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Data Processing: Vehicles, Navigation, And Relative Location > Vehicle Control, Guidance, Operation, Or Indication > With Indicator Or Control Of Power Plant (e.g., Performance) > Internal-combustion Engine > Digital Or Programmed Data Processor > Backup, Interrupt, Reset, Or Test Backup, Interrupt, Reset, Or TestBackup, Interrupt, Reset, Or Test patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/07/06 - 20060276955 - Method for determining the temperature downstream the entry of a catalytic converter for a turbocharged engine This method for determining, in a turbocharged engine, the temperature of the exhaust gases downstream of the turbine of the turbocharger, comprises the following steps: determining the temperature upstream of the turbine of the turbocharger, calculating a corrective term from engine operating parameters, and determining the temperature downstream of the ... 11/23/06 - 20060265117 - Method for managing a transportation fleet A portable memory device used in substitution of an automobile key and interfaced with an automobile onboard computer and ignition system. The portable memory device contains data that, when read by the onboard computer, enables the ignition system. The portable memory device is read and write capable, thereby allowing for ... 11/16/06 - 20060259229 - Method and device for determining an angular position signal of an internal combustion The present invention relates to a method for detecting an angular position signal representing the rotary motion of a rotating part of an internal-combustion engine. The internal-combustion engine includes at least one combustion chamber. In addition, a speed sensor of the type mentioned initially is provided, the speed sensor outputting ... 11/02/06 - 20060247843 - Systems and methods for resetting vehicle emission system error indicators A method of resetting an active emissions system error indicator associated with a vehicle. The method comprises performing at least a first requesting step, where the requesting step is performed indirectly by using a record mode function until said active e emissions system error indicator resets in response to the ... 11/02/06 - 20060247842 - Diagnostic tool for sensing oxygen sensor heater operation A diagnostic testing system for a vehicle comprising an oxygen sensor having a heating element for heating the oxygen sensor to its minimum operational temperature, an analyzer having a user interface, a communications link between the analyzer and the vehicle to obtain data from the oxygen sensor, and a diagnostic ... 10/26/06 - 20060241852 - Method for calibration of the cylinder sensors suite on an internal combustion engine with individual cylinder operation in particular in a motor vehicle A method for calibrating at least two sensors for sensing a variable characterizing the combustion process in an internal combustion engine of a motor vehicle, operated in individual-cylinder fashion and having at least two cylinders, is provided. According to the present invention, at least one operating point of the internal ... 10/12/06 - 20060229798 - Control apparatus for an internal combustion engine A control apparatus for an internal combustion engine can detect a tubing disconnection failure of an intake pressure sensor thereby to make it possible to give a warning to a user and to take appropriate measures to cope with such a failure situation. A control unit controls the engine based ... 10/12/06 - 20060229797 - Engine control apparatus An engine control apparatus includes a valve operating mechanism for transmitting the rotation of a crankshaft to camshafts through a timing wrapping member. A control unit includes a phase detection section that detects the phase of a camshaft relative to the crankshaft, an abnormality determination section that makes, based on ... 10/12/06 - 20060229796 - Evaporative system leak detection upon refueling A loose or missing fuel cap detection method for an evaporative emission control system of an automotive vehicle detects a loose or missing fuel cap based in part on whether fuel level changed. The method determines whether the fuel level changed, which is indicative of a refueling event. The method ... 10/12/06 - 20060229795 - Method for the diagnosis of driver outputs and diagnosis pulse manager The invention relates to a method for the diagnosis of driver outputs (20) and to a diagnosis pulse manager (10) that can supply a pulse to a driver output (20) in order to carry out a diagnosis of said driver output. As a plurality of diagnosis pulses may be required ... 10/05/06 - 20060224299 - Process for determining the operating parameters of an injection device A process for determining the operating parameters of an injection device of a combustion engine includes the steps of: (a) selecting an injector to test; (b) calculating a mean velocity associated with a preceding injector arranged before the injector to test; c) applying to the injector to test an injection ... 10/05/06 - 20060224298 - Method for pulsation correction within a measuring device measuring a media mass flow A method and a device for the pulsation correction of measured values of a flow device, which is used to measure pulsating gas flows in internal combustion engines. A raw signal of the flow sensor is fed to an adder of a compensation circuit. The raw signal is at the ... 