Class / Patent application number | Description | Number of patent applications / Date published |
123349000 |
Having condition responsive means with engine being part of a closed feedback system (e.g., cruise control)
| 156 |
123320000 |
Responsive to deceleration mode (e.g., engine acting as a brake)
| 113 |
123337000 |
Specific throttle valve structure
| 100 |
123395000 |
Open loop condition responsive
| 88 |
123339100 |
Idle speed control
| 74 |
123402000 |
Charge volume varying (e.g., total amount of mixture fed to engine is varied; relative amounts of air and fuel are fixed)
| 52 |
123344000 |
Charge proportion varying (e.g., the fuel-air ratio is varied)
| 37 |
123347000 |
By changing valve timing
| 31 |
123336000 |
Having plural throttle valve structure
| 24 |
123345000 |
By changing valve lift
| 16 |
123332000 |
Engine speed reduction by fuel cutoff
| 16 |
123334000 |
Engine speed reduction by partial or complete omission of the ignition
| 8 |
123330000 |
Engine speed reduction by overriching the combustible mixture (e.g., choking engine) | 5 |
20100313847 | VEHICLE STABILITY AND SURGE CONTROL - In one example, a method is described for operating an engine of a vehicle, the engine having a combustion chamber. The method may include controlling a stability of the vehicle in response to a vehicle acceleration; and adjusting dilution in the combustion chamber of the engine to reduce surge in response to the vehicle acceleration. The dilution may be adjusted by adjusting cam timing, for example. | 12-16-2010 |
20120199099 | AIR-FUEL RATIO CONTROL DEVICE FOR A CARBURETOR - It is intended to provide an air-fuel ratio control device for a carburetor, which is capable of variably inject fuel by opening and closing a choke valve in accordance with an opening degree of a throttle valve and the load and which is capable of achieving low cost, clean emission and fuel saving by attaining a desired air-fuel ratio in an entire operational range (rotation speed, load) of the internal combustion engine. The air-fuel ratio control device is provided with, but not limited to, a choke valve | 08-09-2012 |
20120304961 | System and Method For Use Of Purge Gas To Terminate Internal Combustion Engine Operation - A purge gas injection system for internal combustion engines is disclosed. The system comprises a purge gas container filled with a sufficient purge gas to interrupt the combustion cycle of the engine, equipped with a controllable flow device capable of initiating and terminating flow from the container upon demand, with tubing connected to the purge gas container to direct the purge gas to a nozzle mounted on the combustion air intake of the engine. The system can be operated whenever the undesired conditions of dieseling or engine run-on are experienced and the operator of the engine may cause the purge gas to flow into the combustion air intake to defeat the undesirable run-on conditions. | 12-06-2012 |
20130068196 | OPERATION DEVICE FOR ENGINE - There is the operation device for an engine. An operation device for an engine performs a throttle operation of the engine which is disposed apart from an operation unit operated by an operator. The operation device includes: a link member rotatable with respect to a base in response to an operation of the operation unit; a cam member fixed to the base, and disposed at a distance from the center of rotation of the link member, the distance changing continuously according to the angular position of the cam member around the center of rotation; a cam follower connected to the link member and configured to along the cam member; and a throttle drive member for connecting the cam follower to a throttle operation unit of the engine. | 03-21-2013 |
20130269654 | METHOD OF CONTROLLING A DIESEL ENGINE - A method of controlling a diesel engine includes sensing a speed of the diesel engine, and closing a throttle of the diesel engine when the sensed speed of the diesel engine is equal to or greater than a maximum allowable engine speed to prevent oxygen from entering an intake manifold of the diesel engine, thereby preventing combustion and stopping the operation of the diesel engine. An Exhaust Gas Recirculation (EGR) valve is actuated to regulate circulation of exhaust gas from the diesel engine through the intake manifold to control pressure within the intake manifold to prevent damage to other engine components from excessive positive or negative pressure. | 10-17-2013 |
123343000 |
Regulator accessory (e.g., cleaner, adjusting tool, etc.) | 3 |
20130239927 | SINGLE ELECTRONIC GOVERNOR FOR MULTIPLE ENGINES - A governor system is provided that includes a governor having an actuator, and a coupler link configured to couple at a first end to the actuator and at a second end to a throttle of an engine being controlled. One or more mechanical characteristics of the coupler link, the throttle, an actuator arm of the actuator, or some combination thereof, are specific to the engine and configured such that each position of the actuator causes a given output of the engine independent of particular characteristics of the engine. | 09-19-2013 |
