Refine Your Search

Date

Date

Topic

Topic

Parts and Components On-board energy sources Data management Truck and Bus Powertrain Committee

Search Results

Viewing 1 to 20 of 57
123Next >Last >>
Sort by published
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

Recommended Practices for CNG Powered Medium and Heavy-Duty Trucks
2018-02-12
CURRENT
J2406_201802
This SAE Recommended Practice provides guidance for the construction, operation, and maintenance of CNG powered medium and heavy-duty trucks. The intent of this document is to cover TRUCKS (6350 kg (14 001 gvw pounds) and above) and specifically excludes passenger vehicles such as: buses, recreational vehicles, motor homes and/or passenger vehicles which may incorporate a truck chassis in their construction.
Standard

Liquefied Natural Gas (LNG) Vehicle Fuel
2018-02-12
CURRENT
J2699_201802
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.
Standard

Openings for Six- and Eight-Bolt Truck Transmission Mounted Power Take-Offs
2017-11-03
CURRENT
J704_201711
The accompanying mounting and gear locations are applicable for all general installations of power take-off on the transmission gear box of motor trucks and tractors where the size of the transmission permits. The heavy-duty type opening can be adapted to the regular-duty type by the use of an adapter with 6.35 mm (0.25 in) flange thickness with appropriate bolt pattern and thread engagement. (See Figures 1 and 2.)
Standard

Torque Ratings for Power Take-off Mounting Pads
2017-09-19
CURRENT
J2662_201709
This SAE Recommended Practice is intended to serve as a reference for the amount of torque that a Power Take-Off can induce on the transmission mounting pad. This document will apply to six-bolt, eight-bolt, and rear mounted power take-offs.
Standard

Recommended Remanufacturing Procedures for Manual Transmission Clutch Assemblies
2017-08-22
CURRENT
J1915_201708
This SAE Recommended Practice is prepared as a guideline to improve and maintain the quality of remanufactured automotive products. Installation of remanufactured or rebuilt products is often an economical way to repair a vehicle even though they may not fully be equivalent to original equipment parts. Before processing any part, a remanufacturer should determine if the original design and present condition of the core are suitable for remanufacturing, so as to provide durable operation of the part as well as acceptable performance when installed in a vehicle. The remanufacturer should also carefully consider the safety aspects of the product and any recommendations of the original manufacturer related to remanufacturing or rebuilding their product.
Standard

Manual Transmission Shift Patterns
2017-08-15
CURRENT
J1608_201708
Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.
Standard

Pilot Bearings for Truck and Bus Applications
2017-08-14
CURRENT
J1731_201708
This SAE Recommended Practice describes STANDARD-DUTY and EXTREME-DUTY Pilot Bearing requirements and sizes for class 6, 7, and 8 on-highway trucks and buses that use diesel engines and manual transmissions. The recommendations may apply to a wide range of other pilot-bearing applications, such as agricultural, industrial, and construction equipment.
Standard

SAE Nodal Mount
2017-08-14
CURRENT
J1134_201708
This SAE Recommended Practice establishes a single bolt pattern for the No. 1 clutch housing (see Figure 1) and the No. 2 clutch housing (see Figure 2). These four bolt patterns are designated to give commonality of mounting brackets in existing frame rails. The 420 mm (16.5 in) span, pad face to pad face, allows the ease of installation in existing frame rail widths. This is also the minimum spacing which will accommodate commonly used clutches.
Standard

Manual Transmission Efficiency and Parasitic Loss Measurement
2012-11-09
CURRENT
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.
Standard

Manual Transmission Shift Patterns
2012-11-09
HISTORICAL
J1608_201211
Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.
Standard

Nomenclature and Terminology for Truck and Bus Drive Axles
2012-07-02
CURRENT
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.
Standard

Liquefied Natural Gas (LNG) Vehicle Fuel
2011-07-08
HISTORICAL
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.
123Next >Last >>
X