Predictive tachometer profile generation during transmission shift events
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United States of America Patent
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Mar 12, 2019
Grant Date -
Feb 1, 2018
app pub date -
Jul 27, 2016
filing date -
Jul 27, 2016
priority date (Note) -
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Abstract
Methods and systems are provided for generating a predictive tachometer profile at a tachometer of a vehicle. When an inertia phase of a transmission shift event is determined to be in progress, the predictive tachometer profile can be computed based on: a computed shift completion percentage; a difference between the current attained gear speed and the commanded gear speed; and a commanded engine torque that is determined based on the accelerator pedal position and the vehicle speed. The predictive tachometer profile can then be displayed at the tachometer. The predictive tachometer profile accounts for delays in a signal path between an engine speed sensor and the tachometer.
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