Electrical control of supply of combustible mixture or its constituents

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02DCONTROLLING COMBUSTION ENGINES

F02D41/00Electrical control of supply of combustible mixture or its constituents

F02D41/0002Controlling intake air F02D41/0005during deceleration F02D41/0007for control of turbo-charged or super-charged engines F02D41/0025Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures F02D41/0027the fuel being gaseous F02D41/003Adding fuel vapours F02D41/0032Controlling the purging of the canister as a function of the engine operating conditions F02D41/0035to achieve a special effect F02D41/0037for diagnosing the engine F02D41/004Control of the valve or purge actuator F02D41/0042Controlling the combustible mixture as a function of the canister purging F02D41/0045Estimating, calculating or determining the purging rate, amount, flow or concentration F02D41/0047Controlling exhaust gas recirculation [EGR] F02D41/005according to engine operating conditions F02D41/0052Feedback control of engine parameters F02D41/0055Special engine operating conditions F02D41/0057Specific combustion modes F02D41/006using internal EGR F02D41/0062Estimating, calculating or determining the internal EGR rate, amount or flow F02D41/0065Specific aspects of external EGR control F02D41/0072Estimating, calculating or determining the EGR rate, amount or flow F02D41/0077Control of the EGR valve or actuator F02D41/008Controlling each cylinder individually F02D41/0082per groups or banks F02D41/0085Balancing of cylinder outputs F02D41/0087Selective cylinder activation F02D41/009using means for generating position or synchronisation signals F02D41/0097using means for generating speed signals F02D41/02Circuit arrangements for generating control signals F02D41/0205using an auxiliary engine speed control F02D41/021Introducing corrections for particular conditions exterior to the engine F02D41/0215in relation with elements of the transmission F02D41/022in relation with the clutch status F02D41/0225in relation with the gear ratio or shift lever position F02D41/023in relation with the gear ratio shifting F02D41/0235in relation with the state of the exhaust gas treating apparatus F02D41/024to increase temperature of the exhaust gas treating apparatus F02D41/0245by increasing temperature of the exhaust gas leaving the engine F02D41/025by changing the composition of the exhaust gas F02D41/0255to accelerate the warming-up of the exhaust gas treating apparatus at engine start F02D41/027to purge or regenerate the exhaust gas treating apparatus F02D41/0275the exhaust gas treating apparatus being a NOx trap or adsorbent F02D41/028Desulfurisation of NOx traps or adsorbent F02D41/0285the exhaust gas treating apparatus being a SOx trap or adsorbent F02D41/029the exhaust gas treating apparatus being a particulate filter F02D41/0295Control according to the amount of oxygen that is stored on the exhaust gas treating apparatus F02D41/04Introducing corrections for particular operating conditions F02D41/042for stopping the engine F02D41/045Detection of accelerating or decelerating state F02D41/047Taking into account fuel evaporation or wall wetting F02D41/06for engine starting or warming up F02D41/061the corrections being time dependent F02D41/062for starting F02D41/064at cold start F02D41/065at hot start or restart F02D41/067with control of the choke F02D41/068for warming-up F02D41/08for idling F02D41/083taking into account engine load variation F02D41/086taking into account the temperature of the engine F02D41/10for acceleration F02D41/102Switching from sequential injection to simultaneous injection F02D41/105using asynchronous injection F02D41/107and deceleration F02D41/12for deceleration F02D41/123the fuel injection being cut-off F02D41/126transitionnal corrections at the end of the cut-off period F02D41/14Introducing closed-loop corrections F02D41/1401characterised by the control or regulation method F02D41/1402Adaptive control F02D41/1403Sliding mode control F02D41/1404Fuzzy logic control F02D41/1405Neural network control F02D41/1406with use of a optimisation method F02D41/1408Dithering techniques F02D41/1438using means for determining characteristics of the combustion gases; Sensors therefor F02D41/1439characterised by the position of the sensor F02D41/144Sensor in intake manifold F02D41/1441Plural sensors F02D41/1443with one sensor per cylinder or group of cylinders F02D41/1444characterised by the characteristics of the combustion gases F02D41/1445the characteristics being related to the exhaust flow F02D41/1446the characteristics being exhaust temperatures F02D41/1447with determination means using an estimation F02D41/1448the characteristics being an exhaust gas pressure F02D41/145with determination means using an estimation F02D41/1451the sensor being an optical sensor F02D41/1452the characteristics being a COx content or concentration F02D41/1453the characteristics being a CO content or concentration F02D41/1454the characteristics being an oxygen content or concentration or the air-fuel ratio F02D41/1455with sensor resistivity varying with oxygen concentration F02D41/1456with sensor output signal being linear or quasi-linear with the concentration of oxygen F02D41/1458with determination means using an estimation F02D41/1459the characteristics being a hydrocarbon content or concentration F02D41/146the characteristics being an NOx content or concentration F02D41/1461of