優(yōu)化扭矩管理器消除整車80KPH拍振問題

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摘 要：某車型在開發(fā)驗(yàn)證階段，整車NVH性能評價在80KPH車速，存在前排類似拍振的轟鳴聲，后排座椅抖動的問題，通過優(yōu)化扭矩管理器單體設(shè)計(jì)、動平衡設(shè)計(jì)，減弱振動源一階振動，達(dá)到改善該問題的目標(biāo)，并驗(yàn)證有效，批量實(shí)施。

關(guān)鍵詞：NVH性能 一階振動 改進(jìn) 提升 驗(yàn)證

Abstract：In the development and verification stage of a vehicle model， when the NVH performance evaluation of the whole vehicle is at the speed of 80kph， there are problems such as the roar of beating vibration in the front row and the jitter of the rear seats. By optimizing the single body design and dynamic balance design of the torque manager， the first-order vibration of the vibration source is reduced to achieve the goal of improving this problem， which is verified to be effective and implemented in batch.

Key words：NVH performance， first-order vibration， improvement， promotion， verification

1 引言

目前市場上常見的四驅(qū)車輛，根據(jù)使用時機(jī)可以分為：分時四驅(qū)、全時四驅(qū)和適時四驅(qū)，其中適時四驅(qū)是一種智能的四驅(qū)方式，只有需要脫困及一些特殊情況下，傳動系統(tǒng)才會從兩驅(qū)切換為四驅(qū)，其它時候都采用兩驅(qū)。（剩余2059字）