09/28/06 - 20060217873 - Early warning and protection for heat exchange systems Method and apparatus are provided for warning a user or operator about a malfunction in a pump and/or engine of a marine vessel or another suitable device or equipment, featuring steps of: comparing a sensed pressure differential at a sensed RPM when the pump/engine is running to a learned database ... 09/28/06 - 20060217872 - Control device for internal combustion engine and method for determining misfire in internal combustion engine An internal combustion engine (1) generates power by burning an air-fuel mixture in a combustion chamber (3). The internal combustion engine (1) is provided with an in-cylinder pressure sensor (15) and an ECU (20). The ECU 20 calculates at two predetermined points control parameters each of which is a product ... 09/14/06 - 20060206255 - Spark-plug ldv, lif, and lii probe for engine flow and combustion analysis A traversable, fiber-optic probe design for flow-related measurements in a production-car IC engine during normal operating conditions may be fitted into an M8 spark-plug hole and traversed as much as 50 mm in an axial direction of the spark plug, allowing measurements inside the engine cylinder including the spark plug ... 09/07/06 - 20060200301 - Engine control method and device An engine control method and compensation suitable for the case that both of two manifold pressure sensors in individual groups have failed. When detection outputs from two manifold pressure sensors are different from each other, a first comparing section determines that one of the two sensors is abnormal. A manifold ... 08/24/06 - 20060190161 - Control apparatus and method for internal combustion engine A control apparatus for an internal combustion engine includes a crankshaft, a camshaft for actuating a valve of the engine, and a rotating electrical machine that is coupled to one of the crankshaft and the camshaft. The apparatus includes a computer that controls the rotating electrical machine. The rotating electrical ... 08/24/06 - 20060190160 - Engine testing device which simulates dynamic gas exchange A testing device allows a test engine (such as a single-cylinder test engine) to experience the air exchange characteristics of a multi-cylinder test engine having a greater number of cylinders. The test engine receives air from an air source (such as the atmosphere) through the interior passage of an air ... 08/17/06 - 20060184311 - Method for diagnosing errors in an intake system of an internal combustion engine having a variable intake manifold geometry A method for diagnosing errors in an intake system of an internal combustion engine having a variable intake manifold geometry is provided. According to the method, an air mass flow oscillation in the intake manifold is detected at an engine rotational speed that is present, the detected air mass flow ... 08/17/06 - 20060184310 - Failure diagnostic method and apparatus for manifold pressure sensor To identify a failed manifold pressure sensor in a control apparatus having two manifold pressure detection systems as a. A calculating unit calculates a difference between the manifold pressure detected by two sensors. A first comparing unit outputs an abnormal signal when the difference is larger than a threshold value. ... 08/17/06 - 20060184309 - Failure diagnostic method and apparatus for atomospheric pressure sensors To identify a failed atmospheric pressure sensor in a control apparatus having two atmospheric pressure detecting systems as a failsafe. A first comparing unit outputs an abnormal signal when a difference between atmospheric pressures detected by two sensors is larger than a threshold value. An atmospheric pressure estimating unit estimates ... 08/17/06 - 20060184308 - Failure diagnostic method and apparatus for manifold pressure sensors A failed manifold pressure sensor is identified in a control apparatus having two manifold pressure detecting systems as a failsafe. A first comparing unit outputs an abnormal signal when a difference ΔP between manifold pressures PMa and PMb detected respectively by two sensors is larger than a threshold value DP. ... 08/10/06 - 20060178803 - Control apparatus and method for internal combustion engine A control apparatus for an internal combustion engine includes a crankshaft, a camshaft for actuating an intake valve of the engine, a crank position sensor that outputs a crank signal every time the crankshaft rotates 10° of crank angle, an electric motor that is coupled to the camshaft, and an ... 08/03/06 - 20060173608 - Exhaust gas diagnosis system and vehicle control system An exhaust gas diagnosis system and a vehicle control system for automotive vehicles to reduce the communication lines and the power lines connected to the antiweatherability-required exhaust gas sensor arranged on the exterior of the vehicle are disclosed. The exhaust gas diagnosis system is configured of an engine control unit ... 08/03/06 - 20060173607 - Engine suction air flow rate measuring device The present invention embodies an engine intake air flow meter measuring a mass flow rate based on measured pressures in an intake pipe, such as a pressure difference between two points and a pressure at a point. Operations for integration and double integration of the pressure difference are performed, and ... 07/27/06 - 20060167615 - Method and apparatus for controlling an engine using a cam signal In an apparatus, an abnormality determining circuit determines whether a crank signal is abnormal, and a switching circuit switches an input signal to an edge interval measuring circuit from the crank signal to a cam signal when it is determined that the crank signal is abnormal. The edge interval measuring ... 