汽车混合动力系统耦合机构仿真设计

Simulation Design of Coupling Mechanism of Automotive Hybrid System

混合动力汽车由两种或多种储能器、能源及转换器为驱动能源,核心部分为动力耦合机构,其性能直观影响到整车性能。文章主要对汽车混合动力系统耦合机构进行了概述,对新型CVT式混合动力系统耦合机构进行了设计,并在Matlab/Simulink环境下建立仿真模型,研究纯电动模式切换至发动机单独驱动模式时的控制策略科学性,验证新型耦合机制的可靠性、合理性,以期借助可靠、稳定的耦合机构来快速、平稳的启动发动机,保证汽车的有效行驶。

Hybrid electric vehicles are driven by two or more energy storages,energy sources and converters,and the core part is the power coupling mechanism,and its performance directly affects the performance of the whole vehicle.This paper mainly summarizes the coupling mechanism of the automotive hybrid system,designs the coupling mechanism of the new CVT hybrid system,and establishes a simulation model in the Matlab/Simulink environment to study the scientific control strategy when switching from pure electric mode to the engine independent drive mode,and verifies the reliability and rationality of the new coupling mechanism,in order to start the engine quickly and smoothly with the help of a reliable and stable coupling mechanism to ensure the effective driving of the car.