Longitudinal 2-speed electric drive assembly and new energy vehicle
The longitudinally mounted two-speed electric drive assembly addresses the challenge of handling high-speed and high-torque conditions in new energy vehicles by employing electromagnetic dog clutches and gear shifting, ensuring efficient operation and reduced NVH issues.
JP2026524678APending Publication Date: 2026-07-23JING JIN ELECTRIC TECH CO LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- JING JIN ELECTRIC TECH CO LTD
- Filing Date
- 2024-04-25
- Publication Date
- 2026-07-23
AI Technical Summary
Technical Problem
Existing new energy vehicle drive assemblies struggle to simultaneously handle high-speed and high-torque conditions without increasing production costs or causing NVH issues, especially when using direct drive or two-stage reduction.
Method used
A longitudinally mounted two-speed electric drive assembly with an input shaft, intermediate shaft, and output shaft, utilizing electromagnetic dog clutches and a power take-off mechanism, allowing for both direct drive and high-torque output through gear shifting mechanisms.
Benefits of technology
The assembly achieves efficient operation across various conditions with a compact structure, high transmission efficiency, improved NVH performance, and lower production costs, with smoother and faster gear shifts.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026524678000001_ABST
Abstract
A longitudinally mounted two-speed electric drive assembly and a new energy vehicle, wherein the longitudinally mounted two-speed electric drive assembly includes a drive motor (1) and a transmission mechanism, the transmission mechanism includes an input shaft (2), an intermediate shaft (3) and an output shaft (4), the input shaft (2) is electrically connected to the drive motor (1), the output shaft (4) is coaxial with the input shaft (2) and is electrically connected to the output shaft (4) by a first clutch (5), and the intermediate shaft (3) is parallel to the output shaft (4). The input shaft (2) is equipped with a first gear (6), the intermediate shaft (3) is equipped with a second gear (7) and a third gear (8), the third gear (8) and the intermediate shaft (3) are connected by a second clutch (9), and the output shaft (4) is equipped with a fourth gear (10). The first gear (6) and the second gear (7) mesh together for power transmission, and the third gear (8) and the fourth gear (10) mesh together for power transmission. Of these, the first clutch (5) and the second clutch (9) are both electromagnetic dog clutches. This vertically mounted two-speed electric drive assembly can meet the needs of various operating conditions and has advantages such as a compact structure, high power transmission efficiency, good NVH performance, and low production cost.
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