| 摘要 |
PCT No. PCT/US88/01183 Sec. 371 Date Apr. 19, 1988 Sec. 102(e) Date Apr. 19, 1988 PCT Filed Apr. 19, 1988 PCT Pub. No. WO88/08381 PCT Pub. Date Nov. 3, 1988.A system and method for preventing unauthorized starting of a motor vehicle. A timing interval of preselected duration is generated only upon detecting positioning of an ignition switch to a first position by means of a proper key inserted into the vehicle ignition switch. An electrical indication is generated when the ignition switch is positioned to a second position which, in one embodiment, corresponds to a start position of an automobile ignition switch. A starting circuit interrupt element remains in or is urged into a normally closed state to electrically complete the starting circuit only when the electrical indication appears during the time interval. The starting circuit may thereby only be energized for starting the motor during a normal preselected starting sequence comprised of key insertion followed by positioning of the switch from the first to the second state within the preselected time interval. |
