An Effort to Build Mathematical Model using Time Series Analysis to Aid Steering Auto-Correction in Heavy Commercial Vehicle during High Speed Braking

Paper #:
  • 2015-01-2763

Published:
  • 2015-09-29
DOI:
  • 10.4271/2015-01-2763
Citation:
Rahaman, S. and Chatterjee, S., "An Effort to Build Mathematical Model using Time Series Analysis to Aid Steering Auto-Correction in Heavy Commercial Vehicle during High Speed Braking," SAE Technical Paper 2015-01-2763, 2015, doi:10.4271/2015-01-2763.
Pages:
30
Abstract:
Steering pull during high speed braking of heavy commercial vehicles possesses a potential danger to the occupants. Even with negligible wheel-to-wheel brake torque variation, steering pull during the high speed braking has been observed.If the steering pull (i.e. steering rotation) is forcibly held at zero degree during high speed braking, the phenomena called axle twist, wheel turn and shock absorber deflection arise.In this work the data have been collected on the mentioned measures with an intention to develop a mathematical model which uses real time data, coming from feedback mechanism to predict the values of the measures in coming moments in order to aid steering system to ‘auto-correct’.Driven by the intention, ‘Time Series Analysis’, a well-known statistical methodology, has been explored to see how suitable it is in building the kind of model. Moreover, if successful, similar approach can be adapted for other vehicle types and operational modes such as Electronic Stability Program (ESP).
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