METHOD AND DEVICE FOR CONTROLLING A SENSOR Russian patent published in 2005 - IPC

FIELD: technology and equipment for controlling sensor, preferably, sensor for measuring value, characterizing pressure of air fed into internal combustion engine.

SUBSTANCE: sensor error is detected on basis of absence of changes of its output value in response to appropriate change of certain work parameter, for example, amount of injected fuel. Sensor control can be performed, for example, only if some certain operation modes are present. In case of sensor breakdown, equivalent value is used for controlling engine. Such an equivalent value can be generated on basis of values, characterizing operation mode of internal combustion engine, for example, can be calculated on basis of rotation frequency and/or amount of injected fuel. Also as aforementioned equivalent value, value, received and saved previously, prior to sensor breakdown, can be utilized.

EFFECT: possible reliable correction of errors and breakdowns in operation of sensor, including those during operation of internal combustion engine in dynamic mode.

2 cl, 3 dwg