Automobile aerodynamic standard model with intelligent sensing function

An aerodynamic and intelligent perception technology, applied in aerodynamic tests, testing of machine/structural components, instruments, etc., which can solve problems such as single shape and single function

Pending Publication Date: 2021-07-23
CHINA AUTOMOTIVE ENG RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides an automobile aerodynamic standard model with intelligent perception function, which solves the technical problems of the existing aerodynamic model with single shape and single function

Method used

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  • Automobile aerodynamic standard model with intelligent sensing function
  • Automobile aerodynamic standard model with intelligent sensing function
  • Automobile aerodynamic standard model with intelligent sensing function

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Since the existing standard model of automobile aerodynamics can achieve functional limitations and cannot meet the needs of multi-physical quantity measurement, the present invention provides an "intelligent" standard model of automobile aerodynamics with "perception" function, that is, CAERI Aero Model. In this embodiment, the standard model includes the car body 1 (including the head part 101 , the body part 102 and the rear part 103 ), a back module, a chassis and an engine compartment arranged on the head part 101 of the car body 1 .

[0060] For car body 1, as attached figure 1 ~ attached figure 2 As shown, the volume of the car body 1 is three quarters of the whole car, the car body 1 does not have a back module, and the car body 1 is provided with an air intake grille 13, a replaceable rearview mirror module 2 and a detachable engine compartment cover; if attached image 3 As shown, the back module is provided with six conical positioning blocks, and the cen...

Embodiment 2

[0065] The only difference from Embodiment 1 is that it also includes a pressure measuring sheet 17, a pressure scanning valve sensor, a cobra probe, an airfoil angle sensor, a temperature and humidity sensor, an acceleration sensor, a five-hole probe, and a laser range finder 19 . The pressure measuring piece 17 is arranged on the upper surface of the car body 1, and the pressure scanning valve sensor is arranged inside the car body 1, and the pressure scanning valve sensor is used to measure the pressure distribution on the surface of the car body 1; the cobra probe is arranged on the engine hatch sensor On the upper surface of the arrangement area, the cobra probe is used to measure the air turbulence; the airfoil angle sensor is arranged on the upper surface of the front sensor arrangement area, and the airfoil angle sensor is used to measure the airflow angle; the temperature and humidity sensor is arranged on the top sensor arrangement area, The temperature and humidity s...

Embodiment 3

[0067] The only difference with Embodiment 1 is that the back module is a sedan type, as attached Figure 17 As shown, the conventional wind resistance test can be carried out: there is no need to install other sensors, and the standard model can be fixed on the wind tunnel force balance. Specifically, make a 1:1 model for a full-scale wind tunnel test, or make a scale model for a scaled-down wind tunnel test.

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Abstract

The invention relates to the technical field of automobile aerodynamic data testing, in particular to an automobile aerodynamic standard model with an intelligent sensing function. The model comprises a vehicle body; and a back which is detachably connected with the vehicle body. Due to the fact that the back is detachably connected with the vehicle body, conversion of various vehicle types can be rapidly achieved by replacing the backs of different shapes, and therefore the stress conditions of the different vehicle types in the flow field and the flow conditions of the flow fields nearby the vehicle types can be rapidly obtained through wind tunnel tests or simulation calculation; besides, a plurality of sensor arrangement areas are designed on the vehicle body, so that the standard model can be combined with each sensor to obtain environmental physical quantity parameters around the vehicle body and response parameters of the vehicle body, and an intelligent sensing function is realized; and compared with a traditional aerodynamic model, the model has the characteristics of multiple models and multiple functions.

Description

technical field [0001] The invention relates to the technical field of automobile aerodynamic data testing, in particular to an automobile aerodynamic standard model with an intelligent perception function. Background technique [0002] In wind tunnel tests, foreign researchers have proposed many standard models with distinctive features for automotive aerodynamics research. Provide benchmarking and verification models for benchmarking, calibration, test technology development, and inspection of CFD calculation accuracy. In addition, with the help of standard models, the communication within the automotive aerodynamics industry has also been enhanced and become a communication language. [0003] So far, foreign countries have developed a variety of vehicle aerodynamic models. Classified by the complexity of the aerodynamic shape of the model, it can be divided into simplified blunt body model, simple car model and complex car model. The outline and surface of the model are...

Claims

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Application Information

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IPC IPC(8): G01M9/08G01M9/02G01M9/04
CPCG01M9/08G01M9/02G01M9/04
Inventor 黄滔周舟徐胜金何显中刘锦生王庆洋徐磊补涵
Owner CHINA AUTOMOTIVE ENG RES INST
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