Abstract: A touchscreen fuel panel. In embodiments, the fuel panel includes a touchscreen display and a controller coupled to the touchscreen display. The controller is configured to generate a graphical user interface at the touchscreen display and receive user inputs via the touchscreen display. In embodiments, the graphical user interface includes a pump menu with at least one selectable icon for a set of engine boost pumps and a plurality of individually selectable icons for forward, center, and aft pumps. The controller is configured to receive a user input representing a user interaction with the graphical user interface (e.g., an icon selection) via the touchscreen display. The controller is further configured to generate one or more control signals for the set of engine boost pumps, at least one forward pump, at least one center pump, or at least one aft pump based on the user input.

Abstract: Apparatus and method for monitoring operational performance of an engine, the apparatus comprising a sensor (10) for detecting torsional strain of a shaft (21) of an engine, and the apparatus further comprising a data processor arranged to process signals received from the strain sensor, and the data processor further arranged to compare one or more operational characteristics of the measured torsional strain data with idealised operational data so as to provide a measure of operational performance indicator of the engine.

Abstract: An ignition apparatus includes an ignition plug, a boost transformer, an ignition power source and a measurement unit. The ignition plug has a center electrode and a ground electrode. The boost transformer supplies the ignition plug with electric power generated in a secondary coil upon supply of AC power from the ignition power source to a primary coil. The measurement unit measures the discharge voltage of the ignition plug. The ignition power source includes a discharge state determining unit that determines the discharge state of the ignition plug based on the measured discharge voltage and a current controlling unit that controls electric current supplied to the primary coil. When a discharge path formed between the center and ground electrodes of the ignition plug is determined by the discharge state determining unit as being in an over-extended state, the current controlling unit reduces the electric current supplied to the primary coil.

Abstract: A resonance estimation system implements resonance detection methods that can obtain accurate estimates of a motion system's resonance and amplitude without the need for a high-resolution encoder or high-frequency sampling. The system solves for resonance information by removing the slow motion dynamics and fast torque control dynamics from the measured speed transfer function in order to obtain resonance transfer function. Smoothing functions are applied to the obtained resonance frequency response data to remove spikes and obtain relatively smooth gain and phase curves for the resonance frequency response. The system then applies a searching algorithm to determine the locations of the phase peaks in the phase curve data, and uses these phase peak locations to locate the gain peaks in the gain curve data, which correspond to the resonance frequencies and amplitudes. This approach allows the gain peaks to be located even when analyzing non-ideal gain curves that are degraded by noise.

Abstract: Methods and systems are provided for detecting cylinder misfire in a vehicle engine via a plurality of sensors, based on dual mass flywheel (DMF) operating frequency. In response to detection of a misfire event, the misfiring cylinders may be deactivated and upon confirmation of DMF operation out of a resonant frequency range, the deactivated cylinder(s) may be sequentially reactivated.

Abstract: Systems and methods for assessing and quantifying the environmental impact on a mechanical component are provided. In one embodiment, a method can include receiving one or more first set(s) of data from one or more first data acquisition system(s) configured to communicate with an onboard system of an aircraft. The method can further include receiving one or more second sets of data from one or more second data acquisition systems that are remote from the aircraft. The method can include determining an aggregate amount of the environmental condition experienced by a mechanical component of the aircraft based at least in part on the first sets of data and the second sets of data. The method can include predicting a level of distress associated with the mechanical component based at least in part on the aggregate amount of the environmental condition experienced by the mechanical component.

Abstract: To enable testing of a starter motor on a test bench with an electrical dynamometer as a replacement for a real combustion engine, a simulation unit (20) is used in which a mathematical model of the combustion engine is implemented, and the simulation unit (20) determines a new load setpoint (ns, Ts) using the mathematical model from measured actual values (?i, ni, Ti) of the operation of the electrical dynamometer (3) at every scanning time point of a regulation, which new load setpoint (ns, Ts) is fed to the regulator (21) of the electrical dynamometer.

Abstract: A method for checking a function of an actuator or a sensor of a system, having the following steps: controlling the actuator within a time window if at least one state variable of the system is in a predefined operating range; detecting a system response, with the aid of the sensor, within the time window as a response to controlling the actuator; determining a malfunction of the actuator or of the sensor if the system response differs from a setpoint system response that is expected due to controlling the actuator. A further actuator of the system is controlled during the time window in such a way that the at least one state variable of the system remains in the predefined operating range during the time window. Moreover, a corresponding method for calibrating a sensor or an actuator of a system is described.

Abstract: A diagnostics method and system for a power plant including at least one low-pressure turbocompressor and at least one high-pressure turbocompressor, the turbocompressors being staged and supplying an internal combustion engine, the power plant being fitted to a motor vehicle. The method includes determining a mode of operation of the power plant, determining a power of the high-pressure turbine based on a first set of data and based on the mode of operation, determining the power of the high-pressure turbine based on a second set of data, determining a failure criterion as being the ratio between the power of the high-pressure turbine dependent on the first set of data and the power of the high-pressure turbine dependent on the second set of data, and comparing the failure criterion against stored values to determine whether there is a failure.

