Controller for a seatbelt positioning device and seatbelt positioning device

US9559618B2 · kind B2 · utility

Assignee

• TRW AUTOMOTIVE GMBH · DE

Inventors

• Martin Prokscha · Schwäbisch Gmünd, DE
• Wolfgang Holbein · Alfdorf, DE

Key dates

• Filing date: Feb 14, 2012
• Grant date: Jan 31, 2017
• Expiry date: Feb 14, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/4816
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control (18) for a seat belt positioning device (10) includes a motor (12) for positioning a seat belt component (16). A locking tongue sensor (20) generates a locking tongue signal (S) depending on whether a locking tongue is inserted in a belt buckle (16). A trigger circuit (22) connected to the locking tongue sensor (20) generates a trigger signal (TR, TR1, TR2, VT, TM) in response to the locking tongue signal (S) A timer (32) or a motor load circuit (33) connected to the trigger circuit (22) generates a motor signal (M) having a predetermined period or depending on a motor load in response to the trigger signal (TR, TR1, TR2, VT, TM). A motor control circuit (34) connected to the timer (32) and the trigger circuit (22) turns the motor on and off in response to the motor signal (M). The direction of motion of the motor (12) is selected depending on the trigger signal (TR, TR1, TR2, VT, TM).