| 摘要 |
Method for adaptation of a mass flow sensor (6) which is intended to measure the mass flow of air in an air intake (7) to a combustion engine (1), according to which method: - unburnt fuel is caused to accompany the exhaust gases produced by the engine to a fuel oxidation device (4) in order to be oxidised in the fuel oxidation device and cause an increase in temperature of the exhaust gases, - a temperature increase value which represents said increase in the temperature of the exhaust gases is determined, - a calculation value which represents the prevailing mass flow of air in the engine's air intake is determined on the basis of said temperature increase value and fuel mass flow values which represent respectively the mass flow of said unburnt fuel and the mass flow of fuel injected into and burnt in the engine, - said calculation value is compared with a corresponding measured value determined by means of the mass flow sensor, and - the mass flow sensor is adapted on the basis of the result of that comparison. |
