TMC IR_2023-1 Factors Affecting Aftertreatment Systems in Vocational Duty Cycles

S.14 Last Mile & Vocational Vehicle Study Group Information Report: 2023-1
Factors Affecting Aftertreatment Systems in Vocational Duty Cycles

This Information Report was developed by the S.14 Last Mile and Vocational Vehicles Study Group of ATA’s Technology & Maintenance Council (TMC). This document will examine the most common components of aftertreatment systems and how they can be impacted by the less-than-optimal conditions of the duty cycles of typical vocational applications. It will review the challenges related to meeting regulatory performance and monitoring requirements. It will also explore methods and reference existing TMC maintenance practices which can be used to mitigate these effects.