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Open-Source Software for Connected and Autonomous Vehicles: What It Can Speed Up

Open-source projects can help vehicle teams reuse autonomy software and coordinate cloud-to-car development. Adoption is not proof of faster delivery or vehicle safety.
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Open-source software can help connected and autonomous vehicle teams reuse components, collaborate across organizations, and connect in-vehicle systems with cloud-based development and fleet operations. That can remove some duplicated engineering work, but available evidence does not establish how much development time it saves or prove better real-world safety outcomes. The software still has to be integrated, validated, and supported for a specific vehicle and operating environment.

What can open source accelerate?

Vehicle software is built from interdependent parts: autonomy algorithms, in-vehicle middleware, cloud services, development workflows, fleet software management, and update systems. Shared code and common interfaces can let teams build on work that already exists instead of starting every component from scratch. Open collaboration can also make it easier for automakers, suppliers, and technology developers to coordinate around reusable foundations.

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Those are plausible ways to reduce duplicated effort and improve collaboration—not a measured promise of faster vehicle development. The published survey findings below describe adoption and respondents’ views, not controlled comparisons of development time or safety results.

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How does an autonomous-driving software stack fit together?

Autoware’s overview describes a modular autonomy stack built on Robot Operating System (ROS). In broad terms, it turns sensor and map data into a driving plan, then translates that plan into commands for the vehicle:

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  • Planning: The software selects a path or maneuver based on its understanding of the scene.
  • Control: The planned motion is translated into steering, braking, and acceleration commands.
  • Vehicle interface and maps: Interfaces connect software to vehicle functions, while map data supports localization and planning.

Separating these responsibilities into modules with interfaces and APIs can make components easier to develop or integrate independently. It does not remove the need to check that modules work together on the intended sensors, compute hardware, vehicle interfaces, and driving conditions.

Autoware Core and Universe

Autoware divides its software into Core and Universe. Core contains functionality for project-targeted operational design domains (ODDs) and follows stated engineering practices; Universe includes additional packages for research, development, and early experimentation. Autoware describes a roadmap toward curb-to-curb Level 4 capability. That is the project’s stated direction, not a claim that every Autoware-based system—or every deployment—has Level 4 capability.

How do open projects connect the vehicle to cloud and fleet workflows?

Autonomy software is only one part of a software-defined vehicle program. Teams also need ways to develop and validate software, manage deployed vehicle software, and handle updates. The Autoware Open AD Kit brings software-defined vehicle practices into the Autoware ecosystem. Autoware describes it as the first SOAFEE blueprint and presents cloud-native development, connected data collection and calibration, simulation, system validation, and integration with an OTA ecosystem. The page names eSync Alliance and MIH Alliance as stakeholders, and says eSync technology enables OTA capability.

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The wider in-vehicle and cloud-to-car foundation is also a focus of Eclipse SDV, which describes itself as an open collaboration platform for scalable, modular, safety-capable components. Eclipse SDV reports participation by more than 50 OEMs, tier-one suppliers, and technology leaders across more than 25 projects; those are organization-reported figures. The organization also says eleven European automotive companies signed an MoU in June 2025, with initial work centered on Eclipse S-CORE.

The Eclipse SDV working-group charter groups work into three areas:

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  • SDV.Edge: cloud-native technology in vehicle software domains.

The charter also describes work on quality management, functional safety, software supply-chain security, compatibility, and interoperability processes. Shared foundations in these areas can help teams coordinate work across the vehicle lifecycle, but using a project or framework does not by itself show that a particular product meets its requirements.

What do industry surveys show—and what do they not show?

Surveys point to broad interest in software-defined vehicles and open-source software in automotive development. Their findings are reports from respondents, not direct measurements of faster engineering or safer vehicles.

