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Standard

Brake Rating Power Requirements - Truck and Bus

2019-07-18
CURRENT
J257_201907
The minimum performance values in this SAE Recommended Practice are applicable to vehicles with brake systems having typical service pressure ranges 0 to 16.6 MPa (0 to 2400 psi) hydraulic or 0 to 945 kPa (0 to 135 psi) air only. SAE J880 not only provides for determining maximum brake rating power capability, but also permits verification of any desired or arbitrary level such as the requirement established herein. The determining criteria for deciding brake rating power capability are: a. Cold brake stopping ability. b. Fade as a result of brake power absorption. c. Hot brake stopping ability following brake power absorption. d. Brake system stability following brake power absorption. e. Functional and structural integrity of brake system following test.
Standard

Anti-Lock Brake System (Abs) Road Test Evaluation Procedure for Trucks, Truck-Tractors and Buses

2002-02-07
HISTORICAL
J2536_200202
Test procedure for Anti-Lock brake system (ABS/Anti-Lock) performance for on-highway commercial vehicles over 4536 kg (10 000 lb). This test procedure is intended to determine vehicle stability, maneuverability, stopping capability and system function on various road surface conditions including variable and uniform friction surfaces while brakes are modulated to obtain maximum performance with activation of ABS/Anti-Lock. This procedure does not cover radio frequency interference or power consumption testing. Reference SAE J46 Wheel-Slip Brake Control Road Test Code for passenger car and light truck test procedure.
Standard

Drawbar Pull Performance Criteria

2012-05-24
CURRENT
J2503_201205
This SAE Performance Criteria code applies to vehicles that are tested in accordance with SAE J1729 and SAE J1626.
Standard

Test Procedure for Trailer Air Reservoir Fill and Parking Brake Release Times

2003-07-07
HISTORICAL
J2378_200307
This SAE Recommended Practice provides instructions and test procedures for air braked trailers and dollies used in single and multiple trailer combinations on highway. This document is not intended for off-highway application. Purpose This document provides a method of determining the efficiency of trailer and dolly air supply systems in filling reservoirs and, for those with spring applied parking brakes, in releasing parking brakes.
Standard

Test Procedure for Trailer Air Reservoir Fill and Parking Brake Release Times

2010-08-18
HISTORICAL
J2378_201008
This SAE Recommended Practice provides instructions and test procedures for air braked trailers and dollies used in single and multiple trailer combinations on highway. This document is not intended for off-highway application. Purpose This document provides a method of determining the efficiency of trailer and dolly air supply systems in filling reservoirs and, for those with spring applied parking brakes, in releasing parking brakes.
Standard

Brake System Rating Test Code-Commercial Vehicles

2017-10-13
WIP
J880
This code is intended for commercial vehicles over 4500 kg (10 000 lb) with brake systems having typical service pressure ranges 0 to 14.1 mPa (0 to 2050 psi) hydraulic or 0 to 830 kPa (0 to 130 psi) air and is not directly applicable to vehicles with other systems. Air over hydraulic systems are to be tested as air systems.
Standard

Brake System Rating Test Code - Commercial Vehicles

2011-10-05
CURRENT
J880_201110
This code is intended for commercial vehicles over 4500 kg (10 000 lb) with brake systems having typical service pressure ranges 0 to 14.1 mPa (0 to 2050 psi) hydraulic or 0 to 830 kPa (0 to 130 psi) air and is not directly applicable to vehicles with other systems. Air over hydraulic systems are to be tested as air systems.
Standard

In-Service Brake Performance Test Procedure--Vehicles Over 4500 kg (10 000 lb)

1980-02-01
HISTORICAL
J1250_198002
This SAE Recommended Practice establishes a uniform practical series of subprocedures for level road testing of the brake performance of vehicles with gross vehicle weight ratings over 4500 kg (10 000 lb). The purpose of this practice is to establish a uniform method for use by operators and law enforcement agencies, to evaluate the condition of the brake systems of vehicles with GVWRs and GCWRs over 4500 kg (10 000 lb) under any condition of loading. By following the test procedures set forth, the operator and/or law enforcement agencies can ascertain if the vehicle meets the service brake and emergency brake stopping distance requirements of applicable State and Federal regulations.
Standard

In-Service Brake Performance Test Procedure--Vehicles Over 4500 kg (10 000 lb)

2000-09-29
CURRENT
J1250_200009
This SAE Recommended Practice establishes a uniform practical series of subprocedures for level road testing of the brake performance of vehicles with gross vehicle weight ratings over 4500 kg (10 000 lb). The purpose of this practice is to establish a uniform method for use by operators and law enforcement agencies, to evaluate the condition of the brake systems of vehicles with GVWRs and GCWRs over 4500 kg (10 000 lb) under any condition of loading. By following the test procedures set forth, the operator and/or law enforcement agencies can ascertain if the vehicle meets the service brake and emergency brake stopping distance requirements of applicable State and Federal regulations.
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