公开(公告)号：US20190092277A1

公开(公告)日：2019-03-28

申请号：US16072719

申请日：2017-01-16

Applicant: AUTOLIV DEVELOPMENT AB

Inventor： Saravana Shanmugam ,  Abhijeet Atwadkar ,  Vijay Shetty ,  Thouseef Aqeeb ,  Andreas Lucht ,  Geert Helge Wittenberg ,  Carstensen Holger ,  Patrick Süllau ,  Günter Clute

IPC: B60R22/48 ,  H02K11/215 ,  H02K7/14 ,  B60R22/44 ,  B60R22/46

Abstract: A control method for an electric seatbelt retractor and an electric seatbelt retractor including a spindle (2) and a seatbelt (3) wound thereon, and an electric motor (4) driving the spindle (2) via a rotor (3) in pull-in or in pull-out direction when activated, and a sensor device (10) detecting the movement of the spindle (2), wherein a spring (11) is provided, which is arranged between the spindle (2) and the rotor (3) enabling a relative movement of the spindle (2) to the rotor (3) or to a retractor-fixed part, wherein the electric motor (4) is controlled by a signal of the sensor device (10) generated by the relative movement of the spindle (2) to the rotor (3) or a retractor-fixed part with torsional tensioning or expanding the spring (11).

公开(公告)号：US10882490B2

公开(公告)日：2021-01-05

申请号：US16072719

申请日：2017-01-16

Applicant: AUTOLIV DEVELOPMENT AB

Inventor： Saravana Shanmugam ,  Abhijeet Atwadkar ,  Vijay Shetty ,  Thouseef Aqeeb ,  Andreas Lucht ,  Geert Helge Wittenberg ,  Carstensen Holger ,  Patrick Süllau ,  Günter Clute

IPC: B60R22/46 ,  B60R22/48 ,  B60R22/44 ,  H02K11/215 ,  H02K7/14

Abstract: A control method for an electric seatbelt retractor and an electric seatbelt retractor including a spindle (2) and a seatbelt (3) wound thereon, and an electric motor (4) driving the spindle (2) via a rotor (3) in pull-in or in pull-out direction when activated, and a sensor device (10) detecting the movement of the spindle (2), wherein a spring (11) is provided, which is arranged between the spindle (2) and the rotor (3) enabling a relative movement of the spindle (2) to the rotor (3) or to a retractor-fixed part, wherein the electric motor (4) is controlled by a signal of the sensor device (10) generated by the relative movement of the spindle (2) to the rotor (3) or a retractor-fixed part with torsional tensioning or expanding the spring (11).