Patent · US Active

Bistable solenoid valve device and method for determining an armature position of a bistable solenoid valve

US10699835B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

WABCO Europe BVBA · BE

Inventors

Andreas Goers · Pattensen, DE
Otmar Struwe · Hannover, DE
Andreas Teichmann · Altwarmbüchen, DE

Key dates

Filing date	Feb 2, 2017
Grant date	Jun 30, 2020
Priority date	—
Expiry date	May 30, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2007/185
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A bistable solenoid valve device for a fluid system includes a bistable solenoid valve and a detection device. The bistable solenoid valve has a permanent magnet yoke, an armature configured to be displaced between a first armature position for contact against a first core to form an air gap with a second core and a second armature position for contact against the second core to form an air gap with the first core. The bistable solenoid valve device further includes a detection device configured to evaluate and/or measure a first inductance of the first armature coil, and evaluate and/or measure a second inductance of the second armature coil without displacement of the armature, to compare the inductance of the first armature coil and the inductance of the second armature coil, and to output a state signal that indicates the armature position.

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