Patents by Inventor Yubo Lian

Yubo Lian 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: 20190299992
    Abstract: A power transmission system for a vehicle includes: a power source; a first motor generator unit; a speed change unit, where the speed change unit is suitable for being selectively power-coupled to the power source, the speed change unit includes a speed change unit output portion, and the speed change unit output portion is suitable for outputting power from at least one of the power source and the first motor generator unit; a system power output portion; and a mode conversion device, where the speed change unit output portion is power-coupled to or power-decoupled from the system power output portion through the mode conversion device, so that the mode conversion device is suitable for decelerating the power received from the speed change unit output portion and then outputting the decelerated power to the system power output portion.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 3, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU, Wei HUANG
  • Publication number: 20190291568
    Abstract: A power transmission system includes: a power source; a speed change unit, where the speed change unit is selectively power-coupled to the power source; a first motor generator unit; a system power output portion; and a mode conversion device, where the mode conversion device includes: a conversion device input portion and a conversion device output portion, the conversion device input portion outputs power from at least one of the power source and the first motor generator unit, the conversion device output portion is connected to an input end of the system power output portion, and the conversion device input portion is selectively power-coupled to the conversion device output portion; and when the conversion device input portion is power-coupled to the conversion device output portion, the rotational speed of the conversion device input portion is greater than or equal to the rotational speed of the conversion device output portion.
    Type: Application
    Filed: October 30, 2017
    Publication date: September 26, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU, Wei HUANG
  • Patent number: 10363806
    Abstract: A power transmission system for a vehicle and a vehicle including the same are provided.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 30, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Publication number: 20190225074
    Abstract: The present disclosure discloses a power drive system and a vehicle.
    Type: Application
    Filed: May 11, 2017
    Publication date: July 25, 2019
    Inventors: Yubo LIAN, Jianjian LIU, Heping LING, Zhen ZHAI, Youbin XU
  • Patent number: 10343525
    Abstract: The present disclosure discloses an electric vehicle, an active safety control system of an electric vehicle, and a control method of the active safety control system of an electric vehicle. The electric vehicle includes: multiple wheels, multiple motors, a wheel speed detection module, a steering wheel rotation angle sensor, a yaw rate sensor, and a battery pack. The active safety control system includes: an acquisition module, acquiring the wheel speed signal, the direction information, the yaw information, status information of the battery pack, and status information of the multiple motors; a status determining module, determining status of the electric vehicle; and a control module, generating a control instruction and delivering the control instruction to at least one motor.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 9, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Hongbin Luo, Jintao Zhang, Dongsheng Yang, Haijun Lv
  • Patent number: 10322718
    Abstract: A vehicle stability control system includes a signal collection sensor and a vehicle controller (10). The signal collection sensor is configured to collect a vehicle condition information parameter, and the vehicle controller (10) is configured to calculate a control yaw moment according to the vehicle condition information parameter. The control yaw moment is used to cancel a difference between an estimated yaw moment and an actual yaw moment. The vehicle controller (10) is further configured to determine according to the vehicle condition information parameter whether the vehicle (100) is in a stable region or a non-stable region in the case of tire blow-out, and allocate the control yaw moment to four wheels (101) according to a vehicle stability condition, thus implementing vehicle stability control. A vehicle stability control method and a vehicle (100) with the vehicle stability control system are also disclosed.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: June 18, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Heping Ling, Ning Wang, Yanfei Xiong, Ting Wen
  • Publication number: 20190168600
    Abstract: The present disclosure discloses a power drive system and a vehicle, the power drive system including: an engine; a transmission having a transmission power output portion; a first electric generator, the engine and the first electric generator being connected through the transmission by means of power coupling; and a differential having a differential power input portion and two differential power output portions, the differential power input portion being linked with the transmission power output portion, each of the differential power output portions being connected with a wheel on the same side, and a power engagement device being provided between one of the differential power output portions and the wheel on the same side.
