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Class 123/493 - Deceleration condition responsive


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein said circuit responds to an engine "deceleration" condition,
No. of patents: 331
Last issue date: 10/28/2008


1                  
NumberTitleIssue Date
7441541Internal combustion engine stop and start method
Fuel injection is controlled to cause one of multiple cylinders to receive fuel injection and to stop in a predetermined range over an intake stroke to a compression stroke in an operation stop of the internal combustion engine. At the time of stopping the engine, f...
10/28/2008
7441547Method of feeding fuel to an engine, fuel feed amount control system of an engine, and motorcycle comprising fuel feed amount control system
A method of feeding fuel to an engine, comprising the steps of determining whether or not the engine is decelerating based on a time-lapse change rate of an engine speed of the engine, and reducing an amount of the fuel to be fed to air taken into the engine from ou...
10/28/2008
7395808Control system of internal combustion engine
There is provided a control system for controlling an internal combustion engine with an exhaust system provided with a catalyst, comprising a fuel cut means for stopping the supply of fuel to the internal combustion engine when the vehicle in which the internal com...
07/08/2008
7383813Method and device for controlling the transition between normal operation and overrun fuel cut-off operation of an Otto engine operated with direct fuel injection
The problem during overrun fuel cut-off operations, i.e. cut-off of fuel injection during trailing throttle conditions of the vehicle, is that the transition entails an undue torque jump, resulting in the smooth operation of the engine and the driving comfort of the...
06/10/2008
7377256Method for operating a drive unit
A method for operating a drive unit, in which, given the use of a vehicle-speed controller, the actual speed is prevented from exceeding the setpoint speed too significantly. In the method, a setpoint value for an output variable of the drive unit is predetermined. ...
05/27/2008
7331332Method for operating an internal combustion engine
An internal combustion engine includes multiple combustion chambers. The supply of fuel into at least one subset of the combustion chambers can temporarily be interrupted. It is provided that the fuel be injected into the combustion chambers directly and during a sw...
02/19/2008
7328686System and method to control cylinder activation and deactivation
Engine cylinder reactivation from a fuel-cut state is controlled based on a calculated future engine speed and a minimum allowable engine speed. The future engine speed is calculated based on the current rate of change of engine speed and a duration required to reac...
02/12/2008
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
7296561Engine control apparatus
In order to prevent the generation of surge noise or other abnormal phenomena during deceleration of a vehicle, the present engine control apparatus comprises a turbo-supercharger driven by exhaust energy of the engine, at least one of an NOx trap catalyz...
11/20/2007
7290387Control device of internal combustion engine
A control device of an internal combustion engine suppressing catalyst deterioration by prohibiting fuel cuts, wherein the generation of odor from the catalyst after deceleration is suppressed. The control device is provided with a fuel cut executing device for stop...
11/06/2007
7285073Engine fuel supply control device
An engine fuel supply control device is configured to stop supplying fuel to an engine when specific fuel cut-off condition has been met. The timing of the fuel cut-off is delayed depending on an operating state of the vehicle. Preferably, the engine fuel supply con...
10/23/2007
7263977Method and device for operating an internal combustion engine in overrun conditions
A method is provided for operating an internal combustion engine 10 in overrun condition, which method includes the steps of: release of a monitoring of a control signal for a power actuator of the internal combustion engine when predetermined release conditi...
09/04/2007
7235987Sensor device using pair of resistive sensor controlled beat oscillators
A sensor device is disclosed that includes a sensor, in which a resistance value is changed in accordance with a change in an environment of the sensor. The sensor device also includes a beat oscillator having plural oscillators of different oscillating frequencies....
06/26/2007
7182066Control apparatus for internal combustion engine and method of calculating intake air quantity for same
An internal combustion engine (1) generates power by burning a mixture of fuel and air in each combustion chamber (3). The internal combustion engine (1) is provided with an in-cylinder pressure sensor (15) disposed in the combustion cham...
02/27/2007
7171944High-pressure fuel pump control device for internal combustion
A high-pressure fuel pump control device for an internal combustion engine includes a feedback quantity calculating unit (602) for calculating a fuel discharge feedback quantity (QFB) of a high-pressure pump according to a proportional integral operation base...
02/06/2007
7168414Marine vapor separator with bypass line
In a fuel supply system, liquid fuel is supplied to a marine engine from a fuel tank (10). The fuel first passes through a water filter (14), a lift pump (18) and is temporarily deposited in a vapor separator (20) where vapors given off f...
01/30/2007
7140348Fuel injection control system
A fuel injection valve control to correctingly increase the fuel amount appropriately for realizing a favorable acceleration performance at the time of accelerating after a throttle full closure period is finished. ...
11/28/2006
7134984Fuel cut control system for internal combustion engine
A fuel cut control system for an internal combustion engine is arranged to generate a fuel cut command when a predetermined engine operating condition is satisfied, to start a fuel cut of stopping a fuel supply to engine when a delay time elapses from a moment at wh...
11/14/2006
7118435Outboard motor
A system for replenishing a lubricant pan with the lubricant comprises a lubricant tank provided separately from the lubricant pan. A lubricant replenishing pump is provided in the lubricant tank for replenishing the lubricant pan with the lubricant. A lubricant lev...
