An electric vehicle control device includes an idling-sliding control unit that provides control to reduce or prevent idling and sliding that may occur on a wheel of an electric vehicle. The idling-sliding control unit includes an idling-sliding detection unit for detecting idling or sliding that has occurred on the electric vehicle, and a torque command value generation unit that generates a torque command value used for reducing or preventing idling or sliding, based on output of the idling-sliding detection unit. When a prediction signal representing an anticipated occurrence of idling or sliding is inputted, the torque command value generation unit performs narrowing of the torque command value regardless of whether or not the idling-sliding control unit is performing idling-sliding control.

An electric vehicle control device includes an idling-sliding control unit that provides control to reduce or prevent idling and sliding that may occur on a wheel of an electric vehicle. The idling-sliding control unit includes an idling-sliding detection unit for detecting idling or sliding that has occurred on the electric vehicle, and a torque command value generation unit that generates a torque command value used for reducing or preventing idling or sliding, based on output of the idling-sliding detection unit. When a prediction signal representing an anticipated occurrence of idling or sliding is inputted, the torque command value generation unit performs narrowing of the torque command value regardless of whether or not the idling-sliding control unit is performing idling-sliding control.

Various methods and systems are provided for adjusting an air-fuel ratio for combustion in an engine. In one embodiment, a method for an engine (e.g., a method for controlling an engine system) comprises responding to a sensed change in a load on the engine, or indications of engine knock or misfire, by one or more of: altering a speed of the engine, adjusting a fueling flow rate into at least one cylinder of the engine, and adjusting a position of a valve in a bypass passage configured to direct compressed intake air away from cylinders of the engine to obtain a determined air-fuel ratio; and thereby maintaining an air-fuel ratio in a determined range.