Abstract: A dimensioning apparatus for generating a dimensional drawing from a model includes an element database with predetermined element names. A plurality of model elements can be associated with corresponding element names. The apparatus also includes a model sectioning tool operable to section the model to thereby generate at least a portion of the model elements. The apparatus further includes a dimensioning tool with a plurality of predetermined dimension names and a plurality of dimensioning algorithms associated with corresponding dimension names. At least two of the model elements are utilized by each of the dimensioning algorithms to thereby automatically detect dimension values of the model. The dimensioning tool is further operable to associate the detected dimension values with corresponding ones of the dimension names. In addition, the dimensioning apparatus includes a plotting tool operable to output the dimensional drawing showing the dimension values of the model detected by the dimensioning tool.

Abstract: The invention relates to a method and device (10) for controlling the injection of reducing agent upstream from a catalyst (4) in an exhaust line (2) from a combustion engine. According to the invention, the injection of reducing agent in the exhaust line is controlled on the basis of result of comparison between a calculated accumulation actual value (A1) and a calculated accumulation setpoint value (A2). The invention also relates to a computer program comprising program code for implementing said method, a computer program product comprising a medium which is readable by an electronic control unit and has stored on it a computer program intended to cause an electronic control unit to implement said method, and an electronic control unit.

Abstract: A system designed to simulate an internal combustion engine having improper valve timing is provided. The purpose of the simulation system is to calibrate and/or validate a proprietary cam-crank correlation diagnostic algorithm. The simulation system includes a simulator module that communicates with crankshaft and camshaft position sensors and an engine control module. The simulator module includes: a first selector that selects a shift value for shifting a periodic signal; and a modification module that receives a camshaft position signal from the camshaft position sensor and that generates a modified camshaft position signal based on the crankshaft position signal and the shift value.

Abstract: An integrated engineering analysis system comprises: a) a first integrated computational process, the first process being comprised of a plurality of computational solvers adapted to compute characteristics of a first component; b) a second integrated computational process, the second process being comprised of a plurality of computational solvers adapted to compute characteristics of a second component; and c) communication paths between corresponding computational solvers of the first and second computational processes.

Abstract: A method for performing analytical engineering analyses on a plurality of components comprises the steps of: a) performing a first integrated computational process, the first process being comprised of a plurality of computational solvers adapted to compute characteristics of a first component; b) performing a second integrated computational process, the second process being comprised of a plurality of computational solvers adapted to compute characteristics of a second component; and c) communicating results back and forth between corresponding computational solvers of the first and second computational processes; and d) repeating the first and second computational processes.

Abstract: Provided is a simulation device including: a simple model computing portion for generating simulation information by correcting measured information sampled on a real vehicle on the basis of control information input from an electronic control unit; and an outputting portion for outputting the simulation information generated by the simple model computing portion to the electronic control unit. The simulation device generates the simulation information generated by the simple model computing portion as new measured information.

Abstract: A computer-aided method suitable for assisting in the design of an aircraft by providing the dimensioning aerodynamic forces and other relevant values comprising the following steps: a) Selecting a set of parameters of the aircraft, being said aerodynamic forces and other relevant values dependant of said parameters; b) Performing flow field CFD RANS computations for a number N1 of different combination of values of said parameters; c) Obtaining said aerodynamic forces and other relevant values for whatever combination of values of said parameters through a reduced-order model, generated by computing the POD modes of the flow variables, expanding the flow variables using said POD modes and obtaining the POD coefficients of said expanded flow variables using a genetic algorithm that minimizes the error associated to the expansion of the Navier-Stokes equations. The invention also refers to a system for carrying out said method.

Abstract: Illustrative computer-executable methods, systems, and computer software program products predict cruise orientation of an as-built airplane. In illustrative embodiments, nominal orientation of an as-built airplane is input. Deviation from the nominal orientation of the as-built airplane is automatically computed, and the computed deviation from the nominal orientation of the as-built airplane is applied to the nominal orientation of the as-built airplane.

