Process for operating internal-combustion engine in motor vehicle, comprises determining of electrical resistance of nitrogen oxide gas sensor and temperature of the electrical heating element and activating the heat function

摘要

The threshold value for the temperature of the heating element is determined by exhaust system-specific computer model. Cooling agent is used for cooling the engine. Emission control element (4) arranged in engine and reducing agent/oxygen content are used to determine the operating parameters of the engine. Positive temperature coefficient of the heating element is more than 2 parts per thousand for each Kelvin.