A method and equipment for testing the dynamic characteristics of an air spring
A technology of air spring and test method, which is applied in the direction of elasticity test, mechanical component test, machine/structural component test, etc. It can solve the lack of description data, the great influence of suspension and vehicle dynamics, and the dynamics Problems such as performance optimization data processing requirements cannot be met
Active Publication Date: 2022-03-22
HUNAN CRRC INTELLIGENT TRANSPORT TECH CO LTD
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Problems solved by technology
[0003] In the process of vehicle design, air springs, as the elastic components of vehicles, generally only have static stiffness data of air springs, and lack data describing their real dynamic characteristics, which has a great impact on vehicle design, suspension and vehicle dynamics performance
[0004] Most of the existing air spring test methods are static stiffness and fatigue performance test methods of the air spring, or only for the performance test of the suspension bench to test the dynamic response of the suspension itself. The design of the test device is also limited by this, resulting in Unsatisfactory requirements for vehicle design, suspension and vehicle dynamics performance optimization, and body attitude control data processing
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[0031] The detailed features and advantages of the present invention are described in detail below in the specific embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the specification, claims and drawings disclosed in this specification , those skilled in the art can easily understand the related objects and advantages of the present invention.
[0032] see figure 1 , as the first aspect of the present invention, the present invention provides a kind of test method of air spring, and air spring has height valve, and test method comprises:
[0033] Design step: According to the vehicle design, determine the test parameters, including the load condition, the design height of the air spring and the air pressure design value of the vehicle air pump. The load condition includes three load conditions of the vehicle: no-load, half-load and f...
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The invention provides a dynamic characteristic test method and equipment for an air spring with a height valve control for a vehicle, which can obtain dynamic characteristic data more in line with the air spring during vehicle operation, and provide a basis for vehicle design, suspension and vehicle dynamic performance. Optimization and body attitude control provide more accurate data.
Description
technical field [0001] The invention relates to the testing field of air springs, in particular to a method and equipment for testing the dynamic characteristics of an air spring with a height valve for vehicle control. Background technique [0002] With the improvement of vehicle comfort requirements, air springs have the characteristics of nonlinear stiffness, low natural frequency and good vibration isolation effect, and are more and more used in vehicles. At present, most of the air springs used in vehicles use height valves to adjust and control the height of the air springs for vibration isolation and body posture control. As a vehicle elastic component, the air spring directly affects the load-carrying characteristics, safety, stability, comfort and other performance of the vehicle. Therefore, in vehicle design and vehicle performance optimization, the real mechanical characteristic data of the air spring is very important. [0003] In the process of vehicle design,...
Claims
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IPC IPC(8): G01M13/00G01M5/00
CPCG01M13/00G01M5/0075
Inventor 钟汉文付建朝张陈林胡云卿李晓光周胜周承明王叶青李俊义
Owner HUNAN CRRC INTELLIGENT TRANSPORT TECH CO LTD