Electronic seat belt tensioning system

Details Electronic seat belt tensioning system Electronic seat belt tensioning system

1995-03-30

1996-09-24

Boehler, Anne Marie

Land vehicles

Wheeled

Attachment

280807, 2423901, 2423908, 242374, 3404571, 340668, B60R 2244, B60R 2246, B60R 2248

Patent

active

055583709

ABSTRACT:
A method and system (10) for controlling the tensioning of a vehicle seat belt utilizes a control processor (20) and a motor (12) to provide initial tensioning of the seat belt. After initial tensioning, the control processor (20) removes substantially all tension on the seat belt while continuously monitoring seat belt pay out via an encoder (18). The system provides out-of-position warnings, and is responsive to vehicle acceleration information from a crash discrimination system (22) and/or an object detecting radar system (26) to control tensioning of the seat belt. The system further provides for earlier seat belt tensioning activation by utilizing a pyrotechnic pretensioner (32) having a replaceable pyrotechnic cartridge (38).

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patent: 5186063 (1993-02-01), Nishizawa
patent: 5397075 (1995-03-01), Behr

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