Patents by Inventor Daolin LI
Daolin LI 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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Patent number: 11964591Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and a maximum electric braking exit speed; and; controlling, if the deceleration required by braking of the vehicle changes to zero, the vehicle to unload the electric braking torque when the current vehicle speed is less than the maximum electric braking exit speed. A braking device for a vehicle and a vehicle are further provided.Type: GrantFiled: August 27, 2020Date of Patent: April 23, 2024Assignee: BYD COMPANY LIMITEDInventors: Dong Ma, Lu Wang, Daolin Li
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Patent number: 11827197Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current gradient and a current vehicle speed of the vehicle; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the braking torque required by the vehicle, the deceleration required by braking, and the current gradient. A braking device for a vehicle and a vehicle are further provided.Type: GrantFiled: August 27, 2020Date of Patent: November 28, 2023Assignee: BYD COMPANY LIMITEDInventors: Daolin Li, Lu Wang, Dong Ma
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Patent number: 11752987Abstract: A vehicle and a braking method and a device therefor are provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling the vehicle to output an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and an electric braking exit protection speed; and calculating an electric braking exit speed according to the braking torque required by the vehicle and the deceleration required by braking, and controlling the vehicle to unload the electric braking torque when the current vehicle speed is less than a larger one of the electric braking exit speed and the electric braking exit protection speed.Type: GrantFiled: August 27, 2020Date of Patent: September 12, 2023Assignee: BYD COMPANY LIMITEDInventors: Dong Ma, Lu Wang, Daolin Li
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Publication number: 20230001799Abstract: A vehicle power supply device is provided. The vehicle power supply device includes: a fixed base; a scissor-fork lifting mechanism, where the scissor-fork lifting mechanism is configured to be driven by a drive device to ascend or descend; and the scissor-fork lifting mechanism includes at least one scissor-fork swing rod set, the scissor-fork swing rod set includes at least one pair of swing rods, each pair of swing rods includes two swing rods that are cross-arranged and are hinged with each other, and two swing rods in a pair of swing rods that is closest to the fixed base are separately mounted on the fixed base; and a power supply head, where the power supply head is mounted on two swing rods in a pair of swing rods that is farthest from the fixed base, and the power supply head is driven by the scissor-fork lifting mechanism to ascend or descend.Type: ApplicationFiled: October 30, 2020Publication date: January 5, 2023Inventors: Kun QIU, Pengfei LI, Ziwei ZENG, Chaorui WU, Daolin LI
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Publication number: 20220388404Abstract: A driving control method and apparatus for a vehicle, and a vehicle are provided, and relate to the field of vehicle control. The vehicle includes at least two carriages, and the driving control method includes the following steps: obtaining battery level information of a power battery corresponding to each of the carriages; obtaining at least one of a level allocated to each carriage or a payload allocated to each carriage according to the battery level information of the power battery corresponding to each carriage; and obtaining an output torque of each carriage according to the at least one of the level allocated to each carriage or the payload allocated to each carriage.Type: ApplicationFiled: September 23, 2020Publication date: December 8, 2022Inventors: Qiang WAN, Hao LU, Lu WANG, Daolin LI
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Publication number: 20220340013Abstract: A braking method includes: obtaining a first state information of the vehicle, which includes a vehicle mass and a deceleration required by braking; calculating a braking torque according to the first state information, and controlling the vehicle to output an electric braking torque according to the braking torque; obtaining a current vehicle speed and a mechanical braking application delay time; calculating an electric braking exit speed according to the braking torque required by the vehicle and the deceleration required by braking; calculating a mechanical braking application speed according to the mechanical braking application delay time, the deceleration required by braking, and the electric braking exit speed; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the electric braking exit speed, and the mechanical braking application speed.Type: ApplicationFiled: August 27, 2020Publication date: October 27, 2022Inventors: Dong MA, Lu WANG, Daolin LI
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Publication number: 20220340108Abstract: A vehicle and a braking method and a device therefor are provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling the vehicle to output an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and an electric braking exit protection speed; and calculating an electric braking exit speed according to the braking torque required by the vehicle and the deceleration required by braking, and controlling the vehicle to unload the electric braking torque when the current vehicle speed is less than a larger one of the electric braking exit speed and the electric braking exit protection speed.Type: ApplicationFiled: August 27, 2020Publication date: October 27, 2022Inventors: Dong MA, Lu WANG, Daolin LI
