Patents by Inventor Ou Ruan

Ou Ruan 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: 20240034297
    Abstract: Disclosed are a bus current control method, a device, a system and a storage medium. The method includes: obtaining a data set including a motor speed corresponding to a current time point, an actual current and an actual torque; determining a limit current at the current time point according to the motor speed; in response to the limit current being less than the actual current, determining a deviation value at the current time point according to the limit current and the actual current; determining a target requested torque based on the deviation value and the actual torque; and determining the bus current according to the target requested torque.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 1, 2024
    Applicants: ZHEJIANG GEELY HOLDING GROUP CO., LTD., GEELY AUTOMOBILE RESEARCH INSTITUTE (NINGBO) CO., LTD
    Inventors: Xianjun YE, Ou RUAN
  • Patent number: 10800248
    Abstract: A transmission unit includes: input shafts; output shafts; an output unit fitted over one of the output shafts; output gears fixed on other output shafts; a generator gear fixed on one of the output shafts; an output unit synchronizer disposed on one of the output shafts and at least configured to engage with the output unit; a motor power shaft gear fixed on a motor power shaft and configured to rotate together with the generator gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 13, 2020
    Assignee: BYD COMPANY LIMITED
    Inventors: Ou Ruan, Zhen Zhai, Fei Wu, Youbin Xu
  • Patent number: 10391851
    Abstract: A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 27, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Ou Ruan, Zhen Zhai, Youbin Xu, Fei Wu
  • Patent number: 10099690
    Abstract: A hybrid electrical vehicle and a method for cruising control of the same are provided. The vehicle includes: a transmission device (1) connected with wheels (2a, 2b) of the hybrid electrical vehicle; an engine (3) and a gearbox (4), the engine (3) being connected with the transmission device (1) via the gearbox (4); an electric motor (5) and a gear reducer (6), the electric motor (5) being connected with the transmission device (1) via the gear reducer (6); a power battery (7) configured to supply power to the electric motor (5); and a control module configured to start the engine (3) and the electric motor (5) according to a working mode selected by a user from a plurality of working modes, and to control the vehicle to switch between the plurality of working modes according to a driving state of the vehicle and/or a working state of the power battery.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 16, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Jinlong Wang, Hao Chen, Ou Ruan
  • Patent number: 10077040
    Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided. The control system of the hybrid electric vehicle includes: a transmission device connected with wheels of the hybrid electrical vehicle; an engine power subsystem connected with the transmission device; a motor power subsystem connected with the transmission device; and a control module configured to control the hybrid electrical vehicle to operate in a hybrid electrical-economical mode by controlling the engine power subsystem and the motor power subsystem.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: September 18, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Hao Chen, Ou Ruan
  • Patent number: 10077039
    Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided. The control system of the hybrid electric vehicle includes: a transmission device connected with wheels of the hybrid electrical vehicle; an engine power subsystem connected with the transmission device; a motor power subsystem connected with the transmission device; and a control module configured to control the hybrid electrical vehicle to work in a hybrid electrical-economical mode by controlling the engine power subsystem and the motor power subsystem, and to control the hybrid electrical vehicle to work in a first manner.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: September 18, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Hao Chen, Ou Ruan
  • Patent number: 10017174
    Abstract: A control system for a hybrid electric vehicle comprises a transmission system configured to drive wheels, an engine power subsystem connected to the transmission system, a motor power subsystem connected to the transmission system and a control module. When vehicle's electrical power is on, the control module is configured to control operating mode of the hybrid electric vehicle through the engine power subsystem and the motor power subsystem. The operating mode comprises HEV-eco mode and HEV-s mode. When the hybrid electric vehicle operates in HEV-eco and the hybrid electric vehicle operates at low power or when the hybrid electric vehicle operates in HEV-s mode and when the vehicle speed is zero, the control module enables the hybrid electric vehicle to operate by idle start-stop strategy.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: July 10, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Jinlong Wang, Hao Chen, Ou Ruan
