Considering the high order nonelinearly and mutiple - input - mutiple - output coupling effect of the system , different driving condition and complex external disturbance , hybrid fuzzy - pid control with parameters selfturning is adopted in engine speed control system , the simulation which is integrated with vehicle model in the matlab environment shows that the performance and fuel economy of the car with pscvt is better than those of car with the standard manually shifted transmission 考慮到車輛系統(tǒng)的高階非線性和輸入輸出的耦合效應(yīng)及汽車運(yùn)行的復(fù)雜工況和外界環(huán)境干擾等因素的影響,提出了混合模糊? pid控制算法用于變速系統(tǒng)速比的控制,并結(jié)合整車的數(shù)學(xué)模型在matlab下進(jìn)行了計(jì)算機(jī)的動(dòng)態(tài)仿真。