Drivetrain and control method for series hybrid vehicle

The chain consists of a heat engine which drives an alternator to supply electric traction motors through a rectifier and inverter. An electronic control unit models the heat engine, controls the position of the heat engine air control actuator and calculates by iteration a reference torque for the electric motors. The modelling is based on a speed /power curve (Y) which has points (P1,P2,P3) of least fuel consumption and an idling point (P0)