Switched reluctance motors（SRM） with the position sensor have complex structure and low reliability.Study on rotor position estimation method of the non-conducting phase injection pulse. This method is not affected by the motor control method and the influence of winding current beyond saturation threshold. In view of disturbance torque produced by response pulse current

design switched reluctance motor torque optimization system based on pulse injection method. Establish speed controller to change the error of speed into given torque

establish reasonable allocation mechanism

and obtain the given phase torque. Direct instantaneous torque control（DITC） is combined with current closed-loop control to make the phase torque accurately match the given torque

so as to realize the circulation of motor control. The system effectively reduce the torque fluctuations generated by impulse current. The modeling and simulation verify the feasibility of the method that the method has good inhibitory effect for torque ripple on switched reluctance motor with pulse injection sensorless.