智能汽车防撞系统中的电力控制优化

Power Control Optimization for Intelligent Vehicle Anticollision System

智能汽车的防撞系统电力控制是一个多元耦合的非线性控制过程,对电力控制的优化设计可以提高汽车防撞系统的可靠性的稳定性。传统的电力控制采用超阻尼协调控制方法,在汽车遇到突发事故时电力控制的输出功率出现差拍谐振,控制性能不好,提出一种基于反馈线性化逆变控制的智能汽车防撞系统中的电力控制优化算法。分析智能汽车防撞系统的组成和工作原理,智能汽车防撞系统电力控制单元分为传感器单元、电控单元和执行器,对电力控制模块进行硬件电路设计,基于反馈线性化逆变控制算法,采用双向流动补偿的思想,对每个不同的车轮,控制电磁阀使用不同的制动压力,实现对智能汽车防撞系统电力控制算法改进。仿真实验表明,采用该方法能有效提高对电力控制的鲁棒性和可靠性,电力控制功率增益较高,有效保障汽车行车安全。

The power control of intelligent vehicle antieollision system is a multi taetor coupnng nonnnear cuntrol process, and its optimization design can improve the reliability and stability of the automobile antieollision system. Traditional power control is poor in control performance since it uses super damping coordination control method and power output may have beat resonance in the case of the automobile emergency. This paper proposes a power control optimization algorithm for smart ear anticollision system based on feedback lineariza- tion inverter control. The composition and working principle of the smart car anticollision system are analyzed ： the control unit can he divided into sensor unit, electronic control unit and an actuator. The hardware circuit of the power control module is designed based on feedback linearization inverter control algorithm and using two- way flow compensation. On each wheel, control solenoid valve uses different braking pressures. The simulation experiments show that the method can effectively improve the robustness and reliability of the power control, and effectively guarantee the vehicle safety.