Abstract: A spacecraft emulation system for emulating the operation of a spacecraft and the operation of a plurality of ground stations is coupled to spacecraft status and control clients that request connections to one of the plurality of simulated ground station ranging and tracking servers. The connection requests are made to a common address with a port address that is unique to a specific ground station. Separate range servers and tracking servers are instantiated for each ground station and return data specific to the ground station. The spacecraft emulation system determines ranging and tracking data for the plurality of simulated ground stations but supplies said data on a ground station by ground station basis. The status and control system transparently determines which ground station is simulated.

Abstract: There is provided a method, device and system for modeling a road network graph, comprising the steps of receiving information data from a plurality of vehicles, said information data comprising at least positional data, and modeling said road network graph in accordance with said received data.

Abstract: A system and method for controlling soot regeneration in a catalyst soot filter (“CSF”) of an exhaust system for a diesel engine by measuring the inlet temperature of a diesel oxidation catalyst (“DOC”) coupled to the CSF, determining a target light off temperature for the DOC, injecting a first fuel amount into a cylinder of the engine to cause the DOC inlet temperature to approach the target light off temperature, measuring the CSF inlet temperature and pressure across the CSF, determining a target CSF inlet temperature for regeneration, injecting a second fuel amount for combustion in the DOC to cause the CSF inlet temperature to approach the target CSF inlet temperature.

Abstract: A train simulator, including a microprocessor, a display and an input device for the microprocessor. A program drives the display with the track data during simulation, determines if an exception has occurred during the simulation; and provides a multimedia message if an exception has occurred.

Abstract: A method and system providing for tire tread design with improved noise characteristics is disclosed. The volume of air created by the lateral grooves that separate each tread block, referred to as a void, is computed at various sampling areas around a tire to generate a void function. The void function is measured at the boundaries of the tire footprint. The footprint of the tire is the portion of the tire that is in contact with the road surface. There is a correlation between the void function, and tire noise. Depending on the tread design, the void function changes as the tire rotates. By minimizing fluctuation in the void function over the course of a complete tire rotation, the tire noise can be reduced.

Abstract: A system, method, and computer-readable medium including instructions for predicting a characteristic of an object is described. The system includes an object model comprising a thin crack geometry representation of at least a portion of the object; a boundary condition model of a predetermined process applicable to the object (FIG. 8, Input Data); and a simulator module (FIG. 8, Run the EPD Simulator) for simulating the application of the output (FIG. 8, Output Results) a predicted value of a predetermined characteristic of the object.

Abstract: A system and method for knowledge based development of interior models for configurable spaces, including passenger vehicles includes a database containing rules and parameters, a computer-aided design system, a user interface, and programmatic logic allowing aspects of the vehicle to be automatically changed upon a change initiated by a user, to maximize space and maintain compliance with the rules and parameters.

Abstract: A method for illustrating potential benefits resulting from revised navigation procedures to a customer is described. The method includes preparing a model for a revised navigation procedure, determining a landing probability for both an existing minimum separation procedure and a minimum separation determined utilizing the revised navigation procedure, calculating a benefit associated with a difference in the landing probabilities, and validating the revised navigation procedures through demonstration and use of the revised navigation procedure model on a computer-based flight simulation program.

Abstract: A computer implemented method for generating a section cut in a model of a part. A location on the part is identified. An axis system is created at the location in the model of the part, wherein the axis system has an axis that is normal to a surface at the location in the model of the part. Section cuts intersecting the surface and plies below the surface are created. A plurality of sampling points on the surface is identified based on the section cuts. Core sampling is preformed using the plurality of sampling points to generate sampled data.

Abstract: A finite element analysis (FEA) based coil spring design method that utilizes a reverse engineering based concept. The method involves first designing a desired jounce profile, which is typically an output in the conventional FEA based design, and then reversely determining the corresponding free profile necessary for manufacturing a spring having desired performance specifications.

Abstract: A system and method of planning the movement of plural trains over a network of track by simulating the movement of the trains over the network of track.

Abstract: A distributed simulation system is composed of simulator stations linked over a network that each renders real-time video imagery for its user from scene data stored in its data storage. The simulation stations are each connected with a physics farm that manages the virtual objects in the shared virtual environment based on their physical attribute data using physics engines, including an engine at each simulation station. The physics engines of the physics farm are assigned virtual objects so as to reduce the effects of latency, to ensure fair fight requirements of the system, and, where the simulation is of a vehicle, to accurately model the ownship of the user at the station. A synchronizer system is also provided that allows for action of simulated entities relying on localized closed loop controls to cause the entities to meet specific goal points at specified system time points.

