An internal combustion engine, the ICE including a turbocharger and at least one cylinder comprising an inlet for supplying the air to the at least one cylinder and control system for controlling air supply to the ICE, the control system comprising: - a container for compressed air storage; - a conduit for supplying the compressed air from the container to the inlet of the at least one cylinder; - a mechanically controlled valve arrangement for supplying the compressed air to the at least one cylinder from the conduit, the mechanically controlled valve arrangement arranged at an air intake port of the cylinder and comprising a first valve for supplying ordinary air to the at least one cylinder, the first valve being movable between a closed position in which the ordinary air cannot be supplied to the at least one cylinder and an open position in which the ordinary air is supplied to the at least one cylinder, the first valve including an internal passage connected to the conduit for supplying the compressed air to the at least one cylinder therethrough, wherein the mechanically controlled valve arrangement comprising a second valve movably arranged within said first valve and configured to control the flow of the compressed air to said cylinder, wherein the second valve being movable between a closed position in which the compressed air cannot be supplied to the at least one cylinder and an open position in which the compressed air may be supplied to the at least one cylinder; - an electrically controlled valve arranged with the conduit and provided for controlling the supply of the compressed air to the at least one cylinder, and - a control unit connected to and configured for operating the electrically controlled valve, characterized in that the control unit is configured to: - determine, based on a current operational mode for the ICE, an amount of the compressed air that is to be injected into the cylinder through the mechanically controlled valve arrangement, - determine an air mass within the container using a sensor adapted for monitoring the air pressure within the container, - determine a boost pressure of the turbocharger, - determining a period for activating the electrically controlled valve, and - activate, during the determined period, the electrically controlled valve for supplying the determined amount of compressed air to the at least one cylinder only if the determined air mass within the container is above a predetermined threshold and when the boost pressure of the turbocharger is determined to be below a predetermined threshold. - a container for compressed air storage; - a conduit for supplying the compressed air from the container to the inlet of the at least one cylinder; - a mechanically controlled valve arrangement for supplying the compressed air to the at least one cylinder from the conduit, the mechanically controlled valve arrangement arranged at an air intake port of the cylinder and comprising a first valve for supplying ordinary air to the at least one cylinder, the first valve being movable between a closed position in which the ordinary air cannot be supplied to the at least one cylinder and an open position in which the ordinary air is supplied to the at least one cylinder, the first valve including an internal passage connected to the conduit for supplying the compressed air to the at least one cylinder therethrough, wherein the mechanically controlled valve arrangement comprising a second valve movably arranged within said first valve and configured to control the flow of the compressed air to said cylinder, wherein the second valve being movable between a closed position in which the compressed air cannot be supplied to the at least one cylinder and an open position in which the compressed air may be supplied to the at least one cylinder; - an electrically controlled valve arranged with the conduit and provided for controlling the supply of the compressed air to the at least one cylinder, and - a control unit connected to and configured for operating the electrically controlled valve, - determine, based on a current operational mode for the ICE, an amount of the compressed air that is to be injected into the cylinder through the mechanically controlled valve arrangement, - determine an air mass within the container using a sensor adapted for monitoring the air pressure within the container, - determine a boost pressure of the turbocharger, - determining a period for activating the electrically controlled valve, and - activate, during the determined period, the electrically controlled valve for supplying the determined amount of compressed air to the at least one cylinder only if the determined air mass within the container is above a predetermined threshold and when the boost pressure of the turbocharger is determined to be below a predetermined threshold.