OpenV2G

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OpenV2G - an open source project implementing the basic functionality of the ISO IEC 15118 vehicle to grid (V2G) communication interface Version 0.9.6, released January 14, 2025 http://openv2g.sourceforge.net/

Please report bugs via the SourceForge bug tracking system at http://sourceforge.net/tracker/?group_id=350113. Thank you.

Copyright (C) 2007-2025 Siemens AG

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/.

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CHANGES from version 0.9.5:

• fix overflow when decoding large integer numbers

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CHANGES from version 0.9.4:

• fix possible memory corruption bug

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CHANGES from version 0.9.3:

• Support for 15118-2-2016 (ISO2) started besides 15118-2-2013 (ISO1) and DIN
• fix eMAID fragment encoding/decoding support
• internal coding updates
• bug-fixes

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CHANGES from version 0.9.2:

• resolves XML signature interoperability issue Note: To make use of xmldsig the following defines have to be set. in "xmldsigEXIDatatypes.h" #define DEPLOY_XMLDSIG_CODEC SUPPORT_YES #define DEPLOY_XMLDSIG_CODEC_FRAGMENT SUPPORT_YES in "v2gEXIDatatypes.h" #define DEPLOY_ISO_CODEC_FRAGMENT SUPPORT_YES Otherwise the code is turned off.

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CHANGES from version 0.9.1:

• resolves bug with name clashes w.r.t. iso and din track
• fixes issue with test code for init handshake
• Note: OpenV2G 0.9.2 is essentially just a bug fixed version of OpenV2G 0.9.1

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CHANGES from version 0.9:

• includes support for DIN and hence interoperability with OpenV2G 0.7 (needs to be switched on though by #define DEPLOY_DIN_CODEC)
• fixes bugs and warnings for Visual Studio
• Note: OpenV2G 0.9.1 is a superset of previous versions v2g...c/h files support ISO track din...c/h files support DIN track

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CHANGES from version 0.8:

• large code footprint reduction which resulted in a new API (please take a look at the example in src/test folder)
• datatype differences w.r.t. arrays, strings, bytes, isUsed, and enum-naming
• bug-fixes
• Note: OpenV2G 0.8 and 0.9 are interoperable, meaning that one can generate streams with one and decode with the other or vice-versa

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CHANGES from version 0.7:

• adaption of V2G schema changes (reflects the ISO/IEC 15118-2 FDIS status)
• bug-fixes

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CHANGES from version 0.7:

• adaption of V2G schema changes (reflects the ISO/IEC 15118-2 FDIS status)
• bug-fixes

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CHANGES from version 0.6:

• adaption of V2G schema changes (reflects the ISO/IEC 15118-2 DIS status and DIN 70121)
• reduced memory usage
• EXI decoder skips schema deviations according to EXI Profile
• bug-fixes

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CHANGES from version 0.5:

• adaption of V2G schema changes
• application handshake protocol implementation
• asynchronised communication
• reduced memory usage
• changed V2GTP byte order from little endian to big endian
• bug-fixes
• updated AC demo interaction between EV and EVSE, and
• updated DC demo interaction between EV and EVSE

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CHANGES from version 0.4:

• adaption of V2G schema changes
• V2GTP implementation (replaces the DoIP implementation)
• EXI default coder for the 15118 schema (replaces the strict mode of EXI)
• AC demo interaction between PEV and EVSE, and
• DC demo interaction between PEV and EVSE

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CHANGES from version 0.3.1:

• adaption of V2G schema changes
• supporting of DC messages
• example program showing the message sequence of AC charging and DC charging
• bug-fixes

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CHANGES from version 0.3:

• Bug-fixes
• reduced memory usage
• some type changes in the EXI codec and V2G service: ** struct v2gService->struct EXIService in v2g_service.h ** size_t->uint16_t in v2g_serviceClientDataTransmitter.h and doIP.h
• renaming of some enumeration values in v2g_serviceDataTypes.h

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CHANGES from version 0.2.2:

• Bug-fixes
• first DoIP implementation
• V2G message error handling
• adaption of V2G schema changes
• code optimizations

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CHANGES from version 0.2.1:

• Bug-fixes
• adaption of V2G schema changes
• some code optimizations

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CHANGES from version 0.2:

• Bug-fixes
• Fixed compiler warnings

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CHANGES from version 0.1:

• Bug-fixes
• Service and Client added