Adaptive damping of torque pulsation using a starter generator-opportunities and boundaries

In conventional combustion engines, the combustion process and oscillating masses produce torque pulsation which affects the power train life cycle and reduces the driver´s comfort. It has been suggested to reduce this pulsation using a starter generator device to apply an inverse torque sequence to the crankshaft. Offering new opportunities, this concept also faces boundaries due to both limited power and additional losses of the starter generator. In this paper, an approach for adaptive damping employing a harmonic activation neural network (HANN) is presented. Furthermore, the restrictions mentioned above are discussed. Simulation results are added for illustration