Abstract: The timing of a controlled event is advanced or retarded in an IC engine by emulating the engine speed and position signal pattern prior to transmission of that signal pattern to an output such as a fuel injector. In a multi-controller engine in which a second controller is controlled at least in part by signals delivered by first controller, the signal preferably is emulated in the first controller prior to transmission to the second engine controller in order to allow the shifting of a timing of a controlled event without direct data transfer from the second controller to the first controller. The technique is particularly well-suited for controlling diesel fuel injection in a dual fuel or other multi-fuel engine. In this case, the first controller must be a dual fuel controller and the second controller may be a diesel controller.

Abstract: A system for detecting memory corruption in an engine control module includes a variable selection module, an output module, an input module, and a response comparing module. The variable selection module selects a variable of a control system for testing. The output module outputs a predetermined value of said variable to a memory location where said variable is stored in said engine control module. The input module receives a response of said control system to said predetermined value when said predetermined value is written in said memory location. The response comparing module compares said response to a predetermined range and determines that said memory location is defective when said response is not within said predetermined range.

Abstract: A fault detection and diagnosis method for a gas turbine engines comprises collecting a sensor signal from an acoustic or vibrational sensor at the gas turbine engine, pre-processing the sensor signal to remove predictable background, and extracting a feature set from the sensor signal using Mel-Frequency Cepstral Coefficients (MFCC) algorithms and/or Code Excited Linear Prediction (CELP) algorithms. Fault and non-fault states are reported based on comparison between the feature set and a library of fault and non-fault feature profiles corresponding to fault and non-fault states of the gas turbine engine.

Abstract: In a method for reading and/or storing injector-specific data for controlling an injection system of an internal combustion engine, an injector is charged by a control unit according to a predeterminable voltage curve and, depending on the case, is discharged directly by the control unit or by a power element located on a data storage medium and the voltage is measured by the control unit and by the data storage medium. Dependent upon a predeterminable voltage curve, a predeterminable amount of data is stored or read on a memory unit of the data storage medium.

Abstract: A method for acquiring operating data of an internal combustion engine in a control unit during a diagnostic function of the control unit, and for transmitting the operating data from the control unit to a diagnostics device, the operating data being determined in the control unit with the aid of sensors assigned to the internal combustion engine. Desired operating data type and time resolution of the value reception is transmitted from the diagnostic device. Operating data are collected in the control unit with the aid of a diagnostic function. The diagnostics device and the control unit are connected via standardized interfaces, whose transmission speed is limited. Data values are buffered in a memory in the control unit. Speed of data acquisition may be selected independently of the transmission speed of the interface between the control unit and the diagnostics device. Data acquisition synchronous with the rotational speed is possible.

Abstract: A rewriting system comprises a plurality of electronic control units mounted on a vehicle, each of the plurality of electronic control units including a storage for storing control information, and a device for sending new control information to rewrite the control information stored in the storages of the plurality of electronic control units with the new control information. One of the plurality of electronic control units is configured to make a determination whether the rewriting in the other electronic control units has been completed in response to a completion of the rewriting in the one of the plurality of electronic control units, and make a notification of a result of the determination. Thus, the progress of the rewriting for a plurality of control units is automatically determined and notified to a user. The user can immediately recognize the progress of the rewriting work.

Abstract: In an internal combustion engine controller, a clock trouble determination signal from a clock trouble determining circuit that diagnoses any clock input trouble is transmitted in parallel with an abnormality diagnosis signal outputted from an abnormality diagnosing circuit and causes it to be inputted to a trouble/abnormality signal output circuit, and the trouble/abnormality signal output circuit achieves logical summing to output one line of resultant trouble/abnormality output OR signals to a microprocessor (MP). The MP outputs to the trouble/abnormality signal output circuit a trouble/abnormality confirmation input signal, and makes definite any of an abnormal state, a clock trouble state and a normal state based on the result of switching control of the status level of the pertinent trouble/abnormality output OR signal.

