Abstract: Fluid-flow simulation over a computer-generated aircraft surface is generated using inviscid and viscous simulations. A fluid-flow mesh of fluid cells is obtained. At least one inviscid fluid property for the fluid cells is determined using an inviscid fluid simulation that does not simulate fluid viscous effects. A set of intersecting fluid cells that intersects the aircraft surface are identified. One surface mesh polygon of the surface mesh is identified for each intersecting fluid cell. A boundary-layer prediction point for each identified surface mesh polygon is determined. At least one boundary-layer fluid property for each boundary-layer prediction point is determined using the at least one inviscid fluid property of the corresponding intersecting fluid cell and a boundary-layer simulation that simulates fluid viscous effects. At least one updated fluid property for at least one fluid cell is determined using the at least one boundary-layer fluid property and the inviscid fluid simulation.

Abstract: A method of designing a tire, wherein a tire designer identifies a target residual aligning torque range for a tire design and creates a computer model of the tire, including a buttress angle. Further, the method includes calculating the residual aligning torque of the modeled tire and comparing the calculated residual aligning torque value to the target residual aligning torque to determine whether the calculated residual aligning torque value is within the target residual aligning torque range. The method produces a final tire design having a target residual aligning torque.

Abstract: The present invention models dynamic behavior of flight vehicles for simulation, analysis, and design. The present invention allows a user to define the complexity of a flight vehicle model, and such models may be simple rigid body models, models of medium complexity, or very complex models including high order dynamics comprising hundreds of structural flexibility modes and variables related to aero-elasticity, fuel sloshing, various types of effectors, tail-wags-dog dynamics, complex actuator models, load-torque feedback, wind gusts, and other parameters impacting flight vehicles. The present invention accommodates and analyzes multiple vehicle and actuator concepts and configurations as defined in flight vehicle input data, which specifies flight vehicle parameters at a steady-state condition for modeling flight vehicle response to dynamic forces and flight control commands with respect to steady state operation.

Abstract: A method for integrating the function models of a health management system for a vehicle where the vehicle has multiple systems connected to a communications network and the multiple systems send at least one of status messages and raw data regarding at least some of the operational data of the multiple systems and making a determination of a health function of the vehicle.

Abstract: A method for developing features to be used in an automobile design. The features are developed and documented in an architecture-independent manner, so that they can be used on any vehicle platform where appropriate. The feature development process includes using requirements which have been defined using formal methods, thereby assuring the quality of the requirements. The feature development process also includes the documentation and standardized use of all technical terms and data elements, the development of computer simulation models and hardware-in-the-loop simulations to verify the requirements, and review of a feature and its requirements by peer groups at various stages of the process. The result is a Feature Technical Specification which can be used by any product development team, and which contains only clear, concise and accurate requirements.

Abstract: An aircraft wing cover (10) comprising an integrally stiffened sandwich panel including first and second skins (11, 12) sandwiching a core layer (13), wherein at least one of the skins has a plurality of spanwise extending integral regions of increased thickness (18) accommodated by corresponding regions (19) of decreased thickness in the core. Also, a method of fabricating an aircraft wing cover, and a method of designing an aircraft wing.

Abstract: The invention relates to a method for contactless determining non-uniformities of a loaded wheel, comprising the steps of determining outer contour of at least a portion of the unloaded wheel; simulating loading of the wheel with a virtual loading element bearing against the tyre tread for a plurality of rotary positions of the wheel on the basis of the determined outer contour, a displacement of the determined outer contour caused by the virtual loading element and a predetermined spring rate associated to the tyre tread; and determining non-uniformities of the loaded wheel using the simulation results.

