Matches 1 - 50 out of 63 1 2 >
Match Document Document Title
7624718 Engine control system, vehicle having the same, method for calculating combustion center of gravity, and method for controlling engine  
An engine control system enables engine control to cause ignition timing to approximate MBT without necessarily measuring torque and combustion pressure. The negative ion current in an engine...
7597093 Humidity based control system for an internal combustion engine  
A humidity based control system for an internal combustion engine includes a calculation module and a calibration module. The calculation module determines a humidity of air used in a combustion...
7472686 Control apparatus and method and engine control unit for internal combustion engine  
A control apparatus and method, and an engine control unit for an internal combustion engine are provided for restraining a torque step and sudden fluctuations in rotation when an air/fuel mixture...
7325528 Method of operating a single cylinder two-stroke engine  
The invention is directed to a method for operating a two-stroke engine having a cylinder in which a combustion chamber is formed and which includes devices for metering fuel and supplying...
7318411 Adaptive ignition dwell based on ionization feedback  
A system for determining a minimum ignition coil charge duration of an internal combustion engine to meet a desired level of combustion stability includes a sensor in communication with a...
7302932 Pre-ignition detection and mitigation  
A system and method for detecting and mitigating preignition for a multi-cylinder engine is provided. According to one aspect of the disclosure, a method is provided including identifying a...
7246597 Method and apparatus to operate a homogeneous charge compression-ignition engine  
A method and apparatus for controlling engine operation to compensate for effects of combustion chamber deposits (CCDs) on combustion in a controlled auto-ignition engine is presented. Control...
7121260 Ignition timing control apparatus for engine  
An ignition timing control apparatus for an engine includes a controller that sets an ignition timing considering a change of a temperature or a pressure in a combustion chamber at a time when an...
7021285 Control device for internal combustion engine  
A combustion variation value is detected, and a function that uses the detected combustion variation value is added to CVAR(i−1) to obtain CVAR(i); and using the resulting value, an exhaust gas...
6994073 Method and apparatus for detecting ionization signal in diesel and dual mode engines with plasma discharge system  
An apparatus and method to detect combustion conditions using ion signals for use in a feedback control of a diesel engine is presented. The apparatus is a spark plug type of sensor or a sensor...
6955157 System for engine retard limit control  
The present invention provides a system and method for controlling the retard limit of an engine having one or more cylinders in which combustion occurs. A sensor is employed to detect the...
6931836 Method for NOx reduction of externally-ignited, explosion, internal combustion engines  
In a method for reducing NO x in the exhaust gas of an externally ignited, explosion-type internal combustion engine that is operated at a lean fuel/air ratio of λ>1 and has a motor control...
6883497 Method of preventing preignition for an internal combustion engine  
Preignition in an engine is prevented by identifying engine conditions that relate to autoignition. If one or more of the engine conditions exceed a threshold, a controller retards the spark in the...
6845753 System and method for controlling ignition timing in an engine  
A system and method for controlling ignition timing of an engine is provided. The method includes determining a change in a combustion temperature rise within an engine based on a change in at...
6832472 Method and apparatus for controlling exhausted gas emissions during cold-start of an internal combustion engine  
An in-cylinder ion sensor provides a signal representative of the air/fuel ratio of the charge mixture as an engine starts. The signal representative of the air/fuel ratio is used as a feedback...
6763297 Displacement on demand spark knock detection  
False spark knock detection is minimized for a displacement on demand engine having activated and deactivated modes. The engine is operated in the activated mode. Knock detection is performed on...
6687591 Method of and apparatus for controlling torque-down upon gear changing  
Torque-down controlling conducted on an engine torque upon gear changing of an automatic transmission is implemented by converting a demand for a rate of torque-down against the engine torque into...
6684851 Method for determining a functioning parameter of an engine  
A process for determining an operating parameter of an internal combustion engine as a function of three control parameters (N, P, λ) of this motor, comprises: a) establishing a first map of the...
6670722 Boat ignition safety apparatus and method  
A boat ignition safety apparatus and method that prevents a gasoline engine of a boat from being started until the enclosed engine compartment has received proper ventilation for a predetermined...
6644274 Apparatus for detecting a condition of burning in an internal combustion engine  
An apparatus for detecting a condition of the burning in an internal combustion engine includes a burning-parameter controlling device for controlling a burning parameter operating on the burning...
6611145 Motorcycle having a system for combustion diagnostics  
A motorcycle including a two-cylinder engine. The engine includes a housing, first and second cylinders having first and second combustion chambers, respectively, and first and second pistons...
6584955 Method and device for phase recognition in a 4-stroke Otto engine with ion flow measurement  
A device and a method for detecting phase in four-stroke engines, in which an electronic control unit (ECU) detects a spark current as a measuring signal and determines whether ignition occurred...
6557526 Setting minimum spark advance for best torque in an internal combustion engine  
An internal combustion engine ( 1 ) causes an air-fuel mixture produced in a combustion chamber ( 23 ) to burn by means of ignition using a spark plug ( 24 ). A programmable controller ( 20 )...
6516772 Combustion state control system of internal combustion engine  
In a direct injection spark ignition engine which is operable in lean-burn operation modes including a pre-mixture combustion mode and a stratified combustion operation mode and a stoichiometric...