Abstract: A system, method, apparatus and product for designing, on a display device, a geometric shape is disclosed. The method comprises the steps of displaying an initial set of similarly structured model exemplars on a display device, selecting a chosen set of models from the initial set of similarly structured model exemplars to apply to a model mix, mixing the set of models consisting of a first portion and a second portion to form a currently displayed shape, providing on the display device at least one selectable feature for manipulating the currently displayed shape, and applying a constraint of the selectable feature to the displayed shape to update both the first portion and the second portion of the currently displayed shape into a new geometric shape design. In a particular implementation, the first portion of the geometric shape is an automobile and the second portion is a standardized human occupant representation.

Abstract: A method of modelling a flight of an aircraft using at least one computer system is disclosed. In one embodiment, the method includes: sourcing flight details from at least one data source using at least one data acquisition system, the flight details representative of the activity of the aircraft within a flight information region, and compiling a flight model from the flight details using a processing system, the flight model indicating the activity of the aircraft over the duration of the flight in two or more FIRs or for an entire flight undertaken in a single FIR.

Abstract: A method of inspecting an internal feature of a gas turbine component includes removing a portion of the turbine component to expose the internal feature, treating the surfaces of the internal feature to provide the surfaces with a substantially uniform coloration, generating an electronic model of the internal feature, analyzing the electronic model generated with reference to a nominal electronic model, and providing an output based on the analysis of the electronic model generated.

Abstract: The invention concerns a method for generating a calculation model, in particular a finite element calculation model, for a mechanical structure, in particular a mechanical structure of a motor vehicle, such as a body-in-white, said method involving the following steps: a) preparing the mechanical structure from which a calculation model is to be generated; b) cleaning the mechanical structure; c) applying reference points to the cleaned and assembled mechanical structure; d) scanning the assembled mechanical structure in order to generate geometric data pertaining to the assembled mechanical structure, from the individual parts of the assembled mechanical structure and the reference points; e) at least partly dividing the assembled mechanical structure into individual parts, which cannot be completely detected when scanning the assembled mechanical structure; f) scanning the individual parts alone or in conjunction with at least one add-on part attached to each individual part in order to generate correspond

Abstract: The present invention relates to optimization analysis achieving a target value and provides a device, method and program ensuring improved analysis efficiency and analysis accuracy. The device includes an analysis unit (CPU 14), an evaluation unit (CPU 14) and a condition modification unit (CPU 14). The analysis unit executes an analysis with analysis conditions imparted thereto. The evaluation unit evaluates the analysis results. The condition modification unit modifies the analysis conditions imparted to the analysis unit, based on the evaluation results. An optimum solution is thus derived by performing one or more analyses through the modification of the given analysis conditions.

Abstract: The present invention provides a method for analyzing airflow through a vehicle radiator and identifying how cooling openings in the vehicle affect airflow through the vehicle radiator. A plurality of pathlines each describing airflow through a vehicle front end and including a position identifier and velocity magnitude are computed. A plurality of intersection points are calculated to identify locations within a vehicle radiator that intersect with a generated pathline to identify pathlines from which air flows through the vehicle radiator. One or more elements are generated from the intersection points using a triangulation method, such as Delauney triangulation, so that the generated elements include intersection points as nodes and are non-overlapping. An airflow rate is calculated for each element based on the velocity magnitudes of the pathlines associated with the intersection points included in the element and the element area.

Abstract: A support vector machine with wavelet kernel was developed for accurate modeling of nonlinear systems. A method of providing an optimized model of a nonlinear system includes using a support vector machine (SVM) having a wavelet kernel, where support vectors include a family of multidimensional wavelets. Training the SVM allows optimization of the number of support vectors, the weights of the support vectors, and the translation factors of the support vectors. Use of a novel linear programming approach reduces computational demands required for training, allowing optimized support vectors to give an optimized model of the nonlinear system. Further, on-line retraining is possible, so that the model can be adapted to changing conditions.

