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Brake Rating Power Requirements - Truck and Bus

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J257_201907
  • Current
Published 2019-07-18 by SAE International in United States

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:

 

Off-Vehicle Brake Testing for Service Brakes Over 10000 Pounds GVW Air, Hydraulic, and Mechanical Actuation

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J2806_201901
  • Current
Published 2019-01-14 by SAE International in United States
Subject document is specifically intended for service brakes and service brakes when used for parking and/or emergency brakes (only) that are commonly used for automotive-type, ground-wheeled vehicles exceeding 4536 kg (10000 pounds) gross vehicle weight rating (GVWR). Subject specification provides the off-vehicle procedures, methods, and processes used to objectively determine suitability of tactical and combat ground-wheeled vehicle brake systems and selected secondary-item brake components (aka, aftermarket or spare parts), including brake “block” for commercial applications only, specifically identified within subject document. Subject specification is primarily based on known industry and military test standards utilizing brake inertia dynamometers. Targeted vehicles and components include, but may not be limited to, the following: a Civilian, commercial, military, and militarized-commercial ground-wheeled vehicles such cargo trucks, vocational vehicles, truck tractors, trailers, and specialized support and engineering equipment under the generic heading of ground vehicle “dry” brake systems (GVDBS). b Hydraulic, air, and mechanical “dry” disc brake and drum brake systems, when used as service brakes, including service brakes (only), when used as emergency and/or parking brakes. c Hydraulic, air, and…
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Trailer Grade Parking Performance Test Procedure

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J1452_201811
  • Current
Published 2018-11-12 by SAE International in United States
This SAE Recommended Practice establishes methods to determine grade parking performance with respect to: a Ability of the parking brake system to lock the braked wheels. b The trailer holding or sliding on the grade, fully loaded, or unloaded. c Applied manual effort. d Unburnished or burnished brake lining friction conditions. e Down and upgrade directions.
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Summary of Stop Lamp-Related Federal Motor Vehicle Safety Standards and NHTSA Interpretations, Relative to ATC, Stability Control Interventions, Engine Retarders/Exhaust Brakes

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J2963_201810
  • Current
Published 2018-10-02 by SAE International in United States
Provide previous stop light activation research into single document for future reference. Relevant documents and interpretations noted in Table 1.
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Truck and Bus Grade Parking Performance Requirements

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J293_201706
  • Current
Published 2017-06-05 by SAE International in United States
This SAE Recommended Practice establishes minimum performance requirements for trucks, buses, truck-tractors, full trailers, and semitrailers with gross vehicle weight ratings greater than 4540 kg (10 000 lb) with regard to: a Vehicle classification b Vehicle load c Percent grade d Application force
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Recommended Practice for Braking, Stability, and Control Performance Test Procedure for Air-Brake-Equipped Trucks and Buses

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J1626/2_201701
  • Current
Published 2017-01-05 by SAE International in United States
This Recommended Practice provides a road test procedure for trucks and buses, to evaluate their compliance with Federal Motor Vehicle Safety Standard (FMVSS) 121; Air Brake Systems. Units of measure are English in lieu of metric to be consistent with FMVSS 121.
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Identification and Installation of Air Brake System Components

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J2580_201611
  • Current
Published 2016-11-01 by SAE International in United States
This Recommended Practice covers air braked trucks, truck-tractors, trailers and buses. It enumerates the identification and installation of the air brake components not covered in other SAE recommended practices and standards.
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Heavy Vehicle Controls Prioritization and Conflict Resolution

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J3081_201504
  • Current
Published 2015-04-10 by SAE International in United States
This document is written to address acceleration and deceleration control issues related to Heavy Duty Trucks and Buses greater than 10 000 GVW.
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Test Procedure for Trailer Air Reservoir Fill and Parking Brake Release Times

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J2378_201411
  • Current
Published 2014-11-20 by SAE International in United States
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.
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Test Procedure for Air Supply of Truck-Tractors and Towing Trucks

Truck and Bus Brake Systems Committee
  • Ground Vehicle Standard
  • J2377_201411
  • Current
Published 2014-11-11 by SAE International in United States
This SAE Recommended Practice (RP) provides test procedures for air braked trucks and truck-tractors used to tow single and multiple trailer combinations on highways. This RP is not intended for off-highway applications.
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