Autoliv Development Ab

Philip Rings

Andreas Lucht

Antto-Christian Glaesser

Hans-Otto Kock

Patrick Süllau

Hans-Jörg Langhoff

Florian Kunzler

Martin Pawlowski

Heiko Hinrichs

Fooke Kutscher

A belt retractor unit with a housing, a rotatably mounted belt reel, a blocking unit for blocking the belt reel, wherein the blocking unit has an electrically controllable actuator unit, a control apparatus for controlling the actuator unit, which has a sensor apparatus for measuring at least one horizontal acceleration value and a switching apparatus for controlling the actuator unit in dependence on at least the at least one horizontal acceleration value, wherein the belt retractor unit has a first emergency state, in which the magnitude of the horizontal acceleration value is above a first limit value and in which the belt reel is blocked, and an unblocking state in which the magnitude of the horizontal acceleration value is below the first limit value.

Belt retractor unit and vehicle having such a belt retractor unit

A belt retractor having an electrically actuatable locking device comprising a housing with a base plate and an upright first limb, a locking lever mounted pivotably on the upright first limb with a steel plate which is spring-loaded, and an electromagnet arranged in the housing and having a coil with a through opening, a first iron core which is arranged in the through opening, when a voltage is applied to the coil, exerts a magnetic force on the locking lever via the steel plate and actuates the locking lever for triggering a locking or unlocking movement against the force of the spring. The movement of the locking lever is enforced by a first magnetic circuit formed by the first iron core, the upright first limb and the portions of the base plate and of the locking lever between the first iron core and the upright first limb.

Belt retractor having an electrically actuatable locking device

The invention relates to a belt retractor with an electromotive winding aid () comprising a belt shaft () which is pretensioned in the winding-up direction by a spring and is mounted rotatably in a frame () of the belt retractor on which a belt strap () can be wound up. The electromotive winding aid () can be activated as a function of the belt-strap-retraction speed (BRS).

Belt retractor with an electromotive winding aid and method for activating an electromotive winding aid for a belt retractor

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Hamburg, Germany

Philip Rings