Abstract: A system for the nondestructive evaluation of aircraft comprising a plurality of positional transmitters forming a perimeter around a test airplane and an inspection station within the perimeter. The inspection station includes a moveable cart, a nondestructive testing device coupled the cart, and a computer coupled to the cart and nondestructive testing device. The computer configured to receive aircraft positional data from positional receivers mounted on an aircraft and overlay a model of the aircraft on the received aircraft positional data to determine a coordinate system for the aircraft. The computer is further operable to determine the location of the cart from data received from onboard positional receivers, the location of the cart referenced to the coordinate system for the aircraft.

Abstract: A solution for further automating the identification, processing, and/or routing of rail vehicles is provided. Each individual rail vehicle in a series of rail vehicles is identified and measurement data is acquired for the rail vehicle. The measurement data is analyzed and the rail vehicle is automatically routed based on the analysis. The rail vehicle can be routed to an outbound track based on a destination, to a maintenance shop for repair, and/or to a local track for repair and/or re-measurement. The solution can further incorporate expert systems and data mining to reduce the number of rail vehicles that are unnecessarily routed for repair and/or inadvertently allowed to pass with one or more unsafe conditions.

Abstract: In a road traffic simulation apparatus that expresses a plurality of mobile units and road traffic environments on a computer to simulate traffic situations in association with a plurality of mobile units, each of the mobile units is expressed by a combination of a driver model, a model of driving operations of a virtual driver, and a vehicle dynamics model, a model of physical behaviors of a mobile unit. The mobile units are programmed to travel independently to each other in a road traffic environment that is expressed on the computer.

Abstract: A method for tire parameter derivation, tire cornering characteristic calculation and tire design is used with a tire dynamic model constituted by using a plurality of tire dynamic element parameters including stiffness and friction coefficient and parameter defining a distribution of contact pressure of the tire. The parameters and tire cornering characteristic are derived by using the combined sum of squared residuals being obtained by weighted addition of a first sum of squared residuals of lateral force and a second sum of squared residuals of self-aligning torque. The tire dynamic model is a model for calculating a lateral force and for calculating a self-aligning torque separately as a lateral force-based torque component generated by the lateral force applied on a contact patch of the tire and a longitudinal force-based torque component generated by a longitudinal force applied on the contact patch of the tire.

Abstract: The present invention generally relates to processes for predicting airflow rates. According to some embodiments, some process steps can include developing a three-dimensional computer-aided design model of a test body topology; discretizing the test body topology; discretizing a volume surrounding the test body topology, the volume being bounded by a test chamber; identifying test body components upon which to collect empirical data; obtaining empirical data for identified components; establishing an airflow model; validating the airflow model in comparison to experimental data; obtaining a flow rate from the validated airflow model; and determining whether the mass flow rate is acceptable.

Abstract: A method for optimizing a fuel cell diffusion media having a spatially varying mass transport resistance is provided. The method includes at least two passes where a first-pass D/Deff profile for the fuel cell diffusion media is provided and applied to a computational model of the fuel cell having a baseline variable profile. At least one first-pass variable profile resulting from the application of the first-pass D/Deff profile to the computational mode is calculated and compared to a desired variable range. The first-pass D/Deff profile is refined, if necessary, to provide a second-pass D/Deff profile. A relative performance of the fuel cell with a second-pass variable profile resulting from an application of the second-pass D/Deff profile is determined. The second-pass D/Deff profile is refined, if necessary, until the second-pass variable profile has a desirable performance. An effective D/Deff profile is thereby provided.

Abstract: In a system model production support apparatus and method, plural partial models are stored along with input/output information for each partial model; an input-side portion of the system model is produced by sequentially selecting the partial models constituting the input-side portion from among the stored partial models in an order starting from the partial model closest to an input-side end of the system model, based on input information for the system model, and the input/output information for each partial model, and sequentially connecting the selected partial models; an output-side portion of the system model is produced by sequentially selecting the partial models constituting the output-side portion from among the stored partial models in an order starting from the partial model closest to an output-side end of the system model, based on output information for the system, and the input/output information for each partial model, and sequentially connecting the selected partial models; and the produced

Abstract: A method and system for evaluating and tuning tires includes a test rig on which one or more physical tires are mounted. A full vehicle model and a road description are used with the test rig to test and evaluate the tire as would be conducted on a real test track. The full vehicle model is modified to remove the characteristics of the tire or tires under test. The remainder of the full vehicle model produces output signals in the form of displacements or loads that are transmitted as inputs to the test rig to apply those signals. The test rig measures output signals in the form of complementary displacements or loads that will become inputs to the vehicle model in place of the removed model of the tire under test. In this manner, the physical tire under test is inserted into a real time model of the full vehicle, road and driver.