    Type: Application
    Filed: May 11, 2017
    Publication date: June 6, 2019
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU
  • Patent number: 10272942
    Abstract: An auxiliary steering system (100) and method for an electric vehicle and the electric vehicle are disclosed. The system includes a detection component (6A) including a first electric motor (4) and a detection controller (6) configured to determine whether a steering assist device (2) is normal, to continue to determine whether the steering assist device (2) is normal if yes, and to control a drive rack (5A) of the first electric motor (4) to drive wheels (17) of the electric vehicle to return and to output a steering failure signal, a steering wheel torque signal and a direction signal if no; an electric motor controller (8); a second electric motor (14); and a vehicle controller (7). The electric motor controller (8) is further configured to control the second electric motor (14) to increase a drive torque for an outer front wheel (17), to brake an inner rear wheel (17), and to stop driving an inner front wheel (17) and an outer rear wheel (17).
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: April 30, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Heping Ling, Fanliang Meng, Ting Wen, Yanfei Xiong
  • Patent number: 10232839
    Abstract: The present disclosure discloses a vehicle and a braking feedback control method for the same. The braking feedback control method includes the following steps: detecting a current speed of a vehicle and a depth of a braking pedal of the vehicle; when the current speed of the vehicle is greater than a preset speed, the depth of the braking pedal is greater than 0, and an anti-lock braking system of the vehicle is in a non-working state, controlling the vehicle to enter a braking feedback control mode, where when the vehicle is in the braking feedback control mode, a required braking torque corresponding to the vehicle is obtained according to the depth of the braking pedal, and a braking torque of a first motor generator, a braking torque of a second motor generator, and a braking torque of basic braking performed on the vehicle are distributed according to the required braking torque.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: March 19, 2019
    Assignee: BYD Company Limited
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10227069
    Abstract: A method and a system for controlling a vehicle (100) with four-wheel drive are provided. The method includes: acquiring a vehicle condition information parameter by a vehicle condition information collector; obtaining a radius of turning circle to be reduced from a driver by a turning circle receiver (40); obtaining a controlling yaw moment corresponding to the radius of turning circle to be reduced according to the vehicle condition information parameter and the radius of turning circle to be reduced by a turning circle controller (11); and distributing the controlling yaw moment to four wheels (90) of the vehicle (100) according to an intensity level of the radius of turning circle to be reduced and the vehicle condition information parameter by the turning circle controller (11), such that the vehicle (100) turns circle.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 12, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Heping Ling, Fanliang Meng, Mingchuan Shi, Weiqiang Chen
  • Patent number: 10214092
    Abstract: A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes: an engine unit configured to generate a power; an input shaft; an output shaft configured to transfer at least partial of the power from the input shaft; an output unit configured to rotate differentially relative to the output shaft; a synchronizer disposed on the output shaft and configured to selectively engage with the output unit such that the output unit rotates synchronously with the output shaft, and the output unit is configured to output power to drive one or more front and/or rear wheels of the vehicle; a first motor generator configured to directly or indirectly couple with one of the input shaft and the output shaft for power transmission; and a second motor generator configured to drive one or more front or rear wheels of the vehicle.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: February 26, 2019
    Assignee: BYD Company Limited
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10202114
    Abstract: The present disclosure discloses an electric vehicle and an active safety control system and method thereof. The system includes: a wheel speed detection module configured to detect a wheel speed to generate a wheel speed signal; a steering wheel rotation angle sensor and a yaw rate sensor module, configured to detect state information of the electric vehicle; a motor controller; and an active safety controller configured to receive the wheel speed signal and state information, obtain state information of a battery pack and state information of four motors, obtain a first side slip signal or a second side slip signal according to the wheel speed signal, the state information, the battery pack and the four motors, and according to the first side slip signal or the second side slip signal, control four hydraulic brakes of the electric vehicle and control the four motors by using the motor controller.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: February 12, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Hongbin Luo, Jintao Zhang, Dongsheng Yang
  • Patent number: 10166853
    Abstract: A transmission unit includes: input shafts, each of the input shafts being provided with a shift driving gear thereon; output shafts, each of the output shafts being provided with a shift driven gear configured to mesh with a corresponding shift driving; a motor power shaft configured to rotate together with one of the output shafts; and an output unit configured to rotate with one of the output shafts at different speeds and configured to selectively engage with one of the output shafts so as to rotate together with one of the output shafts. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 1, 2019