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Publication number: 20220340107Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current gradient and a current vehicle speed of the vehicle; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the braking torque required by the vehicle, the deceleration required by braking, and the current gradient. A braking device for a vehicle and a vehicle are further provided.Type: ApplicationFiled: August 27, 2020Publication date: October 27, 2022Inventors: Daolin LI, Lu WANG, Dong MA
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Publication number: 20220332195Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and a maximum electric braking exit speed; and; controlling, if the deceleration required by braking of the vehicle changes to zero, the vehicle to unload the electric braking torque when the current vehicle speed is less than the maximum electric braking exit speed. A braking device for a vehicle and a vehicle are further provided.Type: ApplicationFiled: August 27, 2020Publication date: October 20, 2022Inventors: Dong MA, Lu WANG, Daolin LI
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Patent number: 11465508Abstract: This disclosure discloses a braking-recovery system and method for a train, and a train. The system includes: a traction network, a train, and an energy storage power station. The energy storage power station is connected to the traction network, the energy storage power station includes a second controller, and the second controller controls the energy storage power station according to the voltage of the traction network to perform charging or discharging.Type: GrantFiled: February 28, 2017Date of Patent: October 11, 2022Assignee: BYD COMPANY LIMITEDInventors: Lin Ren, Daolin Li, Wengang Luo
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Patent number: 11414106Abstract: An apparatus includes a suspension system, a bogie frame with the same, and a rail vehicle. The suspension system includes a vehicle body connecting seat, an elastic component, a transverse damper and a vertical damper. The vehicle body connecting seat is positioned above the elastic component and is connected to the elastic component, and the transverse damper and the vertical damper are respectively hinged to the vehicle body connecting seat and are perpendicular to each other.Type: GrantFiled: February 28, 2017Date of Patent: August 16, 2022Assignee: BYD COMPANY LIMITEDInventors: Lin Ren, Daolin Li, Zhicheng Tan
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Patent number: 11396927Abstract: A speed reducer, a power system, a straddle-type rail train, and a rail transport system are disclosed. The speed reducer includes: a box body; a speed-reducing mechanism, disposed in the box body; and a support shaft, a first end of the support shaft being supported on the box body, and a second end of the support shaft being connected to a high-speed end of the speed-reducing mechanism. The speed reducer according to the present disclosure achieves a more stable connection between a drive shaft and a speed-reducing mechanism and a more stable power transmission.Type: GrantFiled: February 28, 2017Date of Patent: July 26, 2022Assignee: BYD COMPANY LIMITEDInventors: Jintao Zhang, Lin Ren, Daolin Li, Xin Zhang, Jianjian Yuan, Cailin Fu, Hongbin Luo
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Patent number: 11377129Abstract: A traction mechanism, a bogie assembly and a straddle-type monorail vehicle are disclosed. The traction mechanism comprises: a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, the traction connecting rod being suitable to be hinged to a bogie frame, a first end of the first crank being hinged to the traction connecting rod, a second end of the first crank being fixedly connected to the transmission shaft, and the transmission shaft being suitable to be rotatably connected to a vehicle body; and a traction crank, both ends of the traction crank being suitable to be respectively hinged to the bogie frame and the vehicle body, wherein the first end of the first crank is away from the traction crank. The traction mechanism of the present disclosure has a simple and compact structure, and a transmission path of a traction force is short.Type: GrantFiled: February 28, 2017Date of Patent: July 5, 2022Assignee: BYD COMPANY LIMITEDInventors: Lin Ren, Daolin Li, Zhicheng Tan
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Patent number: 11312400Abstract: The disclosure discloses a coupler assembly and a straddle type rail train with the same. The coupler assembly includes a mounting base, a buffering mechanism, a folding mechanism, and a coupler head, one end of the buffering mechanism is interconnected movably with the mounting base, the other end of the buffering mechanism is provided with a pull rod, the pull rod is provided with a limiting portion, one end of the folding mechanism is interconnected movably with the pull rod, the folding mechanism is provided with a locking part, the locking part movably cooperates with the limiting portion to lock or release the pull rod, and the pull rod is fixed at a stretching position when the limiting portion is locked by the locking part, and is movable between a folding position and the stretching position when the limiting portion is released by the locking part; and one end of the coupler head is interconnected with the other end of the folding mechanism.Type: GrantFiled: June 19, 2017Date of Patent: April 26, 2022Assignee: BYD COMPANY LIMITEDInventors: Zhihong Xiao, Daolin Li, Zhicheng Tan
