Vibration reduction device, vibration reduction method and equipment of engine, medium and automobile

The invention provides a damping device of an engine, which comprises a driving part connected with a crankshaft of the engine; the driven part is rotationally arranged in the driving part; the at least one clutch is rotationally arranged between the driving part and the driven part; the actuator is connected with the clutch; the speed measuring element is electrically connected with the actuator, and the speed measuring element is used for measuring the rotating speed of the engine; when the rotating speed of the engine exceeds a rotating speed threshold value, the speed measuring element sends a control instruction to the actuator, and the actuator drives the clutch to be separated from the driving part and the driven part. By means of the vibration reduction device of the engine, secondary vibration generated in the starting process of the engine can be relieved. 本发明提供一种发动机的减振装置，包括主动部分，与发动机的曲轴相连；从动部分，转动设于所述主动部分内；至少一个离合器，转动设于所述主动部分与所述从动部分之间；执行器，与所述离合器相连；以及测速元件，与所述执行器电性连接，所述测速元件测量发动机的转速；其中，当所述发动机的转速超过转速阈值时，所