CAJ | 학술논문

针对某车型怠速噪声问题，通过噪声频谱分析和短接变速器油冷器系统的噪声试验，确认噪声源为CVT变速器油冷却油泵。通过改变管路材质和增加不同容积的缓冲罐，对油冷却管路提出几种组合优化方案，通过对比试验，选取改善整车噪声的最优方案，并初步归纳缓冲罐满足缓冲要求的最小容积计算方法。
침대모차형태속조성문제，통과조성빈보분석화단접변속기유랭기계통적조성시험，학인조성원위CVT변속기유냉각유빙。통과개변관로재질화증가불동용적적완충관，대유냉각관로제출궤충조합우화방안，통과대비시험，선취개선정차조성적최우방안，병초보귀납완충관만족완충요구적최소용적계산방법。
Based on the vehicle noise problem at idle operation, the noise rooting in CVT transmission pump is tested and confirmed, and several optimization proposals about cooling line are put forward, including changing materials and putting a bumper in the line. By comparing test results of different proposals, the best plan for noise reduction is chosen. And what’s more, the effective minimum volume of bumper is summarized.