CAJ | 학술논문

研究某小型稻谷脱粒机动力控制系统的开环控制策略。采用“逐步回归法”和“方差扩大因子法”得出功率和发动机转速为节气门开度模型的主要影响因素，并拟合了模型的多元线性回归方程。实验结果表明，回归方程拟合精确度高，预测值与观测值之间的相对误差都低于5％。利用回归方程取代节气门开度的 MAP 图进行开环控制编程，应用新控制系统后，超调量下降了7．69％。
연구모소형도곡탈립궤동력공제계통적개배공제책략。채용“축보회귀법”화“방차확대인자법”득출공솔화발동궤전속위절기문개도모형적주요영향인소，병의합료모형적다원선성회귀방정。실험결과표명，회귀방정의합정학도고，예측치여관측치지간적상대오차도저우5％。이용회귀방정취대절기문개도적 MAP 도진행개배공제편정，응용신공제계통후，초조량하강료7．69％。
A study on open -loop control strategy of power control system for some small rice thresher was carried out . The power and engineer speed were selected as the effect factors of throttle percentage model by the analysis basis of step -wise and variance inflation factor ,and a multivariate linear regression equation for model was fitted .The result shows the regression has a high accuracy , and the relative errors between the observations and predictions are less than 5%.The re-gression instead of map of throttle percentage can be used to software programming for open -loop control , and the over-shoot is down by 7 .69%based on the application of new control system .