Based on the configuration of hybrid electric system equipped with electric-mechanic continuously variable transmission（EMCVT）system work condition is enumerated.Work condition switching is divided into two situations:the one is engine engages with driveline and the other is engine disengages with driveline.Control logics and targets are drawn and control strategy for condition switching integrated with engine

motor

CVT and clutch are put forward.According to system configuration dynamic mode of hybrid system is built up.Simulation model with MATLAB/SIMULINK is designed and dynamic performances are simulated for engine engage and disengage driveline.The simulation results show that the condition shift quality is highly improved by using control strategies.