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WO/2002/070116A1 |
A method of raw exhaust drawn from a raw exhaust stream (16) is mixed with a diluting gas in a predetermined constant proportion by introducing the raw exhaust sample and diluting gas into respective inlet means and passing the raw exhau...
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WO/2002/071020A1 |
The present invention relates to a proximity sensor system comprising a sensor generating two pulse signals having different polarities in order to detect two different, small, metallic objects and to distinguish the objects. The proximi...
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WO/2002/050554A2 |
An apparatus for detecting and transmitting impact data is disclosed for use in monitoring early-stage development of harmful mechanical conditions for reciprocating machinery. The impact transmitter device includes a single self-contain...
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WO/2002/044671A1 |
A system for evaluating abnormal sound comprising a sound recorder for recording sound generated from an apparatus in the vicinity thereof, and an abnormal sound evaluation unit for evaluating the recorded sound, wherein the sound record...
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WO/2002/044542A1 |
An exhaust pressure sensing system and method for an internal combustion engine. The system includes a pressure sensor (96) positioned to sense exhaust pressure of an internal combustion engine. An attenuator (92) reduces the relatively ...
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WO/2002/042730A2 |
The invention relates to a method for supplying an internal combustion engine with conditioned combustion gas, involving the supply of humidity and/or temperature-conditioned combustion gas. The aim of this method is to largely enable th...
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WO/2002/042630A1 |
The invention relates to a method for providing an internal combustion engine with conditioned combustion gas, in particular, air, preferably on test benches, comprising the introduction of humidity- and/or temperature-conditioned combus...
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WO/2002/025237A1 |
The present invention relates to an arrangement and a method for the estimation of a point of time of the start of a combustion process of an internal combustion engine (1). The arrangement comprises a first sensor (7), which senses at l...
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WO/2001/096146A1 |
A voice-guided self-scanner for performing comparison analysis, diagnosis and preventive maintenance of a vehicle using detected data of the vehicle, which is detachably mounted in the vehicle to compare sensed values from a variety of s...
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WO/2001/086231A1 |
A device for signal evaluation is disclosed, in particular for knock recognition in an internal combustion engine, in which the signals provided by the sensors are digitally evaluated and an error recognition carried out. During the abov...
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WO/2001/082039A1 |
A vehicle diagnostic display unit (100) is provided for performing diagnostic procedures on a vehicle using only one hand. The vehicle diagnostic display unit (100) includes a case (110), a display screen (112), a main support (114), and...
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WO/2001/079803A1 |
The invention concerns a method to measure parameters in the combustion chamber of a piston engine that comprises an ignition system. An alternating voltage is applied across the secondary winding of the ignition coil and the value of th...
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WO/2001/079804A1 |
The invention is directed to an improved mass emissions measuring system (15) for an internal combustion engine (17). In the preferred embodiment, the system is comprised of a particulate monitor (16), four sensor (18, 22, 23 or 29) whic...
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WO/2001/075272A2 |
A Foreign Object Damage (FOD) detection system is disclosed for detecting and analyzing ultrasound or stress waves emitted when an object enters the intake of a turbine engine and impacts one or more of the blades in the engine. Upon det...
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WO/2001/071362A1 |
The present invention relates to a method of determining speed of rotation of a motor (1). The method involves collecting samples (x[n]) with a measuring sensor (2) at a sampling frequency (f¿s?) set on the basis of mechanical vibration...
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WO/2001/065225A2 |
An optical sensing system is used to measure engine torque. A pair of patterns are formed on a driveshaft between a transmission and axle differential. The patterns are spaced apart from one another by a predetermined distance and are fo...
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WO/2001/063436A1 |
The invention relates to a method for the service and maintenance of a machine element, such as a sensor, a pump, an engine, a valve and/or the like, comprising the use of a portable data processing device equipped with a display (D), in...
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WO/2001/061304A1 |
A system (10) for detecting conditions indicative of substandard performance of cylinders (24) in a diesel engine (12) includes an engine control unit (14) disposed in operable communication with the engine (12) and a computer (16) dispo...
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WO/2001/059422A1 |
The invention relates to a method for engine misfire detection in multi-cylinder internal combustion engines with multi-cylinder spark ignition. According to the inventive method, rough running values are detected during every crankshaft...
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WO/2001/057381A2 |
The invention relates to a method for detecting faults in a multicylinder internal combustion engine comprising at least one first motor control appliance that controls at least the injection and ignition for a first portion of cylinders...
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WO/2001/050098A1 |
Vibrations and/or rotations of a machine are sensed, preferably using one or more accelerometers, whose output is sampled by an analog-to-digital converter (ADC) and forms an input signal to a processing system. An alarm that warns of ex...
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WO/2001/048364A1 |
An intake pressure sensor for sensing the intake pressure in an intake pipe (11) used as information for controlling the operation of an engine comprises an intake pressure sensor (12) for sensing the absolute intake pressure, a referenc...
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WO/2001/044772A1 |
The invention relates to a vibration pickup comprising a clamping sleeve. The clamping sleeve (2) can be placed under pressure and mounted on a component that induces vibrations. In order to detect a vibration signal, for example, in a k...
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WO/2001/040753A1 |
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/2001/034972A1 |
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/2001/025746A1 |
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/2001/025745A1 |
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/2001/023735A1 |
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/2001/023728A2 |
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/2001/014845A1 |
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/2001/006224A1 |
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/2001/006223A1 |
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/2001/002720A1 |
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/2000/075500A1 |
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/2000/068659A1 |
Disclosed is a diagnostic test device for motor vehicles. Programmable control devices with self-diagnostic means which control and monitor the engine control and other systems of the motor vehicle in a programme-controlled manner are pr...
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WO/2000/068660A1 |
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/2000/066991A1 |
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/2000/065311A1 |
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/2000/063545A1 |
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/2000/060327A1 |
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/2000/060329A1 |
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/2000/053911A1 |
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/2000/039555A1 |
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/2000/034755A2 |
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/2000/034753A1 |
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/2000/034838A1 |
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/2000/023788A1 |
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/2000/022288A1 |
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/2000/022404A2 |
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/2000/022403A1 |
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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