Electric Motor Rear Axle

Our electric motor rear axle is designed to provide reliable propulsion for medium-duty and heavy-duty electric vehicles. By combining permanent magnet synchronous motors with an integrated portal axle structure, this solution improves efficiency and reduces the complexity of traditional drivetrains. It is engineered for applications where stability, durability, and consistent performance are crucial, such as city buses and logistics vehicles. Instead of relying on a central motor and long drive shafts, the axle-mounted system reduces weight, frees up design space, and enhances energy utilization.

TRION electric motor rear axle integrates key technologies to optimize performance and reliability:

Motor Integration:

Two high-performance PMSM motors (2×120 kW peak / 2×60 kW rated) are positioned directly within the axle assembly, minimizing energy loss.

 

Optimized Torque Delivery:

With a system torque output of 14,040 N·m, the axle ensures smooth acceleration under varying loads.

 

Durability:

Rated voltage of 540 VDC and IP68 protection make the system highly resilient in harsh operating conditions.

 

Compact Design:

This electric motor rear axle enables wide interior channels for low-floor vehicles, improving passenger flow and safety.

Customers benefit from this electric motor rear axle through:

Passenger Safety:

Wide channel and low-floor layouts improve cabin safety.

 

Driving Stability:

Dual-tire configuration enhances traction and stability.

 

Proven Reliability:

The electronic differential supports tire mileage exceeding 100,000 km.

 

Balanced Performance:

This electric motor rear axle maintains consistent torque and speed for urban applications.

By offering strong torque and reduced maintenance, our electric motor rear axle ensures value in both passenger transport and goods distribution.

Our electric motor rear axle is suited for:

 

Urban Commuter Buses

8–9 meter city buses where comfort and safety are priorities.

Medium-duty commercial EVs requiring durability in stop-and-go traffic.

Our R&D teams focus on refining the electric motor rear axle through advanced testing and engineering. Development includes endurance testing, NVH optimization, and improved thermal management. Feedback from customers shapes upgrades, ensuring each electric motor rear axle adapts to evolving EV designs with greater efficiency and extended lifespan.

Every electric motor rear axle is manufactured in modern facilities with automated processes and strict controls. Production covers motor winding, gear assembly, and full-system testing. Each unit undergoes waterproofing, load testing, and torque verification. This structured approach guarantees consistent quality, ensuring that each electric motor rear axle meets customer expectations.

Q1: What vehicles are best suited for our electric motor rear axle?
A1: It is primarily designed for 8–9 meter city buses and medium-duty electric vehicles.

Q2: How does this electric portal axle improve energy efficiency?
A2: By integrating motors directly into the axle, it reduces power loss and increases efficiency.

Q3: What is the service life of the electric motor rear axle?
A3: Tire mileage can exceed 100,000 km, depending on usage and road conditions.

Q4: Can this electric motor axle handle harsh environments?
A4: Yes, IP68 protection ensures dust and water resistance.

Q5: How much maintenance does our electric vehicle axle require?
A5: Minimal maintenance is needed due to reduced mechanical complexity.

Q6: What benefits does the wide channel design bring to the electric motor rear axle?
A6: It allows for low-floor layouts, improving passenger flow and safety inside vehicles.