| Patents for F02D 41 - Electrical control of supply of combustible mixture or its constituents (70,958) |
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| 04/26/1994 | US5305662 Drive by wire control device for an internal combustion engine and a continuous variable transmission using engine torque correction means based on acceleration to determine a rate-of-change of speed-ratio correction means |
| 04/21/1994 | DE4341213A1 Setting and controlling vehicle retarder mechanism - employing EM controlled proportional pressure valve and two=way diverter for integrated regulation of retarder and accelerator |
| 04/21/1994 | DE4335560A1 Regulator for air=fuel mixt. for IC engine - has two oxygen@ sensors in exhaust, one either side of catalytic converter, feeding ECU controlling injectors |
| 04/20/1994 | EP0593101A2 Fuel control system for internal combustion engine |
| 04/20/1994 | EP0593053A1 Fuel supply system for internal combustion engines |
| 04/20/1994 | EP0487554B1 Idle running rotary actuator |
| 04/19/1994 | US5305220 Apparatus for electronically measuring the speed of internal combustion engines and method of operating such apparatus in monitoring an internal combustion engine |
| 04/19/1994 | US5305216 Event detector used vehicle control apparatus |
| 04/19/1994 | US5305213 Driveline torque limit control strategy-using SAE J1922 type engine control |
| 04/19/1994 | US5304910 Device for controlling the electrical power supply of a stepping motor and stepping motor equipped with such a device |
| 04/19/1994 | US5303580 Method and arrangement for determining the state of deterioration of a catalyzer |
| 04/19/1994 | US5303548 Device for determining deterioration of a catalytic converter for an engine |
| 04/14/1994 | WO1994008134A1 Controlling device for multi-cylinder internal combustion engine |
| 04/14/1994 | WO1994008130A1 Method for the continuously variable control of cam spread |
| 04/14/1994 | WO1994007706A1 Integrated engine and transmission control system |
| 04/14/1994 | DE4334928A1 System for equalising torque during ratio change of automatic gearbox - has sensors for establishing torque before and after change for comparison with stored characteristics related to main vehicle parameters |
| 04/14/1994 | DE4334090A1 Air flow measurement system mixing temp. and flow signals - converts analogue temp.-dependent voltage and flow-dependent pulse repetition frequency into single signal for transmission |
| 04/14/1994 | DE4333424A1 Diesel engine combustion regulator with engine operating condition detectors - has first units for relative redn. of combustion temp. corresp. to detected engine operating conditions and second units for lengthening time of ignition retardation |
| 04/14/1994 | DE4234420C1 Controlling operation of IC engine of motor vehicle - using stored characteristic addressed by engine operating point for calculating temp. of engine exhaust component |
| 04/14/1994 | DE4217138A1 Digital position controller for road vehicle throttles - has PID control actions summed with integral action limited and proportional plus derivative wide ranging |
| 04/14/1994 | CA2117272A1 Integrated engine and transmission control system |
| 04/13/1994 | EP0591744A1 Control system for internal combustion engines |
| 04/13/1994 | EP0591283A1 A method for determining the rotational position of a crankshaft of an internal combustion engine. |
| 04/13/1994 | EP0591139A1 Process and device for controlling the air supply to an internal combustion engine. |
| 04/13/1994 | EP0506832B1 Method and device for storing intermittent functional faults of a physical system and of context variables of these faults |
| 04/12/1994 | US5303348 Method of arbitrating access to a data bus and apparatus therefor |
| 04/12/1994 | US5303168 Engine operation to estimate and control exhaust catalytic converter temperature |
| 04/12/1994 | US5301648 Electronic control device for an internal combustion engine |
| 04/12/1994 | US5301501 Device for determining deterioration of a catalytic converter for an engine |
| 04/12/1994 | CA1328383C Fuel supply system with pneumatic amplifier |
