摘要
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。
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.
出处
《农业装备与车辆工程》
2015年第5期64-67,共4页
Agricultural Equipment & Vehicle Engineering
