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WIP Standard
2013-05-01
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.
WIP Standard
2013-05-01
The purpose of this document is to provide dimensions of clearance envelopes for various types of six-bolt regular-duty, eight-bolt heavy-duty, and side- and rear-mounted truck transmission power takeoffs. These envelopes are applicable to the clearance required immediately adjacent to the power takeoff openings on truck transmissions. Clearance envelopes are provided for the purpose of documenting current practice. It must be recognized that many current designs do not provide these clearances in all orientations and variations. New transmission and power takeoff designs should attempt to adhere to these envelopes where practical, but they should not be construed to be design restrictive; ultimately, the actual power takeoff clearance must be established for each application. In order to provide realistic envelope sizes, there are seven basic ÒtypesÓ of side-mounted P.T.O. envelopes and rear-mounted envelopes as shown in Table 1. All envelopes shown are basic and can be reversed for output to the front or rear of the vehicle.
WIP Standard
2013-01-31
Data from this SAE Recommended Practice permit mapping axle efficiency and/or waste energy over the operating range of trucks, busses, and other highway vehicles based on truck chasses. The procedure can be applied to single axles, tandem axles as a system, or other systems, by combining separate tests, such as tests of the front axle and power divider and rear axle of tandem or tri-drive type.
Standard
2012-11-09
This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1. Purpose Provide dimensional guidelines for current and future designs and thus promote interchangeability between various clutch and transmission combinations. Due to the variety of clutches and transmission mounted clutch housings, no standard clearance envelope can be established without imposing design restrictions. It is recommended that any specific combination be verified for clearance before incorporating in design.
Standard
2012-11-09
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
2012-11-09
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. The second procedure measures parasitic losses experienced at zero output torque over a range of operating speeds.
Standard
2012-11-09
Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.
Standard
2012-07-31
This SAE Recommended Practice takes into account modern standardized methods for collecting and summarizing data that has an effect on vehicle steady-state performance, such as engine output (gross and net), transmission losses, drivetrain efficiency, vehicle aerodynamic devices for various vehicle and body configurations, as well as road surface variations and air density variations resulting from altitude and barometric effects. The procedure does not address vehicle transient performance (acceleration, braking, and cornering), because of the considerable amount of additional data required such as moment of inertia of all the rotating parts. Nor does it address vehicles with torque converters and automatic transmissions. This document is, therefore, intended for vehicles having fixed-ratio type transmissions and positive engagement clutches. Metric and ISO unit conversions are provided in the metric conversion tables at the end of this procedure (see Appendix B). Some modern vehicles with electronic engine controls have the ability to vary the maximum engine revolutions for each gear, as well as permitting the power or rpm to increase if more time is spent in the lower gears, as when climbing a grade.
Standard
2012-07-02
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
2012-07-02
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.
Standard
2012-07-02
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.
WIP Standard
2010-12-10
This SAE Recommended Practice was established to provide an accurate, uniform and reproducible procedure for simulating use of heavy-duty hybrid- electric vehicles (HEVs) and conventional vehicles on dynamometers for the purpose of measuring emissions and fuel economy. Although the recommended practice can be applied using any driving cycle, the practice recommends three cycles: the Manhattan cycle, representing low-speed transit bus operation; the Orange County Transit Cycle, representing intermediate-speed bus operation; and the Urban Dynamometer Driving Schedule (UDDS) cycle representing high-speed operation for buses and tractor-trailers. This document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, PM, CO 2 ), as that decision will depend on the objectives of the tester. While the recommended practice was developed specifically to address the issue of measuring fuel economy and emissions for hybrid-electric heavy-duty vehicles on a chassis dynamometer, the document can also be applied to chassis testing of other heavy- duty vehicles.
Standard
2005-12-12
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.
Standard
2004-08-25
Although not limited to, these installations are normally used on trucks considered as Medium Duty (Class 6 and 7), as well as Heavy Duty (Class 8). This SAE Recommended Practice defines powertrain application startability rating requirements for pull type single and twin plate truck clutches.
Standard
2004-07-23
The purpose of this document is to provide dimensions of clearance envelopes for various types of six-bolt regular-duty, eight-bolt heavy-duty, and side- and rear-mounted truck transmission power takeoffs. These envelopes are applicable to the clearance required immediately adjacent to the power takeoff openings on truck transmissions. Clearance envelopes are provided for the purpose of documenting current practice. It must be recognized that many current designs do not provide these clearances in all orientations and variations. New transmission and power takeoff designs should attempt to adhere to these envelopes where practical, but they should not be construed to be design restrictive; ultimately, the actual power takeoff clearance must be established for each application. In order to provide realistic envelope sizes, there are seven basic ÒtypesÓ of side-mounted P.T.O. envelopes and rear-mounted envelopes as shown in Table 1. All envelopes shown are basic and can be reversed for output to the front or rear of the vehicle.
