🚗⚡ Why EVA Chargers Means Reliability Proven in Practice, Not Just Theory

🚗⚡ Why EVA Chargers Means Reliability Proven in Practice, Not Just Theory

Recently during testing, we came across an interesting situation: a 2023 Porsche - EV Requested 1175V ( EVTargetVoltage ), although according to the protocol in DISCOVERY EVSE response Maximum Voltage 1000V. 

Moreover, in the same DISCOVERY process, EV Maximum Voltage 726V as the upper limit.

For most manufacturers (especially mass-market Chinese brands), such “bugs” are a dead end: charging simply fails after EVSE SECC get overlimit request and send it to Power Delivery Module ( PDM ). 

Basically algorithms trust to EV ( is Master ) and if Power Module not able to rise voltage up to request doring the PreCharge process SECC mark this Power Module ( faild to get EV Request ).

In this case scenario is every next PDM also cant do this Request because PDM Voltage Limit is 1000v.

But at EVA Chargers, we’ve developed an intelligent filtering algorithm for incorrect requests, which verifies true protocol compliance and corrects faulty data and fix it inside SECC ( Charging Controller ).

Any way We love Porsche and we change algorithms:

1) EVSE SECC - Check EVTargetVoltage Request and if Requested wrong number SECC will fi it 

if EVTargetVoltage 1175 > PDM Voltage Limit is 1000v or EV Maximum Voltage 726V

2) EVSE SECC FIX and change EVTargetVoltage Request to ( Maximum Voltage 726V )

3) And EVSE SECC check PDMs to compare eith correct request Voltage 726V 

🔑 The result:

The customer gets a stable, uninterrupted charging experience.

The station doesn’t “burn out” or go into error mode.

Network owners don’t lose clients or revenue.

We already have a database of thousands of such cases, with refined algorithms that allow our stations to remain stable where Chinese analogues simply “give up.”

👉 It’s exactly these details that define quality and reliability — not just price.