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Class 123/406.52 - Throttle position responsive


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein the regulating means to vary spark
No. of patents: 105
Last issue date: 09/30/2008


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NumberTitleIssue Date
RE40523Non-contact rotational position sensor and throttle valve assembly including non-contact rotational position sensor
A non-contact sensor for sensing a rotational position of a rotating object is provided. A ring-shaped permanent magnet magnetized in the axial direction is sandwiched between two pairs of magnetic plates from above and below. Two pairs of upper and lower protruded ...
09/30/2008
7413043Method and system for estimating barometric pressure in a hybrid vehicle
Barometric pressure is determined in a hybrid electric vehicle from manifold absolute pressure. During engine operation, wide open throttle is commanded and output torque disturbances are offset by the electric machine. Barometric pressure is estimated based on sens...
08/19/2008
7314033Fuel management system for variable ethanol octane enhancement of gasoline engines
Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as ...
01/01/2008
7263971Knocking control device for watercraft engine
A knocking control device for a watercraft engine includes a knocking learning value renewing section for changing a knocking learning value toward a low octane number ignition timing map when the knock sensor detects a knocking condition. The device changes the kno...
09/04/2007
7260469Method for operating an internal combustion engine
In a method for operating an internal combustion engine, a first data quantity is derived based on a signal of a first sensor which detects the pressure in a first combustion chamber of a plurality of combustion chambers, and a second data quantity is derived based ...
08/21/2007
7251553Thermal optimization of EMI countermeasures
The present invention provides an electronic circuit and EMI countermeasure for an automotive electronic control unit that provides a maximum amount of EMI protection under normal operating conditions, i.e., ambient temperatures. The effectiveness of the EMI counter...
07/31/2007
7229381Method for controlling engine starts for a vehicle powertrain
A method is disclosed for controlling an internal combustion engine in a vehicle powertrain. A filtered driver demand for torque at vehicle traction wheels is used to determine an engine torque command. The engine torque command is initialized to a percentage of a t...
06/12/2007
7225787Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred th...
06/05/2007
7216627Internal combustion engine provided with double system of fuel injection
An internal combustion engine includes an engine control unit for setting a ratio of fuel injection quantity of both the injectors. The engine control unit includes a memory storing four sheets of ignition timing maps, with reference to which the maximum torque gene...
05/15/2007
7184876Device and process for determining the position of an engine
Device for determining the position of an engine includes: a sensor that has a rotary part and a fixed part, whereby said fixed part comprises: elements (for generating a first signal based on the position of the rotary part...
02/27/2007
7072757Fuel control system
An apparatus and method of controlling an engine by determining the state of an ignition command device and the speed of an engine and operating a fuel pump during a predetermined period in response to the ignition command device being in a predetermined state and t...
07/04/2006
7059116Power output apparatus and control method for same
During the catalyst warm-up period, when control enabling reduction in hydrocarbons is not executed in gasoline engine 100, the opening of the throttle valve 101 is made smaller in order to reduce the hydrocarbon discharge. During the catalyst warm-up ...
06/13/2006
7012349Machined rotor assembly and method of making same
The present invention provides a single piece machined rotor comprising a shell having an upper lip and a lower lip, with a pocket formed between the upper lip and the lower lip for mounting magnets therein. The magnets are fixed in place within the inner sidewall o...
03/14/2006
7007668Ignition control system for internal combustion engine
An ignition control system for an internal combustion engine includes a throttle opening detector, a crank angle detector, a stroke determiner, and an ignition timing corrector. The throttle opening detector detects a throttle opening of a throttle valve disposed in...
03/07/2006
7000589Determining manifold pressure based on engine torque control
A torque control system for an engine includes a throttle plate having an adjustable throttle position to regulate a first mass air flow into the engine. A control module determines a first mass air flow into the engine and monitors an engine speed. The control modu...
02/21/2006
6978761Cylinder event based spark
A method to deliver spark during a start for an internal combustion engine is described. The method provides individual cylinder spark angle control based on the number of fueled cylinder events. The method offers improved engine emissions while maintaining engine s...
12/27/2005
6976472Ignition circuit for an internal combustion engine
An ignition circuit for a two-stroke engine has a spark plug connected via an ignition switch to a voltage source. The ignition switch is actuated via a control circuit to close the ignition switch in dependence upon the crankshaft angle and the rpm of the engine an...
12/20/2005
6935313System and method for diagnosing and calibrating internal combustion engines
A method, system, and machine-readable storage medium for determining a predetermined operating condition of an internal combustion engine are disclosed. In operation, the method, system and machine-readable storage medium measure a cylinder pressure in at least one...
08/30/2005
6915783Method for the damping of mechanical vibrations in the drive train of an internal combustion engine
A method for the damping of mechanical vibrations in the drive train of an internal combustion engine by detection of vibration excitations in the drive train, and adjustment of the ignition angle of the internal combustion engine in the event of the occurrence of a...
07/12/2005
6901908Idle speed control apparatus and method for internal combustion engine
An idle speed control apparatus for an internal combustion engine is provided which, when the internal combustion engine is started in a cold mode, provides ignition timing engine speed control (m1) such that ignition timing in which said ignition driving dev...
