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WO/2001/040753 |
The invention relates to a device for monitoring the combustion processes occurring in the combustion chamber of an internal combustion engine, which comprises a housing (1), which may be built into the wall of the combustion chamber, wi...
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WO/2001/034972 |
The invention relates to methods for temporarily positioning measuring displays for evaluating ion current signals which are detected on internal combustion engines by means of the electrodes of a sparking plug, in an ignition system hav...
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WO/2001/025746 |
The invention relates to the design of engines and can be used in the control and diagnostics of automobile internal combustion engines and/or transmissions. The method of technical control of the internal combustion engine and/or of the...
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WO/2001/025745 |
The invention concerns a test bench module (1) comprising a test cell (4) for receiving an equipment to be tested, provided with means (10, 16) for reproducing operating conditions of the equipment and means for measuring the operating p...
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WO/2001/023728 |
The invention relates to a method for detecting combustion misfiring in internal combustion engines by evaluating segment times wherein a shaft of said combustion engine covers a pre-defined angle segment. The method is characterized by ...
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WO/2001/023735 |
The invention relates to a method for detecting combustion misses in combustion engines. According to said method, a measure of the unsmooth running of the combustion engine is formed and compared with a threshold value which is dependen...
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WO/2001/014845 |
A simulation testing system and method for testing an automobile system or component(s) such as an exhaust system (14) comprises first and second multi-axis simulation tables. One part of the exhaust system is supported by one of the tab...
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WO/2001/006224 |
According to the prior art, the torque of the dragging electric motor is determined, certain torque values being indicative of a faulty engine. The aim of the invention is to provide a method that does not involve expensive torque measur...
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WO/2001/006223 |
The invention relates to a method for detecting the state of a catalytic converter system, whereby the catalytic converter system is arranged in an exhaust gas channel of an internal combustion engine of a motor vehicle, and an exhaust g...
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WO/2001/002720 |
The invention relates to a method for the diagnosis of a sensor (27) in connection with control of a combustion engine (1), whereby the control comprises: feeding fuel under pressure (p) to the engine (1), detecting said pressure (p) by ...
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WO/2000/075500 |
A crank angle position detector of an internal combustion engine, wherein a first rotating body interlocked with a crank shaft has a plurality of detected parts in the rotating direction, the detected parts of the first rotating body are...
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WO/2000/068660 |
The invention relates to a diagnostic test device for motor vehicles which comprises a portable testing apparatus, whereby control units equipped with self-diagnosing means are installed in the motor vehicle. Said control units control a...
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WO/2000/066991 |
The invention concerns a charging machine for a heat engine test stand, comprising at least braking means operating on Foucault currents associated with at least driving electric means, said braking means comprising a ferromagnetic tooth...
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WO/2000/065311 |
The invention concerns a device for automatic identification of a sensor (C1, C2, C3 ...) of parameter(s) used on test stands, said sensor being connected to means analysing data supplied by it, said analysing means requiring to apply th...
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WO/2000/063545 |
A method for identifying particular characteristics of a fuel injection system places a characterization resistor into a power circuit for each fuel injector. The resistance is selected once the characteristics of the fuel injector have ...
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WO/2000/060327 |
The invention relates to a method and to a device for detecting misfiring in internal combustion engines. According to the invention, a measured ionic current signal is subjected to a successive short-term integration and a feature is pr...
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WO/2000/060329 |
An apparatus (10) for delivering an engine to a dynamometer is provided with an exhaust system (16), coolant system (14), electrical system (18), and an engine mounting system (20). The systems decrease the time required to dress an engi...
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WO/2000/053911 |
The invention relates to a method for automatically generating smoothed characteristic diagrams for electronic engine controls of internal combustion piston engines. The invention is characterized in that the adjustment variable combinat...
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WO/2000/039555 |
The invention relates to a method for identifying misfirings in a piston internal combustion engine comprising spark ignition and an engine control provided for controlling electromagnetic actuators that actuate the gas exchange valves. ...
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WO/2000/034755 |
A remote emissions sensing system and method for sensing exhaust emissions from motor vehicles (10) is provided where the system determines the opacity of an exhaust plume (16). The system comprises a radiation source (12) that emits rad...
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WO/2000/034838 |
A modular vehicle diagnostic system (10) includes a plurality of devices (14, 16, 18, and 20) substantially enclosed by individual housings are selectively interconnected for sensing or receiving selected signals from a vehicle (22), for...
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WO/2000/034753 |
A new system and method for detecting engine malfunctions based on crankcase pressure (150) include determining a reference value indicative of current engine operating conditions (152) and using the reference value to determine a crankc...
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WO/2000/023788 |
The invention relates to a method for monitoring an optical system (6) with a front lens (8) directly mounted in a combustion chamber (2). The invention aims at ensuring that availability of the optical system is impaired as little as po...
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WO/2000/022288 |
Disclosed is a device (1) for monitoring the combustion process in internal combustion engines, whereby it is possible to carry out direct monitoring of individual combustion processes, especially individual combustion chambers. Said mon...
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WO/2000/022404 |
A new method for diagnosing and identifying misfiring cylinders in an internal combustion engine is disclosed. A knowledge of the system dynamic model, system boundary conditions, and measured crankshaft torsional response are used to ch...
