摘要
无同步器电机-变速器直连系统在电动汽车应用中具有传动效率高、结构紧凑、制造成本低的优点,但是在变速器换挡过程中,接合套和接合齿圈的同步过程缓慢,甚至存在打齿或无法换挡的情况。该文通过对驱动电机转矩的主动控制,实现接合套与接合齿圈之间相对转速和相对转角的"零转速差"和"零转角差"双目标跟踪控制。为了避免驱动电机主动同步控制过程中由于频繁在驱动与制动象限内切换造成的齿间敲击,提出了以驱动电机工作象限切换次数最少为目标的最优转矩主动对齿控制算法。实车测试表明:主动对齿控制算法能够实现快速、平稳换挡,并将换挡过程的动力中断时间缩短到300 ms内。
Motor coupled mechanical transmissions without synchronizers for electric vehicle applications have high transmission efficiencies, compact structures and low manufacturing costs. However, the synchronization of the sleeve to the ring gear is slow and can produce shift shock and failure. Active control of the driving motor torque is used here to provide "zero speed difference" and "zero angle difference" tracking control of the relative speed and angle between the ring gear and the sleeve. An optimal torque synchronizing control algorithm is used to avoid gear striking caused by frequent switching between the motor drive and the brake quadrants during the active synchronizing control using minimum working quadrant switching of the motor. Vehicle tests show that the active synchronizing control algorithm provides fast, stable shifting and shortens the power interruption time of the shifting process to less than 300 ms.
作者
田丰
王立军
隋立起
曾远帆
周星月
田光宇
TIAN Feng;WANG Lijun;SUI Liqi;ZENG Yuanfan;ZHOU Xingyue;TIAN Guangyu(State Key Laboratory of Automotive Safety and Energy,Tsinghua University.Beijing 100084,China;Yibin Fengchuan Power Technology Co.,Ltd.,Yibin 644600,China;Beijing Spacecrafts.China Academy of Space Technology,Beijing 100080,China)
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第2期101-108,共8页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金项目(51775291)
校企合作项目(2019YESY0008)。
关键词
电动汽车
电机-变速器直连系统
机械式自动变速器
主动对齿控制
同步器
electric vehicle
motor-transmission coupled system
automatic mechanical transmission
active synchronizing control
synchronizer
