首页|基于动力系统协调控制的AMT换挡品质研究

基于动力系统协调控制的AMT换挡品质研究

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配备AMT机械式自动变速器的车辆在换挡时变速器的速比会突然发生变化,致使发动机输出轴和变速器输出轴之间产生转速差、车辆出现冲击、离合器产生过度磨损等情况.基于此,提出了换挡过程中精确控制发动机转速和转矩的反馈控制、时间最优控制和PID控制相结合的协调控制算法,以及利用电机的辅助作用,快速补充换挡过程中的动力中断,提高了换挡品质.建立综合考虑发动机、电动机、离合器和电子节气门相互协调控制的换挡控制策略.通过仿真试验,表明该控制策略能有效地提高换挡品质.
A Research on AMT Shifting Quality Based on the Dynamic System Coordinated Control
Vehicles equipped with AMT mechanical automatic transmissions will experience sudden changes in the speed ratio of the transmission during gear shifting,resulting in a speed difference be-tween the engine output shaft and the transmission output shaft,vehicle impact,and excessive clutch wear.A control algorithm was proposed to accurately control the engine speed and torque during the shifting process,which combines feedback control,time optimal control,and PID control.The coordinat-ed control algorithm also utilizes the auxiliary function of the motor to quickly supplement the power interruption during the shifting process and improve the shifting quality.A shift control strategy has been established that comprehensively considers the coordinated control of the engine,electric motor,clutch,and electronic throttle.Simulation experiments have shown that this control strategy can effective-ly improve shift quality.

automated mechanical transmissionsengine controldynamic system coordinated con-trolshifting quality

姜建满、崔玉顺、陈颖

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安徽职业技术学院 汽车工程学院,安徽 合肥 230000

安徽江淮汽车集团股份有限公司 轻型商用车制造公司,安徽 合肥 230000

机械式自动变速器 发动机控制 动力系统协调控制 换挡品质

安徽省高校自然科学研究项目安徽省高校自然科学研究项目安徽省高校自然科学研究项目安徽省高校自然科学研究项目安徽职业技术学院校级科研创新团队项目安徽省职业与成人教育学会项目

2022AH0402782023AH0401952023AH0514552023AH0514532023xjtd2AZCJ2023059

2024

黄山学院学报
黄山学院

黄山学院学报

CHSSCD
影响因子:0.249
ISSN:1672-447X
年,卷(期):2024.26(3)
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