Abstract: Systems and methods for predicting a dynamic wrinkle property are provided. In one embodiment, a method of predicting a dynamic wrinkle property of a material for incorporation with an upholstered article includes selecting a plurality of material property categories and determining a material property for each selected material property category of a material. A dynamic wrinkle factor is assigned for each material property category based at least in part on the material property associated with the material property category. A dynamic wrinkle weight value is applied to each dynamic wrinkle factor to generate a weighted dynamic wrinkle factor for each material property category. The method further includes determining a predicted dynamic wrinkle score based at least in part on the weighted dynamic wrinkle factors and altering one or more material properties of the material if the predicted dynamic wrinkle score is below a benchmark value.

Abstract: A vehicle monitoring device (VMD) in accordance with the invention comprises a microprocessor programmed to simulate a vehicle's powertrain, that is arranged to receive signals from a vehicle's engine management system in order to produce a real-time simulated model of the vehicle's powertrain operation whence the vehicle's actual instantaneous fuel consumption and/or emissions can be accurately predicted during operation of the vehicle and compared with predetermined or calculated optimum performance characteristics for the powertrain under the pertaining conditions in order to display the instantaneous operating conditions in relation to the optimum under any driving condition. The VMD is advantageously arranged to receive the signals from the on-board diagnostics (OBD or OBD-II or equivalent) port.

Abstract: Methods and apparatus for controlling deployment of systems according to various aspects of the present invention operate in conjunction with at least one deployable asset, a scoring system, and an optimization system. The scoring and optimization systems provide an optimized solution to mission planning, asset positioning, and control of multiple entities within a geographic region. The system combines a scoring method with an optimization method to quickly select a globally optimal solution from a larger set of potential solutions.

Abstract: A system and method implemented on a computing device are provided to simulate trajectories of objects dispensed from a moving aircraft.

Abstract: A system includes an encoding module and a decoding module. The encoding module generates a three-dimensional (3D) model of a part, modifies the 3D model to include a 3D structure, and generates a computer-aided design (CAD) file based on the modified 3D model. The decoding module determines whether the CAD file includes the 3D structure, authorizes operation of analysis software on the CAD file when the CAD file includes the 3D structure, and prohibits operation of the analysis software when the CAD file does not include the 3D structure.

Abstract: A model and computer based diagnostic method and system for automating a simulation process for a component, sub-system, and system of a vehicle engine relating particularly to coolant filling and draining. The method including the steps of creating a physical prototype and transparency of fluid passageways within the engine including the following elements: a radiator, a reservoir, a water jacket, a heater core, a heat exchanger, and other coolant system components thereby forming a complete cooling system within a vehicle engine. Geometry is then imported from the physical prototype to the computer automated design system including physics statistics and thermodynamics of each element. The method lastly includes the step of simulating fluid flow through the coolant system.

Abstract: The portable simulation system is a computer-based driving simulator, which uses an actual vehicle as an input device, and a portable display to present a Virtual Driving Environment (VDE) to the driver. Vehicle's steered wheels are placed atop of the turntables permitting free operation of the steering wheel. The vehicle remains immobile while its engine and power steering can be turned off during the simulation. External non-invasive sensors can be placed under the gas and brake pedals, permitting any vehicle to be used in the simulator, including the driver's own vehicle. A digital interface to the vehicle's systems, like OBD II, can be used to increase the fidelity of the simulation. A portable computer used for driving simulation and VDE presentation provides a low cost simulation option. A simple configuration of the portable simulator does not require an external power source and can be set-up and operated at any parking space.

Abstract: A computer-implemented method for rapidly forming a vehicle body model includes identifying a vehicle design using a computer. Sectioning data is determined by sectioning the vehicle design into multiple virtual sections using a design program implemented on the computer. The sectioning data is used by a machine to form multiple modeling sections that correspond to the multiple virtual sections. The multiple modeling sections are nested together to form the vehicle body model. The multiple modeling sections are fixed together once the vehicle body model is formed.

