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SAE J2453_201109

Name: SAE J2453_201109 PDF | Request Standard
SKU: b87eea3dc42d

Manual Transmission and Transaxle Efficiency and Parasitic Loss Measurement

Standard by SAE International, 2011-09-02

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SAE J2453_201109.PDFSecure PDF
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Language: English
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Language: English
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About This Item

Because of the intense focus on CAFE and fuel emission standards, optimization of the automobile drivetrain is imperative. 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 the dynamometer test procedure which maps a manual transmission’s efficiency. The document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine “in-gear” transmission efficiency. The second procedure measures parasitic losses experienced while in neutral at nominal idling speeds and also churning losses while in gear. The application of this document is intended for passenger car and light truck. All references to transmissions throughout this document include transaxles. The technical report covers technology, products, or processes which are mature and not likely to change in the foreseeable future.

SKU: b87eea3dc42d

Publication Date: 2011-09-02

Standard Status: latest

Publisher: SAE International

Document Type: Ground Vehicle Standard

Subject: Manual transmissions, Light trucks, Transmissions, Transaxles, Gear lubricants, Data acquisition and handling, Test equipment and instrumentation, Test procedures, Environmental regulations and standards

Official SAE: Doi link

This Version: J2453_201109 (2011-09-02)
Previous Version: J2453_199908 (1999-08-30)

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