Cooperative adaptive cruise control applying stochastic linear model predictive control strategies
Control Conference (ECC), 2015 European, pp. 3383-3388, 2015
Author(s): | Moser D., Waschl H., Kirchsteiger H., Schmied R., Del Re L. |
Year: | 2015 |
Month: | 7 |
Abstract: | In this paper a cooperative adaptive cruise control
approach using stochastic, linear model predictive control
strategies is presented. The presented approach deals with an
urban traffic environment where vehicle to vehicle and vehicle
to infrastructure communication systems are available. The goal
is the minimization of a vehicle?s fuel consumption in a vehiclefollowing
scenario. This is achieved by minimizing a piecewise
linear approximation of the vehicle?s fuel consumption map.
By means of a conditional Gaussian model the probability
distribution of the upcoming velocity of the preceding vehicle
is estimated based on current measurements and upcoming
traffic light signals. The predicted distribution function of
the predecessor?s velocity is used in two ways for stochastic
model predictive control. On the one hand, individual chance
constraints are introduced and subsequently reformulated to
obtain an equivalent deterministic model predictive control
problem. On the other hand, samples are drawn from the
prediction model and used for a randomized optimization approach.
Finally, the two developed stochastic control strategies
are evaluated and compared against a deterministic model
predictive control approach by means of a virtual traffic
simulation. The evaluation of the controllers show a significant
reduction of the fuel consumption compared to the predecessor
while increasing safety and driving comfort. |