Patents by Inventor Zhen Zhai

Zhen Zhai 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).

  • Patent number: 10760662
    Abstract: A power-driven system includes: a differential; a power output shaft configured to link to a power input end of the differential; multiple input shafts; and a first motor generator. The differential includes a first planet carrier, a second planet carrier, a first planet gear, a second planet gear, a first ring gear, and a second ring gear. The first planet gear and the second planet gear are respectively disposed on the first planet carrier and the second planet carrier and respectively meshed with the first ring gear and the second ring gear. One input shaft of the multiple input shafts is configured to selectively link to the power output shaft, and another input shaft of the multiple input shafts is configured to link to the power output shaft. The first motor generator is configured to link to the one input shaft of the multiple input shafts.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 1, 2020
    Assignee: BYD COMPANY LIMITED
    Inventors: Yubo Lian, Heping Ling, Zhen Zhai, Feng Zheng, Youbin Xu
  • Publication number: 20200124154
    Abstract: The present specification discloses a differential mechanism and a vehicle. The differential mechanism includes a shell. A left half axle gear, a right half axle gear, a planet wheel and a planet wheel axle are disposed in the shell. The planet wheel is rotatably mounted on the planet wheel axle and meshes with the left half axle gear and the right half axle gear. A power engagement device includes a first engagement portion and a second engagement portion. The first engagement portion is connected with the left half axle gear or the right half axle gear, and the second engagement portion rotates synchronously with and moves axially relative to the shell. An engagement portion drive device includes a drive pin and a drive portion. The drive portion is configured to drive the drive pin to drive the second engagement portion close to the first engagement portion along an axial direction.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 23, 2020
    Applicant: BYD COMPANY LIMITED
    Inventors: Heping LING, Zhen ZHAI, Youbin XU, Changan HUANG
  • Publication number: 20200023733
    Abstract: The present disclosure discloses a power-drive system for a vehicle and a vehicle.
    Type: Application
    Filed: August 4, 2017
    Publication date: January 23, 2020
    Applicant: BYD Company Limited
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Fei WU, Youbin XU
  • Publication number: 20200016970
    Abstract: The present disclosure provides a power-drive system for a vehicle and a vehicle. The power-drive system comprises: an engine; a plurality of input shafts; a plurality of output shafts, the plurality of output shafts linking with a differential of the vehicle; a first clutch device, arranged between the engine and the plurality of input shafts, so that the engine selectively engages with at least one of the plurality of input shafts; a first motor generator, configured to link with the differential of the vehicle; and a second motor generator, wherein the second motor generator and the engine are located on an input side of the first clutch device, the plurality of input shafts is located on an output side of the first clutch device, and the second motor generator is configured to carry out stationary power generation using at least part of power of the engine when the vehicle is parked.
    Type: Application
    Filed: August 3, 2017
    Publication date: January 16, 2020
    Applicant: BYD Company Limited
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Fei WU, Youbin XU
  • Publication number: 20190358999
    Abstract: The present specification discloses a drive shaft locking device, a power-driven system, and a vehicle. The drive shaft locking device comprises a planetary gear mechanism comprising a sun gear, a planetary gear, a planetary carrier, and a gear ring. A first drive shaft is connected with one of the sun gear, the planetary carrier, and the gear ring, and a second drive shaft is connected with another one of the sun gear, the planetary carrier, and the gear ring. A power joint device comprises a first joint part and a second joint part. The first drive shaft and the first joint part synchronously rotate, and the second drive shaft and the second joint part synchronously rotate. A joint part drive comprises a drive part to drive a drive needle for joining the second joint part with the first joint part along the axial direction.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 28, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Heping LING, Zhen ZHAI, Changan HUANG, Yongmeng LUO
  • Publication number: 20190346032
    Abstract: The present specification discloses a drive shaft locking device, a power-driven system, and a vehicle. The drive shaft locking device comprises a planetary gear mechanism a first drive shaft, a second drive shaft, and a power joint device. The power joint device comprises a first joint part and a second joint part. The first joint part moves along the axial direction relative to the first drive shaft. A joint part drive device comprises a drive needle and a drive part. The drive needle rotates around the central axis of the sun gear along with a gear ring and moves along the axial direction relative to the gear ring to drive the drive needle for joining the first joint part with the second joint part.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 14, 2019
    Applicant: BYD Company Limited
    Inventors: Ming BEI, Heping LING, Zhen ZHAI, Changan HUANG, Yongmeng LUO
  • Publication number: 20190322165
    Abstract: The present disclosure discloses a power drive system and a vehicle, the power drive system including: an engine; a plurality of input shafts, the engine being configured to be selectively engaged with at least one of the plurality of input shafts each provided with a gear driving gear; a plurality of output shafts each provided with a gear driven gear, a plurality of gear driven gears being meshed with a plurality of gear driving gears respectively; a reverse shaft provided with a first gear for the reverse shaft, the first gear for the reverse shaft being meshed with one of the gear driving gears; a reverse output gear linked with the reverse shaft; and a first electric generator, the first electric generator and the plurality of output shafts linked with a differential power input gear of the vehicle respectively.
