Method for debugging automobile powertrain suspension system

Abstract

The invention relates to a method for debugging an automobile powertrain suspension system. The method comprises the following steps that A, a whole automobile is tested under the condition that all the suspensions of the suspension system are all assembled on an automobile body, and therefore the vibration noise value of the whole automobile is acquired, and if the vibration noise value of the whole automobile meets the index requirement of vibration noise, the step D is carried out; B, the quantity of the contribution of each suspension in the suspension system on the vibration noise of the whole automobile is measured; C, the suspensions are optimized in sequence according to the quantity of the contribution of the suspensions on the vibration noise of the whole automobile until the optimized vibration noise value of the whole automobile meets the index requirement of the vibration noise; D, debugging is finished. All the steps are carried out in sequence. Through the method for debugging the automobile powertrain suspension system, a large amount of unnecessary test work and subsequent data processing work can be eliminated, and work efficiency is improved.

Description

technical field [0001] The invention relates to the field related to the suspension system of the automobile power assembly; in particular, the invention relates to a debugging method for the suspension system of the automobile power assembly. Background technique [0002] With the improvement of people's requirements for vehicle comfort, vibration and noise have become one of the most important indicators of vehicle design. The improvement of road conditions and the lightweight design of automobiles make the engine the largest source of vibration in the vehicle, and the performance of the suspension system as a vibration isolation system between the powertrain and the body directly affects the NVH performance of the vehicle. Moreover, the current market competition is becoming increasingly fierce, and the development cycle of new models is getting shorter and shorter. How to quickly and effectively complete the commissioning of the suspension system within a limited time a...

AI Technical Summary

Problems solved by technology

The computer model of vehicle transfer path analysis is based on a large amount of experimental test data. For a newly developed vehicle model, the model is of little significance, because the workload of experimental testing required to establish the model is far greater than that of direct measurement. The corresponding workload of vibration and noise; moreover, establishing a correct analysis model requires not only complex and expensive test equipment, but also experienced test personnel, otherwise it is very easy to analyze and get wrong results, misleading the direction of vehicle debugging and affect the development progress

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