Patent · US Active

Fuel injection systems

US10557432B2 · kind B2 · utility

0Cited by

0References

4Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Vincent Dian · Ingolstadt, DE
Matthias Scheid · Regensburg, DE

Key dates

Filing date	Feb 22, 2017
Grant date	Feb 11, 2020
Priority date	—
Expiry date	Feb 22, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/2055
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Various embodiments include a method for operating an internal combustion engine with a fuel injection system including a piezo actuator comprising: stopping the discharge phase of the actuator during an injection cycle; measuring a voltage profile at the actuator; comparing a feedback signal at the actuator with a setpoint value; varying the discharge time of the actuator in successive injection cycles until the feedback signal corresponds to the setpoint value; defining a servo valve closing time as a defined offset with respect to the optimized discharge time; and using the defined servo valve closing time to set an injection quantity of fuel for future injection cycles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.