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Publication number: 20220081012Abstract: A traction mechanism, a bogie assembly and a straddle-type monorail vehicle are disclosed. The traction mechanism comprises: a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, the traction connecting rod being suitable to be hinged to a bogie frame, a first end of the first crank being hinged to the traction connecting rod, a second end of the first crank being fixedly connected to the transmission shaft, and the transmission shaft being suitable to be rotatably connected to a vehicle body; and a traction crank, both ends of the traction crank being suitable to be respectively hinged to the bogie frame and the vehicle body, wherein the first end of the first crank is away from the traction crank. The traction mechanism of the present disclosure has a simple and compact structure, and a transmission path of a traction force is short.Type: ApplicationFiled: February 28, 2017Publication date: March 17, 2022Inventors: Lin REN, Daolin LI, Zhicheng TAN
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Patent number: 11247703Abstract: The present disclosure provides a bogie assembly and a straddle-type monorail vehicle with the same. The bogie assembly comprises: a bogie frame; an electric assembly which is mounted on the bogie frame and comprises a traction motor, a gear reducer and a planetary wheel-side reducer, wherein the traction motor is connected with an input shaft of the gear reducer, and an output shaft of the gear reducer is connected with an input end of the planetary wheel-side reducer; and a running wheel which is mounted on the bogie frame, wherein an output end of the planetary wheel-side reducer is connected with a hub of the running wheel.Type: GrantFiled: February 28, 2017Date of Patent: February 15, 2022Assignee: BYD COMPANY LIMITEDInventors: Daolin Li, Zhicheng Tan
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Patent number: 11161530Abstract: A traction mechanism, a bogie assembly and a straddle-type monorail vehicle are disclosed. The traction mechanism comprises: a traction component, comprising a transmission shaft and a traction connecting rod, the transmission shaft and the traction connecting rod being connected, the transmission shaft being suitable to be rotatably connected to a vehicle body, and the traction connecting rod being suitable to be hinged to a bogie frame; and a traction crank, both ends of the traction crank being suitable to be respectively hinged to the bogie frame and the vehicle body. The traction mechanism of the present disclosure has a simple and compact structure, and a transmission path of a traction force is short. The traction mechanism is convenient to assemble and disassemble, occupies a small space, is wide in usage range, can be used for low-floor and high-floor vehicles, and is also applicable to a single-axle bogie, a double-axle bogie and a multi-axle bogie.Type: GrantFiled: February 28, 2017Date of Patent: November 2, 2021Assignee: BYD COMPANY LIMITEDInventors: Lin Ren, Daolin Li, Zhicheng Tan
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Patent number: 11155282Abstract: The present disclosure provides a bogie frame, a bogie assembly and a rail vehicle. The bogie frame includes a bogie body, the bogie body being substantially rectangular and including a first connecting beam, a second connecting beam, a third connecting beam and a fourth connecting beam which are sequentially connected end to end, where the first connecting beam is opposite to the third connecting beam, the second connecting beam is opposite to the fourth connecting beam, an electric assembly mounting groove is formed in the fourth connecting beam, the thickness of the fourth connecting beam is greater than the thickness of the second connecting beam, and the top wall of the first connecting beam and the top wall of the third connecting beam are connected between the top wall of the second connecting beam and the top wall of the fourth connecting beam in an arc shape.Type: GrantFiled: February 28, 2017Date of Patent: October 26, 2021Assignee: BYD COMPANY LIMITEDInventors: Daolin Li, Huiyue Liu, Zhicheng Tan, Qihua Feng
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Publication number: 20210309267Abstract: The present disclosure provides a suspension system, a bogie assembly with the same, and a rail vehicle. The suspension system includes a vehicle body connecting seat, an elastic component, a transverse damper and a vertical damper. The vehicle body connecting seat is positioned above the elastic component and is connected to the elastic component, and the transverse damper and the vertical damper are respectively hinged to the vehicle body connecting seat and are perpendicular to each other.Type: ApplicationFiled: February 28, 2017Publication date: October 7, 2021Inventors: Lin REN, Daolin LI, Zhicheng TAN
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Publication number: 20210285519Abstract: A speed reducer, a power system, a straddle-type rail train, and a rail transport system are disclosed. The speed reducer includes: a box body; a speed-reducing mechanism, disposed in the box body; and a support shaft, a first end of the support shaft being supported on the box body, and a second end of the support shaft being connected to a high-speed end of the speed-reducing mechanism. The speed reducer according to the present disclosure achieves a more stable connection between a drive shaft and a speed-reducing mechanism and a more stable power transmission.Type: ApplicationFiled: February 28, 2017Publication date: September 16, 2021Inventors: Jintao ZHANG, Lin REN, Daolin LI, Xin ZHANG, Jianjian YUAN, Cailin FU, Hongbin LUO