Abstract: A dual-clutch transmission includes an odd gears clutch, an odd gears shaft supporting at least two odd-numbered rotary gears, an even gears clutch, and an even gears shaft supporting at least two even-numbered rotary gears. A driven rotary shaft is selectively connectable to one respective said odd- or even-numbered gear at a time. The dual-clutch transmission includes first and second range selection gears to transfer drive from the driven rotary shaft to an output shaft so as selectively to permit selection of at least a first range transmission ratio or a second range transmission ratio. The dual-clutch transmission further includes a first bypass drive line to drive engagement of at least two mutually engaged bypass rotary gears with the output shaft, giving rise to a first intermediate transmission ratio.

Abstract: A clutch assembly for a transmission of an agricultural work vehicle. The clutch assembly includes a housing, a clutch pack located within the housing, a piston chamber located within the housing, and a piston located within and slidable relative to the piston chamber. The piston is operably connected to the clutch pack for engaging and disengaging the clutch pack. The clutch assembly further includes a balance chamber that is located within the housing. The lower boundary wall of the balance chamber and the lower boundary wall of the piston chamber are radially separated from one another by a substantial distance.

Abstract: A clutch assembly for a transmission of an agricultural work vehicle. The clutch assembly includes a housing, a clutch pack located within the housing, a piston chamber located within the housing, and a piston located within and slidable relative to the piston chamber. The piston is operably connected to the clutch pack for engaging and disengaging the clutch pack. The clutch assembly further includes a balance chamber that is located within the housing. The lower boundary wall of the balance chamber and the lower boundary wall of the piston chamber are radially separated from one another by a substantial distance.

Abstract: A transmission for a work vehicle with an engine and a drivetrain. The transmission includes a plurality of shafts, a plurality of gears arranged on the plurality of shafts, and a plurality of clutches arranged on the plurality of shafts. The plurality of clutches includes a first clutch, a second clutch, and a third clutch. The transmission provides for full-power shifting throughout at least 24 speeds with only a single clutch swap required for each shift.

Abstract: A dual-clutch transmission includes an odd gears clutch, an odd gears shaft supporting at least two odd-numbered rotary gears, an even gears clutch, and an even gears shaft supporting at least two even-numbered rotary gears. A driven rotary shaft is selectively connectable to one respective said odd- or even-numbered gear at a time. The dual-clutch transmission includes first and second range selection gears to transfer drive from the driven rotary shaft to an output shaft so as selectively to permit selection of at least a first range transmission ratio or a second range transmission ratio. The dual-clutch transmission further includes a first bypass drive line to drive engagement of at least two mutually engaged bypass rotary gears with the output shaft, giving rise to a first intermediate transmission ratio.

Abstract: A method of controlling the motion of a coupled tractor-trailer combination in which the tractor includes a drive train having an engine and at least one ground-engaging member driveably connected to thereto via an adjustable ratio transmission may generally include detecting whether one or more preconditions relating to motion of the tractor-trailer combination is/are occurring. The method may also include detecting whether one or more further prevailing conditions that are indicative of a likelihood of adverse vehicle motion is/are occurring. In addition, if at least one precondition and at least one further condition are occurring, the method may include effecting a control action selected from the list including activating the at least one trailer brake and/or adjusting a adjustable parameter of the drive train in order to effect controlled deceleration of the tractor-trailer combination.

Abstract: An agricultural vehicle comprises front and rear axle assemblies supported in mutually spaced relation by one or more vehicle frame members that also support a drive train comprising: a) one or more air compressors; b) one or more fuel sources; c) a fuel cell comprising one or more fuel cell modules; and d) one or more electric motors, that are operatively connected together. The air compressor feeds air to the fuel cell, the or each fuel source feeds fuel to the fuel cell and the electric motors are connected or connectable to the fuel cell such that electrical power generated during operation of the fuel cell causes activation of one or more of the motors to power the vehicle.

Abstract: An electronically controlled brake system for trailer tractors. The system having a device for braking the tractor and trailer, and for steer-by-braking the tractor only, tractor brakes, and further devices for braking the trailer only. The further devices include a normally-ON valve allowing simultaneous braking of the tractor and trailer. The valve is switched to OFF when the steer-by-braking function is activated.

Abstract: A trailer braking device having a high-pressure main hydraulic circuit of a tractor to which a trailer is attached; to a hydraulic circuit of a master brake cylinder of the tractor; and a trailer brake valve having a driver connected hydraulically to the high-pressure main hydraulic circuit and to the hydraulic circuit. The driver of the device has a piston which is subjected to a first action by an independent circuit that is activated, for example, by the stop lights and a second action produced by the operator, such as a foot acting on a brake pedal, on the hydraulic circuit of the master brake cylinder.

Abstract: An agricultural vehicle comprises front and rear axle assemblies supported in mutually spaced relation by one or more vehicle frame members that also support a drive train comprising: a) one or more air compressors; b) one or more fuel sources; c) a fuel cell comprising one or more fuel cell modules; and d) one or more electric motors, that are operatively connected together. The air compressor feeds air to the fuel cell, the or each fuel source feeds fuel to the fuel cell and the electric motors are connected or connectable to the fuel cell such that electrical power generated during operation of the fuel cell causes activation of one or more of the motors to power the vehicle.