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WO/2000/022403 |
Method and device for use in connection with tests in motor vehicles, where the result of each test is received when certain conditions prevail, and where a central processing unit in the vehicle makes a decision whether the conditions p...
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WO/2000/020833 |
The invention relates to a method and an arrangement for evaluating combustion processes in an internal combustion engine, using a model which takes the time-variant transmission between pressure and structure-borne noise as a basis for ...
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WO/2000/017496 |
A system and method for obtaining engine diagnostic and prognostic information utilizing current, time and crank position data obtained from the starter motor during the starting of an engine and represented as a starter motor (150) curr...
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WO/2000/017620 |
A vehicle diagnostics interface apparatus (1), for interfacing with a vehicle diagnostics unit having one or more vehicle fault indicator lights (2), comprises: a sensing device (3) for receiving light from the fault indicator light (2) ...
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WO/2000/012992 |
A method and apparatus for automotive testing comprises a base station and at least two handsets adapted to provide a testing function in at least two corresponding technically distinct areas. Embodiments employ Kelvin connectors and/or ...
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WO/2000/006987 |
A method and system of misfire determination includes establishing an acceleration misfire threshold and an acceleration sub-misfire threshold. Then incremental engine position is sensed and a series of acceleration data-points are deriv...
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WO/1999/067617 |
The present invention provides a flowmeter (10) which measures the flowrate of a fuel injector (12) by monitoring the pressure drop across a variable orifice valve (52) by use of a pressure sensor (18) with no moving mechanical parts. Th...
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WO/1999/064737 |
The invention relates to a method for detecting misfire in a piston combustion engine with electromagnetic valve gears which can be variably controlled by means of an electronic engine control that also performs load-dependent control du...
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WO/1999/063318 |
An arrangement for testing engines for vehicles and other drive train assemblies employs magnetic clamping to achieve fixation of the rotatory drive train assembly to a drive arrangement. When the rotatory drive train assembly is a vehic...
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WO/1999/054702 |
The invention relates to a system (8) and a method for configuring and/or parameterizing a diagnostic device (4) for objects (3) that are to be tested. The system consists of a first data object (1) with a set of technological test objec...
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WO/1999/054703 |
The invention relates to an acoustic diagnostic system (D) for carrying out quality control, especially automatic quality control, of test objects (1), especially engines, ceramics, etc. The system comprises sensor technology (2), especi...
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WO/1999/044028 |
A process for detecting a misfire in one or more cylinders (3, 3') of an internal combustion engine, including the following operative steps: sampling the exhaust gas pressure values during at least one engine cycle, the sampling frequen...
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WO/1999/035480 |
An on-board vehicle emissions testing system includes an instrument module adapted to be detachably connected to the exhaust pipe of a vehicle to provide for flow of exhaust gas therethrough. The instrument module includes a differential...
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WO/1999/031478 |
A machine lubrication system monitor (11) collects lubricant pressure (30), flow rate (22), and temperature (26) information and calculates as a function thereof a substantially constant magnitude signal representing normal machine opera...
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WO/1999/028603 |
The invention relates primarily to the monitoring of emissions by motor vehicles, but also to those generated by ships, aircraft and diesel locomotives. The monitoring system can be built into new motor vehicles by the manufacturer or, i...
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WO/1999/026050 |
A life estimation device which numerically measures the damage to a machine such as an engine accurately to estimate the life of the machine accurately without requiring skill. A load map (B) of the two-dimensional distribution of the op...
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WO/1999/022216 |
The present invention relates to the field of engine construction and may be used in the conception and manufacture of parts for internal combustion engines. The purpose of this invention is to optimise the diametrical gaps between the f...
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WO/1999/020993 |
A velocity adaptive method for testing the control of dynamic devices of a system having a position schedule influenced by a dynamic factor is disclosed. The method includes the steps of introducing a step into the position schedule and ...
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WO/1999/021129 |
A method and apparatus for communicating between a host and a motor vehicle, the motor vehicle including an on board computer system having a bus (15) for communicating with a plurality of motor vehicle systems. The apparatus includes an...
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WO/1999/021120 |
A method and apparatus for communicating between a host and a motor vehicle, the motor vehicle including an on board computer system having a bus for communicating with a plurality of motor vehicle systems. The apparatus includes an elec...
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WO/1999/019210 |
An aircraft engine vibration analysis system (10) with at least one vibration sensor (12) proximate the aircraft engine (14) and comprising a vibration analysis module (16). The module (16) is provided with a multiple pin input port (18)...
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WO/1999/015770 |
A process is disclosed for diagnosing internal combustion engines by measuring variables which represent the load of the internal combustion engine. At least one limit value is associated to the individual variables. When the at least on...
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WO/1999/015872 |
The invention relates to a method for evaluating the march of pressure in the combustion chamber of an internal combustion engine, wherein the output signal of at least one cylinder pressure sensor and a crankshaft angle sensor is evalua...
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WO/1999/015873 |
In a process for determining relevant variables which represent the cylinder pressure in the cylinders of an internal combustion engine, the relevant variables are derived from another measured variable and the other measured variable is...
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WO/1999/013310 |
The invention concerns a method for detecting an abnormal disturbance of an internal combustion engine torque and suspending the functioning of a system diagnosing combustion misfiring, operating by analysis of values (Cg,n,i) of a quant...
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