Patents for G01M 15 - Testing of engines (13,067)
09/2000
09/06/2000EP0585237B1 Dynamical system analyser
09/05/2000US6115653 Diagnostic system particularly for an engine management system
09/05/2000US6112575 Method and apparatus for vehicle exhaust gas pollutant mass flow measurement
09/05/2000US6112574 Exhaust gas analyzer and modal mass analysis method by gas trace process using the analyzer thereof
08/2000
08/30/2000EP1031827A2 Method and system for dynamic testing of a vehicle exhaust system
08/30/2000CN1265191A Device for analysing exhaust emissions from motor vehicles
08/29/2000US6112149 Misfire detection system and method using recursive median filtering for high data rate engine control system
08/23/2000CN1055743C Method for recognition of disturbances in operation of diesel engine and device thereof
08/22/2000US6105552 Abnormal combustion detection apparatus and method for internal combustion engine
08/17/2000DE19906056A1 Verfahren und Vorrichtung zum Betreiben eines Thermostatventils Method and apparatus for operating a thermostat valve
08/16/2000EP1027586A1 Method and apparatus for automotive and other testing
08/10/2000WO2000022404A3 Process for diagnosing and locating misfiring cylinder through crankshaft torsional vibration measurement
08/09/2000EP1025544A1 An electronic tag including rf modem for monitoring motor vehicle performance
08/03/2000DE19927254A1 Circuit monitoring state of combustion in internal combustion engine
08/03/2000DE19855745A1 Fault diagnosis and quality grading system for production test of rotating machines uses sensing of rotation noise and oscillation with training of processor.
08/02/2000EP1023687A1 An electronic tag including rf modem for monitoring motor vehicle performance with filtering
08/01/2000US6098013 System and method for monitoring exhaust gas hydrocarbon content in internal combustion engines
08/01/2000US6094974 Self-diagnosing apparatus and method of variable valve timing structure
07/2000
07/27/2000DE19901795A1 Combustion diagnostic system for combustion chamber of combustion system has several guides, each of which carries electromagnetic radiation from assigned space cutouts of combustion chamber
07/25/2000US6094617 Engine power monitoring system
07/25/2000US6094609 Modular wireless diagnostic, test, and information
07/25/2000US6092621 Methods and apparatus for suppressing engine test cell howl
07/25/2000US6092368 Function diagnostic system for an exhaust gas purifying apparatus in an internal combustion engine
07/20/2000WO2000017496A3 System and method for providing engine diagnostic and prognostic information
07/18/2000US6092019 Method of judging monitoring condition for diagnosis of engine
07/18/2000US6092015 Combustion state detecting apparatus for an internal-combustion engine
07/18/2000US6089082 Air estimation system and method
07/18/2000US6089077 Mass fraction burned and pressure estimation through spark plug ion sensing
07/12/2000EP1017979A1 Process for determining relevant variables which represent the cylinder pressure in the cylinders of an internal combustion engine
07/11/2000US6085852 Pipe handling device
07/11/2000US6085582 Vehicle mass emission measurement
07/06/2000WO2000039555A1 Method for identifying misfirings in a piston internal combustion engine
07/06/2000DE19859004A1 Verfahren zur Zylinder vergleichenden Prüfung von Einspritz-Verbrennungsmotoren, insbesondere Kraftfahrzeugmotoren A method for comparative testing of cylinder injection internal combustion engines, in particular motor vehicle engines
07/05/2000EP1015746A1 Device for determining the volume of air entering the cylinder of an internal combustion engine with a supercharger
07/04/2000US6082188 Method for detecting cyclical combustion fluctuations in an internal combustion engine
07/04/2000US6082187 Method for detecting a power loss condition of a reciprocating internal combustion engine
06/2000
06/29/2000DE19924001A1 Combustion condition determination system for IC engine including ignition coil which is formed of transformer with prim. and sec. windings for developing negative HT on HT side of sec. winding if current in prim. winding is interrupted
06/29/2000DE19860197A1 Verfahren zur Erkennung von Zündaussetzern an einer Kolbenbrennkraftmaschine Method for detecting misfires in an internal combustion piston engine
06/28/2000EP1014072A2 Cylinder comparing test procedure for combustion engines with injection, in particular for vehicle engines
06/27/2000US6079381 Valve-timing controller for an internal combustion engine
06/27/2000US6079251 Diesel exhaust analysis system and method of using the same
06/21/2000EP1009987A1 Method for detecting an abnormal disturbance of an internal combustion engine torque
06/21/2000DE19858058A1 Fuel injection system for IC engines has a facility to increase amount during cold start conditions
06/15/2000WO2000034838A1 Modular vehicle diagnostic system
06/15/2000WO2000034755A2 Exhaust opacity measuring device
06/15/2000WO2000034753A1 System and method for detecting engine malfunction based on crankcase pressure
06/15/2000DE19900738C1 Determining combustion chamber pressure in combustion engine; involves treating sensor offset as variable over compression or expansion phases derived from estimated, measured pressures
06/15/2000DE19857462A1 Method to test individual components of vehicle; involves measuring data for all components that affect individual component in different operating states and generating signal course for individual component
06/15/2000CA2353834A1 System and method for detecting engine malfunction based on crankcase pressure
06/14/2000EP1007984A1 Fuel injection diagnostic control device
06/14/2000EP1007945A2 Device for analysing exhaust emissions from motor vehicles
06/14/2000EP1007933A2 Automotive engine misfire detection system including a bit-serial based recurrent neuroprocessor
06/06/2000US6073088 EMS testing system