06/07/2005
6866023Lean burn engine control system
A control system that enables optimum lean burn control only by operating one lever beyond a lean limit of a lean burn engine. A link mechanism opens a throttle valve at an angle according to the manipulated variable of a power lever while the throttle valve is loca...
03/15/2005
6796289Ignition control apparatus for engine with turbocharger
The burning of unburned fuel in an exhaust pipe is a technique for preventing a turbo lag. However, since the technique requires combustion in the exhaust pipe, the temperature in the exhaust pipe becomes high, which is likely to damage the exhaust pipe, cause the e...
09/28/2004
6769401Power output control system for internal combustion engine
There is provided a power output control system for an internal combustion engine, which enables the vehicle to smoothly perform refuge travel to find a place to park when an electric throttle control device becomes incapable of controlling a throttle valve, while e...
08/03/2004
6711490Intake air amount computing apparatus and method for the same, and intake pressure computing apparatus and method for the same
An intake pressure computing apparatus and a method for the same compute an intake pipe pressure P0 based on a sum of a throttle passing air amount QA0 calculated based on at least a throttle opening and a flow of purge air that flows into an intake pipe through a p...
03/23/2004
6701895Cylinder event based spark
A method to deliver spark during a start for an internal combustion engine is described. The method provides individual cylinder spark angle control based on the number of fueled cylinder events. The method offers improved engine emissions while maintaini...
03/09/2004
6668798Apparatus for controlling ignition timing of engine
An apparatus for controlling an ignition timing of an engine is capable of reducing or preventing occurrences of backfires. The apparatus includes a no-load deceleration state detector for detecting that an engine is in a no-load deceleration state. An en...
12/30/2003
6626144Control device for internal combustion engine
An electronic control unit 10 of an internal combustion engine sets a target throttle valve opening degree based on the amount of accelerator pedal operation, and starts driving an electronically controlled throttle valve 16 after a predetermined delay ti...
09/30/2003
6561158Enhanced engine response to torque demand during cold-start and catalyst warm-up
A spark ignited internal combustion engine employs fuel injectors positioned to inject fuel directly into combustion chambers of the engine, and an electronic engine controller (EEC) to control operation of the engine. The EEC implements a routine which c...
05/13/2003
6559637Non-contact rotational position sensor and throttle valve assembly including non-contact rotational position sensor
A non-contact sensor for sensing a rotational position of a rotating object is provided. A ring-shaped permanent magnet magnetized in the axial direction is sandwiched between two pairs of magnetic plates from above and below. Two pairs of upper and lower...
05/06/2003
6502543Intake-air quantity control apparatus for internal combustion engines
In an intake-air quantity control apparatus for an internal combustion engine equipped with a variable valve timing system associated with at least an intake valve, a throttle valve located upstream of the intake valve, a throttle actuator variably adjust...
01/07/2003
6446600Sensor arrangement and engine management device for a combustion engine
A sensor arrangement and engine management device for a combustion engine, the engine management device including the sensor arrangement for detecting variables indicative of engine load, a mechanism for determining engine load on the basis of measured va...
09/10/2002
6400141Hall effect rotation sensor for a throttle valve unit
A Hall-effect angular rotation sensor device for a throttle valve unit. The sensor includes a housing unit, a stationary unit, and a moving unit moveable relative to the stationary unit. The stationary and the moving units are at least partially enclosed ...
06/04/2002
6298824Engine control system using an air and fuel control strategy based on torque demand
A control system for a fuel injected engine provides an engine control unit that receives signals from a throttle handle that is manually manipulated by an operator of a marine vessel. The engine control unit also measures engine speed and various other p...
10/09/2001
6263856Powertrain output monitor
A powertrain control method for an internal combustion engine responsive to an accelerator pedal input, the engine having at least one fuel injector responsive to a commanded fuel signal. The method comprises the steps of determining the engine speed, det...
07/24/2001
6237562Method of controlling compression ignition internal combustion engine
There is provided a method of controlling a compression ignition internal combustion engine which allows switching of combustion of an air-fuel mixture between compression ignition combustion for burning said air-fuel mixture by compression ignition and s...
05/29/2001
6234147Ignition timing control device for internal combustion engine
An ignition timing control device for an internal combustion engine is capable of preventing shock of an engine upon rapid acceleration by suitably controlling the ignition timing of the engine. When the width of the opening of a throttle valve is kept wi...
05/22/2001
6220904Ignition timing control for marine engine
The present invention is an ignition control system controlling ignition firing timing of an ignition element associated with an engine having an output shaft powering a water propulsion device, an intake system including a throttle valve, and a sensor pr...
04/24/2001
6216669Control system for an internal combustion engine
A control system for an internal combustion engine adapted to precisely control an ignition position of the internal combustion engine in accordance with a revolution of the engine detected from an output of a pick up coil generating a signal in synchroni...
04/17/2001
6135087Launch spark
A spark control method for a vehicle engine is provided for enhancing engine performance and fuel economy prior to a fully warm state. The spark control method is based on coolant temperature and engine speed while accounting for an engine position and ti...
10/24/2000
6098591Marine engine control
A number of embodiments of engine control for marine application wherein the engine is called upon to operate for long periods at speeds substantially below normal idling speed. This is encountered when trolling. The arrangement includes a system for subs...
08/08/2000
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