TEMPERATURE CONTROLLER FOR EXHAUST GAS SENSOR, ITS TEMPERATURE CONTROL METHOD, AND MEDIUM ON WHICH PROGRAM FOR TEMPERATURE CONTROL OF EXHAUST GAS SENSOR IS RECORDED

摘要

A control input (DUT) for controlling a heater (13) for heating an element part (10) of an exhaust gas sensor (8) includes at least one of another component corresponding to the difference between the temperature data on the element part (10) and the target temperature, a component corresponding to the target temperature, and a component corresponding the temperature data on the element part (10). The control input is determined by an optimal control algorithm. The component corresponding to the temperature of the exhaust gas and the component corresponding the target component are determined by a preview control algorithm. In such a way, the temperature of the element part (10) of the exhaust gas sensor (8) can be stably controlled at a desired one.