20140290621 | POWER EQUIPMENT WITH THROTTLE RELEASE ACTUATOR - An outdoor power tool may include an engine, a carburetor configured to provide a fuel and air mixture to the engine based on operation of a throttle assembly, a selector and a throttle release actuator. The selector may be operably coupled to the throttle assembly to control a position of the throttle assembly in a selected one of a plurality of throttle positions. One of the throttle positions may be an idle position and each of the other throttle positions may be selectable by an operator via manual positioning of the selector. The throttle release actuator may be configured to return the selector from any one of the throttle positions to the idle position responsive to operator actuation of the throttle release actuator. | 10-02-2014 |
20140299095 | CONTROL APPARATUS FOR GENERAL-PURPOSE INTERNAL COMBUSTION ENGINE - In a control apparatus for a general-purpose internal combustion engine including a generator as a power supply, the generator includes a main generator coil supplying power to the stepping motor, and an auxiliary generator coil supplying power to an ignition device of the engine. The apparatus includes ignition timing controller for, when starting the engine by a manual starter, detecting that an engine speed reaches or exceeds a predetermined engine speed not exceeding a connecting rotation speed of a centrifugal clutch to retard an ignition timing of the engine, thereby suppressing increase in the engine speed to less than the connecting rotation speed, and for restoring the ignition timing to its normal timing after a predetermined time elapses from start of retarding the ignition timing. Accordingly, it suppresses overshooting of an engine speed above the connecting rotation speed even if a delay occurs in closing a throttle valve by a delay in activating the motor. | 10-09-2014 |
123342000 |
Regulator changes length of accelerator linkage | 1 |
20110315113 | Engine Synchronizer - Engine synchronization apparatus and system for multi-engine vehicles such as boats and aircraft providing limited authority throttle cable trim effected by an apparatus interposed between the throttle plate and throttle cable of a slave engine and mounted in a floating configuration. An actuator is mounted to the apparatus to trim the distance between the throttle plate and throttle cable attachment thereby trimming the throttle cable. A system is provided in which a difference signal derived from master and slave engine tachometer signals is used to control the actuator and synchronize the engines within a predetermined range. | 12-29-2011 |
Entries |
Document | Title | Date |
20110041800 | POSITION SENSOR FOR AN OUTPUT SHAFT USED IN A SHIFT AND THROTTLE SYSTEM - A rotary actuator comprises a housing with an output shaft extending from the housing. There is a magnet disposed on the output shaft and the output shaft is coupled to an actuator arm. A motor rotates the output shaft. A position sensor mounted on a circuit board determines the position of the output shaft based on the position of the magnet. A position of the actuator arm may be determined based on the rotating position of the output shaft. | 02-24-2011 |
20110192374 | METHODS AND SYSTEMS FOR ASSISTED DIRECT START CONTROL - Methods and systems are provided for expediting engine spin-down in an engine that is shutdown during engine idle-stop conditions and restarted during restart conditions. In one example, the method comprises, during an automatic engine idle-stop, turning off spark, operating a first cylinder with a rich ratio of air to injected fuel richer than a rich flammability limit, operating a second cylinder with a lean ratio of air to injected fuel leaner than a lean flammability limit, and mixing un-combusted exhaust from the first and second cylinders with exhaust, the exhaust mixture being substantially stoichiometric. | 08-11-2011 |
20110220060 | IMPLEMENT HAVING ROTATIONAL SPEED REDUCTION AND OPERATING METHOD THEREFOR - An implement comprises an internal combustion engine having a throttle valve. At least one handle, the inside of which is provided with a gas lever likewise in a pivotal manner, is attached to a housing surrounding the internal combustion engine. The minimum distance between the gas lever and the handle is defined by a stop. When the operator lifts the implement by the handle, the position of the gas lever also changes. Even when the gas lever is fully depressed, only a part-load position is achieved at the throttle valve. In this way, effective rotational speed limitation is achieved. | 09-15-2011 |
