Abstract: A car having: a frame; two rear drive wheels; two rear suspensions, which support the two rear wheels; a drivetrain having two axle shafts, which transmit the motion to the rear drive wheels; a rear subframe, which is fixed to the frame in four fixing points through the interposition of elastic isolating elements, directly supports at least part of the drivetrain, and provides a coupling for the rear suspensions. The four fixing points are substantially arranged at the same vertical height. The frame has two “C”-shaped elements, each having its two ends in the area of two fixing points. Two stiffening beams are provided, each arranged longitudinally and screwed to the frame in the area of the ends of a corresponding “C”-shaped element.

Abstract: A car having: a frame; two rear drive wheels; two rear suspensions, which support the two rear wheels; a drivetrain having two axle shafts, which transmit the motion to the rear drive wheels; a rear subframe, which is fixed to the frame in four fixing points through the interposition of elastic isolating elements, directly supports at least part of the drivetrain, and provides a coupling for the rear suspensions. The four fixing points are substantially arranged at the same vertical height. The frame has two “C”-shaped elements, each having its two ends in the area of two fixing points. Two stiffening beams are provided, each arranged longitudinally and screwed to the frame in the area of the ends of a corresponding “C”-shaped element.

Abstract: Battery module for an electrical storage system for an electric drive vehicle; wherein the battery module includes: a set of parallel cylindrical chemical batteries arranged side by side, at least two conductive plates arranged on said opposite sides and welded to the corresponding opposite terminals of said set of batteries, at least one refrigerated wall set adherent to one of said at least two conductive plates, at least one pad sandwiched between said at least one refrigerated wall and said at least one respective conductive plate, in which said pad is made of an electrically insulating and thermally conductive material.

Abstract: A road vehicle with hybrid drive having: at least one pair of drive wheels; an internal combustion engine; a reversible electric machine; and a dual-clutch transmission. The dual-clutch transmission has: a first primary shaft and a second primary shaft; a first clutch interposed between the internal combustion engine and the first primary shaft; and a second clutch interposed between the internal combustion engine and the second primary shaft; a third clutch, which is interposed between a shaft of the electric machine and the first primary shaft so as to connect/disconnect the shaft of the electric machine to/from the first primary shaft; and a fourth clutch, which is interposed between the shaft of the electric machine and the second primary shaft so as to connect/disconnect the shaft of the electric machine to/from the second primary shaft.

Abstract: An electric power system of a vehicle with an electric drive obtained by means of an electric machine; the electric power system has: a storage system provided with a first pack of chemical batteries and with a second pack of chemical batteries; a first electronic DC-AC power converter, which has a direct current side connected to the first pack of chemical batteries and an alternating current side connected to the electric machine; and a second electronic DC-AC power converter, which has a direct current side connected to the second pack of chemical batteries and an alternating current side connected to the electric machine, in addition and in parallel to the first electronic power converter, so that the electric machine can be controlled by the first electronic power converter or by the second electronic power converter.

Abstract: A road vehicle with hybrid drive having: at least one pair of drive wheels; an internal combustion engine; a reversible electric machine; and a dual-clutch transmission. The dual- clutch transmission has: a first primary shaft and a second primary shaft; a first clutch interposed between the internal combustion engine and the first primary shaft; and a second clutch interposed between the internal combustion engine and the second primary shaft; a third clutch, which is interposed between a shaft of the electric machine and the first primary shaft so as to connect/disconnect the shaft of the electric machine to/from the first primary shaft; and a fourth clutch, which is interposed between the shaft of the electric machine and the second primary shaft so as to connect/disconnect the shaft of the electric machine to/from the second primary shaft.

Abstract: An electric power system of a vehicle with an electric drive obtained by means of an electric machine; the electric power system has: a storage system provided with a first pack of chemical batteries and with a second pack of chemical batteries; a first electronic DC-AC power converter, which has a direct current side connected to the first pack of chemical batteries and an alternating current side connected to the electric machine; and a second electronic DC-AC power converter, which has a direct current side connected to the second pack of chemical batteries and an alternating current side connected to the electric machine, in addition and in parallel to the first electronic power converter, so that the electric machine can be controlled by the first electronic power converter or by the second electronic power converter.

Abstract: Battery module for an electrical storage system for an electric drive vehicle; wherein the battery module includes: a set of parallel cylindrical chemical batteries arranged side by side, at least two conductive plates arranged on said opposite sides and welded to the corresponding opposite terminals of said set of batteries, at least one refrigerated wall set adherent to one of said at least two conductive plates, at least one pad sandwiched between said at least one refrigerated wall and said at least one respective conductive plate, in which said pad is made of an electrically insulating and thermally conductive material.