Abstract
A convoy problem is formulated and solved for two four-wheeled vehicles. The task is for the second vehicle to follow the leader’s trajectory with a constant time delay. This delayed trajectory can be viewed as the trajectory of a delayed leader. This novel constant-time-delay concept allows for the estimation of the delayed leader’s speed and heading using the vehicle kinematics. Decoupled longitudinal and lateral controllers are developed based on the constant-time-delay approach. The lateral controller includes a look-ahead feature to compensate for steering delays. Successful field trials were conducted with full-sized military vehicles on a 1.3-kilometre test track. The tracking errors from differential global positioning system (DGPS) ground truth covering 13 kilometres are presented.
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Goi, H.K., Barfoot, T.D., Francis, B.A., Giesbrecht, J.L. (2010). Vision-Based Vehicle Trajectory Following with Constant Time Delay. In: Howard, A., Iagnemma, K., Kelly, A. (eds) Field and Service Robotics. Springer Tracts in Advanced Robotics, vol 62. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13408-1_13
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DOI: https://doi.org/10.1007/978-3-642-13408-1_13
Publisher Name: Springer, Berlin, Heidelberg
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