| 摘要 |
A motorized vehicle anti-theft system which is passive by being automatically armed (i.e., does not require a vehicle occupant to set the system). Once power has been turned on to the vehicle, detection of an attempt to start the vehicle motor or the opening of a vehicle door (514) starts a predetermined time cycle (518). If a first reset signal is not received before the end of the time cycle, a vehicle disabling circuit is set (524). After that, a detection of actuation of the vehicle brake (526) will cause the disabling circuit to disable the vehicle (530) and set off an alarm (532). Only proper generation of the first and a second reset signal will allow the vehicle to be enabled again. |
