Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7367308 | Method for load transient control between lean and stoichiometric combustion modes of direct-injection engines with controlled auto-ignition combustion A method is provided for control of a direct-injection engine operated with controlled auto-ignition (HCCI) during load transient operations between modes of lean combustion low load (HCCI/Lean) and stiochiometric combustion medium load (HCCI/Stoich.). The method in... | 05/06/2008 |
| 7347179 | Method for operating an internal combustion engine In a method for operating an internal combustion engine in which the angular locations where the fuel/air mix combustions takes place can be controlled by an adjustment of the inlet and outlet valve timing, the timing of at least one of the intake and exhaust valve ... | 03/25/2008 |
| 7320309 | Method and device for controlling an internal combustion engine A method and device for controlling an internal combustion engine are provided. A first quantity characterizing the actually injected fuel amount and a second quantity characterizing the desired amount of fuel to be injected are determined on the basis of performanc... | 01/22/2008 |
| 7249589 | Hybrid vehicle and method for controlling hybrid vehicle In hybrid vehicle, when the shift position SP is set to the S position at which a driver is allowed to select any one of the shift positions SP1 to SP6, and it is determined that warm-up of a purifying device has not been completed, the target air-fuel... | 07/31/2007 |
| 7246595 | Diesel engine with differential cylinder group operation A method for controlling operation of a diesel engine having a plurality of cylinders, the engine including a first group of cylinders and a second group of cylinders, the method comprising of operating the first group of cylinders with a first intake and exhaust va... | 07/24/2007 |
| 7240480 | Dual Combustion Mode Engine An internal combustion engine is disclosed in which at least one cylinder is adapted to run in homogeneous-charge compression-ignition (HCCI) combustion mode and at least one cylinder is adapted to run in spark-ignition (SI) combustion mode with the HCCI cylinder ha... | 07/10/2007 |
| 7195001 | Fuel injector activity verification An engine system comprising of at least one fuel injector sensor coupled to at least one fuel injector of a first group of cylinders; at least one fuel injector sensor coupled to at least one fuel injector of a second group of cylinders; and a controller configured ... | 03/27/2007 |
| 7159385 | Apparatus for and method of detecting deterioration of catalyst in internal combustion engine An apparatus for detecting deterioration of a catalyst in an internal combustion engine initially biases an air/fuel ratio of an air-fuel mixture supplied to the internal combustion engine to a rich amount so that an amount of oxygen stored in the catalyst is substa... | 01/09/2007 |
| 7152573 | Method for operating an internal combustion engine In a method for operating an internal combustion engine with exhaust gas purification system, a rich-burn mode of the internal combustion engine with a rich exhaust gas composition or a lean-burn mode of the internal combustion engine with a lean exhaust gas composi... | 12/26/2006 |
| 7146799 | Computer controlled engine air-fuel ratio adjustment A microprocessor-based controller is provided for generated heat in at various locations in an exhaust system of an engine by changing the heat generation technique utilized. In one case, some cylinder air-fuel ratios are modulated between stoichiometry and rich, wh... | 12/12/2006 |
| 7137379 | Method for rich pulse control of diesel engines A combustion control method for the rich pulse control of Diesel engines with Lean NOX Trap systems includes identifying areas within a Diesel engine operating regime in which reduced recirculated exhaust gas and air with increased pre-mixed combustion is... | 11/21/2006 |
| 7124012 | Method and device for determining a driver torque setpoint for an internal combustion engine A method for determining the driver torque setpoint uses inputs from a drive pedal sensor, which senses the pedal position of a drive pedal. Depending on at least one switching parameter, different modes of calculation are activated, thus enabling the pedal position... | 10/17/2006 |
| 7111450 | Method for controlling the temperature of an emission control device A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 09/26/2006 |
| 7073322 | System for emission device control with cylinder deactivation Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ... | 07/11/2006 |
| 7069910 | Overall scheduling of a lean burn engine system A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 07/04/2006 |
| 7069718 | Engine system and method for injector cut-out operation with improved exhaust heating Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ... | 07/04/2006 |
| 7051699 | Split mode operation for fuel injection systems Methods for operating a fuel injection system of an engine. A first number of the fuel injectors is operated in a first mode during a first engine cycle. The first mode has a first set of fuel delivery characteristics, including at least one fuel shot per fuel injec... | 05/30/2006 |
| 7032572 | Method for controlling an engine to obtain rapid catalyst heating A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 04/25/2006 |
| 7017539 | Engine breathing in an engine with mechanical and electromechanical valves A system to control valves of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce hydrocarbon emissions of an internal combustion engine. Further, the system may contain both mechanical and electromechanical valves to reduce ... | 03/28/2006 |
| 7013862 | Method for operating an internal combustion engine The invention concerns a method for operating an internal combustion engine (1, 18) having a plurality of combustion chambers (4), in the case of which the combustion chambers (4) are charged with fuel and air or with a fuel/air mixture. In orde... | 03/21/2006 |
