Locating an electric vehicle at a charging station

Abstract

A method of locating an electric vehicle at a charging station having multiple chargers is includes, receiving at multiple fixed transceivers positioned at different locations in the charging station, signals from the electric vehicle as the electric vehicle moves in the charging station, and determining, at a controller, a current location of the electric vehicle in the charging station using the signals received by the multiple fixed transceivers.

We claim: 
     
         1 . A method of locating an electric vehicle at a charging station having multiple chargers, comprising:
 receiving, at multiple fixed transceivers positioned at different locations in the charging station, signals from the electric vehicle as the electric vehicle moves in the charging station;   determining, at a controller, a current location of the electric vehicle in the charging station using the signals received by the multiple fixed transceivers.   
     
     
         2 . The method of  claim 1 , wherein the receiving includes receiving signals emitted by a mobile transceiver positioned on the electric vehicle. 
     
     
         3 . The method of  claim 2 , wherein the multiple fixed transceivers and the mobile transceiver are ultra-wide band transceivers. 
     
     
         4 . The method of  claim 1 , further including guiding the electric vehicle to a charger of the charging station using the signals received by the multiple fixed transceivers. 
     
     
         5 . The method of  claim 4 , wherein the guiding includes displaying a map that includes the current location of the electric vehicle and a suggested path of the electric vehicle to the charger in a display device of the electric vehicle. 
     
     
         6 . The method of  claim 5 , wherein the guiding includes directing the electric vehicle to the charger using audio and/or visual signals. 
     
     
         7 . The method of  claim 1 , further including determining, at the controller, parameters related to charging the electric vehicle at the charger using the signals received by the multiple fixed transceivers. 
     
     
         8 . The method of  claim 1 , further including activating or deactivating, using the controller, a system in the charging station or the electric vehicle based on the determined location of the electric vehicle in the charging station. 
     
     
         9 . The method of  claim 8 , wherein the activating includes activating high voltage circuits to a charger. 
     
     
         10 . A method of assigning electric vehicles to chargers at a charging station, comprising:
 receiving, at multiple fixed transceivers positioned at different locations in the charging station, signals from each electric vehicle of multiple electric vehicles arriving at the charging station;   determining, at a controller, the current location of each electric vehicle of the multiple electric vehicles based on the signals received from each electric vehicle; and   routing each electric vehicle to a separate charger of multiple chargers in the charging station based at least on the signals received from each electric vehicle.   
     
     
         11 . The method of  claim 10 , further including determining a compatibility of an electric vehicle of the multiple electric vehicle to a charger of the multiple chargers prior to routing the electric vehicle to the charger. 
     
     
         12 . The method of  claim 10 , further including docking an electric vehicle of the multiple electric vehicles to a charger of the multiple chargers after the routing, and directing electric current from the charger to the electric vehicle for charging. 
     
     
         13 . The method of  claim 10 , wherein determining the current location of each electric vehicle incudes determining the current location of each electric vehicle in a real-time manner. 
     
     
         14 . The method of  claim 10 , wherein receiving signals from each electric vehicle includes receiving signals emitted by an ultra-wide band transceiver of the electric vehicle at multiple fixed ultra-wide band transceivers of the charging station. 
     
     
         15 . The method of  claim 10 , wherein routing each electric vehicle to a separate charger includes directing an electric vehicle to a charger using audio and/or visual signals. 
     
     
         16 . The method of  claim 15 , wherein directing the electric vehicle to the charger includes displaying a map that includes the current location of the electric vehicle and a suggested path of the electric vehicle to the charger in a display device on the electric vehicle. 
     
     
         17 . A charging station, comprising:
 multiple chargers configured to charge electric vehicles;   multiple fixed transceivers positioned at different locations in the charging station, wherein each fixed transceiver is configured to receive signals from each electric vehicle of the multiple electric vehicles; and   a charge controller, wherein the charge controller is configured to determine a current location of an electric vehicle of the multiple electric vehicles in the charging station based on the signals received by the multiple fixed transceivers.   
     
     
         18 . The charging station of  claim 17 , wherein the charge controller is further configured to route the electric vehicle to a charger of the multiple chargers based at least on the signals received from the electric vehicle. 
     
     
         19 . The charging station of  claim 18 , wherein routing the electric vehicle to the charger includes displaying a map that includes the current location of the electric vehicle and a suggested path of the electric vehicle to the charger in a display device on the electric vehicle. 
     
     
         20 . The charging station of  claim 17 , wherein the multiple fixed transceivers are ultra-wide band transceivers.