Abstract: Described is a method for operating an internal combustion engine (1), in which method at least one parameter of the exhaust gas flowing in an exhaust-gas duct (10) is detected by at least one exhaust-gas probe (30; 32), wherein the internal combustion engine (1) is at least temporarily turned over by a starting device (3), during which an injection and combustion of fuel does not take place, and during and/or after which the exhaust-gas probe (30; 32) is adjusted.

Abstract: Disclosed herein are techniques for implementing vehicle ECU reprograming, so the ECU programming, which plays a large role in vehicle performance characteristics, is tailored to current operational requirements, which may be different than the operational characteristics selected by the manufacturer when initially programming the vehicle ECU (or ECUs) with specific instruction sets, such as fuel maps. In one embodiment, a controller monitors the current operational characteristics of the vehicle, determines the current ECU programming, and determines if a different programming set would better suited to the current operating conditions. In the event that the current programming set should be replaced, the controller implements the ECU reprogramming. In a related embodiment, users are enabled to specify the ECU programming to change, such as changing speed limiter settings.

Abstract: A reversible, manipulation-proof method encodes an engine controller for a motor vehicle, which is designed for use in motor vehicles with different operating characteristics. At least one first operating characteristic is defined in invariant form for the motor vehicle, with which method during commissioning of the engine controller the first operating characteristic is stored in the engine controller during and/or after an authentication process in such a way that it can only be changed during and/or after a further authentication process.

Abstract: A fuel injection device includes a fuel injection valve for injecting fuel, which is distributed from a pressure-accumulation vessel. A pressure sensor is located in a fuel passage, which extends from the pressure-accumulation vessel to a nozzle hole. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel. A storage unit stores individual difference information obtained by an examination. The individual difference information indicates an injection characteristic of the fuel injection valve and indicates at least one of an injection response time delay between an injection start point and a time point, at which a fluctuation is caused by the start of fuel injection in detected pressure of the pressure sensor, and a parameter for calculating the injection response time delay.

Abstract: With the use of a model expression (FIG. 9C), of which inputs include a desired value of an in-cylinder air amount that is a controlled object of a system and predetermined parameters, such as engine speed (ne), a desired throttle opening degree (?ref) required to control the in-cylinder air amount to the desired value is calculated. In this model expression, parameters, such as the engine speed (ne), that oscillate at a relatively high frequency are excluded from subjects of differentiation, and the desired in-cylinder air amount value only is included in the subjects of differentiation.

Abstract: An anti-theft code lock control system including an engine state determination unit, an off time determination unit, a code input unit, a code matching determination unit, and an engine control unit, and a method thereof are provided, which can solve problems of a system in the prior art that determines an equipment off state only by a key signal and thus does not operate a code lock system in the case where a key is in an on state but an engine is in the same state as an engine off state.

Abstract: An engine control system includes a unit which outputs a command for changing an air-fuel ratio of an exhaust gas, a unit which computes an in-cylinder oxygen concentration, a memory which stores a first value and a second value of parameters (ignition timing, injection pressure, pilot injection quantity). The first value is set in a case that the in-cylinder oxygen concentration is a first oxygen concentration. The second value is set in a case that the in-cylinder oxygen concentration is a second oxygen concentration which is higher than the first oxygen concentration. The values of the parameters are set in such a manner as to correlate to the in-cylinder oxygen concentration of during a transition period of the air-fuel ratio. The values of the parameters are obtained by an interpolation based on the first and the second value of the parameter and the in-cylinder oxygen concentration.

Abstract: A fuel injection amount control apparatus for an internal combustion engine includes an ECU that commands a learning-purpose injection when a first learning condition regarding operation state and a second learning condition regarding load connection state are satisfied, and calculates an injection performance value that corresponds to the actual injection amount based on the amount of change in rotation speed, and further determines whether a delay of the learning process is permitted based on whether the learning process, despite occurrence of the delay, can be completed before the injector performance reaches a permissible limit value, and forces, when the delay is not permitted, the load connection state to be a specific connection state so as to satisfy the second learning condition. When it is determined that the delay of the learning process is permitted, the delay is permitted until the two learning conditions are satisfied.

Abstract: A method and a control system that includes a window module that determines a piston position window, a mean effective pressure determination module that generates a mean effective pressure with in-cylinder pressure signals within the piston position window and an engine control module that controls the engine using the mean effective pressure.

