| 摘要 |
A torque calculator (10) and method for providing real time data that measur es net torque output of a running engine (100) in a motor vehicle. Gross torque production (24) is calculated using engine speed and fueling data. Torque losses due to accessories, pumping, and friction (22, 26, 28, 30) are calculated and subtracted from gross torque production, and inertial torque is also accounted for to yield engine net running torque. The engine net runnin g torque data and engine speed data are processed according to a filter algorithm (94) that compensates the engine net running torque data for engin e speed. Transmission shifting (112) is controlled by the speed-compensated engine net running torque. |
