公开(公告)号：US10967729B2

公开(公告)日：2021-04-06

申请号：US16346521

申请日：2017-10-30

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Zhen Zhai ,  Youbin Xu ,  Wei Huang

IPC: B60K6/365 ,  B60K6/48 ,  F16H3/00 ,  F16H3/085 ,  F16H37/06 ,  B60K6/24 ,  F16H37/04 ,  B60K6/36 ,  B60K6/547 ,  F16H48/06 ,  B60W20/00 ,  B60K6/387 ,  B60K6/42 ,  B60K6/26

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.

公开(公告)号：US10967727B2

公开(公告)日：2021-04-06

申请号：US16346524

申请日：2017-10-30

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Zhen Zhai ,  Youbin Xu ,  Wei Huang

IPC: B60K6/547 ,  B60K6/44

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.

公开(公告)号：US10899219B2

公开(公告)日：2021-01-26

申请号：US16314008

申请日：2017-05-11

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Zhen Zhai ,  Youbin Xu

IPC: B60K6/36 ,  B60K17/16 ,  B60L53/14 ,  B60K6/547 ,  B60K6/48

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.

公开(公告)号：US10391851B2

公开(公告)日：2019-08-27

申请号：US15648819

申请日：2017-07-13

Applicant: BYD COMPANY LIMITED

Inventor： Ou Ruan ,  Zhen Zhai ,  Youbin Xu ,  Fei Wu

IPC: F16H3/00 ,  B60K6/48 ,  B60K6/547 ,  B60K6/26 ,  B60K6/365 ,  B60K6/40 ,  B60K6/52 ,  F16H3/091 ,  F16H37/08 ,  F16H48/36 ,  B60K6/387 ,  F16H3/08 ,  F16H3/093

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.