06/06/2000US6070567 Individual cylinder combustion state detection from engine crankshaft acceleration
05/2000
05/31/2000EP0819215B1 Method for carrying out an ionic current measurement in a combustion engine using a lean fuel mixture
05/31/2000DE19850969A1 Verfahren zum Anzeigen der Fehlerhäufigkeit und der Fehlerfrequenz bei einem taktweise arbeitenden Fehlerinspektionssystem A method for displaying the error rate and the error rate in a cyclically operating defect inspection system
05/30/2000US6070155 Integrated automated analysis and repair
05/30/2000US6070111 Vehicle diagnosing apparatus
05/30/2000US6067847 Running quality evaluator for an internal combustion engine
05/25/2000DE19950484A1 System und Verfahren zur Detektion von Fehlzündungen System and method for detecting misfire
05/24/2000EP1002186A2 Measurement of contaminant components in exhaust gas and reduction of excessive contaminant emissions during cold starts and while driving
05/18/2000DE19850990A1 Automobile electronic control device linked to diagnostic testing device has memory loaded with data, documentation information or parameter files required for operation of diagnostic testing device
05/11/2000DE19850881A1 Gearbox and engine testing involves reducing measurement data to data records that are stored for comparison with new measurement data and/or data records
05/10/2000EP0999439A2 Method for indicating the multiplicity of errors and error frequency by a stroke working error inspection system
05/09/2000US6061624 Multi-cylinder engine combustion state diagnosis apparatus and method
05/09/2000US6061614 Electronic tag including RF modem for monitoring motor vehicle performance
05/09/2000US6058767 Measurement of wheel bearing end play
05/09/2000US6058766 Crank angle detector
05/04/2000DE19847210A1 Verfahren und Vorrichtung zum mechanischen Prüfen des Ventiltellers von Keramikventilen Method and apparatus for the mechanical testing of the valve disc of ceramic valves
05/04/2000DE19826179A1 Measuring exhaust gases of any vehicle or craft to determine efficiency of anti-pollution components e.g. catalysts
05/02/2000US6055852 Method and apparatus for estimation of relative cylinder compression balance by cranking speed analysis
04/2000
04/27/2000WO2000023788A1 Method for monitoring an optical system with a front lens directly mounted in a combustion chamber and device for implementing said method
04/27/2000DE19813671C1 Method for testing internal combustion engines in motor vehicles; has electromotor to drive crankshaft round, sensor to record crankcase engine oil pressure and torque recorder to attach to crankshaft
04/26/2000EP0995892A1 Method for monitoring the smooth running control of an internal combustion engine
04/26/2000EP0874981B1 Method of operating an ignition
04/25/2000US6055470 Hot shutdown monitor for internal combustion engines
04/25/2000US6055469 Fault determining device for torque transmission state sensor, and engine misfiring diagnosis device
04/25/2000CA2239915C Digital engine analyzer
04/20/2000WO2000022404A2 Process for diagnosing and locating misfiring cylinder through crankshaft torsional vibration measurement
04/20/2000WO2000022403A1 Method and device for use in connection with tests in motor vehicles
04/20/2000WO2000022288A1 Device for monitoring the combustion process in internal combustion engines
04/20/2000DE19846527C1 Testing method for turbocharged internal combustion (IC) engine, such as engine braking testing by adjusting exhaust gas turbine into throttled position and closing braking valves then comparing charging pressure with required value
04/20/2000DE19846526C1 Testing method for turbocharged internal combustion engine, such as engine braking tested by adjusting exhaust gas turbine into throttled position and comparing detected engine operating parameter with required parameter value
04/18/2000US6050135 Spark plug port compression cap
04/13/2000WO2000020833A1 Method and arrangement for evaluating combustion processes in an internal combustion engine
04/13/2000DE19846356A1 Arrangement for monitoring combustion process in combustion engines has component that can be introduced into combustion chamber contg. waveguide for infrared or visible light
04/13/2000DE19845512A1 Arrangement for detecting processes in working internal combustion engine combustion chamber has ultraviolet transmission arrangement, image converter, control and evaluation device
04/12/2000EP0992780A1 Method of determining atmospheric pressure
04/06/2000DE19845232A1 Verfahren und Vorrichtung zur Bewertung von Verbrennungsvorgängen an einer Brennkraftmaschine Method and apparatus for evaluating combustion processes in an internal combustion engine
04/06/2000DE19842148A1 System zum Glühen und Ionenstrom-Messen und Ionenstrom-Glühkerzen für dieses System System for annealing and ion flow measurement and ion current glow plugs for this system
04/05/2000EP0712509B1 Virtual continuous emission monitoring system with sensor validation
04/04/2000US6044700 Aircraft equipment configuration identification interface guide
03/2000
03/30/2000WO2000017620A1 Vehicle diagnostics interface apparatus
03/30/2000WO2000017496A2 System and method for providing engine diagnostic and prognostic information
03/30/2000DE19851285C1 Fuel injector testing device
03/30/2000DE19809792C2 Vorrichtung zur Messung der Emission und/oder Absorption eines heißen Gases oder Plasmas Apparatus for measuring the emission and / or absorption of a hot gas or plasma
03/30/2000CA2344333A1 Vehicle diagnostics interface apparatus
03/29/2000CN1248700A Method for testing performance of two-fuel car
03/23/2000DE19942901A1 Rotation sensor for detection of rotation angle transmitted from outside, especially for detecting state of throttle valve of automobile; has angle detection arrangement to detect rotation of rotation member engaging with drive shaft
03/22/2000EP0987423A2 Object-oriented diagnostic apparatus for vehicle controller