US 11,808,334 B2
Drive axle assembly for vehicle
Zeming Fang, Shenzhen (CN); Hailong Wei, Shenzhen (CN); Chupeng Quan, Shenzhen (CN); and Huiyue Liu, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Guangdong (CN)
Appl. No. 17/765,414
Filed by BYD COMPANY LIMITED, Guangdong (CN)
PCT Filed Sep. 24, 2020, PCT No. PCT/CN2020/117302
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2021/063236, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 201910944205.8 (CN), filed on Sep. 30, 2019.
Prior Publication US 2022/0356935 A1, Nov. 10, 2022
Int. Cl. F16H 57/04 (2010.01); F16H 37/08 (2006.01); B60B 35/12 (2006.01); B60K 17/08 (2006.01); B60K 17/16 (2006.01)
CPC F16H 37/082 (2013.01) [B60B 35/125 (2013.01); B60K 17/08 (2013.01); B60K 17/16 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A drive axle assembly of a vehicle, comprising:
a motor;
a first shaft and a second shaft, dynamically coupled to the motor, wherein the first shaft and the second shaft are both hollow shafts; a right planet row mechanism is disposed on the first shaft; a left planet row mechanism is disposed on the second shaft;
a right sun gear of the right planet row mechanism is connected with the first shaft; a left sun gear of the left planet row mechanism is connected with the second shaft;
the right sun gear is configured to rotate synchronously with the first shaft; the right sun gear has a right central oil passage and a right radial oil passage in communication with the right central oil passage; the right central oil passage is in communication with the first shaft; and the left sun gear is configured to rotate synchronously with the second shaft; the left sun gear has a left central oil passage and a left radial oil passage in communication with the left central oil passage; the left central oil passage is in communication with the second shaft; and the first shaft is in communication with the second shaft to supply oil to the second shaft.