ISO 15118-8:2018 PDF

Road vehicles - Vehicle to grid communication interface - Part 8: Physical layer and data link layer requirements for wireless communication

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Title (English):

ISO 15118-8:2018

Road vehicles - Vehicle to grid communication interface - Part 8: Physical layer and data link layer requirements for wireless communication

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 34
Publication date:: February 27, 2018
Edition:: IEC IS 15118 edition 1 version 1
ICS:: 43.120

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Description (English):

ISO 15118-8:2018 specifies the requirements of the physical and data link layer of a wireless High Level Communication (HLC) between Electric Vehicles (EV) and the Electric Vehicle Supply Equipment (EVSE). The wireless communication technology is used as an alternative to the wired communication technology as defined in ISO 15118‑3. It covers the overall information exchange between all actors involved in the electrical energy exchange. ISO 15118 (all parts) are applicable for conductive charging as well as Wireless Power Transfer (WPT). For conductive charging, only EVSEs compliant with "IEC 61851‑1 modes 3 and 4" and supporting HLC are covered by this document. For WPT, charging sites according to IEC 61980 (all parts) and vehicles according to ISO/PAS 19363 are covered by this document.

Technical details

Technical committee: TC 69 - Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks
SKU: ISO 15118-8:2018

Abstract

Overview - ISO 15118-8:2018 (Physical & Data Link Layer for Wireless V2G)

ISO 15118-8:2018 defines the physical layer (Layer 1) and data link layer (Layer 2) requirements for wireless High Level Communication (HLC) between Electric Vehicles (EV) and Electric Vehicle Supply Equipment (EVSE). It provides the wireless alternative to the wired HLC defined in ISO 15118‑3 and applies to both conductive charging (EVSE compliant with IEC 61851‑1 modes 3 and 4) and Wireless Power Transfer (WPT) (charging sites per IEC 61980 and vehicles per ISO/PAS 19363). The standard mandates use of WLAN technology (IEEE 802.11 features commonly known as 802.11n / HT) operating in the 2.4 GHz and 5 GHz bands.

Key topics and technical requirements

Physical & data link scope: Requirements for Layer 1 and Layer 2 to support robust, interoperable wireless V2G communications (OSI-based services for HLC).
WLAN technology: Implementation of HT AP/STA feature set from IEEE 802.11 (802.11n) for EVCC (EV Communication Controller) and SECC (Supply Equipment Communication Controller).
Frequency bands: Operation in ISM and U‑NII bands (2.4 GHz and 5 GHz), with attention to national regulations and coexistence.
Channel scanning & selection: Procedures for interference scanning and auto channel selection to ensure reliable links in noisy environments.
Quality of Service (QoS): Mechanisms to support prioritized traffic and maintain communication reliability during charging sessions.
Association & pairing: Layer 2 association/reassociation, pairing processes and link establishment between EVCC and SECC.
Layer 2 interfaces: Defined interfaces and service primitives for the HLC over wireless links.
Security considerations: Layer 2 and PHY aspects of secure communications are addressed to protect energy exchange and billing functions.
Supporting guidance: Informative annexes cover antenna mounting, interference scan examples, service-available-area concepts, and national U‑NII regulations.

Practical applications and users

ISO 15118-8 is intended for:

EV manufacturers and Tier‑1 suppliers implementing EVCC wireless modules
EVSE manufacturers / operators developing SECC WLAN-enabled charging stations
WPT system designers integrating wireless communications for dynamic or static inductive charging
Systems integrators, test labs and certification bodies verifying PHY/MAC conformance and interoperability
Network engineers and OEM architects planning robust V2G deployments and service-available areas
Policy makers / regulators referencing compliance for spectrum and EMC considerations

Adopting ISO 15118-8 helps ensure interoperable, secure, and robust wireless V2G communications across conductive and wireless charging ecosystems.

Related standards (core references)

ISO 15118‑1, ISO 15118‑2, ISO 15118‑3
IEEE Std 802.11‑2012 (WLAN MAC/PHY)
IEC 61851‑1 (conductive charging)
IEC 61980 (WPT)
ISO/PAS 19363 (WPT vehicle requirements)

Keywords: ISO 15118-8, vehicle-to-grid, V2G, wireless communication, EV, EVSE, WLAN, IEEE 802.11n, physical layer, data link layer, WPT, SECC, EVCC.

Related standards

Standards mentioned in the description

Abstract

Overview - ISO 15118-8:2018 (Physical & Data Link Layer for Wireless V2G)

Key topics and technical requirements

Physical & data link scope: Requirements for Layer 1 and Layer 2 to support robust, interoperable wireless V2G communications (OSI-based services for HLC).
WLAN technology: Implementation of HT AP/STA feature set from IEEE 802.11 (802.11n) for EVCC (EV Communication Controller) and SECC (Supply Equipment Communication Controller).
Frequency bands: Operation in ISM and U‑NII bands (2.4 GHz and 5 GHz), with attention to national regulations and coexistence.
Channel scanning & selection: Procedures for interference scanning and auto channel selection to ensure reliable links in noisy environments.
Quality of Service (QoS): Mechanisms to support prioritized traffic and maintain communication reliability during charging sessions.
Association & pairing: Layer 2 association/reassociation, pairing processes and link establishment between EVCC and SECC.
Layer 2 interfaces: Defined interfaces and service primitives for the HLC over wireless links.
Security considerations: Layer 2 and PHY aspects of secure communications are addressed to protect energy exchange and billing functions.
Supporting guidance: Informative annexes cover antenna mounting, interference scan examples, service-available-area concepts, and national U‑NII regulations.

Practical applications and users

ISO 15118-8 is intended for:

EV manufacturers and Tier‑1 suppliers implementing EVCC wireless modules
EVSE manufacturers / operators developing SECC WLAN-enabled charging stations
WPT system designers integrating wireless communications for dynamic or static inductive charging
Systems integrators, test labs and certification bodies verifying PHY/MAC conformance and interoperability
Network engineers and OEM architects planning robust V2G deployments and service-available areas
Policy makers / regulators referencing compliance for spectrum and EMC considerations

Adopting ISO 15118-8 helps ensure interoperable, secure, and robust wireless V2G communications across conductive and wireless charging ecosystems.

Related standards (core references)

ISO 15118‑1, ISO 15118‑2, ISO 15118‑3
IEEE Std 802.11‑2012 (WLAN MAC/PHY)
IEC 61851‑1 (conductive charging)
IEC 61980 (WPT)
ISO/PAS 19363 (WPT vehicle requirements)

Keywords: ISO 15118-8, vehicle-to-grid, V2G, wireless communication, EV, EVSE, WLAN, IEEE 802.11n, physical layer, data link layer, WPT, SECC, EVCC.

ISO 15118-8:2018 PDF

Technical details

Abstract

Overview - ISO 15118-8:2018 (Physical & Data Link Layer for Wireless V2G)

Key topics and technical requirements

Practical applications and users

Related standards (core references)

Related standards

Abstract

Overview - ISO 15118-8:2018 (Physical & Data Link Layer for Wireless V2G)

Key topics and technical requirements

Practical applications and users

Related standards (core references)

Related standards

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