A control apparatus and a control method for a transmission of an agricultural work vehicle are provided, the control apparatus including: a forward/backward clutch of a forward/backward shifting unit that performs forward/backward shifting with respect to drive generated by an engine; and a drive clutch of a drive shifting unit that performs drive shifting with respect to the drive generated by the engine.

A control apparatus and a control method for a transmission of an agricultural work vehicle are provided, the control apparatus including: a forward/backward clutch of a forward/backward shifting unit that performs forward/backward shifting with respect to drive generated by an engine; and a drive clutch of a drive shifting unit that performs drive shifting with respect to the drive generated by the engine.

An electric powertrain includes a transmission connected with a traction motor to receive motive power embodied as torque and speed. To adjust the torque and speed, the transmission has a plurality of gear sets that are selectively engaged by actuation of associated hydraulic clutches. For actuation, the hydraulic clutches receive hydraulic fluid from a hydraulic system. To calibrate actuation of the clutches, the traction motor is run at a reduced speed range under calibration conditions while the hydraulic system is operated at a operational speed range. Further, a torque/current limit is applied to the traction motor to limit torque applied to the transmission during calibration.

An electric powertrain includes a transmission connected with a traction motor to receive motive power embodied as torque and speed. To adjust the torque and speed, the transmission has a plurality of gear sets that are selectively engaged by actuation of associated hydraulic clutches. For actuation, the hydraulic clutches receive hydraulic fluid from a hydraulic system. To calibrate actuation of the clutches, the traction motor is run at a reduced speed range under calibration conditions while the hydraulic system is operated at a operational speed range. Further, a torque/current limit is applied to the traction motor to limit torque applied to the transmission during calibration.

An electric powertrain includes a transmission connected with a traction motor to receive motive power embodied as torque and speed. To adjust the torque and speed, the transmission has a plurality of gear sets that are selectively engaged by actuation of associated hydraulic clutches. For actuation, the hydraulic clutches receive hydraulic fluid from a hydraulic system. To calibrate actuation of the clutches, the traction motor is run at a reduced speed range under calibration conditions while the hydraulic system is operated at a operational speed range. Further, a torque/current limit is applied to the traction motor to limit torque applied to the transmission during calibration.

An electric powertrain includes a transmission connected with a traction motor to receive motive power embodied as torque and speed. To adjust the torque and speed, the transmission has a plurality of gear sets that are selectively engaged by actuation of associated hydraulic clutches. For actuation, the hydraulic clutches receive hydraulic fluid from a hydraulic system. To calibrate actuation of the clutches, the traction motor is run at a reduced speed range under calibration conditions while the hydraulic system is operated at a operational speed range. Further, a torque/current limit is applied to the traction motor to limit torque applied to the transmission during calibration.

A computer system having processing circuitry to issue information to a vehicle comprising a transmission is provided. The processing circuitry is configured to receive a request for a transmission ratio shift operation indicative of a selected transmission ratio. The processing circuitry is configured to issue information indicative of that the vehicle should assume a transmission ratio engagement enabling condition in which engagement of the selected transmission ratio is enabled but remaining disengaged. The processing circuitry is configured to select a target transmission ratio based on the selected transmission ratio and second requests for transmission ratio shift operations received during a time range after the issuance of the information. The processing circuitry is configured to, after the time range, issue engagement information to the vehicle to engage the target transmission ratio.

A computer system having processing circuitry to issue information to a vehicle comprising a transmission is provided. The processing circuitry is configured to receive a request for a transmission ratio shift operation indicative of a selected transmission ratio. The processing circuitry is configured to issue information indicative of that the vehicle should assume a transmission ratio engagement enabling condition in which engagement of the selected transmission ratio is enabled but remaining disengaged. The processing circuitry is configured to select a target transmission ratio based on the selected transmission ratio and second requests for transmission ratio shift operations received during a time range after the issuance of the information. The processing circuitry is configured to, after the time range, issue engagement information to the vehicle to engage the target transmission ratio.

The present disclosure relates to a computer-implemented method for selectively enabling transmission state disengagement in a transport vehicle equipped with a transmission operable among multiple states. The method involves receiving signals from various sources: a propulsion control unit indicating powertrain speed, perception sensors providing the vehicle's position relative to a work area, or a signal indicating the hydraulic control state. Based on these inputs, the method dynamically estimates the vehicle's work state, distinguishing between traveling and working modes. A transmission state control signal is conditionally generated according to the estimated work state, enabling transmission state disengagement exclusively during the working mode. This approach ensures efficient operation by adapting the transmission state to the vehicle's current operational context, enhancing performance and safety in work environments.

The present disclosure relates to a computer-implemented method for selectively enabling transmission state disengagement in a transport vehicle equipped with a transmission operable among multiple states. The method involves receiving signals from various sources: a propulsion control unit indicating powertrain speed, perception sensors providing the vehicle's position relative to a work area, or a signal indicating the hydraulic control state. Based on these inputs, the method dynamically estimates the vehicle's work state, distinguishing between traveling and working modes. A transmission state control signal is conditionally generated according to the estimated work state, enabling transmission state disengagement exclusively during the working mode. This approach ensures efficient operation by adapting the transmission state to the vehicle's current operational context, enhancing performance and safety in work environments.