Method for error-minimized determination of the temperature of hot gases

摘要

Method for determining the temperature of hot, flowing gases in internal combustion engines with a temperature sensor which records measured values in the gas, an expected error-minimized temperature value being determined from several time-offset temperature signal values using a calculation method, characterized in that - temperature-time characteristic values of the temperature sensor and at least one comparison temperature sensor, some of which have different parameters, are determined in advance under the same conditions and stored in a memory, - measured values of the temperature sensor are recorded in successive steps when measuring in flowing gases and fed to an evaluation unit, - the temperature is determined which the comparison temperature sensor would determine under the current conditions by providing the currently determined temperature with a correction value, which is taken from a calculation model under consideration g of the previously determined temperature-time parameters is determined.