| 04/07/1994 | DE4310145A1 Multi-cylinder IC engine with at least two groups of cylinders - has individual air-fuel mixture supply, and exhaust gas pipelines assigned to the cylinder groups and opening out into common exhaust gas pipe. |
| 04/07/1994 | DE4232973A1 Adjusting torque of four stroke IC engine with throttle valve - involves establishing whether gear changing is activated with automatic drive and if gear change is determined, specifying desired torque for non-gear changing. |
| 04/05/1994 | US5301126 Method of processing a signal from a thermal type flow sensor |
| 04/05/1994 | US5299550 Detecting device and method of an abnormality in an air-fuel ratio control system |
| 04/05/1994 | US5299549 Method of controlling the fuel-air ratio of an internal combustion engine |
| 04/05/1994 | US5299546 Air-fuel ratio control apparatus of internal combustion engine |
| 04/05/1994 | US5299545 Evaporative fuel-processing system for internal combustion engines |
| 04/05/1994 | US5299544 Evaporative fuel-purging control system for internal combustion engines |
| 04/05/1994 | US5299539 Method for controlling rotational speed of an internal combustion engine |
| 04/05/1994 | US5299423 Air supply system for supercharged internal combustion engine |
| 04/05/1994 | CA2017523C Method and means for determining air mass in a crankcase scavenged two-stroke engine |
| 03/31/1994 | WO1994007015A1 Electronic fuel injection system for large compression ignition engine |
| 03/31/1994 | WO1994007014A1 Device for identifying the position of at least one shaft having a reference mark |
| 03/31/1994 | DE4332446A1 Fuel pressure regulator having two chambers sepd. by flexible diaphragm |
| 03/31/1994 | DE4331853A1 Internal combustion engine - has control device for air-fuel mixture which changes lambda during engine warming-up phase according to preset characteristic |
| 03/31/1994 | DE4331153A1 Evaluation criteria generation for exhaust gas catalyser and lambda probe - using voltage amplitude, regulation position and/or regulation frequency to generate fault-specific evaluation criteria |
| 03/31/1994 | CA2122486A1 Electronic fuel injection system for large compression ignition engine |
| 03/30/1994 | EP0589517A1 Method of predicting air flow into a cylinder |
| 03/30/1994 | EP0589211A2 Control and evaluation circuit for an air massflowmeter |
| 03/29/1994 | US5298880 Electronic control device |
| 03/29/1994 | US5298865 Connecting circuit for connecting a lambda probe to a control apparatus of an internal combustion engine and test method for said circuit |
| 03/29/1994 | US5298545 Basic calcium aluminum hydroxy phosphites, a process for their production and their use |
| 03/29/1994 | US5297649 Apparatus for controlling output from engine on crawler type tractor |
| 03/29/1994 | US5297532 Supercharging pressure control system for supercharged internal combustion engines |
| 03/29/1994 | US5297531 Fuel supplying device for internal combustion gasoline engine |
| 03/29/1994 | US5297525 Method for determining the quantity of fuel injected |
| 03/24/1994 | DE4331722A1 Air flow meter for vehicle engine control - contains heat generating resistance temp. sensor with controlled current source |
| 03/24/1994 | DE4326498A1 Diagnosis and control of system functions, e.g. for vehicles - involves defining correction measure sequences according to detected subsystem faults |
| 03/24/1994 | DE4231449A1 Tractive power controller for combustion-engine vehicle - incorporates fault-tolerant combination of air supply controls to independently operable subdivisions of engine |
| 03/24/1994 | DE4231432A1 Digitally controlling power output of IC engine - using register latch set to predetermined non-critical value for PWM upon microprocessor failure |
| 03/23/1994 | EP0588593A2 Engine with pre-chamber |
| 03/23/1994 | EP0588123A1 System for monitoring the efficiency of a catalyst, in particular for motor vehicles |
| 03/23/1994 | EP0587936A1 Control device, particularly for use in a motor vehicle |
| 03/23/1994 | EP0489789B1 Fuel-injection system for an air-compression internal-combustion engine |
