一种混合动力客车后处理系统的电气架构及故障诊断

Electrical Architecture and Fault Diagnosis of SCR System on A Hybrid Bus

介绍一种混合动力客车所使用的后处理系统,论述该系统的控制原理、故障代码管理、故障灯点亮规则、后处理系统的故障处理机制等。对其他客车后处理系统设计者有借鉴意义。

As China is developing towards the low-carbon economy, hybrid buses meeting the N Ⅳ standard become popular in the country. The author introduces the selective catalytic reduction （SCR） system for hybrid bus, discusses its control principle, fault code management, fault light regulation and fault treatment mechanism, thus presents references for other SCR system designers.