What Is Electric Power Steering System?
Electric Power Steering uses an electric motor rather than a belt-driven hydraulic pump to assist driver steering inputs. A torque sensor at the steering column measures driver force, and an Electronic Control Unit (ECU) computes the exact assist torque based on vehicle speed and load. The motor’s output is translated through a gearing mechanism, enabling smooth, adaptive steering feel without constant parasitic losses.
Core Components of AEAUTO Electric Power Steering
Torque Sensor & ECU
Detects steering effort and runs safety-certified ASIL-D redundant algorithms.
High-Torque Electric Motor
Provides up to 8,000 Nm of assist with low cogging and rapid response for heavy trucks and port tractors.
Power & Vehicle Control Units (PDU/VCU)
Manages high-voltage distribution, CAN-bus integration, and fail-safe fallback functions.
Thermally Managed Battery Packs
Modular LFP packs with liquid cooling support 8–12 hour shifts in high-heat environments.
Steer-by-Wire Architecture
Pre-validated interface for next-gen ADAS and autonomous driving features.
Industrial-Grade Advantages
Reduced Driver Effort: Variable assist—light at low speeds for tight maneuvers, firmer at highway speeds—cuts fatigue and improves control.
Energy Efficiency: Assist only activates when needed, reducing power draw versus hydraulic systems.
Enhanced Reliability: No hydraulic fluids or pumps means fewer leak points and lower maintenance in dusty or corrosive environments.
ADAS & Autonomous Integration: Fast VCU-motor communication and precision torque feedback enable lane-keep and corrective steering functions.
Typical Application Scenarios
Mining Dump Trucks (6×4, 8×4): Heavy-load torque, steep-grade handling, dust-tight designs.
Port & Terminal Tractors: Constant low-speed turns under full load—ideal for dynamic assist curves.
Construction Loaders & Excavators: Seamless integration with hydraulic systems for synchronized machine control.
City & Coach Buses: Steer-by-Wire enables advanced driver assistance and fleet telematics.
Real-World Case Study
A Southeast Asian logistics operator retrofitted 20 units of 6×4 diesel dump trucks with AEAUTO’s EPS kits:
- 52% fuel cost reduction through regenerative assist
- Zero hydraulic failures over 18 months
- 9-hour continuous operation in 45 °C quarry conditions
- Payback period under 24 months
Next Steps
To explore how AEAUTO’s Electric Power Steering can transform your fleet:
Read the Mining Fleet Case Study