| Patents for F02D 41 - Electrical control of supply of combustible mixture or its constituents (70,958) |
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| 03/03/1994 | WO1994004800A1 Process for monitoring the operation of a catalytic converter |
| 03/03/1994 | WO1994004384A1 Throttle traction control for automotive vehicle |
| 03/03/1994 | DE4328715A1 IC engine with catalytic converter with heating unit for low emission cold start - in which fluid circuit connects thermal storage unit to engine block and uses electrically heated exhaust gas sensor |
| 03/03/1994 | DE4316728A1 Controlled feeding and recycling set=up for fuel fraction from vehicle tank - collects vented components in storage unit for re-emission into inlet manifold when richer mixture is required |
| 03/03/1994 | DE4306509C1 Cam shaft adjusting method for IC engine - using pick=up to ascertain relative rotational torque w.r.t. crankshaft and derive instantaneous actual position |
| 03/03/1994 | DE4228634A1 IC engine combustion air intake delivery evaluation for fuel injection control - using measured flow rate during separation between two intake strokes and previously calculated delivery |
| 03/03/1994 | DE4228279A1 Required air intake and/or charging pressure calculation system for IC engine - corrects initial value using dynamic parameters to ensure engine efficiency |
| 03/02/1994 | EP0479833B1 Knock control by reduction of injection period |
| 03/02/1994 | EP0403615B1 Process and device for detecting an error status in a lambda probe |
| 03/01/1994 | US5291578 Apparatus for controlling a vehicle fuel pump |
| 03/01/1994 | US5291417 Method and arrangement for determining the internal resistance of a lambda probe and for the closed-loop heating control with the aid of the internal resistance |
| 03/01/1994 | US5291170 Electromagnetic actuator with response time calibration |
| 03/01/1994 | US5289809 Internal combustion engine control apparatus |
| 03/01/1994 | US5289808 Fuel injection device |
| 03/01/1994 | US5289807 Bypass air-flow control apparatus for an internal combustion engine |
| 03/01/1994 | US5289717 Air-fuel ratio detecting device |
| 03/01/1994 | US5289684 Charging pressure control apparatus for an internal combustion engine with a dual turbocharger system |
| 03/01/1994 | US5289683 Method for controlling supercharging pressure in an automotive engine |
| 03/01/1994 | US5289678 Apparatus and method of on-board catalytic converter efficiency monitoring |
| 03/01/1994 | CA1327297C Fuel injector assembly for fuel-injected engine |
| 02/24/1994 | DE4328090A1 Fuel vapour take=off system of motor vehicle IC engine - designed for introduction of fuel vapour which is vaporised from fuel contained in engine fuel tank in to engine inlet duct across discharge valve. |
| 02/24/1994 | DE4326911A1 Engine-operating system on mixed fuels - adjusts performance characteristics only after mixture proportions have altered for predetermined time. |
| 02/24/1994 | DE4324312A1 Determn of lean fuel-air mixture limit for IC engine - measuring stream of ions and characteristic value of flowing ion stream in one cylinder of engine immediately after ignition to give lean mixture limiting value. |
| 02/24/1994 | DE4230925C1 Digital position regulator for vehicle electronic throttle control - uses variable regulation function for rapid correction of wide regulation error |
| 02/24/1994 | DE4227165A1 Control circuit for inductive consumer load - uses series ON=OFF switching transistor and pulse-width modulated control transistor for efficient operation |
| 02/23/1994 | EP0583496A1 Procedure for detecting misfire |
| 02/23/1994 | EP0583495A1 Method for the detection and correction of errors in time measurements of rotating shafts |
| 02/22/1994 | US5287839 Fuel injection equipment for internal combustion engine |
| 02/22/1994 | US5287837 Knock suppressing apparatus for internal combustion engine |
| 02/22/1994 | US5287836 Control system for internal combustion engines |
| 02/22/1994 | US5287698 Exhaust gas purifying device for an internal combustion engine |
| 02/22/1994 | CA1327152C Irregularity-detecting method for variable valve-timing type engine |