20130092125 | METHODS AND SYSTEMS FOR CONTROLLING AIRFLOW THROUGH A THROTTLE TURBINE GENERATOR - Various systems and methods for an engine system which includes a throttle turbine generator having a turbine which drives an auxiliary generator and disposed in a throttle bypass are described. In some examples, a throttle bypass valve is controlled to adjust airflow through the throttle bypass responsive to airflow to cylinders of the engine. In other examples, an operating parameter such as throttle position is controlled based on transient operating conditions of the engine. In still other examples, charging of a battery is coordinated between the auxiliary generator and a primary generator. | 04-18-2013 |
20130180499 | ENGINE THROTTLE CONTROL WITH BRAKE BOOSTER - Methods and systems are provided for reducing variability in air-fuel control due to variations in brake booster vacuum levels at an engine start. A throttle position is adjusted during an engine start based on the vacuum availability in the brake booster to control a rate of intake aircharge flow. By allowing aircharge to enter the intake manifold at a more consistent rate, air-fuel control is improved and exhaust emissions are reduced. | 07-18-2013 |
20130192560 | SAFETY DEVICE FOR CONTROLLING AN ENGINE COMPRISING ACQUISITION REDUNDANCY OF A SENSOR MEASUREMENT - A safety device for controlling an engine includes a first and a second sensor of an environmental parameter, two channels for processing data measured by the sensors, each of the channels each including a command module and a power supply. The device includes at least two relays. The first relay is capable of receiving a first command coming from a supply and delivering, in the absence of the first command, data from the first sensor to the second command module. The second relay is capable of receiving a second command coming from the supply and delivering, in the absence of the second command, data from the second sensor to the first command module. The supply of the active channel sends a command to the relay associated with it, the relay sending data from the sensor to the active channel. | 08-01-2013 |
20130228152 | AIR SUPPLY DEVICE OF STRATIFIED SCAVENGING TWO-CYCLE ENGINE - An air supply device ( | 09-05-2013 |
20130239926 | DRIVE TRAIN AND METHOD FOR OPERATING SAME - A drive-train of a motor vehicle, with a drive aggregate comprising at least an internal combustion engine ( | 09-19-2013 |
20130247868 | AIR-INTAKE CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE - An air-intake control apparatus of an internal combustion engine formed by attaching a flange portion provided to an end portion of a drive motor to a cylindrical hole portion. A throttle body has at least one positioning projection (or recess) provided to an inner wall of the cylindrical hole portion. The drive motor complementarily has at least one positioning recess (or projection) provided to the flange portion at a position corresponding to the positioning projection (or recess). The drive motor is attached to the cylindrical hole portion while the positioning recess (or projection) abuts on the positioning projection (or recess) in such a manner that a center distance between a motor shaft and a throttle shaft takes a predetermined value. Hence, not only attachment workability but also attachment accuracy of the drive motor can be enhanced. The air-intake control device therefore has higher product reliability. | 09-26-2013 |
20130276747 | INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION AND METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A system is provided for an internal combustion engine comprising, at least two cylinders wherein the at least two cylinders form at least two groups, wherein each group comprises at least one cylinder, the at least one cylinder of at least one group being formed as a cylinder which can be activated in a load-dependent manner and which is deactivated if a predefined load is undershot. The at least two groups are characterized by different cylinder volumes, the at least one cylinder of a first group having a lesser cylinder volume and the at least one cylinder of a second group having a greater cylinder volume; and the at least one cylinder of the second group comprises an activatable and deactivatable cylinder. Use of the first cylinder group, and deactivation of the second cylinder group during partial loads increases engine efficiency and fuel economy. | 10-24-2013 |
20130276748 | METHOD AND DEVICE FOR CONTROLLING AN ADJUSTING DEVICE OF A MOTOR VEHICLE - In order to control an adjusting device of a motor vehicle, in particular a window lift, having a motor-driven adjusting part, the speed of the drive is controlled to a desired speed value during normal operation at least in a sub-range of an adjustment travel and the driving force is controlled to a desired force value in the event of difficult motion for a first time period. After the first time period has ended, the adjusting part is reversed or the drive is at least stopped in the event of pinching. If the difficult motion is not an event of pinching, the speed of the drive is controlled anew to the desired speed value, wherein the driving force is first reduced to a first force and is increased to the desired force value within a second time period and/or a value realized during normal operation is used as a desired force value for the driving force. | 10-24-2013 |
