FIELD: motor industry.
SUBSTANCE: invention relates to determining the ambient air humidity by means of an exhaust gas sensor associated with an internal combustion engine exhaust system. According to one embodiment, the sensor reference voltage is modulated between the first and second voltages to the motor during the fuel cutoff. Outer air humidity is determined based on the average value of the pump current variation with voltage modulation.
EFFECT: neutralization of the effect of changing the air-fuel ratio due to modulation of the reference voltage.
19 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD (VERSION) AND SYSTEM FOR HUMIDITY AND POSITIVE CRANKCASE VENTILATION FLOW DETECTION VIA EXHAUST GAS SENSOR | 2014 |
|
RU2676831C2 |
| METHOD (VERSIONS) AND ENGINE CONTROL SYSTEM BASED ON EVALUATION OF ALCOHOL CONTENT IN FUEL | 2016 |
|
RU2717478C2 |
| METHODS AND SYSTEMS FOR INTAKE OXYGEN SENSOR | 2014 |
|
RU2653721C2 |
| METHOD (OPTIONS) AND SYSTEM FOR REGULATION OF HEATING POWER OF OXYGEN SENSOR TO REDUCE DEGRADATION THEREOF UNDER WATER | 2014 |
|
RU2681724C2 |
| METHOD (VERSIONS) AND SYSTEM FOR EXTERNAL AIR HUMIDITY DETECTION VIA EXHAUST GAS SENSOR | 2014 |
|
RU2676839C2 |
| METHOD FOR DIAGNOSING ENGINE WITH VALVE FOR CONTROL OF DILUTION OF AIR INTAKE (VERSIONS) | 2012 |
|
RU2593872C2 |
| MOISTURE CONTENT MEASURING METHOD | 2016 |
|
RU2689227C2 |
| METHOD (VERSIONS) AND SYSTEM FOR ENGINE CONTROL BASED ON ASSESSMENT OF AIR-FUEL RATIO BY MEANS OF OXYGEN SENSOR WITH VARIABLE VOLTAGE | 2016 |
|
RU2717476C2 |
| ENGINE METHODS (VERSIONS) | 2014 |
|
RU2663678C2 |
| METHOD (VERSIONS) AND SYSTEM FOR CALCULATING AIR-FUEL RATIO BY MEANS OF OXYGEN SENSOR OF ALTERNATING VOLTAGE | 2016 |
|
RU2691872C2 |
