Development of Effective Bicycle Model for Wide Ranges of Vehicle Operations

Paper #:
  • 2014-01-0841

Published:
  • 2014-04-01
Citation:
Ren, H., Shim, T., Ryu, J., and Chen, S., "Development of Effective Bicycle Model for Wide Ranges of Vehicle Operations," SAE Technical Paper 2014-01-0841, 2014, https://doi.org/10.4271/2014-01-0841.
Pages:
9
Abstract:
This paper proposes an effective nonlinear bicycle model including longitudinal, lateral, and yaw motions of a vehicle. This bicycle model uses a simplified piece-wise linear tire model and tire force tuning algorithm to produce closely matching vehicle trajectory compared to real vehicle for wide vehicle operation ranges. A simplified piece-wise tire model that well represents nonlinear tire forces was developed. The key parameters of this model can be chosen from measured tire forces. For the effects of dynamic load transfer due to sharp vehicle maneuvers, a tire force tuning algorithm that dynamically adjusts tire forces of the bicycle model based on measured vehicle lateral acceleration is proposed. Responses of the proposed bicycle model have been compared with commercial vehicle dynamics model (CarSim) through simulation in various vehicle maneuvers (ramp steer, sine-with-dwell). The simulation results show that the trajectory of the proposed bicycle model is well matched with the CarSim vehicle model for ramp steer and sine-with-dwell maneuvers at various vehicle operating conditions. This model can be a useful tool for the development of effective vehicle chassis control systems.
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