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Class 123/322 - Electrical means adapted to alter valve timing


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter having means to change the amount of time
No. of patents: 186
Last issue date: 01/10/2012


1          
NumberTitleIssue Date
8091529Regulating method for a volume control
In a regulating method for controlling an electrical actuator, especially a valve for regulating a volume flow in an injection system for an internal combustion engine, a nominal value is set for an actuating variable of the actuator; the actuator is controlled by a...
01/10/2012
7530343Engine expansion braking with adjustable valve timing
A system and method for controlling operation of cylinder with at least an intake and exhaust valve and a piston are described. In one aspect, the method comprises maintaining at least one of the intake and exhaust valves in a closed position during a period. Furthe...
05/12/2009
7412963Internal combustion engine including a gas pressure container assigned to the cylinders, and method for operating the engine
In an internal combustion engine having cylinders connected by means of controllable brake valves to a common gas pressure container which is in communication, by way of an outflow line with an outflow valve, with the exhaust strand of the internal combustion engine...
08/19/2008
7383820Electromechanical valve timing during a start
A system and method to control engine valve timing to during 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. The method controls intake...
06/10/2008
7364481Jet-propelled watercraft
A jet-propelled watercraft capable of maintaining a propulsion force required for a turn made at the same time as closing of a throttle valve. The jet-propelled watercraft has an auxiliary intake valve and an ECU. The auxiliary intake valve in an intake pipe opens/c...
04/29/2008
7328690Apparatus and method for accurate detection of locomotive fuel injection pump solenoid closure
The invention relates to a system and method for detecting a closing of a solenoid. The system includes a capacitive charge circuit electrically coupled to the solenoid. The capacitive charge circuit conditions the current flow through the solenoid to increase the c...
02/12/2008
7317984Engine 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
7311083Engine 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
7308872Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation
A valvetrain system mechanization for an internal combustion engine using compression ignition, including homogeneous charge compression ignition, having two intake and one or more exhaust valves per cylinder. The valves are operated by dual overhead camshafts havin...
12/18/2007
7308886Method for operating an internal combustion engine during engine braking
The invention relates to a method for operating an internal combustion engine of a motor vehicle in engine braking mode, in which the internal combustion engine is operated with at least one unfired cylinder, and the internal combustion engine has variably controlla...
12/18/2007
7299786Vehicle 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
7299784Internal combustion engine
An internal combustion engine is provided in which fuel pressure is changed and fuel injection is controlled in accordance with engine operating conditions. The internal combustion engine comprises a cylinder, a direct injection injector, a detection unit, and a con...
11/27/2007
7290527Vehicle 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...
11/06/2007
7284533Method of operating an engine brake
Methods and apparatus for actuating an engine valve provided between an engine cylinder and an exhaust manifold to provide compression-release engine braking in combination with exhaust gas restriction and brake gas recirculation are disclosed. In a first embodiment...
10/23/2007
7263959Control apparatus of internal combustion engine
At a time of stopping an internal combustion engine, inertia energy of the engine is kept constant, for example, by controlling a number of engine revolution constant, while controlling combustion of the engine. By utilizing the controlled inertia energy, the engine...
09/04/2007
7260467Cylinder deactivation method to minimize drivetrain torsional disturbances
A system and method are described for reducing engine vibration during cylinder deactivation in selected operating conditions. The method utilizes open valve deactivation to better match the cylinder pressure of deactivated cylinders to combusting cylinders. This mo...
08/21/2007
7255075Engine valve actuation system
An engine valve actuation system is provided. An intake valve is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is connected to move the intake valve between the first position and the seco...
08/14/2007
7243633HEV internal combustion engine pre-positioning
A method for controlling an engine that operates with negative valve overlap between an intake valve and an exhaust valve during at least some conditions, the method comprising of providing an engine stop position with at least one cylinder near top dead center of p...
07/17/2007
7237530Control apparatus of internal combustion engine
A control apparatus for an internal combustion engine provided with a fuel vapor treatment system according to the invention includes a controller that discharges fuel vapor into an intake passageway by using the intake negative pressure, and which adjusts the amoun...
07/03/2007
7234442Controlled starting and braking of an internal combustion engine
An internal combustion engine may be provided with independently controllable valves, fuel injectors and ignition elements that may be used to start the engine without a separate auxiliary device such as an electric starter motor. The engine may fire the cylinders u...
06/26/2007
7228828Control system and method for a valve actuator
A method of controlling an engine having a valve actuation system is provided. The engine is started. A first parameter indicative of a first temperature of the engine is sensed. A second parameter indicative of a second temperature of the engine is sensed. The valv...