Abstract: A method for transferring existing data from a source motor to a target motor includes retrieving the existing data from the source motor, optionally converting the existing data into a new format, and at least one of storing, erasing, writing, overwriting, or replacing software and/or data on the target motor such that the existing data is stored on the target motor in a format compatible with the target motor.

Abstract: A method and cruise control system for controlling a vehicle cruise control includes driving the vehicle with the cruise control active and set to maintain a vehicle set target speed, and registering a current vehicle condition, which includes at least a current vehicle position, a currently engaged gear ratio, available gear ratios, current vehicle speed, available maximum propulsion torque and road topography of coming travelling road comprising a next coming uphill slope. Based on the current vehicle condition a downshift is predicted at a coming vehicle position in the coming uphill slope due to vehicle speed decrease and at least one activity is selected which results in that the downshift can be postponed or avoided. The cruise control is controlled according to the selected activity in order to postpone or avoid, for example a downshift from a direct gear and thereby saves fuel.

Abstract: The invention relates to a method for estimating the temperature of a gas pressure sensor attached to a wall of a turbocharged motor vehicle diesel engine, said sensor being positioned upstream of the turbine of the turbocharger. According to the invention, the temperature of the gas pressure sensor is estimated at least by measuring the temperature of the external air and the temperature of the wall to which the sensor is attached.

Abstract: Apparatus for reprogramming a programmed controller of a power driven wheelchair comprises: a reprogrammable, non-volatile memory programmed with a plurality of programs executable by the controller to operate the wheelchair, the non-volatile memory disposed at the wheelchair and coupled to the wheelchair controller; a general-purpose computer programmed to reprogram the non-volatile memory while disposed at the wheelchair, the programmed computer for storing main programs for use in reprogramming the non-volatile memory, the programmed computer being coupleable to the wheelchair controller for accommodating an exchange of data therebetween; and wherein the wheelchair controller being operative to communicate with the programmed computer to reprogram the non-volatile memory with the main programs while the non-volatile memory is disposed at the wheelchair. Methods for reprogramming the non-volatile memory are also disclosed.

Abstract: A control device used for an internal combustion engine and capable of determining an actuator operation amount is provided. The control device includes a computation element that uses engine status amounts to compute the actuator operation amount. The computation element uses a model that includes a plurality of submodels arranged in a hierarchical sequence. The computation element computes the actuator operation amount by using a parameter calculated by the lowest level submodel and changes the number of higher-level submodels to be used in combination with the lowest level submodel in accordance with the operation status of the internal combustion engine.

Abstract: The present application provides a system and method for determining a secondary fuel amount for an engine. The method comprises measuring an injector signal from an engine's Engine Control Unit (ECU) for a primary injector. A delay time of the primary injector can be determined using a lookup table. An open time can be calculated based on the delay time and the primary timing value. An amount of fuel to be injected into the engine can be calculated based on the primary injector open time. An amount of secondary fuel equivalent to the amount of primary fuel can be determined. A timing value for a secondary injector signal for the secondary injector can be calculated to deliver the amount of secondary fuel to the engine.

Abstract: A device for controlling the exhaust-gas turbocharging of an internal combustion engine having an exhaust-gas turbocharging device, has an estimated value unit for determining a mass flow through a turbine system, a regulating unit for determining a regulating exhaust-gas back pressure as a function of a nominal charge pressure and an actual charge pressure, and also a unit for generating at least one actuating signal for at least one actuator of the turbine system as a function of the regulating exhaust-gas back pressure and of the mass flow through the turbine system, wherein the estimated value unit has a turbine system model for determining an estimated overall efficiency of the turbine system and a model for determining an estimated overall efficiency of a compressor system having at least two compressors, and wherein the regulating unit is set up to determine the regulating exhaust-gas back pressure using the estimated overall efficiencies

Abstract: A method for adapting a kinetic model of a SCR is described. In one example, the kinetic model is adapted for stored ammonia, ammonia release rate, and ammonia storage capacity. The method may be useful for adjusting engine control parameters for the purpose of reducing engine emissions.

