Method and system for evaluating road load sensitivity of suspension system and electronic equipment
A load-sensitivity, suspension system technology that is applied in vehicle suspension/shock-absorbing mechanism testing, etc., can solve problems such as poor precision, low efficiency, and poor timeliness, and achieve the effect of accuracy and high data accuracy
Active Publication Date: 2021-11-26
VOYAH AUTOMOBILE TECH CO LTD
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Problems solved by technology
[0004]
The invention provides an evaluation method, evaluation system and electronic equipment of the road load sensitivity of the suspension system, to solve or partially solve the road load sensitivity of the whole vehicle or the suspension during the road durability test of the whole vehicle at present. The accuracy of the evaluation method is not good, and the timeliness is poor, and the technical problem of low efficiency
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[0053] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings. Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence. Unless otherwise specified, various equipment used in the present invention can be purchased from the market or prepared by existing methods.
[0054] Further research shows that the NVH vibration analysis method based on simulation still has the problem of not considering whether the resonance is beneficial ...
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The invention discloses a method for evaluating road load sensitivity of a suspension system. The method comprises the following steps: acquiring a suspension reference dominant frequency of a test vehicle on a reference road surface; according to the obtained characteristic road load spectrum of the test vehicle on the characteristic road surface, determining the characteristic dominant frequency of the suspension; determining a load sensitivity coefficient according to the suspension reference dominant frequency and the suspension characteristic dominant frequency; determining the road load sensitivity of the test vehicle on the characteristic road surface according to the load sensitivity coefficient and the load amplification coefficient, wherein the load amplification coefficient is determined according to the characteristic road load spectrum when the load sensitivity coefficient is in a preset sensitive interval, the reference road surface is a test road surface with preset road surface excitation, and the characteristic road surface is a test road surface for performing a whole vehicle road endurance test on the test vehicle. According to the method, the accuracy of an evaluation result is improved, and meanwhile, the timeliness of road load sensitivity analysis is remarkably improved.
Description
technical field [0001] The present application relates to the technical field of vehicle durability testing, and in particular to an evaluation method, evaluation system and electronic equipment for road load sensitivity of a suspension system. Background technique [0002] Vehicle durability test is a group of tests to assess the reliability of the whole vehicle, system, subsystem and components. At present, the whole vehicle is usually carried out in a special durability test field. When the vehicle is carrying out the durability test on the endurance test site or collecting the road load spectrum at the test site, the load on some test road surfaces may suddenly magnify, and the load magnification is often caused by the sensitivity of some systems to the road surface If this problem is not dealt with, the pavement load spectrum data will have accumulated damage in the later stages of bench test, CAE strength analysis, CAE fatigue analysis, load decomposition, real vehicle...
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IPC IPC(8): G01M17/04
CPCG01M17/04Y02T90/00
Inventor 罗晓东易俊宇张永仁韩广宇徐治
Owner VOYAH AUTOMOBILE TECH CO LTD