摘要
以ISG(integrate starter generator)型混合动力CVT(continuously variable transmis-sion)轿车为研究对象,进行发动机制动性能建模与仿真计算,提出基于前轮最大可承受减速度的制动力最优分配策略。无再生制动时,根据发动机制动特性计算,通过调整CVT速比来以充分利用发动机制动;有再生制动时,优先采用电机制动,其次为发动机机制动,最后为摩擦制动。进行基于控制策略的混合动力汽车再生制动建模和典型工况下的仿真分析,仿真结果验证所提出的再生制动控制策略的正确性和可行性。
Focusing on a continuously variable transmission （CVT） hybrid electric vehicle with integrate starter generator（ISG）, modeling and simulating of engine braking was conducted. An optical control strategy of regenerative braking was put forward. When there is no regenerative braking, engine brake force can be used effectively by changing the CVT ratio to reduce the braking force requirements for wheel brakes based on the calculated results of engine braking. When there is regenerative braking, the braking priority sequence is generator braking, engine braking, and finally frictional braking. A forward simulation model for regenerative braking system of hybrid electric vehicle was built. The simulation and analysis under typical driving cycles was conducted. The result shows the control strategy and the models are reasonable and feasible.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第10期1087-1093,共7页
Journal of Chongqing University
基金
国家自然科学基金资助项目(50475067)
国家863计划资助项目(2006AA11A107-1)
