Improving hybrid engine performance by synchronizing the internal combustion engine with the electric motor

Torque is a measure of force that rotates an object through an axis. It causes an object to gain angular acceleration just as force which causes an object to accelerate in linear kinematics. In perspective of vehicles torque is related to a vehicle's acceleration and ability of pulling load. The purpose of this thesis is to increase the performance of an internal combustion engine by operating it synchronously with electric motor. In this manner, the internal combustion crank mechanism and electric motor were mathematically modeled via Matlab/Simulink. Position, velocity, and acceleration formulas were derived by considering the forces acting on the crank mechanism. The torque of electric motor was also calculated for internal combustion engine that has 1200, 1400 and 1600 rpm for constant engine revolutions. The net torque of the hybrid drive system is considered as the summation of the total torque of electric motor and total torque of the internal combustion engine. As a result of numerical analysis of 3 investigated models, It was found as average torque increased by 40.31% - 61.60% for 1200 rpm, 47.88% - 68.56% for 1400 rpm, and 50.86% - 86.25% for 1600 rpm. It was detected that the maximum increase was 86.25% for 1600 rpm 45 degrees of ignition advance.