Automobile chassis lining matching method based on rigidity matrix

A technology of stiffness matrix and matching method, applied in vehicle components, special data processing applications, instruments, etc., can solve the problems of unsatisfactory development methods, time-consuming and labor-intensive, etc., to meet the development trend of virtual prototyping, reduce testing, and optimize The effect of the matching process

Inactive Publication Date: 2018-06-26
BRILLIANCE AUTO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing method, the method of simply making samples for subjective and objective testing is extremely time-consuming and laborious, and when matching the bushings, the stiffness of the bushings of competing cars with similar structures is often used. This development method is obviously unsatisfactory

Method used

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  • Automobile chassis lining matching method based on rigidity matrix
  • Automobile chassis lining matching method based on rigidity matrix
  • Automobile chassis lining matching method based on rigidity matrix

Examples

Experimental program
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Embodiment 1

[0022] The automobile chassis liner matching method based on stiffness matrix in the present embodiment, its flow process is as follows figure 1 shown, including the following steps:

[0023] Step 101, select a car as a standard model, and obtain the stiffness of the chassis system of the standard model. In this embodiment, the wheel center stiffness matrix of the chassis suspension of the vehicle is obtained by obtaining the selected vehicle type. Due to the symmetry of the chassis suspension, this matrix considers all the bushings on one side of the suspension to obtain the selected vehicle The chassis suspension wheel center stiffness matrix, the specific process is:

[0024] First of all, according to the previous market research, the performance index that the chassis bushing to be matched needs to meet is proposed, and on this basis, the target model of the elastic kinematic performance of the chassis is selected, and the elastic kinematic performance of the suspension ...

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Abstract

The invention discloses an automobile chassis lining matching method based on a rigidity matrix and relates to an automobile chassis system. As for determining of the rigidity of linings of suspension, all possible combinations of the rigidity of linings of a chassis for meeting target elastic kinematics performance are precisely provided; through the method, the current situations that the linings are selected according to experience and based on single parts, and systematic understanding to the chassis linings is lacked are improved, repeated trials and errors during matching of the chassissuspension linings are avoided, and the number of the trials is greatly decreased; the suspension development matching process is optimized, and a large number of costs can be saved in application; meanwhile, the virtual prototyping development trend of current automobile development is also met, the elastic kinematics performance of the chassis suspension can be optimized directionally without the need of manufacturing an actual automobile, the suspension matching time is shortened, and the automobile development progress is accelerated; and the optimal solution of the elastic kinematics performance of a given target can be achieved with a minimum number of the linings, the possible design redundancy at the chassis suspension lining designing stage is removed, and the automobile cost is saved.

Description

technical field [0001] The invention relates to an automobile chassis system, in particular to an automobile chassis bushing matching method based on stiffness matrix. Background technique [0002] Chassis is one of the four core systems of a car, and the matching of the chassis system is the core content and difficulty of vehicle development. The performance of the car chassis directly affects the driving quality of the car. As the main assembly of the chassis system, the quality of the suspension is the most critical factor affecting the ride comfort and handling stability of the vehicle. The matching of each bushing of the chassis suspension is very important to the performance development of the vehicle. [0003] For a long time, the matching development of the suspension has focused on the matching of the main spring of the suspension, the shock absorber and the stabilizer bar. The main reason is that the number of chassis bushings is large and the angular position r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G99/00G06F17/50
CPCB60G99/002G06F30/20
Inventor 苗为为
Owner BRILLIANCE AUTO
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