柴油机油量计量单元之触发电流解析  

Analysis on the Trigger Current of Diesel Engine Fuel Metering Unit

作　　者：丁行海 

机构地区：[1]不详

出　　处：《商用汽车》2022年第8期80-81,共2页Commercial Vehicle

摘　　要：在维修共轨柴油机油路故障时,经常要查看油量计量单元的触发电流。本文将以案例为基础,解析油量计量单元触发电流分析思路。一辆豪沃重卡,配备潍柴发动机,搭载博世EDC17CV44系统,司机反映动力严重不足。读取故障码,均为油路历史故障,读取数据流,轨压正常,进气压力正常,扭矩限制为0(正常),计量单元的电流偏低,只有1300多mA。Based on the case,this paper interprets how to analyze the trigger current of the fuel metering unit.The fuel metering unit is essentially a proportional solenoid valve,whose opening is controlled by the electric control unit,thereby controlling the amount of fuel entering the high-pressure fuel pump and the fuel pressure of the common railfuel pipe.

关 键 词：进气压力 油路故障 共轨柴油机 故障码 计量单元 轨压 分析思路 

分 类 号：TK4[动力工程及工程热物理—动力机械及工程]