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Class 73/116 - MOTOR AND ENGINE TESTING


Subclass of Class 73 - Measuring and testing
Definition: Subject matter for performing a test on a motor or engine
No. of patents: 1360
Last issue date: 09/23/2008


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NumberTitleIssue Date
7428459Apparatus for controlling an engine using a cam signal
In an apparatus for controlling an engine, an abnormality determining unit determines whether the crank signal is abnormal based on a state of a input signal for an interval measuring unit. The interval measuring unit measures a time interval from when a predetermin...
09/23/2008
7415351Method and device for detecting an angular position signal for an internal-combustion engine
The present invention relates to a method for detecting an angular position signal representing the rotary motion of a rotating part of an internal-combustion engine. The internal-combustion engine includes at least one combustion chamber. In addition, a speed senso...
08/19/2008
7404391Method and device for operating an internal combustion engine
A method for controlling an internal combustion engine calculates the generated internal torque for each cylinder on the basis of the signal generated by an angle of rotation sensor for detecting the angle of rotation of the crankshaft, so that a rapid and precise r...
07/29/2008
7392714Torque monitoring system and method of monitoring engine torque
An easily packaged torque monitoring system accurately captures driveline torque data for use by engine, transmission or other vehicle controllers. The torque monitoring system utilizes a structural member to hydraulically connect a driving member with a driven memb...
07/01/2008
7389682Method and apparatus for engine torque sensing
An engine torque sensory system (10), adapted for use with an engine-driven vehicle (12) having a flexplate (18), including at least one sensor (26) fixedly attached on the surface of the flexplate (18) and operable to detect defor...
06/24/2008
7389767Method for diagnosis of a volume flow control valve in an internal combustion engine comprising a high-pressure accumulator injection system
The invention relates to an internal combustion engine comprising a high-pressure accumulator injection system wherein the swept volume and the pressure are regulated by means of a volume flow control valve (VCV) and a pressure control valve (PCV). The inventive met...
06/24/2008
7389681Method for monitoring a camshaft adjustment of an internal combustion engine
In a method for monitoring a camshaft adjustment of an internal combustion engine in which a setpoint value of an angular position is compared with an actual value of the angular position, a more differentiated fault diagnosis is achieved in that at least two fault ...
06/24/2008
7380445Turbocharger performance qualification method and apparatus
A method for qualifying turbocharger performance includes the step of operating a turbocharger at a single test condition (402). A set of data may be acquired from a set of operating parameters of the turbocharger (404) operating at the test condition....
06/03/2008
7380449Method and device for testing a fuel metering system
A method and device for testing a fuel metering system. A control unit checks the injector contacts during the initialization phase prior to starting up the fuel metering system. For the test, the injectors are activated by the control unit, and the current values a...
06/03/2008
7370516Method for estimating transmission input torque
A method for estimating transmission input torque is provided. The method includes identifying a plurality of measurable characteristics that influence transmission input torque. Thereafter, transmission input torque values are measured on a sample powertrain operat...
05/13/2008
7369932System and method for turbine engine fault detection using discrete event system modeling
A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis. The fault detection system and method receives sensor taken at multi...
05/06/2008
7367321Erroneous connection detecting method of ignition devices and apparatus of the same
A method and an apparatus detect an erroneous connection between a plurality of ignition devices and a fuel injection control device. A first time interval is measured from an input of an ignition signal for a certain cylinder to an input of the next ignition signal...
05/06/2008
7366639Methods for establishing alerts and/or alert limits for monitoring mechanical devices
A method for establishing an alert or an alert limit for monitoring a mechanical device includes identifying faults that can be recognized by their effect on measured trends and determining a set of available sensors for monitoring the trends. Representative data ar...
04/29/2008
RE40262Method to infer engine coolant temperature in cylinder head temperature sensor equipped vehicles
The present invention provides a method of inferring the engine coolant temperature in cylinder head temperature sensor equipped vehicles including the steps of measuring the cylinder head temperature, calculating the engine coolant temperature from the measured cyl...
04/29/2008
7363807Pump testing apparatus and method
A pump testing apparatus includes a support structure having a first passageway having an inlet, an outlet, and an opening for receiving a pressure gauge, and a second passageway having an inlet, an outlet and an opening for receiving a vacuum gauge; a pressure gaug...
04/29/2008
7366603Method of decoding a CAM signal for an internal combustion engine
The CAM signal of a four-stroke internal combustion engine that also includes a CRANK signal having a sync feature is decoded by defining an observation window of predefined duration with respect a pulse transition of the CAM signal. The CAM signal is uniquely decod...
04/29/2008
7366705Clustering based text classification
Systems and methods for clustering-based text classification are described. In one aspect text is clustered as a function of labeled data to generate cluster(s). The text includes the labeled data and unlabeled data. Expanded labeled data is then generated as a func...
04/29/2008
7363803Failure diagnostic system for fuel vapor processing apparatus
In a failure diagnostic system for a fuel vapor processing apparatus, a processing flow path comprising a vapor line, a canister and a purge line is closed with a vapor control valve and a purge control valve. The interior of the processing flow path is reduced in p...
04/29/2008
7360395Gas sensor
A gas sensor which includes walls delimiting a gas detection chamber, and having an introduction port (or an inlet) through which an observed gas is introduced into the gas detection chamber, a measuring element disposed in the gas detection chamber and measuring co...
04/22/2008
7362095Angle-measurement device and method for fabrication thereof
An angle-measurement device comprising at least one first tracer and one second tracer wherein the tracers are disposed on a common backing and are divided from one another by a separation groove. ...
