The trusted interface for Connected and Autonomous Vehicles communication.
Discover the two major protocols that enable seamless communication between Connected and Autonomous Vehicles, infrastructure, and service providers.

The Two-Layer Protocol Model for CAV Systems
Complementary Communication Standards
The CAV ecosystem relies on two complementary communication layers, just like the EV charging infrastructure with OCPI and OCA. This two-tier design ensures scalability, safety, and cross-network cooperation in the Connected and Autonomous Vehicle space.
OCAVP 1.1: Open Connected Autonomous Vehicle Protocol
Device-Level Management Protocol
The Open Connected Autonomous Vehicle Protocol (OCAVP 1.1) connects vehicles to backend servers, providing telemetry, commands, updates, and diagnostics. This alliance-backed protocol enables secure and standardized communication between vehicles and their management systems.
OCAVP 1.1 Features
VISS provides standardized communication between vehicles and backend systems, backed by COVESA

OCAVI 1.1: Open Connected Autonomous Vehicle Interoperability
Ecosystem Interoperability Protocol
The Open Connected Autonomous Vehicle Interoperability (OCAVI 1.1) connects mobility platforms, cities, and external service providers. This interoperability standard enables multi-operator ecosystems by providing trip data, booking, availability, routing, and service roaming capabilities.
OCAVI 1.1 Features
TOMP-API enables interoperability between mobility service providers and external platforms

CAV Communication Protocols
Two-Tier Communication Architecture
The foundation of connected and autonomous vehicle communication systems
OCAVP 1.1: Open Connected Autonomous Vehicle Protocol
Connects vehicles to backend servers, providing telemetry, commands, updates, and diagnostics
OCAVI 1.1: Open Connected Autonomous Vehicle Interoperability
Connects mobility platforms, cities, and external service providers
Two-Tier Architecture
Device-to-cloud and platform-to-platform communication layers
Interoperability Focus
Alliance-backed protocols designed for cross-platform compatibility
Safety & Standards
Built with safety and standardization as core principles
Open Ecosystems
Promotes open and interoperable CAV networks through alliance backing
FAQ
Frequently Asked Questions
Explore CAV Protocols
Learn how OCAVP 1.1 and OCAVI 1.1 are creating the communication foundation for the future of transportation