20130284147 | THROTTLE RETURN SPRING WITH ECCENTRIC LOCATOR COILS - A helical torsion return spring and a throttle body assembly for urging a throttle plate of a throttle body assembly to a default position when a throttle motor of the throttle body assembly is disabled. The return spring includes a middle portion, a first end portion, a second end portion, a first spring leg, and a second spring leg. The throttle body assembly includes a throttle shaft, a first bushing, a second bushing, and the spring defined above. A first end portion center axis defined by the first end portion and a second end portion center axis defined by the second end portion are offset from a middle portion center axis defined by the middle portion. | 10-31-2013 |
20130319369 | ARBITRATION STRATEGY FOR SLOW RESPONSE AND FAST RESPONSE TORQUE REQUESTS - The present disclosure relates to a system for managing engine output that includes a machine manager module and a combustion module. In one embodiment, the combustion module includes a slow response pathway and a fast response pathway. The slow response pathway includes managing air and fuel actuators and the fast response pathway includes managing spark timing. According to one embodiment, managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control and involves sacrificing engine efficiency for engine responsiveness. Further, the fast response pathway may be selectively enabled based upon an optimization index. | 12-05-2013 |
20130333662 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - Provided is a control apparatus for an internal combustion engine, which can favorably suppress an occurrence of abnormal combustion regardless of its operational conditions. An occurrence probability of abnormal combustion of the internal combustion engine ( | 12-19-2013 |
20140034009 | Control Device for an Air Supply System and Method for Controlling or Regulating an Air Supply System - A control device for an air supply system of a vehicle, which has a transmission device and an internal combustion engine for driving the vehicle in load phases, is configured to receive measured pressure signals and to output control signals to initiate and terminate delivery phases of a compressor that is or can be connected to the internal combustion engine. The control device picks up state signals relating to a current state of the internal combustion engine and/or the transmission device and initiates a delivery phase as a function of the state signals in load phases of the internal combustion engine. | 02-06-2014 |
20140102409 | METHOD FOR STARTING AN INTERNAL COMBUSTION ENGINE - The invention relates to a method for starting an internal combustion engine ( | 04-17-2014 |
20140102410 | INTAKE DEVICE - An air intake device offers simplified construction, reduced size, lowered cost, etc., while facilitating disposing of throttle body and driving part in intake air passage, allowing throttle body to be reliably held, and eliminating possible occurrence of intake air leakage, etc., thus positively securing the performance. The air intake device includes an actuator and an intake air manifold made of resin. In actuator, there are provided a throttle body, a throttle valve, a motor for opening/closing throttle valve, and a power transmission mechanism. Throttle valve and motor are positioned and held on one side of a support member, and power transmission mechanism is on the other side. In intake air manifold, a housing chamber is provided. When a fixing part of support member is jointed to a part to be fixed of intake air manifold, throttle body and motor are accommodated in a predetermined position in housing chamber. | 04-17-2014 |
20140116376 | ESTIMATION DEVICE FOR CYLINDER INTAKE AIR AMOUNT IN AN INTERNAL COMBUSTION ENGINE - An estimation device for a cylinder intake air amount in an internal combustion engine can estimate a cylinder intake air amount to a sufficient accuracy for suitable engine control, in either of steady state operation and transient operation with a small number of adaptation constants and a small amount of calculation load, without requiring a huge memory capacity. The relation between an opening degree and an effective opening area of a throttle valve has been learned, while calculating the cylinder intake air amount in an S/D method from a volumetric efficiency correction factor map adapted by valve timing at the time of steady state operation, and in a period from a transient change until an exhaust manifold temperature is converged, an intake air amount is calculated based on the relation thus learned. The cylinder intake air amount is calculated based on a physical model of an intake system response delay. | 05-01-2014 |
