A shift control system for an industrial vehicle includes a vehicle speed monitor, a vehicle speed limit value setting section, a gear determination section, and a control section. The vehicle speed monitor is configured to monitor and detect an actual vehicle speed of the industrial vehicle. The vehicle speed limit value setting section is configured to set a vehicle speed limit value. The gear determination section is configured to select a transmission gear position of the transmission based on the actual vehicle speed and the vehicle speed limit value. The control section is configured to control the transmission in response to the selected transmission gear position. The gear determination section maintains the transmission in the currently-selected transmission gear position when the vehicle speed limit value is equal to or less than a predetermined threshold value and the threshold value is greater than an upshifting vehicle speed for upshifting the transmission.

A hydraulic damping rail includes a primary rail wall defining a primary rail volume, a rail inlet structured to provide communication of hydraulic fluid between a hydraulic pump and the primary rail volume, and a plurality of rail outlets configured to provide communication between the primary rail volume and a plurality of clutch valves. A spacing between adjacent pairs of rail outlets of the plurality of rail outlets is variable.

A transmission system for a vehicle, comprising a dynamic controllable clutch (DCC) and a friction clutch. The transmission system may further comprise a controller comprising instructions stored in non-transitory memory that are executable by the controller to adjust a state of the DCC and a state of the friction clutch to selectively engage a first gear ratio and a second gear ratio for providing torque transfer from an input to an output of the transmission system.

Systems and methods for an electric drive unit are provided. A transmission system, in one example, includes a higher-lower range clutch assembly positioned downstream of a multi-speed clutch assembly and designed to shift the transmission system between a higher range operating mode and a lower range operating mode. The higher-lower range clutch assembly includes a lower range clutch and a higher range clutch each positioned on one of a first layshaft and an output shaft.

Systems and methods for an electric drive unit are provided. A transmission system, in one example, includes a higher-lower range clutch assembly positioned downstream of a multi-speed clutch assembly and designed to shift the transmission system between a higher range operating mode and a lower range operating mode. The higher-lower range clutch assembly includes a lower range clutch and a higher range clutch each positioned on one of a first layshaft and an output shaft.

A series hybrid drive unit that is downsized while improving power transmission efficiency. In the series hybrid drive unit, a generator is driven by an engine, and a motor is operated by electricity generated by the generator. Torque generated by the generator is delivered to drive wheels through a final reduction unit. An input member that is rotated by a torque of the engine, and that is arranged parallel to a rotational center axis Og of the generator. The generator and the motor are arranged parallel to each other while keeping a predetermined clearance, and the final reduction unit is arranged parallel to the motor. The input member and the generator are connected through a first wrapping transmission mechanism, and torque of the motor is transmitted to a final reduction unit through a second wrapping transmission mechanism.

A series hybrid drive unit that is downsized while improving power transmission efficiency. In the series hybrid drive unit, a generator is driven by an engine, and a motor is operated by electricity generated by the generator. Torque generated by the generator is delivered to drive wheels through a final reduction unit. An input member that is rotated by a torque of the engine, and that is arranged parallel to a rotational center axis Og of the generator. The generator and the motor are arranged parallel to each other while keeping a predetermined clearance, and the final reduction unit is arranged parallel to the motor. The input member and the generator are connected through a first wrapping transmission mechanism, and torque of the motor is transmitted to a final reduction unit through a second wrapping transmission mechanism.

A clutch control system for a work vehicle includes a controller having a memory and a processor. The controller is configured to receive a first signal indicative of a clutch pedal position, to determine an output torque based on the clutch pedal position, and to determine an inching torque for a control clutch based on the output torque and a first gear ratio downstream from the control clutch. The controller is also configured to determine an input torque based on the clutch pedal position, and to determine a launch torque for the control clutch based on the input torque and a second gear ratio upstream of the control clutch. The controller is also configured to determine a clutch control torque for the control clutch based on the inching torque and the launch torque, and to output a second signal indicative of the clutch control torque to the control clutch.

A clutch control system for a work vehicle includes a controller having a memory and a processor. The controller is configured to receive a first signal indicative of a clutch pedal position, to determine an output torque based on the clutch pedal position, and to determine an inching torque for a control clutch based on the output torque and a first gear ratio downstream from the control clutch. The controller is also configured to determine an input torque based on the clutch pedal position, and to determine a launch torque for the control clutch based on the input torque and a second gear ratio upstream of the control clutch. The controller is also configured to determine a clutch control torque for the control clutch based on the inching torque and the launch torque, and to output a second signal indicative of the clutch control torque to the control clutch.

A transmission system for a work vehicle includes a transmission. The transmission includes one or more input shafts, one or more output shafts, and shafts disposed in-between. The transmission includes gear sets disposed on the shafts, wherein the gear sets include intermediate gear sets. The transmission includes clutches disposed along the shafts, wherein each of the clutches is configured to selectively couple a respective gear set of the gear sets corresponding to a respective power flow path of the transmission. The transmission also includes a forward coupler and a reverse coupler each disposed on one of the shafts. The transmission system also includes a controller configured to receive a signal indicative of a shuttle shift, and in response to receiving the signal, instruct the clutches to stop rotation of the intermediate gear sets and subsequently shuttle shift between forward and reverse directions.