FIELD: engines.
SUBSTANCE: invention relates to internal combustion engine control system, which controls internal combustion engine by air-fuel ratio sensor output signal. Result is achieved by fact, that air-fuel ratio sensor is made so, that supplied voltage, at which output current reaches zero, varies according to air-fuel ratio and output current increases, if supplied voltage at air-fuel ratio sensor is increasing, when exhaust gas air-fuel ratio is stoichiometric air-fuel ratio. When exhaust gas air-fuel ratio shall be determined by air-fuel ratio sensor, supplied voltage at air-fuel ratio sensor is fixed to constant voltage, wherein said direct voltage differs from voltage, at which output current reaches zero, when exhaust air-fuel ratio represents stoichiometric air-fuel ratio, and represents voltage, at which output current reaches zero, when exhaust air-fuel ratio differs from stoichiometric air-fuel ratio. Thus, internal combustion engine control system uses air-fuel ratio sensor, capable to determine absolute value for exhaust gas air-fuel ratio, even if exhaust gas air-fuel ratio is not stoichiometric air-fuel ratio.
EFFECT: technical result is creation of internal combustion engine control system, in which air-fuel ratio sensor is used, capable to determine exhaust gas air-fuel ratio absolute value, even in cases, when air-fuel ratio is not stoichiometric.
22 cl, 20 dwg
Title | Year | Author | Number |
---|---|---|---|
CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE | 2013 |
|
RU2617423C2 |
CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE | 2013 |
|
RU2617426C2 |
INTERNAL COMBUSTION ENGINE CONTROL SYSTEM | 2013 |
|
RU2609604C1 |
INTERNAL COMBUSTION ENGINE CONTROL SYSTEM | 2014 |
|
RU2642518C2 |
CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE | 2014 |
|
RU2618532C1 |
CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE | 2013 |
|
RU2619092C2 |
CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE | 2013 |
|
RU2609601C1 |
AIR-FUEL RATIO SENSOR FAULT DIAGNOSIS SYSTEM | 2013 |
|
RU2643169C2 |
EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE | 2016 |
|
RU2639893C2 |
INTERNAL COMBUSTION ENGINE | 2016 |
|
RU2652739C2 |
Authors
Dates
2017-03-03—Published
2013-01-29—Filed