Using isa system to decelerate truck upon entering geofenced area

Abstract

A method of decelerating a vehicle upon entering a halt zone includes determining a location of a vehicle at routine intervals while the vehicle is traveling along a road; determining when the vehicle enters a halt zone; and upon determining that the vehicle has entered a halt zone, limiting a speed of the vehicle to a nominal speed. The method preferably is performed by an intelligent speed adaptor (ISA) system of a vehicle. The vehicle preferably is part of a fleet of commercial vehicles, and a fleet manager preferably is notified when a vehicle has entered a halt zone.

1 - 24 . (canceled) 
     
     
         25 . A method, performed by an intelligent speed adaptor (ISA) system of a vehicle, of decelerating the vehicle upon entering a halt zone, comprising determining a location of a vehicle at routine intervals while the vehicle is traveling along a road, determining when the vehicle enters a halt zone, and upon determining that the vehicle has entered a halt zone, limiting a speed of the vehicle to a nominal speed, wherein the halt zone comprises a geofenced area defined by GPS coordinates, wherein the location of the vehicle is determined based on GPS coordinates of the vehicle, and wherein the vehicle is determined to enter a halt zone when the GPS coordinates of the vehicle are within the geofenced area. 
     
     
         26 - 27 . (canceled) 
     
     
         28 . The method of  claim 25 , wherein the method is performed for a plurality of different halt zones. 
     
     
         29 . The method of  claim 25 , wherein a halt zone comprises an area of a road leading up to an overpass which the vehicle is unable to traverse, whereby damage or injury from a collision of the vehicle with the overpass may be prevented. 
     
     
         30 . The method of  claim 25 , wherein a halt zone comprises an area of a road leading up to a tunnel such that the ISA system will cause the vehicle to halt upon entering the halt zone prior to reaching an entrance of the tunnel. 
     
     
         31 . The method of  claim 25 , wherein the halt zone comprises an area comprising a vehicular path located adjacent a government building. 
     
     
         32 . The method of  claim 25 , wherein the halt zone comprises an area of an airport. 
     
     
         33 . The method of  claim 25 , wherein the halt zone comprises an area of a military base. 
     
     
         34 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by disengaging the accelerator of the vehicle. 
     
     
         35 . The method of  claim 25 , wherein the nominal speed is 1 kilometer per hour. 
     
     
         36 . The method of  claim 25 , wherein the nominal speed is 1 mile per hour. 
     
     
         37 . The method of  claim 25 , wherein the nominal speed is 5 miles per hour or less. 
     
     
         38 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by preventing signals indicating an acceleration from being sent to a main control module comprising an engine control unit of the vehicle. 
     
     
         39 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by preventing signals sent in response to depression of an acceleration pedal from being received by an engine control unit of the vehicle. 
     
     
         40 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by modifying signals that are sent in response to depression of an acceleration pedal to an engine control unit of the vehicle. 
     
     
         41 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by preventing signals sent by a throttle position sensor from being received by an engine control unit of the vehicle. 
     
     
         42 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by modifying signals sent by a throttle position sensor to an engine control unit of the vehicle. 
     
     
         43 . The method of  claim 25 , wherein the ISA limits the speed of the vehicle to a nominal speed by signaling an engine control module of the vehicle that the accelerator is not depressed. 
     
     
         44 . The method of  claim 25 , further comprising actuating brakes of the vehicle for active braking of the vehicle after entering the halt zone. 
     
     
         45 . The method of  claim 25 , further comprising sending a notification that the vehicle has entered the halt zone upon determining that the vehicle has entered the halt zone. 
     
     
         46 . The method of  claim 45 , wherein the notification comprises a text message or an email. 
     
     
         47 - 51 . (canceled)