SAE J3150_202504

This document provides definitions, terminology, and classifications for automated truck and bus vehicle applications. Vehicles covered by this document are those with a GVWR of more than 10000 pounds and where each vehicle utilizes driving automation systems that perform part or all of the driving task on a sustained basis and that range in level from some driving automation to full driving automation. The document also provides levels of driving automation that apply to the driving automation feature engaged in any given instance of operation of an equipped vehicle. A vehicle may be equipped with a driving automation system that is capable of delivering multiple driving automation features that perform at different levels; the level of driving automation exhibited in any given instance is determined by the feature(s) that are engaged. This document provides guidance for the elements of the dynamic driving task (DDT) for a truck or bus equipped with an Automated Driving System (ADS). Driving automation for trucks and buses has the potential to improve safety, fuel economy, and freight efficiency. To support these objectives, there is a growing need for a framework supporting common terminology and classification of ADS-enabled trucks and buses and multi-vehicle systems and their associated driving automation systems. SAE Recommended Practice J3016 lacks content to reflect the diverse and complex types and use of trucks and buses. To address the current limitations of the SAE J3016 document, it was determined that a new document focusing on trucks and buses is needed. This document is structured to complement SAE J3016.