US 12,276,324 B2
Drive apparatus, dual-motor drive system, automobile and drive apparatus control method
Benben Chai, Shanghai (CN); Fengyu Liu, Shanghai (CN); and Yihong Zheng, Shanghai (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Nov. 18, 2022, as Appl. No. 17/989,963.
Application 17/989,963 is a continuation of application No. PCT/CN2020/091109, filed on May 19, 2020.
Prior Publication US 2023/0100807 A1, Mar. 30, 2023
Int. Cl. B60K 17/04 (2006.01); B60K 1/02 (2006.01); B60K 17/16 (2006.01); B60L 15/20 (2006.01); F16H 37/08 (2006.01); F16H 57/10 (2006.01); B60K 7/00 (2006.01)
CPC F16H 37/0806 (2013.01) [B60K 1/02 (2013.01); B60K 17/165 (2013.01); B60L 15/20 (2013.01); F16H 57/10 (2013.01); B60K 7/0007 (2013.01); B60K 2007/0061 (2013.01); B60K 17/046 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A drive apparatus, comprising a first variable speed drive mechanism, a second variable speed drive mechanism, a first output half shaft, and a second output half shaft, wherein:
the first variable speed drive mechanism comprises a first reduction gear, a first planetary gear system, and a first brake mechanism, and the second variable speed drive mechanism comprises a second reduction gear, a second planetary gear system, and a second brake mechanism;
the first planetary gear system comprises a first sun gear, a first gear ring, a first planetary gear engaged between the first sun gear and the first gear ring, and a first planet carrier connected to the first planetary gear;
the first reduction gear is engaged with the first sun gear, and the first planet carrier is connected to the first output half shaft;
the first brake mechanism is engaged with the first gear ring, and is configured to control the first gear ring to be locked or to control the first gear ring to be connected to the first planet carrier;
the second planetary gear system comprises a second sun gear, a second gear ring, a second planetary gear engaged between the second sun gear and the second gear ring, and a second planet carrier connected to the second planetary gear;
the second reduction gear is engaged with the second sun gear, and the second planet carrier is connected to the second output half shaft;
the second brake mechanism is engaged with the second gear ring, and is configured to control the second gear ring to be locked or control the second gear ring to be connected to the second planet carrier; and
the first output half shaft and the second output half shaft are operable to be switched between engagement and disengagement.