the exhaust gases emitted by the engine F02D41/1462with determination means using an estimation F02D41/1463of the exhaust gases downstream of exhaust gas treatment apparatus F02D41/1465with determination means using an estimation F02D41/1466the characteristics being a soot concentration or content F02D41/1467with determination means using an estimation F02D41/1473characterised by the regulation method F02D41/1474by detecting the commutation time of the sensor F02D41/1475Regulating the air fuel ratio at a value other than stoechiometry F02D41/1476Biasing of the sensor F02D41/1477characterised by the regulation circuit or part of it,( F02D41/1479Using a comparator with variable reference F02D41/148Using a plurality of comparators F02D41/1481Using a delaying circuit F02D41/1482Integrator F02D41/1483Proportional component F02D41/1484Output circuit F02D41/1486with correction for particular operating conditions F02D41/1487Correcting the instantaneous control value F02D41/1488Inhibiting the regulation F02D41/1489Replacing of the control value by a constant F02D41/149Replacing of the control value by an other parameter F02D41/1491Replacing of the control value by a mean value F02D41/1493Details F02D41/1494Control of sensor heater F02D41/1495Detection of abnormalities in the air/fuel ratio feedback system F02D41/1496Measurement of the conductivity of a sensor F02D41/1497With detection of the mechanical response of the engine F02D41/1498measuring engine roughness F02D41/16for idling F02D41/18by measuring intake air flow F02D41/182for the control of a fuel injection device F02D41/185using a vortex flow sensor F02D41/187using a hot wire flow sensor F02D41/20Output circuits F02D41/2096for controlling piezo-electric injectors F02D41/22Safety or indicating devices for abnormal conditions F02D41/221relating to the failure of actuators or electrically driven elements F02D41/222relating to the failure of sensors or parameter detection devices F02D41/24characterised by the use of digital means F02D41/2403using essentially up/down counters F02D41/2406using essentially read only memories F02D41/2409Addressing techniques specially adapted therefor F02D41/2412One-parameter addressing technique F02D41/2416Interpolation techniques F02D41/2419Non-linear variation along at least one coordinate F02D41/2422Selective use of one or more tables F02D41/2425Particular ways of programming the data F02D41/2429Methods of calibrating or learning F02D41/2432Methods of calibration F02D41/2435characterised by the writing medium F02D41/2438Active learning methods F02D41/2441characterised by the learning conditions F02D41/2445characterised by a plurality of learning conditions or ranges F02D41/2448Prohibition of learning F02D41/2451characterised by what is learned or calibrated F02D41/2454Learning of the air-fuel ratio control F02D41/2458with an additional dither signal F02D41/2461by learning a value and then controlling another value F02D41/2464Characteristics of actuators F02D41/2467for injectors F02D41/247Behaviour for small quantities F02D41/2474Characteristics of sensors F02D41/2477characterised by the method used for learning F02D41/248using a plurality of learned values F02D41/2483restricting learned values F02D41/2487Methods for rewriting F02D41/249Methods for preventing the loss of data F02D41/2493Resetting of data to a predefined set of values F02D41/2496the memory being part of a closed loop F02D41/26using computer F02D41/263the program execution being modifiable by physical parameters F02D41/266the computer being backed-up or assisted by another circuit F02D41/28Interface circuits F02D41/30Controlling fuel injection F02D41/3005Details not otherwise provided for F02D41/3011according to or using specific or several modes of combustion F02D41/3017characterised by the mode(s) being used F02D41/3023a mode being the stratified charge spark-ignited mode F02D41/3029further comprising a homogeneous charge spark-ignited mode F02D41/3035a mode being the premixed charge compression-ignition mode F02D41/3041with means for triggering compression ignition F02D41/3047said means being a secondary injection of fuel F02D41/3058the engine working with a variable number of cycles F02D41/3064with special control during transition between modes F02D41/307to avoid torque shocks F02D41/3076with special conditions for selecting a mode of combustion F02D41/3082Control of electrical fuel pumps F02D41/3094the fuel injection being effected by at least two different injectors F02D41/32of the low pressure type F02D41/34with means for controlling injection timing or duration F02D41/345Controlling injection timing F02D41/36with means for controlling distribution F02D41/365with means for controlling timing and distribution F02D41/38of the high pressure type F02D41/3809Common rail control systems F02D41/3818for petrol engines F02D41/3827for diesel engines F02D41/3836Controlling the fuel pressure F02D41/3845by controlling the flow into the common rail F02D41/3854with elements in the low pressure part F02D41/3863by controlling the flow out of the common rail F02D41/3872characterised by leakage flow in injectors F02D41/40with means for controlling injection timing or duration F02D41/401Controlling injection timing F02D41/402Multiple injections F02D41/403with pilot injections F02D41/405with post injections F02D41/406Electrically controlling a diesel injection pump F02D41/407of the in-line type F02D41/408of the distributing type