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Drive-by-wire control of automotive driveline oscillations by response surface methodology

Stewart, Paul and Fleming, P. J. (2004) Drive-by-wire control of automotive driveline oscillations by response surface methodology. IEEE Transactions on control systems technology, 12 (5). pp. 737-741. ISSN 1063-6536

Full content URL: http://dx.doi.org/10.1109/TCST.2004.825147

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Drive-by-wire control of automotive driveline oscillations by response surface methodology
The first torsional mode (otherwise known as “shuffle” mode) of automotive drivelines is excited by engine torque transients and is typically around 2–5 Hz. The effect is particularly severe during step changes from the throttle pedal (“tip-in” or “tip-out”). Shuffle is manifest as a low-frequency longtitudinal acceleration oscillation which, if of sufficient magni- tude, leads to driver discomfort. This brief examines the control of this aspect of “driveability” (the error between expected vehicle response and actual vehicle response to an arbitary control input) using feedforward control. The overriding principle to be ob- tained in this examination is the assessment of electronic throttle control in the context of rapid prototyping. The response surface methodology is adopted to achieve this goal. The potential of the electronic throttle for launch control is analyzed and investigated experimentally, confirming its effectiveness in controlling the first torsional mode.
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Abstract

The first torsional mode (otherwise known as “shuffle” mode) of automotive drivelines is excited by engine torque transients and is typically around 2–5 Hz. The effect is particularly severe during step changes from the throttle pedal (“tip-in” or “tip-out”). Shuffle is manifest as a low-frequency longtitudinal acceleration oscillation which, if of sufficient magni- tude, leads to driver discomfort. This brief examines the control of this aspect of “driveability” (the error between expected vehicle response and actual vehicle response to an arbitary control input) using feedforward control. The overriding principle to be ob- tained in this examination is the assessment of electronic throttle control in the context of rapid prototyping. The response surface methodology is adopted to achieve this goal. The potential of the electronic throttle for launch control is analyzed and investigated experimentally, confirming its effectiveness in controlling the first torsional mode.

Additional Information:The first torsional mode (otherwise known as “shuffle” mode) of automotive drivelines is excited by engine torque transients and is typically around 2–5 Hz. The effect is particularly severe during step changes from the throttle pedal (“tip-in” or “tip-out”). Shuffle is manifest as a low-frequency longtitudinal acceleration oscillation which, if of sufficient magni- tude, leads to driver discomfort. This brief examines the control of this aspect of “driveability” (the error between expected vehicle response and actual vehicle response to an arbitary control input) using feedforward control. The overriding principle to be ob- tained in this examination is the assessment of electronic throttle control in the context of rapid prototyping. The response surface methodology is adopted to achieve this goal. The potential of the electronic throttle for launch control is analyzed and investigated experimentally, confirming its effectiveness in controlling the first torsional mode.
Keywords:driveability, driveline, model predictive control, response surfaces, shuffle
Subjects:H Engineering > H660 Control Systems
H Engineering > H330 Automotive Engineering
Divisions:College of Science > School of Engineering
ID Code:2193
Deposited On:02 Mar 2010 13:20

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