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| Number | Title | Issue Date |
| 8161946 | Fuel injector interface and diagnostics 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 i... | 04/24/2012 |
| 8056538 | Method and system to prevent unauthorized uses of engine controllers A method and control module for enabling or disabling control of an engine includes a check module receiving signals through a wiring harness and comparing the check signals to a threshold. The control module also includes an engine control module disabling the engi... | 11/15/2011 |
| RE42771 | Method of operation of a device for energy conversion using a main fuel and at least one auxiliary fuel A method for operating a converter for the energy conversion of fuel from at least one main fuel supply, and from at least one auxiliary fuel supply for operating the converter directly and/or by operating an auxiliary unit, comprises: detecting the amount of fuel i... | 10/04/2011 |
| 8015963 | Fuel pressure control strategy at engine shutdown A fuel system control method may include determining when an engine transitions from an engine on condition to an engine off condition. The method further includes determining a first fuel pressure in a fuel system of the engine a predetermined time after the determ... | 09/13/2011 |
| 7931008 | Systems and methods for detecting failed injection events A fuel injection system includes an injector control module, a current detection module, and a position determination module. The injector control module controls current through a solenoid of a fuel injector for a predetermined period. The current detection module ... | 04/26/2011 |
| 7878180 | Method and apparatus for determining operation errors for a high pressure fuel pump A control system and method for controlling pump includes a pump control module communicating a drive signal to the high pressure pump and a high pressure pump in communication with the pump control module operating in response to the drive signal. A current samplin... | 02/01/2011 |
| 7793640 | Method and device for operating an internal combustion engine An injection valve of an internal combustion engine is actuated at least once by at least one specified control value of an actuating variable for metering at least one specified minimum quantity corrected by a correction value. The correction value for the control ... | 09/14/2010 |
| 7784445 | Control unit for internal combustion engine There is proposed a control unit for an internal combustion engine, which comprises a boost circuit, a switching element, a current detecting resistor and a controller and is designed to be actuated such that the boost circuit is used to boost a power source voltage... | 08/31/2010 |
| 7707994 | Fuel injection controller A single fuel injection is performed in either one of cylinders during fuel cut control of a diesel engine to sense torque generated with the single fuel injection based upon an increase amount of rotation speed of a crankshaft at the time. Presence/absence of abnor... | 05/04/2010 |
| 7665443 | Control system of a fuel injection apparatus of an internal combustion engine A control arrangement for a fuel injection apparatus of an internal combustion engine, the fuel injection apparatus comprising at lest two fuel injector nozzles, the injection action of which is controllable via a solenoid, and at least two control units arranged to... | 02/23/2010 |
| 7640918 | Drive circuit for an injector arrangement and a diagnostic method The invention relates to a drive circuit for an injector arrangement having a fuel injector, and a method of detecting faults in the drive circuit. The drive circuit includes a diagnostic tool that senses a measured voltage between the injector and a known voltage l... | 01/05/2010 |
| 7624721 | Drive circuit for an injector arrangement and a diagnostic method The invention relates to a drive circuit for an injector arrangement comprising a first fuel injector in parallel with a capacitive component. The drive circuit comprises: a selector means and diagnostic means. The selector means is operable to select the first fuel... | 12/01/2009 |
| 7497205 | Controller and control method for an engine control unit The invention provides a controller for determining the presence of faults within a fuel injection system of an engine system. The engine system comprises a first injector and at least one further injector, each injector comprising a needle control valve and a press... | 03/03/2009 |
| 7497204 | Drive circuit for an injector arrangement and a diagnostic method The invention relates to a drive circuit for an injector arrangement comprising a first fuel injector in parallel with a capacitive component. The drive circuit comprises: a selector means (SQ1, SQ2) and diagnostic means. The selector means (SQ... | 03/03/2009 |
| 7444993 | Method for monitoring the operability of a fuel injection system A method for monitoring the operability of injection system of an internal combustion engine is described whereby, if the quantity of fuel injected changes, a malfunction source is detected according to the behavior of the pressure obtaining in the high-pressure acc... | 11/04/2008 |
| 7439700 | Control system A control system which is capable of avoiding an overloaded state of an actuator without using sensors or the like. An ECU 2 of the control system 1 calculates a lift control input U_Liftin to a variable valve lift mechanism 50 with an algorithm... | 10/21/2008 |
| 7392793 | Fuel injection controller A fuel injection controller calculates a fuel pressure-feeding start angle of a fuel pump as a valve opening start angle of a metering valve, which regulates a discharge amount, by adding a base angle and a feedback correction value. The base angle is calculated in ... | 07/01/2008 |
| 7377239 | Method for operating an internal combustion engine, computer program product, computer program, and control and/or regulating device for an internal combustion engine A method for operating an internal combustion engine, a computer program product, a computer program, and a control and/or regulating device for an internal combustion engine make detection of an erroneously permanently closed intake valve for a cylinder of the inte... | 05/27/2008 |
| 7370638 | Fuel injection control system ensuring steady balance in pressure in accumulator An accumulator fuel injection system working to energize fuel injectors to inject fuel at a sequence of injection timings into an internal combustion engine and also to control a fuel pump to feed the fuel to an accumulator at a sequence of controlled times for comp... | 05/13/2008 |
| 7367321 | Erroneous connection detecting method of ignition devices and apparatus of the same A method and an apparatus detect an erroneous connection between a plurality of ignition devices and a fuel injection control device. A first time interval is measured from an input of an ignition signal for a certain cylinder to an input of the next ignition signal... | 05/06/2008 |
