## 4 Evaluation
### Lab Testing Results
#### 4.2.3 Results  
In this section, we provide the test results against two independent reference chargers.  
Against the reference charger with high-level stack and IEC 61850, we ran tests for PnC DC charging scenarios. The EV charger passed all of the test cases, including negative tests (see Table 2). The test system could properly take the role of EV and the operator simultaneously. We manually examined all of the communication between the EV and the EVSE and the EVSE and the operator, checked the timings of message deliveries and concluded that the test system properly tested the target EV charger.  
Against the reference charger with the full ISO/IEC 15118 stack, we ran tests for EIM DC charging scenarios. The EV charger passed all of the test cases, including negative tests (see Table 3). The test system could perform the test cases for high-level communication and basic signaling simultaneously.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**No.** & **Test case** & B & **Target** & **Protocol** & **Verdict** \\ \hline
1 & 15118-TC1 & SECC Discovery Protocol (SDP) & EVCC & IEC/ISO15118 & Pass \\
2 & 15118-TC2 & Supported Application Protocol & EVCC & IEC/ISO15118 & Pass \\
3 & 15118-TC3 & Session Setup Message & EVCC & IEC/ISO15118 & Pass \\
4 & 15118-TC4 & Service Discovery & EVCC & IEC/ISO15118 & Pass \\
5 & 15118-TC5 & Payment Service Selection & EVCC & IEC/ISO15118 & Pass \\
6 & 15118-TC6 & Payment Details & EVCC & IEC/ISO15118 & Pass \\
7 & 15118-TC7 & Authorization & EVCC & IEC/ISO15118 & Pass \\
8 & 15118-TC8 & Charge parameter Discovery & EVCC & IEC/ISO15118 & Pass \\
9 & 15118-TC9 & Cable Check & EVCC & IEC/ISO15118 & Pass \\
10 & 15118-TC10 & PreCharge & EVCC & IEC/ISO15118 & Pass \\
11 & 15118-TC11 & Power Delivery (Start) & EVCC & IEC/ISO15118 & Pass \\
12 & 15118-TC12 & Current Demand & EVCC & IEC/ISO15118 & Pass \\
13 & 15118-TC13 & Power Delivery (Stop) & EVCC & IEC/ISO15118 & Pass \\
14 & 15118-TC14 & Welding Detection & EVCC & IEC/ISO15118 & Pass \\
15 & 15118-TC15 & Session Stop & EVCC & IEC/ISO15118 & Pass \\
16 & 15118-NTC1 & Power Delivery (Negative) & EVCC & IEC/ISO15118 & Pass \\
17 & 61850-TC1 & Connection Check & EVCC & IEC 61850 & Pass \\
18 & 61850-TC2 & TCP/IP Connection Report & EVCC & IEC 61850 & Pass \\
19 & 61850-TC3 & Session Setup Check & EVCC & IEC 61850 & Pass \\
20 & 61850-TC4 & Charge Parameter Discovery Report & EVCC & IEC 61850 & Pass \\
21 & 61850-TC5 & PreCharge Report & EVCC & IEC 61850 & Pass \\
22 & 61850-TC6 & Current Demand Report & EVCC & IEC 61850 & Pass \\
23 & 61850-TC7 & Welding Detection Report & EVCC & IEC 61850 & Pass \\ \hline \hline \end{tabular}
\end{table}
Table 2: Test result of the reference charger with high-level stack and IEC 61850. EVCC, EV Communication Controller.  
We demonstrated out-of-range control pilot values and confirmed that the test system monitored the current condition in a timely manner. The SLAC test was also performed correctly. We manually examined all of the communication between EV and EVSE, checked the timings of message deliveries and concluded that the test system properly tested the target EV charger.