20140123938 | THROTTLE CONTROL SYSTEMS AND METHODS FOR REDUCING INDUCTION NOISE - A throttle control system includes a target pressure module, a torque determination module, and a target opening module. The target pressure module determines an induction noise value based on an engine operating parameter and determines a target pressure downstream of a throttle valve of an engine based on a pressure at an inlet of the throttle valve and the induction noise value. The torque determination module determines a torque request for the engine based on the target pressure. The target opening module determines a target opening for the throttle valve based on the torque request and selectively adjusts opening of the throttle valve based on the target opening. | 05-08-2014 |
20140144407 | SECTOR GEAR WITH INTEGRATED BUSHING - A throttle body having an integrated sector gear which includes a sector gear component, a bushing integrally formed with the sector gear component such that the bushing and sector gear component are a single part, and an insert, where the bushing and the sector gear formed around the insert. The insert includes a first arm and a second arm, and the insert is configurable to be formed with the sector gear and the bushing to be suitable for use with one or more packaging requirements of the throttle body. | 05-29-2014 |
20140202421 | ENGINE SPEED CONTROL - According to one embodiment, an apparatus for controlling operation of an internal combustion engine includes a conditions module that is configured to determine an out-of-gear condition of the internal combustion engine. The apparatus also includes a permission module that is configured to allow a speed of the internal combustion engine to exceed a maximum engine speed limit if the determined out-of-gear condition meets a threshold, and prevent the speed of the internal combustion engine from exceeding the maximum engine speed limit if the determined out-of-gear condition does not meet the threshold. | 07-24-2014 |
20140209060 | MOTORCYCLE - An air cleaner positioned above a cylinder head is connected to an intake port of the cylinder head through a connecting tube, a throttle device, and an insulator. An insulator attachment surface is formed in a rear-side wall of a cylinder head such that the insulator attachment surface is inclined to extend in a forward direction while extending upwardly. An insulator is formed in such an arc shape in a side view wherein a flow direction of air flowing inside the insulator is directed more in a forward direction as the air approaches the cylinder head. A throttle device having an intake passage thereof directed in a vertical direction is connected to the insulator. A connecting tube is formed to curve in such a shape that the connecting tube has its upstream end opened in a forward direction and is rounded outwardly in an obliquely rearward direction. | 07-31-2014 |
20140230780 | REAL-TIME RESIDUAL MASS ESTIMATION WITH ADAPTIVE SCALING - Systems and methods are described for on-line, real-time estimation of a residual mass in an engine cylinder during HCCI combustion. The residual mass is estimated based on an estimated residual mass for a previous combustion cycle. A value of a first performance variable for the first combustion cycle is determined based only on engine data measured by one or more sensors. A value of a second performance is estimated based at least in part on the estimated residual mass for the first combustion cycle. An adaptive scaling factor is determining for the first combustion cycle based on the determined value of the first performance variable and the estimated value of the second performance variable. An adjusted residual mass for the first combustion cycle is then determined based on the estimated residual mass for the first combustion cycle and the adaptive scaling factor for the first combustion cycle. | 08-21-2014 |
20140238343 | SOLENOID AUTOCHOKE FOR AN ENGINE - A choke system for an internal combustion engine includes a carburetor having an air intake, a choke valve disposed in the air intake, and a choke lever coupled to the choke valve, wherein the choke valve is movable between a closed position and an open position, a mechanical linkage coupled to the choke lever, and a solenoid attached to the carburetor and coupled to the mechanical linkage so activation of the solenoid moves the choke valve, wherein the solenoid is activated in response to activation of a starter system of an internal combustion engine, thereby moving the choke valve via the mechanical linkage to the closed position. | 08-28-2014 |
20140251265 | Engine Crankshaft Torque Sensor - In various embodiments, an engine crankshaft is disclosed. The engine crankshaft comprises a rear bearing journal. The rear bearing journal has an output end. The rear bearing journal defines a substantially cylindrical cavity extending from the output end into the rear bearing journal. The engine crankshaft may further comprise at least one torque sensor operatively coupled to the rear bearing journal. The at least one torque sensor is configured to generate a torque signal corresponding to a torque exerted on the rear bearing journal. The torque exerted on the rear bearing journal is indicative of a torque output of an engine. | 09-11-2014 |
