“飞车”是发动机在运转时突然大大超过空载最高转速，并且不再受驾驶员控制的一种故障现象。由于“飞车”产生巨大的机械力，容易引起发动机连杆或连杆螺栓折断以及拉缸等恶性事故。因此必须立即采取紧急措施，尽快制止“飞车”。要使发动机停下来，一般有加大负荷、切断供油 “Speed” is a failure phenomenon when the engine suddenly and greatly exceeds the no-load maximum speed during operation, and is no longer under the control of the driver. As the “Speed” huge mechanical force, likely to cause the engine connecting rod or connecting rod bolt breakage and cylinder and other serious accidents. Therefore, urgent measures must be taken immediately to stop the “speeding car” as soon as possible. To stop the engine, generally have to increase the load, cut off the fuel supply