06/29/06 - 20060142932 - Plant temperature control system In a temperature control system of a plant such as an engine exhaust system, there are provided a catalyst heat model calculating a temperature estimated value of the plant, a temperature sensor model inputting the calculated value to calculate an output estimated value of a temperature sensor, a temperature controller ... 06/29/06 - 20060142931 - Method for determining malfunction of pressure sensor A method for determining a malfunction of a pressure sensor determines that a stick malfunction occurs in the pressure sensor by an ECU calculating a difference between a maximum value and a minimum value of a voltage value output from the pressure sensor mounted in a fuel tank and determining ... 06/29/06 - 20060142930 - Internal cylinder pressure detection An in-cylinder pressure sensor outputs a signal corresponding to a change rate of an internal cylinder pressure of an engine. The output signal of the in-cylinder pressure sensor is filtered so that frequency components lower than frequencies that substantially compose an internal cylinder pressure required for controlling the engine are ... 06/29/06 - 20060142929 - Device and method for estimation of an engine torque Alternating torque {tilde over (M)}kv(φ) or the mean indicated pressure Pml is to be determined from the angular velocity ω from the engine speed, for engine management, for example. Charge pressure compensation (5) must be effected in order for a usable result to be obtained. By preference sensor wheel error ... 06/22/06 - 20060136119 - Alternator and starter tester apparatus and method An alternator and starter tester system is provided that includes a protective hood or cover, a controller connecting an LCD touch-screen, an alternator main harness connector, a starter harness self-test connector, a barcode connector, USB host and USB function connectors, an Ethernet connector, and a compact flash connector. A multiplexer ... 06/22/06 - 20060136118 - Method and device for determining the phase position of a camshaft of an internal combustion engine The invention relates to an internal combustion engine comprising a crankshaft, a camshaft and an adjusting device, which is used to adjust the phase position of the camshaft in relation to the crankshaft. The phase position is determined in accordance with a detected crankshaft angle and a recorded camshaft angle. ... 06/15/06 - 20060129307 - Misfire detection apparatus Misfire of an engine is detected by extracting a pressure component of combustion from an output of a pressure sensor disposed in a cylinder. An engine misfire detection apparatus obtains a combustion parameter Cr that is a correlation between a reference signal Fc synchronous with the combustion cycle of the ... 06/15/06 - 20060129306 - Method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine In a method for producing at least one characteristic line of an air mass detecting device for an internal combustion engine precise results can be obtained in the case of a pulsating air flow in a suction region of the internal combustion engine by an air mass detecting device, wherein ... 06/08/06 - 20060122766 - Method for operating an internal combustion engine A method for operating an internal combustion engine enables an improved determination of a preferred position of a shaft of the internal combustion engine. The preferred position of the shaft is derived here on the basis of a signal characterizing a course of combustion of the internal combustion engine as ... 06/01/06 - 20060116813 - Stroke determination system for four stroke cycle engine A system for performing stroke determination and cylinder determination by using intake pressure as a parameter, in order to provide a stroke determination system for a four stroke cycle engine by which accurate determination can be achieved. ... 06/01/06 - 20060116812 - Combustion state detecting apparatus for an engine A combustion state detecting apparatus is provided for an engine having internal pressure sensor for detecting an internal pressure of a combustion chamber of the engine and crank angle detector for detecting a crank angle of the engine. The apparatus calculates a volume of the combustion chamber based on the ... 05/18/06 - 20060106528 - Evaluation method of diagnostic function for a variable valve mechanism and evaluation apparatus for a variable valve mechanism Evaluation of a diagnosis function for diagnosing a transient response of a variable valve mechanism for an engine valve is executed in a manner such that a desired value on the variable valve mechanism is calculated based on testing signals of a rotating speed and a water temperature, that a ... 05/18/06 - 20060106527 - Evaluation method of diagnostic function for variable valve mechanism and evaluation apparatus for variable valve machanism Evaluation method of evaluating a diagnosing function for a variable valve mechanism of an engine valve in which a desired value used for feedback-control of the variable valve mechanism is subjected to a low-pass filter processing so as to produce a state such that a response delay of the variable ... 