公开(公告)号：US10583794B2

公开(公告)日：2020-03-10

申请号：US15940572

申请日：2018-03-29

Applicant: Autoliv ASP, Inc.

Inventor： Vincent Colarossi ,  Stuart Koch

IPC: B60R21/017 ,  B60R21/01

Abstract: A method and system for diagnosing a fault condition in common connected squib loops is disclosed. A current source supplies current to the feed terminal for the first squib loop and current is returned through the feed terminal for the second squib loop. The voltage is measured between the feed terminal for the first squib loop and the feed terminal for the second squib loop.

公开(公告)号：US20190257872A1

公开(公告)日：2019-08-22

申请号：US15940611

申请日：2018-03-29

Applicant: Autoliv ASP, Inc.

Inventor： Vincent Colarossi ,  Stuart Koch

IPC: G01R31/02 ,  G01R31/00 ,  G06F1/03 ,  B60R21/017

Abstract: A method and system for diagnosing the squib leakage resistance through a restraint control module is disclosed in the present application. The newly proposed system and method provides a highly accurate measurement by minimizing/eliminating the effect of the unknown source voltage effects. The concept utilizes the squib leakage resistance diagnostic resources with a multi-step measurement approach, for example utilizing measurements of two currents and/or two voltages.

公开(公告)号：US20190299894A1

公开(公告)日：2019-10-03

申请号：US15940572

申请日：2018-03-29

Applicant: Autoliv ASP, Inc.

Inventor： Vincent Colarossi ,  Stuart Koch

IPC: B60R21/017

Abstract: A method and system for diagnosing a fault condition in common connected squib loops is disclosed. A current source supplies current to the feed terminal for the first squib loop and current is returned through the feed terminal for the second squib loop. The voltage is measured between the feed terminal for the first squib loop and the feed terminal for the second squib loop.

公开(公告)号：US11125834B2

公开(公告)日：2021-09-21

申请号：US15940611

申请日：2018-03-29

Applicant: Autoliv ASP, Inc.

Inventor： Vincent Colarossi ,  Stuart Koch

IPC: G01R31/00 ,  G01R31/52 ,  B60R21/017 ,  G06F1/03 ,  G01R31/58 ,  G01R31/50

Abstract: A method and system for diagnosing the squib leakage resistance through a restraint control module is disclosed in the present application. The newly proposed system and method provides a highly accurate measurement by minimizing/eliminating the effect of the unknown source voltage effects. The concept utilizes the squib leakage resistance diagnostic resources with a multi-step measurement approach, for example utilizing measurements of two currents and/or two voltages.