6367450 Fuel injection control system for outboard motor  
A control system for a multicylinder direct injection engine determines a control variable for each cylinder based on engine speed and engine load. The control variable can be altered depending...
6279538 Method for evaluating an ion current signal of a self-igniting internal combustion engine  
A method for evaluating an ion current signal of a self-igniting internal combustion engine, with the ignition shift being derived from the time shift of the local maximum in the curve of the ion...
6205774 Method for detecting flow-reducing changes in an exhaust-gas catalyst body  
A method for detecting flow-reducing changes in an exhaust-gas catalyst body is provided. The method includes measuring the ion-current signal from an ion-current probe in an internal combustion...
6186129 Ion sense biasing circuit  
A biasing circuit for an ion current measurement system draws power from a primary side of the ignition coil, and applies a positive polarity bias voltage to a low voltage side of a secondary...
6111413 Digital degree wheel for testing ignition timing  
A digital degree wheel is provided including an engine sensor mounted to at least one of a camshaft, distributor and crankshaft of a vehicle for generating an activation signal after the detection...
6105550 Method for operation of a four-stroke reciprocating internal combustion engine  
The invention concerns a method for operation of a four-stroke reciprocating internal combustion engine with a homogenous lean base mixture of air, fuel and retained exhaust, as well as with...
6032650 Method for closed-loop control of injection timing in combustion engines  
A method for closed-loop control of the positioning of a predetermined fuel amount in the working cycle of a combustion engine of the Otto-type, in which a predetermined amount of fuel is supplied...
6006726 Method and device for cylinder recognition in an internal combustion engine  
The present invention provides a device and a method for cylinder sensing in an internal combustion engine. The device according to the invention has a crankshaft sensor device for detecting a...
5992385 Device for determining the ignition advance angle of an internal combustion engine  
A device for determining the ignition-advance angle of an internal combustion engine, having a device for determining the ignition-advance angle from stored maps on the basis of the recorded...
5995879 Engine command selector and method of operating same  
An engine speed command selector and method of selecting an engine speed command signal from two command signals includes a selector switch having a local and a remote position, a local low...
5983862 Combustion control system for internal combustion engine  
A combustion control system includes a waveform shaping device for producing an ON signal from an ion current detected value, a down timing detecting device for detecting down timings of the ON...
5954024 Method for ignition control in combustion engines  
This invention relates to a method applied in combustion engines having two spark plugs in each combustion chamber for controlling ignition and ionization current measurements, one of the spark...
5941213 Control system for internal combustion engines  
A control system for an internal combustion engine includes a heat flux sensor arranged in the combustion chamber of the engine, for detecting the heat flux within the combustion chamber. An ECU...
5887568 Controller and control method for engine ignition timing  
A predetermined firing delay time B 1 is added to a value obtained by dividing a total gas weight Gcyl in a cylinder by an unburnt gas density basic value DENS and a laminar flow flame velocity...
5676113 Method for ignition timing control in combustion engines  
An improved method applied in combustion engines which use the ionization current in the combustion chamber in order to extract a parameter representative of the pressure in the cylinder, which...
5632247 Preignition detecting system  
A preignition detecting system capable of detecting a preigniting condition (PI) at an early time. Vibration of an internal combustion engine is detected by a vibration sensor 113, and is fetched...
5544635 Spark-ignition engine and a method of adaptive control on the ignition timing thereof  
A spark-ignition engine that has a cylinder and a crank connected to the piston in the cylinder and which converts the reciprocating motion of the piston to rotary motion via the crank,...
5425339 Internal combustion engine control device  
An internal combustion engine control device improving the combustion state without increasing the cost. Such a control device comprises: an angle detection section for generating a reference...
5287836 Control system for internal combustion engines  
A control system for an internal combustion engine determines ignition timing of the engine and generates an ignition command signal to generate high voltage for discharging a spark plug provided...
5263451 Method of controlling the operation of an i. c. engine  
In a method of controlling the point of ignition and/or air-fuel mixture of an i. c. engine, a signal circuit is used for emitting a signal indicating abnormal combustion or disturbance, and the...
5180984 Ion current sensing device for an internal combustion engine with spurious voltage preventing filter  
An ion current sensing device for an internal combustion engine is able to accurately sense an ion current generated between electrodes of a spark plug during combustion of a mixture even when the...
5150682 Method of monitoring emission of nitrogen oxides by an internal combustion engine  
In a method of monitoring the emission of nitrogen oxides NO x in the exhaust gas of an internal combustion engine, the engine to be monitored incorporates an accelerometer used as a sensor. The...
5115778 Apparatus for controlling an internal combustion engine  
An apparatus for controlling an internal combustion engine comprises a transducer which detects acoustic emissions generated by the operation of the engine, and produces an output signal. The...
5087882 Ionization current detector device for an internal combustion engine  
An ionization current detector for detecting the combustion states of an internal combustion engine is disclosed, which comprises: a high voltage generation circuit means, including a series...
5067462 Control device and method for multicylinder engine with a cylinder discrimination function  
A control device for a multi-cylinder engine comprises, in addition to a sensor 11 for detecting reference rotational positions of the crank shaft 1, an ionization current detector 41 for detecting...
5027774 Spark ignition engines  
There is described a motor vehicle having a spark ignition engine in an engine compartment and having automatic advance and retard device to advance or retard the angle of the firing of the spark...
Matches 1 - 50 out of 63 1 2 >