Abstract: A hybrid vehicle comprising: a pair of drive wheels; an internal combustion heat engine; an electrically controlled transmission; a control unit of the heat engine; a control unit of the transmission; a passenger compartment having a driver's seat provided with a plurality of controls that can be operated by the driver and comprise a steering wheel, an accelerator pedal, a brake pedal and transmission control means; and an electronic control unit of the transmission control means that is physically installed in the passenger compartment close to the transmission control means, fulfills the function of acquiring the current position of the transmission control means and also fulfills the function of vehicle management unit by receiving the orders given by the driver and by providing the control unit of the heat engine and the control unit of the transmission with the corresponding objectives to meet the driver's needs.

Abstract: A hybrid vehicle comprising: a pair of drive wheels; an internal combustion heat engine; an electrically controlled transmission; a control unit of the heat engine; a control unit of the transmission; a passenger compartment having a driver's seat provided with a plurality of controls that can be operated by the driver and comprise a steering wheel, an accelerator pedal, a brake pedal and transmission control means; and an electronic control unit of the transmission control means that is physically installed in the passenger compartment close to the transmission control means, fulfils the function of acquiring the current position of the transmission control means and also fulfils the function of vehicle management unit by receiving the orders given by the driver and by providing the control unit of the heat engine and the control unit of the transmission with the corresponding objectives to meet the driver's needs.

Abstract: An automatic manual transmission having: at least one primary shaft; at least one secondary shaft; a plurality of gear pairs, each of which mechanically couples the primary shaft to the secondary shaft; a plurality of synchronizers, each of which is mounted coaxial to a shaft, is coupled to a gear of at least one gear pair, and is adapted to be actuated to engage the gear to the shaft; a plurality of forks, which actuate the synchronizers and are movable; a parking lock device which may be actuated to prevent the rotation of the secondary shaft; and a connecting device, which is mechanically connected on one side to a first fork and on the other side to the parking lock device to transmit the movement of the first fork to the parking lock device so as to control the activation and deactivation of the parking lock device itself by exploiting the movement of the first fork.

Abstract: An actuation system for a servo-assisted transmission; the actuation system is provided with: a hydraulic circuit comprising a reservoir containing a control fluid, a hydraulic accumulator containing the pressurized control fluid, and a pump which draws from the reservoir and feeds the hydraulic accumulator; at least a hydraulic actuator comprising at least one actuation chamber and a mobile piston which slides within the actuation chamber; a solenoid valve for connecting the actuation chamber of the hydraulic actuator to the hydraulic accumulator and to the reservoir; and a recirculation circuit, which departs from at least one environment bordering with the actuation chamber of the hydraulic actuator and ends in the reservoir.

Abstract: A double-clutch gearbox includes two primary shafts and at least one secondary shaft. Each of a plurality of gear pairs mechanically couples the primary shaft to the secondary shaft and defines a respective gear. Each gear pair includes a primary gear mounted to the primary shaft and a secondary gear, which is mounted to the secondary shaft and permanently meshes with the primary gear. Synchronizers coaxially mounted to a shaft are coupled to a gear of at least one gear pair and adapted to be actuated to engage the gear with the shaft. Forks that actuate the synchronizers are movably mounted and have corresponding catches. A single control shaft is rotationally mounted about and can be slid axially along a longitudinal axis. A single gear actuator is connected to the control shaft to rotate the control shaft about and axially displace the control shaft along the longitudinal axis.

Abstract: An actuation system for a servo-assisted transmission; the actuation system is provided with: a hydraulic circuit comprising a reservoir containing a control fluid, a hydraulic accumulator containing the pressurized control fluid, and a pump which draws from the reservoir and feeds the hydraulic accumulator; at least a hydraulic actuator comprising at least one actuation chamber and a mobile piston which slides within the actuation chamber; a solenoid valve for connecting the actuation chamber of the hydraulic actuator to the hydraulic accumulator and to the reservoir; and a recirculation circuit, which departs from at least one environment bordering with the actuation chamber of the hydraulic actuator and ends in the reservoir.

Abstract: A fluid recovery system for an automatic transmission unit of a vehicle, provided with a tank containing a fluid, a hydraulic circuit receiving this fluid from the tank, an electrovalve unit supplied by the hydraulic circuit and adapted to control actuator units in order to actuate the opening and closing of a clutch and to perform the selection and engagement/disengagement of the gears of a gear change, the system comprising at least one collection zone adapted to recover the fluid escaping from the actuator units and at least one duct connecting the collection zone to the tank so that the fluid recovered in the collection zone can be returned to the tank.

Abstract: Gear selector device of an automatic transmission in which a first lever which can be operated manually is movable between a rest position and a first operating position to control an down-shift of the gear and a second lever which can be operated manually is movable between a rest position and a first operating position to control an up-shift of the gear engaged. The first and the second lever produce respective second operating positions to control the following operations: the engagement of reverse gear; the selection of an automatic mode of operation of the automatic transmission; and the selection of a ‘sports’-type of mode of operation of the automatic transmission.

Abstract: Transmission system, in which a single double-effect actuator, used to engage/release the gears, comprises a piston which is mobile with reciprocating motion, and has different areas which face first and second chambers of the actuator. The first and second chambers are supplied respectively, directly by a source of pressurised fluid, and by a valve of the proportional type, which is interposed between the source of pressurised fluid and the actuator.

Abstract: A fluid recovery system for an automatic transmission unit of a vehicle, provided with a tank containing a fluid, a hydraulic circuit receiving this fluid from the tank, an electrovalve unit supplied by the hydraulic circuit and adapted to control actuator units in order to actuate the opening and closing of a clutch and to perform the selection and engagement/disengagement of the gears of a gear change, the system comprising at least one collection zone adapted to recover the fluid escaping from the actuator units and at least one duct connecting the collection zone to the tank so that the fluid recovered in the collection zone can be returned to the tank.

Abstract: Gear selector device of an automatic transmission in which a first lever which can be operated manually is movable between a rest position and a first operating position to control an down-shift of the gear and a second lever which can be operated manually is movable between a rest position and a first operating position to control an up-shift of the gear engaged. The first and the second lever produce respective second operating positions to control the following operations: the engagement of reverse gear; the selection of an automatic mode of operation of the automatic transmission; and the selection of a ‘sports’-type of mode of operation of the automatic transmission.