Abstract: A system and a method for controlling NOx may include predicting NOx generation amount by using a virtual sensor; comparing the NOx prediction amount with a predetermined NOx target amount; and controlling the NOx generation amount so as for the NOx prediction amount to follow the NOx target amount.

Abstract: Disclosed is a vehicle control apparatus which can prevent drivability from being deteriorated. An ECU is operative to set a reduction speed threshold value to determine a driver's braking intention on the basis of the correlation in the depression amount of an accelerator pedal, the depression amount of a brake pedal, and a travel state of a vehicle caused by the depression amounts of the accelerator pedal and the brake pedal. The ECU is further operative to change the reduction speed threshold value on the basis of the detected drive state to compare the travel state calculated on the basis of the detected drive state with the changed reduction speed threshold value to determine the driver's braking intention, thereby making it possible to determine the driver's braking intention without detecting the operation amount of a driver and to accurately estimate the driver's braking intention. This makes it possible to change the reduction control between executed and not executed, and to improve the drivability.

Abstract: A method (10) for injecting ammonia (NH3) into exhaust gas upstream of a catalyst of an aftertreatment system includes the steps of determining whether a regeneration event is imminent (14) on the basis of predetermined parameters, and determining whether dosing parameters are met (22). The method (10) further includes the steps of calculating an amount of NH3 to fill the catalyst (18) and adjusting a quantity of NH3 dosed (22) before the regeneration event occurs.

Abstract: An onboard system for determining vehicle emissions. The emissions are determined in real-time and may be transmitted to a remote terminal for storage and/or analysis. Data is supplied solely to an emissions unit from a vehicle diagnostic system; the vehicle diagnostic system receives vehicle data from vehicle systems and sub-systems.

Abstract: When performing a learning control of a fuel injection quantity, a fuel injection control apparatus adds a pilot fuel injection during the working state of a diesel engine when a learning data item (as a fuel injection amount correction value) is calculated per cylinder and fuel pressure. The apparatus compares, based on a combustion stroke of a target cylinder, a work load obtained during an ordinary fuel injection with a work load obtained during the pilot fuel injection. The apparatus calculates a learning data item for the target cylinder in order to correct an actual fuel injection quantity in the target cylinder with the learning data item so that the actual fuel injection quantity approaches a target fuel injection quantity.

Abstract: Procedure for regenerating an exhaust gas after treatment system, especially a particle filter, of a combustion engine that is arranged in a motor vehicle, with regeneration cycles that are controlled by a control unit, whereby the control unit is provided with information data regarding the route and whereby the regeneration cycles are controlled with regard to the information data, is thereby characterized, in that the information data that regards the route contains driver specific information data.

Abstract: An apparatus includes a parallel computation unit including an input port and an output port and a one-dimensional computational fluid dynamics model. The input port is configured to sample at a time t1 a boundary condition signal for the one-dimensional computational fluid dynamics model and the output port is configured to provide an output signal before the boundary condition signal is sampled at a time t2.

Abstract: Provided is a vehicle control apparatus which can prevent drivability from being deteriorated. The vehicle control apparatus comprises an ECU adapted to determine whether or not a brake is “off” or the state of the hysteresis width of an accelerator opening degree exceeding a predetermined hysteresis width is continued for a predetermined period of time during the execution of an engine torque reduction control process. When the ECU determines that the brake is “off” or that the state of the hysteresis width of an accelerator opening degree exceeding a predetermined hysteresis width is continued for a predetermined period of time, the ECU performs an engine torque restoration process of the engine. Therefore, the vehicle control apparatus can allow the continued execution and non-execution of the reduction control to be switched therebetween in accordance with the driver's travel intention, thereby making it possible to prevent the drivability from being deteriorated.

Abstract: Mixed cycle compression ignition engines and methods of operating a camless compression ignition engine by establishing a number of operating cycles for operating the engine, each for a particular engine load range and storing a respective algorithm and engine operating parameters for each operating cycle in a lookup table, receiving engine operating information, including piston position when compression ignition occurs, receiving a power setting for the engine, selecting from the lookup table, an algorithm and operating parameters for an operating cycle for the engine applicable to that power setting, operating the engine using the selected algorithm and operating parameters, and adjusting the engine operating parameters based on received engine operating information. Various operating cycles are disclosed.

