Patent · US Active

Circuit arrangement for controlling seat comfort systems, seat, and method for controlling a seat comfort system

US12124239B2 · kind B2 · utility

0Cited by

7References

13Claims

0Family size

Assignee

ALFMEIER PRÄZISION SE · DE

Inventors

Erich Dörfler · Treuchtlingen, DE
Helmut Auernhammer · Laufenburg (Baden), DE
Matthias Mitzler · Graben, DE
Maximilian Link · Karlsruhe, DE
Manfred Lehner · Pasching, AT

Key dates

Filing date	May 25, 2021
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Jan 9, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/45022
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A circuit arrangement for controlling a system for a seat comfort function includes at least one actuator with at least one adjusting element and at least one SMA element, wherein the adjusting element can be moved from a first position to a second position. At least one resistance measuring device measures a resistance of the at least one SMA element. At least one driver unit activates the actuator with the at least one SMA element. A control unit controls the driver unit, the driver unit being configured for processing an output signal of the resistance measuring device. The circuit arrangement is configured so that the resistance measuring device and the driver unit are alternatingly operationally connected to the SMA element. Related methods of operation and seats are disclosed.

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