power grid so as to balance the load of the power grid, and meet the requirements during peak hours of electric power consumption.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: January 29, 2013
    Assignee: BYD Company Ltd.
    Inventors: Hongbin Luo, Yunhao Liao, Zifeng Zhang, Yinghui Wang, Linwang Deng, Donghong Chen, Shaowen Yin, Xiaohua Tang
  • Patent number: 8346446
    Abstract: A clutchless transmission apparatus and control method thereof. The transmission apparatus comprises a motor (10) and a transmission (20), said motor (10) is connected to said transmission (20) and supplies power to said transmission (20) via an input shaft of the transmission (20), wherein said apparatus further comprises a control device (30), which is electrically connected to said motor (10) and said transmission (20), wherein said control device (30) is configured to determine whether a gear-position shifting is required based on rotation speed of said transmission (20), if a gear-position shifting is required, regulates torque of said motor (10) to control said transmission (20) to disengage, and then regulates the rotation speed of said motor (10) based on the rotation speed of said transmission (20) to control said transmission (20) to engage for shifting gear-position.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: January 1, 2013
    Assignee: BYD Co. Ltd.
    Inventors: Kai Liu, Jian Gong, Xuguang Zhou, Bo Zu, Guangming Yang, Axi Qi, Xiaohua Tang, Bo Zhou, Xunjin Xu
  • Patent number: 8346417
    Abstract: The present invention discloses a method and apparatus for controlling a motor for an electric vehicle. The method and apparatus calculates the current acceleration ? of the motor according to the detected rotor position values in real-time, and if the current acceleration ? is greater than a predetermined forward acceleration ?0, the output torque of the motor is decreased. If the acceleration ? is less than a predetermined backward acceleration ?1, then the output torque of the motor is decreased. Thus, when the vehicle travels from a normal road surface to a smooth road surface, the decrease or increase output torque may suppress the abrupt speed variations.
    Type: Grant
    Filed: December 25, 2007
    Date of Patent: January 1, 2013
    Assignee: Byd Co. Ltd.
    Inventors: Xiaohua Tang, Ming Yu, Xuguang Zhou, Jian Gong, Nan Liu, Guangming Yang