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HISTORICAL
2001-08-03
Standard
J923_200108
This SAE Recommended Practice outlines basic nomenclature in common use for truck and bus drive axle designs. Over a period of years there have been many different designs introduced; however, for this report, only the most common have been selected and only their general construction is illustrated to show the nomenclature of the various parts.
CURRENT
2012-07-02
Standard
J923_201207
This SAE Recommended Practice outlines basic nomenclature in common use for truck and bus drive axle designs. Over a period of years there have been many different designs introduced; however, for this report, only the most common have been selected and only their general construction is illustrated to show the nomenclature of the various parts.
CURRENT
1996-02-01
Standard
J1667_199602
This SAE Recommended Practice applies to vehicle exhaust smoke measurements made using the Snap-Acceleration test procedure. Because this is a non-moving vehicle test, this test can be conducted along the roadside, in a truck depot, a vehicle repair facility, or other test facilities. The test is intended to be used on heavy-duty trucks and buses powered by diesel engines. It is designed to be used in conjunction with smokemeters using the light extinction principle of smoke measurement. This procedure describes how the snap-acceleration test is to be performed. It also gives specifications for the smokemeter and other test instrumentation and describes the algorithm for the measurement and quantification of the exhaust smoke produced during the test. Included are discussions of factors which influence snap-acceleration test results and methods to correct for these conditions.
CURRENT
2012-07-02
Standard
J1621_201207
This SAE Recommended Practice has been adopted by SAE to specify: A basis for net engine retarder power rating Reference inlet air test conditions A method for correcting observed engine retarder power to reference conditions A method for determining net engine retarder power with a dynamometer
HISTORICAL
2005-12-12
Standard
J1621_200512
This SAE Recommended Practice has been adopted by SAE to specify: a. a basis for net engine retarder power rating; b. reference inlet air test conditions; c. a method for correcting observed engine retarder power to reference conditions; and d. a method for determining net engine retarder power with a dynamometer.
CURRENT
2002-07-23
Standard
J1929_200207
HISTORICAL
1963-06-01
Standard
J688_196306
The procedure has been developed to provide a practical method for the prediction of truck performance using accepted data. It Is designed to help anyone concerned with the problem of truck selection. By following directions, it is possible to determine the necessary information for intelligent truck selection without being concerned with the origin or derivation of the complex factors involved. With readily available specification of a truck, information provided in the tables, and minimum of calculation, it is possible to predict: (a) The performance obtainable from a truck of given characteristics under given operating conditions. (b) The characteristics required in a truck to meet different performance requirements under given operating conditions. This report comprises a procedure form and 10 tables of data.
CURRENT
1997-02-01
Standard
J688_199702
The procedure has been developed to provide a practical method for the prediction of truck performance using accepted data. It Is designed to help anyone concerned with the problem of truck selection. By following directions, it is possible to determine the necessary information for intelligent truck selection without being concerned with the origin or derivation of the complex factors involved. With readily available specification of a truck, information provided in the tables, and minimum of calculation, it is possible to predict: (a) The performance obtainable from a truck of given characteristics under given operating conditions. (b) The characteristics required in a truck to meet different performance requirements under given operating conditions. This report comprises a procedure form and 10 tables of data.
HISTORICAL
1987-08-01
Standard
J688_198708
The procedure has been developed to provide a practical method for the prediction of truck performance using accepted data. It Is designed to help anyone concerned with the problem of truck selection. By following directions, it is possible to determine the necessary information for intelligent truck selection without being concerned with the origin or derivation of the complex factors involved. With readily available specification of a truck, information provided in the tables, and minimum of calculation, it is possible to predict: (a) The performance obtainable from a truck of given characteristics under given operating conditions. (b) The characteristics required in a truck to meet different performance requirements under given operating conditions. This report comprises a procedure form and 10 tables of data.
CURRENT
2001-04-25
Standard
J2548_200104
This SAE Recommended Practice applies to all forms of diesel and natural gas engines fueled by the combination of diesel fuel and natural gas.