05/18/06 - 20060106526 - Engine measuring equipment Engine measuring equipment for obtaining engine torque regarded as necessary for engine performance assessments for a short time period during a period when engine revolution is under a transient state is disclosed. The engine measuring equipment includes a central control unit for controlling throttle opening degrees due to revolution of ... 05/11/06 - 20060100772 - Method for the detection of faults in the engine control in internal combustion engines having at least two control units A system and method for monitoring the control of an engine having at least two control units, which is constructed of at least two cylinder rows or of two partial engines is provided. A control unit is assigned to each cylinder row or each partial engine, which control unit, on ... 05/04/06 - 20060095198 - Method for determining a combustion chamber pressure A method for determining a combustion chamber pressure of an internal combustion engine is described, which is used for a simple and accurate correction of the determined combustion chamber pressure. For this purpose, a first time curve of the combustion chamber pressure is compared with a second time curve of ... 04/27/06 - 20060089783 - Method for monitoring an exhaust gas system of a motor vehicle A method for monitoring a vehicle exhaust system may include (1) measuring exhaust-gas temperature at an outlet side of an exhaust pipe section which is intended to accommodate a component with a purifying activity, (2) measuring exhaust-gas temperature at an inlet side of the exhaust pipe section, and (3) comparing ... 04/13/06 - 20060080028 - Method and device for operating a combustion engine A method and a device for operating a combustion engine allow a plausibility check of two pressure sensors in a mass-flow line of the combustion engine in any operating range of the combustion engine. At least one component effecting a pressure drop is provided in the mass-flow line, and a ... 03/23/06 - 20060064231 - Method and apparatus for detemining the rotational speed of turbochargers The invention relates to a method and a corresponding apparatus for detecting the rotational speed of turbochargers, especially on internal combustion engines in motor vehicles, with the steps: recording the body sound (SE) of the turbocharger and analyzing the frequency spectrum (30, 31, 32, 33) of the recorded body sound ... 03/09/06 - 20060052931 - Failure diagnosis apparatus for evaporative fuel processing system A failure diagnosis apparatus for diagnosing a failure of an evaporative fuel processing system wherein a pressure in the evaporative fuel processing system is detected, and a purge control valve and a vent shut valve are closed when stoppage of the engine is detected. A determination is made as to ... 03/02/06 - 20060047408 - Engine diagnostic apparatus and method that analyzes the output of a driven electric power generator In the present art, the closest detectable points in time that are available for electronic engine analyzers to ascertain of the functionality of most engines are the times when spark pulses occur. The present invention utilizes the output of driven electric power generators to both ascertain when those sparks (or ... 03/02/06 - 20060047407 - Method for diagnosing catalytic converter performance A method of generating a metric data set for determining a performance of a catalytic converter includes sampling data from a post catalytic converter oxygen sensor to provide a raw data set and generating a revised data set based on the raw data set. Data within the revised data set ... 02/09/06 - 20060031001 - System and method for transfer of feedback control for a process control device Disclosed herein is a controller and method useful for transferring control of a process control device between first and second control modes. The controller includes first and second servo control modules that generate first and second drive signals based on feedback information from first and second sensors for control of ... 02/09/06 - 20060031000 - Fuel nature measuring device of internal combustion engine and internal combustion engine having the same A fuel nature measuring device for measuring the nature of fuel stored in a fuel tank includes a measurement passage, a gas flow generator, a pressure detector, an concentration operator, a temperature detector, and a volatility calculator. The measurement passage has an orifice. The gas flow generator generates gas flow ... 02/09/06 - 20060030999 - Method of calculating the amount of work done by an internal combustion engine A method of calculating the amount of work done by an internal combustion engine, which is capable of calculating a work amount parameter indicative of the amount of work done with accuracy while compensating for a phase delay in in-cylinder pressure data caused e.g. by a filtering process performed thereon. ... 01/26/06 - 20060020386 - Estimation of oxygen concentration in the intake manifold of an unthrottled lean burn engine A method of estimating oxygen concentration in the intake of a lean burn engine is accomplished during throttled operation by repeatedly combining determined air/fuel ratio and intake mass air flow and estimated cylinder mass flow and exhaust gas recirculation flow in a state observer, which calculates exhaust and intake burned ... 12/29/05 - 20050288848 - Method and apparatus for measuring oil aeration of an engine A density ρ0 of pure oil and a density ρa of air are calculated based on a measured oil pressure P and a measured oil temperature T of an oil line connecting a hydraulic pump of an engine and an oil gallery of a cylinder block, and then oil aeration ... 