DELAY DYNAMIC COMPENSATION ENHANCED PI CONTROLLERS IN AUTOMOTIVE SYSTEMS

Most of the systems of interest in the automotive industry have to be classified as dynamic systems with time delays. Although this is the case it happens that because of implementation and cost constraints they are almost controlled by proportional-integral (PI) type algorithms which are calibrated based on well known tuning methods. Here is presented a control algorithm the so called delay dynamic compensation that modifies the control action of PI type algorithms in order to improve the dynamic behaviour of time delay systems. The control action of the delay dynamic compensation is easy to calibrate through a set of parameters and it is only active during defined transients of the dynamic system. Benchmark and automotive applications (boost pressure control) will provide more detailed knowledge on this type of control.