HISTORICAL
1994-04-01
Standard
J2245_199404
This SAE Recommended Practice provides general guidelines for measuring the splash and spray produced by vehicles operating over wet pavements. The guidelines describe both the video images and contrast measurements between black and white checkerboards when a spray cloud is superimposed on them as a means of measuring the obscuring spray. The laster method uses laser transmittance through the spray cloud as the means of measurement. It is left to the users of this practice to decide which method is best suited to their needs. There is no implied relationship between these two method, although it is expected that the ranking of relative spray reduction between test vehicle configurations would be approximately the same. All sections listed in this document are to be considered as common to both methods, unless otherwise noted. There are complex interactions of variables that affect splash and spray, and by its nature, it is very chaotic, turbulent phenomenon.
HISTORICAL
2000-11-02
Standard
J1540_200011
Because of the intense focus on fuel economy and fuel emission standards, it has become imperative to optimize vehicle drivetrains. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies a test procedure which maps torque transmittal efficiency and parasitic losses for manual transmissions. The application of this document is intended for manual transmissions used in light (class 4) through heavy truck applications with both simple and compound ratio structures. This document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine the overall transmission efficiency. This test is used to evaluate all forward gears; testing in reverse is optional.
CURRENT
2012-11-09
Standard
J1540_201211
Because of the intense focus on fuel economy and fuel emission standards, it has become imperative to optimize vehicle drivetrains. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies a test procedure which maps torque transmittal efficiency and parasitic losses for manual transmissions. The application of this document is intended for manual transmissions used in light (class 4) through heavy truck applications with both simple and compound ratio structures. This document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine the overall transmission efficiency. This test is used to evaluate all forward gears; testing in reverse is optional.
HISTORICAL
1992-04-01
Standard
J1540_199204
Because of the intense focus on fuel economy and fuel emission standards, it has become imperative to optimize vehicle drivetrains. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency. This SAE Recommended Practice specifies a test procedure which maps torque transmittal efficiency and parasitic losses for manual transmissions. The application of this document is intended for manual transmissions used in light (class 4) through heavy truck applications with both simple and compound ratio structures. This document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine the overall transmission efficiency. This test is used to evaluate all forward gears; testing in reverse is optional.
CURRENT
2015-04-15
Standard
J2455_201504
Product for which data is to be available is for class 6 and larger, i.e., gross vehicle weight > 9.6 kg (19 500 lb).
HISTORICAL
1998-01-01
Standard
J2455_199801
The product for which data is to be available is for class 6 and larger, i.e., gross vehicle weight ≻ 9.6 kg (19500 lb). The objective is to establish a set of data requirements which powertrain component suppliers would have readily available to facilitate drivetrain system vibration compatibility and control studies.
CURRENT
2012-07-02
Standard
J2458_201207
This SAE Recommended Practice has been adopted by SAE to specify: A basis for net engine retarder power rating Reference inlet air test conditions A method for correcting observed engine retarder power to reference conditions A method for determining net engine retarder power with a dynamometer
HISTORICAL
1998-07-01
Standard
J2458_199807
This SAE Recommended Practice has been adopted by SAE to specify: a. A basis for net engine retarder power rating; b. Reference inlet air test conditions; c. A method for correcting observed engine retarder power to reference conditions; d. A method for determining net engine retarder power with a dynamometer. This test code document is applicable to engine exhaust retarders on four-stroke compression ignition (CI), with and without charge air cooling. This document does not apply to aircraft, marine, spark ignition (SI), two-stroke compression ignition (CI) or mechanical super-charged ignition engines, compression release retarders, or combination exhaust and compression release retarders.
2017-06-22
WIP Standard
J2711/2
This SAE Recommended Practice was established to provide an accurate, uniform and reproducible procedure for simulating use of MD/HD conventional vehicles and hybrid-electric vehicles (HEVs), as well as plug-in hybrid-electric vehicles (PHEVs) and battery electric vehicles (BEVs) on powertrain dynamometers for the purpose of measuring emissions and fuel economy. This document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, PM, CO2), as that decision will depend on the objectives of the tester. While the main focus of this procedure is for calculating fuel and energy consumption, it is anticipated that emissions may also be recorded during execution of this procedure. It should be noted that most MD/HD powertrains addressed in this document would be powered by engines that are certified separately for emissions. The engine certification procedure appears in the Code of Federal Regulations, Title 40-§86 and §1065.