12/29/05 - 20050288847 - Abnormality diagnosis method and apparatus for gas concentration measuring device An abnormality diagnosis method for a gas concentration measuring device, includes electrically shutting off measurement means from an oxygen concentration detecting cell and an oxygen pump cell of a gas sensor when a voltage at one of electrical connection points through which the measurement means is electrically connected to the ... 12/22/05 - 20050283304 - Engine control circuit An engine control circuit includes a battery voltage detector, a signal supervisor, and a processor that operates in a normal mode and a power-down mode. The battery voltage detector senses the output voltage of a battery that supplies current to the engine, and asserts a detection signal when the voltage ... 12/22/05 - 20050283303 - Power take-off state and engine speed request Apparatus are provided for PTO related engine control having improved failure modes and communication with PCM or ECM independent of input architecture. The apparatus includes a control module for a vehicle powertrain having an input circuit receiving signals corresponding to a four-bit code, and a processor connected to the input ... 11/10/05 - 20050251322 - Virtual cylinder pressure sensor with individual estimators for pressure-related values A virtual cylinder pressure sensor for use with an internal combustion engine. The sensor has one or more independent modules, each used to estimate a different cylinder pressure variable. Each module is trained using measurement data from a physical cylinder pressure sensor and a real engine. After the modules are ... 11/10/05 - 20050251321 - Determining engine cylinder contribution from indexed engine data An engine diagnostic system is provided that enables a service technician to evaluate engine cylinder contribution to output power. The service technician couples one or more signal leads to the vehicle's battery, alternator, or accessory receptacle (e.g., cigarette lighter receptacle) to provide an alternator output signal to a signal analyzer. ... 10/27/05 - 20050240339 - Diagnostic system for internal combustion engine A diagnostic system for an internal combustion engine including a plurality of cylinder banks. The system includes a throttle position sensor mounted in each of the cylinder banks, for detecting a throttle opening of a throttle valve of an associated one of the cylinder banks. The throttle openings of the ... 10/27/05 - 20050240338 - Method and apparatus for indicating air filter maintenance is required A system and method for indicating required maintenance of an air filter used with an internal combustion engine. The system includes a throttle plate for adjusting an amount of airflow passing into cylinders of the engine. The system includes a throttle plate position sensor and a processor. The processor is ... 10/27/05 - 20050240337 - Method and device for monitoring the direction of rotation of a piston engine A method and device for detecting the rotation direction of a piston engine, internal combustion engine or piston compressor. The piston engine includes at least one cylinder, a piston movable back and forth in the cylinder, a cylinder chamber formed inside the cylinder which is delimited by an inner cylinder ... 10/20/05 - 20050234635 - Method for operating an internal combustion engine and device for executing the method A method for operating an internal combustion engine and a device for executing the method which are based on the fact that a throttle valve is situated in the intake port and an exhaust emission control device is situated in the exhaust system. The air flow setpoint value for the ... 10/20/05 - 20050234634 - Method for checking the operability of an ambient pressure sensor of an internal combustion engine A method for operating an internal combustion engine is described, in which the ambient pressure is determined by an ambient pressure sensor and the pressure in an intake manifold of the internal combustion engine is determined by an intake manifold pressure sensor. In this method the reliability performance of the ... 10/13/05 - 20050228577 - Thermostat malfunction detecting system for engine cooling system A malfunction of a thermostat in a coolant circulating path is detected from an engine side coolant temperature in consideration of the following behavior of the coolant temperature. When an open-malfunction occurs, the coolant temperature becomes different considerably from that in the normal time in the temperature range in which ... 10/13/05 - 20050228576 - Diagnostic coordination control An engine control system includes an ignition switch that selectively initiates an ignition signal and an operating mode of an engine. A powertrain relay selectively generates a PR load signal based on the ignition signal and the operating mode. A control module enables an ignition signal diagnostic system when the ... 10/06/05 - 20050222749 - System and process for detection of weak or non-functioning cylinders in engines A system for detecting conditions indicative of substandard performance of cylinders in an internal combustion engine includes an engine control unit disposed in operable communication with the engine and a computer disposed in informational communication with the engine control unit. A method for utilizing the system includes comparing fuel requirements ... 