원문정보
초록
영어
The Electric motor coach has become the focus of attention for its energy saving and green non-polluting, but it also poses a new challenge to feedback aspects of steering system and steering feeling. To enhance high-speed handling road sense, this article suggested using genetic algorithm to optimize mixed H2/H∞ system for boosting steering feeling control ability of hydraulic power steering system of electric motor coach based on analyzing electric hydraulic power steering system and feedback torque mathematical model of steering wheel. Simulation result showed that the accumulative error between torque feedback of steering wheel and wheel load torque is obviously reduced after optimization, and the feedback feeling of drivers to road sense has been strengthened.
목차
1. Introduction
2. Principles of Electric Hydraulic Power Steering System
2.1. EHPS Principle
2.2. Steering Road Sense
3. Analysis of Mathematical Model of Steering Wheel Torque Feedback
3.1. Analysis of Hydraulic Damping Coefficient
3.2. Analysis of Hydraulic Power Coefficient
3.3. Damping Ratio Analysis of Hydraulic Power System
4. Mixed H2/H∞ Controller Design Optimized Based on Genetic Algorithm
4.1. Overview of Control System
4.2. Design of Mixed H2/H∞ Control
4.3. Mixed H2/H∞ Controlled Optimized by Genetic Algorithm
5. System Simulation
6. Conclusion
Acknowledgement
References