A control system includes one or more processing circuits comprising one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to acquire speed data regarding current speeds of tractive elements of the vehicle from tractive element speed sensors of the vehicle, determine speed references for the tractive elements to perform autonomous driving operations where the speed references indicate speeds at which each of the tractive elements should rotate to accommodate the autonomous driving operations, and control at least one of a driveline or a brake system of the vehicle to selectively alter the current speeds of the tractive elements of the vehicle based on the current speeds and the speed references to accommodate the autonomous driving operations.

A method for controlling the speed of a work vehicle during downhill operation may include controlling an operation of at least one of an engine or a transmission of a work vehicle so as to maintain the work vehicle operating at a requested speed and identifying an operating condition of the work vehicle that provides an indication that the work vehicle is traveling downhill. In addition, the method may include determining whether at least one pre-condition for downshifting the transmission from a current gear ratio to a downshift gear ratio is satisfied when the operating condition indicates that the work vehicle is currently traveling downhill. Moreover, when it is determined that the pre-condition(s) is satisfied, the method may include controlling the operation of the transmission such that the transmission is downshifted from the current gear ratio to the downshift gear ratio.

Aspects of the present invention relate to a control system for controlling torque distribution between a first axle (110) and a second axle (120) in a vehicle (100), the control system comprising one or more controllers. The control system is configured to detect that the vehicle is in overrun and detect the vehicle speed. When the vehicle is in overrun and the vehicle speed is below a first speed threshold then the torque distribution is controlled to reduce overrun torque to the first axle and to increase overrun torque to the second axle. The vehicle may be a hybrid vehicle comprising an internal combustion engine (ICE) (201), a belt integrated starter generator (B-ISG) (205) and an electric rear axle drive (ERAD) (204).

A method for operating a motor vehicle having at least one vehicle communication arrangement fixed to the body. Signals are emitted by a user device, which can be handled independently of the motor vehicle and can be assigned or is assigned to a driver of the motor vehicle, and are received by the vehicle communication arrangement. A distance between the user device and the motor vehicle is monitored on the basis of the received signals. Provision is made for the distance to be monitored during operation of the motor vehicle and for a safety operating state of the motor vehicle to be activated when a distance exceeding a predefined threshold value is detected.

A determination unit in an ECU of a rough terrain vehicle determines a reverse running state in a case that an engine rotational speed of an engine decreases when a traveling drive force is generated in the rough terrain vehicle. Further, if the determination unit determines occurrence of the reverse running state, the ECU refers to a clutch hydraulic pressure map, and sets a target hydraulic pressure so as to decrease gradually over time.

A system and method are provided for hybrid electric internal combustion engine applications in which a motor-generator, a narrow switchable coupling and a torque transfer unit therebetween are arranged and positioned in the constrained environment at the front of an engine in applications such as commercial vehicles, off-road vehicles and stationary engine installations. The motor-generator is preferably positioned laterally offset from the switchable coupling, which is co-axially-arranged with the front end of the engine crankshaft. The switchable coupling is an integrated unit in which a crankshaft vibration damper, an engine accessory drive pulley and a disengageable clutch overlap such that the axial depth of the clutch-pulley-damper unit is nearly the same as a conventional belt drive pulley and engine damper. The front end motor-generator system includes an electrical energy store that receives electrical energy generated by the motor-generator when the coupling is engaged. When the coupling is disengaged, the motor-generator may drive the pulley portion of the clutch-pulley-damper to drive the engine accessories using energy returned from the energy store, independent of the engine crankshaft.

A method for controlling the speed of a work vehicle during downhill operation may include controlling an operation of at least one of an engine or a transmission of a work vehicle so as to maintain the work vehicle operating at a requested speed and identifying an operating condition of the work vehicle that provides an indication that the work vehicle is traveling downhill. In addition, the method may include determining whether at least one pre-condition for downshifting the transmission from a current gear ratio to a downshift gear ratio is satisfied when the operating condition indicates that the work vehicle is currently traveling downhill. Moreover, when it is determined that the pre-condition(s) is satisfied, the method may include controlling the operation of the transmission such that the transmission is downshifted from the current gear ratio to the downshift gear ratio.

In a rough terrain vehicle, at a time of preparing to start movement, in a case that a left paddle switch and a right paddle switch are operated together with an accelerator pedal, an ECU disengages a clutch of an automatic transmission, and causes an output of an engine to increase. On the other hand, at a time of starting movement, in a case that the left paddle switch and the right paddle switch are returned to their initial positions, the ECU engages the clutch and transmits the output of the engine from the engine to vehicle wheels via the automatic transmission, to thereby rapidly start movement of the rough terrain vehicle.

A slip control system for an off-road vehicle includes a control system configured to output a signal indicative of a first action if a magnitude of slippage of the off-road vehicle relative to a soil surface is greater than a first threshold value and less than or equal to a second threshold value. Furthermore, the control system is configured to output a signal indicative of a second action, different than the first action, if the magnitude of slippage is greater than the second threshold value.

A slip control system for an off-road vehicle includes a control system configured to output a signal indicative of a first action if a magnitude of slippage of the off-road vehicle relative to a soil surface is greater than a first threshold value and less than or equal to a second threshold value. Furthermore, the control system is configured to output a signal indicative of a second action, different than the first action, if the magnitude of slippage is greater than the second threshold value.