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ETQ meaning in General ? |
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Answer» What is Effective Torque mean? 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. 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. reference |
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