CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2010 - IPC F02D41/04 F02D19/08 

FIELD: engines and pumps.

SUBSTANCE: proposed ICE runs on different fuels that differ by air-to-fuel amount ratio stoichiometric relationships. Control device comprises exhaust gas sensor arranged ICE exhaust channel to generate output signal in compliance with air-to-fuel amount ratio, control device with feedback circuit to control air-to-fuel amount ratio in compliance with exhaust gas sensor signal, device for adapting to different fuels so as to correct an error originating due to fuel type in compliance with correction magnitude fed by feedback signals in response to feedback signals calculated during feedback control by air-to-fuel amount ratio, device to recognise refueling to reveal fuel fed into fuel tank and air amount limiter to limit air amount sucked in by ICE unless adapting to fuel is complete. In compliance with the second version, engine control device comprises fuel property sensor arranged in fuel tank or fuel pipe line to define fuel properties, and air amount limiter to limit air amount sucked in by ICE when fuel properties differ as defined by aforesaid fuel properties sensor. In compliance with the third version, control device comprises: fuel property sensor arranged in fuel tank or fuel pipe line to define fuel properties, and air amount limiter to limit air amount sucked in by ICE when fuel properties differ as defined by aforesaid fuel properties sensor.

EFFECT: reliable protection of fuel feed system.

6 cl, 5 dwg