Standard
2003-10-10
This SAE Recommended Practice takes into account modern standardized methods for collecting and summarizing data that has an effect on vehicle steady-state performance, such as engine output (gross and net), transmission losses, drivetrain efficiency, vehicle aerodynamic devices for various vehicle and body configurations, as well as road surface variations and air density variations resulting from altitude and barometric effects. The procedure does not address vehicle transient performance (acceleration, braking, and cornering), because of the considerable amount of additional data required such as moment of inertia of all the rotating parts. Nor does it address vehicles with torque converters and automatic transmissions. This document is, therefore, intended for vehicles having fixed-ratio type transmissions and positive engagement clutches. Metric and ISO unit conversions are provided in the metric conversion tables at the end of this procedure (see Appendix B). Some modern vehicles with electronic engine controls have the ability to vary the maximum engine revolutions for each gear, as well as permitting the power or rpm to increase if more time is spent in the lower gears, as when climbing a grade.
Standard
2003-08-29
This SAE Standard applies only to new winches which are primarily designed for intermittent pulls and lifts and whose configuration and condition are the same as when they were shipped by the manufacturer. They are not intended to be used in any manner for the movement of personnel. They may be driven by any power source recommended by the manufacturer and will be capable of being powered in either direction. They will be equipped with an automatic safety brake system to control a load when lowering under power and positively hold a load when power is not being delivered to the winch. A hydraulic flow control valve or similar device may be used in the brake system to control a load when lowering under power. A clutch to release the drum for Òfree-spoolingÓ may be provided and will be designed not to disengage itself under load. A drag brake may be provided to control Òfree-spooling,Ó but will not be relied on to control or hold a load. Power sources, such as hydraulic motors, even though they may be supplied or recommended by the winch manufacturer, are not considered a part of the winch so far as this document is concerned, except to whatever extent they are a part of the brake system.
Standard
2003-07-29
Drain and Fill plugs used on engines, transmissions, transfer cases and front and rear drive axles for class 5 - 8 vehicles. The purpose of this SAE Recommended Practice is to establish and maintain a common plug, for various bus and truck powertrain components, among the various manufacturers. This will allow OEM manufacturing facilities and service outlets to utilize common plugs and common tools for oil fill and drain operations.
Standard
2003-07-25
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. Purpose The purpose of this document is to inform the transmission designer about possible structural requirements of the transmission housing due to loading applied by the power takeoff and any other auxiliary drive components.
Standard
2003-04-24
This SAE Recommended Practice documents the typical transmission interface dimensions that are used with 14-in and larger pull-type clutches. See Figure 1. Purpose Provide dimensional guidelines for current and future designs and thus promote interchangeability between various clutch and transmission combinations. Due to the variety of clutches and transmission mounted clutch housings, no standard clearance envelope can be established without imposing design restrictions. It is recommended that any specific combination be verified for clearance before incorporating in design.
Standard
2003-04-23
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. Purpose This SAE Recommended Practice defines flywheel configurations to promote standardization of clutch installation and mounting dimensions for flywheels used with pull type single- and twin-plate truck clutches.
Standard
2002-09-20
This SAE Recommended Practice was established to provide an accurate, uniform and reproducible procedure for simulating use of heavy-duty hybrid- electric vehicles (HEVs) and conventional vehicles on dynamometers for the purpose of measuring emissions and fuel economy. Although the recommended practice can be applied using any driving cycle, the practice recommends three cycles: the Manhattan cycle, representing low-speed transit bus operation; the Orange County Transit Cycle, representing intermediate-speed bus operation; and the Urban Dynamometer Driving Schedule (UDDS) cycle representing high-speed operation for buses and tractor-trailers. This document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, PM, CO 2 ), as that decision will depend on the objectives of the tester. While the recommended practice was developed specifically to address the issue of measuring fuel economy and emissions for hybrid-electric heavy-duty vehicles on a chassis dynamometer, the document can also be applied to chassis testing of other heavy- duty vehicles.
Standard
2002-08-23
For guidance only in regard to highway commercial motor vehicles where protection to the rear against rear wheel splash and stone throw is deemed necessary, the following clearance specifications are recommended.
Standard
2002-07-17
Although not limited to, these clutch requirements are normally used on trucks considered as Heavy Duty (Class 8). This SAE Information Report defines and discusses clutch and related component configurations which will become the subject of future SAE Recommended Practices to promote standardization of clutch installations and mounting dimensions for use with pull-type heavy-duty clutches.
Standard
2001-09-07
Provide standard shift pattern guidelines for manual transmission shift controls in light, medium, and heavy trucks and buses.
Standard
2001-08-03
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
2001-06-12
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
2001-04-27
Data from this SAE Recommended Practice permit mapping axle efficiency and/or waste energy over the operating range of trucks, busses, and other highway vehicles based on truck chasses. The procedure can be applied to single axles, tandem axles as a system, or other systems, by combining separate tests, such as tests of the front axle and power divider and rear axle of tandem or tri-drive type.
Standard
2001-04-25
This SAE Recommended Practice applies to all forms of diesel and natural gas engines fueled by the combination of diesel fuel and natural gas. This document provides a method to determine the torque generating capability of an engine as it accelerates away from idle at a specified acceleration rate. The data is typically used to aid in the proper matching of the engine to the available torque converters of a torque converter equipped transmission. The goal is to achieve acceptable off-idle transient engine acceleration against the load of a torque converter equipped vehicle as it moves away from a stop.
Viewing 1 to 30 of 70