ISO 15118 Manual - V2G Clarity

ISO 15118 Manual

For your "Aha" moments. Sound, comprehensive, and clear.

ISO 15118 Manual cover

 

The ISO 15118 Manual is for beginner and experts alike, being in-depth and comprehensible at the same time. 

You will be guided through all the steps that are necessary to carry out a complete charging session between an electric vehicle and a charging station, focussing on the convenient Plug & Charge feature.

Document structure ISO 15118

 

Learn about the ISO 15118 document family as well as IEC 62196 and IEC 61851 (including PWM signaling) on which ISO 15118 relies for the complete charging process to be carried out.

Get an overview of a typical ISO 15118 charging procedure for AC and DC charging with regards to the necessary messages to be exchanged. Delve right into the use cases related to these charging procedures.

Digital signature explained

 

Fully understand the mechanisms applied on transport layer and on application layer to secure the communication between EV and charging station with regards to confidentiality, integrity and authenticity: Elliptic curve cryptography, ECDH key agreement, ECDSA signatures, X.509 certificates, Public-Key-Infrastructures (PKI), TLS handshake, OCSP, ...

Detailed examples of creating and verifying XML-based digital signatures on the basis of an AuthorizationRequest and CertificateInstallationResponse message.

PKI structure ISO 15118

 

Public-Key-Infrastructures (PKIs) are a system for the creation, storage, distribution and revocation of digital certificates. You will learn about the motivations behind creating the ISO 15118 specific PKI structure, the different types of certificates to be applied as well as the non-functional PKI requirements coming with it.

AC message sequence til CertificateUpdate

 

The convenience feature Plug&Charge which enables an extremely user-friendly charging experience is based on the authentication and authorization through a digital contract certificate. This contract certificate as well as the corresponding private key need to be installed into the EV by means of a provisioning process.

You will be guided through the complete certificate installation process - one of the most challenging parts of ISO 15118 - step by step.

AuthorizationRequest signature

 

After the provisioning process has been completed, the EV is able to authenticate and authorize itself by using the newly installed contract certificate - without any further interaction needed by the user.

I will show you how this procedure is carried out, how replay attacks are avoided and what messages are exchanged during this communication phase.

PMaxSchedule, SalesTariff and ChargingSchedule

 

The EV and the charging station exchange some charging parameters and technical restrictions for the charging process before the charging loop can be entered.

You will also learn about the concept of renegotiating a charging schedule and influencing the charging process through so-called PMaxSchedules and SalesTariffs, information which can reflect the current grid situation.

DC charging session example

 

This masterclass on ISO 15118 finishes with an extensive chapter that will run you through a complete exemplary DC charging session.

This includes code listings of real request and response messages exchanged between an EV, a charging station and an IT backend which operates the charging station using the Open Charge Point Protocol (OCPP) - currently a world-wide commonly used communication protocol between charging stations and managing IT backend systems.

 

2018

Finally, we will take a look into the future and see what will change with edition 2 of ISO 15118 and what new features will be introduced, such as wireless charging and communication or bi-directional power transfer.

As you see, the book covers a lot of ground, providing you with all the information you need to master the Vehicle-2-Grid communication technology.

Ready to get into it?

The ebook is the perfect basis. But in order to become a real V2G Master,
you need to fully understand Plug & Charge.

  CHECK OUT THE VIDEO TUTORIAL

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ISO 15118 Manual preview

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Errata and Updates

Your feedback is highly appreciated and needed to keep this manual at its position as THE standard reference on ISO 15118.

If you spot an error somewhere in the ebook or do not understand a passage, please let me know.

As paragraphs might be rewritten or sections added upon updating the ISO 15118 Manual, the respective page or section which the first column refers to might have changed in the new version. 

Section (Page)

Errata / Addenda

Manual updated

8.2 (124)

Wrong:
"... would contain at least 256 bytes for the issuerNameHash (assuming that we use SHA- 256), another 256 bytes for the issuerKeyHash ..."

Correction:
Since SHA-256 produces hashes of 256 bits length, we get 256 bits for the issuerNameHash and issuerKeyHash.

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