When the idle angle of the small mixer is disconnected, the ECU judges that the engine is under partial load. At this time, the ECU determines the oil filling amount according to the air flow meter and crankshaft speed signal.

　　但此时，发动机实际工作在空转转速下，进气较少，导致混合气浓度过高，转速升高。当ECU接收到来自氧传感器的“混合液过厚”信号时，会减少注入的油量，增加怠速控制阀的开度，导致混合液过薄。

　　But at this time, when the engine is actually working at idle speed, the intake air is less, resulting in the mixture concentration is too high and the speed increases. When the ECU receives the "too thick mixture" signal from the oxygen sensor, it will reduce the injected oil volume and increase the opening of the idle speed control valve, resulting in too thin mixture.

　　当ECU接收到氧传感器发出的“混合液过稀”信号时，会增加注油量，降低怠速控制阀的开启电荷，导致混合液过厚，速度升高。这就使得发动机怠速反复不稳定，严重时混合器转速指针忽上忽下。

　　When the ECU receives the signal of "the mixture is too thin" from the oxygen sensor, it will increase the filling amount and reduce the opening charge of the idle speed control valve, resulting in the mixture being too thick and the speed increasing. This makes the idle speed of the engine unstable repeatedly. In serious cases, the speed pointer of the mixer goes up and down.

　　空转时打开空调，或打开方向盘，或打开前灯，都会增加发动机的负荷。防止发动机在重负载下失速。ECU增加了燃料注入量，以保持发动机平稳运行。如果转速触点断开，ECU认为发动机没有处于怠速状态，油量的增加会相对较小，所以转速不会增加甚下降。所以空转时打开空调，检查一下方向盘。

　　Turning on the air conditioner, the steering wheel or the headlights when idling will increase the load on the engine. Prevent the engine from stalling under heavy load. The ECU increases the amount of fuel injected to keep the engine running smoothly. If the speed contact is disconnected, the ECU thinks that the engine is not in idle state, and the increase of oil volume will be relatively small, so the speed will not increase or even decrease. So turn on the air conditioner and check the steering wheel when idling.

　　如果发动机转速没有增加甚下降，都可以证明是故障。调整、修理或更换小型混合器的节流位置传感器。

　　If the engine speed does not increase or even decrease, it can be proved to be a fault. Adjust, repair, or replace the throttle position sensor for the minimixer.

　　以上是中科聚峰厂家为大家介绍的“小型搅拌车为什么有时转动不稳定？”的相关内容，想要了解更多搅拌车信息，欢迎访问网站：http://www.cnzkjf.cnThe above is what Zhongke Jufeng factory introduced to you: "why does the small mixer sometimes rotate unsteadily?" For more information about mixer, please visit the website: http://www.cnzkjf.cn