30 Jul 2020, 10:58 (Ref:3991620)
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#223
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Join Date: Apr 2007
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Posts: 12,348
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A lot has been written about the engine torque map, inverse engine torque map, driver demand torque map, pedal map and ignition map here:
'So, with the generic term “Engine Maps” we refer to a wide set of one-dimension or two-dimension parameter tables loaded into the ECU to control all the engine parameters, that are, at least, throttle opening, injection and ignition timings (duration, phase, etc...). All maps are filled with proper data during hours of engine calibration done at the test rig and/or at track. The torque demand, as requested from the driver by the acceleration pedal, is calculated by the chain composed by the Pedal Map and the Torque Demand Map. The input variable is the accelerator pedal position, given by the drive by wire potentiometer and the output variable will be the throttle position, actuated from the ECU by hydraulic or electric actuators on the engine intake butterflies or barrels.'
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