J1505_201107: Brake Force Distribution Test Procedure - Trucks and Buses

Features

Issuing Committee: Truck and Bus Brake Systems Committee

Scope

Content

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:

a
Instrumentation and equipment
b
Vehicle preparation
c
Calculating distribution of brake force

Rationale

Content: New stopping distance regulations will require a shift in brake force distribution. In addition, new types of brakes such as air disc have different pressure onset and torque output characteristics that can effect low pressure brake force distribution. This procedure therefore will become a more important tool for measuring and comparing brake force distribution on trucks and buses. Experience with the original procedure has shown that test organizations using it would benefit from changes in data recording and safety procedures.

Meta Tags

Topics: Test procedures
Commercial vehicles
Brake torque
Brake linings
Trailers
Air brakes
Brake lines
Axles
Braking systems

Details

DOI: https://doi.org/10.4271/J1505_201107

Pages: 12

Citation: SAE International Recommended Practice, Brake Force Distribution Test Procedure - Trucks and Buses, SAE Standard J1505_201107, Revised July 2011, Issued May 1985, https://doi.org/10.4271/J1505_201107.

Additional Details