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Standard

Recommended Practice for Measuring Fuel Economy and Emissions of Hybrid-Electric and Conventional Heavy-Duty Vehicles

2020-05-15

CURRENT

J2711_202005

This SAE Recommended Practice was established to provide an accurate, uniform, and reproducible procedure for simulating use of MD/HD conventional vehicles (CVs) 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.

Standard

Clearance Envelopes for Six-Bolt, Eight-Bolt, and Rear Truck Transmission Mounted Power Takeoffs

2017-11-03

CURRENT

J772_201711

This SAE 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.

Standard

Vehicle Idle Gear Rattle Evaluation Procedure

2017-09-19

CURRENT

J2555_201709

This SAE Standard describes a procedure to be used to evaluate a disturbance known as “idle gear rattle” which can exist in vehicles equipped with manual transmissions and clutches. Other types of noises associated with operation at idle are also briefly described.

Standard

Flywheel Dimensions for Truck and Bus Applications

2017-09-19

CURRENT

J1857_201709

Although not limited to, these flywheels are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8) trucks.

Standard

Clutch Dimensions for Truck and Bus Applications

2017-08-14

CURRENT

J1806_201708

Although not limited to, these clutches are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8).

Standard

Pull-Type Clutch Transmission Installation Dimensions

2012-11-09

CURRENT

J1463_201211

This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1.

Standard

Automotive Pull-Type Clutch Terminology

2012-11-09

CURRENT

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.

Standard

Engine Retarder Dynamometer Test and Capability Rating Procedure

2005-12-12

HISTORICAL

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 d A method for determining net engine retarder power with a dynamometer

Standard

Clearance Envelopes for Six-Bolt, Eight-Bolt, and Rear Truck Transmission Mounted Power Takeoffs

2004-07-23

HISTORICAL

J772_200407

This SAE 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.

Standard

Pull-Type Clutch Transmission Installation Dimensions

2003-04-24

HISTORICAL

J1463_200304

This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1.

Standard

Flywheel Dimensions for Truck and Bus Applications

2003-04-23

HISTORICAL

J1857_200304

Although not limited to, these flywheels are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8) trucks.

Standard

Clutch Requirements for High-Torque Truck and Bus Engines

2002-07-17

HISTORICAL

J2408_200207

Although not limited to, these clutch requirements are normally used on trucks considered as Heavy Duty (Class 8).

Standard

Vehicle Idle Gear Rattle Evaluation Procedure

2000-11-01

HISTORICAL

J2555_200011

This SAE Standard describes a procedure to be used to evaluate a disturbance known as “idle gear rattle” which can exist in vehicles equipped with manual transmissions and clutches. Other types of noises associated with operation at idle are also briefly described.

Standard

Clearance Envelopes for Six-Bolt, Eight-Bolt, and Rear Truck Transmission Mounted Power Takeoffs

2000-09-07

HISTORICAL

J772_200009

This SAE 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.

Standard

Information Relating to Duty Cycles and Average Power Requirements of Truck and Bus Engine Accessories

2000-08-31

CURRENT

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).

Standard

Clutch Dimensions for Truck and Bus Applications

1999-11-30

HISTORICAL

J1806_199911

Although not limited to, these clutches are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8).

Standard

Automotive Pull-Type Clutch Terminology

1999-09-21

HISTORICAL

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.

Standard

Exhaust Brake Dynamometer Test and Capability Rating Procedure

1998-07-01

HISTORICAL

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

Standard

Pull-Type Clutch Transmission Installation Dimensions

1998-01-01

HISTORICAL

J1463_199801

This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1.

Standard

FLYWHEEL DIMENSIONS FOR TRUCK AND BUS APPLICATIONS

1997-01-01

HISTORICAL

J1857_199701

Although not limited to, these flywheels are normally used on trucks considered as Medium-Duty (Class 6 and 7), as well as Heavy-Duty (Class 8) trucks.