Whole vehicle transmission system noise evaluation method, device and equipment and storage medium
A technology of transmission system and evaluation method, which is applied to measuring devices, instruments, and measuring ultrasonic/sonic/infrasonic waves, etc., to achieve the effect of accurate evaluation
Pending Publication Date: 2021-12-10
SHANGHAI AUTOMOBILE GEAR WORKS
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[0005] The main purpose of the present invention is to provide a method, device, equipment and storage medium for evaluating the noise of the vehicle transmission system, aiming at solving the technical problem of how to accurately evaluate the noise of the vehicle transmission system in the prior art
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[0090] Based on the above-mentioned first embodiment, the method for evaluating the noise of the vehicle transmission system in this embodiment further includes in the step S50:
[0091] Step S51: Acquiring subjective evaluation indicators and preset weight ratios.
[0092] It can be understood that the subjective evaluation index refers to the subjective feeling of the human body. Since the subjective feeling of the human body is also very important when the vehicle is running, it is necessary to introduce the subjective evaluation index to evaluate the noise of the vehicle transmission system.
[0093] It should be noted that, in order to refer to the subjective evaluation, a noise test engineer is required to evaluate the noise. The evaluation scores are shown in Table 1. The scores 1, 2, 3, 4, 5, and 6 are different degrees of dissatisfaction, and 7 is acceptable. Receiving, medium, average, 8, 9, and 10 are different degrees of satisfaction, and are scored according to th...
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The invention belongs to the technical field of vehicle noise evaluation, and discloses a whole vehicle transmission system noise evaluation method, device and equipment and a storage medium. The method comprises the following steps: acquiring an impact vibration signal and a non-impact vibration signal of a whole vehicle transmission system; determining a first kurtosis evaluation parameter and a first peak value evaluation parameter according to the impact vibration signal; determining a second kurtosis evaluation parameter and a second peak value evaluation parameter according to the non-impact vibration signal; determining an objective evaluation index according to the first kurtosis evaluation parameter, the first peak value evaluation parameter, the second kurtosis evaluation parameter and the second peak value evaluation parameter; and evaluating the noise of the whole vehicle transmission system according to the objective evaluation index. Through the above mode, the vibration signals when the transmission system is impacted and not impacted are collected, the two dimensions of the peak value and the kurtosis are selected according to the vibration signals to generate the evaluation parameters, and the objective evaluation indexes are generated according to the evaluation parameters when the transmission system is impacted and not impacted, so that the noise of the whole vehicle transmission system can be accurately evaluated.
Description
technical field [0001] The invention relates to the technical field of automobile noise evaluation, in particular to a noise evaluation method, device, equipment and storage medium of a complete vehicle transmission system. Background technique [0002] As the main vibration and noise source of automobiles, powertrain noise occupies a significant proportion of automobile noise. With the increasingly stringent national regulations on vehicle noise and the increasingly high requirements of The control of assembly noise is urgent. [0003] However, most of the test methods for the transient impact noise of the vehicle power transmission system are evaluated based on the driver's subjective driving perception, so it is impossible to objectively evaluate the noise of the vehicle power transmission system. [0004] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prio...
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Login to View More IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 王乐张加林许长龙王朋朋曾文杰
Owner SHANGHAI AUTOMOBILE GEAR WORKS