ISO (International Organization for Standardization) develops and publishes various standards in order to ensure compatibility, safety, and efficiency in different industries. When it comes to the electric vehicle (EV) industry, ISO 15118 plays a crucial role in standardizing communication between electric vehicles and charging infrastructure. In particular, ISO 15118-2 and ISO 15118-20 are two important parts of this standard. This article aims to explain the difference between these two parts in a simplified and easy-to-understand way.
ISO 15118-2: Communication Interface for Plug-in Electric Vehicles
ISO 15118-2 focuses on the communication interface requirements for plug-in electric vehicles. It defines the messages and data formats that enable secure and standardized communication between the vehicle and the charging station. The objectives of this part of the standard include improving interoperability, enhancing user convenience, and ensuring reliable and efficient charging. Key features of ISO 15118-2 include the Plug and Charge functionality, where the vehicle is authorized and authenticated automatically without requiring any user interaction, as well as bidirectional communication for advanced functionalities like smart charging and grid integration.
ISO 15118-20: Physical Layer and Data Link Layer Requirements
ISO 15118-20, on the other hand, focuses on the physical layer and data link layer requirements for implementing ISO 15118-2. This part of the standard specifies the technical details related to the communication protocols, connectors, and physical interfaces needed to establish a reliable and efficient communication link between the EV and the charging station. It ensures that the communication infrastructure can support fast and secure data transfer, while also considering factors like electromagnetic compatibility and safety requirements. ISO 15118-20 defines the Wireless Power Transfer (WPT) communication, which allows for wireless charging, and specifies the use of Power Line Communication (PLC) technology for wired communication.
Differences between ISO 15118-2 and ISO 15118-20
The main difference between ISO 15118-2 and ISO 15118-20 lies in their scope and focus. While ISO 15118-2 concentrates on defining the communication interface requirements for electric vehicles, ISO 15118-20 deals with the physical layer and data link layer requirements necessary for implementing ISO 15118-2. In simpler terms, ISO 15118-2 defines what needs to be communicated, while ISO 15118-20 specifies how the communication should take place. Both parts work together to ensure seamless and standardized communication between EVs and charging infrastructure.
Furthermore, ISO 15118-2 and ISO 15118-20 are designed to complement each other. ISO 15118-20 provides the technical specifications needed to implement ISO 15118-2, ensuring that the communication protocols and interfaces are interoperable and compatible across different manufacturers and charging stations. By adhering to these standards, automakers and charging infrastructure providers can ensure a consistent and user-friendly experience for EV owners, facilitating widespread adoption and integration of electric vehicles into our transportation system.
In conclusion, ISO 15118-2 and ISO 15118-20 are integral parts of the ISO 15118 standard that address different aspects of communication in the electric vehicle industry. While ISO 15118-2 focuses on the communication interface requirements, ISO 15118-20 deals with the physical layer and data link layer requirements for implementing ISO 15118-2. Together, they provide a standardized framework that enables secure, efficient, and interoperable communication between electric vehicles and charging infrastructure, thus promoting the growth and advancement of the EV industry.
Nina She