OVMS: Open source electric vehicle remote monitoring, diagnosis and control

TL;DR

Open Vehicles has released OVMS, an open source platform enabling detailed remote monitoring, diagnostics, and control of electric vehicles. It supports live data, alerts, and customization, with integration options for home automation.

Open Vehicles has launched OVMS, an open source platform that allows electric vehicle owners and developers to remotely monitor, diagnose, and control their vehicles with extensive customization options. The system provides real-time data, alerts, and control capabilities, making it a significant development in EV telematics and personal vehicle management.

OVMS offers live monitoring of key vehicle metrics such as state of charge, temperatures, tyre pressures, and fault conditions. It supports push notifications for critical events like charge aborts, battery cell failures, or potential theft, enhancing vehicle security and maintenance. The platform enables control over functions like charging, climate, and engine tuning, depending on vehicle integration. It features scripting capabilities, allowing interfacing with external charge control systems and automation via MQTT, and supports data logging to SD cards and remote servers.

The system integrates into existing vehicle CAN buses, offering tools such as a configurable OBD2 translator, DBC decoder, CANopen client, and reverse engineering toolkit. OVMS also provides SSH access, WebSocket streaming, and CAN frame injection via TCP, making it a versatile tool for developers and enthusiasts alike. The platform is compatible with native Android and iOS apps for remote control and monitoring, emphasizing user control over data and regional restrictions.

Why It Matters

This development provides EV owners and developers with access to vehicle data and control options, which can support customization, diagnostics, and security features. As electric vehicles become more common, open source solutions like OVMS may influence industry practices, promote innovation, and support vehicle maintenance and safety. The ability to integrate with home automation systems also broadens the scope of EV management within smart home environments, appealing to users interested in connected technology.

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Background

Open Vehicles has been working on open source telematics solutions for EVs, with OVMS being a notable release announced in early 2024. The platform builds on existing vehicle diagnostics standards like CAN bus and OBD2, aiming to offer a customizable interface for EV monitoring and control. Previous efforts in this space have been varied; OVMS consolidates these capabilities into a community-supported project that supports scripting, automation, and data logging. This release aligns with broader trends toward open hardware and software in automotive technology, especially among EV enthusiasts and independent developers.

“OVMS provides a flexible, open source platform for EV owners to monitor and control their vehicles with a range of customization and integration options.”

— Open Vehicles team

“Open source solutions like OVMS could influence how consumers interact with their electric vehicles, particularly in terms of data access and customization.”

— EV industry analyst

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What Remains Unclear

It remains to be seen how widely OVMS will be adopted outside of enthusiast communities or how automakers might respond to open source modifications. The compatibility with various vehicle models and any legal or warranty considerations are still being evaluated. Additionally, the level of ongoing development and support may vary, and integration complexity could differ depending on vehicle specifications.

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What’s Next

Future steps include expanding vehicle compatibility, developing comprehensive documentation, and encouraging community contributions. Monitoring updates, new integrations, and potential collaborations with automakers or third-party developers will help gauge the platform’s future impact.

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Key Questions

Can I install OVMS on any electric vehicle?

OVMS is designed to support a range of EVs with CAN bus systems, but compatibility depends on the specific hardware and software of the vehicle. Refer to the project documentation for detailed compatibility information.

Is OVMS safe to use and does it affect vehicle warranty?

As an open source platform, OVMS offers extensive control and customization options. Users should consider potential warranty implications and ensure proper installation, consulting vehicle manufacturers as needed.

Does OVMS support remote control of vehicle functions?

Yes, OVMS can support remote control features such as charging and climate control through its mobile applications, depending on vehicle compatibility and configuration.

Will using OVMS void my vehicle warranty?

This depends on the vehicle manufacturer and local regulations. Users should verify warranty terms before installation, as modifications may impact coverage.

What are the main benefits of using OVMS?

Key benefits include real-time vehicle monitoring, diagnostics, customizable control options, data logging, and integration with home automation systems, while respecting user data privacy.

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