Multi-speed transmission, hybrid drive system, and vehicle
By employing a composite planetary gear set and a specially arranged clutch and brake in a multi-speed transmission, 1-4 gear shifting is achieved, solving the problem of insufficient compactness of the multi-speed transmission structure and improving the compactness and layout rationality of the hybrid drive system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU AUTOMOBILE GROUP CO LTD
- Filing Date
- 2025-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing multi-speed transmission structure is not compact enough, which affects the layout of the hybrid drive system in the vehicle.
By employing a compound planetary gear set and a specially arranged clutch and brake, the working states of the first clutch, the second clutch, the first brake, and the second brake are controlled to achieve 1-4 gear shifting. Furthermore, the first brake and the second brake are respectively arranged on the radial outer side of the compound planetary gear set and the second clutch to reduce the axial length.
It achieves a compact arrangement of multi-speed transmissions, simplifies cooling and lubrication circuits, reduces the number of parts, and improves the overall compactness and layout rationality of the hybrid drive system.
Smart Images
Figure CN122402203A_ABST