10/10/2006
7117853Fuel injection controller of engine
An electronic control unit compulsorily stops supply of a fuel injection quantity, which is calculated based on various parameters including a throttle opening degree, performed by an injector in accordance with a crank angle signal if a series of operations, of rap...
10/10/2006
7093587Method and device for controlling the drive unit of a vehicle
A method and a device for controlling the drive unit of a vehicle make possible an effective kinesthetic signaling of an event. Based on a detection of the event, an output variable of the drive unit is changed in a stepwise manner, as a function of whether the vehi...
08/22/2006
7089738System for controlling turbocharger compressor surge
A system for controlling turbocharger compressor surge includes a turbocharger compressor fluidly coupled to an engine intake manifold, an exhaust gas recirculation (EGR) valve disposed in-line with an EGR conduit fluidly coupled between the engine intake and exhaus...
08/15/2006
7089103Control system for cylinder cutoff internal combustion engine
In a system for controlling an internal combustion engine having a plurality of cylinders and connected to the automatic transmission and mounted on a vehicle and the operation of the engine is switched between full-cylinder operation during which all of the cylinde...
08/08/2006
7086387Control apparatus of internal combustion engine
The invention provides a control apparatus of a cylinder injection of fuel type internal combustion engine executing a dilute combustion, which can satisfy a requirement of rapidly changing an engine torque while restricting a deterioration of a driving property and...
08/08/2006
7051516Method for controlling a working mode of an internal combustion engine
The invention relates to a method for controlling a temperature of a catalyst system (14, 16) located in an exhaust duct (12) of an internal combustion engine (10) in a motor vehicle. Said system comprises at least one primary catalyst (16
05/30/2006
7051704Intake air control apparatus and method for internal combustion engine
An intake air control apparatus method and apparatus for an internal combustion engine in which the engine includes a variably operated valve mechanism for making at least one of an operating angle of an intake valve and a valve lift thereof variable. A determinatio...
05/30/2006
7010413Cylinder mass air flow prediction model
A vehicle system includes a throttle position sensor that generates a current throttle position signal (TPS), a MAF sensor that generates a current actual MAF signal, and a manifold absolute pressure (MAP) sensor that generates a current actual MAP signal. A control...
03/07/2006
7010414Method for reducing computational time for calculating a noise-filtered average approximation of throttle position
A method for reducing computational time for calculating a noise-filtered average approximation of a throttle position in an automotive environment. During controller initialization, an initial average value for N samples is established by conventional averaging. Th...
03/07/2006
7004149Internal combustion engine intake pressure detecting device
An internal combustion engine (18) has an intake pipe (34) which extends from an internal combustion engine main body (19) and an intake passageway (33) formed in the interior thereof communicates with an intake passageway (27) for...
02/28/2006
6978597Flame detecting apparatus for gas turbine
A gas turbine apparatus is provided wherein a turbine is driven or rotated by burning a mixture of a fuel and compressed air and supplying a combustion gas generated by the combustion. A flameout determination unit is provided in the apparatus which is adapted to ca...
12/27/2005
6969341Engine deceleration control system
An engine deceleration control system for an internal combustion engine of a vehicle is arranged to prohibit correcting an air quantity supplied to the engine when an elapsed time period from a moment of turning off of an accelerator of the engine is within a first ...
11/29/2005
6959241Engine control device
An engine control device capable of improving engine efficiency by operating the engine in an area where fuel consumption is small (good) while allowing high responsivity of the engine to be maintained. The object can be achieved by operating to match at a point on ...
10/25/2005
6934619Engine transient detection and control strategy
Engine speed data (N) and engine fueling data (MFDES) are processed to develop rate-of change data values for both engine fueling (FUELING_DIFFERENCE_FILTERED) and engine speed (ENGINE SPEED_DIFFERENCE_FILTERED). The latter are processed according to a look-up table...
08/23/2005
6883493Method and device for operating the drive motor of a vehicle
A method and an arrangement for operating a drive unit of a vehicle are suggested. Starting from a driver command torque which is converted into a resulting desired torque while considering additional torques, a correction of the resulting desired torque is undertak...
04/26/2005
6857421Method 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
6854444Method and device for controlling a drive unit
A method and an arrangement for controlling a drive unit are suggested wherein a maximum permissible value of an output quantity is determined. This maximum permissible value is compared to the actual value and, when the permissible value is exceeded by the actual v...
02/15/2005
6845761System and method for combustion engines
The invention relates to a method for improving combustion in a combustion chamber of a combustion engine. The method comprises the first step of receiving a measured air-to-fuel ratio value. Further, the method comprises the step of receiving at least one estimated...
01/25/2005
6843230Control apparatus and control method of internal combustion engine
In an internal combustion engine provided with a variable valve mechanism that varies a valve operating characteristic (valve lift amount and valve operating angle) of an intake valve, the valve operating characteristic of the intake valve is detected and an intake ...
01/18/2005
6830038Fuel cut control method
To provide a fuel cutoff control method for an engine including a secondary air introducing system, capable of preventing afterburning in an exhaust pipe at the time of fuel being cut off in a decelerating state of the engine. A fuel cutoff control method dur...
12/14/2004
6785603Operation stop control method of internal combustion engine for vehicle
When a control determination is made that an operation of an internal combustion engine should be stopped, a fuel adherence reduction operation for reducing the amount of fuel adhered to a wall surface extending from an intake port to a combustion chamber is execute...
08/31/2004
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