基于FPGA的电动助力转向系统  

Electric power steering system based on FPGA

作　　者：许庆[1] 高峰[1] 付安英[2] 徐国艳[1] 

机构地区：[1]北京航空航天大学,北京100191 [2]陕西国际商贸学院,陕西咸阳712000

出　　处：《电子设计工程》2014年第9期167-169,共3页Electronic Design Engineering

基　　金：国家自然科学基金项目(51105021)

摘　　要：采用Verilog硬件描述语言自顶向下的设计方法,通过FPGA实现了车辆电动助力转向系统的设计。论述了计数模块、查询模块与电机控制模块的工作原理,通过对车速、转向盘扭矩和转角查表得到对应的助力控制、回正控制和阻尼控制模式与控制值,实现了车辆低速时的转向轻便性和高速时对驾驶员路感的保证。利用Cyclone EP2C8控制板在实验台架上的实验表明,系统能够实现所设计的功能,并具有较高的响应速度。In order to design the vehicle electric power steering （EPS） system with FPGA,the top-down method with Verilog hardware description language is applied.The algorithm of counting module,looking up module and motor control module is discussed.With input signals of vehicle velocity,steering torque and steering wheel angle,corresponded power steering mode,resetting mode and damping mode and control values are mapped and thus both the handiness at low speed and the driver＇s road sensing at high speed are ensured.Testing on a power steering platform with Cyclone EP2C8 FPGA control board verified the function of the system as with a short responding time.

关 键 词：电动助力转向 FPGA VERILOG 自顶向下 

分 类 号：TN79[电子电信—电路与系统]