Electric Vehicle Rear Axle

Our electric vehicle rear axle is a core component designed to combine high performance with reliable safety in modern electric buses. For operators managing fleets of 10.5 to 18-meter vehicles, the axle must do more than transfer torque-it must support stability, passenger comfort, and long-term cost efficiency.

Trion EA2100N rear axle is powered by dual permanent magnet synchronous motors, with a peak power of 2 × 160 kW and a rated output of 2 × 95 kW. Its system output torque reaches an impressive 21,552 N·m, enabling buses to handle the frequent starts and stops of urban and suburban routes with ease. With a rated axle load of 13,000 kg and compatibility with 275/70R22.5 tires, this model is built for heavy-duty operation without compromising efficiency.

By integrating both mechanical strength and advanced electronic systems, the electric vehicle rear axle represents a complete solution for vehicle manufacturers seeking dependable, passenger-focused performance.

Durability and stability are key advantages of the EA2100N. Certified by E-mark standards, the axle has undergone strict validation, ensuring compliance with international safety and reliability benchmarks.

 

Fleet operators benefit from reduced operational costs thanks to its mature electronic differential system, which extends tire mileage to over 100,000 kilometers before replacement. This directly lowers maintenance requirements and downtime, contributing to long-term savings.

 

The system's dual-motor output torque of 2 × 580 N·m peak / 2 × 220 N·m rated ensures smooth performance during both acceleration and steady-state driving. Combined with its 18.58 gear ratio, the axle offers efficient power delivery across different driving conditions.

 

Ultimately, the electric vehicle rear axle is not just about performance-it is about delivering measurable value in efficiency, safety, and lifecycle durability.

One of the main features of the EA2100N is its low-floor compatibility. The design allows for safer passenger entry and exit, a critical factor in public transportation. Accessibility is further enhanced by a wider, more comfortable interior layout.

 

Another standout feature is its electronic differential system, which ensures smooth driving dynamics even in challenging traffic conditions. This system not only reduces tire wear but also improves handling stability, providing both operators and passengers with confidence in everyday operation.

With an IP68 protection level, the axle demonstrates high resilience against water and dust intrusion. Its rated voltage of 540 V and a maximum wheel speed of 430 r/min make it a robust yet efficient drivetrain component, tailored for long service life.

 

Together, these features position the electric vehicle rear axle as more than just a drivetrain part-it is a contributor to operational safety and efficiency.

Our EA2100N rear axle is well-suited for large public transport vehicles, including:

10.5–18 meter city buses

Articulated buses operating in urban networks

Double-decker buses requiring strong load capacity

Its low-floor adaptability improves passenger flow in high-density routes, while its heavy-duty load rating supports demanding operational environments. For transport providers, this makes the electric vehicle rear axle a practical and versatile choice across a wide range of fleet applications.

 

Behind the EA2100N is extensive technical development focused on achieving both performance and efficiency. Engineers applied advanced modeling tools to optimize motor control strategies, ensuring torque delivery remains consistent across variable driving conditions.

Testing protocols simulate urban traffic patterns, steep gradients, and long-distance driving. Each axle undergoes performance verification under extreme environments, validating its IP68 protection rating and resilience under load stress.

The continuous focus on research and validation ensures that the electric vehicle rear axle delivers reliability not only in laboratory conditions but also in everyday fleet operations.

Q1: What makes the EA2100N different from conventional EV axles?
A: Its dual-motor PMSM design delivers higher torque and stability, while the low-floor compatibility enhances passenger accessibility.

Q2: Can the axle be customized for different bus configurations?
A: Yes, this electric vehicle rear axle can be adapted for articulated and double-decker bus designs, depending on vehicle structure and load requirements.

Q3: How does the electronic differential system improve performance?
A: It balances torque between wheels, reduces tire wear, and improves handling, particularly in city driving conditions.

Q4: What is the expected service life of the EA2100N?
A: With over 100,000 km of tire mileage supported by the EDS, the axle ensures long-term operational stability.

Q5: Is the axle resistant to environmental conditions?
A: Yes, with IP68 certification, this electric vehicle rear axle resists water and dust, making it suitable for all-weather use.

Q6: How does regenerative braking integrate with this axle?
A: The system works in sync with the motors to capture braking energy, improving efficiency and reducing mechanical wear.