Abstract: Disclosed is to provide a design method and design system for a vehicular lamp, a program to execute designing of vehicular lamp and a record medium recording the program, which are capable of improving an efficiency of designing a lamp satisfying design conditions including performance conditions required as the vehicular lamp and restriction conditions given to each lamp. A vehicular lamp design system 1 includes: a database unit 2 having a standard database 21 registering standard data of a lamp and a technology database 22 registering technology data; and a lamp preparation unit 3 having a standard data selection part 31 and a morphing control part 32. The standard data selection part 31 generates design data by selecting standard data from the standard database 21 based on given design conditions. The morphing control part 32 updates a necessary part of the design data by use of the technology data of the technology database 22.

Abstract: The invention is a method for real-time estimation of the instantaneous engine speed produced by each cylinder of an internal-combustion engine, from an instantaneous engine speed measurement at the end of the engine transmission system. A physical model, representing in real time the dynamics of the transmission system according to the crankshaft angle and to coefficients of a Fourier series decomposition of the instantaneous speed produced by each cylinder, is constructed. These coefficients are determined in real time from coupling between the model and an adaptive type non-linear estimator. The instantaneous speed produced by each cylinder is then deduced from these coefficients. The mean torque produced by each cylinder can also be deduced therefrom. An application is: engine controls.

Abstract: A method has been invented for predicting the build-up of heat, material aging, and subsequent belt separation failure in rolling steel-belted pneumatic tires (20). The procedure employs finite element analysis and a new fatigue crack propagation model that takes output generated by the finite element model to predict distance and time to belt separation in the tire. The finite element model uses input information on tire load, speed and inflation pressure (12) to calculate the temperature and energy release rate at the corresponding tips of the fatigue crack to generate four-dimensional response surfaces of crack-tip energy release rate as a function of crack length, crack-tip circumferential angular position, and crack-tip temperature. The fatigue crack propagation model samples the response surface and is numerically integrated to predict distance and/or time to belt separation failure (30).

Abstract: A system and method for assembling a mesh model for engineering analysis by a user is provided. The system includes a user computer system, a remotely located computer system and a data storage means. The method includes the steps of selecting a plurality of component parts having a best practice mesh model format and selecting a predetermined property for each of the selected component parts, wherein the predetermined property is selected from a best practice library stored on the data storage means. The method also includes the steps of determining if the mesh model for each of the selected component parts meets a predetermined mesh quality condition using a best practice mesh quality checking software program.

Abstract: A method for modeling a vehicle, includes: receiving an image that includes a vehicle; and constructing a three-dimensional (3D) model of the vehicle, wherein the 3D model is constructed by: (a) taking a predetermined set of base shapes that are extracted from a subset of vehicles; (b) multiplying each of the base shapes by a parameter; (c) adding the resultant of each multiplication to form a vector that represents the vehicle's shape; (d) fitting the vector to the vehicle in the image; and (e) repeating steps (a)-(d) by modifying the parameters until a difference between a fit vector and the vehicle in the image is minimized.

Abstract: The invention relates to a test bench that reproduces the performance of a gearbox. The invention consists of: at least one gearshift module (2) comprising a linear motor (12) and a ball joint (14) that can be used to convert a linear motion of the motor (12) into a rotational motion of a gearshift shaft (5) and a force sensor (17) that can be used to measure the force applied to the gearshift shaft (5). In particular embodiments of the invention, the test bench also comprises a vertical linear selection module or a horizontal selection module. The modules employed can be used to simulate forces as a function of the shift and selection position in a manner that is representative of a gearbox.

Abstract: Methods for optimizing at least one operating parameter of an engine component using an experimentally measured 3D flow field involving providing a magnetic resonance imaging machine, providing a model of an engine component, placing the model into the magnetic resonance imaging machine with a fluid flow source for applying an external fluid flow, applying the external fluid flow to the model, collecting data related to the external fluid flow about the model, and optimizing at least one operating parameter of the component using the data.

