On Software Development for Electric Power Steering System Based On uCOS-II

Electric Power Steering (EPS) is a full electric system which reduces the amount of steering effort by directly applying the output from an electric motor to the steering system and has attracted much attention for their advantages. Controller design and software development of EPS is one of the key technologies that are critical to the system's design. The constitutions and its operational mechanism of electric power steering system were introduced, and the EPS hardware framework based on the ARM microprocessor was presented and the software development based on usos-ii was designed. The tests were performed and the results confirmed that the system was stable and credible, and can meet the requirements of steering performance. It has practical engineering significance to the implement of EPS motor control strategy, to the improvement and optimization of EPS function and to the steering manipulation safety.