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Survey finding Owner, timing, and respondent context How to read it
95% expected open-source software to enhance flexibility and scalability in software-defined vehicles. Eclipse Foundation, 2024; a survey of 300 automotive developers and business leaders. Respondents’ expectation, not a measured result.
98% recognized substantial value in software-defined vehicle technologies. Eclipse Foundation, 2024; the same survey of 300 automotive developers and business leaders. Reported recognition of value, not evidence of a specific return or development-time gain.
79% used open-source tools and/or in-vehicle software for automotive development. Perforce Software and Eclipse Foundation, 2025; survey conducted in Q4 2024 with more than 650 automotive development professionals worldwide. Reported use among survey respondents.
39% of respondents who used open-source software actively contributed to open-source projects. Perforce Software and Eclipse Foundation, 2025; the Q4 2024 survey of more than 650 automotive development professionals worldwide. Contribution among OSS users, not all respondents.

The 2024 figures come from the Eclipse Foundation’s report announcement; the 2025 figures come from the 2025 State of Automotive Software Development summary. In the 2024 announcement, Eclipse Foundation executive director Mike Milinkovich said, “Open source software is playing an increasingly vital role in the development of software-defined vehicles.” This describes the organization’s view of the trend, rather than a quantified effect on delivery time or safety.

What integration risks should teams plan for?

Open code is not automatically easy to integrate or maintain. In the 2025 Perforce Software and Eclipse Foundation survey, respondents reported several challenges:

Reported challenge Share of survey respondents What a team should examine
Security concerns 59% How vulnerabilities are reported and addressed, and how dependencies and updates are controlled.
Licensing issues 43% Whether licenses and obligations fit the product, distribution model, and organization’s policies.
Interoperability challenges 36% Whether components, interfaces, versions, and hardware work together in the intended configuration.
Lack of long-term support 35% Who will maintain each dependency, and what happens if its original maintainers or contributors move on.

These are survey responses, not universal failure rates or predictions for a particular project. They do, however, show why adopting a component is only the beginning: teams need ownership for integration, dependency tracking, security response, compatibility testing, and ongoing maintenance.

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Does open-source autonomy software establish that a vehicle is safe?

No. Public source code or a shared blueprint does not by itself establish certification, roadworthiness, or suitability for a particular ODD. Safety depends on the whole system: architecture, hardware integration, failure detection and containment, operating limits, and validation evidence for the specific vehicle.

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A 2026 Autoware Foundation announcement describes a joint reference blueprint from Autoware, SOAFEE, and eSync Alliance. In its proof of concept, an Autoware pipeline on a Linux-based primary compute platform communicates through ROS 2/DDS with an isolated Zephyr RTOS-based safety island. The announcement describes that island as responsible for supervision, fallback control, and emergency actuation. It says a minimum-risk maneuver was validated in the proof of concept and that secure OTA updates addressed verification, traceability, and rollback.

Those are claims about the described blueprint and demonstration, not proof that open collaboration automatically makes a vehicle safe or that a vehicle using this design is certified. For a particular build, teams still need evidence addressing its own components, interfaces, operating conditions, and safety case.

How should a team evaluate a development platform?

Autoware says the Open AD Kit has been tested on ADLINK’s AVA Platform, Autocore’s PCU, NVIDIA’s Jetson Orin family, and NXP’s BlueBox III. That establishes the named families as test platforms for the kit; it does not identify a specific Jetson Orin SKU or show that any configuration meets every autonomy workload. Treat development hardware as a workload-dependent choice, not a production approval.

Before committing to a platform or software stack, evaluate:

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  • Compute capacity against the perception and other workloads the system must run.
  • Supported software and accelerator stack, including compatibility with the intended components.
  • Sensor connectivity and other input/output requirements.
  • Power and thermal limits in the intended installation.
  • Real-time behavior and any need to partition safety-related functions.
  • Developer support and the expected lifecycle of the hardware and software.
  • Whether the exact configuration has been validated with the intended stack and vehicle interfaces.

A disciplined evaluation should also define the target ODD, identify safety-critical functions, specify how failures will be detected and contained, and determine what evidence supports the safety case for the finished vehicle. The cited project pages do not settle those questions for an arbitrary build.

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