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Automotive Aerodynamics Standard

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Standard

Abrasion Resistance Testing - Vehicle Exterior Graphics and Pin Striping
2021-01-07
CURRENT
J1847_202101
This SAE Recommended Practice applies to the abrasion resistance testing of decorative tapes, graphics, and pin striping. It may also have relevance to certain vehicle labels and plastic wood grain film. The resistance to abrasive damage is judged qualitatively by its effect on the legibility, pattern, and color of the graphic marking. This recommended practice is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering the use of this recommended practice.
Standard

ABRASION RESISTANCE TESTING—VEHICLE EXTERIOR GRAPHICS AND PIN STRIPING
1989-06-01
HISTORICAL
J1847_198906
This SAE Recommended Practice applies to the abrasion resistance testing of decorative tapes, graphics, and pin striping. It may also have relevance to certain vehicle labels and plastic wood grain film. The resistance to abrasive damage is judged qualitatively by its effect on the legibility, pattern, and color of the graphic marking. This recommended practice is intended as a guide toward standard practice but may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering the use of this recommended practice.
Standard

Definition and Measurement of Torque Biasing Differentials
2019-08-26
CURRENT
J2817_201908
This SAE Recommended Practice covers passive torque biasing axle and center differentials used in passenger car and light truck applications. Differentials are of the bevel gear, helical gear, and planetary types, although other configurations are possible.
Standard

Measurement of Aerodynamic Performance for Mass-Produced Cars and Light-Duty Trucks
2019-10-09
CURRENT
J2881_201910
This Recommended Practice provides a procedure for measuring and documenting the aerodynamic performance in a full-scale wind tunnel of passenger vehicles, i.e., mass-produced cars and light-duty trucks intended primarily for individual consumers. Testing or numerical modeling of pre-production and/or reduced-scale models is outside the scope of this document. Aerodynamic development procedures, i.e., methods to improve or optimize aerodynamic performance, are also excluded. It is well-known that aerodynamic performance results depend significantly on vehicle content and loading, as well as the wind tunnel itself (type, scale, and simulation qualities of the wind tunnel). Publication of non-standard test results causes unnecessary additional development work and incorrect perception of a vehicle’s anticipated aerodynamic performance by government, academia, and the general public.
Standard

Rolling Resistance Measurement Procedure for Highway Truck and Bus Tires
2020-11-12
CURRENT
J1379_202011
This recommended practice applies to the laboratory measurement of the rolling resistance of pneumatic tires designed primarily for use on trucks and buses in normal highway service, as defined by the Tire and Rim Association, Inc. (TRA); it does not include light truck tires (designated LT). The procedure applies only to straight, free-rolling tires under steady-state operation and includes the following three basic methods:
Standard

ROLLING RESISTANCE MEASUREMENT PROCEDURE FOR HIGHWAY TRUCK AND BUS TIRES
1983-08-01
HISTORICAL
J1379_198308
This recommended practice applies to the laboratory measurement of the rolling resistance of pneumatic tires designed primarily for use on trucks and buses in normal highway service, as defined by the Tire and Rim Association. Inc. (TRA): it does not include light truck tires (designated LT). The procedure applies only to straight, free-rolling tires under steady-state operation and includes the following three basic methods:
Standard

Seals—Evaluation of Elastohydrodynamic
2000-10-09
HISTORICAL
J1002_200010
This SAE Information Report is a review of test methods that have been used to evaluate elastomeric hydrodynamic seals. The advantages and disadvantages of each method are discussed. There are ten methods total which include three suggested methods. For those interested in more detailed information on hydrodynamic sealing systems, see 2.2.
Standard

One-Way Clutches - Nomenclature and Terminology
2011-08-12
HISTORICAL
J1087_201108
The definitions and illustrations in this SAE Recommended Practice are intended to establish common nomenclature and terminology for automotive transmission one-way clutches.
Standard

One-Way Clutches - Nomenclature and Terminology
2019-07-24
CURRENT
J1087_201907
The definitions and illustrations in this SAE Recommended Practice are intended to establish common nomenclature and terminology for automotive transmission one-way clutches.
Standard

ONE-WAY CLUTCHES - NOMENCLATURE AND TERMINOLOGY
1990-10-01
HISTORICAL
J1087_199010
The definitions and illustrations in this SAE Information Report are intended to establish common nomenclature and terminology for automotive transmission one-way clutches.
Standard

One-Way Clutches—Nomenclature and Terminology
2000-05-16
HISTORICAL
J1087_200005
The definitions and illustrations in this SAE Information Report are intended to establish common nomenclature and terminology for automotive transmission one-way clutches.
Standard

ONE-WAY CLUTCHES—NOMENCLATURE AND TERMINOLOGY
1984-01-01
HISTORICAL
J1087_198401
The definitions and illustrations in this report are intended to establish common nomenclature and terminology for automotive transmission one-way clutches.
Standard

TRAVEL PERFORMANCE AND RATING PROCEDURE, CRAWLER MOUNTED HYDRAULIC EXCAVATORS, MATERIAL HANDLERS, KNUCKLE BOOM LOG LOADERS, AND CERTAIN FORESTRY EQUIPMENT
1996-06-01
HISTORICAL
J1309_199606
This SAE Standard describes a uniform method to calculate and specify travel performance characteristics of hydraulic excavators, material handlers, knuckle boom log loaders, delimbers, feller bunchers, harvesters, processors, and other knuckle boom material handlers. It establishes definitions and specifies machine conditions for calculations and tests. This document applies to crawler mounted machines such as hydraulic excavators as defined in SAE J1057 and ISO 7135, and knuckle boom log loaders as defined in SAE J1209 and SAE J2055. This document also applies to certain forestry equipment defined in SAE J1209 and ISO 6814 that have crawler mountings such as delimbers, feller bunchers, harvesters, and processors. Included in the definition of hydraulic excavators are also front shovel, clamshell, and telescoping boom excavators.
Standard

THE MEASUREMENT OF PASSENGER CAR TIRE ROLLING RESISTANCE
1984-06-01
HISTORICAL
J1270_198406
The force, torque, and power methods of measurement are all in common use and should yield the same test results. Effects of steering, traction, and non-steady-state tire operations are excluded from the recommended practice because they are still in the research stage.
Standard

THE MEASUREMENT OF PASSENGER AND LIGHT TRUCK ROLLING RESISTANCE
1985-11-01
HISTORICAL
J1270_198511
The force, torque, and power methods of measurement are all in common use and should yield the same test results. Effects of steering, traction, surface texture, and non-steady-state tire operations are excluded from the Recommended Practice because they are still in the research stage.
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