Abstract: An electronically controlled brake apparatus (10) for tractors. The apparatus (10) having:—devices (11, 12, 13a, 13b, 15, C1, C2) for producing and distributing compressed fluid;—a device (14) for braking and steer-by-braking (SBF) the tractor; and—compressed-fluid modulating devices (18, 19, 24, 25) for activating tractor brakes (21, 23, 27, 29). The modulating devices (18, 19, 24, 25) are connected electrically to a brake-control electronic central control unit (CNT). And the apparatus (10) also has a device (DS) for supplying high-pressure fluid to the rear modulating devices (24, 25) and selecting the maximum pressure of the fluid supply to the rear modulating devices (24, 25), depending on the function to be performed.

Abstract: An electronically controlled brake system for trailer tractors. The system having a device for braking the tractor and trailer, and for steer-by-braking the tractor only, tractor brakes, and further devices for braking the trailer only. The further devices include a normally-ON valve allowing simultaneous braking of the tractor and trailer. The valve is switched to OFF when the steer-by-braking function is activated.

Abstract: A CVT hydromechanical drive having: an engine (12) rotating a propeller shaft (11); a hydrostatic unit (13), in turn having a hydraulic pump (14) and a hydraulic motor (15) connected hydraulically to each other; an epicyclic transmission (16); a number of clutches (CH1, CH2, CH3); a differential; and an assembly (PTO). The hydromechanical drive (10) is characterized in that the hydrostatic unit (13) is substantially U-shaped, and in that a longitudinal axis of symmetry (b) of the pump (14) is substantially in line with a longitudinal axis of symmetry (a) of the propeller shaft (11).

Abstract: A trailer braking device having a high-pressure main hydraulic circuit of a tractor to which a trailer is attached; to a hydraulic circuit of a master brake cylinder of the tractor; and a trailer brake valve having a driver connected hydraulically to the high-pressure main hydraulic circuit and to the hydraulic circuit. The driver of the device has a piston which is subjected to a first action by an independent circuit that is activated, for example, by the stop lights and a second action produced by the operator, such as a foot acting on a brake pedal, on the hydraulic circuit of the master brake cylinder.

Abstract: A CVT hydromechanical drive having: an engine (12) rotating a propeller shaft (11); a hydrostatic unit (13), in turn having a hydraulic pump (14) and a hydraulic motor (15) connected hydraulically to each other; an epicyclic transmission (16); a number of clutches (CH1, CH2, CH3); a differential; and an assembly (PTO). The hydromechanical drive (10) is characterized in that the hydrostatic unit (13) is substantially U-shaped, and in that a longitudinal axis of symmetry (b) of the pump (14) is substantially in line with a longitudinal axis of symmetry (a) of the propeller shaft (11).

Abstract: Steering equipment is provided with a transmission shaft (4) mounted so that it can turn within a steering column (2), and with a control device (8) for actuating an operating unit; the control device (8) being provided with a switch (9) and a control member (18), which has substantially the shape of the sector of a circle and can move between an operative position, a resting position in which the control member (18) sets itself about a longitudinal axis (3) of the steering column (2), and a position of actuation of the switch (9).

Abstract: A farm implement of a tractor is hitched to two lift arms, each of which is moved by a respective actuating cylinder having two chambers connected to a feed circuit supplying a pressurized fluid; the feed circuit having, for each chamber, two feed lines for feeding the fluid to and from the chamber respectively, and four independent valves, each located along one of the feed lines and movable between a closed position and at least one open position respectively closing and opening the relative feed line.

Abstract: A farm implement of a tractor is hitched to two lift arms, each of which is moved by a respective actuating cylinder having two chambers connected to a feed circuit supplying a pressurized fluid; the feed circuit having, for each chamber, two feed lines for feeding the fluid to and from the chamber respectively, and four independent valves, each located along one of the feed lines and movable between a closed position and at least one open position respectively closing and opening the relative feed line.

Abstract: Steering equipment is provided with a transmission shaft (4) mounted so that it can turn within a steering column (2), and with a control device (8) for actuating an operating unit; the control device (8) being provided with a switch (9) and a control member (18), which has substantially the shape of the sector of a circle and can move between an operative position, in which the control member (18) sets itself about a longitudinal axis (3) of the steering column (2), and a position of actuation of the switch (9).

Abstract: A hydraulic valve having a main body in which is formed a pressurized-fluid inlet opening; a first conduit communicating hydraulically with a user device; a second conduit communicating hydraulically with the user device, and at least one spool for regulating pressurized fluid flow to and from the user device; the spool having a longitudinal axis, and the position of the spool being regulated by an actuating device; the hydraulic valve being characterized in that the actuating device has a guide member for preventing the spool from rotating about the axis; the actuating device also having a cable, e.g. a Bowden-type cable, for moving the spool in two opposite directions defined by the longitudinal axis.