High-Efficiency Integrated e-Axle for Heavy-Duty Trucks by China Suppliers and Factory - 130/286kW Performance
Pumba PMEA45000Z Integrated e-axle Matching Model
18-ton sanitation trucks, trucks
6 * 4 / 8 * 4 tractor
Pumba PMEA45000Z Integrated e-axle Technical Parameters
⚙️ Basic drive structure: dual-motor drive + 2-speed AMT
| Category | Parameter Item | Specification |
|---|---|---|
|
Drive motors (Dual-drive motor) |
Rated/peak power | 72/160kW |
| Nominal/peak torque | 156/380Nm | |
| Maximum speed | 10000rpm | |
| Gearbox | Gearbox ratio | 70.44~8.25 |
| Gear shift form | AMT | |
| Assembly | Rated axle load | 13000kg |
| Output Power Rated/Peak | 130/286kW | |
| Wheel end output torque | 44570Nm | |
| Ground clearance | ≥300mm | |
| Total weight | ≤950kg | |
| Mounting Interfaces | Leaf spring distance | 1020-1040 (Optional) |
| Overall width | 2420mm | |
| Brake specifications | Drum pose/φ410×220 | |
| Maximum braking torque | 2×18000Nm |
Pumbaa PMEA45000Z Integrated e-axle Application Case
Data Management
📊 System: Adopt the international advanced PLM product development management system.
🛠️ Process: Over several months of fully forward development.
✅ Quality: Contains 13 control review points and 96 main deliverables.
Analysis of Electric Drive Axle Structure
The electric drive axle integrates the "drive motor + transmission system + differential + half-shaft." Using permanent magnet synchronous motors (PMSM) coupled with a reducer simplifies the transmission chain. This integrated design shortens axial length by 30%, reduces weight by 15%, and improves transmission efficiency to over 96%.
External Structure of Electric Drive Axle
The Deep Value of Integrated Design
The "three-in-one" integration achieves synergistic optimization. By unifying torque transmission axes and standardizing mounting holes, assembly time is reduced from 3 hours to 20 minutes, while cutting component weight by 12%.
Internal Motor of Electric Drive Axle
Transmission System & Energy Optimization
Mainstream solutions use helical gear + planetary gear sets. Helical gears increase tooth surface contact by 20%, reducing noise by 5dB and transmission loss by 3%-5%. High-end solutions introduce "oil-cooled motor + submerged reducer" designs, pushing efficiency beyond 97%.
Internal Structure Diagram of Electric Drive Axle
Intelligent Thermal Management
Equipped with NTC temperature sensors and real-time current data monitoring, the ECU dynamically adjusts liquid cooling flow (response time
Detailed Internal Structure Diagram
Future electric drive axles are evolving toward 800V high-voltage platforms and SiC inverters, pushing power density beyond 5kW/kg. The integration with x-by-wire chassis supports precise torque distribution for intelligent driving.