| 词条 | Effective torque |
| 释义 |
Effective Torque is often referred to as wheel torque or torque to the wheels is primarily associated with automotive tuning. Torque can be measured using a dynamometer. Common units used in automotive applications can include ft·lbf and N·m. For more on units see: Foot-pound force. The formula for effective torque to the wheels is: Tw = Te * Ntf * ηtf Ntf = Nt * Nf ηtf = ηt * ηf ... where Tw is wheel torque, Te is engine torque, N is the gear ratio, η is the efficiency, and the subscripts t and f are for the gearbox and differential, respectively.[1] Effective torque will often be 5-15% lower than the shaft or crank ratings of an engine due to a loss through the drivetrain. For a general article please see: Machine torque. References1. ^{{cite journal|title=Fuel Consumption and Gearbox Efficiency in the Fifth Gear Ratio of Roa Vehicle|url=http://www.m-hikari.com/atam/atam2010/atam5-8-2010/ghafooriATAM5-8-2010.pdf|author=R. Ghafoori Ahangar, M. R. Meigounpoory, A. Eskandari|journal=Adv. Theor. Appl. Mech., Vol. 3, 2010, no. 7, 299 - 308 }} {{DEFAULTSORT:Effective Torque}}{{Automotive-tech-stub}} 1 : Engine technology |
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