Overview
IEC TS 61851-3-5:2023 is a technical specification from the International Electrotechnical Commission (IEC) that addresses communication for conductive charging systems for electric vehicles (EVs). Specifically, it describes the communication protocol and pre-defined application objects for DC EV supply equipment where protection is based on double or reinforced insulation. This standard defines requirements for CANopen communication, enabling reliable data exchange between the supply network and electric road vehicles, removable rechargeable energy storage systems (RESS), or traction batteries.
By standardizing pre-defined communication parameters and general application objects, IEC TS 61851-3-5:2023 helps ensure compatibility, safety, and interoperability in the rapidly expanding EV charging infrastructure. This document is a vital resource for manufacturers, developers, and integrators dealing with DC charging equipment and CANopen-based systems.
Key Topics
IEC TS 61851-3-5:2023 covers several crucial aspects related to DC EV supply equipment, with an emphasis on communication and control:
- CANopen Communication: Specifies how DC charging equipment communicates with EVs and associated devices using the CANopen protocol.
- Pre-defined Communication Objects: Details a set of standardized objects, such as error registers, device types, identity parameters, heartbeat monitoring, and control words, used for system health, functionality, and security.
- General Application Objects: Outlines objects for monitoring and setting device status, operational parameters, alarm and warning statuses, and unique identity markers.
- Fleet and Stationary Applications: Includes objects related to vehicle travel metrics (distance, time, transferred energy) and stationary monitoring (ambient temperature, AC/DC measurements).
- Security Objects: Provisions for security-related parameters such as locking status and access keys.
- Protocol Structure and Definitions: Descriptions cover object structures, value definitions, message types, and entry parameters, facilitating consistent implementation across manufacturers.
Applications
IEC TS 61851-3-5:2023 is applicable to a broad range of scenarios in the electric vehicle industry, making it highly valuable in the following contexts:
- DC Charging Station Manufacturing: Essential for the design and development of charging stations that use double or reinforced insulation and CANopen-based communication.
- EV System Integration: Used by system integrators to ensure that charging infrastructure and EVs can communicate seamlessly, improving safety and interoperability.
- Fleet Management: Provides standardized data structures for managing fleets of electric vehicles, enabling accurate monitoring of usage, energy consumption, and operational status.
- Energy Management Systems (EMS): Supports integration into broader EMS platforms by defining process data objects (PDOs) and communication requirements.
- Compliance and Testing: Serves as a baseline for compliance tests and certification of DC EV supply equipment, supporting manufacturers in meeting international regulatory and safety requirements.
Related Standards
IEC TS 61851-3-5:2023 fits within a wider framework of international EV charging and communication standards, often used together to enable effective deployment:
- IEC 61851 Series: The core standard for electric vehicle conductive charging systems, covering general requirements, AC and DC charging, and communication interfaces.
- IEC 61851-23: Specific to DC fast charging stations for electric vehicles.
- IEC 61851-1: General requirements for conductive EV charging systems.
- IEC 62196 Series: Connector and inlet standards for EV charging.
- ISO 15118: Focuses on network and application protocol requirements for vehicle-to-grid communication, complementing CANopen implementations.
By adhering to IEC TS 61851-3-5:2023, stakeholders contribute to a robust, interoperable, and future-ready EV charging ecosystem that prioritizes safety, efficiency, and user experience.