某插电式混合动力公交客车离合器接合控制策略分析  

Analysis of Clutch Engagement Control Strategy of a Plug-in Hybrid Electric Bus

作　　者：杨昭 李天闯 YANG Zhao;LI Tianchuang(Shaanxi Heavy Duty Automobile Company Limited,Xi'an 710200,China)

机构地区：[1]陕西重型汽车有限公司,陕西西安710200

出　　处：《汽车实用技术》2023年第17期119-123,共5页Automobile Applied Technology

摘　　要：在混合动力公交客车中,整车控制系统根据工况频繁切换车辆的驱动方式,而离合器就是驱动方式切换的一个重要部件,其工作品质决定着驱动系统的整体性能。文章通过对离合器的接合过程分析、结构建模,并对离合器接合品质的评价指标研究,建立模糊控制模型对离合器的接合过程进行控制。为实现降油耗目标,提出了在满足汽车行驶所需转矩的前提下,采用纯电动驱动,当电机输出转矩不能满足车辆行驶所需时,由电机输出额外转矩,带动发动机达到一定转速后喷油点火的模糊控制策略。在发动机点火后,使离合器主、从动盘处于滑磨状态,待到主、从动盘转速差较小的时候,快速接合,以达到减小冲击、提高乘坐舒适性。In the hybrid electric bus,the vehicle control system frequently switches the driving mode of the vehicle according to the working conditions,and the clutch is an important component of the drive mode switching,and its working quality determines the overall performance of the drive system.In this paper,a fuzzy control model is established to control the engagement process of clutch by analyzing and modeling the structure of the clutch and studying the evaluation index of the clutch bonding quality.In order to achieve the goal of reducing fuel consumption of hybrid electric vehicles,it is proposed to use pure electric drive on the premise of meeting the torque required for driving the vehicle.When the output torque of the motor cannot meet the driving requirements of the vehicle,the motor outputs additional torque to drive the engine.The control strategy of fuel injection ignition after reaching a certain speed.After the engine is ignited,the main and driven discs of the clutch are in a sliding state,and when the speed difference between the main and driven discs is small,they are quickly engaged to reduce impact and improve ride comfort.

关 键 词：混合动力公交客车 自动离合器 舒适性 模糊控制 

分 类 号：U469.7[机械工程—车辆工程]