Vehicle engine inlet simulation calculation method and apparatus

A simulation calculation and air intake technology, applied in the field of vehicle engineering, can solve the problems of difficult realization, long test period and poor practicability, and achieve the effect of promoting research and development, low cost and short period.

Inactive Publication Date: 2017-12-19
BORGWARD AUTOMOTIVE CHINA CO LTD
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Problems solved by technology

The existing main method for evaluating engine airway performance is the airway test method. The airway flow coefficient and tumble/vortex intensity corresponding to each valve lift are teste

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  • Vehicle engine inlet simulation calculation method and apparatus
  • Vehicle engine inlet simulation calculation method and apparatus
  • Vehicle engine inlet simulation calculation method and apparatus

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Embodiment Construction

[0045] The core of the present invention is to provide a method and device for simulation calculation of vehicle engine intake port, which has simple calculation operation, short cycle, low cost, high calculation accuracy, and the calculation model is more flexible to build, and can be used for multiple intake port schemes The contrast optimization among them, according to the results to select the solution with the best performance of the intake port, can also assist the engine design.

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other em...

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Abstract

The invention discloses a vehicle engine inlet simulation calculation method and apparatus. The method comprises the steps of determining inlet valve lift test points of an inlet of a vehicle engine, and determining inlet simulation models corresponding to the inlet valve lift test points; performing gridding on the inlet simulation models corresponding to the inlet valve lift test points; setting calculation domain boundary conditions corresponding to the gridded inlet simulation models, and setting a calculation solver by utilizing a fluid mechanics theory; and according to the calculation domain boundary conditions and the gridded inlet simulation models, performing calculation by utilizing the calculation solver to obtain simulation results corresponding to the inlet lift test points. The method is simple in calculation operation, short in cycle, low in cost and high in calculation precision; a calculation model is relatively flexible to build; the method and the apparatus can be used for comparative optimization among multiple inlet schemes; the scheme with the best inlet performance is selected according to the results; and engine design can be assisted.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to a method and device for simulation calculation of a vehicle engine intake port. Background technique [0002] At present, energy shortage and environmental pollution have received extensive attention around the world. In the vehicle industry, the national regulations on vehicle emissions and fuel consumption are becoming more and more stringent. Therefore, vehicle companies have adopted a series of new technologies in engine applications to meet these requirements, such as using in-cylinder direct injection and Supercharging technology can improve engine power while reducing fuel consumption and emissions. However, the realization of this technology puts forward higher requirements for engine design. [0003] The structural design of the intake port directly affects the intake air volume of the engine and the airflow movement in the cylinder. Reasonable organization ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23
Inventor 李丽
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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