| 03/22/1994 | US5297064 Sensor lag compensation |
| 03/22/1994 | US5297048 Angular position extrapolation of a rotating crankshaft corrected for crankshaft acceleration and deceleration |
| 03/22/1994 | US5297047 Diagnostic arrangement for use with automotive engine systems |
| 03/22/1994 | US5297046 System and method for learning and controlling air/fuel mixture ratio for internal combustion engine |
| 03/22/1994 | US5295472 Apparatus for detecting malfunction in evaporated fuel purge system used in internal combustion engine |
| 03/22/1994 | US5295471 Electronic engine control interface |
| 03/22/1994 | US5295416 Air-fuel ratio control method for internal combustion engines |
| 03/17/1994 | DE4230616A1 Einrichtung zur Erkennung der Stellung wenigstens einer, eine Referenzmarke aufweisenden Welle Means for detecting the position of at least one, a reference mark having wave |
| 03/16/1994 | EP0586408A1 Test method for a device for injection of air into the exhaust gases of an internal combustion engine. |
| 03/15/1994 | US5293855 Electronic throttle valve drive unit |
| 03/15/1994 | US5293853 System for controlling an internal combustion engine |
| 03/15/1994 | US5293852 Method and arrangement for the open-loop and/or close-loop control of an operating variable of an internal combustion engine |
| 03/15/1994 | US5293741 Warming-up system for warming up an engine for an automotive vehicle |
| 03/15/1994 | US5293740 Method and arrangement for controlling the quantity of fuel for an internal combustion engine having a catalytic converter |
| 03/15/1994 | CA2027090C Idle speed control apparatus and method for an internal combustion engine |
| 03/15/1994 | CA2021651C Engine speed control apparatus for an internal combustion engine |
| 03/10/1994 | DE4329835A1 Skid regulating system for motor vehicle - delays ignition timing or interrupts fuel feed to cylinders when skid of drive wheels is too great |
| 03/10/1994 | DE4229773A1 IC engine cylinder identification for ignition and=or fuel injection control - provides ignition pulse for each second rotation of crankshaft upon abnormal camshaft phase signal |
| 03/10/1994 | DE4229540A1 Controlling Diesel IC engine - initially activating power-determining regulating mechanism in first stage so that it assumes a start position, and operating starter in following stage |
| 03/10/1994 | DE4229539A1 Duty ratio measurement circuit for IC engine signal having different phases - has first counter for repetitively counting through range and second counter for counting number of cycled ranges, and counts out end value of second counter when phase of signal changes to obtain final result |
| 03/10/1994 | DE4229409A1 Safety device for automatic switch=off of IC engine fuel pump - causes surplus fuel to engine requirement to be fed back via return flow pipe to fuel tank |
| 03/09/1994 | EP0586176A2 Control system for internal combustion engines |
| 03/09/1994 | EP0585900A1 An exhaust gas purification device of an engine |
| 03/09/1994 | EP0585746A2 Fuel injection controller for use in an internal combustion engine |
| 03/09/1994 | EP0530235B1 Device for adjusting the throttle valve of internal combustion engines |
| 03/08/1994 | US5293553 Software air-flow meter for an internal combustion engine |
| 03/08/1994 | US5293317 Automotive multiple memory selector apparatus |
| 03/08/1994 | US5293299 Fuel pump control circuit |
| 03/08/1994 | US5291965 Engine output control system for vehicle |
| 03/08/1994 | US5291873 Method and arrangement for determining a parameter of a lambda controller |
| 03/08/1994 | US5291865 Internal combustion engine |
| 03/08/1994 | US5291803 Automotive vehicle controlling apparatus with failure judging facility |
| 03/08/1994 | US5291673 Oxygen sensor system with signal correction |
| 03/03/1994 | WO1994004809A1 Self-diagnosing apparatus of vehicle |
| 03/03/1994 | WO1994004808A1 Self-diagnosing apparatus of vehicle |
| 03/03/1994 | WO1994004804A1 A method of controlling a large two-stroke turbocharged internal combustion engine and an engine for use in this method |