Vehicle security system

Abstract

Abstract A security system for use in a motor vehicle and particularly one carrying valuable cargo operates to permit normal operation of the vehicle over a predetermined time interval when a proper code has been entered into a code logic means of the system, and subsequently inhibits normal operation of the vehicle such as by locking the brakes of the vehicle after the termination of the predetermined time interval unless a second proper code, preferably different from the previously entered code, has been entered into the code logic means of the system. In a preferred embodiment of the invention the system includes a master timer defining a first time interval the length of which may be dependent upon a portion of the entered code, a warning timer responsive to the termination of the first time interval and defining a second time interval, preferably shorter than the first time interval, and an emergency timer responsive to the termination of the second time interval and operation of an emergency switch for enabling continued operation of the vehicle for a third time interval comparable to the second time interval. The system may also include an electromechanical lock located inside the cargo compartment and second code logic means responsive to entry of a second proper code for opening the lock.

Inventors

• 👤 A Cort

Bibliographic Details