Patent ID: 7873455

Claim:
An access control system for a work vehicle, the work vehicle having an engine and a location, the system comprising: a location sensor on the vehicle configured to provide a location signal indicative of the vehicle's location; and an electronic control unit coupled to the location sensor to receive the location signal, the control unit further comprising an electronic memory configured to store boundaries of at least one job site, and further wherein the control unit is configured to shut down the vehicle engine when it leaves the boundaries and the control unit is configured to permit the vehicle engine to be restarted only after a predetermined interval of time has expired after the control unit shut down the vehicle engine for leaving the boundaries as indicated by the location sensor; wherein the electronic control unit is configured to permit the engine to be restarted a predetermined plurality of times after being shut down for leaving the boundaries, the electronic control unit configured to prevent additional engine restarts after permitting the engine to be restarted the predetermined plurality of times while the vehicle is outside the boundaries as indicated by the location sensor; wherein the electronic control unit is configured to have a restart delay time period between at least a first and second permitted engine restart while the vehicle is outside the boundaries preventing the engine from restarting for the second permitted engine restart until a predetermined period of time has elapsed after the engine has been shut down following the first permitted restart while the vehicle is outside the boundaries as indicated by the location sensor.