The rapid electrification and autonomous driving trends in the automotive industry are reshaping the design and functionality of heavy commercial vehicles. Traditional hydraulic steering systems, plagued by inefficiency, high power consumption, and environmental risks like oil leakage, are increasingly being replaced by Electric Power Steering (EPS). AEAUTO EPS technology, tailored for heavy-duty applications, exemplifies this shift by addressing critical challenges in torque, reliability, and integration with autonomous systems.
Meeting the Demands of Electrification and Autonomy
Heavy commercial vehicles require steering systems capable of delivering over 8,000Nm torque—a demand unmet by conventional hydraulic systems. AEAUTO electric power steering eliminates hydraulic components entirely, relying on a purely electric drive with a 24V dual-winding permanent magnet synchronous motor. This design not only ensures high torque output but also reduces energy consumption and eliminates hydraulic oil-related risks. By integrating the motor, controller, and steering mechanism into a compact unit, the system simplifies vehicle layout while enhancing compatibility with electric and autonomous platforms.
Core Technological Breakthroughs
High Torque Output (8,000Nm):
Utilizing a patented deceleration mechanism combining a high-precision ball screw, planetary gears, and a planar secondary enveloping torus worm, the system achieves a variable transmission ratio of 15–23. This enables the 24V motor to deliver industry-leading torque while maintaining compact dimensions.
Redundancy for Safety:
As a functional safety component, the eps incorporates dual power sources, dual winding, dual MCU, and dual control chips. This redundancy architecture ensures uninterrupted operation even if one subsystem fails, meeting stringent safety standards for autonomous vehicles.
Ultra-Fast Response (≤50 ms):
Dynamic tracking algorithms and low-inertia motor design enable precise steering angle control with a response time of ≤50 ms. This rapid feedback is critical for high-speed scenarios, allowing vehicles to maintain stability and maneuverability under demanding conditions.
Superior Performance Over Competitors
AEAUTO electric power steering outperforms foreign competitors in key metrics. While many rely on 48V systems for higher power, AEAUTO 24V solution achieves comparable performance through optimized reduction mechanisms, avoiding compatibility issues. The system also excels in steering angle accuracy (±0.05°), maximum angular velocity (540°/s), and adaptability to front axle loads up to 7,500 kg. Compared to electro-hydraulic systems, EPS reduces energy loss by 30%, cuts weight by 35%, and lowers overall costs by 20% by eliminating hydraulic pumps, tanks, and controllers.
Integration with Autonomous Solutions
The EPS is designed for seamless integration with Advanced Driver-Assistance Systems (ADAS) and autonomous driving platforms. Features like speed-dependent power assistance, auto-centering, and vibration suppression enhance driver comfort and safety. In autonomous trucks, the system’s real-time communication with vehicle controllers (10 ms intervals) ensures precise steering feedback, obstacle avoidance, and efficient route execution. AEAUTO solutions also support 24/7 operations, reducing fuel costs by 30% and enabling 95% operational efficiency compared to manual driving.
AEAUTO EPS represents a paradigm shift in heavy commercial vehicle steering technology. By prioritizing electrification, redundancy, and rapid response, the system not only meets current industry demands but also paves the way for fully autonomous, sustainable transport. With lighter designs, lower costs, and unmatched reliability, EPS is poised to drive the future of logistics and smart mobility.