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Match Document Document Title
7610897 Valvetrain control systems for internal combustion engines with time and event based control  
A valve control system includes a vehicle control module that generates a lift mode command signal to transition one of intake and exhaust valves between N open lift modes. A time module generates...
7591244 Control method for the intake and exhaust valves of an engine and internal combustion engine comprising such valves  
This method is for controlling the intake and exhaust valves of the cylinders of an internal combustion engine which is capable of operating either in four-stroke positive mode or in two-stroke...
7581527 Internal combustion engine provided with a valve opening variation system and vehicle equipped with such engine  
The present invention is relative to an internal combustion engine equipped with a plurality of combustion chambers such to allow the variation of the opening of the valves of said chambers by...
7571709 Method for stopping and starting an internal combustion engine having a variable event valvetrain  
A method for controlling stopping and starting of an engine having a variable event valvetrain is described. According to the method engine valves may be used to reduce engine evaporative emissions...
7568465 Engine retarder having multiple modes  
The present disclosure is directed to a method of retarding an engine. The method includes selectively retarding the engine in a first mode configured to produce a first level of retarding at a...
7565896 Method for variable valve actuation to provide positive power and engine braking  
A control method for transitioning from positive power to engine braking (and vice-versa) is disclosed. This transition may be made using variable valve actuation and two-stroke braking. The...
7556027 Internal-combustion engine control method and engine using same  
The present invention relates to a method of controlling an internal-combustion engine comprising at least one cylinder ( 10 ) with at least one burnt gas exhaust means ( 12 ) including an exhaust...
7530337 High overlap camshaft for improved engine efficiency  
A vehicle may include a drive axle, an engine assembly, a coupling device, and an engine load management system. The engine assembly may include a valvetrain including a fixed-lobe camshaft and...
7520262 Integrated type engine brake for diesel engine  
An integrated type engine brake for a diesel engine includes: a cam cap; a valve integral with the cam cap, the valve including an oil inlet and an oil outlet; and a rocker shaft with a brake oil...
7500466 Variable valve actuation and engine braking  
Systems and methods of actuating two engine valves associated with a common engine cylinder using one or more lost motion systems and one or more control valves are disclosed. The control valves...
7493207 Control apparatus, control method, and engine control unit  
A control apparatus which is capable of compensating for a control error properly and quickly even under a condition where the control error is temporarily increased e.g. by degradation of...
7487751 Method and device for operating an internal combustion engine  
A method and a device for operating an internal combustion engine improve the response of the internal combustion engine and increase its torque. An exhaust valve of the combustion chamber of the...
7489999 Control apparatus and control method for variable valve apparatus  
In an engine provided with a valve lift amount variable mechanism and a center phase variable mechanism for an intake valve, a region between a region where a flow rate of an intake air passing...
7484497 Control device for an internal combustion engine  
Provided is a control device for an internal combustion engine, including a crank angle sensor, a cam angle sensor, a real phase angle detector for detecting a real phase angle of a cam shaft based...
7469676 Method and device for determining a phase of an internal combustion engine  
The invention concerns a method and a device for determining an internal combustion engine phase. Said device comprises an intake zone, an exhaust zone, at least one camshaft which acts on the gas...
7461619 Valve apparatus for an internal combustion engine  
A method includes operating a first cylinder defined by an internal combustion engine in a combustion mode and operating selectively a second cylinder defined by the internal combustion engine in...
7438046 Failure detection apparatus for variable valve timing and lift control system of internal combustion engine  
A failure detection apparatus for preventing erroneous detection due to a degradation of a sensor and thereby accurately performing failure detection of a variable valve timing and lift control...
7434398 Method for braking with an internal combustion engine having a variable turbo unit  
Method for controlling the braking effect during engine braking in an internal combustion engine ( 10 ) having an exhaust turbocharger unit ( 16 ) with adjustable guide blades for controlling the...
7409943 Engine braking method for a supercharged internal combustion engine  
In an engine braking method for a supercharged internal combustion engine, wherein combustion air, which is under boost pressure and is supplied to the cylinders under the control of engine inlet...
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...
7324889 Intake-air quantity control system of engine  
In an intake-air quantity control system of an engine employing a variable valve operating device capable of controlling a cylinder intake-air quantity by variable control of an operating...
7314037 Engine brake system of a multicylinder internal combustion engine comprising a cooled intermediate pipe for exchanging gas between cylinders during engine braking  
The invention relates to a multicylinder internal combustion engine ( 1 ) comprising intake valves and exhaust valves that are provided with at least one additional valve ( 10 ) for each cylinder...
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...
7308886 Method 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...
7293555 Controller and control method for internal combustion engine  
A controller approximates an output characteristic of an air flow meter using at least one parameter, and approximates a characteristic of a fuel injection characteristic of an injector using at...
