Macpherson front suspension hard point configuration method

A configuration method and front suspension technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of prolonging the development cycle of the whole vehicle, increasing design costs, etc. reliable effect

Inactive Publication Date: 2018-03-09
SAIC GENERAL MOTORS +1
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  • Abstract
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Problems solved by technology

If the design of the key hard points of the suspension is unreasonable, it will lead to a large number of repeated revisions in the middle and late stages of the subsequent car development and design, thereby prolonging the vehicle development cycle and increasing the design cost

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  • Macpherson front suspension hard point configuration method
  • Macpherson front suspension hard point configuration method

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Embodiment Construction

[0017] Preferred embodiments of the present invention are now described with reference to the drawings, wherein like reference numerals are used to refer to like structural features throughout.

[0018] see figure 1 , providing a configuration method for the hard point of the MacPherson front suspension, which includes: S100, analyzing the hard point assembly of the existing MacPherson front suspension entity, and obtaining its hard point coordinates; S200, based on the multi-body Dynamics theory, combining the obtained hard point coordinates to establish the multi-body dynamics simulation model of the MacPherson front suspension; S300, obtain and compare the multi-body dynamics simulation model with the existing MacPherson front For the characteristic parameters under the experimental conditions, adjust the multi-body dynamics simulation model so that the simulation results and the measured results have a preset matching degree; Carry out experimental design on the K charact...

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Abstract

The invention provides a Macpherson front suspension hard point configuration method. The Macpherson front suspension hard point configuration method comprises the steps that S100, an existing Macpherson front suspension entity hard point assembly is analyzed to obtain its hard point coordinates; S200, a Macpherson front suspension many-body dynamics simulation model is established by combining with the hard point coordinates based on a many-body dynamics theory; S300, characteristic parameters of the many-body dynamics simulation model and an existing Macpherson front suspension entity undergiven experiment working conditions are obtained and compared, and the many-body dynamics simulation model is adjusted to make a simulation result and an actually measured result have a preset matching degree; S400, a Macpherson front suspension joint simulation model is established, the hard point coordinates serve as design variables, and experimental design is conducted on the characteristics Kand/or characteristic C and/or steering characteristics of a Macpherson front suspension to obtain the influence degrees of point coordinate changes on target values of the characteristics K and/or characteristic C and/or steering characteristics; S500, the influence degrees are analyzed to obtain target value sensitivity matrixes of the point coordinate changes to the characteristics K and/or characteristic C and/or steering characteristics; a Macpherson front suspension hard point is configured based on the sensitivity matrixes.

Description

technical field [0001] The present invention relates to the field of vehicle component design, and more particularly, the present invention relates to improved hard point locations in a MacPherson front suspension of a vehicle. Background technique [0002] In the early stage of automobile development and design, the rational design of the hard point is not only crucial to the development and design process of the suspension, but also has important significance for the vehicle dynamic performance. If the design of the key hard points of the suspension is unreasonable, it will lead to a large number of repeated revisions in the middle and late stages of the subsequent car development and design, thereby prolonging the vehicle development cycle and increasing the design cost. As a common suspension structure in front-engine front-drive vehicles, MacPherson front suspension has many advantages such as simple structure, easy layout, and low cost. Therefore, how to establish a r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F2119/06
Inventor 刘士士舒进杨万安张秋雁郎锡泽
Owner SAIC GENERAL MOTORS
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