基于拥堵工况辨识的车辆自动变速器换挡控制

Shift Control of Vehicle Automatic Transmission Based on Identifi cation of Congestion Conditions

针对目前拥堵工况下车辆自动变速器需要频繁换挡的问题,以车辆的平均速度、平均节气门开度以及研究时间内制动踏板做动次数等作为本次研究的评价因子,设计基于拥堵工况辨识的车辆自动变速器分层修正控制策略,以缓解拥堵工况状态下频繁换挡的问题,减少车辆换挡执行部件和制动系统的磨损状态。

Aiming at the problem of frequent shifting of vehicle automatic transmissions under current congestion conditions,the average speed of the vehicle,the average throttle opening,and the number of brake pedal actions during the study period are used as the evaluation factors for this study.The design is based on congestion conditions.The hierarchical correction control strategy of vehicle automatic transmission based on condition identifi cation can alleviate the problem of frequent shifting under congested conditions and reduce the wear status of vehicle shifting executive components and braking system.