插电式混合动力汽车预测控制策略的研究

针对插电式混合动力汽车(PHEV)传统控制策略没有考虑未来车速的问题,通过对汽车未来行驶车速进行预测,在整车行驶模式下提出了一种把汽车未来车速信息考虑进当前的控制策略,从而实现了对发动机和电机转矩的合理分配。通过把新开发的基于车速信息的预测控制策略嵌入到ADVISOR中,在欧洲城市循环工况(NEDC)下进行了仿真分析。仿真结果表明:对汽车未来行驶车速进行预测的控制策略能够实现对发动机和电机转矩的进行合理分配,百公里油耗约为6.5L,相比基于规则控制策略燃油经济性提高了约7.14%,而且排放也有所降低,从而验证了基于预测信息的控制策略的有效性。

A research on the predictive control strategy of a plug-in hybrid electric car

Aiming at the problem of no considering the future vehicle speed for plug-in hybrid (PHEV) traditional control strategy,by predicting the future speed,a predictive future speed control strategy was proposed under the vehicle travel mode,and a reasonable distribution of the engine and the motor torque was achieved.By embedding the development of new predictive control strategy in ADVISOR,and the simulations were conducted under the NEDC.The results show that:the future of the automobile with the speed control strategy can be predicted on the engine and the motor torque rational allocation,about hundred kilometers 6.5L,fuel economy is improved by about 7.14％,but emissions is also reduced,so verify based prediction information control policy effectiveness.