Abstract: A plurality of simulators operable to decentrally execute arithmetic operations based on a plurality of simulation models which are respectively assigned to the simulators under the control of a management device. A notifying section is operable to provide a notification so as to relate information regarding one of the simulation models displayed on a display of the management device to one of the simulators which executes an arithmetic operation based on the one of the simulation models. The management device and the simulators are connected with each other via a network.

Abstract: A moving object risk calculation unit calculates the total value at all points of intersection of a mesh M for the risk due to moving objects at each point of intersection on the basis of the risk due to objects at each point of intersection in the plurality of meshes set in the vicinity of a host vehicle. In this manner, it is possible to acquire the risk due to moving objects, such as another vehicle that is traveling or is stationary or a pedestrian who is walking or is stationary. In addition, a moving object risk calculation unit calculates the total value of the risk due to moving objects at all points of intersection of the mesh by subtracting the total value of the risk due to immovable objects, which is fixed at each point of intersection, at all points of intersection of the mesh from the total value of the risk due to objects.

Abstract: A method and system for modeling an inflatable supplemental restraint device for a vehicle includes operating a simulation system according to a first step in which the restraint device is modeled in a fully inflated configuration using a finite element model. The modeled airbag is then deflated and flattened. The flattened airbag is subjected to simulated folding using a finite element model. Inputs drawn from the results of successive portions of the simulation are used in the later modeling steps.

Abstract: An accumulated use time measuring method for cargo handling vehicles and a cargo handling vehicle both enable accurate continuation of the use time till a display unit containing a time measuring device is replaced even if the time measuring device fails and prevention of false alteration after shipping while infallibly resetting the time measuring device to zero when the time measure device is shipped from the factory. The function units such as a display unit and a control unit of the cargo handling vehicle each include a time measuring device and a storage device. A synchronization mode in which the difference between the accumulated use times of both devices is made the same and a synchronization inhibition mode in which the accumulated use times are not changed and the time measurement is continued are provided.

Abstract: Method for determination of a rigid value of an aerodynamic coefficient of an aircraft, in which measurements are made in a wind tunnel on a model of the said aircraft and, on the basis of these measurements, at least one value, known as flexible model value, of this aerodynamic coefficient is determined, characterized in that a rigid value of the aerodynamic coefficient is calculated on the basis of the said flexible model value(s) and a correction taking into account the flexibility of the model. A plurality of flexible model values is determined on the basis of measurements made by varying the parameter q/E and maintaining the angle of incidence at a constant value, and the correction consists in an extrapolation operation providing a value of the aerodynamic coefficient corresponding to q/E=0. As a variant, a single flexible model is determined and the correction consists in adjusting the said value with the aid of a correction factor.

Abstract: A method for selecting, from a set of possible configurations, an optimized tire configuration for fitting a vehicle intended to run on a circuit following a predefined route, oriented in a single course direction and including bends. The method includes the steps of developing a physical model of the vehicle fitted with a first tire configuration, simulating the route course by the modeled vehicle, optimizing the speed of the vehicle, storing in memory the course time taken by the vehicle to cover the route at least once, comparing the course time to at least one reference time and producing a comparison result, and optionally selecting the first configuration at the optimized configuration as a function of the comparison result.

Abstract: Systems and methods for generating transfer functions associated with calculating local stresses on pipe elements by post processing forces and moments of a pipe model representing the piping system. The transfer functions are reusable and allow recalculation with different sets of user data without requiring regeneration of the transfer functions.

Abstract: The present invention is an apparatus and method for optimizing fuel consumption. A physical dynamics model may be used to simulate a vehicle being driven by a driver along a virtual route, possibly under specified weather conditions. A score for the vehicle may be calculated from estimations, based on the simulation, of fuel efficiency, vehicle drivability, and/or time for completing the route. Simulated (“virtual”) vehicles may be configured from components through a user interface. Scores for the vehicles may be compared to select an optimum vehicle.

