What does EMQX do for connected vehicles?

EMQX connects vehicles and backend applications over MQTT. It routes telemetry, events, and commands for services such as fleet monitoring, diagnostics, and OTA coordination.

Why use MQTT for connected vehicles?

MQTT supports compact messages and two-way communication over persistent connections. QoS levels and session settings help applications handle intermittent cellular connectivity.

Which connected vehicle services can EMQX support?

EMQX can provide messaging for telematics, remote diagnostics, OTA coordination, fleet management, and EV services. Vehicle software and backend applications implement the service logic.

How can I secure vehicle data?

Configure TLS, authenticate vehicles and applications with certificates or tokens, and restrict access to authorized topics. Apply permissions separately for telemetry and commands.

How does EMQX handle intermittent vehicle connectivity?

[**MQTT over QUIC**](https://docs.emqx.com/en/emqx/latest/develop/mqtt-over-quic/features-mqtt-over-quic.html) helps compatible clients reconnect faster and maintain connection continuity as vehicles switch networks. Persistent MQTT sessions can preserve subscriptions and queue eligible messages for delivery after reconnection, subject to expiry and queue limits. Vehicles need local buffering to retain outgoing telemetry while offline.

EMQX FOR CONNECTED VEHICLES

MQTT data backbone for connected vehicles

Connect vehicles, stream telematics data, and power remote diagnostics and services with EMQX.

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Largest automakers: 5/10
EV startups: 7/10
Auto companies: 50+
Car models: 100+
Connected vehicles: 25M+
Messages daily: 1B+

Trusted by industry leaders worldwide

Overview

Why MQTT for connected vehicles

Exchange vehicle data and commands across changing cellular network conditions.

Two-way communication

Send telemetry to backend services and return commands to connected vehicles.

Reliable messaging

Choose MQTT QoS levels and session settings to suit telemetry, alerts, and commands.

Efficient data transfer

Keep messaging overhead low for frequent updates over cellular networks.

Secure connections

Use TLS and client authentication to protect vehicle-to-cloud communication.

Architecture

Unified V2X architecture for connected vehicles

Connect in-vehicle systems with cloud services for telematics, OTA coordination, and V2X applications.

Vehicle systems

DHU

TBox

IVI

OBD-II

V2X Unit

EMQX Cluster

Real-Time MQTT

EMQX Node 1

Rule Engine

Data Integration

EMQX Node 2

EMQX Node 3

EMQX Node N

Services and analytics

Vehicle services

Fleet management

Mobile App

OTA Updates

V2X platform

TSP Platform

Traffic management

Remote diagnostics

Data analytics

Apache Kafka

Data lake

BI Dashboard

Capabilities

Why EMQX for connected vehicles

Build the messaging foundation for connected vehicle services across regions.

Fleet-scale connectivity

Distribute vehicle connections across an EMQX cluster as your fleet and message volume grow.

Clustering guide

High availability

Use clustering to reduce disruption to vehicle messaging when a broker node fails.

Cluster setup guide

Low-latency messaging

Deliver frequent telemetry and remote commands with low broker processing latency.

Performance tuning

Enterprise security

Protect connections with TLS and use certificates or tokens to authenticate vehicles and applications.

Security guide

Data transformation

Filter, extract, and transform MQTT payloads with SQL-based rules before routing them to other systems.

Rule engine guide

File uploads over MQTT

Upload vehicle logs and other files over an MQTT connection using EMQX file transfer.

File transfer guide

MQTT over QUIC

Use QUIC-capable clients to improve connection continuity as vehicles change networks.

QUIC guide

Data integration

Route processed telemetry to streaming platforms, databases, and cloud services through supported connectors.

Integration guide

Flexible deployment

Deploy in your data center or public cloud, with edge components where local processing is needed.

Deployment guide

Applications

What you can build for connected vehicles

Connect vehicle services and applications through a unified MQTT platform.

Telematics and fleet management

Collect vehicle sensor data for fleet monitoring, driver analysis, and maintenance planning.

OTA update coordination

Send update notifications and track rollout status as vehicles receive software or firmware updates.

Cloud-connected V2X services

Share vehicle and infrastructure data with backend applications for traffic insights and service coordination.

Remote control and diagnostics

Connect mobile and backend applications with vehicle services for authorized commands and diagnostic requests.

EV charging and battery monitoring

Track battery status, charging sessions, and charger availability across connected services.

Data for autonomous driving development

Collect selected vehicle telemetry and sensor data for analysis and model development.

Customer story

SAIC Volkswagen

SAIC Volkswagen uses EMQX to build reliable, scalable, secure data infrastructure for its next generation of connected vehicles.

Vehicles by 2026: 2M+
Messages per second: 100k

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Lotus automotive

Lotus uses EMQX to monitor electric vehicle performance in real time and deliver connected services worldwide.

Global latency: <10ms
Reliability: 99.99%