【摘要】 针对车用发动机VVT系统工况变化复杂、非线性和滞后性等特点,设计了双积分的PID控制策略,同时加入了积分预控的功能,并对微分部分作了自调节处理。通过试验验证了本VVT控制策略的可行性与实用性。更多还原

【Abstract】 As the operating status of the VVT system is complex,nonlinear and delayed,this paper designs a dual integration PID control strategy,and adds the function of I-part precontrol.Besides,this strategy can enable D-part automatically.Finally,the experimental study is carried out on a test vehicle,validates the feasibility and practicability of the control strategy.更多还原