A method and system for estimating surface roughness of a ground for an off-road vehicle to control an implement comprises detecting motion data of an off-road vehicle traversing a field or work site during a sampling interval. A first sensor is adapted to detect pitch data of the off-road vehicle for the sampling interval to obtain a pitch acceleration. A second sensor is adapted to detect roll data of the off-road vehicle for the sampling interval to obtain a roll acceleration. An electronic data processor or surface roughness index module determines or estimates a surface roughness index based on the detected motion data, pitch data and roll data for the sampling interval. The surface roughness index can be displayed on the graphical display to a user or operator of the vehicle.

Systems and methods for driver presence and position detection are disclosed herein. A method can include determining a presence and a position of a driver in a sensing zone of a vehicle using a sensor platform integrated into the vehicle, determining when the position of the driver indicates that the driver is not in a fully-seated position relative to a driver's seat of the vehicle, and selectively adjusting a vehicle parameter of the vehicle based on the driver not being in a fully-seated position.

Methods and systems for operating a driveline that includes one or more electric machine providing torque to one or more axles are described. In one example, a requested vehicle speed is adjusted responsive to at least one of vehicle yaw, vehicle roll, and vehicle pitch so that vehicle speed may be maintained at a requested value.

A method for operating an off-highway vehicle, comprising: receiving a torque request; rotating a first wheel at a first speed via a first side motor based on the torque request, wherein the first side motor is positioned coaxially with respect to the first wheel; and rotating a second wheel at a second speed via a second side motor based on the torque request, wherein the second side motor is positioned coaxially with respect to the second wheel.

Vehicles including a plurality of front and rear ground engaging members, a front driveline operatively coupled to a first power source, a rear driveline operatively coupled to a second power source, at least one controller operatively coupled to the first drive system and the second drive system are disclosed. The vehicles may further include a torque request input adapted to be actuatable by an operator of the vehicle. The torque request input may provide an indication of a requested torque to the at least one controller. The at least one controller may, based on the requested torque, command a first output of the first drive system to the at least one front ground engaging member and a second output of the second drive system to the at least one rear ground engaging member. Vehicle drive control systems are also disclosed. Methods of controlling torque and battery management are also disclosed.

Methods and systems for operating a driveline that includes one or more electric machine providing torque to one or more axles are described. In one example, a requested vehicle speed is adjusted responsive to at least one of vehicle yaw, vehicle roll, and vehicle pitch so that vehicle speed may be maintained at a requested value.

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 vehicle power system includes a motor, a battery, and one or more controllers. The motor is configured to propel the vehicle. The battery is configured to supply power to the motor. The one or more controllers are programmed to, responsive to detecting a wheel slip or a longitudinal tractive force being outside a preferred range, adjust an accelerator pedal mapping such that a same amount of accelerator pedal travel before the adjustment corresponds to an amount of mechanical power output by the motor that is different than an amount of mechanical power output by the motor after the adjustment.

A vehicle system includes a processor with access to a memory storing instructions executable by the processor. The instructions include determining whether an autonomous host vehicle can traverse an environmental obstacle, and if the autonomous host vehicle can traverse the environmental obstacle, controlling an active suspension system in accordance with the environmental obstacle and controlling the autonomous host vehicle to traverse the environmental obstacle.

A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: obtain (908) information indicative of relative traction levels between different wheels (FL, FR, RL, RR) of the vehicle; and in dependence on the information, control (912) the active suspension system to increase normal force through a wheel (FR) of the vehicle having relatively high traction compared to one or more other wheels (FL, RL, RR) of the vehicle, and decrease normal force through a wheel (FL) of the vehicle having relatively low traction compared to one or more other wheels (FR, RL, RR) of the vehicle.