| 7003945 | Exhaust emission control device for internal combustion engine An exhaust emission control device for internal combustion engine comprising air-fuel ratio modulating means and air-fuel ratio modulation adjusting means. The air-fuel ratio modulation adjusting means adjusts a lean period to be longer or the degree of leaning to b... | 02/28/2006 |
| 6999864 | Apparatus and method for estimating residual gas amount of internal combustion engine, and apparatus and method for controlling intake air amount of internal combustion engine using estimated residual gas amount In an internal combustion engine provided with a variable valve mechanism that variably controls at least an operating characteristic (valve lift amount and the like) of an intake valve, a valve opening area AWm at a valve overlap time is calculated based on a valve... | 02/14/2006 |
| 6990951 | Torque control strategy for a diesel engine during lean-rich modulation using independent fuel injection maps A compression ignition engine (10) for a motor vehicle has a control system (20) for processing data, one or more combustion chambers (12), and fuel injectors (18) for injecting fuel into the chambers. The control system controls lean-ric... | 01/31/2006 |
| 6961651 | Common rail fuel injection device In fuel injection control, an injection pattern is determined by reading, from memory, an injection pattern appropriate to a current engine speed, desired torque, and a common rail pressure. Therefore, it is possible to form “an injection pattern for obtaining an ... | 11/01/2005 |
| 6931837 | Control strategy for lean-to-rich transitions in an internal combustion engine An engine (20) and an engine control strategy (FIGS. 2 and 3) for lean-to-rich transitions, such transitions being useful for various purposes, one of which is purging, or regenerating, a NOx adsorber (36) in the engine exhaust system. | 08/23/2005 |
| 6886329 | Exhaust emission control apparatus for internal combustion engine There is provided an exhaust emission control apparatus for an internal combustion engine, which comprises a cylinder suspend operation control section that provides control to suspend combustion of suspended cylinders selected from among a plurality of cylinders ac... | 05/03/2005 |
| 6874490 | Method and system of adaptive learning for engine exhaust gas sensors A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 04/05/2005 |
| 6868667 | Method for rapid catalyst heating A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 03/22/2005 |
| 6866023 | Lean burn engine control system A control system that enables optimum lean burn control only by operating one lever beyond a lean limit of a lean burn engine. A link mechanism opens a throttle valve at an angle according to the manipulated variable of a power lever while the throttle valve is loca... | 03/15/2005 |
| 6857421 | Method for operating a diesel engine, and diesel engine In a method for operating a diesel engine and a diesel engine, wherein engine emission control is provided by switching between a lean mode with superstoichiometric combustion air ratio λ>1 and a rich mode with substoichiometric combustion air ratio λ | 02/22/2005 |
| 6854264 | Computer controlled engine adjustment based on an exhaust flow A microprocessor-based controller is provided for generated heat in at various locations in an exhaust system of an engine by changing the heat generation technique utilized. In one case, some cylinder air-fuel ratios are modulated between stoichiometry and rich, wh... | 02/15/2005 |
| 6823657 | Regeneration of a NOx storage catalytic converter of an internal combustion engine A method for NOx and/or SOx regeneration of an NOx-storage catalytic converter arranged in an exhaust treatment system of an internal combustion engine having more than one cylinder. A mass flux of reducing agents are increased in th... | 11/30/2004 |
| 6782869 | Fuel delivery system and method A fuel delivery system includes a drop ejector for discretely ejecting drops of combustible liquid in a digital manner. A controller is configured to cause the drop ejector to provide a first air/fuel mixture to a combustion chamber for a first portion of a fuel int... | 08/31/2004 |
| 6766641 | Temperature control via computing device A microprocessor-based controller is provided for generated heat in at various locations in an exhaust system of an engine by changing the heat generation technique utilized. In one case, some cylinder air-fuel ratios are modulated between stoichiometry and rich, wh... | 07/27/2004 |
| 6758185 | Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 07/06/2004 |
| 6745747 | Method for air-fuel ratio control of a lean burn engine A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 06/08/2004 |
| 6735937 | Engine air and fuel control A control method for an internal combustion engine has multiple cylinder groups with at least one control device positioned between an intake manifold and a cylinder group. The engine operates the cylinder groups at different air/fuel ratio and uses the control devi... | 05/18/2004 |
| 6736120 | Method and system of adaptive learning for engine exhaust gas sensors A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pu... | 05/18/2004 |
| 6725825 | Method and system for controlling combustion mode in an internal combustion engine A method and system for controlling combustion mode in an internal combustion engine is disclosed. A method for controlling a multi-cylinder internal combustion engine includes operating a portion of the cylinders according to a first combustion mode and operating a... | 04/27/2004 |
| 6659083 | Method and device for operating an internal combustion engine A method and a device for operating an internal combustion engine including a plurality of cylinders, determine whether a torque of the internal combustion engine is above a torque threshold value. If the torque is less than the torque threshold value, al... | 12/09/2003 |