Abstract: A method and system for evaluating and tuning damper system includes at least one test rig on which one or more physical damper system are mounted. A full vehicle model and a road description are used with the test rig to test and evaluate or tune the damper system as would be conducted on a real test track. The full vehicle model is modified to remove the characteristics of the damper system under test. The remainder of the full vehicle model produces output signals in the form of displacements or loads that are transmitted as inputs to the test rig to apply those signals. The test rig measures output signals in the form of complementary displacements or loads that will become inputs to the vehicle model in place of the removed model of the damper system under test. In this manner, the physical damper system under test is inserted into a real time model of the full vehicle, road and driver.

Abstract: A method and system for evaluating and tuning axle systems includes at least one test rig on which one or more physical axle systems are mounted. A full vehicle model and a road description are used with the test rig to test and evaluate or tune the axle system as would be conducted on a real test track. The full vehicle model is modified to remove the characteristics of the axle system under test. The remainder of the full vehicle model produces output signals in the form of displacements or loads that are transmitted as inputs to the test rig to apply those signals. The test rig measures output signals in the form of complementary displacements or loads that will become inputs to the vehicle model in place of the removed model of the axle system under test. In this manner, the physical axle system under test is inserted into a real time model of the full vehicle, road and driver.

Abstract: Systems for simulating vehicle operation include a computer having a pedal activation program, the pedal activation program comprising instructions for generating signals relating to operation of a vehicle from the computer to a pedal sensor output according to a predetermined driving profile. Methods for simulating vehicle operation include providing a computer having a pedal activation program, utilizing the pedal activation program to initiate output signals to a pedal sensor output relating to a vehicle condition and transmitting the output signals to an engine control unit to implement a driving profile programmable within the pedal activation program.

Abstract: A computer-implemented method for rapidly designing a vehicle package is disclosed. The method receives virtual vehicle package model data, converts the data into mechanical vehicle package model data and transmits the data to a mechanical vehicle package model system. A method is also disclosed for adjusting the mechanical model, converting the adjustment into data readable by a computer aided design system and transmitting the data to the computer aided design system for generating or modifying the virtual vehicle package. A system for designing a vehicle package is disclosed having a mechanical vehicle package model, a computer aided design system, a translator embodied in a computer system in communication with the computer aided design system and a mechanical vehicle package model in communication with the translator.

Abstract: An improved method for designing the route of a transport element, such as a tube, is provided. The method preferably designs the route automatically and, by utilizing path constraints in the design of the route, as opposed to during a post design check, ensures that the resulting route complies with the various path constraints. In addition, the method of the present invention may establish a selection criterion to evaluate a plurality of feasible routes of the transport element that each comply with the path constraints such that a preferred or optimal route may be designed.

Abstract: A system, method, apparatus and product for designing, on a display device, a geometric shape is disclosed. The method comprises the steps of displaying an initial set of similarly structured model exemplars on a display device, selecting a chosen set of models from the initial set of similarly structured model exemplars to apply to a model mix, mixing the set of models to form a currently displayed shape, providing on the display device at least one selectable feature for manipulating the currently displayed shape, and applying at least one constraint of the selectable feature to the currently displayed shape to update the currently displayed shape into a new geometric shape design.

Abstract: A method of synthesizing an electrical or electronic architecture of at least one part of a product including electrical wires and electrical and electronic components, such as sensors, actuators, and computing devices. In the method: the geometry of the product, which is divided into different zones, is represented two-dimensionally; routing points for the routing of the electrical wires are positioned in the different zones; connection points are positioned between the different zones; electrical and electronic components are positioned in the zones; a routing is synthesized according to the geometry of the different zones and the positions of the routing points, the connection points, and the components; the routing is assessed and, using the result of the assessment, the positions of the routing points, connection points, and/or electrical and electronic components are altered; and the synthesis and assessment are repeated.

Abstract: The present invention relates to systems and methods of integrating driving simulators, data acquisition systems such as, for example, event data recorders, and/or vehicles, as well as to methods of training or providing instruction to drivers using driving simulators, data acquisition systems and/or vehicles.