04/22/2008
7360407Crank angle detecting apparatus and reference angular position detection method for internal combustion engine
A rotor is provided such that the rotor rotates with a crank shaft of an engine. A plurality of detection sections are formed on a rotor periphery at equal angle intervals. A particular detection section is used for detection of a reference crank angle. A pickup is ...
04/22/2008
7360406Method of determining the rest position of an internal combustion engine
The final rest position of an internal combustion engine crankshaft is determined by counting pulses of a CRANK signal responsive to crankshaft rotation after engine turn-off and evaluating the timing of the pulse edges to detect reversals in the direction of cranks...
04/22/2008
7362229Ensuring the performance of mandated inspections combined with the collection of ancillary data
During an inspection discrete checkpoints provide data to a portable reader, enabling a record to be generated identifying each checkpoint visited during an inspection. At least one checkpoint associated with the inspection will convey ancillary data to the portable...
04/22/2008
7360527Method for operating an internal combustion engine
A method for operating an internal combustion engine, particularly of a motor vehicle, is described. The engine has a number of cylinders (Z1, Z2, Z3, Z4), and in each of the cylinders (Z1, Z2, Z3, Z4), one mov...
04/22/2008
7357110Resin intake manifold
A raised portion is formed at a predetermined location on an inside surface of a wall portion of an intake manifold. A gas introduction hole for introducing gas containing water vapor is formed in another predetermined location, other than in the raised portion, in ...
04/15/2008
7359793Method for the detection of misfires in an internal combustion engine
According to methods known in prior art, a parameter which depends on the acceleration of the internal combustion engine is determined by means of a monitoring and analyzing system and is compared with a threshold value. According to the inventive method, the spread...
04/15/2008
7355415Method for on-line monitoring of condition of non-aqueous fluids
A method for determining a condition of a highly resistive fluid in transportation and industrial equipment. The method is suitable for determining the condition of a non-aqueous fluid including applying a high-frequency voltage signal between electrodes immersed in...
04/08/2008
7353697System for mounting an engine to a frame
A system for mounting an engine to a frame in a manner to permit measurement of its torque by a transducer which is isolated from loads induced by installation misalignments, frame deflections and acceleration induced forces. One embodiment of the system is compatib...
04/08/2008
7353698Test stand for simulation of the exhaust flow of an internal combustion engine
This invention relates to a test stand for simulation of the exhaust flow of an internal combustion engine, comprising a cylinder (36) and a base body (39) which is designed as a cylinder head and in which at least on...
04/08/2008
7355365Functional unit of a motor vehicle
A functional unit of a motor vehicle tat has at least one adjustable functional element, a control means for controlling and/or for monitoring the position of the functional element, an angle sensor coupled to the functional element for determining the position ther...
04/08/2008
7353865Method for controlling a valve for an exhaust system
An exhaust gas heat exchanger system of a combustion engine has a bypass duct and a heat exchanger duct with a heat exchanger. A valve is controlled by determining when heat is to be transferred from exhaust gas flowing through the exhaust system to the heat exchang...
04/08/2008
7350405Disturbance-resistant bumpless crankshaft position sensing
Disclosed herein are methods of generating a virtual crankshaft positioning stream of signal pulses that is derived from one or more series of actual crank signals. The virtual stream is useful for monitoring crankshaft positioning and is able to persist despite ele...
04/01/2008
7350602System and method for engine start detection for hybrid vehicles
A method for operating a hybrid vehicle having a primary power generating system and a secondary power generating system coupled via a power transmission assembly for delivery of tractive force for the vehicle. The method includes determining acceleration of input s...
04/01/2008
7347086System and method for burner-based accelerated aging of emissions control device, with engine cycle having cold start and warm up modes
A method for accelerated aging of an automotive catalytic converter under conditions incorporating cold start simulations. ...
03/25/2008
7347087Engine oil leak test system and method
A system and method for testing partially assembled engines for possible oil leaks. The system includes engine pressurizing devices that are automatically controlled by a controller according to a predetermined control program based upon the engine model type being ...
03/25/2008
7349796Apparatus and method for judging a piston position in an engine
Detection of which of a plurality of reference angle positions a crankshaft of an engine arrives at is executed to subsequently determine a crank angle region in which an output pattern of a cam angle signal is determined, based on which of the plurality of referenc...
03/25/2008
7348750Method, apparatus and article for load stabilization
A system, method, and article for protecting a power source for a machine from sudden changes in load. In one embodiment, energy is wasted in a winding of a motor in response to a decrease in a load presented to the power source. ...
03/25/2008
7346448Measuring arrangement and method to determine at intervals the usability potential of at least one operational fluid in an engine
A measuring and testing system for a test piece (1) with at least one operational fluid, particularly to test an internal combustion engine, is provided with at least one measuring arrangement connected to a space (2) of the test piece (1) conta...
03/18/2008
7340889Method and apparatus for treating exhaust gases from combustion sources
A method and apparatus for removing contaminant emissions from the exhaust stream of a combustion device, comprising increasing the dew point of the exhaust gases; reducing the velocity of the exhaust stream; reducing the temperature of the exhaust stream such that ...
03/11/2008
7337692Electronic throttle control with hysteresis device
An electronically controlled pedal assembly with hysteresis includes a mounting bracket and pedal arm and a pedal support arm extending therebetween. The pedal arm is pivotally mounted to the pedal support arm at a pedal arm pivot point. The pedal support arm is piv...
03/04/2008
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