Vehicle parameter conditioning method based on vehicle handling stability test evaluation system

Abstract

The invention relates to a vehicle parameter conditioning method based on a vehicle handling stability test evaluation system and belongs to the automotive field. The method comprises the steps of vehicle parameter conditioning, establishment of a vehicle dynamic simulation model, establishment of the vehicle handling stability test rapid evaluation system, vehicle performance comprehensive score calculation and target value judgment. According to the method, a theoretical basis is provided for vehicle parameter conditioning based on the vehicle handling stability test rapid evaluation system, vehicle handling stability can be optimized at an early stage of automobile product development, therefore, the market competitiveness of automobile products is effectively improved, and the brand effect of an automobile manufacturer is improved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a vehicle parameter optimization method in rapid evaluation of automobile handling stability. Background technique [0002] In the development of handling and stability performance, it is of engineering significance to quickly predict and control the vehicle performance at the conceptual design stage. [0003] As one of the important factors affecting the active safety of automobiles, handling stability not only affects the convenience of automobile driving, but also one of the main performances that determine the safe driving of high-speed automobiles. The quality of operation stability directly affects the user's intuitive experience. Good handling stability can adapt to the driving style of consumers, which is conducive to improving the brand effect of the vehicle. [0004] At present, a large number of strict vehicle performance tests are used at home and abroad to verify whether...

AI Technical Summary

Problems solved by technology

To sum up, the actual vehicle field test requires the enterprise to invest a lot of manpower, material resources, financial resources and other resources, which will lead to a lot of time spent on the evaluation and adjustment of the prototype vehicle, which is not conducive to the enterprise to reduce the development cost and shorten the development cycle

[0005] Current problems: 1. Automobile test data is usually not processed at the test site. Due to the influence of driver’s subjective factors, there must be invalid test data in the test. If the invalid test data is found and eliminated in the later data processing, the existing valid test data The data is insufficient to support comprehensive analysis and evaluation of vehicle performance, and new field tests are required

Therefore, the entire test process wasted a lot of manpower, material and financial resources, prolonging the development cycle of the car and reducing the market competitiveness of the product.

2. The validity of the car test is usually judged by the driver. Due to the influence of human subjective factors, different drivers have different judgment standards; Extended car performance tuning cycle

3. At present, there is a lack of rapid evaluation technology or related hardware reserves for vehicle handling stability tests in the market

4. The vehicle parameter adjustment process can only be implemented in the late adjustment stage of automobile development. For the early stage of product development, the research on virtual realization in the computer simulation environment starts late and has little experience. If there is no theoretical method as a guide, It is difficult to break the situation that independent brands lag behind foreign products in terms of drivability evaluation technology and lack competitiveness in the short term

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