Novel control strategy of torque pulsations on a hybrid vehicle

Abstract

Abstract

In conventional internal combustion engines the periodic fuel combustion in cylinders and oscillating masses results in a pulsating engine torque. In hybrid power trains the electrical motor can be used to control such pulsations. In the paper, the authors propose a novel control strategy of torque pulsations on a hybrid vehicle. Using an active filter and an a.c. machine, which is mounted on the crankshaft to generate an inverse torque sequence, reduces the combustion engine pulsations. The control strategy is based on a multiobjective state feedback synthesis. A complete modelling of the hybrid propulsion of the vehicle is achieved. Simulation results highlight the interest of the control scheme.