柴油串联式混合动力控制系统的试验研究  

Experimental investigation of the control system of a diesel-hybrid powertrain

作　　者：曹桂军[1] 欧阳明高[1] 

机构地区：[1]清华大学汽车工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2009年第11期1843-1847,1851,共6页Journal of Tsinghua University(Science and Technology)

摘　　要：以能量管理和辅助动力单元(APU)控制为核心的动力控制系统,决定了柴油串联式混合动力客车的燃油经济性和排放性能。该文通过建立的一套串联式混合动力系统测试平台,以中国客车城区道路循环工况为基准,测试动力系统油耗、发动机排放和蓄电池荷电状态(SOC),以评价能量管理和APU控制性能。结果表明:APU采用前馈+反馈控制,能够完成定转速控制和变转速控制;同时基于模糊规则的能量管理策略在APU变转速控制,SOC为40%时,使得该混合动力系统的经济性比原型车(38L/100km)提高20%;采用定转速的APU控制与采用变转速的APU控制相比,油耗增加5.7%,烟度值降低42%,NOx增加4%。The energy management strategy and the auxiliary power unit （APU） control strategy determine the fuel economy and emissions of diesel-hybrid electric city buses. The performance of the energy management and APU control system was evaluated on a test bed for the hybrid electric power train that recorded engine fuel consumption, engine emissions and battery SOC during a typical city bus driving cycle in China. The results show that the APU feed forward and feedback control system can provide both constant speed and variable speed control. For a battery SOC of 40%, the fuzzy based energy management strategy and variable speed APU control reduces the fuel consumption by 20% compared with the original city bus whose fuel economy was 38 L/100 km. The constant speed APU control reduces the PM by 42% compared with the variable speed APU control but the fuel consumption increases by 5.7 % and the NOx increases by 4 %.

关 键 词：混合动力汽车 能量管理 经济性 排放 

分 类 号：U463.2[机械工程—车辆工程]