Patent · US Active

Method for operating an output stage for at least one piezoactuator

US8952597B2 · kind B2 · utility

0Cited by

4References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Stefan Fuchs · Niedernberg, DE
Marco Graf · Tamm, DE

Key dates

Filing date	Jan 5, 2010
Grant date	Feb 10, 2015
Priority date	—
Expiry date	Jul 9, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/2096
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating an output stage for a piezoactuator includes checking, during an operating phase, in response to the undershooting of a current for the piezoactuator below a setpoint current, whether a point in time for the undershooting lies outside or within a time window. A subsequent current pulse is controlled via the setpoint current if the point in time is located outside the time window, and the subsequent current pulse is controlled via a turn-on time if the point in time is located within the time window.

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