The present invention relates to a tracked vehicle comprising at least two drivable crawler chains, a sensor device for detecting the actual speed of each of the at least two crawler chains, and a control device for controlling the driving speeds of the at least two crawler chains, wherein the control device includes a curve control module for adjusting different driving speeds for the at least two crawler chains for cornering in dependence on a steering signal of a steering signal transmitter. According to a first aspect it is proposed that with an individual drive of the at least two crawler chains the still operable other drive motor no longer follows the target rotational speed specified for the normal operation upon failure of a drive motor, but follows the sensorially detected chain or drive train speed of the failed drive by taking account of the steering signal and of the speed difference between the left and right chain sides, which is needed for the commanded curve.

An undercarriage assembly for a tracked vehicle with a prime mover that provides a torque to the tracked vehicle, a final drive sprocket configured to provide a final drive torque on a track, a transmission mechanically coupled to the prime mover and the final drive sprocket to selectively transfer at least some of the torque generated by the prime mover to the final drive sprocket, at least one idler wheel that contacts the track, and an electric motor that provides an idler torque to the at least one idler wheel. Wherein, torque is distributed to the track through both the final drive sprocket and the idler wheel.

A device that includes a memory and a processor is disclosed. The processor may be configured to receive a control signal for operating a plurality of traction motors of a work machine. The control signal may include information relating to an actual speed of the work machine, a target speed of the work machine, and a generator speed of a generator operatively coupled to the traction motors. The processor may be configured to determine respective torque commands associated with the traction motors based on the actual speed and the target speed, and determine a generator power limit based on the generator speed. The processor may be configured to determine a threshold based on the respective torque commands and the generator power limit, adjust the respective torque commands based on the threshold, and cause the traction motors to be operated based on the adjusted respective torque commands.

A method for managing a drive mode of a tracked vehicle, comprising the step of reading an output of a sensor and in response to the output of the sensor performing a control action to manage the drive mode of the vehicle.

Methods and systems are provided for a multi-fuel engine. In one example, a method includes operating engines of rail vehicles at a desired substitution ratio to recharge an energy storage device of a rail vehicle operating in an all-electric mode to meet a requested total power.

A track-type machine is disclosed. The track-type machine may comprise an electric drive powertrain including an internal combustion engine, a winch assembly having a drum rotatably supporting a cable so that the cable is reeled in or reeled out at a winch line speed when the drum is rotating, and an implement controller configured to activate the winch assembly for reeling in and reeling out the cable. The track-type machine may further comprise a hydraulic circuit driven by the internal combustion engine and configured to actuate a rotation of the drum when the winch assembly is activated by the implement controller. In addition, the track-type machine may further comprise a control system configured to increase an engine speed of the internal combustion engine when the winch assembly is activated by the implement controller.

The present invention discloses an electromechanical compound transmission device for a tracked vehicle. The electromechanical compound transmission device includes a front transmission mechanism, a power coupling mechanism, an independent drive mechanism, and convergent planetary gearsets arranged on both sides of the power coupling mechanism. The present invention can not only implement driving, steering, and other functions of a vehicle, but also provide sufficient electric energy for a vehicle-mounted device. In other words, a series mode can be adopted to satisfy a torque output requirement, and is mainly used for low and medium-low speed driving, as well as reverse driving and climbing steep slopes; and a series-parallel mode can also be adopted to satisfy requirements of high and medium-high speed driving, and can achieve relatively high transmission efficiency and fuel economy.

An example, described herein, involves monitoring an operating input of a vehicle; determining a turning maneuver is to be performed by the vehicle with a decreased turn radius based on the operating input; determining that a transmission of the vehicle is to be downshifted to a low gear to enable the vehicle to perform the turning maneuver; and downshifting the transmission to the low gear.

A tracked all-terrain vehicle is shown which includes an internal combustion engine, an electric generator, and a plurality of electric motors which drive movement of the tracks of the tracked all-terrain vehicle.

The present invention discloses an electromechanical compound transmission device for a tracked vehicle. The electromechanical compound transmission device includes a front transmission mechanism, a power coupling mechanism, an independent drive mechanism, and convergent planetary gearsets arranged on both sides of the power coupling mechanism. The present invention can not only implement driving, steering, and other functions of a vehicle, but also provide sufficient electric energy for a vehicle-mounted device. In other words, a series mode can be adopted to satisfy a torque output requirement, and is mainly used for low and medium-low speed driving, as well as reverse driving and climbing steep slopes; and a series-parallel mode can also be adopted to satisfy requirements of high and medium-high speed driving, and can achieve relatively high transmission efficiency and fuel economy.