摘要
为适应纯电动汽车多挡化需求,提出一种用于纯电动汽车的两挡机械式自动变速器(2-speed Automated Mechanical Transmission,2AMT)结构及其电子控制单元(Transmission Control Unit,TCU)的软硬件设计。该2AMT为无离合器式结构,TCU软硬件均采用模块化方法进行设计。同时,基于无霍尔传感器直流无刷电机原理,提出了实现换挡电机驱动和控制的端电压硬件检测法,并制定了TCU集成换挡控制策略等。经台架试验验证,该2AMT及其TCU能够实现自动换挡,系统集成度高、实时性强,换挡时间约为2 s。试验结果表明,该2AMT系统为纯电动汽车的降本增效提供了一种有效途径,同时可为后续的换挡优化研究等提供基础和依据。
A 2-speed automated mechanical transmission(2AMT)without the clutch was proposed to cater to the multi-speed demand for pure electric vehicles(PEVs)and the hardware and software for its transmission control unit(TCU)were developed by a block-based design method.In addition to typical modules such as the power module and the signal processing module for a control unit,the driver and control modules were introduced in details.Based on the theory of brushless direct current motor(BLDCM)without HALL sensor,the terminal voltage detection circuit was proposed for the gear-shifting actuator.And the whole gear-shifting strategy for the communication between the TCU and the motor control unit(MCU)was presented.It has been verified in the bench test that the 2AMT and its TCU can achieve automatic gearshifting.The system features a high degree of integration and strong real-time and the shifting time was about 2 s.The system offers an effective way to reduce cost and to increase efficiency for PHV manufacturers,and to provide a reference for further studies.
作者
陈林用
柴本本
林连华
张建武
CHEN Linyong;CHAI Benben;LIN Lianhua;ZHANG Jianwu(School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China;Shandong Shifeng(Group)Company Limited,Liaocheng 252800,Shandong,China)
出处
《汽车工程学报》
2017年第6期415-422,共8页
Chinese Journal of Automotive Engineering
基金
山东省科技重大专项(新兴产业)"高速电动乘用车整车技术研发与产业化"(2015ZDXX0601C01)
关键词
两挡机械式自动变速器
模块化设计
端电压硬件检测法
换挡策略
台架试验
2-speed automated mechanical transmission
block-based design
theory of terminal voltage detection with hardware circuit
gear-shifting strategy
bench test