| 02/22/1994 | CA1327151C Control method for valve-timing changeover in engine |
| 02/17/1994 | WO1994003722A1 Fuel injection pump for internal combustion engines |
| 02/17/1994 | WO1994003717A1 Dilution controlled lean burn system |
| 02/17/1994 | CA2142199A1 Dilution controlled lean burn system |
| 02/16/1994 | EP0583184A1 Method for regulating the idle-running of an internal combustion engine |
| 02/16/1994 | EP0582917A1 An exhaust gas purification device for an engine |
| 02/16/1994 | EP0582719A1 Control device for an engine having variable suction and exhaust valve mechanism and controlling method therefor |
| 02/15/1994 | US5287283 Failure diagnosis device for an engine which compares airfuel ratio and exhaust pressure with a predetermined value |
| 02/15/1994 | US5287281 Computer controlled flow of nitrous oxide injected into an internal combustion engine |
| 02/15/1994 | US5287279 Engine output torque control system |
| 02/15/1994 | US5285762 Method and arrangement for monitoring the operability of a probe heating device |
| 02/15/1994 | US5285757 Arrangement for controlling an actuable element in a motor vehicle having a drive unit |
| 02/15/1994 | US5285676 Air-fuel ratio measurement apparatus and method therefor |
| 02/10/1994 | DE4326351A1 Fault diagnosis of IC engine exhaust gas recirculation system - detecting pressure change when control valve is operated, and checking whether cooling water temp., air intake temp. or engine oil temp. are above reference for correct operation of sensor |
| 02/10/1994 | DE4226309A1 Throttle movement limitation in error condition for automobile engine control - has multi-bit command to motor control circuit that is reduced to limit stroke of throttle in fault occurs |
| 02/10/1994 | DE4225803A1 Kraftstoffeinspritzpumpe für Brennkraftmaschinen Fuel injection pump for internal combustion engines |
| 02/09/1994 | EP0582430A1 System and method to determine cam phase and cylinder identification for a variable cam timing engine |
| 02/09/1994 | EP0582085A2 Fuel metering control system and cylinder air flow estimation method in internalcombustion engine |
| 02/08/1994 | US5284121 Internal combustion engine with evaporated fuel purge system |
| 02/08/1994 | US5284119 Internal combustion engine fuel injection apparatus and system |
| 02/08/1994 | US5284118 Fuel injection control system for internal combustion engine |
| 02/08/1994 | US5284116 Vehicle management computer |
| 02/08/1994 | US5284114 Apparatus and method for controlling an internal combustion engine |
| 02/08/1994 | US5284113 Arrangement in an i. c. engine |
| 02/08/1994 | US5284050 Self-diagnosis apparatus in system for prevention of scattering of fuel evaporation gas |
| 02/03/1994 | WO1994002733A1 Lean burn mixture control system |
| 02/03/1994 | WO1994002730A1 Method of adapting internal-combustion engine air values from a substitute characteristic diagram used to control, on the occurrence of pulsing in the air-aspiration line, the formation of the mixture to suit the currently prevailing outside-air conditions |
| 02/03/1994 | WO1994002729A1 Transport delay adjustment of biased air-fuel ratio |
| 02/03/1994 | DE4325505A1 Electronic control device for automobile engine speed and dynamo - detects electrical load current gradient to reduce energising winding current for maintaining stable engine idling revs |
| 02/03/1994 | DE4325042A1 Control arrangement for air/fuel mixture supplied to IC engine - Has electronic control unit with correcting procedure for position of stepper motor used to operate throttle flap |
| 02/03/1994 | DE4225361A1 Functional testing of secondary air admission into IC engine exhaust - involves measuring lambda value of exhaust gases by sensor supplying electronic control unit for secondary air pump and valve |
| 02/03/1994 | DE4224893A1 Base value fuel metering for IC engine - formed depending on operating parameters of engine and at least at times is superimposed with adjusting variable based on signal from lambda probe |
| 02/02/1994 | EP0581508A2 Multiple functions cam sensing |
| 02/02/1994 | EP0581279A2 An exhaust gas purification device for an engine |
| 02/02/1994 | EP0581151A1 Device for monitoring a sensor |
