Kinematic mechanics modeling method of pure electric vehicle

The invention discloses a kinematic mechanics modeling method of a pure electric vehicle. The method comprises the steps of (S001) calculating a second intermediate quantity K2 and a third intermediate quantity K3 according to grade angles under different vehicle weight and performance conditions; (S002) calculating a first constant a and a second constant b according to travel time T, a running speed v(t) and a travel distance S under different performance conditions; (S003) calculating a first intermediate quantity K1 according to the first constant a and the second constant b; (S004) building a traction time curve relation equation; and (S005) building a power time curve relation equation. The influences caused by the kinematic mechanics process and various parameters of the pure electric vehicle can be accurately described through a traction time curve and a power time curve; and a guidance is provided for performance test and design. The kinematic mechanics modeling method is suitable for the field of pu