Abstract: The present invention relates to system and methods for improving efficiency of an internal combustion engine. This system may include a fuel processor. The system receives instructions for a desired engine output and operating conditions. The system may then determine an operational state corresponding to the desired output. The operational state includes designating the cylinders into one of three categories: working, deactivated and passive. The number of working cylinders is calculated by dividing the desired output by the power provided by one cylinder operating at substantially optimal efficiency. Then the system substantially disables fuel flow to and air flow to the deactivated cylinders, substantially disables fuel flow to and firing of the passive cylinders, and substantially regulates fuel flow to, air flow to and firing of the working cylinders. Firing of the working cylinders is synchronized with engine speed to reduce unwanted engine vibrations.

Abstract: The invention relates to a method and a device for optimizing combustion of diesel fuels with different cetane numbers in a diesel internal combustion engine. It is provided that cylinder pressures are measured in at least one cylinder of the internal combustion engine during the combustion period, that at least one part of the measured cylinder pressures is evaluated in order to derive a characteristic value for the diesel fuel that is fed into the cylinder of the internal combustion engine, and that the characteristic value is used to change parameters that determine the combustion in the cylinders of the internal combustion engine.

Abstract: A method to optimize operation of a diesel fuel engine having at least one aftertreatment device to reduce NOx is provided. An electronic control unit for a diesel engine with an aftertreatment device for the reduction of NOx is also provided. The method and the control unit optimize a quantity of fuel to be injected into an aftertreatment device based upon inputs relating to the cost of diesel fuel and the cost of diesel exhaust fluid.

Abstract: The claimed subject matter provides a system and/or a method that facilitates generating a point of interest related to a map. An interface component can collect a portion of annotation data from two or more users, wherein the portion of annotation data is associated with a digital map and includes at least one of a map location and a user specific description of the map location. An annotation aggregator can evaluate annotation data corresponding to the map location on the digital map. The annotation aggregator can create a point of interest (POI) for the map location based upon the evaluation and populates the digital map with at least one of an identified location extracted from two or more users or a universal description extracted from two or more users.

Abstract: A method for operating a vehicle is provided. The method includes, in one example during a first a rate of change of an inclination of the vehicle, adjusting a fuel level indication based on the inclination and a level of fuel within the fuel tank; and during a second rate of change of the inclination different from the first rate of change, adjusting the fuel level indication based on actual fuel consumption of the engine. In this way, it is possible to provide an accurate fuel level indication based on the inclination when the inclination is not changing too quickly. However, when inclination is changing quickly and may give degraded level readings, it is still possible to provide an accurate fuel level by transiently estimating fuel usage and using, for example, a previous fuel level reading from when the inclination was not changing too quickly.

Abstract: A method and apparatus are provided that allow an off-the-shelf USB flash memory device to used with a scan tool. The USB flash memory device can have a different operating system then the proprietary operating system of the scan tool. The method and apparatus allows the scan tool to read from and write on the USB flash memory device regardless of the formatted operating system on the device.

Abstract: A method comprising receiving a fuel injection signal from a first driver circuit via a control line, feeding the fuel injection signal to a second fuel injector driver circuit, sending a control signal output from the second fuel injector driver circuit to a fuel injector, monitoring the fuel injector for degradation based on operation according to the control signal, and in response to degradation of the fuel injector, changing a state of the control line.

Abstract: A vehicle event recorder is provided that includes a camera for capturing a video as discrete image frames, and that further includes a managed loop memory and a management system for generating a virtual ‘timeline dilation’ effect. To overcome size limits in the buffer memory of the video event recorder, the maximum time extension of a video series is increased by enabling a reduction in temporal resolution in exchange for an increase in the temporal extension. Memory cells are overwritten in an ‘interleaved’ fashion to produce a reduced frame rate for the recording of certain time periods connected to an event moment. In time periods furthest from the event moment, the resulting frame rate is minimized while in time periods closest to the event moment, the resulting frame rate is maximized.