7293405 Multi-cylinder internal combustion engine and method for operation thereof  
In a multi-cylinder internal combustion engine and a method for operating a multi-cylinder internal combustion engine, cylinders are assigned an exhaust line and, in each case, a gas inlet valve...
7284533 Method 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...
7162996 Engine 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...
7156072 Computer controlled engine valve operation  
An electronic valve actuation system and control method is described. The valve timing is changed between early and late intake valve closing depending on engine operating conditions. Further,...
7152576 Compact 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...
7121240 Valve controller  
The valve controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit drives a motor based on a control signal generated by the control...
RE39258 Multi-cycle, engine braking with positive power valve actuation control system and process for using the same  
An apparatus and method for effectuating multi-cycle engine braking is disclosed. The present invention controls the operation of the engine valves to permit more than one compression release event...
7066141 Linear control valve for controlling a fuel injector and engine compression release brake actuator and engine using same  
A linear control valve is disclosed regulating the flow of fluid to hydraulically activated devices, preferably a fuel injector and an engine compression release brake. The valve includes a valve...
7028664 Motorbrake for an internal combustion engine  
In a motor brake for an internal combustion engine having an exhaust valve and an operating mechanism for opening and closing the exhaust valve, the operating mechanism includes a support structure...
7013867 Engine air brake device for a 4-stroke reciprocating piston internal combustion engine  
An engine air brake device for a 4-stroke reciprocating-piston internal combustion engine is provided and has at least one intake valve and two exhaust valves per cylinder. The exhaust train...
6994067 Valve timing mechanism for a rotary valve internal combustion engine  
A rotary valve internal combustion engine comprising a crankshaft, a throttle ( 23 ), a throttle actuator, a cylinder head ( 7 ), a combustion chamber ( 8 ), and at least one rotary valve ( 1 )....
6993426 Method of engine overspeed protection by inhibiting operator throttle input  
An engine control practices a method for engine control including detecting an overspeed indication selectively settable in the vehicle, responding to the threshold speed operation, and inhibiting...
6983725 Exhaust valve mechanism in internal combustion engines  
Valve mechanism in an internal combustion engine, includes a valve play-take up mechanism in the form of a piston in a cylinder chamber at one end of an exhaust rocker arm, and a hydraulic circuit...
6971366 Integral lash adjustor for hydraulic compression engine brake  
Engine compression release brakes include some degree of lash between the brake actuation portion and the engine exhaust valve portion. The disclosed apparatus and method provides an integral lash...
6968828 Post-retard fuel limiting strategy for an engine  
An engine ( 10 ) having a control system ( 24 ) that executes a control strategy ( 44 ) for limiting engine fueling upon deactivation of an engine retarder. Upon deactivation of the retarder, the...
6953021 Controller of hybrid vehicle  
A control device for a hybrid vehicle having an engine and a motor as driving sources for the vehicle, and when decelerating, the control device stops the fuel supply to the engine and generates...
6951198 Increased engine braking with adjustable intake 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...
6945224 Intake air amount control apparatus for vehicle engine and method thereof  
In a control apparatus for controlling an intake air amount of an engine by variably controlling a lift amount of an intake valve, when a variable valve lift mechanism is failed, the control is...
6935305 Method and apparatus for reducing wear of valve actuators  
A control system for an internal combustion engine includes a plurality of valve actuators, each of which is operatively connected to at least one of a plurality of combustion chambers of the...
6925976 Modal variable valve actuation system for internal combustion engine and method for operating the same  
A variable valve actuation system for providing discrete exhaust and intake valve lift profiles for various operating modes of an internal combustion engine. The variable valve actuation system...
6907860 Control apparatus and control method for vehicle-mounted internal combustion engine  
A vehicle-mounted internal combustion engine has a variable lift mechanism for varying the valve lift of an intake valve. During deceleration of the vehicle, an ECU performs fuel cutoff control for...
6904892 Compression release brake system  
A compression release brake system 10 includes a hydraulic apparatus 12 for controllably opening at least one exhaust valve 14 of at least one cylinder 16 of an engine in response to motion...
6883318 Method of controlling an internal combustion engine  
A method of controlling an internal combustion engine when the engine is operating in an engine braking mode is provided. The engine operates in the engine braking mode and an exhaust valve for the...
6868824 System and method of gas recirculation in an internal combustion engine  
A gas recirculation system is disclosed for improving engine braking in an internal combustion engine having an intake valve, an exhaust valve, and a cylinder. The system includes an exhaust...
6866017 Method and system for engine braking in an internal combustion engine using a stroke limited high pressure engine brake  
The present invention is directed to an engine braking assembly and method for producing a bleeder braking event in an engine having at least one engine valve, at least one engine cylinder, and...
Matches 1 - 50 out of 233 1 2 3 4 5 >