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| Number | Title | Issue Date |
| 8171915 | Fuel management system for variable ethanol octane enhancement of gasoline engines Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as ... | 05/08/2012 |
| 8171914 | Method for reducing pollutant emissions and consumption of an engine To reduce pollutant emissions and consumption of passenger cars diesel engines multiple injection strategies are applied. Assuming constant cylinder and bowl geometry and constant rail pressure the variation of the number of injections, injection quantity of each in... | 05/08/2012 |
| 8161944 | Control device of the internal combustion engine A control device of an internal combustion engine that can accurately estimate an NOx concentration in exhaust gas by using a cylinder internal pressure as basic data. A cylinder internal pressure sensor provided to the internal combustion engine detects a cylinder ... | 04/24/2012 |
| 8118010 | Diagnostic systems and methods for fuel injectors in homogenous charge compression ignition engine systems An engine control system for a homogenous charge compression ignition (HCCI) engine includes a fuel injector temperature determination module and a fuel injector control module. The fuel injector temperature determination module determines a temperature of a tip of ... | 02/21/2012 |
| 8051836 | Control apparatus of internal combustion engine An internal combustion engine (1) is provided with an in-cylinder pressure sensor (15) for detecting an in-cylinder pressure in a combustion chamber (3) and an ECU (20). The ECU 20 calculates a heat release quantity parameter showi... | 11/08/2011 |
| 8001951 | Method and device for controlling an internal combustion engine In order to control an internal combustion engine according to the invention, a polytropic exponent is determined in accordance with at least two measured values of the pressure in the combustion chamber of the cylinder, said measured values being detected after clo... | 08/23/2011 |
| 7980221 | Inverse torque model solution and bounding An engine control system includes a spark bound module that determines a bounded spark value based on a desired spark value, a torque bound module that determines a bounded torque value based on the bounded spark value and a desired torque value, and an inverse torq... | 07/19/2011 |
| 7971573 | System for regulating pilot fuel supply in a combustion engine The invention relates to supplying pilot fuel to the cylinders of a combustion engine. The invention comprises cylinder-specific pressure sensors (1) that are installed in the cylinders of the combustion engine, as well as a control unit (2). The contr... | 07/05/2011 |
| 7950370 | High pressure common rail fuel system with gas injection A high pressure common rail fuel system is provided including a fuel supply, a high pressure pump assembly fluidly connected to receive fuel from the fuel supply, and a gas supply system fluidly connected to provide gas to the high pressure pump assembly to create a... | 05/31/2011 |
| 7934487 | Fuel control strategy for heating a catalyst A control system for an engine having N cylinders in first and second banks includes a catalyst heat module and a fuel control module. N is an integer greater than two. The catalyst heat module selectively operates the engine in a catalyst heat mode to heat a cataly... | 05/03/2011 |
| 7905214 | Method for ascertaining the gas work performed by the cylinder pressure on the piston of a cylinder and the internal mean pressure To determine the gas work WK from the areas formed by the cylinder pressure curve over the associated stroke volume Vα, a cylinder-pressure-proportional integrator is started integrating the signals of the cylinder pressure sensor in multiple ... | 03/15/2011 |
| 7900601 | Injection advancement for piston cooling in spark ignition direct injection engines An engine system comprises a temperature determination module, a temperature comparison module, and a fuel injection control module. The temperature determination module determines an engine temperature. The temperature comparison module compares the engine temperat... | 03/08/2011 |
| 7878177 | Internal combustion engine having common power source for ion current sensing and fuel injectors A system and method for controlling operation of a multiple cylinder internal combustion engine having fuel injectors and an ionization current sensor include a high-voltage power supply connectable to, and supplying substantially the same nominal boosted voltage re... | 02/01/2011 |
| 7870845 | Fuel injection control device and fuel injection control system A fuel injection control device controls an operation of an injector such that fuel to be injected into a combustion chamber per combustion cycle is divided and injected at least through a first injection and a second injection, which is performed with a larger fuel... | 01/18/2011 |
| 7870846 | Method and device for ascertaining one or more starts of combustion in a cylinder of an internal combustion engine from a provided cylinder-pressure curve A method for determining a point in time of a start of combustion in a cylinder of an internal combustion engine includes: providing a base compression pressure model which gives a curve of a compression pressure in the cylinder as a function of the operating point;... | 01/18/2011 |
| 7856959 | Method and apparatus for controlling exhaust gas recirculation and start of combustion in reciprocating compression ignition engines with an ignition system with ionization measurement An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a reciprocation engine is presented. The ion signals are used as a feedback signal to control EGR and diesel injection timing. The apparatus is an ignition sys... | 12/28/2010 |
| 7854218 | Method to recognize and avoid premature combustion events A method for recognizing and avoiding premature combustion events includes the steps of: providing at least one sensor and/or an electronic evaluation circuit for recognizing premature combustion; directly recogniz... | 12/21/2010 |
| 7845335 | Operating strategy for HCCI combustion during engine warm-up An engine operating in a spark-assisted homogeneous charge compression ignition mode during warm-up cycle is controlled using settings determined by interpolating between cold engine temperature settings fully warmed-up engine temperature settings. ... | 12/07/2010 |
| 7836865 | Method for fuel injection A method for starting an internal combustion engine that is operated with a fuel mixture made of at least two types of fuel. An injection of the fuel into combustion chambers of the internal combustion engine occurs starting at a predefined pressure threshold of the... | 11/23/2010 |
| 7798126 | Method for controlling cylinder charge in a homogeneous charge compression ignition engine An internal combustion engine includes a controllable throttle control device and controllable engine valves. A method for controlling the engine includes monitoring engine operation and an exhaust gas feedstream, and estimating a cylinder charge temperature based u... | 09/21/2010 |
