标致408的多路传输系统故障诊断测试与分析

Fault Diagnostic Testing and Analysis of Multiplex Transmission System for Peugeot 408

针对东风标致408多路传输网络故障原因的多样性,分析了多路传输网络的基本结构,提出了多路传输线路终端电阻原理与检测方法,并通过东风标致专用示波器PPM,对CAN高速网数据总线可能发生的数据总线断路、CAN_H与CAN_L数据导线之间短路、CAN数据总线对正或负极短路等故障进行了网络诊断测试和分析,有效地实现了标致多路传输系统故障的甄别。

Aiming at diversity of fauhs for Dongfeng Peugeot 408 multiplex transmission network, this paper analyzes the basic structure of transmission network, presents muhiplex transmission line terminal resistance principle and detection method. CAN high speed data bus which may occur circuit breaker in the data bus, short circuit between CAN H and CAN_L data line, CAN the data bus to the positive or negative electrode short - circuit fault are tested and analyzed by using Dongfeng Peugeot special oscilloscope PPM,. This test is effective in the fault discrimination for Peugeot multiplex transmission systems.