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Automobile environment wind tunnel simulation method based on digital twinning technology

A simulation method and automobile technology, applied in the field of automobile environment virtual test, can solve the problems of long construction period and high test cost of wind tunnel, and achieve the effect of improving design efficiency and quality, high-precision prediction and reducing cost.

Pending Publication Date: 2021-11-09
CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD +1
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  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention proposes an automotive environment wind tunnel simulation method based on digital twin technology to solve the problems of long construction period and high test cost of existing automotive environment wind tunnels

Method used

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  • Automobile environment wind tunnel simulation method based on digital twinning technology
  • Automobile environment wind tunnel simulation method based on digital twinning technology
  • Automobile environment wind tunnel simulation method based on digital twinning technology

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Embodiment Construction

[0033] It should be noted that the features of the present invention in the present invention may be combined with each other in the case of an unable conflict.

[0034] In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "post", "left", "right", " The orientation of the vertical "," horizontal "," top "," bottom "," inside "," outside "indication is based on the orientation or positional relationship shown in the drawings, is only for convenience of description of the present invention and simplification. Description, rather than indicating or implying that the device or element must have a particular orientation, constructing and operating in a particular orientation, and thus is not to be construed as limiting the invention. Moreover, the term "first", "second" is used only for the purpose of describing, and cannot be understood as an indication or implies a relative importance or ...

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Abstract

The invention provides an automobile environment wind tunnel simulation method based on a digital twinning technology. The method comprises the following steps: S1, carrying out one-dimensional simulation modeling on an automobile cooling and air conditioning system; S2, establishing CAD models of an environment wind tunnel, an automobile and ancillary facilities and equipment; S3, performing grid division and loading calculation boundaries on the CAD model to obtain an automobile environment wind tunnel CFD simulation model; S4, carrying out joint simulation calculation on the one-dimensional simulation model and the CFD simulation model through a one-dimensional and three-dimensional joint simulation solving method, so as to obtain an automobile environment wind tunnel digital twinborn simulation model; S5, collecting test data and virtual simulation data and storing the test data and the virtual simulation data in a database; and S6, analyzing the test data, the simulation data and the difference between the test data and the simulation data through the cloud computing platform so as to update the simulation model. The automobile environment wind tunnel simulation method based on the digital twin technology solves the problems that an existing automobile environment wind tunnel is long in construction period, high in test cost and the like.

Description

Technical field [0001] The present invention belongs to the field of automotive environmental virtual test technology, in particular, there is a car environmental wind hole simulation method based on digital twin technology. Background technique [0002] The environmental wind tunnel test is an indispensable fundamental test in the process of automobile research and development. Car environmental wind holes can reproduce high temperatures, low temperature, damp heat, sunlight, rain, snow, etc. in the laboratory, and are not limited by natural environmental conditions, season and geographical restrictions. The development of design and cooling and air conditioning systems are important. However, due to the high design cycle of the automotive environment wind, the cost of the car environmental wind tunnel requires a long preparation period and a large number of sample truck test costs and test funds. How to carry out environmental wind hole virtual test predict the performance of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/02G01M9/08
CPCG01M9/02G01M9/08
Inventor 许翔牟连嵩王丹陈皓王远徐俊芳伊虎城汪琳琳于镒隆
Owner CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD
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