Abstract: The present invention relates to a magnetic gearshift system including a first permanent-magnet multipolar magnetic rotor, a second permanent-magnet multipolar magnetic rotor and a first magnetic or ferromagnetic modulator. According to one aspect of the present invention, the first modulator is configured for taking a first position, corresponding with the first permanent-magnet multipolar magnetic rotor, wherein the first modulator is adapted to modulate the transmission of the first permanent-magnet multipolar magnetic rotor, and a second position, corresponding with the second permanent-magnet multipolar magnetic rotor, wherein the first modulator is adapted to modulate the transmission of the second permanent-magnet multipolar magnetic rotor.

Abstract: Described herein is a method for reducing noise in a driveline of a motor vehicle, the method including detecting a condition initiating a noise event of the driveline by using one or more sensors on board the vehicle; and controlling, as a function of the detected condition and of a signal of said one or more sensors, an actuation of one or more actuators that govern corresponding devices that can be connected to the driveline and configured for generating a torsional pre-load condition in the driveline itself.

Abstract: Described herein is a method for reducing noise in a driveline of a motor vehicle, the method including detecting a condition initiating a noise event of the driveline by using one or more sensors on board the vehicle; and controlling, as a function of the detected condition and of a signal of said one or more sensors, an actuation of one or more actuators that govern corresponding devices that can be connected to the driveline and configured for generating a torsional pre-load condition in the driveline itself.

Abstract: A method for controlling a power assisted propulsion system in a motor vehicle so as to perform a transition from a lower gear to a higher gear without interrupting a driving torque applied to driving wheels; the propulsion system displays an internal combustion engine provided with a drive shaft and a power assisted transmission including: a power assisted mechanical gearbox provided with a primary shaft connectable to the drive shaft and a secondary shaft coupled to a transmission shaft which transmits motion to the driving wheels; a power assisted clutch interposed between the drive shaft and the primary shaft of the gearbox to couple and decouple the drive shaft to the primary shaft of the gearbox; a power assisted brake; and an epicycloidal gear having three rotating elements: a first rotating element coupled to the drive shaft, a second rotating element coupled to the secondary shaft of the gearbox, and a third rotating element coupled to the brake.

Abstract: A method for controlling a power assisted propulsion system in a motor vehicle so as to perform a transition from a lower gear to a higher gear without interrupting a driving torque applied to driving wheels; the propulsion system displays an internal combustion engine provided with a drive shaft and a power assisted transmission comprising in turn: a power assisted mechanical gearbox provided with a primary shaft connectable to the drive shaft and a secondary shaft connected to a transmission shaft which transmits motion to the driving wheels; a power assisted clutch interposed between the drive shaft and the primary shaft of the gearbox to connect and disconnect the drive shaft to the primary shaft of the gearbox; a power assisted brake; and an epicycloidal gear having three rotating elements: a first rotating element connected to the drive shaft, a second rotating element connected to the secondary shaft of the gearbox, and a third rotating element connected to the brake.

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 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.