An active control hydraulic mount for automobile powertrain

Abstract

The invention discloses an active control type hydraulic mount of an automobile power assembly. An upper liquid chamber is formed by a mount shell and a driven disk, and a rubber check ring is respectively in vulcanization connection with the mount shell and the driven disk, so that the upper liquid chamber is sealed; a lower liquid chamber is formed by the driven disk, a base membrane and an actuating ejection rod, and a sealing ring is installed in the base membrane and makes contact with the actuating ejection rod, so as to prevent liquid leakage; an actuator is in threaded connection with the actuating ejection rod, and the actuating ejection rod is connected with the driven disk; an inertial channel is formed in the driven disk, so that the upper liquid chamber communicates with the lower liquid chamber. The active control type hydraulic mount is improved on the basis of an original hydraulic mount, the structure is simple, and partial components and parts are versatile. Active control is realized by utilizing the actuator and can adapt to the action of wide-frequency excitation force generated by a power assembly system, the transferring of vibration of the power assembly to an automobile frame is obviously reduced, and the vibration and noise which are generated by the power assembly system are effectively isolated. The active control type hydraulic mount has the characteristics of low cost, simplicity in manufacturing, good reliability and the like.

Description

technical field [0001] The invention relates to an automobile vibration isolation component, in particular to an automobile power assembly active control hydraulic mount and a vibration isolation method. Background technique [0002] With the continuous improvement of the quality of life, people's requirements for automobile performance are also getting higher and higher. Especially the ride comfort, it has become an important index to measure the performance of the car. Since the automotive powertrain is an important factor that causes vehicle vibration and noise, the isolation of the vibration caused by it becomes the key to improving the NVH (Noise, Vibration, Harshness) characteristics of the vehicle. The mount is a bridge connecting the powertrain and the car body, and a path for vibration transmission between the powertrain and the car body. A powertrain mount system with good vibration isolation performance can reduce the transmission of powertrain vibration to the ...

AI Technical Summary

Problems solved by technology

However, the convex keys are symmetrically arranged on the inner and outer walls of the core component of the actuator, and the grooves are processed on the inner wall of the cavity shell, which is difficult to process, difficult to guarantee accuracy, difficult to achieve generalization of various parts, and the structure is too complicated

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