Abstract: A method and unit for shifting gear in a power-assist transmission; to shift gear, a series of operations are performed in sequence, and each of which must be completed prior to completion of the next operation; for each operation, a predicted time delay is estimated corresponding to the time lapse between the instant the operation is commanded and the instant the operation is actually completed; and the operations are commanded successively as a function of the predicted delay times, so that an operation is commanded before the preceding operation has actually been completed.

Abstract: A method of gear shifting in a servo-controlled gearbox. The method generates an oscillation on angular velocities of primary and secondary shafts of the gearbox, separates the primary shaft from the secondary shaft thus disengaging a first current gear when the oscillation has taken the angular velocity of the primary shaft close to the angular velocity that the primary shaft must assume to engage a second next gear, and connects the primary shaft to the secondary shaft thus engaging the second next gear when the oscillation has led the angular velocity of the secondary shaft to equalize the current angular velocity of the primary shaft multiplied by the transmission ratio of the second next gear.

Abstract: A rear-drive vehicle having a self-locking differential; a regulating device for regulating the lock percentage of the differential; a number of sensors for real-time detecting dynamic parameters of the vehicle; and a central control unit for controlling the regulating device to regulate the lock percentage of the differential as a function of the dynamic parameters of the vehicle.

Abstract: A method of gear shifting in a servo-controlled gearbox. The method generates an oscillation on angular velocities of primary and secondary shafts of the gearbox, separates the primary shaft from the secondary shaft thus disengaging a first current gear when the oscillation has taken the angular velocity of the primary shaft close to the angular velocity that the primary shaft must assume to engage a second next gear, and connects the primary shaft to the secondary shaft thus engaging the second next gear when the oscillation has led the angular velocity of the secondary shaft to equalize the current angular velocity of the primary shaft multiplied by the transmission ratio of the second next gear.

Abstract: A method and unit for shifting gear in a power-assist transmission; to shift gear, a series of operations are performed in sequence, and each of which must be completed prior to completion of the next operation; for each operation, a predicted time delay is estimated corresponding to the time lapse between the instant the operation is commanded and the instant the operation is actually completed; and the operations are commanded successively as a function of the predicted delay times, so that an operation is commanded before the preceding operation has actually been completed.

Abstract: A vehicle (1) having a central control unit (13) which supervises operation of active components of the vehicle (1), and modifies the operating parameters of the active components to modify the dynamic performance of the vehicle (1); and a selection device (15) which is located inside the passenger compartment (11) of the vehicle (1), and is operated by the driver to transmit a selected dynamic performance of the vehicle (1) to the central control unit (13); the selection device (15) includes a switch (16) fitted to the steering wheel (12) of the vehicle (1) and rotatable between at least four different positions (A, B, C, D), each corresponding to a respective dynamic performance of the vehicle (1).

Abstract: A vehicle (1) having a central control unit (13) which supervises operation of active components of the vehicle (1), and modifies the operating parameters of the active components to modify the dynamic performance of the vehicle (1); and a selection device (15) which is located inside the passenger compartment (11) of the vehicle (1), and is operated by the driver to transmit a selected dynamic performance of the vehicle (1) to the central control unit (13); the selection device (15) includes a switch (16) fitted to the steering wheel (12) of the vehicle (1) and rotatable between at least four different positions (A, B, C, D), each corresponding to a respective dynamic performance of the vehicle (1).

Abstract: A rear-drive vehicle having a self-locking differential; a regulating device for regulating the lock percentage of the differential; a number of sensors for real-time detecting dynamic parameters of the vehicle; and a central control unit for controlling the regulating device to regulate the lock percentage of the differential as a function of the dynamic parameters of the vehicle.