High-pressure pump in a high-pressure injection system of a vehicle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11346331
APP PUB NO 20210285410A1
SERIAL NO

16336541

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Various embodiments include methods for operating a high-pressure pump comprising: driving a piston arranged in a compression chamber with a motor shaft; during movement of the piston toward the top dead center, closing the inlet valve so the fluid is then delivered by the piston through an outlet valve; applying a coil current to an electromagnet used to close the inlet valve during and/or after overshooting the top dead center; detecting a start time at which the coil current, on account of starting of an opening movement of the inlet valve, fulfills a predetermined change criterion; labelling a dead center rotation position of the motor shaft at which the piston is at the top dead center based at least in part on the ascertained start time; and adjusting operation of the pump based on the identified dead center rotation position.

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Patent Owner(s)

  • VITESCO TECHNOLOGIES GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chia, Tet Kong Brian Regensburg, DE 13 20
Kogan, Dmitriy Roding, DE 6 5

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