09/29/05 - 20050216178 - Measuring arrangement and method to determine at intervals the usability potential of at least one operational fluid in an engine A measuring and testing system for a test piece (1) with at least one operational fluid, particularly to test an internal combustion engine, is provided with at least one measuring arrangement connected to a space (2) of the test piece (1) containing operational fluid, and comprising a partial measuring arrangement ... 09/15/05 - 20050203696 - System and method for diagnosing abnormalities in plant control system Causes of abnormalities of an abnormal state of a control system of a plant of a turbine or the like are estimated and diagnosed from characteristics of abnormal phenomena. By using a control system abnormality cause-and-effect matrix in which characteristics of a plurality of abnormal phenomena constructed on a knowledge ... 09/15/05 - 20050203695 - Method and device for determining the angular position of a crankshaft in an internal combustion engine A method and a device for determining the angular position of a crankshaft of an internal combustion engine, especially when shutting down the internal combustion engine, using an angle sensor, the passing by being recorded of incremental angle marks on a signal-generating wheel that is connected to the crankshaft in ... 08/11/05 - 20050177302 - Error integrator for closed-loop fault detection in an engine control system Fault monitor (20) for error input (ICPC_ERR) to closed-loop control (16) of an engine function, such as a control pressure for a fuel system (12). Error input is derived from the desired and actual data values for the function. An integration function integrates the absolute value of the input data ... 08/04/05 - 20050171680 - Method of diagnosing the operating state of a motor vehicle diesel engine a correction step (106) of correcting identified malfunctions and drifts belonging to the predetermined set of malfunctions and drifts that can be corrected by the onboard correction means. ... 07/14/05 - 20050154525 - Method for determining the charge of an activated carbon container in a tank ventilation system In a method for determining the charge of an activated carbon container of a tank venting system of a gasoline engine on the basis of the thermal influence of the tank venting system on the exhaust gas of the engine, an exhaust gas temperature measured downstream of a catalytic converter ... 06/16/05 - 20050131624 - Method for monitoring at least two electromagnetic valves of an internal combustion engine, especially an internal combustion engine of a motor vehicle in particular A device for monitoring at least two electromagnetic valves of an internal combustion engine in a motor vehicle. An actual current that is independent of the other valves may be supplied to each valve. A setpoint current is preselected for each valve. Measuring devices are provided for measuring the actual ... 06/16/05 - 20050131623 - Method, computer program, and control and/or regulating appliance for operating an internal combustion engine, and internal combustion engine In an internal combustion engine, fuel is injected directly into a combustion chamber by an injector that has a piezoactuator. An electrical charge conveyed to and/or removed from the piezoactuator is ascertained by a method that is calibrated at least once during an operating time span of the internal combustion ... 06/09/05 - 20050125140 - System for calibrating apparatus for acquiring the pressure in a motor vehicle diesel engine cylinder The invention relates to a system for calibrating apparatus (28) for acquiring the pressure in a cylinder (10) of a motor vehicle diesel engine, of the type comprising a cylinder pressure sensor (30) associated with the cylinder and means (32) for conditioning the signal delivered by the sensor (30) as ... 06/09/05 - 20050125139 - Method for operating an internal combustion engine A method for operating an internal combustion engine, in which an erroneous lift of an intake valve of a cylinder is directly determined. The lift of an intake valve of at least one cylinder of the internal combustion engine is diagnosed. A value for a specific cylinder which is representative ... 06/09/05 - 20050125138 - Apparatus and method for controlling vehicle When an operation of internal combustion engine is stopped, the power consumption of a control unit is lowered, to measure an elapsed time. When the elapsed time reaches a standby time, the processing of lowering the power consumption is cancelled, to diagnose whether or not the leakage occurs in an ... 06/02/05 - 20050119823 - Limp home control method under disconnected state of battery power line Limp home control methods are provided for situations of a disconnected battery power line. Preferred methods may comprise steps of: determining whether a battery voltage (V_EL) provided to an Engine Control Unit (ECU) via a main relay is less than or equal to a first standard value; correcting vehicle control ... 06/02/05 - 20050119822 - Computer device to calculate emission control device functionality A system is described for improving engine and vehicle performance by considering the effects of exhaust conditions on catalyst particle growth. Specifically, engine operation is adjusted to reduce operating in such conditions, and a diagnostic routine is described for determining the effects of any operation that can cause such particle ... ### FreshPatents.com Support |