In-vehicle wind noise prediction method and device, electronic equipment and storage medium
A technology for in-vehicle noise and prediction methods, which is applied in design optimization/simulation, electrical digital data processing, computer-aided design, etc., can solve the problems of difficult target determination, long cycle, large gap between actual vehicles, etc., and achieves high prediction reliability. , the method is simple, the effect of the method is easy
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Embodiment 1
[0037] figure 1 This is a flow chart of an in-vehicle wind noise prediction method provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation of predicting the in-vehicle wind noise level in the early stage of vehicle model development. The method can be predicted by an in-vehicle wind noise The in-vehicle wind noise prediction device can be implemented in the form of hardware and / or software, and the in-vehicle wind noise prediction device can be configured in an electronic device for in-vehicle wind noise prediction. like figure 1 As shown, the method includes:
[0038] S110. Acquire a time-domain signal of wind noise on the side window surface of the model vehicle under different wind speeds.
[0039] Among them, the model car may be a hard resin model car, which is a vehicle in the development stage.
[0040] In this embodiment, the wind speed can be set according to the predicted demand of the wind noise in the model vehicle. Fo...
Embodiment 2
[0061] figure 2 This is a flowchart of a process for determining a wind-noise correlation relationship provided by Embodiment 2 of the present invention, and the relationship between this embodiment and the above embodiments is a detailed description of the process for determining a wind-noise correlation relationship. like figure 2 As shown, the method includes:
[0062] S210 , acquiring the interior wind noise time domain signal and the side window surface wind noise time domain signal of the base vehicle at different vehicle speeds;
[0063] Specifically, the side window of the base vehicle is divided into several test areas, and the area S of the test area of each test area is recorded after measurement and calculation. i and the total area S of the side windows. Among them, the division of the test area can be divided according to experience in the positions close to the rearview mirror and the A-pillars, and the positions far from the rearview mirrors and the A-pi...
Embodiment 3
[0085] Figure 5 It is a flowchart of another method for predicting wind noise in a vehicle provided in the third embodiment of the present invention. The relationship between this embodiment and the above-mentioned embodiment is the acquisition of the time domain signal of the wind noise on the side window surface of the model vehicle under different wind speeds. The procedure is described in further detail. like Figure 5 As shown, the method includes:
[0086] S510 , dividing the surface of the side window of the model car according to a preset dividing manner to obtain at least two test areas;
[0087] In this solution, the division method can be set according to the forecast requirements of the wind noise inside the model car. Specifically, the division method is the same as that of the base vehicle. For example, the side window surface of a model car may be divided into 10 test areas.
[0088] S520 , based on the surface microphones installed on the at least two tes...
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