| 02/01/1994 | US5283742 Excess slip control device for driving wheel |
| 02/01/1994 | US5282451 Engine fueled with mixed fuel and operation control method thereof |
| 02/01/1994 | US5282450 Engine power controller |
| 02/01/1994 | US5282449 Method and system for engine control |
| 02/01/1994 | US5282447 Device for stopping a diesel engine |
| 02/01/1994 | US5282383 Method and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensors system |
| 02/01/1994 | US5282360 Post-catalyst feedback control |
| 02/01/1994 | CA2012431C Method and means for determining air mass in a crankcase scavenged two-stroke engine |
| 01/27/1994 | DE4324506A1 Hot-air exhaust gas cleaner for internal combustion engine - has control unit adjusting alternator output and controlling flow of air pumped through heater into catalytic converter |
| 01/27/1994 | DE4321979A1 Controller of inlet valve of IC engine - facilitates restarting by movement of engine in appropriate direction for optimal camshaft angle and rocker arm ratio settings |
| 01/27/1994 | DE4308811A1 Diesel engine EM actuated fuel metering valve controller - has current sensor feeding back information to controller to determine on and off switching points of valve |
| 01/27/1994 | DE4225495A1 IC engine with lambda control check valve - introduces false air into induction system by special sampling head or by fuel pressure controller. |
| 01/27/1994 | DE4224426A1 Method to limit output of IC engine in motor vehicle - uses control arrangement of intake to adjust intake tube length groups |
| 01/27/1994 | DE4224307A1 Car control element with microcomputer - uses positive car voltage to provide reference voltage to digital=to=analogue converter |
| 01/26/1994 | EP0690954A4 Fuel system for a fuel injected engine |
| 01/26/1994 | EP0580389A1 Exhaust gas purification apparatus for an internal combustion engine |
| 01/26/1994 | EP0579967A2 Method and apparatus to establish the fuel quantity fed to an internal combustion engine |
| 01/26/1994 | EP0579794A1 Process and device for assessing the efficiency of a lambda control system. |
| 01/26/1994 | EP0521052B1 Process and device for monitoring the performance of a catalyst in an internal combustion engine |
| 01/25/1994 | US5282137 Driving wheel slip control system |
| 01/25/1994 | US5280773 Method and apparatus for injecting fuel into a combustion chamber of an air compressing, spontaneous ignition, internal combustion engine |
| 01/25/1994 | US5280770 Variable valve actuation control system |
| 01/25/1994 | US5280707 Apparatus for detecting deterioration of catalyst |
| 01/25/1994 | CA2029501C Idle speed adjusting system for internal combustion engine |
| 01/25/1994 | CA2003293C Air-fuel ratio control system for two-cycle engine |
| 01/20/1994 | WO1994001669A1 Device and method of regulating the start of fuel injection in an otto engine |
| 01/20/1994 | WO1994001668A1 Device and method of correcting the fuel amount supplied to otto engines |
| 01/20/1994 | DE4323967A1 Fuel injection control for diesel engine - has low pressure vane pump and high pressure plunger pump for fuel with closed loop control |
| 01/20/1994 | DE4322344A1 Air-fuel ratio control system for IC engine - Has sensors upstream and downstream of exhaust catalyser to evaluate air-fuel ratio with injectors controlled accordingly |
| 01/20/1994 | DE4223782A1 Air intake control system for car IC engine - has ratio of throttle flap angle to accelerator pedal angle dependent on engine speed and pedal angle itself |
| 01/20/1994 | DE4223520A1 Fuel metering control system for IC engine - Has detectors for engine condition, acceleration demand (pedal position) and vehicle speed to control fuel enrichment |
| 01/20/1994 | DE4223253A1 Motor vehicle control appts. including digital PID regulator - is adaptable to requirements of idling, wheel-slip control, torque control, road speed regulation and accelerator-pedal modes |
| 01/20/1994 | DE4223216A1 Safety operation circuit for electromotor used for accelerator pedal function - triggers emergency function upon detection of power fault or failure to initiate braking action using drive stage diode arrangement. |