FIELD: internal combustion engines.
SUBSTANCE: invention can be used in the internal combustion engines fuel supply systems. Disclosed are methods and systems for operation of fuel system, comprising two booster pumps. For example, the method may include controlling operation of the first booster pump to achieve the required pressure of the fuel rail. Proposed method may include actuation of second booster pump to achieve required pressure of fuel stage when operation of first booster pump is not sufficient to achieve required fuel rail pressure.
EFFECT: invention allows more accurate maintenance of required pressure in fuel circuit, simplified control system of fuel feed pumps and reduced power consumption.
18 cl, 6 dwg
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