电动公交汽车机械自动变速（AMT）过程控制

摘要

The driving system layout of 3-gear electric buses was analyzed .The mechanism of the auto-mated manual transmission ( AMT) was developed and the transmission control unit ( TCU ) was built . By modeling and simulating of the main driving motor , the shift control strategies for the main driving mo-tor were established;The shift process data in the AMT system during the road test were collected via the data-saving system , and analyzed statistically afterwards .The data show that the statistical average shift time is 1.86s and the jerk values are between ±35 m/s3 , which conforms to relating jerk standards .Test results validate the feasibility of the AMT system .%进行了三挡电动公交汽车驱动系统构成分析，完成机械自动变速（ Automated Manual Transmission ，AMT）选换挡机构开发及变速控制单元（ Transmission Control Unit ，TCU）搭建；对电动公交汽车主驱动电机进行建模与仿真，研究主驱动电机在换挡过程中的控制策略；在建立的机械自动变速AMT系统中，通过数据采集系统，对整车道路测试数据进行采集．整车道路测试数据经统计分析表明，所开发的三挡机械自动变速系统平均换挡时间为1.86 s，换挡冲击度值介于±35 m/s之间，符合乘用舒适度要求，验证了所开发系统选换过程挡控制的可行性．