06/12/2007
7225610Process for operating a combustion engine
A method of operating an internal-combustion engine (1) which has at least one cylinder (10,20,30,40,50,60) with a combustion chamber (17,27,37,47,57,67) assigned to it, in the cylinder (10,20,30,40,50,60), a piston (11,21,31,41,51,61
06/05/2007
7209821Apparatus for controlling run of a car, and car using the apparatus
In a system of accelerating a car using a brake operating mechanism, the driver is required to be ready to step on the brake operating mechanism so as to rapidly decelerate the car in order to avoid danger, if necessary, while he is releasing his foot from the brake...
04/24/2007
7201143Intake amount control apparatus of internal combustion engine
An intake amount control apparatus of an internal combustion engine in accordance with the invention includes a control portion that controls an opening amount of a throttle valve provided in an intake passageway of the internal combustion engine and operation of a ...
04/10/2007
7201140Increased engine braking with adjustable valve timing
A system and method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle are described. In one aspect, the method comprises maintaining at least one of the intake and exhaust valves in a closed position during a pe...
04/10/2007
7188022Controller
A controller which is capable of improving the resolution and accuracy of control even when controlling a plant including a control region in which nonlinearities are temporarily very strongly exhibited and a control region in which the nonlinearities are hardly exh...
03/06/2007
7178508Fuel injection nozzle of engine
A fuel injection nozzle of an engine used to inject fuel oil into the combustion chamber of each cylinder of a diesel engine and fixedly attached to a cylinder head (1) by a fuel injection nozzle retainer (15) supported by a valve arm shaft (11)...
02/20/2007
7174881Actuation valve for controlling fuel injector and compression release valve, and engine using same
The present invention relates to engines having multiple hydraulic devices. For instance a multi-cylinder diesel engine might include both an a fuel injector and an engine compression release brake. Traditionally, each of these hydraulic devices has been controlled ...
02/13/2007
7177756Method, control appliance, and computer program for detecting defective pressure sensors in an internal combustion engine
A method, a control unit, and a computer program for detecting a defective intake-manifold pressure sensor and/or a defective ambient-pressure sensor in an internal combustion engine having a variable valve timing are provided. The desired detection is carried out e...
02/13/2007
7165520Reducing 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
7162996Engine braking methods and apparatus
Methods and apparatus for providing bleeder-type and compression-release engine braking in an internal combustion engine are disclosed. For bleeder-type engine braking, the exhaust valve is maintained at a small and relatively constant lift throughout all or much of...
01/16/2007
7152576Compact lost motion system for variable value actuation
Lost motion systems and methods for providing engine valves with variable valve actuation for engine valve events are disclosed. The system may include a master piston hydraulically linked to a slave piston, and a dedicated cam operatively connected to the master pi...
12/26/2006
7138904Biometric system and method for vehicle security and operation
Disclosed is a keyless system for operating and accessing a vehicle such as an automobile, truck, minivan, bus, airplane, train, boat, etc. Preferably, the user's fingerprint is his or her “right of passage” into the vehicle. The system includes fingerprint trig...
11/21/2006
7131933Vehicle control apparatus having means for changing inertia torque of engine during shifting action or during switching of operating state of lock-up clutch
A control apparatus for an automotive vehicle having an automatic transmission and an engine capable of controlling a resistance to its rotary motion. The control apparatus is adapted to change an output torque of the engine temporarily during a shifting action of t...
11/07/2006
7098652Analytical circuit for an inductive sensor
An analytical circuit for an inductive electromagnetic sensor with external excitation (1) generates an output signal which is transformed to give an output signal (out), by means of transformation to a reference voltage (Vref) in an inverting low-pass filter...
08/29/2006
7093571Internal combustion engine
In an internal combustion engine having an electromagnetically driven valve for driving one of an intake valve and an exhasut valve, at least a lubricating oil passage to a head section including a lubricating oil passage to the electromagnetically driven valve is p...
08/22/2006
7082912System and method for controlling engine valve lift and valve opening percentage
System and method for controlling internal combustion engine valve lift and valve opening by an arrangement of cams with overlapping cams track that synchronize and vary the rise, fall, and dwell of the inlet and exhaust valves of an IC engine. ...
08/01/2006
7069887Engine valve actuation system
An engine valve actuation system is provided. An intake valve is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is connected to move the intake valve between the first position and the seco...
07/04/2006
7069888System and method for valve actuation
The present invention is directed to a system and method for actuating an engine valve. In one embodiment, the present invention is a system for providing exhaust gas recirculation (EGR) in an engine having at least one engine valve, the system comprising: means for...
07/04/2006
7066128Engine controller for starting and stopping engine
During a shut-down period of an engine based on an idle stop control, a computer estimates a power stroke cylinder and a compression stroke cylinder when the engine is stopped. A fuel is injected into the power stroke cylinder and the compression stroke cylinder in ...
06/27/2006
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