A system and method for controlling a motor of an electric drivetrain having a multi-speed transmission with at least a first clutch and a second clutch. The system and method includes initiating a transmission shift requiring engagement of the first clutch, applying synchronizing torque commands to the motor based on an engagement parameter of the first clutch until the shift is complete, and applying non-shifting torque commands to the motor after the shift is complete.

A system includes a power transmission mechanism having a rotation shaft, a power transmission gear, a dog ring, a dog clutch, a switching mechanism to move the dog ring in an axial direction to switch a power transmission state, and a switching controller to control an operation of the switching mechanism. The switching controller determines whether the dog clutch is in an engaged state when giving a switching command to cause the dog ring to be moved to a side of the power transmission gear in the axial direction. After the dog clutch is determined not to be in the engaged state, the switching controller causes the dog ring to be moved to the side opposite to the power transmission gear, and then retries movement of the dog ring to the side of the power transmission gear.

A drive axle system and a method of control. The drive axle system comprises a first axle assembly, a second axle assembly, and a control module. The control module comprises a first core and a second core. The first core controls operation of the first axle assembly. The second core controls operation of the second axle assembly.

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 device and method to detect and resolve a tooth-on-tooth situation of a gearbox (40) are provided. The device (20) includes at least one processing circuit (30) configured to obtain a gearbox actuator position (16) indicative of a position of an actuator member (52, 53) of a gearbox actuator (50). The at least one processing circuit (30) is configured to process the gearbox actuator position (62) to detect a tooth-on-tooth situation and to trigger a corrective procedure to resolve the tooth-on-tooth situation. The corrective procedure includes triggering, by the at least one processing circuit (30), a rotational speed pulse (67, 68) or several rotational speed pulses (67, 68) for an input shaft (45) of the gearbox (40) to resolve the tooth-on-tooth situation.

The present disclosure relates to a method and a device for actuating a dog clutch (6) of a manual transmission (2) of an electrically driveable vehicle (1), in which at least relative rotational speeds and/or rotational angle positions of a sliding sleeve (7) and of a coupling element (12) relative to each other are determined, in order to avoid a possible tooth-to-tooth position. In the case of a predicted tooth-to-tooth position, control measures are carried out, which change the relative rotational angle position of the sliding sleeve (7) and of the coupling element (12) relative to each other and/or the duration of the movement of the sliding sleeve (7) in such a way that, when an engagement position is reached, delay-free form-fitting meshing of associated sets of dog teeth (10, 13) is carried out.

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.

A method and system for estimating a temperature of a clutch and a maximum temperature of a clutch are described. In one example, the maximum temperature of the clutch is based on phases of a transmission gear shift. The transmission gear shift may include a power-on downshift and a power-on upshift.

A method and system for estimating a temperature of a clutch and a maximum temperature of a clutch are described. In one example, the maximum temperature of the clutch is based on phases of a transmission gear shift. The transmission gear shift may include a power-on downshift and a power-on upshift.