Abstract: The present invention models dynamic behavior of flight vehicles for simulation, analysis, and design. The present invention allows a user to define the complexity of a flight vehicle model, and such models may be simple rigid body models, models of medium complexity, or very complex models including high order dynamics comprising hundreds of structural flexibility modes and variables related to aero-elasticity, fuel sloshing, various types of effectors, tail-wags-dog dynamics, complex actuator models, load-torque feedback, wind gusts, and other parameters impacting flight vehicles. The present invention accommodates and analyzes multiple vehicle and actuator concepts and configurations as defined in flight vehicle input data, which specifies flight vehicle parameters at a steady-state condition for modeling flight vehicle response to dynamic forces and flight control commands with respect to steady state operation.

Abstract: A friction coefficient between at least one tire of a motor vehicle and a roadway is estimated recursively. A kingpin inclination angle is detected or measured. A model determines a lateral friction value by defining a functional correlation between that value and the angle such that a non-linear course of that value relative to the angle is dependant on an initial increase of that value relative to the angle and on a recursively determined estimated value of the friction coefficient. The initial increase is defined substantially independently from the recursively determined estimated value. In addition, a measurement variable of the driving dynamics is captured. Depending on the lateral friction value, the driving dynamics model variable is determined. Furthermore, a variance between the driving dynamics measurement variable and the driving dynamics model value is determined. The recursion when acquiring the estimated value includes that the estimated value is adjusted.

Abstract: A method and device for creating an accurate simulation or model of the performance of a vehicle or an internal combustion engine in accordance with the invention comprises accessing the engine on-board diagnostic port (OBD), reading data from the desired industry standard parameter indicators (PID), using these data to produce a basic simulation of the engine operating characteristics, accessing and reading non-industry standard PIDs and using the output from the basic simulation in order to identify the non-industry standard PIDs with a high degree of certainty.

Abstract: A system generates a state diagram model in a graphical modeling system, where the state diagram model includes at least one state. A condition statement is associated with the at least one state, and defines a condition upon which one or more actions associated with the at least one state are executed.

Abstract: A system and method for dynamically checking clearance within a geometric mesh model includes a user computer system having a remotely located computer system, and a data storage device. The method periodically updates a digital model of assembled component parts stored on the data storage device, interactively selects a predetermined clearance rule applicable to the digital model and interactively selects a predetermined clearance condition applicable to the selected clearance rule for the digital model that modifies the predetermined clearance rule. The method periodically calculates clearance within the assembled digital model using the selected clearance rule and the selected clearance condition and summarizing the clearance check. The clearance check summary identifies a clearance issue using a predetermined clearance checking criteria and submits the identified clearance issue to an issue manager software program for tracking clearance issues.

Abstract: A server communicates with one or more work machines and automated guided vehicles (AGVs) via a wireless network. When receiving a request signal for desired material, the server analyzes the request signal to determine a location of the work machine, and searches for an AGV according to basic information of a production scene stored a storage device. The server further generates a control command according to the location of the work machine, a starting location of the searched AGV, and arrangement information of AGV tracks obtained from the basic information, and controls the searched AGV to move to the location of the work machine according to the control command, to delivered the desired material carried by the searched AGV to the work machine.

Abstract: According to one representative embodiment, an apparatus for controlling reductant dosing in an SCR catalyst system having a reductant injection system configured to inject reductant into an exhaust gas stream includes a controller, an actual reductant dosing rate module, and a reductant doser compensation module. The controller is configured to determine a reductant dosing rate command representing a desired reductant dosing rate. The actual reductant dosing rate module is configured to determine a predicted actual reductant dosing rate based at least partially on the reductant dosing rate command. The reductant doser compensation module is configured to determine a modified reductant dosing rate command based at least partially on the predicted actual reductant dosing rate. The reductant injection system injects reductant into the exhaust gas stream at a rate corresponding to the modified reductant dosing rate command.

Abstract: A method implements hybrid type simulation serving to validate an inertial unit of a moving body on board an angular movement simulator by comparing a trajectory of the moving body as calculated in a real navigation environment with at least one reference trajectory.

