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1. WO2019241395 - METHOD AND APPARATUS FOR CONTROLLING CHARGING, BASED ON MONITORED COMMUNICATION SIGNALS ASSOCIATED WITH CHARGING SESSION

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[ EN ]

CLAIMS

1. A method for controlling electric vehicle (EV) charging operation comprising: controlling, by a processing device,

capturing, from a pilot line communicatively linking a given EV with an EV charging apparatus, at least one signal of a pulse width modulated (PWM) signal or power line communication (PLC) signal indicating EV charging session information associated with charging the given EV by the EV charging apparatus;

determining, from session success information from a controller of the EV charging apparatus, whether to analyze the EV charging session information; and when the session success information is determined to not indicate successful completion of an EV charging session,

extracting the EV charging session information from the at least one signal according to Internet protocol layer, and

analyzing the extracted EV charging session information to determine a marginal operating condition or a failure condition associated with an EV charging session.

2. The method of claim 1, further comprising:

controlling, by the processing device, providing an EV charging operation control output to a given EV charging device, to cause change in operation of the given EV charging during a given EV charging session.

3. The method of claim 2, wherein the given EV charging device is the given EV or the EV charging apparatus.

4. The method of claim 1, wherein the EV charging apparatus includes the processing device.

5. The method of claim 1, wherein the processing device is of another apparatus configured to be communicatively coupled to (i) a charging controller of the EV charging apparatus and (i) a communication link communicatively linking the EV charging apparatus and the given EV.

6. The method of claim 1, wherein the least one signal includes at least one of a Signal Level Attenuation Characterization (SLAC) message or an ISO/IEC 15118 message.

7. The method of claim 1, further comprising:

controlling, by the processing device, acquiring given EV charging session related information from at least one sensor generating sensor information related to EV charging.

8. The method of claim 7, wherein the at least one sensor is a DC current or voltage sensor, or an AC current or voltage sensor at an AC power meter.

9. The method of claim 1, wherein, when the session success information is determined to indicate unsuccessful completion, the method further comprises controlling, by the processing device, storing the extracted EV charging session information in a memory.

10. The method of claim 1, wherein the analyzing includes determining, from the extracted EV charging session information, at least one of whether (i) a communication handshake is established between the EV charging apparatus and the given EV, (ii) a communication link between the EV charging apparatus and the given EV is concluded, or (ii) a given response is sent from one of the EV charging apparatus and the given EV responsive to a given request sent from the other the EV charging apparatus and the given EV.

11. The method of claim 1, wherein the extracting and the analyzing are performed in a case when the session success information is determined to indicate successful completion of an EV charging session.

12. The method of claim 2, wherein the change in operation relates to a communication protocol used for transmission and reception of communication signals including given EV charging session information at the given EV charging device or the EV.

13. The method of claim 1, wherein the analyzing includes comparing first data of the extracted EV charging session information of a first internet protocol layer having a first timing with second data of the extracted EV charging session information of a second internet protocol having a second timing corresponding to the first timing.

14. The method of claim 13, wherein the analyzing includes recognizing a pattern from a plurality of data of the extracted EV charging session information at a plurality of internet protocol layers having respectively corresponding timings.