When an internal combustion engine (2) mounted in a vehicle is temporarily stopped for a time greater than or equal to a predetermined time while the vehicle is being driven, and the outside air temperature is less than or equal to a predetermined temperature. It is determined that freezing has occurred in either an inlet-side pressure introduction pipe (10) or an outlet-side pressure introduction pipe (11), which is a path through which pressure is introduced into a differential pressure sensor (8) that detects pressure loss in a GPF (5) provided in an exhaust passage (3) of an internal combustion engine (2). As a result, it is possible to accurately determine that the output signal of the differential pressure sensor (8) does not output an accurate value due to freezing during vehicle driving.
在搭载于车辆的内燃机(2)在该车辆的驾驶中以大于或等于规定时间的时间暂时停止且外部气温小于或等于规定温度的情况下,判定为在对设置于内燃机(2)的排气通路(3)的GPF(5)的压力损失进行检测的压差传感器(8)、作为将压力导入压差传感器(8)的路径的入口侧压力导入管(10)或者出口侧压力导入管(11)的任一者产生冰冻。由此,在车辆驾驶中,能够高精度地判定因冰冻而压差传感器(8)的输出信号未输出准确值的情况。
Exhaust system state determination method and exhaust system state determination device
排气系统的状态判定方法以及排气系统的状态判定装置
2025-02-14
Patent
Electronic Resource
Chinese
IPC: | F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / 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 |
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