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Control systems Trucks Accident types Truck and Bus Foundation Brake Committee

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Standard

Service Brake Structural Integrity Requirements—Truck and Bus
2023-12-07
CURRENT
J1404_202312
This SAE Recommended Practice presents requirements for the structural integrity of the brake system of all new trucks, buses, and combinations of vehicles designed for roadway use and falling into the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination Vehicles—Towing vehicle over 4500 kg (10 000 lb) GVWR The requirements are based on data obtained from SAE J294.
Standard

Service Brake Structural Integrity Test Procedure - Vehicles Over 4500 kg (10000 pounds) GVWR
2021-12-13
CURRENT
J294_202112
This SAE Recommended Practice establishes a method of testing the structural integrity of the brake system of all new trucks, buses, and combination vehicles designed for roadway use and falling in the following classifications: a Truck and bus: Over 4500 kg (10000 pounds) GVWR b Combination vehicle: Towing vehicle over 4500 kg (10000 pounds) GVWR The test consists of two distinct tests: a structural endurance test followed by a structural ultimate strength test. NOTE: These two tests originated from separate procedures, and were combined in this recommended practice. Each test can be considered to be an independent evaluation of the service brake’s structure. Based on time available, cost limitations, and the desired evaluation and historical data available, either of these tests could be considered as a complete evaluation of the brake’s structure.
Standard

Air Brake Performance and Wear Test Code Commercial Vehicle Inertia Dynamometer
2020-08-20
CURRENT
J2115_202008
This SAE Standard provides test procedures for air and air-over-hydraulic disc or drum brakes used for on-highway commercial vehicles over 4536 kg (10000 pounds) GVWR. This recommended practice includes the pass/fail criteria of Federal Motor Vehicle Safety Standard No. TP-121D-01.
Standard

Brake Effectiveness Marking for Brake Blocks - Truck and Bus
2019-06-06
CURRENT
J1801_201906
This SAE Recommended Practice provides the method to assign numerical values of brake effectiveness, using data from single station inertia dynamometer effectiveness tests, and to identify a uniform procedure to mark these values on the edge of brake blocks in excess of 12.7 mm (0.51 in) in thickness.
Standard

Service Brake Structural Integrity Requirements—Truck and Bus
2019-04-24
HISTORICAL
J1404_201904
This SAE Recommended Practice presents requirements for the structural integrity of the brake system of all new trucks, buses, and combinations of vehicles designed for roadway use and falling into the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination Vehicles—Towing vehicle over 4500 kg (10 000 lb) GVWR The requirements are based on data obtained from SAE J294.
Standard

Service Brake Structural Integrity Requirements—Truck and Bus
2014-11-15
HISTORICAL
J1404_201411
This SAE Recommended Practice presents requirements for the structural integrity of the brake system of all new trucks, buses, and combinations of vehicles designed for roadway use and falling into the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination Vehicles—Towing vehicle over 4500 kg (10 000 lb) GVWR The requirements are based on data obtained from SAE J294.
Standard

Brake Effectiveness Marking for Brake Blocks—Truck and Bus
2014-10-27
HISTORICAL
J1801_201410
This SAE Recommended Practice provides the method to assign numerical values of brake effectiveness, using data from single station inertia dynamometer effectiveness tests, and to identify a uniform procedure to mark these values on the edge of brake blocks in excess of 12.7 mm (0.51 in) in thickness.
Standard

Brake Block Chamfer
2011-05-17
CURRENT
J662_201105
The scope of this SAE Standard is to provide a uniform chamfer on brake blocks.
Standard

Service Brake Structural Integrity Requirements—Truck and Bus
2007-05-17
HISTORICAL
J1404_200705
This SAE Recommended Practice presents requirements for the structural integrity of the brake system of all new trucks, buses, and combinations of vehicles designed for roadway use and falling into the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination Vehicles—Towing vehicle over 4500 kg (10 000 lb) GVWR The requirements are based on data obtained from SAE J294.
Standard

SERVICE BRAKE STRUCTURAL INTEGRITY TEST PROCEDURE—VEHICLES OVER 4500 KG (10 000 LB) GVWR
1993-01-01
HISTORICAL
J294_199301
This SAE Recommended Practice establishes a method of testing the structural integrity of the brake system of all new trucks, buses, and combination vehicles designed for roadway use and falling in the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination vehicle—Towing vehicle over 4500 kg (10 000 lb) GVWR The test consists of two parts: a Structural Endurance Test followed by a Structural Ultimate Strength Test.
Standard

SERVICE BRAKE STRUCTURAL INTEGRITY TEST PROCEDURE—VEHICLES OVER 10,000 LB (4500 kg) GVWR
1978-03-01
HISTORICAL
J294_197803
This SAE Recommended Practice establishes a method of evaluating the structural integrity of the brake system of all new trucks, buses, and combination of vehicles designed for roadway use and falling in the following classifications: Truck and bus: Over 10,000 lb (4500 kg) gvwr. Combination of Vehicles: Towing vehicle over 10,000 lb (4500 kg) gvwr.
Standard

BRAKE RATING TEST CODE – COMMERCIAL VEHICLE INERTIA DYNAMOMETER
1966-09-01
HISTORICAL
J971_196609
The code provides test procedures and methods of calculating a brake rating from the data obtained. At this time, the procedure has been developed to cover only brakes of the sizes and types generally used on commercial vehicles. Some general correlation may be expected between brake ratings established by this means and those obtained from vehicle tests such as outlined in SAE J880. However, the effects of brake environment as installed in various vehicles are not considered in this laboratory procedure. The code may be used as a supplement to SAE J667, or it may be used independently. Other methods of measuring energy absorption capacity and establishing a brake rating other than those described herein may be equally valid.
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