Dynamic stiffness NVH (Noise Vibration and Harshness) evaluation method for pure electric vehicle type suspension driving end bracket

• Main Authors: HU PENG, CHEN QINGSHUANG, LUO YICHAO, GONG XINGWANG, YUAN ZHENSONG, LI SHAOJIE, ZHONG CHENGPING
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to a pure electric vehicle howling control technology, and belongs to the field of vibration and noise (NVH) control. The dynamic stiffness NVH evaluation method for the pure electric vehicle type suspension active end support comprises an evaluation process and an evaluation curve derivation process. The method can be applied to the development stage of a pure electric vehicle type digital sample vehicle, the NVH design of the suspension active end support is helped, and therefore the purpose of eliminating or weakening howling in the vehicle is achieved, and the method is verified through a certain pure electric vehicle project. 本发明涉及纯电动汽车啸叫控制技术，属于振动与噪声(NVH)控制领域。具体涉及一种纯电动车型悬置主动端支架动刚度NVH评估方法，该评估方法包括评估流程以及评估曲线推导过程两部分内容。本发明可应用在纯电动车型数字样车开发阶段，帮助悬置主动端支架NVH设计，从而达到消除或减弱车内啸叫的目的，且通过某纯电动汽车项目得到验证。