For Robotaxis, Safety Must Be Built In, Not Bolted On

For Robotaxis, Safety Must Be Built In, Not Bolted On

To help solve these challenges, the recently introduced Halos Operating System (OS) — a component of the NVIDIA Halos full-stack, comprehensive safety system — offers a unified, production-ready safety foundation for AI-driven vehicles, built on NVIDIA DRIVE Hyperion. It comprises:

At the foundation of NVIDIA Halos OS is Halos Core, which is the next generation of NVIDIA DriveOS and certified to automotive safety standards. It’s audited, documented and proven to behave predictably under fault conditions, with a hypervisor — a specialized software layer — that isolates safety-critical functions so failures can’t reach vehicle controls.

Halos Core is compliant with ISO 26262 ASIL D, includes safety-certified support for NVIDIA CUDA and TensorRT, and provides the TensorRT Edge-LLM open source framework for high-performance large language model inference.

A robotaxi integrates cameras, radar, lidar and other sensors, each streaming data in a different format at a different rate. Without a standardized middleware layer, every hardware change forces teams to manually rebuild those integrations.

Halos SDK removes that burden. Its sensor abstraction layer decouples the autonomous driving stack from individual sensor drivers, so adding or swapping a sensor no longer causes ripples through application code, while a vehicle abstraction layer connects the autonomous driving stack to the rest of the vehicle through a single, consistent interface.

On top, Halos SDK provides the runtime building blocks that safety-critical software demands: a deterministic application-level scheduler for predictable timing, zero-copy inter-process communication that moves data without added latency, a comprehensive system error-handling framework and a robust scenario data recorder — delivering the foundation for highly reliable and low-latency automotive applications.

AI models can match human driving behavior, but regulators require more than performance.

The Halos Applications layer provides safety guardrails for AI through deterministic, rule-based functions, analyzed and designed to behave within defined bounds. It includes world model perception and the top-rated NVIDIA DRIVE active safety stack featuring automatic emergency braking, lane departure warning, blind spot monitoring, collision warning and more.

In addition, in Halos Applications, Halos OS can be combined with end-to-end AI models for which explainability and transparency are essential. This includes the NVIDIA Alpamayo family of open models for autonomous vehicle development, which enables chain-of-thought reasoning, continuously evaluating the road, planning next steps and adapting to changing conditions.

Halos Infra is the cloud-side development infrastructure that enables autonomous vehicle training, simulation and validation at scale. It’s the foundation for the recently released NVIDIA Halos Safety Evaluation Framework (SEF).

SEF provides the tools and guidelines needed to build a credible safety case, from L2 driver assistance to L4 robotaxis. It draws on more than 330 research papers and 1,000 patents developed within NVIDIA Halos OS.

Halos Infra runs on NVIDIA’s three-computer autonomous driving solution:

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