柴油机SCR系统中OBD模块的开发  

Development of OBD module of SCR system of diesel engine

作　　者：刘军[1] 熊明路[1] 李敏 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]潍柴动力股份有限公司,山东潍坊261000

出　　处：《电子技术应用》2014年第9期14-16,20,共4页Application of Electronic Technique

摘　　要：依据OBD技术标准的要求,制定了OBD诊断策略,并对OBD进行了整体设计,然后通过飞思卡尔MC9S12XET256单片机对OBD模块进行了程序设计,最后建立了CANoe和MATLAB/Simulink的仿真模型,对开发的OBD模块进行了仿真验证,仿真结果验证了制定的OBD诊断策略及程序设计的正确性,并根据仿真结果完善了程序设计。Referencing to the standard requirements of OBD technology, the OBD diagnosis strategy is made, and the program- ming for OBD module is given based on freescale MC9S12XET256. Finally, the simulation models of CANoe and MATLAB/Simulink are established, the emulation is carried on the OBD module. The result verifies the correctness of the diagnosis strategy and the programming. And the programming is improved based on simulation results.

关 键 词：SCR系统 OBD 诊断策略 飞思卡尔单片机 联合仿真 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]