Research and Analysis of Tractor Traction Test Characteristics with Mechanical Transmission
Traction test is one of the most important tests in agricultural tractor test and appraisal,in which traction power is an important technical index to measure tractor power performance and economic benefits.In this paper,the parameters of tractor running speed,traction power,traction force and slip rate at different gears are measured,and the curve dia-gram of parameter relationship is drawn based on the measured data results.The curve change diagram of running speed and traction force,running speed and traction power,traction force and driving wheel slip rate,traction specific fuel con-sumption and traction power are drawn respectively.By analyzing the change relationship between parameters,the fitting equations of linear and quadratic polynomial between parameters are obtained by mathematical operation,and the most re-al regression equation is obtained by comparing the value of the coefficient of determination R2.The final test results show that the regression equation has certain guidance and application value for the study of agricultural tractor traction power test,and can predict the parameters in the traction power test in advance.