    Assignee: BYD Company Limited
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10166973
    Abstract: The present disclosure discloses a shifting control method for a hybrid vehicle. The shifting control method includes: detecting operating parameters of the hybrid vehicle, where the operating parameters of the hybrid vehicle includes vehicle speed, vehicle acceleration as reflected from an accelerator-pedal signal and a current gear of the hybrid vehicle; determining a work mode of the hybrid vehicle; performing speed adjustment and shifting control to the first motor-generator according to a work mode and the operating parameters of the hybrid vehicle to implement shifting control of the hybrid vehicle, where the work mode includes an electric-vehicle mode and a hybrid-electric-vehicle mode. The method considers performing speed adjustment and shifting control under various working conditions. This improves smoothness and comfort of the vehicle and enlarges the use scope. The present disclosure further discloses a power transmission system of a hybrid vehicle and a hybrid vehicle.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: January 1, 2019
    Assignee: BYD Company Limited
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Publication number: 20180312146
    Abstract: An active safety control system and method for a vehicle include: a plurality of motors arranged on a plurality of wheels; a plurality of brakes arranged on the plurality of wheels; a hydraulic braking device; a pedal detection device, used for detecting pedal signals of the vehicle; a motor state detection device, used for detecting the states of the plurality of motors; a plurality of wheel speed detection devices, arranged on the plurality of wheels, used for detecting speeds of the wheels and generating wheel speed detection signals; a power battery, connected with the plurality of motors respectively; and a control device, used for obtaining braking torques according to the pedal signals and the wheel speed detection signals, determining a corresponding braking mode according to the states of motors, and controlling the brakes, the motors and the hydraulic braking device according to the braking mode and the braking torques.
    Type: Application
    Filed: September 26, 2016
    Publication date: November 1, 2018
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Hongbin LUO, Jintao ZHANG, Dongsheng YANG
  • Publication number: 20180298994
    Abstract: The present disclosure discloses a power-driven system and a vehicle. The power-driven system includes: a power coupling device, where the power coupling device includes a first sun gear, a first planet carrier, a first ring gear, a second sun gear, a second planet carrier, a second ring gear, and a power transmission part; a power source; a first motor generator and a second motor generator; and a first braking device directly or indirectly braking the power transmission part. The power transmission part is coaxially linked to the first sun gear and the second sun gear. The power source is configured to selectively connect to the power transmission part. The first motor generator is linked to the first ring gear, and the second motor generator is linked to the second ring gear.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Inventors: YUBO LIAN, HEPING LING, ZHEN ZHAI, YOUBIN XU, FENG ZHENG
  • Publication number: 20180297585
    Abstract: The present disclosure discloses an electric vehicle and an active safety control system and method thereof. The system includes: a wheel speed detection module configured to detect a wheel speed to generate a wheel speed signal; a steering wheel rotation angle sensor and a yaw rate sensor module, configured to detect state information of the electric vehicle; a motor controller; and an active safety controller configured to receive the wheel speed signal and state information, obtain state information of a battery pack and state information of four motors, obtain a first side slip signal or a second side slip signal according to the wheel speed signal, the state information, the battery pack and the four motors, and according to the first side slip signal or the second side slip signal, control four hydraulic brakes of the electric vehicle and control the four motors by using the motor controller.
    Type: Application
    Filed: October 26, 2016
    Publication date: October 18, 2018
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Hongbin LUO, Jintao ZHANG, Dongsheng YANG
  • Patent number: 10081351
    Abstract: The present invention provides a method for controlling an engine unit in a vehicle. The vehicle includes an engine unit, a transmission unit adapted to selectively couple with the engine unit and also configured to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit, a power switching device, a second motor generator configured to drive at least one of front and rear wheels, and a power battery that is respectively connected to the first motor generator and the second motor generator. The method includes: acquiring an operating mode of a vehicle and an operating parameter of the vehicle; and controlling an engine unit according to an operating parameter and an operating mode to start or stop.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 25, 2018
    Assignee: BYD COMPANY LIMITED
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: D829608
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: October 2, 2018
    Assignee: BYD Company Limited
    Inventors: Yubo Lian, Leyang Li, Wenquan Tang, Changshu Shangguan, Binggen Zhao, Peisong Xie, Fei Wang
  • Bus
    Patent number: D837690
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: January 8, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Wenquan Tang, Yuncheng Zhang, Lei Yi, Jun Yao, Yichao Wu