US 11,796,052 B2
Gear shifting apparatus, electric drive system, and new energy vehicle
Zhengyi Tang, Shenzhen (CN); Hai Guo, Shenzhen (CN); and Huan Wang, Shenzhen (CN)
Assigned to HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Aug. 11, 2022, as Appl. No. 17/886,022.
Claims priority of application No. 202110924627.6 (CN), filed on Aug. 12, 2021.
Prior Publication US 2022/0381337 A1, Dec. 1, 2022
Int. Cl. F16H 61/00 (2006.01); F16H 37/08 (2006.01); F16H 61/28 (2006.01); F16H 61/682 (2006.01); F16H 3/10 (2006.01); F16H 3/089 (2006.01); B60K 17/08 (2006.01)
CPC F16H 61/0059 (2013.01) [F16H 37/0813 (2013.01); F16H 61/2807 (2013.01); F16H 61/682 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gear shifting apparatus, comprising:
a primary power transmission unit;
a secondary power transmission unit;
an intermediate shaft;
an intermediate shaft gear fixedly sleeved on the intermediate shaft;
a first clutch unit disposed between the intermediate shaft and the primary power transmission unit, wherein the first clutch unit is configured to achieve first power transmission between the primary power transmission unit and the intermediate shaft or break the first power transmission;
a second clutch unit disposed between the intermediate shaft and the secondary power transmission unit, wherein the second clutch unit is configured to achieve second power transmission between the secondary power transmission unit and the intermediate shaft or break the second power transmission; and
a third clutch unit disposed between the primary power transmission unit and the intermediate shaft gear,
wherein the third clutch unit is configured to achieve third power transmission between the primary power transmission unit and the intermediate shaft gear or break the third power transmission, and
wherein the gear shifting apparatus is configured to be in a self-locking state when the first clutch unit achieves the first power transmission, the second clutch unit achieves the second power transmission based on combining the second clutch unit with the intermediate shaft gear, and the third clutch unit achieves the third power transmission based on combining the third clutch unit with the intermediate shaft gear.