基于设定充电曲线的串联式混合动力汽车动力总成的滑模控制

摘要

提出了一种基于设定电池组充电曲线的串联式混合动力汽车动力总成滑模控制策略,动力总成控制系统中设置了两个鲁棒性强的固定边界层滑模控制器,分别控制发动机转速和转矩,使发动机工作点处于效率最优区域;同时设计了适当的电池组充电曲线以利于延长电池组寿命.采用ADVISOR软件的仿真结果,验证了提出策略的有效性和相对传统策略的优越性.%A sliding mode control strategy for the powertrain of a series hybrid electric vehicle (SHEV) is presented with a desired battery charge curve set. Two robust fixed-boundary-layer sliding mode controllers are configured in powertrain control system for controlling engine speed and torque respectively, to make engine operate in optimal efficiency region. Meanwhile a proper battery charging curve is designed to help extend battery life. The results of simulation with software ADVISOR verify the effectiveness of the strategy proposed and its superiority over the conventional one.