CURRENT
2000-05-01
Standard
J1489_200005
The procedure covers the estimation of the total retardation capability available to a specific vehicle from: Natural retardation (rolling resistance, aerodynamic drag, etc). Engine drag Engine, integral automatic transmission, driveline or trailer-axle retarders It assumes that foundation brakes are not used for maintaining speed on long mountain descents. Retardation is rated in terms of the maximum grades on which stable control speeds can be maintained for each gear over the range of highway speeds appropriate to that gear. For each gear, the calculation procedure determines maximum grades for at least four values of control speed ranging from the vehicle velocity corresponding to full load governed engine rpm, to the vehicle velocity corresponding to the engine rpm at minimum (idle) speed. In addition, the calculation procedure provides information on the total retarding power available for each gear.
CURRENT
2012-11-09
Standard
J1479_201211
This SAE Standard describes the terms or names of the parts, characteristics, and parameters of automotive pull-type clutches used in trucks, and of vehicle apparatus or components related to the pull-type clutch.
HISTORICAL
1985-01-01
Standard
J1479_198501
This SAE Standard describes the terms or names of the parts, characteristics, and parameters of automotive pull-type clutches used in trucks, and of vehicle apparatus or components related to the pull-type clutch.
HISTORICAL
1999-09-21
Standard
J1479_199909
This SAE Standard describes the terms or names of the parts, characteristics, and parameters of automotive pull-type clutches used in trucks, and of vehicle apparatus or components related to the pull-type clutch.
CURRENT
2011-07-08
Standard
J2699_201107
This SAE Information Report applies to liquefied natural gas used as vehicle fuel and requires LNG producers to provide the required information on the fuel composition and its “dispense by” date.
CURRENT
1998-11-06
Standard
J690_199811
[In the report of the SAE Motor Truck Rating Committee on Ability Ratings published in the January 1940 issue of the SAE Journal, it was recommended that pounds per certified net brake horsepower delivered to the clutch or its equivalent be used as the index of the potential ability of a motor truck or combination. This report defined the term "certified net brake horsepower" in detail and recommended that certain data be provided to support the certification. The accompanying forms provide a method for the presentation of the data specified.]
HISTORICAL
1965-02-01
Standard
J690_196502
[In the report of the SAE Motor Truck Rating Committee on Ability Ratings published in the January 1940 issue of the SAE Journal, it was recommended that pounds per certified net brake horsepower delivered to the clutch or its equivalent be used as the index of the potential ability of a motor truck or combination. This report defined the term "certified net brake horsepower" in detail and recommended that certain data be provided to support the certification. The accompanying forms provide a method for the presentation of the data specified.]
HISTORICAL
1988-06-01
Standard
J687_198806
CURRENT
2000-08-31
Standard
J1343_200008
This report is intended to provide the information to estimate the accessory load of a typical heavy truck or bus. The components covered include: air compressors, alternators, refrigerant compressors, engine cooling fans and power steering pumps. The values show an estimate of the average power requirements and duty cycles for these accessories. This report does not address loads required for engine operation. Required systems include those needed for engine performance such as fuel pumps and electronic control modules (ECM).
HISTORICAL
1981-07-01
Standard
J1343_198107
This report is intended to provide the information to estimate the accessory load of a typical heavy truck or bus. The components covered include: air compressors, alternators, refrigerant compressors, engine cooling fans and power steering pumps. The values show an estimate of the average power requirements and duty cycles for these accessories. This report does not address loads required for engine operation. Required systems include those needed for engine performance such as fuel pumps and electronic control modules (ECM).
HISTORICAL
1993-09-01
Standard
J2179_199309
The procedure applies to heavy vehicles weighing more than 11 800 kg (26 000 lb) and particularly to those vehicles having two or more articulation joints that allow rotation in a horizontal plane. The procedure pertains to the lateral directional response of multi-articulated vehicles in avoidance maneuvers performed at highway speeds without braking. This test procedure is intended to be used for determining the rearward amplification and dynamic offtracking qualities of multi-trailer commercial vehicles (heavy trucks and buses).
Viewing 1 to 30 of 90

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