Abstract: A vehicle test system includes an occupant positioning module that receives a virtual vehicle and a virtual dummy. The occupant positioning module generates a first set of parameters based on the virtual vehicle, the virtual dummy and a first adapted vehicle standard. N groups receive the first set of parameters. N is an integer greater than 1.

Abstract: A road shape recognition device includes: distance and height detecting means for detecting distance data having a distance and height in real space regarding a road surface where a vehicle is traveling at multiple mutually different points; approximation line calculating means for dividing the plurality of distance data into near and far groups as viewed from the vehicle to calculate an approximation line of the distance data for each group each time the distance data of the boundary portion between the two groups is transferred from one of the groups to the other; statistics calculating means for calculating statistics from the corresponding approximation line for each group where the distance data is transferred; and road shape model generating means for selecting one out of combinations of the approximation lines to generate a road shape model using the selected combination.

Abstract: Systems and methods for arithmetic modeling of large scale engineer-to-order production systems using asynchronous stochastic learning curve are disclosed. In one embodiment, a method for simulating a production system configured to produce a product includes, for a plurality of components, assigning learning curve parameters for an asynchronous stochastic learning curve associated with each component. Master schedule data for manufacturing a plurality of the product are received, and production of the plurality of components a plurality of cycles corresponding to the plurality of the product is simulated. The results of the simulated productions are output for analysis. In a further aspect, the product is an aircraft, and the components are aircraft components.

Abstract: A method for simulating a movement zone of a robot having at least one data processing installation, simulating at least one movement path of the robot, comprises providing a number of selectable points on the at least one movement path of the robot, calculating a braking path for each of the selectable points, calculating a virtual movement zone based on the braking paths and a maximum position reachable by the robot for the respective at least one movement path, and carrying out the simulation of functions of the robot off-line using a software module.

Abstract: Methods are provided for creating dynamic lists from selected areas of a power system of a utility company. The utility company has an energy management system with a control panel. The energy management system is used to access one or more source displays of a site. Rubber-banding or lassoing is used to create selected areas from at least a portion of the source displays. Lists are dynamically created. Operator defined information is displayed for each element type in a list of network elements from the selected areas that have been rubber-banded or lassoed.

Abstract: A method for setting function parameters of a control unit for a motor vehicle, in which at least one target variable is predefined in a weighting characteristics map, the target variables representing a behavior of the motor vehicle, and an assignment to a model of optimum parameters being provided in the weighting characteristics map so that predefined target variables are assigned to a set of optimum parameters which are set as the function parameters.

Abstract: A wave form tile in the form of a natural wave, is provided to replace traditionally smooth surfaces to aid in more efficient shedding of a fluid medium. The wave form tile is also applied to proportionally spherical fractal surfaces defined for the surface of a vehicle.

Abstract: A method of routing the physical links of a avionics platform inside an aircraft. A physical link connects a plurality (N) of equipment units and is composed of one or more branches, where each branch of the link connects a sender equipment unit to a receiver equipment unit. The method makes it possible to minimize the total cabling length of the platform and, where applicable, to choose among various positions of the equipment units inside the aircraft and/or various routing graphs.

Abstract: Provided is a method of designing a coaxial dual-tube type hot gas duct for a very-high-temperature reactor. When determining the outer diameter of an inner tube and the inner diameter of a pressure tube, both of which defines an annular part of the hot gas duct having a dual-tube shape, one selected from hydraulic heads, flow rates, and hydraulic heads of very-high-temperature helium gas flowing to a very-high-temperature region and low-temperature helium gas flowing to a low-temperature region is taken into consideration as well as is a relation of about heat balance model, so that it is possible to minimize flow induced vibrations caused by the flow of a fluid.

Abstract: A method for modeling the performance of a gas turbine engine is provided.