| 7360406 | Method of determining the rest position of an internal combustion engine The final rest position of an internal combustion engine crankshaft is determined by counting pulses of a CRANK signal responsive to crankshaft rotation after engine turn-off and evaluating the timing of the pulse edges to detect reversals in the direction of cranks... | 04/22/2008 |
| 7359795 | Calibration method for air intake tracts for internal combustion engines A Calibration Method for Air Intake Tracts for Internal Combustion Engines is disclosed. The method tunes the replacement cold air intake so that the Original Equipment Mass Airflow Sensor will function with the emissions control system without check engine light il... | 04/15/2008 |
| 7353095 | Diagnostic system for watercraft A diagnostic system is provided for a watercraft that is propelled by an outboard drive. Sensors can detect conditions of components related to at least the operation of the outboard drive. The diagnostic system can leave inside and outside computers. The inside com... | 04/01/2008 |
| 7349794 | Engine protection system An engine protection system and protocol is implemented within an electronic control module. Various engine parameters, such as engine coolant level, coolant temperature, transmission fluid temperature, and engine oil pressure are monitored and compared to limit val... | 03/25/2008 |
| 7334570 | Common rail fuel injection system with accumulator injectors A fuel injection system for an internal combustion engine includes a common rail, a plurality of accumulator injectors, and at least one accumulator controller separate from the accumulator injectors and connected to the common rail. Each accumulator controller incl... | 02/26/2008 |
| 7322345 | Stuck-open failure detection system for gas-fuel injection valve Disclosed is a stuck-open failure detection system for a gas-fuel injection valve adapted to inject or supply gas fuel into/to a combustion chamber of an engine, which comprises: a shutoff value interposed in a fuel supply passage fluidically connected to the gas-fu... | 01/29/2008 |
| 7320307 | Manifold pressure control for a variable event valvetrain A method for improving engine intake manifold pressure control of an internal combustion engine is described. According to one aspect of the description, the manifold pressure may be controlled to reduce fuel consumption and engine emissions during at least some ope... | 01/22/2008 |
| 7318409 | Vehicle engine control system utilizing humidity sensor A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel econ... | 01/15/2008 |
| 7318420 | Control apparatus for internal combustion engine A drive control circuit supplies power to a solenoid coil in an in-cylinder injector of a cylinder in response to a fuel injection signal. A failure detection circuit to detect disconnection failure at an in-cylinder injector is arranged to be shared among cylinders... | 01/15/2008 |
| 7310574 | Electronic architecture of an automatic system for driving an internal combustion engine An architecture of an ignition and/or injection managing system for an internal combustion engine, of the type structured to cooperate with an electronic engine control unit. Also included is an electronic device architecture for determining the operating phase of a... | 12/18/2007 |
| 7305972 | Method of controlling an internal combustion engine In a method of controlling an internal combustion engine having a common rail fuel injection system including individual fuel storage chambers, wherein the pressure pattern of the fuel supplied to each injector can be determined and actual and virtual fuel injection... | 12/11/2007 |
| 7305971 | Fuel injection system ensuring operation in event of unusual condition A common rail fuel injection apparatus for an engine is provided which is equipped with a rail pressure sensor working to measure the pressure of fuel in a common rail, fuel injectors, and a controller. When the operation state of the rail pressure sensor monitored ... | 12/11/2007 |
| 7302337 | Method and computer program for identifying a fault in an engine A method for identifying a fault associated with an individual cylinder of a multicylinder combustion engine, comprising the steps of: accelerating the combustion engine to a first engine speed (L1); interrupting the fuel supply to all cylinders except the in... | 11/27/2007 |
| 7299788 | Internal combustion engine and method of detecting abnormality of internal combustion engine When fuel supply is stopped while an engine is decelerating, pressure in each cylinder is detected using a pressure sensor, and the peak value of the pressure in each cylinder is determined. Also, an intake air amount is detected when the fuel supply is stopped, and... | 11/27/2007 |
| 7295913 | Engine control apparatus for motorcycle and motorcycle An engine control apparatus for a motorcycle capable of detecting an abnormality such that there is no change in vehicle behavior even when the abnormality is brought about. A control CPU controls injection and ignition of an engine and a throttle valve. A monitor C... | 11/13/2007 |
| 7280910 | Engine protection method and apparatus, and engine power control method and apparatus for cargo handling vehicle A method and an apparatus for protecting an engine are disclosed which are capable of preventing damage to the engine or associated parts thereof. The engine is provided with an electronic control fuel injection system. A quasi-abnormality of at least one of variabl... | 10/09/2007 |
| 7280339 | Operating device for inductive electrical actuators A power circuit provided with an operating circuit for each electrical actuator and including a set of switches controlled selectively to regulate the current flowing through the electrical actuator. The operating device includes a control circuit which can cause th... | 10/09/2007 |
| 7273039 | Control apparatus for vehicular internal combustion engine In a case where fuel injection system abnormality is detected, and fuel supply stop processing is carried out against the abnormality, since a judgment is made using a misfire judgment, in a case where the misfire judgment is carried out in a periodic measurement sy... | 09/25/2007 |
| 7270116 | Method for diagnosing variable intake system An internal combustion engine comprises an engine controller (ECU) governing fuel supply to the combustion engine by a fuelling map, which adapts the amount of fuel supplied to the engine responsive to engine speed, engine load and a volumetric efficiency of the eng... | 09/18/2007 |
| 7258103 | Control apparatus for internal combustion engine An engine ECU executes a program including the steps of: when the port fuel injection ratio is 100% (YES at S200), sensing the engine coolant temperature THW (S210); when the engine coolant temperature THW is higher than a threshold value (YES at S2... | 08/21/2007 |
