SEATBELT RETRACTOR UNIT AND VEHICLE HAVING A SEATBELT RETRACTOR UNIT OF THIS TYPE

The invention relates to a seatbelt retractor unit, comprising: - a housing (10); - a belt reel (20) rotatably mounted in said housing (10); - a blocking unit for blocking the belt reel against the housing, the blocking unit having an actuator unit (40) with an electromagnet (42); and - a control de...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KUTSCHER, Fooke, RINGS, Philip
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	The invention relates to a seatbelt retractor unit, comprising: - a housing (10); - a belt reel (20) rotatably mounted in said housing (10); - a blocking unit for blocking the belt reel against the housing, the blocking unit having an actuator unit (40) with an electromagnet (42); and - a control device (50) for controlling the electromagnet (42), the control device having a power input (55), a power output (56), which is connected to the electromagnet (42), and at least one signal input (57) for receiving a control signal and/or a sensor unit (52) for producing a control signal; wherein the control device (50) has at least a first active switching state and a passive switching state; wherein, in the first active switching state, an electric current having a greater current intensity than in the passive switching state flows between the power output (56) and the electromagnet (42); wherein the control device (50) has, between the power input and the power output, at least one DC-DC converter (60) acting as a constant current source, so that in the first active switching state the current intensity has a defined first value (I1) independent of the voltage at the power input.