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Standard

SAE Cold Start and Driveability Procedure

1998-08-01
HISTORICAL
J1635_199808
To subjectively evaluate engine starting behavior and driveability characteristics of a motor vehicle which has been soaked at ambient temperature for a given time period after attaining a stabilized engine coolant temperature. This SAE Recommended Practice also defines driveability defects and the rating system. This evaluation may be affected by ambient temperature, altitude, fuel, and the road system. The vehicle should be evaluated with all fuels recommended by the manufacturer. A partial list comprises reformulated gasoline, ethanol/gasoline and methanol/gasoline blends of various proportions, diesel #1, and diesel #2.
Standard

Road Load Measurement Using Onboard Anemometry and Coastdown Techniques

2014-02-25
WIP
J2263
This SAE Recommended Practice establishes a procedure for determination of vehicle road load force for speeds between 115 and 15 km/h (71.5 and 9.3 mph). It employs the coastdown method and applies to vehicles designed for on-road operation. The final result is a model of road load force (as a function of speed) during operation on a dry, level road under reference conditions of 20°C (68°F), 98.21 kPa (29.00 in-Hg), no wind, no precipitation, and the transmission in neutral.
Standard

Road Load Measurement Using Onboard Anemometry and Coastdown Techniques

2008-12-12
CURRENT
J2263_200812
This SAE Recommended Practice establishes a procedure for determination of vehicle road load force for speeds between 115 and 15 km/h (71.5 and 9.3 mi/h). It employs the coastdown method and applies to vehicles designed for on-road operation. The final result is a model of road load force (as a function of speed) during operation on a dry, level road under reference conditions of 20 °C (68 °F), 98.21 kPa (29.00 in-Hg), no wind, no precipitation, and the transmission in neutral.
Standard

Recommended Practice for Measuring the Exhaust Emissions and Fuel Economy of Hybrid-Electric Vehicles, Including Plug-in Hybrid Vehicles

2017-12-07
WIP
J1711
This Society of Automotive Engineers (SAE) Recommended Practice establishes uniform chassis dynamometer test procedures for hybrid-electric vehicles (HEVs) that are designed to be driven on public roads. The procedure provides instructions for measuring and calculating the exhaust emissions and fuel economy of HEVs driven on the Urban Dynamometer Driving Schedule (UDDS) and the Highway Fuel Economy Driving Schedule (HFEDS), as well as the exhaust emissions of HEVs driven on the US06 Driving Schedule (US06) and the SC03 Driving Schedule (SC03). However, the procedures are structured so that other driving schedules may be substituted, provided that the corresponding preparatory procedures, test lengths, and weighting factors are modified accordingly. Furthermore, this document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, CO2); instead, that decision will depend on the objectives of the tester.
Standard

Fuel Economy Measurement--Road Test Procedure--Cold Start and Warm-Up Fuel Economy

1980-06-01
HISTORICAL
J1256_198006
This procedure is a modification of the urban driving cycles noted in SAE J1082 and which is run on a suitable road or test track. The procedure yields cold start/warm-up fuel economy values indicative of consumer level at the ambient condition of the test. Within referenced limitations, the procedure can be utilized to determine the fuel economy differential among vehicles or between vehicle changes. Purpose This SAE Recommended Practice provides a uniform test procedure for measuring the fuel economy of light-duty vehicles during cold start and warm-up operation (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg GVW (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement--Road Test Procedure--Cold Start and Warm-Up Fuel Economy

1979-05-01
HISTORICAL
J1256_197905
This procedure is a modification of the urban driving cycles noted in SAE J1082 and which is run on a suitable road or test track. The procedure yields cold start/warm-up fuel economy values indicative of consumer level at the ambient condition of the test. Within referenced limitations, the procedure can be utilized to determine the fuel economy differential among vehicles or between vehicle changes. Purpose This SAE Recommended Practice provides a uniform test procedure for measuring the fuel economy of light-duty vehicles during cold start and warm-up operation (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg GVW (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement--Road Test Procedure--Cold Start and Warm-Up Fuel Economy

1988-10-01
HISTORICAL
J1256_198810
This procedure is a modification of the urban driving cycles noted in SAE J1082 and which is run on a suitable road or test track. The procedure yields cold start/warm-up fuel economy values indicative of consumer level at the ambient condition of the test. Within referenced limitations, the procedure can be utilized to determine the fuel economy differential among vehicles or between vehicle changes. Purpose This SAE Recommended Practice provides a uniform test procedure for measuring the fuel economy of light-duty vehicles during cold start and warm-up operation (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg GVW (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement--Road Test Procedure--Cold Start and Warm-Up Fuel Economy

