Automobile real-time dynamics modular modeling method and device and storage medium

A modeling method and dynamics technology, applied in design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve the problem that the vehicle dynamics model is difficult to meet the real-time accuracy requirements of simulation, and achieve the accuracy of simulation Effect

Pending Publication Date: 2020-09-11
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a modular modeling method, device, storage medium and terminal equipment for automobile real-time dynamics, aiming to solve the problem that the current automobile dynamics model is difficult to meet the real-time accuracy requirements of simulation

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  • Automobile real-time dynamics modular modeling method and device and storage medium
  • Automobile real-time dynamics modular modeling method and device and storage medium
  • Automobile real-time dynamics modular modeling method and device and storage medium

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Embodiment Construction

[0042] Such as figure 1 As shown, the embodiment of the present invention provides a real-time vehicle dynamics modular modeling method, including:

[0043] Obtain the mechanical component characteristics of each component in the system to be processed;

[0044] If the mechanical component property of the element is an elastic property, an elastic constraint block is generated, and the elastic constraint block takes the configuration of an adjacent module as input and outputs a force or moment;

[0045] If the mechanical component characteristic of the element is a rigid body characteristic, a rigid body block is generated, and the rigid body block takes the adjacent module or external force or moment as input and outputs the configuration, and the rigid body blocks are isolated by elastic constraint blocks;

[0046] The mechanical properties of the element being kinematic in nature generate a configuration block that takes as input the configuration of adjacent modules and o...

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Abstract

The invention discloses an automobile real-time dynamics modular modeling method which comprises the following steps: acquiring mechanism part characteristics of each element in a to-be-processed system, and generating different modules according to different mechanism part characteristics; an elastic characteristic element and a rigid body element are modeled through an elastic constraint block and a rigid body block, and other elements are modeled through a configuration block and a force-moment block. The elastic constraint block and the rigid body block realize isolation and decoupling ofthe whole vehicle dynamics system; generation of an algebraic differential equation is effectively avoided; the established models are ordinary differential equations, the requirement for simulation real-time performance is met, the configuration blocks and the force-moment blocks help to construct hierarchical modular model modules, corresponding modules in the models can be conveniently replacedby real objects of different levels, real object in-loop simulation of various levels of an automobile is achieved, and the requirement for simulation accuracy is met. The problem that an existing automobile dynamics simulation model cannot accurately achieve verification of an intelligent driving motion control algorithm in real time is solved.

Description

technical field [0001] The invention relates to the field of vehicle dynamics simulation modeling, in particular to a vehicle dynamics modeling method for virtual verification of intelligent vehicle motion control. Background technique [0002] Vehicle motion control is one of the core technologies of intelligent driving, and major OEMs have been insisting on independent development. To independently develop motion control algorithms, it is first necessary to establish a realistic real-time vehicle dynamics modular model, and to test and verify the control algorithms in the stages of model-in-the-loop, hardware-in-the-loop, and driving simulator-in-the-loop simulations. [0003] Since it is necessary to establish a real-time dynamic model of the vehicle in the verification of the intelligent driving motion control algorithm, there are some systems, assemblies, and components that are difficult to model in the vehicle, and it is difficult to meet the needs of hardware-in-the-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/15G06F119/14
Inventor 王博李秦钟国旗查鸿山翁诗晶王晓波赵明新
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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