Electric vehicle idle speed noise matching method and device

Abstract

The invention relates to the technical field of vehicles, in particular to an electric vehicle idle speed noise matching method and device, and the method comprises the steps: recognizing an idle speed noise excitation source of an electric vehicle and a corresponding transmission path; according to the idling noise excitation source and the corresponding transmission path, the in-vehicle noise of the electric vehicle is obtained; and according to the in-vehicle noise, matching a whole vehicle idle speed noise target value of the electric vehicle, so as to generate an idle speed noise optimization strategy of the electric vehicle based on the whole vehicle idle speed noise target value. According to the method, the target value can be compared in the vehicle design stage, design errors are reduced, the vehicle development period is shortened, the later mold modification and change cost is reduced, the vehicle model development and design cost is reduced, idling noise influencing components and system indexes can be rapidly formulated, and the method is accurate and effective.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method and device for matching idling noise of an electric vehicle. Background technique [0002] With the continuous development and maturity of automobile technology, consumers have increasingly higher requirements for the noise inside the car. [0003] Although for the traditional power idling noise, matching and optimizing the engine excitation and suspension vibration isolation performance, the idling noise is reduced, and the electric vehicle does not have the traditional engine noise excitation, and the overall noise level in the car is reduced. However, since electric vehicles have no engine sound masking effect, compressors, cooling electronic fans, and HVAC (Heating, Ventilation and Air Conditioning, heating, ventilation and air conditioning) blowers become the main noise excitation sources. [0004] Therefore, how to match the idling noise of electric vehicles has ...

AI Technical Summary

Problems solved by technology

[0003] Although aiming at the traditional power idling noise, matching and optimizing the engine excitation and suspension vibration isolation performance, the idling noise is reduced, and the electric vehicle does not have the traditional engine noise excitation, and the overall noise level in the car is reduced.

However, since electric vehicles have no engine sound masking effect, compressors, cooling electronic fans, and HVAC (Heating, Ventilation and Air Conditioning, heating, ventilation and air conditioning) blowers become the main noise excitation sources

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