20140261306 | MOTOR CONTROL APPARATUS THAT GENERATES PRELOAD TORQUE VALUE AS FUNCTION OF MOTOR ACCELERATION - A preload torque value generating unit ( | 09-18-2014 |
20140261307 | ENGINE INTAKE CONTROL APPARATUS - In an engine intake control apparatus, a cover is made of synthetic resin, a motor support plate is made of metal, a positioning boss is integrally formed on the cover, a first positioning hole arranged on a motor support plate is fitted on an outer peripheral surface of the positioning boss, and the positioning boss is positioned and fitted with a throttle valve body each other. With such an engine intake control apparatus, it is possible to perform with high accuracy the mutual positioning between the three components, i.e. the motor support plate, the cover and the throttle valve body, and it is possible to effectively improve the opening and closing accuracy for the opening and closing of the throttle valve by the motor. | 09-18-2014 |
20140283783 | CRANKSHAFT FOR VARIABLE DISPLACEMENT INTERNAL COMBUSTION ENGINE - A crankshaft includes a plurality of crankpins. The crankpins are defined on the crankshaft and are longitudinally spaced apart from each other along a rotational axis. Each of the crankpins is configured to be operatively connected to a piston of an engine including a plurality of cylinders. The engine is configured to deactivate one of the cylinders. At least two of the crankpins are substantially aligned with each other along a pin axis. At least one of the crankpins is rotationally offset from the pin axis in a rotational direction of the crankshaft such that the engine has an even firing order even when one of the cylinders is deactivated. | 09-25-2014 |
20140318495 | ENGINE SPEED DETERMINATION BY GEAR CASTELLATION - A speed-determining system in an internal combustion engine is disclosed. The internal combustion engine includes a crankshaft, a camshaft, and an engine control module (ECM). The system includes a first gear that rotates with the crankshaft and a second gear attached to the camshaft. At least one idler gear is operatively meshed with the first gear and the second gear. A fuel pump gear, meshed with the idler gear, is driven proportionally to the first gear and the second gear. The fuel pump gear includes a transversal face, a circumferential lip portion, and a number of notches along the circumferential lip portion. A proximity sensor, in communication with the ECM, is spaced from the second gear. A rotation of the fuel pump gear moves the notches relative to the proximity sensor, triggering the proximity sensor to register movement of the fuel pump gear and calculate at least a camshaft speed. | 10-30-2014 |
20140366838 | INTAKE SYSTEM FOR ENGINE - Output performance of the engine may be maximized by a configuration in which air is supplied so as to maximize volumetric efficiency of the respective cylinders in a multi-cylinder engine including a plurality of cylinders. | 12-18-2014 |
20150107552 | ENGINE CONTROL UNIT FOR CONSTRUCTION MACHINERY - Provided is an engine control apparatus for construction machinery, including: an engine control dial manually operated by a user and configured to generate a control signal for increasing and decreasing revolutions per minute (rpm) of an engine by a predetermined unit; a jog shuttle including a jog switch, which is manually rotated and pressed by the user, and configured to generate a selection signal for selecting or changing functions corresponding to various operation modes; an instrument panel configured to display operation information of various elements which the user requires while driving the construction machinery; an engine controller configured to control the engine to respond to the control signal generated by the engine control dial; and an equipment controller configured to receive either the control signal generated by the engine control dial or the control signal corresponding to the rotation and the press of the jog switch, and provide the engine controller with a value of an rpm of the engine corresponding to the received control signal among values of the rpms of the engine corresponding to the respective control signals. | 04-23-2015 |
20150330319 | SYSTEM AND METHOD OF OPERATING ENGINE - A method of operating an engine includes determining an intake air temperature and an engine speed. The method includes selectively initiating one of a first operating mode, a second operating mode and a third operating mode based on at least the intake air temperature and the engine speed. The first operating mode includes increasing the engine speed progressively by an incremental speed value. The second operating mode includes deactivating at least one Exhaust Gas Recirculation (EGR) cylinder of the engine. The third operating mode includes shutting down the engine. | 11-19-2015 |