Instead of the standard control principle on current state of controlled output, it offered to pass to the predictive control principle on future output. The realization of this principle in automatic control systems of technological parameters with standard algorithms allows to increase significantly quality of regulation and at the same time more fully using the opportunities given by programmable microprocessor equipment. The given in paper examples are proving that the prediction allows to reduce the range of control output deviation twice – three times. Prediction can use in coherent systems of regulation for the best approach of the real influence compensator to the ideal compensator. Potential opportunities of predictive algorithms can use at regulator’s tuning for cases when the object dynamic characteristics are unknown. The method of setup of predictive linear regulators by one parameter – predictive time – offered.