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首页> 外文期刊>SAE International Journal of Commercial Vehicles >Coordination Control Strategy for Mode Switching of a Parallel Hybrid Electric System Based on Continuously Variable Transmission
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Coordination Control Strategy for Mode Switching of a Parallel Hybrid Electric System Based on Continuously Variable Transmission

机译:基于连续变速器的并联混合电动系统模式切换的协调控制策略

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摘要

This study aims to solve the problem of impact in a parallel hybrid electric system based on the continuously variable transmission (CVT) during switching from pure electric mode to engine-driven, power-generating mode. Taking into account the torque response characteristics of the engine and motor and the dynamic characteristics of the wet clutch hydraulic control system, the mode switching process is divided into six stages, namely, pure electric mode, wet-clutch free travel, engine start-up, engine speed synchronization, clutch combination, and engine intervention drive. A coordination control strategy is developed based on the model predictive control algorithm to ensure smooth mode switching. The effectiveness of the control algorithm is verified using Matlab/Simulink and the AMESim co-simulation platform. Results show that with the mode switching coordination control strategy, the components of the system work harmoniously. The maximum impact is reduced by 52.0% at the speed synchronization stage and by 84.3% at the clutch coupling stage compared with the uncoordinated control situation.
机译:本研究旨在根据从纯电动模式切换到发动机驱动,发电模式期间基于连续可变变速器(CVT)来解决基于连续可变变速器(CVT)的平行混合动力系统的冲击问题。考虑到发动机和电机的扭矩响应特性以及湿离合器液压控制系统的动态特性,模式切换过程分为六个阶段,即纯电动模式,湿法自由行程,发动机启动,发动机速度同步,离合器组合和发动机干预驱动。基于模型预测控制算法开发了协调控制策略,以确保平滑模式切换。使用MATLAB / SIMULINK和AMESIM共模平台验证控制算法的有效性。结果表明,随着模式切换协调控制策略,系统的组件和谐地工作。与不协调的控制情况相比,在速度同步阶段,在离合器耦合阶段的速度同步阶段的最大冲击减少了52.0%。

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