Method and device for determining position of intermittent low-frequency sound problem in vehicle
A technique for intermittent, interior noise in vehicles
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Embodiment 1
[0050] Embodiments of the present invention provide a method for determining the location of an intermittent low-frequency sound problem in a vehicle, such as figure 1 shown, including:
[0051] S101, acquiring an interior noise signal and an exterior vibration signal under a preset working condition;
[0052] S102, determining the occurrence time period of the low-frequency sound problem based on the noise signal in the vehicle;
[0053] S103, processing the in-vehicle noise signal within the occurrence time period to obtain a first frequency characteristic of the in-vehicle noise signal;
[0054] S104, process the vibration signal outside the vehicle within the occurrence time, and determine the second frequency characteristic of each component outside the vehicle;
[0055] S105, based on the first frequency characteristic and the second frequency characteristic, determine the location of the low-frequency sound problem.
[0056] First, according to the analysis idea of ...
Embodiment 2
[0088] Based on the same inventive concept, the embodiments of the present invention provide a device for determining the location of the intermittent low-frequency sound problem in a vehicle, such as Figure 8 shown, including:
[0089] an acquisition module 801, configured to acquire the noise signal inside the vehicle and the vibration signal outside the vehicle;
[0090] a first determining module 802, configured to determine the occurrence time of the low-frequency sound problem based on the in-vehicle noise signal;
[0091] The second determining module 803 is configured to process the in-vehicle noise signal within the occurrence time, and determine the first frequency characteristic of the in-vehicle noise signal;
[0092] The third determining module 804 is configured to process the vibration signal outside the vehicle within the occurrence time, and determine the second frequency characteristic of each component outside the vehicle;
[0093] The fourth determinatio...
Embodiment 3
[0103]Based on the same inventive concept, an embodiment of the present invention provides a computer device, such as Figure 9 As shown, it includes a memory 904, a processor 902, and a computer program stored in the memory 904 and running on the processor 902. When the processor 902 executes the program, the above-mentioned determination of the location of the intermittent low-frequency sound problem in the vehicle is realized. steps of the method.
[0104] Among them, in Figure 9 In the bus architecture (represented by bus 900 ), which may include any number of interconnected buses and bridges, bus 900 will include one or more processors represented by processor 902 and various types of memory represented by memory 904 circuits are linked together. The bus 900 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bu...
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