Abstract: The precision of an intake manifold model for a supercharged internal combustion engine can be improved, wherein a first pressure value in the inlet tract (3) downstream of a throttle valve (6) and upstream of a compressor (7) and second pressure value (3) downstream of the compressor (7) are calculated by means of the intake manifold model. Furthermore, a first reference pressure and a second reference pressure are recorded by two pressure sensors (13, 14). It is determined whether the internal combustion engine (1) is operating in charging mode or not. The intake manifold model is then corrected on a difference between the first pressure value and the first reference value and a difference between the second pressure value and the second reference value depending on whether the operating mode is the charging mode or not.

Abstract: A method of determining whether a fault condition of an intake air temperature (IAT) sensor of an engine is present includes estimating a first manifold absolute pressure (MAP) based on a previously estimated first MAP and an estimated first mass air flow (MAF) as a function of the previously estimated first MAP and estimating a second MAP based on a previously estimated second MAP and a currently measured MAF. An IAT difference is determined based on the first MAP and the second MAP. Whether the fault condition of the IAT sensor is present is determined based on the IAT difference.

Abstract: An engine and related control system determine an amount of fuel diluting the engine oil in the oil pan. Such information can be used to recommend an oil change and to estimate a fraction of biodiesel in the fuel supplied to the engine. According to one embodiment, actual oil volume in the oil pan is based on a signal from a level sensor in the oil and a theoretical oil volume is determined based on initial oil volume and fuel entering the oil in the oil pan, fuel leaving the oil pan due to evaporation, and oil being consumed in the combustion chamber. Based on the difference between the actual and theoretical oil volumes, a proportion of heavy fuel components or biodiesel can be determined and transmitted to an engine control system.

Abstract: A transmittance sensor that detects the optical transmittance of biofuel is provided on a fuel tank that stores biofuel to be supplied to an internal combustion engine. An ECU periodically acquires the optical transmittance detected by the transmittance sensor, and calculates the amount of change from the previous value. In addition, the ECU calculates a degradation index value indicating the degree of degradation of the biofuel by accumulating the amount of change.

Abstract: A method for regenerating a particulate filter configured to treat engine exhaust gas in a vehicle equipped with an on-board navigation and an extra-vehicle communications system includes monitoring present operation of the vehicle, projecting vehicle operating conditions based upon information from the on-board navigation and the extra-vehicle communications system, monitoring a storage capacity of the particulate filter, executing a control scheme to regenerate the particulate filter when the storage capacity of the particulate filter exceeds an upper threshold, executing the control scheme to regenerate the particulate filter when the storage capacity of the particulate filter is less than the upper threshold and in response to an operator request to regenerate the particulate filter, and executing the engine control scheme to regenerate the particulate filter when the storage capacity of the particulate filter is less than the upper threshold and the projected vehicle operating conditions indicate an oppo

Abstract: A driving control system includes a controller which is configured to, in response to a command for starting an auto-cruise mode generated by the operation of an input device, control an engine speed or a vehicle speed so that a value detected by a speed detector falls within a cruising speed range, when the value detected by the speed detector is outside the cruising speed range; and to then cause the watercraft to cruise at a constant engine speed or at a constant vehicle speed.

Abstract: A method and control system for controlling an engine in a vehicle includes broadcasting a control signal including instructions for modification of a vehicle parameter to the vehicle during operation of the engine.

Abstract: A method of operating a vehicle including, during operation of the engine, receiving a control signal broadcast from outside the vehicle including instructions for modifying a vehicle operating parameter and modifying the vehicle operating parameter in accordance with the instructions.

Abstract: A multi sensor detection and disabling lock system includes detector cases for holding interchangeable detectors that sample for chemical, biological and radiological compounds, agents and elements, with each detector case disposed in or upon the monitored product whereupon light alarm indicators (color coded) on the detector case light up when a specific compound or agent is detected whereupon the detector case transmits detection information to a monitoring computer terminal and transmits a signal to a lock disabler engaged to the product to lock or disable the product's lock thereby preventing untrained, unauthorized and unequipped individual's from gaining access and entry to the product, and also preventing further contamination of the area. An authorized individual resets the detection system, and the system's power source is electrical, battery or computer generated.