| 7726282 | Direct injection spark ignition internal combustion engine and fuel injection method for same A direct injection spark ignition internal combustion engine includes a fuel injector for directly injecting fuel into a cylinder and intensifies a tumble flow using the fuel injected into the cylinder bore at a time near an intake stroke bottom dead center during h... | 06/01/2010 |
| 7707992 | Method and apparatus for controlling exhaust gas recirculation and start of combustion in reciprocating compression ignition engines with an ignition system with ionization measurement An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a reciprocation engine is presented. The ion signals are used as a feedback signal to control EGR and diesel injection timing. The apparatus is an ignition sys... | 05/04/2010 |
| 7703440 | Control system for internal combustion engine A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into a combustion chamber of the engine. A compression end temperature in the combustion chamber is estimated. A target compression end temperature is calc... | 04/27/2010 |
| 7703442 | Method for operating an internal combustion engine In an internal combustion engine, gasoline is injected directly into a combustion chamber and ignited by auto-ignition. The characteristics map range within which fuel is ignited by auto-ignition is enlarged by supercharging the internal combustion engine. ... | 04/27/2010 |
| 7703441 | Method and device for ascertaining a cylinder pressure feature A method for determining one or more cylinder pressure features for setting the combustion position in an internal combustion engine includes ascertaining a curve of a cylinder pressure or a curve of a cylinder pressure gradient with respect to a crankshaft angle, f... | 04/27/2010 |
| 7673618 | Control system for internal combustion engine A control system for an internal combustion engine, which is capable of estimating a property of fuel accurately even when the engine is in an operating condition other than idling. An in-cylinder pressure sensor detects an amount of change in pressure in a cylinder... | 03/09/2010 |
| 7669584 | Method and apparatus for determining piston position in an engine The invention comprises a method to determine a position of a piston in a cylinder of an engine during ongoing operation, comprising adapting pressure sensing devices to monitor in-cylinder pressure, and, operating the engine. In-cylinder pressure is monitored along... | 03/02/2010 |
| 7661408 | Method for operating internal combustion engine An internal combustion engine includes a charge motion flap which influences the combustion in at least one combustion chamber of the internal combustion engine. The function of the charge motion flap is monitored. At least one actual value of a variable characteriz... | 02/16/2010 |
| 7640915 | Fuel management system for variable ethanol octane enhancement of gasoline engines Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as ... | 01/05/2010 |
| 7637251 | Method and apparatus to determine magnitude of combustion chamber deposits A method to dynamically determine a parametric value for combustion chamber deposits (CCD), e.g. in a controlled auto-ignition engine, including in-situ evaluation of thickness of CCD, based on a sensor which monitors combustion in a homogeneous charge compression i... | 12/29/2009 |
| 7634985 | Common rail fuel control system A method of controlling a common rail fuel system for an engine is disclosed. The method includes delivering fuel to a fuel injector fluidly coupled to a common rail. The common rail is fluidly coupled to a fuel tank through a pump. The method also includes sending ... | 12/22/2009 |
| 7568467 | Crank position correction using cylinder pressure A method of correcting a crankshaft position may include determining first, second, and third crankshaft positions, determining first, second, and third cylinder pressures, determining first, second, and third cylinder volumes, determining the logarithm of the first... | 08/04/2009 |
| 7543565 | Optical system for detecting the concentration of combustion products Optical system for detecting the concentration of combustion products operating in situ and at high temperature based on measurement of the optical absorption of a gaseous mixture of combustion products through a photodetecting sensor based on gallium nitride (GaN),... | 06/09/2009 |
| 7536996 | Fuel injection controller and fuel injection control system A fuel injection controller (engine control ECU) controls a fuel injection mode of an engine having cylinder pressure sensors in all of four cylinders for measuring pressures in the cylinders. The controller measures a pressure (cylinder pressure) in the cylinder as... | 05/26/2009 |
| 7520265 | Fuel injection controller A fuel injection device calculates a variation correction value by incorporating in-cylinder pressure into injector individual data based on an injection rate of an injector measured outside a cylinder of an engine. The fuel injection device corrects a target inject... | 04/21/2009 |
| 7497201 | Control system and method for improving fuel economy A control system is provided for controlling the fueling system (402) of a combustion engine. The control system includes a sensing arrangement for measuring a plurality of engine and vehicle conditions (404, 406, 408, 410, 412) in real time. The contr... | 03/03/2009 |
| 7475673 | Apparatus and method for controlling maximum cylinder pressure in an internal combustion engine An Engine Control Module includes an electronic controller for controlling the position of an EGR valve, the timing of opening and closing of the engine combustion valves, and the timing of the individual cylinder fuel injectors of an engine. Each engine cylinder in... | 01/13/2009 |
| 7455047 | Control unit for an internal combustion engine An engine control unit includes pressure detector provided in a combustion chamber of the engine. A motoring pressure of the engine is estimated. A combustion starting time is detected when the difference between an internal pressure detected by the pressure detecto... | 11/25/2008 |
| 7440841 | Method of efficiently determining pressure-based combustion parameters for an IC engine Pressure-based combustion parameters of an IC engine are determined based on engine cylinder pressure measurements and crank angle dependent cylinder volume data, where the pressure in a given engine cylinder is periodically sampled at scheduled crank angles to prov... | 10/21/2008 |
| 7438049 | System for determining the start of combustion in an internal combustion engine The start of the combustion (CRK) of a mixture in a combustion chamber of an internal combustion engine is determined in accordance with a pressure (pc) that is measured in the combustion chamber. ... | 10/21/2008 |
