METHOD FOR OPERATING OCCUPANT PROTECTION SYSTEM, ELECTRONIC CONTROL UNIT FOR GAS GENERATOR AND OCCUPANT PROTECTION SYSTEM, AND OCCUPANT PROTECTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a method for operating an occupant protection system having a simplified ignition circuit and capable of controlling operation timing at a low cost.;SOLUTION: In this method, an impact detection sensor 121, an electronic control unit 1, at least two igniters, SQ1, SQ2, SQ3 and SQ4, and harnesses are included. An amount of electric energy required for an operation is different in at least two igniters. A pair of harnesses are connected to the electronic control unit 1 in relation to at least two igniters. The pair of harnesses are branched into at least two pairs or more in the midway and are connected to at least two igniters in parallel. By making an amount of electric energy flowing from the electronic control unit 1 to the harnesses different in two or more steps, operation timing of at least two igniters is controlled.;COPYRIGHT: (C)2006,JPO&NCIPI