Abstract: An air supercharging device is provided for an internal combustion engine. The air supercharging device includes an air inlet, an electrical compressor, a heat exchanger and a cooling circuit. The cooling circuit includes an air intake conduit and an air recirculation conduit. The intake conduit extends between the outlet of the heat exchanger and the electrical compressor. The cooling circuit is configured to capture a fraction of the cooled compressed air. The air recirculation conduit extends between the electrical compressor and adjacent an inlet of the intake manifold.

Abstract: An air supercharging device is provided for an internal combustion engine. The air supercharging device includes an air inlet, an electrical compressor, a heat exchanger and a cooling circuit. The cooling circuit includes an air intake conduit and an air recirculation conduit. The intake conduit extends between the outlet of the heat exchanger and the electrical compressor. The cooling circuit is configured to capture a fraction of the cooled compressed air. The air recirculation conduit extends between the electrical compressor and adjacent an inlet of the intake manifold.

Abstract: A system for controlling a power train of a motor vehicle, the power train configured to deliver an engine torque to a hydraulic torque converter. The control system includes a mechanism determining a temperature gradient of oil of the hydraulic torque converter, a mechanism estimating a curve of force of resistance to forward travel of the motor vehicle depending on a practical mass of the motor vehicle based on the temperature gradient, and a controller controlling the engine torque depending on the estimation.