Hybrid Vehicle

The invention provides a hybrid vehicle. One axle of a hybrid vehicle is powered by an electric motor while a second axle of the vehicle is powered by a powertrain that includes an internal combustionengine. The electrically driven axle can be controlled in a speed control mode or in a torque control mode based on a driver demanded torque. The speed control mode is used when slip is detected at the electrically driven axle. The torque control mode is used when the electrically driven axle has traction. During a transition between these modes, the rate of change of torque is controlled to a predetermined level to mitigate noise, vibration, and harshness. 本公开提供了"混合动力车辆"。一种混合动力车辆的一个车桥由电动马达提供动力，而所述车辆的第二车桥由包括内燃发动机的动力传动系统提供动力。可基于驾驶员需要的扭矩在速度控制模式或扭矩控制模式中控制所述电驱动车桥。当在所述电驱动车桥处检测到打滑时，使用所述速度控制模式。当所述电驱动车桥具有牵引力时，使用所述扭矩控制模式。在这些模式之间转换期间，控制扭矩的变化速率至预定水平以减轻噪声、振动和粗糙性。