    Type: Application
    Filed: May 11, 2017
    Publication date: October 24, 2019
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU
  • Publication number: 20190308497
    Abstract: The present invention discloses a power transmission system and a vehicle having same.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 10, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Youbin XU, Wei HUANG
  • Publication number: 20190308495
    Abstract: The present disclosure provides a power-drive system for a vehicle and a vehicle. The power-drive system comprises: an engine; a plurality of input shafts, the engine being configured to selectively engage with at least one of the plurality of input shafts; a plurality of output shafts; a first motor power shaft, a motor power shaft first gear being arranged on the first motor power shaft, the motor power shaft first gear and the plurality of output shafts linking with a differential of the vehicle respectively; a second motor power shaft, a motor power shaft second gear linking with one gear-position driven gear being arranged on the second motor power shaft; a transfer gear, configured to selectively engage with the motor power shaft first gear to link with the motor power shaft first gear, and selectively engage with the motor power shaft second gear to link with the motor power shaft second gear; and a first motor generator, configured to link with the transfer gear.
    Type: Application
    Filed: August 4, 2017
    Publication date: October 10, 2019
    Inventors: Yubo LIAN, Heping LING, Zhen ZHAI, Fei WU, Youbin XU
  • Publication number: 20190299767
    Abstract: A power transmission system includes: a power source; a speed change unit, where the speed change unit is suitable for being selectively power-coupled to the power source; a first motor generator unit; a system power output portion; a first mode conversion device, where at least one of the speed change unit and the first motor generator unit is power-coupled to or power-decoupled from the system power output portion through the first mode conversion device; and a second mode conversion device, where the speed change unit can be power-coupled to or power-decoupled from the first mode conversion device through the second mode conversion device, and the speed change unit can be power-coupled to the first mode conversion device through the second mode conversion device, so that power from the power source is decelerated sequentially through the speed change unit and the second mode conversion device and then output to the first mode conversion device.
    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: 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
  • Publication number: 20190291567
    Abstract: A power transmission system includes: a power source; a first motor generator unit; a system power output portion; a first and a second mode conversion devices. The power source and the first motor generator unit is connected to or disconnected from the system power output portion through the first mode conversion device. The power source can be connected to or disconnected from the first mode conversion device through the second mode conversion device. The second mode conversion device includes a conversion device input shaft, a first conversion device intermediate shaft and a conversion device output shaft, and the conversion device output shaft is connected to the first motor generator unit; and power from the power source is suitable for being decelerated sequentially through the conversion device input shaft, the first conversion device intermediate shaft and the conversion device output shaft and then output to the first mode conversion device.
    Type: Application
    Filed: October 30, 2017
    Publication date: September 26, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Wei HUANG, Youbin XU, Zhen ZHAI, Heping LING
  • Patent number: 10393249
    Abstract: A differential, a power transmission system, and a vehicle are provided. The differential includes: a first planetary carrier, a first gear ring, and a first planetary gear disposed on the first planetary carrier and meshed with the first gear ring; and a second planetary carrier, a second gear ring, and a second planetary gear disposed on the second planetary carrier and meshed with the second gear ring and the first planetary gear, in which the first gear ring and the second gear ring are configured as two power output ends of the differential, the first planetary carrier and the second planetary carrier are configured as power input ends of the differential, and a revolution radius of the first planetary gear is different from a revolution radius of the second planetary gear.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 27, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Heping Ling, Zhen Zhai, Feng Zheng, 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
  • Publication number: 20190255942
    Abstract: The power transmission system includes: a power source; a first motor generator unit; a system power output portion; and a mode conversion device, where the mode conversion device includes: an input portion, a first conversion portion, a second conversion portion and an output portion, the output portion is connected to an input end of the system power output portion, the input portion is suitable for outputting power from at least one of the power source and the first motor generator unit, the input portion is selectively connected to one of the first conversion portion and the second conversion portion, and each of the first conversion portion and the second conversion portion cooperates with the output portion to perform transmission; and the input portion is connected to the second conversion portion, so that a rotational speed output by the input portion is reduced and then output to the input end of the system power output portion.
    Type: Application
    Filed: October 30, 2017
    Publication date: August 22, 2019
    Applicant: BYD COMPANY LIMITED
    Inventors: Heping LING, Zhen ZHAI, Wei HUANG, Youbin XU
  • 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
  • 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
  • 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: 20180209526
    Abstract: The present disclosure discloses a power-driven system and a vehicle. The power-driven system includes: a differential; a power output shaft configured to link to a power input end of the differential; multiple input shafts; and a first motor generator. The differential includes a first planet carrier, a second planet carrier, a first planet gear, a second planet gear, a first ring gear, and a second ring gear. The first planet gear and the second planet gear are respectively disposed on the first planet carrier and the second planet carrier, the first planet gear and the second planet gear are respectively mesh with the first ring gear and the second ring gear, and the second planet gear further meshes with the first planet gear. One input shaft of the multiple input shafts is configured to selectively link to the power output shaft, and another input shaft of the multiple input shafts is configured to link to the power output shaft.
    Type: Application
    Filed: March 22, 2018
    Publication date: July 26, 2018
    Inventors: YUBO LIAN, HEPING LING, ZHEN ZHAI, FENG ZHENG, YOUBIN XU