Three phase BLDC motor used in automotive application have good efficiency and good controllability over wide range of speed and to align the rotor position of BLDC motor by suitable starting method. Based on electromotive force the position is sensed by without current sensor. Stator current and time period alignment of rotor position is adjusted by pulse width of switching device. The additional current sensor and any information of motor parameter not necessary at start up operation. The fundamental principle of technique is to determine the initial position of permanent magnet by the time period of discharge of stator winding , which are excited before discharge. For this purpose , an approach a new flux linkage function is defined , that is speed independent .Experiment are implemented on a single chip DSP controller to demonstrate the suggested starting up technique. A starting procedure of the motor is also discussed to detect the rotor position at a standstill. The position sensorless drive is proposed in this paper based on the detection of back emf technique especially at a lower speed.__ampersandsignnbsp;Moreover the complex phase shift circuit eliminated. Due to low cost ,the proposed control algorithm is particularly suitable for cost sensitive products. The output of the proposed system is verified by matlab simulink.