Abstract: Dynamometer testing of a vehicle comprising, with only a first wheel shaft connected to a dynamometer test unit, including the steps of applying a first power to the first wheel shaft, determining a representation of the first power using the dynamometer test unit, determining a second power, different from the first power, being applied to one or both of the first wheel shaft and the second wheel shaft, the second power being a virtual power represented by a virtual representation of second power, and, based on the representation of the first power determined by the dynamometer test unit and the virtual representation of the second power, determining a first speed which is a representation of the speed of the vehicle driven on a road and subjected to the first and second power.

Abstract: A system according to the principles of the present disclosure includes an engine control module, a valve control module, and a level determination module. The engine control module controls an engine mounted in one of an engine dynamometer and a chassis dynamometer based on a predetermined schedule specifying a desired speed with respect to time. The valve control module controls a valve to inject a first quantity of a substance into an exhaust system to simulate the engine outputting an emission. The level determination module determines an emissions level of the emission in the exhaust system based on the predetermined schedule and the first quantity.

Abstract: A system according to the principles of the present disclosure includes an engine control module, a valve control module, and a level determination module. The engine control module controls an engine mounted in one of an engine dynamometer and a chassis dynamometer based on a predetermined schedule specifying a desired speed with respect to time. The valve control module controls a valve to inject a first quantity of a substance into an exhaust system to simulate the engine outputting an emission. The level determination module determines an emissions level of the emission in the exhaust system based on the predetermined schedule and the first quantity.

Abstract: The invention utilizes the firing order of the cylinders within the engine to identify the cylinder or cylinders that mainly contribute or, alternatively, contribute as little as possible to the production of certain harmonic frequencies in the engine's torque. In order to use the engine's torque for this purpose, the calculation of torque must take into account the non-linearities of the engine system. Thus the calculation of torque takes into account not only the properties of the engine but also the properties of the load and the shaft.

Abstract: To determine the gas work WK from the areas formed by the cylinder pressure curve over the associated stroke volume V?, a cylinder-pressure-proportional integrator is started integrating the signals of the cylinder pressure sensor in multiple integrator runs depending on a settable integrator capacitance. A lower and an upper threshold value are predefined, whose difference corresponds to the integrator capacitance. Upon reaching one of the threshold values, respective new integrator runs are started, at the beginning and end of which the current crankshaft angle ? (is detected, respectively. For each integrator run, the associated individual work is determined depending on the product of the integrator capacitance and the particular covered stroke volume and the gas work resulting from the cylinder pressure curve is determined by summation of the individual works. The gas work may be used in particular for determining the internal mean pressure of the cylinder.

Abstract: A method is present for estimating engine load factor. Temperature data is obtained from a temperature sensor in a location with respect to an exhaust system for an engine. A rate of temperature change is estimated using the temperature data. A steady state temperature at a selected time is calculated for the location using the temperature data and the rate of temperature change. The engine load factor at the selected time is estimated from the steady state temperature.

Abstract: There is described a method for monitoring the load condition of a variable speed engine. Said method shows a determination of an actual speed and an actual load moment during operation. A warning signal is emitted when the actual load moment remains outside a monitoring range, predetermined depending on the speed, for the duration of a predetermined delayed reaction time.

Abstract: As one example, a method of operating an engine system including a first air intake passage branch including a first compression device and a second air intake passage branch including a second compression device, wherein each of the first branch and the second branch are fluidly coupled to at least a combustion chamber the engine via a common intake passage, a first sensor arranged along the first branch and at least a second sensor arranged along the common intake passage, wherein the first sensor is a mass airflow sensor and wherein the second branch does not include a mass airflow sensor. The method comprises increasing the mass airflow through the first branch relative to the mass airflow through the second branch when an amount of decrease in the mass airflow through the first branch is more than half an amount of a corresponding decrease in the combined mass airflow.

Abstract: A method is present for estimating engine load factor. Temperature data is obtained from a temperature sensor in a location with respect to an exhaust system for an engine. A rate of temperature change is estimated using the temperature data. A steady state temperature at a selected time is calculated for the location using the temperature data and the rate of temperature change. The engine load factor at the selected time is estimated from the steady state temperature.

Abstract: There is described a method for monitoring the load condition of a variable speed engine. Said method shows a determination of an actual speed and an actual load moment during operation. A warning signal is emitted when the actual load moment remains outside a monitoring range, predetermined depending on the speed, for the duration of a predetermined delayed reaction time.

Abstract: An inspection method is conducted after the assembly of an industrial engine is complete. An identification code assigned to an industrial engine is read. Basic engine specification data and device-specific engine specification data that correspond to the read identification code are extracted from a database to a completion inspection unit. Various inspections are conducted on the individual engine by the completion inspection unit on the basis of the extracted basic engine specification data. The device-specific engine specification data of the engine that has passed the inspection is written into memory. A confirmation inspection is then conducted by a device-specific inspection machine to determine whether the engine has the output characteristics required by the mounting device.

Abstract: The invention utilizes the firing order of the cylinders within the engine to identify the cylinder or cylinders that mainly contribute or, alternatively, contribute as little as possible to the production of certain harmonic frequencies in the engine's torque. In order to use the engine's torque for this purpose, the calculation of torque must take into account the non-linearities of the engine system. Thus the calculation of torque takes into account not only the properties of the engine but also the properties of the load and the shaft.