Abstract
The single or multi-controlled variables adaptive controller for an air driven assist pump was investigated. The LV bypass pump is driven on counterpulsation. The controller consists of a parameter estimator and adaptive controller. The second order time series model and least-square estimation method are used to estimate the system parameters. Based on the estimated parameters, the controller predicts controlled variables such as blood pressures in steady state. And the control input, vacuum pressure, is adjusted so that the performance index is minimum. Feasibility of the controller was demonstrated by computer simulations. The controller produced the desired responses for against the sudden change in the circulatory condition.
