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).
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Publication number: 20240034297Abstract: 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: ApplicationFiled: October 11, 2023Publication date: February 1, 2024Applicants: ZHEJIANG GEELY HOLDING GROUP CO., LTD., GEELY AUTOMOBILE RESEARCH INSTITUTE (NINGBO) CO., LTDInventors: Xianjun YE, Ou RUAN
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Patent number: 10800248Abstract: 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: GrantFiled: July 13, 2017Date of Patent: October 13, 2020Assignee: BYD COMPANY LIMITEDInventors: Ou Ruan, Zhen Zhai, Fei Wu, Youbin Xu
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Patent number: 10391851Abstract: 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: GrantFiled: July 13, 2017Date of Patent: August 27, 2019Assignee: BYD COMPANY LIMITEDInventors: Ou Ruan, Zhen Zhai, Youbin Xu, Fei Wu
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Patent number: 10099690Abstract: 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: GrantFiled: September 5, 2014Date of Patent: October 16, 2018Assignee: BYD COMPANY LIMITEDInventors: Jinlong Wang, Hao Chen, Ou Ruan
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Patent number: 10077040Abstract: 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: GrantFiled: September 3, 2014Date of Patent: September 18, 2018Assignee: BYD COMPANY LIMITEDInventors: Hao Chen, Ou Ruan
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Patent number: 10077039Abstract: 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: GrantFiled: September 3, 2014Date of Patent: September 18, 2018Assignee: BYD COMPANY LIMITEDInventors: Hao Chen, Ou Ruan
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Patent number: 10017174Abstract: 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: GrantFiled: September 5, 2014Date of Patent: July 10, 2018Assignee: BYD COMPANY LIMITEDInventors: Jinlong Wang, Hao Chen, Ou Ruan
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Patent number: 10011264Abstract: 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: GrantFiled: September 3, 2014Date of Patent: July 3, 2018Assignee: BYD COMPANY LIMITEDInventors: Hao Chen, Ou Ruan
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Patent number: 9902291Abstract: 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: GrantFiled: September 5, 2014Date of Patent: February 27, 2018Assignee: BYD COMPANY LIMITEDInventors: Hua Cheng, Hao Chen, Ou Ruan
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Publication number: 20170305260Abstract: 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: ApplicationFiled: July 13, 2017Publication date: October 26, 2017Inventors: OU RUAN, ZHEN ZHAI, FEI WU, YOUBIN XU
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Publication number: 20170305257Abstract: 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: ApplicationFiled: July 13, 2017Publication date: October 26, 2017Inventors: OU RUAN, ZHEN ZHAI, YOUBIN XU, FEI WU
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Patent number: 9718457Abstract: 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: GrantFiled: September 5, 2014Date of Patent: August 1, 2017Assignee: BYD Company LimitedInventors: Hao Chen, Ou Ruan
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Publication number: 20170036662Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided.Type: ApplicationFiled: September 3, 2014Publication date: February 9, 2017Inventors: Hao CHEN, Ou RUAN
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Publication number: 20170001624Abstract: 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: ApplicationFiled: September 5, 2014Publication date: January 5, 2017Inventors: Jinlong WANG, Hao CHEN, Ou RUAN
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Publication number: 20160221571Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided.Type: ApplicationFiled: September 3, 2014Publication date: August 4, 2016Inventors: Hao CHEN, Ou RUAN
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Publication number: 20160221570Abstract: A control system of a hybrid electrical vehicle and a control method for a hybrid electrical vehicle are provided.Type: ApplicationFiled: September 3, 2014Publication date: August 4, 2016Inventors: Hao CHEN, Ou RUAN
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Publication number: 20160221569Abstract: 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: ApplicationFiled: September 5, 2014Publication date: August 4, 2016Inventors: Hao CHEN, Ou RUAN
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Publication number: 20160221576Abstract: 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: ApplicationFiled: September 5, 2014Publication date: August 4, 2016Applicant: BYD COMPANY LIMITEDInventors: Jinlong WANG, Hao CHEN, Ou RUAN
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Publication number: 20160221469Abstract: 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: ApplicationFiled: September 5, 2014Publication date: August 4, 2016Inventors: Hua CHENG, Hao CHEN, Ou RUAN
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Patent number: 8931371Abstract: 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: GrantFiled: May 27, 2011Date of Patent: January 13, 2015Assignee: BYD Company LimitedInventors: Shibin Xie, Ou Ruan, Zhen Zhai, Ping Zhao