Abstract: An acoustic characteristics optimization model analysis apparatus includes a finite element model generation unit; a boundary element model generation unit; an acoustic transfer function calculation unit; a nodal point association unit; and a sound pressure calculation unit that incorporates the plurality of nodal points of the finite element model correlated with the plurality of nodal points of the boundary element model by the nodal point association unit into the acoustic transfer function calculated by the acoustic transfer function calculation unit to calculate a sound pressure transmitted from the finite element model to the predetermined position.

Abstract: Certain exemplary embodiments can comprise obtaining and analyzing data from at least one discrete machine, automatically determining relationships related to the data, taking corrective action to improve machine operation and/or maintenance, automatically and heuristically predicting a failure associated with the machine and/or recommending preventative maintenance in advance of the failure, and/or automating and analyzing mining shovels, etc.

Abstract: A system includes a host application configured to receive a component model representing a vehicle component. The component model includes a body having a concave portion and/or a convex portion that defines a fluid retainer. A detection tool in communication with the host application is configured to determine a size and location of the fluid retainer. The detection tool is further configured to associate the size of the fluid retainer to a design rule and calculate a value representing a minimum hole size that will allow fluid to flow into or out of the fluid retainer in accordance with the design rule.

Abstract: A simulation system is provided. A simulator is configured to execute simulation of a simulation object at a processing speed. A user interface module is configured to generate at least one of a first operation screen for inputting simulation conditions on the simulation executed by the simulator and an output screen for representing a result of the simulation executed by the simulator, and to display the at least one of the first operation screen and the output screen on a display unit. An adjustor is configured to adjust an updating speed of the at least one of the first operation screen and the output screen which are displayed on the display unit by the user interface module to be different from the processing speed.

Abstract: A forming speed determination method for determining a forming speed of a press-processing device with a plurality of measurement points on a sheet material to conduct press-forming of the sheet material with a press-processing device at a predetermined forming speed. Strain states at respective points on the press-formed sheet material are plotted on a forming limit diagram including the forming limit curve of a sheet material to produce a strain distribution chart. Subsequently, the closest point to the forming limit curve among the points is defined as a specific measurement point. When this specific measurement point is located in the bulge region, the forming speed of a press-processing device is decreased to be slower than the above-mentioned predetermined forming speed. Meanwhile, when this specific measurement point is located in the draw region, the forming speed of a press-processing device is increased to be faster than the above-mentioned predetermined forming speed.

Abstract: A mobile aircraft emulation system comprising communications hardware and data processing hardware. The communications hardware is configured for use in an aircraft and to establish a communications link with an airport network data processing system. The data processing hardware is configured for use in the aircraft to run a number of software aircraft parts and exchange information with the airport network data processing system using the communications link. The number of software aircraft parts is configured for use in the aircraft.

Abstract: In one embodiment, the present invention includes a computer-implemented method to collect information to determine damage to a vehicle involved in a collision using photogrammetric techniques. When determined, this vehicle damage information, which may be in the form of crush measurement information such as a crush damage profile, can be displayed in a computer-generated view of the subject vehicle with a crush damage profile and used to estimate the impact severity. In some embodiments, based on the photogrammetric information derived, a direction of any shifting of the vehicle's components may be obtained and used along with other information to estimate a principal direction of force (PDOF) for one or more vehicles involved in the collision. Still further embodiments may be used to generate and/or audit repair estimates based at least in part on the photogrammetric information.

Abstract: A DPF accumulation amount estimating apparatus uses an integrated PM accumulation amount estimation logic which combines the difference between an engine PM emission amount and a PM regeneration amount and a DPF differential pressure model, thereby achieving minimized influences of changes in an exhaust gas flow rate and the like with resultant improved estimation accuracy.

Abstract: Disclosed is a simulation test system and method for testing a vehicle electronic component capable of easily testing performance of the electronic component anytime regardless of location without repeating the same driving test.