Electric Vehicle Simulator and Analyzer (EVSA) for Electric Vehicle Supply Equipment

Abstract

Embodiments pertain to simulator circuitry, particularly to simulator circuitry configured to simulate an electric vehicle and test an electric vehicle charger. A test unit is configured to simulate a GFI current via modulator and to simulate electric vehicle loads via switched and combined resistor loads. The test unit provides for reprogramming of the electric vehicle charger via a pilot line. The test unit self-confirms its usability via associating received codes.

1 . An electric vehicle simulator and analyzer for electric vehicle supply equipment, the electric vehicle simulator and analyzer comprising:
 a control processing unit comprising a processor and addressable memory; the control processing unit configured to:
 display a result of at least one of: a ground fault interrupt current simulation, and a pilot line feedback simulation. 
   
     
     
         2 . The electric vehicle simulator and analyzer of  claim 1  wherein the control processing unit is further configured to display a result of a electric vehicle load simulation. 
     
     
         3 . The electric vehicle simulator and analyzer of  claim 1  wherein the result of the at least one simulation is configured to indicate at least one of: maximal current draw from the electric vehicle supply equipment, current provided by the electric vehicle supply equipment, loss of pilot, loss of ground, operation of ground fault interrupt circuit in the electric vehicle supply equipment, over voltage level, under voltage level, and incorrect pilot voltage level. 
     
     
         4 . The electric vehicle simulator and analyzer of  claim 1  wherein the control processing unit is further configured to:
 display a result of at least one of: a first alternating current (AC) power line test, a second AC power line test, a pilot line test, a ground line test, and a proximity test. 
 
     
     
         5 . The electric vehicle simulator and analyzer of  claim 4  wherein the result of the at least one test is configured to indicate at least one of: maximal current draw from the electric vehicle supply equipment, current provided by the electric vehicle supply equipment, loss of pilot, loss of ground, operation of ground fault interrupt circuit in the electric vehicle supply equipment, over voltage level, under voltage level, and incorrect pilot voltage level. 
     
     
         6 . The electric vehicle simulator and analyzer of  claim 2  wherein the control processing unit is further configured to simulate the electric vehicle load via a drop in an initial voltage of about 12 volts to at least one of: 9 volts, 6 volts, and 3 volts. 
     
     
         7 . An electric vehicle simulator and analyzer for electric vehicle supply equipment comprising:
 a control processing unit comprising a processor and addressable memory; the control processing unit configured to:
 receive at least one of: a first barcode, a second barcode, and a third barcode; 
 confirm permission upon reception of at least two of: the first barcode, the second barcode, and the third barcode; and 
 if permission is confirmed, allow operation of the electric vehicle simulator and analyzer. 
   
     
     
         8 . The electric vehicle simulator and analyzer of  claim 7  wherein the first barcode is associated with a electric vehicle supply equipment, the second barcode is associated with a work order, and the third barcode is associated with a person requesting to address the work order. 
     
     
         9 . The electric vehicle simulator and analyzer of  claim 7  further comprising an interface configured to receive a barcode associable with a data store. 
     
     
         10 . An electric vehicle simulator and analyzer for electric vehicle supply equipment comprising:
 a control processing unit comprising a processor and addressable memory; the control processing unit configured to:
 control a first switch of a plurality of switches to at least one of: a open position, and a closed position; 
 control a second switch of a plurality of switches to at least one of: an open position, and a closed position; and 
 simulate at least one of: a first electric vehicle load, a second electric vehicle load, and a third electric vehicle load; 
 wherein the first electric vehicle load is simulated via controlling the first switch to the closed position and the second switch to the open position; the second electric vehicle load is simulated via controlling the first switch to the open position and the second switch to the closed position; and the third electric vehicle load is simulated via controlling the first switch to the closed position and the second switch to the closed position.