Most special purpose vehicle gearboxes are manual gears, such as self-contained mixer, truck crane, wrecker, etc. When shifting gears, the vehicle may feel frustrated. Why?

换挡受挫的原因：自装式搅拌机在行驶过程中换挡时，如果发动机转速与当前的车辆速比匹配，即发动机转速与离合器片转速之间存在速度差(多数情况下，发动机转速低于离合器片转速)，那么就会发生受挫。所以造成车辆换挡受挫的原因是：当时换挡时发动机转速与车速不匹配，发动机转速与离合器片转速存在速度差。比如，在车辆行驶过程中，要想急剧加速，要深踩油门踏板。这时变速箱会自动降档，提高发动机转速，到一定高度再换高档。换上高速档后，因为车速会明显下降，会产生相当明显的挫败感。要想保持更好的加速性能，就必须深踩油门踏板，变速箱就会以更高的速度升到更高的档位。这时，转移的挫败感更加明显。
              

Reasons for frustration in shifting: if the engine speed matches the current vehicle speed ratio when the self-contained mixer is shifting, that is, there is a speed difference between the engine speed and the clutch plate speed (in most cases, the engine speed is lower than the clutch plate speed), then frustration will occur. Therefore, the reason for the frustration of vehicle shifting is that the engine speed does not match the vehicle speed when shifting, and there is a speed difference between the engine speed and the clutch plate speed. For example, in the process of vehicle driving, if you want to accelerate sharply, you should first step on the accelerator pedal deeply. At this time, the gearbox will automatically downshift, increase the engine speed, and then shift to high gear at a certain height. After shifting to high gear, the vehicle speed will obviously decrease, which will cause quite obvious frustration. In order to maintain better acceleration performance, it is necessary to press the accelerator pedal deeply, and the transmission will rise to a higher gear at a higher speed. At this time, the frustration of transfer is more obvious.

方案：一个更好的方法来加载混合器的挫败感，就是在每次换档时，离合器输入端和输出端的齿轮速度完全相似。虽然有点难，但是有经验的老司机开车比较多，知道每个档位的车速和发动机的转速大致的速度差。找机会平稳换挡。手动换挡的速度不可能每次都掌握的那么准确。有的老司机先把离合器抬起70%，让离合器减半。

Solution: a better way to eliminate the frustration of the loading mixer is that the gear speeds at the input and output ends of the clutch are exactly the same at each shift. Although it's a little difficult, experienced drivers drive more and know the speed difference between each gear and the engine speed. Find a chance to shift smoothly. It's impossible to master the speed of manual shift every time. Some old drivers first lift the clutch 70% to halve the clutch.