# US 2021/0276446 A1 · Method and Apparatus for Controlling Charging, Based on Monitored Communication Signals Associated with a Charging Session > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0276446 A1 - Document ID: US20210276446A1 - Status: Published application - Kind: A1 - Application number: 16/973,874 - Filed: 2019-06-12 - Published: 2021-09-09 - Earliest claimed: 2018-06-13 - Assignees: IoTecha Corp. - Applicants: IoTecha Corp. - Inventors: Oleg LOGVINOV; Michael J. MACALUSO - Web page: https://patentgrep.com/patent/US20210276446A1 ## CPC - B60L 53/66: Data transfer between charging stations and vehicles - H04B 3/546: {Combination of signalling, telemetering, protection (circuits for remote indication of supply or distribution network condition H02J13/00)} - B60L 53/14: Conductive energy transfer - B60L 53/305: {Communication interfaces} - B60L 53/60: Monitoring or controlling charging stations - B60L 53/62: in response to charging parameters, e.g. current, voltage or electrical charge - B60L 53/665: {Methods related to measuring, billing or payment} - H02J 7/40: characterised by the exchange of charge or discharge related data - H02J 7/80: including monitoring or indicating arrangements - H02J 7/971: {the charge cycle being controlled or terminated in response to non-electric parameters} - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/12: Electric charging stations - Y02T 90/14: Plug-in electric vehicles - Y02T 90/16: Information or communication technologies improving the operation of electric vehicles - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - H04B: TRANSMISSION - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Controlling electric vehicle (EV) charging operation by controlling capturing, from a pilot line communicatively linking an 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 EV by the charging apparatus; determining, from session success information from a controller of the 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 2) The method of claim 2, wherein the given EV charging device is the given EV or the EV charging apparatus. ### Claim 4 (depends on 1) The method of claim 1, wherein the EV charging apparatus includes the processing device. ### Claim 5 (depends on 1) 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. ### Claim 6 (depends on 1) 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. ### Claim 7 (depends on 1) 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. ### Claim 8 (depends on 7) 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. ### Claim 9 (depends on 1) 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. ### Claim 10 (depends on 1) 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. ### Claim 11 (depends on 1) 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. ### Claim 12 (depends on 2) 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. ### Claim 13 (depends on 1) 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. ### Claim 14 (depends on 13) 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.