One-dimensional cooling model correction method
A technology of cooling model and correction method, applied in the direction of design optimization/simulation, etc., can solve the problems that the input parameters of related models cannot be given completely accurately, and the calculation accuracy of one-dimensional simulation cannot meet the practical requirements, and achieve the effect of rapid correction.
Pending Publication Date: 2021-06-08
GUANGZHOU AUTOMOBILE GROUP CO LTD
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, since the software itself simulates the cooling system through an iterative convergence algorithm, and usually the relevant model input parameters cannot be completely and accurately given, it is difficult for the calculation accuracy of one-dimensional simulation to meet the practical requirements. In order to meet the requirements, it is usually necessary to combine experimental test data Calibrate the model
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0021] like figure 1 As shown, the one-dimensional cooling model correction method provided by the embodiment of the present invention includes:
[0022] Step S10: building a cooling system test bench;
[0023] In step S10, the cooling system bench test is a test that simulates the layout of the cooling system of the entire vehicle and is performed before the entire vehicle is manufactured. In the cooling system test bench, the components involved in the cooling system of the real vehicle (such as the engine, transmission and cooling system) are installed together according to the arrangement in the real vehicle, and the driving components are driven by the dynamometer t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The one-dimensional cooling model correction method comprises the following steps: establishing a cooling system test bed; building a one-dimensional simulation model of the cooling system; setting a core heat exchange element of the cooling system and an associated monitoring point as calibration objects; setting a flow coefficient as a calibration parameter; obtaining a test measurement value of a core heat exchange element associated monitoring point by using a cooling system test bed; using a one-dimensional simulation model to obtain a simulation calculation value of the core heat exchange element associated monitoring point; comparing the obtained test measurement value with the simulation calculation value, and determining whether an error between the test measurement value and the simulation calculation value of each core heat exchange element associated monitoring point is within a set error range; if the associated monitoring points with the errors of the test measurement values and the simulation calculation values outside the set error range exist, selecting the associated monitoring point with the largest error, adjusting the corresponding flow coefficient, and continuing simulation and comparison until the errors of the test measurement values and the simulation calculation values of all the associated monitoring points are within the set error range.
Description
technical field [0001] The invention relates to an engine water cooling system, in particular to a one-dimensional cooling model correction method. Background technique [0002] One-dimensional simulation analysis of cooling system plays a vital role in the forward development of cooling system matching. Using simulation software to establish a one-dimensional simulation model of cooling system can simulate the working conditions of the cooling system and analyze the cooling system. However, since the software itself simulates the cooling system through an iterative convergence algorithm, and usually the relevant model input parameters cannot be completely and accurately given, it is difficult for the calculation accuracy of one-dimensional simulation to meet the practical requirements. In order to meet the requirements, it is usually necessary to combine experimental test data Calibrate the model. [0003] The foregoing description is provided to provide general background...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 崔振华朱亮朱永成曾志新
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD