Quotables
"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "
Ambose Bierce
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8065988 | Four-cycle engine An average pressure P12 in an exhaust port at an overlap period T12 during which a period T1 during which an exhaust valve of a first cylinder unit is in an EGR opening state overlaps with a period T2 during which an intake valve of the f... | 11/29/2011 |
| 7992541 | System and method for controlling auto-ignition A method controlling combustion modes of an engine with at least a first and second cylinder, the engine having a first actuator configured to control at least intake valves of the first and second cylinder and a second actuator configured to control at least exhaus... | 08/09/2011 |
| 7900598 | Electromechanical valve timing during a start A method is described for starting an internal combustion engine. During a run-up in engine speed of the engine starting, the method includes adjusting intake valve closing timing in response to barometric pressure to provide a desired air amount in the cylinder, wi... | 03/08/2011 |
| 7886714 | Exhaust gas reflux mechanism for multipurpose engine An exhaust gas reflux mechanism for a multipurpose engine includes an exhaust reflux cam formed as an integral part of an single cam of the engine and having a cam lobe profiled to open an exhaust valve while an intake valve stays open during the intake stroke of th... | 02/15/2011 |
| 7882821 | Spark ignition type internal combustion engine An engine provided with a variable timing mechanism (B) able to control a closing timing of an intake valve (7) and a variable compression ratio mechanism (A) able to change a mechanical compression ratio and controlling the closing timing of the intake valve... | 02/08/2011 |
| 7685994 | Variable valve timing apparatus and method of detecting valve phase thereof When the engine speed is high (determination of YES at S100), actual intake valve phase is calculated based on rotation phase difference between rotation angles of crankshaft and camshaft, detected by using a crank angle signal and a cam angle signal, and act... | 03/30/2010 |
| 7588013 | Engine system and method for controlling the same When a command to stop an engine is issued, it is determined whether a current state is a speed reduction enabled state where an intake valve phase is brought into a phase region, in which speed reduction ratio is high, by the time the engine is stopped if an engine... | 09/15/2009 |
| 7441524 | Valve timing control apparatus for internal combustion engine and control method thereof In a structure with a variable valve timing mechanism which varies an opening-and-closing timing of an intake valve and/or an exhaust valve due to a rotational phase of a camshaft with respect to a crankshaft of an internal combustion engine being varied, the rotati... | 10/28/2008 |
| 7424872 | Failure diagnostic apparatus for variable valve mechanism of internal combustion engine and failure diagnostic method for variable valve mechanism A failure diagnosis for a slide sensor of a variable valve mechanism is performed when a valve working angle is at a value in the initial state. The initial state is set to a valve characteristic state where the valve working angle is at the maximum value. The maxim... | 09/16/2008 |
| 7415966 | Engine An engine includes an in-cylinder injector injecting fuel into a cylinder, a port injector injecting fuel into an intake manifold, and a valve-opening-characteristic changing mechanism changing at least lift or opening duration of an intake valve. When the engine is... | 08/26/2008 |
| 7406931 | Control apparatus for internal combustion engine An internal combustion engine is provided with a plurality of valves, including a main driving valve and a driven valve, each of which can be lifted in response to an instruction from a control apparatus, and a lift sensor which detects a lift amount of the main dri... | 08/05/2008 |
| 7401579 | Valve timing control device An intake port of an internal combustion engine 10 is provided with a fuel injection valve 22. An intake adjustment mechanism 30 for varying the valve timing of an intake valve 24 and an exhaust adjustment mechanism 32 for varying ... | 07/22/2008 |
| 7398751 | Control device for engine valve and control system for engine A rotational phase difference of a camshaft relative to a crankshaft in a variable valve timing mechanism is controlled by an operation of an oil control valve. That is, in the oil control valve, there is outputted an operational signal which is defined by adding a ... | 07/15/2008 |
| 7392786 | Internal combustion engine shut-down for engine having adjustable valves A method for operating an engine in a vehicle, the engine having at least a cylinder, the method comprising generating engine braking torque to stop rotation of the engine in a desired range by opening and closing at least an electrically actuated valve of the cylin... | 07/01/2008 |
| 7387097 | INA-schaeffler KG, industriestrasse 1-3, 91074 herzogenaurach ANR 12 88 48 20 The invention relates to a device (101) for varying the control times of gas exchange valves of an internal combustion engine, with a hydraulic actuation device (102) and with a control valve (103). The device (101) according to the inven... | 06/17/2008 |
| 7386390 | Variable valve control apparatus for internal combustion engine and method thereof A requested volume flow ratio calculated based on a requested torque, an amount of two times a spit-back gas amount at the valve overlap time calculated based on a requested residual gas rate, and a spit-back gas amount of the time when an intake valve is closed are... | 06/10/2008 |
| 7331317 | Valve timing control system and control system for an internal combustion engine A valve timing control system for an internal combustion engine, which is capable of accurately and delicately controlling an amount of intake air, and thereby maintaining excellent combustion state and reduced exhaust emissions. The valve timing control system vari... | 02/19/2008 |
| 7317984 | Engine shut-down for engine having adjustable valve timing A method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle, comprising during conditions of an engine shut-down, maintaining at least one of the intake and exhaust valves in a closed position, and during conditi... | 01/08/2008 |
| 7316213 | Valve timing control device and control method for internal combustion engine A valve timing control device is provided, allowing downsizing of an electric motor that drives a variable mechanism of valve timing. An electronic control device drives a VVT drive electric motor with a crankshaft rotated towards reducing the cam torque qualified a... | 01/08/2008 |
| 7311078 | Engine control system using valve opening parameter In a system, a calculating unit calculates a control parameter required for control of an engine based on a valve opening parameter each time a calculating timing repeatedly appears, and stores the control parameter in a predetermined area of the system. A reflectin... | 12/25/2007 |
| 7311083 | Engine method A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention ach... | 12/25/2007 |
| 7305298 | Charge motion control valve fuzzy logic diagnostic A method of diagnosing a malfunction of a charge motion control valve coupled to an intake manifold of an internal combustion engine is provided. The method includes: commanding the valve to at least one of close and open; determining a pressure range using fuzzy lo... | 12/04/2007 |
| 7299786 | Vehicle control system A method is provided for controlling an engine having an intake manifold and an outlet control device coupled to the manifold for controlling flow exiting the manifold and entering at least one cylinder of the engine. The engine further includes an inlet control dev... | 11/27/2007 |
| 7292931 | Model-based inlet air dynamics state characterization An inlet air dynamics (IAD) characterization control system for an internal combustion engine includes a first module that estimates a future firing event manifold absolute pressure (MAP) and a second module that determines a MAP cycle difference based on the future... | 11/06/2007 |
| 7281503 | Control apparatus A control apparatus is provided for restraining fluctuations in the output due to disturbance and the like to achieve high stability and control accuracy for the output of a control object. The control apparatus calculates a virtual interference input applied to the... | 10/16/2007 |
| 7278383 | Internal combustion engine with variable compression ratio and valve characteristics When controlling the valve characteristics of an intake valve and changing the compression ratio, an upper variation limit compression ratio, which is the upper limit of the variation of compression ratio, is determined according to the actual valve characteristics ... | 10/09/2007 |
| 7270094 | Control apparatus for electric variable valve actuation mechanism An electric variable valve timing mechanism and a starter are actuated by electricity supplied from a common battery. During an engine starting process, the starter is actuated, and an electronic control unit controls the electric variable valve timing mechanism. Th... | 09/18/2007 |
| 7258090 | Intake air amount control apparatus for internal combustion engine An intake air amount control apparatus is mounted on a vehicle having an automatic transmission 30 that switches the shifting pattern for the gear ratio between two modes. The intake air amount control apparatus controls the intake air amount by cooperation o... | 08/21/2007 |
| 7246673 | Hybrid powertrain with engine valve deactivation A vehicle powertrain includes an engine and an electric motor in parallel hybrid combination. The engine includes a plurality of cylinders and a plurality of selectively deactivatable cylinder intake and exhaust valves so that every cylinder in the engine is charact... | 07/24/2007 |
| 7213569 | Valve characteristic estimation device and controller for internal combustion engine A valve characteristic estimation device applied to an internal combustion engine provided with a valve characteristic adjustment mechanism for varying a valve characteristic including at least one of a valve open period and a lift amount of an intake valve. The est... | 05/08/2007 |
| 7213550 | Internal combustion engine and valve timing control method An internal combustion engine includes: a variable valve timing mechanism for changing a valve timing of at least one of an intake valve and an exhaust valve; a pressure for detecting an intake pressure and an exhaust pressure of the internal combustion engine that ... | 05/08/2007 |
| 7203593 | Air starter and electronic control therefor An in-head compressed air start-up system for an internal combustion engine comprises an absolute angular position detector for the crankshaft outputting an electrical signal indicative of the angular position, a computer for storing a table of the firing order of t... | 04/10/2007 |
| 7191050 | Variable valve control apparatus for internal combustion engine and method thereof Variable valve control method and apparatus for an internal combustion engine provided with a variable valve mechanism that varies an operating characteristic of an intake valve, for controlling a gas amount passing back through the intake valve by variably controll... | 03/13/2007 |
| 7178494 | Variable valve timing controller for internal combustion engine An ECU calculates an engine speed for calculating a camshaft phase based on a time period Tθ in which a crankshaft rotates a sampling angle θ. The camshaft phase is derived from a time difference between output timing of a cam angle signal and output timing of a c... | 02/20/2007 |
| 7165520 | Reducing engine emission on an engine with electromechanical valves A system and method to control engine valve timing to improve the start of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce hydrocarbon emissions during the start of an internal combustion engine. ... | 01/23/2007 |
| 7159545 | Valve timing control apparatus for internal combustion engine and control method thereof A valve timing control apparatus for an internal combustion engine which comprises a variable valve timing mechanism which varies an opening-and-closing timing of an intake valve and/or an exhaust valve of an engine, and in which the opening-and-closing timing at a ... | 01/09/2007 |
| 7134409 | Deposit removal for internal combustion engine An internal combustion engine 100 comprises a variable valve mechanism 424 and a deposit removal executing section for removing deposits. The deposit removal executing section controls the variable valve mechanism 424 to increase the flow speed ... | 11/14/2006 |
| 7121238 | Intake valve control system and method for internal combustion engine An intake valve control system for an internal combustion engine includes a first valve control mechanism for varying an actual operation angle of an intake valve, a second valve control mechanism for varying an actual maximum lift phase of the intake valve and a co... | 10/17/2006 |
| 7082911 | Valve-driving system and method for internal combustion engine, and power output apparatus A valve-driving system for an internal combustion engine is provided with: an electric motor for generating a rotational driving force to drive a valve for intake or exhaust mounted on a cylinder in the internal combustion engine so as to open and close the valve in... | 08/01/2006 |
| 7063055 | Engine valve actuation system and method An engine valve actuation system is provided. The system includes an engine valve moveable between a closed position and an open position. A spring is operatively connected to the engine valve to bias the engine valve towards the closed position. An actuator is oper... | 06/20/2006 |