2002-10-25
CURRENT
J1256_200210
This procedure is a modification of the urban driving cycles noted in SAE J1082 and which is run on a suitable road or test track. The procedure yields cold start/warm-up fuel economy values indicative of consumer level at the ambient condition of the test. Within referenced limitations, the procedure can be utilized to determine the fuel economy differential among vehicles or between vehicle changes. Purpose This SAE Recommended Practice provides a uniform test procedure for measuring the fuel economy of light-duty vehicles during cold start and warm-up operation (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg GVW (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement Road Test Procedure

1974-04-01
HISTORICAL
J1082_197404
This SAE Standard incorporates driving cycles that produce fuel consumption data relating to Urban, Suburban, and Interstate driving patterns and is intended to be used to determine the relative fuel economy among vehicles and driving patterns under warmed-up conditions on test tracks, suitable roads, or chassis dynamometers. The urban driving cycle forms the basis of a Cold-Start Test Procedure described in SAE J1256. Purpose This document provides uniform testing procedures for measuring the fuel economy of light-duty vehicles (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement Road Test Procedure

1977-03-01
HISTORICAL
J1082A_197703
This SAE Standard incorporates driving cycles that produce fuel consumption data relating to Urban, Suburban, and Interstate driving patterns and is intended to be used to determine the relative fuel economy among vehicles and driving patterns under warmed-up conditions on test tracks, suitable roads, or chassis dynamometers. The urban driving cycle forms the basis of a Cold-Start Test Procedure described in SAE J1256. Purpose This document provides uniform testing procedures for measuring the fuel economy of light-duty vehicles (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement Road Test Procedure

2002-10-25
HISTORICAL
J1082_200210
This SAE Standard incorporates driving cycles that produce fuel consumption data relating to Urban, Suburban, and Interstate driving patterns and is intended to be used to determine the relative fuel economy among vehicles and driving patterns under warmed-up conditions on test tracks, suitable roads, or chassis dynamometers. The urban driving cycle forms the basis of a Cold-Start Test Procedure described in SAE J1256. Purpose This document provides uniform testing procedures for measuring the fuel economy of light-duty vehicles (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement Road Test Procedure

1989-01-01
HISTORICAL
J1082_198901
This SAE Standard incorporates driving cycles that produce fuel consumption data relating to Urban, Suburban, and Interstate driving patterns and is intended to be used to determine the relative fuel economy among vehicles and driving patterns under warmed-up conditions on test tracks, suitable roads, or chassis dynamometers. The urban driving cycle forms the basis of a Cold-Start Test Procedure described in SAE J1256. Purpose This document provides uniform testing procedures for measuring the fuel economy of light-duty vehicles (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement Road Test Procedure

1979-01-01
HISTORICAL
J1082B_197901
This SAE Standard incorporates driving cycles that produce fuel consumption data relating to Urban, Suburban, and Interstate driving patterns and is intended to be used to determine the relative fuel economy among vehicles and driving patterns under warmed-up conditions on test tracks, suitable roads, or chassis dynamometers. The urban driving cycle forms the basis of a Cold-Start Test Procedure described in SAE J1256. Purpose This document provides uniform testing procedures for measuring the fuel economy of light-duty vehicles (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg (10 000 lb) or less) on suitable roads.
Standard

Fuel Economy Measurement Road Test Procedure

1995-06-01
HISTORICAL
J1082_199506
This SAE Standard incorporates driving cycles that produce fuel consumption data relating to Urban, Suburban, and Interstate driving patterns and is intended to be used to determine the relative fuel economy among vehicles and driving patterns under warmed-up conditions on test tracks, suitable roads, or chassis dynamometers. The urban driving cycle forms the basis of a Cold-Start Test Procedure described in SAE J1256. This document provides uniform testing procedures for measuring the fuel economy of light duty vehicles (motor vehicles designed primarily for transportation of persons or property and rated at 4500 kg (10 000 lb) or less) on suitable roads.
Standard

Electric Vehicle Acceleration, Gradeability, and Deceleration Test Procedure

2002-10-25
CURRENT
J1666_200210
This SAE Recommended Practice establishes uniform procedures for testing electric battery-powered vehicles which are capable of being operated on public and private roads. It is the intent of this document to provide standard tests which will allow various performance characteristics of electric vehicles to be cross-compared on a common basis in specifications, technical papers, and engineering discussions. The tests concern attributes of the total vehicle system rather than those of its subsystems and components. Tests of components such as batteries are the subject of separate procedures. The road tests specified in this document are recommended for use whenever possible particularly to establish vehicle performance specifications. The dynamometer procedures are included primarily to facilitate development testing. Section 3 provides definitions of terminology used in this document.
Standard

Drive Quality Evaluation for Chassis Dynamometer Testing

2019-06-25
WIP
J2951
This SAE Recommended Practice establishes uniform procedures for evaluating conformity between the actual and target drive speeds for chassis dynamometer testing utilizing standard fuel economy and emissions drive schedules.
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