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: A method and system for controlling a vehicle, according to which it is determined whether the vehicle is on a slope; it is detected whether the internal-combustion engine is turned on; it is detected whether the vehicle is stationary; a parking brake is activated automatically and independently of the action of the driver, by driving a respective servo control if the vehicle is on a slope, if the internal-combustion engine is turned on and if the vehicle is stationary; and the parking brake is disengaged automatically and independently of the action of the driver, by driving the corresponding servo control when the clutch is disengaged by a corresponding servo control for transmitting the torque generated by an internal-combustion engine of the vehicle to the driving wheels.

Abstract: A double-clutch gearchange presenting: two primary shafts; a secondary shaft; a plurality of pairs of gear wheels, each of which couples mechanically the primary shaft, to the secondary shaft, defines a respective gear speed, and has a primary gear wheel mounted on the primary shaft and a secondary gear wheel that is mounted on the secondary shaft and meshes permanently with the primary gear wheel; a plurality of synchronizers, each of which is mounted coaxial to a shaft between two gear wheels of two pairs of gears and is designed to be actuated for engaging alternatively the two gear wheels to the shaft; a plurality of forks, which actuate the synchronizers and are divided into two distinct groups, each of which is associated to a respective primary shaft; two fingers, each of which is associated to a set of forks for actuating all and exclusively the forks of the set of forks themselves; a single control shaft; and a single gear actuator connected to the control shaft.

Abstract: A method for controlling a vehicle presenting the steps of: verifying, at starting of an internal-combustion engine, whether a memory of calibrations contains the function of transmissibility of a clutch and/or the effective positions of engagement and selection of the gears in a gearchange; sending to the driver, if the memory of calibrations does not contain the function of transmissibility of the clutch and/or the effective positions of engagement and selection of the gears in the gearchange, a signal of start of a first self-calibration step, during which the driver must leave the internal-combustion engine turned on and the vehicle stationary; selecting and engaging a number of times, during the first self-calibration step, all the gears of the gearchange autonomously from the driver for determining the effective positions of engagement and selection of the gears in the gearchange; disengaging and engaging, during the first self-calibration step, the clutch with the gearchange in neutral and autonomously

Abstract: A method and system for controlling a vehicle, according to which it is determined whether the vehicle is on a slope; it is detected whether the internal-combustion engine is turned on; it is detected whether the vehicle is stationary; a parking brake is activated automatically and independently of the action of the driver, by driving a respective servo control if the vehicle is on a slope, if the internal-combustion engine is turned on and if the vehicle is stationary; and the parking brake is disengaged automatically and independently of the action of the driver, by driving the corresponding servo control when the clutch is disengaged by a corresponding servo control for transmitting the torque generated by an internal-combustion engine of the vehicle to the driving wheels.

Abstract: A dual clutch transmission unit for a motor vehicle is adapted to transmit the movement to an automatic gear change provided with two ranks of gears; the transmission unit has a rotary movement input member adapted to be driven in rotation by the engine of the motor vehicle and two output shafts which are adapted to be rigidly connected to respective input shafts of the gear change and bear respective clutch devices which are adapted to receive the movement from the rotary member and are each associated with a relative rank of gears of the gear change; one of the clutch devices is disengaged and the other is engaged in sequence by an actuator device provided with a single actuator and a movement sleeve coaxial with one another.

Abstract: A dual clutch transmission unit for a motor vehicle is adapted to transmit the movement to an automatic gear change provided with two ranks of gears; the transmission unit has a rotary movement input member adapted to be driven in rotation by the engine of the motor vehicle and two output shafts which are adapted to be rigidly connected to respective input shafts of the gear change and bear respective clutch devices which are adapted to receive the movement from the rotary member and are each associated with a relative rank of gears of the gear change; one of the clutch devices is disengaged and the other is engaged in sequence by an actuator device provided with a single actuator and a movement sleeve coaxial with one another.

Abstract: A transmission unit for a vehicle has a clutch unit provided with a flywheel adapted to be coupled to a drive shaft of the vehicle, and a motion output shaft adapted to be connected to an input shaft of a gear change, the transmission unit further comprising a braking device of the output shaft and a single actuator unit common to the clutch unit and the braking device in order to actuate this braking device when the clutch unit is in a disengaged condition.

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: A control device for controlling a clutch of a vehicle wherein an actuator is connected to and provides for operating the clutch, the work position of which is determined by a position sensor which supplies a measured position signal to a control device receiving an information signal and supplying a control signal for the actuator; the control device has a monitor circuit for determining malfunctioning of the position sensor and supplying a fault signal; and a virtual sensor device for estimating the work position of the clutch to supply the control device, in the presence of the fault signal, with a virtual position signal instead of the measured position signal.

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: A control device for controlling a clutch of a vehicle wherein an actuator is connected to and provides for operating the clutch, the work position of which is determined by a position sensor which supplies a measured position signal to a control device receiving an information signal and supplying a control signal for the actuator; the control device has a monitor circuit for determining malfunctioning of the position sensor and supplying a fault signal; and a virtual sensor device for estimating the work position of the clutch to supply the control device, in the presence of the fault signal, with a virtual position signal instead of the measured position signal.

Abstract: A control system for a servo-assisted automatic gearbox in which the gearbox control unit communicates by means of a data line with the engine management unit in such a way as to optimise the gear-change operation. In particular, the gearbox control unit transmits to the engine management unit, during the course of the various phases A, B, C, D, E of the gear-change operation, the target speed of rotation or desired torque and receives instantaneous information relating to the speed of rotation and delivered torque so as to be able to perform the clutch engaging and disengaging operations and the gear engaging and disengaging operations in an optimal manner.