Patent · US Expired

Method for controlling a piezoelectric actuator which is used to displace an element

US6885131B2 · kind B2 · utility

2Cited by

4References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rainer Hirn · Regensburg, DE
Arno Friedrich · Regensburg, DE
Uwe Jung · Hungersacker, DE

Key dates

Filing date	May 2, 2002
Grant date	Apr 26, 2005
Priority date	—
Expiry date	May 2, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/21
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to the return stroke between an actuator and an element. In order to displace the element the actuator (A) is impinged upon by a control voltage (ANS). The control voltage (ANS) is selected in such a manner that it is dependent on the size of return stroke in order to compensate the alteration in the return stroke.

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