Brake Blending Guidelines for Heavy Duty Trucks and Buses
J3328
This document considers available retardation mechanisms including friction brakes, regenerative braking systems, engine retarders, transmission intarders, driveline retarders and exhaust brakes in operation on vehicles with GVW ratings greater than 4536kg (10,000 LB).
Rationale: Heavy duty vehicles are often equipped with multiple retardation mechanisms. The purpose of this document is to provide guidance to those involved in coordinating and integrating the operation of these disparate mechanisms.
