The invention relates to a drive-shaft arrangement for use on a drive vehicle, in particular a tractor, with an automatic clutch system for intermediate attachment units for providing a front power take-off (PTO) on the drive vehicle, in particular, a tractor with a base frame having at least a front-side first suspension and a rear-side second suspension, a clutch unit arranged on the base frame, a drive-shaft device and a front PTO, wherein the clutch unit is drivingly connected to the front PTO via the drive-shaft device, wherein the first and the second suspensions are designed for the mechanical coupling of the drive-shaft arrangement within an intermediate-axle space of the drive vehicle and the clutch unit is designed for the driving coupling of the front PTO with the automatic clutch system for intermediate-axle attachment units.

A method of selectively controlling a power take-off (PTO) assembly includes positioning a clutch assembly radially between a shaft and a PTO gear, operably controlling the clutch assembly with a controller, and selectively engaging the clutch assembly with the controller. The controller monitors signals received from a plurality of sensors and compares the monitored signals with respective signal thresholds. The clutch assembly is engaged when the compared monitored signals are within the signal thresholds.

A drive-train of a vehicle with at least a drive motor (1) and a transmission (2) in which at least one torque sensor (6, 6A) is provided for control purposes. The torque sensor (6, 6A) is integrated in a transmission component in order to determine, at the time, the applied torque.

A power take-off (PTO) arrangement is provided for transferring power between a work vehicle and an implement. The PTO arrangement includes a PTO shaft having a PTO flange; and a PTO transmission unit having an input shaft coupled to the work vehicle, an output shaft coupled to the PTO shaft, and a gear set coupling the input shaft to the output shaft such that the power is transferred at a speed ratio selected from at least two speed ratios. A PTO speed control system has a sensor arrangement proximate to the PTO shaft and configured to sense data associated with the PTO flange and generate a PTO flange output signal based on the PTO flange data and a control unit and configured to selectively enable and disable operation of the PTO arrangement based on the PTO flange output signal and the selected speed ratio.

The purpose is to provide a working vehicle such that, when a reverse switch coupler is detached, or when a wire connecting a reverse switch to a control device is disconnected, driving of a PTO shaft can be reliably prevented and reliability of the reverse switch can be improved. In a tractor, a reverse switch includes a normally closed type first contact, and a normally open type second contact that is switched in association with the first contact. When an input voltage from the first contact is higher than a set voltage, and when the input voltage from the first contact is lower than the set voltage and an input voltage from the second contact is equal to or lower than the set voltage, a control device controls the actuator such that the PTO clutch is disconnected.

A power take-off system and method is provided for a vehicle that includes an internal combustion engine, an electrical generator, an electrical machine, a power take-off summing planetary and a power take-off brake. The power take-off system includes a controller and a human-machine interface. The controller is configured to receive an input from the human-machine interface to select one of a variable speed power take-off mode, an electrical power generation mode, and a full power fixed ratio power take-off mode of operation. In the variable speed power take-off mode, electrical power from the electrical generator and rotational power by the power take-off system are output, and the electrical machine receives electricity and provides rotational power. In the electrical power generation mode, the electrical generator and the electrical machine both provide electrical power. In the full power fixed ratio mode, no electrical power is provided.

A method includes measuring a parameter indicative of a measured torque in a PTO clutch, determining an incremental torque based at least in part on proportional-integral-derivative (PID) control logic, determining a command torque, wherein the command torque is a sum of the measured torque and the incremental torque, generating a control signal, wherein a current of the control signal corresponds to the command torque and a pressure in a cylinder of the PTO clutch, providing the control signal to the PTO clutch, reducing the incremental torque if an engagement power exceeds an engine power output, and ceasing engagement if an energy absorbed by the clutch exceeds an energy rating of the PTO clutch.

A power take-off (PTO) drive assembly for a transmission includes a shaft defining a shaft axis, a PTO gear defined radially about the shaft axis, and a clutch assembly positioned between the shaft and the PTO gear and having an engaged position and a disengaged position. When the clutch assembly is in the engaged position, torque is transferred from the shaft to the PTO gear. When the clutch assembly is in the disengaged position, torque is not transferred from the shaft to the PTO gear.

A method includes measuring a parameter indicative of a measured torque in a PTO clutch, determining an incremental torque based at least in part on proportional-integral-derivative (PID) control logic, determining a command torque, wherein the command torque is a sum of the measured torque and the incremental torque, generating a control signal, wherein a current of the control signal corresponds to the command torque and a pressure in a cylinder of the PTO clutch, providing the control signal to the PTO clutch, reducing the incremental torque if an engagement power exceeds an engine power output, and ceasing engagement if an energy absorbed by the clutch exceeds an energy rating of the PTO clutch.

An example system includes a motor/generator selectively coupled to a drive line of a vehicle, and configured to selectively modulate power transfer between an electrical load and the drive line; a battery pack; a DC/DC converter electrically interposed between the motor/generator and the electrical load, and between the battery pack and the electrical load; a covering tray positioned over a plurality of batteries of the battery pack, the covering tray comprising a connectivity layer that has a charging circuit allowing each of the plurality of batteries to be discharged individually; a plurality of battery microcontrollers, each of the plurality of battery microcontrollers associated with a corresponding one of a plurality of batteries of the battery pack; and a primary DC/DC controller configured to command operations of the DC/DC converter; wherein the plurality of battery microcontrollers are operationally coupled to the primary DC/DC controller.