X-EPS 915 Electric Recirculating Ball Steering

1. Product Overview

TRION X-EPS 915 electric recirculating ball steering is designed to provide precise, stable, and efficient steering assistance for light and medium-duty trucks ranging from 3.5 tons to 12 tons. With a maximum torque of 915 Nm, a brush electric motor, and advanced electronic controls, it offers a reliable solution for modern commercial vehicles. By combining durability with electronic intelligence, TRION X-EPS 915 reduces driver effort, supports advanced driving features, and enhances the safety of heavy-load operations.

2. Core Components

The heart of TRION X-EPS 915 lies in its carefully engineered components:

• Electric Motor: A brush motor (12V/24V) rated at 400W with high current capacity (60A). Designed for consistent torque output and thermal stability.
• Torque Transmission System: Capable of delivering a rated torque of 3.2 Nm at 1050 rpm, while handling peaks up to 915 Nm.
• Steering Gear: The recirculating ball mechanism minimizes friction, reduces wear, and ensures long-term operational reliability even under heavy loads.
• Electronic Control Unit (ECU): Offers torque compensation, system monitoring, and communication via CAN/CANFD.
• Protective Housing: Ensures resilience against temperature fluctuations, vibrations, and environmental factors common in logistics and transport applications.

Each of these components works together to ensure that the electric recirculating ball steering system remains efficient, safe, and dependable throughout its lifecycle.

3. Product Functions

TRION X-EPS 915 provides multiple driver-focused and safety-oriented functions:

• Speed-sensitive assistance: Steering effort automatically adjusts based on vehicle speed.
• Return-to-center support: Smooth automatic return for improved handling.
• Torque compensation: Active correction to counteract road resistance.
• Friction compensation: Reduced steering effort for enhanced comfort.
• Inertia compensation: Stable steering feel under varying driving conditions.
• Temperature management: Protects the motor from overheating.
• Motor thermal protection: Extends component life by avoiding overload.
• Assisted and automated driving support: Ready for L2 autonomous driving features.
• End-point protection: Prevents oversteering damage.

These functions highlight the balance between human driving comfort and automated system integration.

4. Product Advantages

TRION X-EPS 915 brings clear benefits that address customer priorities:

• Output torque range up to 1500–2000 Nm, suitable for a wide spectrum of vehicles.
• Supports L2 automated driving systems for commercial trucks.
• Modular sensor interface compatible with multiple TAS sensor types.
• Secure communication with CAN/CANFD interface.
• Hardware encryption for improved cybersecurity.
• Developed in compliance with GB17675-2021 standards.
• Safety classification meeting ASIL-D requirements.
• OTA upgrade support for software improvements without hardware changes.

These features show how the X-EPS electric recirculating ball steering is not only robust in design but also adaptable for future mobility needs.

5. Product Applications

TRION X-EPS 915 has been specifically developed for:

• Light commercial vehicles (LCVs): Providing smooth steering for urban delivery fleets.
• Medium-duty trucks: Offering durability for regional and intercity logistics.
• Mini trucks and vans: Ensuring cost-efficient and reliable steering in compact vehicle designs.

By covering a broad application range, the product allows fleet managers to select a single, unified steering solution for different truck categories.

6. Technology and Development

The X-EPS family has been engineered with an emphasis on precision and safety. The development team integrated torque sensors, advanced algorithms, and real-world testing to ensure accuracy in torque response. Thermal simulations and vibration endurance tests were carried out to secure reliability in varied environments. Additionally, the system was validated for compatibility with next-generation autonomous driving features, making the X-EPS electric recirculating ball steering future-ready.

7. Manufacturing Excellence

Production of the X-EPS 915 follows ISO-certified processes. Each steering unit undergoes rigorous quality checks, including torque calibration, electrical durability tests, and sealing inspections to guarantee IP-grade protection. The use of high-quality steel components and advanced machining ensures consistent performance over thousands of operating hours. Customers benefit from a product that is both durable and economically efficient to maintain.

8. Frequently Asked Questions (FAQ)

Q1: What vehicles are best suited for TRION X-EPS 915?
The model is ideal for light and medium-duty trucks (3.5T–12T), including city logistics vehicles and regional transport trucks.

Q2: How does the X-EPS differ from hydraulic steering systems?
Unlike traditional hydraulic systems, the electric recirculating ball steering eliminates hydraulic fluid, reduces energy consumption, and enables integration with autonomous driving technologies.

Q3: Is TRION X-EPS 915 compatible with automated driving systems?
Yes. It is developed to support L2 automated driving functions and is fully capable of OTA software upgrades for future enhancements.

Q4: What maintenance does the system require?
TRION X-EPS 915 requires minimal maintenance thanks to its oil-free operation, thermal protection, and robust design. Regular inspection of electronic connections and system calibration is recommended.