Research Of Power Steering Controller

Electric power steering system (Electric Power Steering System,referred to as EPS) with ordinary power steering system has the advantages ofhis, EPS is a power steering technology development trend of a representative.Based on the study of solar electric vehicle projects as the basis, for automotiveelectric power steering system control core, electronic control unit for furtherresearch, the domestic electric power steering system the actual developmentwork has a certain significance.The first part gives a brief introduction of electric power steering systemresearch status at home and abroad, on the basic principle of EPS were a littleunderstanding. On the Chinese now studied some key research institute andthe university to do a detailed list. On this basis, the PID control algorithm aswell as the steering wheel step experiments are a deeper understanding andresearch, the traditional PID control algorithm and fuzzy PID control algorithmfor certain contrast analysis. In the hardware design, the overall design strategy,on this basis, the system module is analyzed and compared, and made for themodules of the system. In the design of the robust performance of system isdiscussed, and the electric power steering system steering characteristics wereanalyzed, and put forward suitable for electric vehicle using the power controlstrategy. The EPS control requirements for the foundation, design and improvethe controller hardware circuit, the electric power steering systemanti-interference performance also made some research and analysis. Do nextsystem design procedures, in the program design of software tools andenvironments to do a detailed explanation. The processor of the main programis compiled, and, on the motor control module to choose. And then on the A/Dinformation collection program and PWM output module program design. At thesame time the software anti-interference performance illustrated. Finally, thesystem control simulation was carried out in all aspects of the design, first of allis to the motor control of the early show, and then on the PID control algorithmsare described, the advantages and disadvantages of adaptive PID control isalso introduced. The PID algorithm is analyzed and the steering wheel anglestep input experiments are described, because the EPS working environment isvery complex so from multiple aspects, and put forward its adaptive capacity ofsingle neuron PID control algorithm, and the digital PID algorithm are analyzed.The final design of the whole process are summarized, and the future prospect.