Automobile front-end cooling module air volume test system and method

Abstract

The invention discloses an automobile front-end cooling module air volume test system, which is characterized in that a radiator to be tested is fixed at an installation position of a corresponding automobile model, a circle of static pressure ring is fixed outside each of an air inlet end and an air outlet end of the radiator, and the two static pressure rings are connected with a differential pressure gauge through signal lines and output pressure signals to the differential pressure gauge. The method has the advantages that 1, direct speed measurement is avoided, so that the test precision is improved; 2, the original flow field distribution is not interfered, and artificial test errors are not introduced; and 3, the air volume can be measured during the whole vehicle road test, and the air inlet volume at different vehicle speeds can be obtained in real time.

Description

Technical field[0001]The present invention relates to the field of automotive vehicle testing technologyBackground technique[0002]The automotive internal combustion engine is active while driving the car, and about 60% of the calories need to be dispersed. About 50% of the heat is taken away, and there is a heat of about 50% (ie 30% of total heat). Cooling liquid take away. Therefore, to ensure that the internal combustion engine is working properly, there must be a stable and efficient cooling system.[0003]The cooling system is typically composed of a heat sink, a cooling fan, a water pump, a thermostat, and a pipe. During the design of the entire cooling system, it is necessary to select and match the above components. This process involves the parameters of each component, especially the various parameters of the heat sink, such as the air volume, air intake temperature, water supply, water temperature, and heat transfer. With the parameters of the above parts, you can match the ...

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Problems solved by technology

[0006] 1. After the air passes through the front grille of the car, it is generally in a very turbulent state, that is, in the form of turbulent flow. At this time, the pulsation velocity in the vertical flow direction is very large, which will cause the measured value of wind speed to change rapidly, and the reading is inaccurate, that is to say, it cannot be measured. This is also the reason why direct measurement of flow field velocity is generally avoided in fluid mechanics;

[0007] 2. The wind speed test equipment will affect the original flow field distribution, which will lead to the introduction of unnecessary human errors;

[0008] 3. Generally, wind speed measurement can only be measured in the laboratory, and cannot be tested in the actual road test of the vehicle

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