  • Patent number: 10011264
    Abstract: A control system of a hybrid electrical vehicle includes: a transmission device; an engine power subsystem and a motor power subsystem connected with the transmission device; and a control module configured to control the hybrid electrical vehicle to operate in a hybrid electrical-economical mode by controlling the engine power subsystem and the motor power subsystem, and to control the hybrid electrical vehicle to operate in a first manner if a current slope detected by the hybrid electrical vehicle is less than or equal to a minimum slope and a current electric quantity of a power battery of the motor power subsystem is less than or equal to a first electric quantity threshold, or if the current slope is less than or equal to the minimum slope and a maximum allowable discharge power of the power battery is less than or equal to a first power threshold.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 3, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Hao Chen, Ou Ruan
  • Patent number: 9902291
    Abstract: A sliding feedback control system of a vehicle is provided. The system includes: an electric motor; a power battery; a battery manager connected with the power battery, and configured to obtain a maximum charging power of the power battery; and a motor controller connected with the electric motor, and configured to obtain maximum feedback torque values of the motor controller and the electric motor, to convert the maximum charging power of the power battery into a maximum feedback torque value of the power battery, to determine a minimum of the maximum feedback torque values as a first feedback torque value, to obtain a second feedback torque value, and to determine a final feedback torque value of the electric motor as a minimum of the first and second feedback torque values, such that the electric motor controls the vehicle to perform the sliding feedback operation according to the final feedback torque value.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: February 27, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Hua Cheng, Hao Chen, Ou Ruan
  • Publication number: 20170305260
    Abstract: A transmission unit includes: input shafts; output shafts; an output unit fitted over one of the output shafts; output gears fixed on other output shafts; a generator gear fixed on one of the output shafts; an output unit synchronizer disposed on one of the output shafts and at least configured to engage with the output unit; a motor power shaft gear fixed on a motor power shaft and configured to rotate together with the generator gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Inventors: OU RUAN, ZHEN ZHAI, FEI WU, YOUBIN XU
  • Publication number: 20170305257
    Abstract: A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Inventors: OU RUAN, ZHEN ZHAI, YOUBIN XU, FEI WU
  • Patent number: 9718457
    Abstract: A hybrid electrical vehicle and a method for controlling a hybrid electrical vehicle are provided. The vehicle includes: a transmission device (1) connected with wheels (2a and 2b) of the hybrid electrical vehicle; an engine (3) and a gearbox (4), wherein the engine (3) is connected with the transmission device (1) via the gearbox (4); an electric motor (5) and a gear reducer (6), wherein the electric motor (5) is connected with the transmission device (1) via the gear reducer (6); a power battery (7) configured to supply power to the electric motor (5); and a control module configured to start the engine (3) and the electric motor (5) according to a working mode selected by a user from a plurality of working modes, and to control the vehicle to switch between the plurality of working modes according to a driving state of the vehicle and/or a working state of the power battery.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: August 1, 2017
    Assignee: BYD Company Limited
    Inventors: Hao Chen, Ou Ruan
  • Publication number: 20170036662
    Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided.
    Type: Application
    Filed: September 3, 2014
    Publication date: February 9, 2017
    Inventors: Hao CHEN, Ou RUAN
  • Publication number: 20170001624
    Abstract: A control system for a hybrid electric vehicle comprises a transmission system configured to drive wheels, an engine power subsystem connected to the transmission system, a motor power subsystem connected to the transmission system and a control module. When vehicle's electrical power is on, the control module is configured to control operating mode of the hybrid electric vehicle through the engine power subsystem and the motor power subsystem. The operating mode comprises HEV-eco mode and HEV-s mode. When the hybrid electric vehicle operates in HEV-eco and the hybrid electric vehicle operates at low power or when the hybrid electric vehicle operates in HEV-s mode and when the vehicle speed is zero, the control module enables the hybrid electric vehicle to operate by idle start-stop strategy.
    Type: Application
    Filed: September 5, 2014
    Publication date: January 5, 2017
    Inventors: Jinlong WANG, Hao CHEN, Ou RUAN
  • Publication number: 20160221571
    Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided.
    Type: Application
    Filed: September 3, 2014
    Publication date: August 4, 2016
    Inventors: Hao CHEN, Ou RUAN
  • Publication number: 20160221570
    Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided.
    Type: Application
    Filed: September 3, 2014
    Publication date: August 4, 2016
    Inventors: Hao CHEN, Ou RUAN
  • Publication number: 20160221569
    Abstract: A hybrid electrical vehicle and a method for controlling a hybrid electrical vehicle are provided. The vehicle includes: a transmission device (1) connected with wheels (2a and 2b) of the hybrid electrical vehicle; an engine (3) and a gearbox (4), wherein the engine (3) is connected with the transmission device (1) via the gearbox (4); an electric motor (5) and a gear reducer (6), wherein the electric motor (5) is connected with the transmission device (1) via the gear reducer (6); a power battery (7) configured to supply power to the electric motor (5); and a control module configured to start the engine (3) and the electric motor (5) according to a working mode selected by a user from a plurality of working modes, and to control the vehicle to switch between the plurality of working modes according to a driving state of the vehicle and/or a working state of the power battery.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 4, 2016
    Inventors: Hao CHEN, Ou RUAN
  • Publication number: 20160221576
    Abstract: A hybrid electrical vehicle and a method for cruising control of the same are provided. The vehicle includes: a transmission device (1) connected with wheels (2a, 2b) of the hybrid electrical vehicle; an engine (3) and a gearbox (4), the engine (3) being connected with the transmission device (1) via the gearbox (4); an electric motor (5) and a gear reducer (6), the electric motor (5) being connected with the transmission device (1) via the gear reducer (6); a power battery (7) configured to supply power to the electric motor (5); and a control module configured to start the engine (3) and the electric motor (5) according to a working mode selected by a user from a plurality of working modes, and to control the vehicle to switch between the plurality of working modes according to a driving state of the vehicle and/or a working state of the power battery.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 4, 2016
    Applicant: BYD COMPANY LIMITED
    Inventors: Jinlong WANG, Hao CHEN, Ou RUAN
  • Publication number: 20160221469
    Abstract: A sliding feedback control system of a vehicle is provided. The system includes: an electric motor; a power battery; a battery manager connected with the power battery, and configured to obtain a maximum charging power of the power battery; and a motor controller connected with the electric motor, and configured to obtain maximum feedback torque values of the motor controller and the electric motor, to convert the maximum charging power of the power battery into a maximum feedback torque value of the power battery, to determine a minimum of the maximum feedback torque values as a first feedback torque value, to obtain a second feedback torque value, and to determine a final feedback torque value of the electric motor as a minimum of the first and second feedback torque values, such that the electric motor controls the vehicle to perform the sliding feedback operation according to the final feedback torque value.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 4, 2016
    Inventors: Hua CHENG, Hao CHEN, Ou RUAN
  • Patent number: 8931371
    Abstract: A hybrid power driving system includes an engine including a crankshaft; and a dual clutch transmission system coupled to the crankshaft. The dual clutch transmission system includes a first clutch, a second clutch, and a transmission. Both the first and second clutches are connected with the crankshaft. The transmission includes a first input shaft connected with the first clutch, a second input shaft connected with the second clutch, shifting gear sets, where each shifting gear set includes at least a stationary gear and a free gear; and an output shaft having one end coupled with a differential. The other end of the output shaft is connected with a driving electric motor. The driving electric motor drives the output shaft directly.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: January 13, 2015
    Assignee: BYD Company Limited
    Inventors: Shibin Xie, Ou Ruan, Zhen Zhai, Ping Zhao