The invention discloses a diesel engine range extender oil shortage judgment and protection control method which comprises the following steps: step 1, when a range extender is under a power generation working condition, an RCU detects that an engine ECU reports a fuel metering valve control failure fault and a rail pressure deviation fault, and the RCU detects an output power error fault of the range extender; 2, under the starting working condition of the range extender, the RCU detects that an engine ECU reports a fuel oil metering valve control failure fault and a rail pressure deviation fault, and the RCU detects an abnormal shutdown fault of the range extender; and thirdly, oil shortage protection action is conducted, when the first step or the second step is met, the fuel oil shortage state is fed back, shutdown is executed, and the range extender is not allowed to be restarted. According to the invention, self-judgment and self-protection of the range extender system of the diesel engine in the absence of fuel can be realized.
本发明公开了一种柴油机增程器缺油判断及保护控制方法,包括步骤一,增程器在发电工况下,RCU检测到发动机ECU报出燃油计量阀控制失败故障以及轨压偏差故障且RCU检测出增程器输出功率错误故障;步骤二,增程器在启动工况下,RCU检测到发动机ECU报出燃油计量阀控制失败故障以及轨压偏差故障且RCU检测出增程器异常停机故障;步骤三,缺油保护动作:当满足上述的步骤一或步骤二,则反馈缺少燃油状态,并执行停机,不允许再启动增程器。本发明可实现柴油机增程器系统在缺少燃油进行系统自我判断及自我保护。
Diesel engine range extender oil shortage judgment and protection control method
一种柴油机增程器缺油判断及保护控制方法
14.03.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
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