1. A method for managing driving comfort and energy consumption of a power unit of a hybrid vehicle, the power unit comprising at least one internal combustion engine and an electric drive machine, coupled to wheels of the hybrid vehicle by a transmission with gears with discrete ratios, comprising: determining a consumption of the internal combustion engine and an electrical consumption of the electric drive machine; selecting an energy criterion, said energy criterion being based on a sum of the consumption of the internal combustion engine and the electrical consumption of the electric drive machine multiplied by an equivalence factor weighting a supply of energy from the internal combustion engine and a supply of energy of electrical origin; selecting a discomfort criterion, said discomfort criterion being based on a comfort level for a driver in said hybrid vehicle; selecting a mixed criterion based on a sum of the energy criterion and the discomfort criterion; minimizing said mixed criterion resulting in a minimized mixed criterion; and limiting changes of said gears of the transmission based on said minimized mixed criterion thereby managing driving comfort and energy consumption of said hybrid vehicle.