Integration of active braking system in multi-body systems tool to improve prediction of braking loads

Paper #:
  • 2017-01-0418

Published:
  • 2017-03-28
Abstract:
An increase in data measurement and recording within vehicles has allowed Anti-lock Braking Systems (ABS) to monitor a vehicles dynamic behavior in far more detail. This increased monitoring helps to improve vehicle response in scenarios such as braking whilst cornering and braking on uneven surfaces. Durability and Robustness (D&R) CAE department within Jaguar Land Rover discovered that the lack of a complex ABS system in virtual vehicle models was contributing to poor lateral and longitudinal loads correlation throughout the suspension and mounting systems. Last year the team started a project to incorporate Continentals ABS system, provided by '©Continental AG' for physical JLR vehicles, into SIMPACK virtual vehicles by means of a co-simulation. The work involved collaboration between 3 departments in Jaguar Land Rover and ultimately led to implementation of the ABS into the JLR wide virtual database. Following successful implementation of the new ABS system; D&R CAE commenced correlation of various virtual models of JLR vehicles over key durability and extreme event surfaces. These surfaces and the correlation techniques are described in detail in this report. Complete correlation is estimated to be achieved by March 2017; however results thus far show significant improvement in wheel rotational deceleration on 2 of the 4 test cases when compared against the original ABS system. There are also early signs that suspension longitudinal and lateral loads correlation has improved following this work. Improved correlation in this area moves D&R CAE forward in their goal to achieving confident predictive ability on durability and extreme braked loadcases which will ultimately reduce the reliance on physical testing and improve JLR's processes.
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