SAE J1505-2011 PDF

Scope: This SAE Recommended Practice provides the test procedure and instructions for air braked single unit trucks, buses, and combination vehicles. It also provides recommendations for: Instrumentation and equipment, Vehicle preparation, and calculating distribution of brake force. This procedure provides a method to determine the brake force distribution and threshold pressures for trucks and buses with a GVWR greater than 4536 kg (10 000 lb). Other equipment and procedures could be used to determine approximate relative work or energy being absorbed by a vehicle's brakes. A. "performance based brake tester" can determine low pressure/low speed torques of different brakes. A "temperature/thermal balance" can show relative temperatures of brakes, thus indicating approximate energy absorbed.

SAE J1505-2011 Referenced Document

SAE J1626-1999 Braking, Stability, and Control Performance Test Procedures for Air-and Hydrualic-Brake-Equipped Trucks, Truck-Tractors and Buses
SAE J1854-2003 Brake Force Distribution Performance Guide - Truck and Bus
SAE J2115-2006 Brake Performance and Wear Test Code Commercial Vehicle Inertia dynamometer
SAE J225-2003 Brake Force Distribution Field Test Procedure for Truck and Bus

2022 SAE J1505-2022 Brake Force Distribution Test Procedure - Trucks and Buses
2011 SAE J1505-2011 Brake Force Distribution Test Procedure Trucks and Buses
2004 SAE J1505-2004 Brake Force Distribution Test ProcedureTrucks and Buses
1995 SAE J1505-1995 (R) Brake Force Distribution Test Code - Commercial Vehicles, Recommended Practice April 1995
1985 SAE J1505-1985 Brake Force Distribution Test code - Commercial Vehicles