Variable level seatbelt energy management device

Details Variable level seatbelt energy management device Variable level seatbelt energy management device

1998-11-18

2000-02-01

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

280807, B60R 2228

Patent

active

060193921

ABSTRACT:
A seatbelt energy management device which includes a resistance mechanism coupled to a seatbelt apparatus having a magnetorheological fluid, a permanent magnet having a first magnetic field which orients the magnetorheological fluid to increase the magnetorheological fluid's viscosity, an electromagnet which generates a second magnetic field to cancel the first magnetic field of the permanent magnet to decrease the magnetorheological fluid's viscosity, where the resistance mechanism is controlled by the magnetorheological fluid's viscosity.

REFERENCES:
patent: 5012740 (1991-05-01), Hardt
patent: 5354488 (1994-10-01), Shtarkman et al.
patent: 5452957 (1995-09-01), Duggan
patent: 5679280 (1997-10-01), Sasaki et al.
patent: 5718451 (1998-02-01), White
patent: 5730531 (1998-03-01), Pinkos et al.
patent: 5749807 (1998-05-01), Webb
patent: 5765774 (1998-06-01), Maekawa et al.
patent: 5810696 (1998-09-01), Webb
patent: 5823570 (1998-10-01), Lane, Jr. et al.

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