Method and device for controlling a humidity sensor in a combustion engine, using oxygen measurement from other sensors in the engine, such as NOx sensors, lambda and / or oxygen

摘要

Method for controlling a humidity sensor in a system of internal combustion engines, comprising a step in which an ambient humidity measured by said humidity sensor and a certain humidity from a measurement of oxygen of at least one sensor is compared in the engine system, wherein said comparison is made using a deviation of the reading oxygen signal of said at least one sensor in a condition in which the drift or bias of said another sensor is related to the variation of the ambient humidity, wherein said condition is fuel cut in the engine system.