초록 ▼

Method for operating a fuel supply system of an internal combustion engine, especially of a motor vehicle, wherein fuel is pumped into a storage space (17) with the aid of a pump (12, 16) and a pressure is generated in the storage space (17). In the system, an actual value of the pressure is measure

Method for operating a fuel supply system of an internal combustion engine, especially of a motor vehicle, wherein fuel is pumped into a storage space (17) with the aid of a pump (12, 16) and a pressure is generated in the storage space (17). In the system, an actual value of the pressure is measured with the aid of a pressure sensor (21) and the pressure in the storage space (17) is controlled (open loop and/or closed loop) to a desired value. A fault in the fuel supply system (10) is detected via a plausibility control. When a fault in the fuel supply system (10) is detected, a diagnostic cycle of the internal combustion engine is initiated. Diagnostic functions are activated which check individual components (18, 19, 21) of the fuel supply system (10) as to operability.

대표청구항 ▼

1. A method for operating a fuel supply system of an internal combustion engine including an engine of a motor vehicle, the method comprising the steps of:pumping fuel into a storage space with the aid of a pump and generating a pressure in the storage space; measuring an actual value of the pressur

1. A method for operating a fuel supply system of an internal combustion engine including an engine of a motor vehicle, the method comprising the steps of:pumping fuel into a storage space with the aid of a pump and generating a pressure in the storage space; measuring an actual value of the pressure with the aid of a pressure sensor; controlling the pressure in the storage space (open loop and/or closed loop); detecting a fault in the fuel supply system via a plausibility control; initiating a diagnostic cycle of the engine when detecting a fault in the fuel supply system; and, activating diagnostic functions which check the individual components of the fuel supply system as to operability thereby determining the component which causes the fault and displaying the same.