Experimental device for disconnection of automobile engine mount

Abstract

The invention provides an automobile engine hanging disconnection experiment device, and belongs to the technical field of automobiles, wherein the problems that an existing hanging disconnection experiment is poor in accuracy and low in experiment efficiency are solved. The automobile engine hanging disconnection experiment device comprises a central processing unit, a track collection unit capable of collecting a vibration track of an engine, a hanging mechanism for hanging the engine, and a driving unit capable of driving the hanging mechanism to vibrate. The track collection unit and the driving unit are both connected with the central processing unit. The central processing unit can receive a vibration track signal sent by the track collection unit and send a corresponding control signal to the driving unit so that the driving unit can be controlled to drive the hanging mechanism to vibrate along the vibration track of the engine. The automobile engine hanging disconnection experiment device has the advantages of being high in accuracy and high in experiment efficiency.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an experimental device, in particular to an experimental device for disconnecting a suspension of an automobile engine. Background technique [0002] With the continuous development of the automobile industry, people have higher and higher requirements for the performance and comfort of the automobile. Among them, the engine as the power source of the car will vibrate when it is in working condition, and the vibration will be transmitted to the car body through the four mounts connecting the engine and the car body, and the vibration of the car body will cause some other parts in the car to vibrate. Vibration, such as the steering wheel of a car, will have a greater impact on the comfort of the car. Especially when the engine is at idle speed, its vibration is more easily perceived by the occupants in the vehicle. [0003] In response to this problem, people use the experimen...

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Problems solved by technology

[0004] However, when doing the above suspension disconnection experiment at present, it is necessary to lift and fix one end of the disconnected suspension on the engine through the hanger, and the installation point of the suspension is fixed, so that it is impossible to accurately judge the impact of the suspension. The impact of vibration transmission: Because when the engine vibrates under the idling condition of the car, each mount will have parameters such as displacement, torsion angle, and torque. When a mount is fixed, other mounts cannot be in the original position. Free state, that is, the displacement, torsion angle, torque and other parameters of the other three mounts before and after disconnection under idling conditions have changed, which eventually leads to the inability to accurately judge the influence of the disconnected mount on the vibration of the steering wheel, making Experimental inefficiency

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