Abstract: Accumulator is mostly used in the automatic transmission hydraulic system to absorb the pressure shock in the oil circle and making the pressure more steady. The stable pressure could improve the torque control accuracy of the vehicle and make the vehicle have better driving ability. Through the research of the parameters of accumulator, the influence of relevant factors is confirmed, and the key application methods of the accumulator are summarized.It could provides some reference for the further research.

Key words: Automatic transmission; Pressure control system; Accumulator

摘要： 蓄能器在自动变速器液压系统中常用于吸收液压油路中的压力冲击来改善系统压力的稳定性，提升整车扭 矩传递的精度进而使整车具备较好的驾驶性。文章通过蓄能器相关参数的研究，确认了相关要素的影响，并总结了 蓄能器匹配应用的方法及思路，为后续技术的深入研究提供一定的参考。

关键词: 自动变速器；液压系统；蓄能器