Study on adjustment method of force-position comprehensive coefficient

Aiming at the problem of the value of comprehensive coefficient in comprehensive adjustment of force position, an automatic adjustment scheme of comprehensive coefficient was proposed. The relationship between comprehensive coefficient and tillage depth under different tillage conditions was studied by Matlab/simulink. According to the results, the regulation method with tillage resistance as switch was established. Based on the formula of traction resistance, a random signal module was designed to simulate the fluctuation of tillage resistance. In order to verify the control effect of the designed comprehensive coefficient adjustment method, the tillage depth control strategy with the comprehensive coefficient of 0.5 was used for simulation comparison. The results show that the scheme can adjust the comprehensive coefficient in time with the change of tillage resistance, and has good environmental adaptability. The maximum overshoot is reduced by 75.56% compared with the other scheme. The stability of engine load is also taken into account while the ploughing depth is in a reasonable range.