SAE Standards Works
Truck and Bus Advanced and Hybrid Powertrain Steering Comm
J1266 - Axle Efficiency Test Procedure
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Axle Efficiency Test Procedure
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.