在现代小型车中电动辅助转向(EPAS)系统正逐步取代传统的转向系统。电动助力转向系统的主要优点是具有减少能源消耗的能力。本文论述了GA-PID算法相对常规PID方法可实现节能减排的潜力。有刷直流电机安装在转向柱提供辅助转矩的驱动,这种配置被称为C型电动助力转向系统,结果表明GA-PID控制器与PID控制器相比较可以减少能源消耗。 In modern small cars, electric assist steering (EPAS) systems are gradually replacing traditional steering systems. The main advantage of electric power steering systems is the ability to reduce energy consumption. This paper discusses the GA-PID algorithm relative to the conventional PID method can achieve the potential of energy-saving emission reduction. Brushed DC motors mounted on the steering column provide auxiliary torque drive, a configuration known as a C-type electric power steering system. The results show that the GA-PID controller can reduce energy consumption compared to a PID controller.