Class / Patent application number | Description | Number of patent applications / Date published |
123564000 | Boost control | 67 |
20080302343 | Super Charged Engine - An engine with an output shaft extending through the engine block and generally parallel to the piston, the engine includes a boost piston cylinder integral to the cylinder, and a boost piston for producing compressed air so as to supercharge the engine. The engine further includes an energy translation mechanism translating linear movement into rotary movement, an energy translation mechanism for reducing the side force that the piston exerts against the inner wall of the combustion chamber, an energy transforming member working in concert with an engine torque absorbing/motion control torque reaction device to eliminate the lemniscate motion from being translated to the piston and to absorb all engine torque to case ground through a rolling element bearing, and a port time control system having a shaft phaser to adjust the phase of the pistons or the position of the air control valve. | 12-11-2008 |
20090050119 | System and Method for Determining Acceleration of an Internal Combustion Engine - An ECU for determining whether a request for acceleration is made to a supercharged internal combustion engine includes an acceleration request determining unit that determines whether a pressure difference between the upstream pressure and downstream pressure of a throttle valve disposed in an intake system is equal to or smaller than a predetermined value, and determines that a request for acceleration is made when the pressure difference is equal to or smaller than the predetermined value. The ECU also includes a variable valve actuating mechanism control unit that controls an InVVT and an ExVVT so that the intake charging efficiency and output torque of the engine become equal to the maximum intake charging efficiency and output torque at a certain downstream pressure when the acceleration request determining unit determines that a request for acceleration is made. | 02-26-2009 |
20090101121 | INTAKE AIR FLOW RATE DETECTION FOR INTERNAL COMBUSTION ENGINE - An intake air flow rate detection device for an internal combustion engine ( | 04-23-2009 |
20090178655 | Air induction system with recirculation loop - An air induction system for a power system is provided having a compressor operable to compress air directed into an engine. In addition, the air induction system has a throttle valve disposed between the compressor and the engine, the throttle valve being configured to selectively restrict the flow of compressed air into the engine. The air induction system also has a recirculation valve disposed between the compressor and the throttle valve, the recirculation valve being configured to selectively divert a portion of the flow of compressed air. Furthermore, the air induction system has a controller configured to actuate the recirculation valve in response to a pressure differential between air upstream of the throttle valve and air downstream of the throttle valve. | 07-16-2009 |
20090255518 | TURBO-CHARGED GASOLINE ENGINE WITH VARIABLE CONTROL OF INTAKE VALVES - In a turbo-charged gasoline engine the opening profile of each intake valve, defined by the opening and closing moments and by the lift, or by the opening stroke of the intake valve, is varied according to the engine operating conditions, so as to reduce or completely eliminate the intervention of a “waste-gate” valve and ensure that in each engine operating condition each cylinder processes only the quantity of air necessary for optimal combustion, with an air/gasoline dosage value close to the stoichiometric ratio. | 10-15-2009 |
20090260603 | SYSTEM AND METHOD FOR CONTROLLING A SUPERCHARGED ENGINE WITH INLET AND PORT THROTTLE - A method and system for controlling an engine with a supercharger includes a bypass valve control module controlling a bypass valve for the supercharger having a bypass flow area in response to a desired manifold absolute pressure, an inlet valve control module controlling an inlet throttle for a supercharger in response to a bypass flow area and a port throttle control module controlling a port throttle in response to the desired mass airflow. | 10-22-2009 |
20100024786 | Method for Manually Controlling a Turbocharger - A method and a system for manually controlling a turbocharger is disclosed. The method includes steps for selecting a minimum boost pressure and a maximum boost pressure. The method also includes steps for selecting a pre-configured boost mode, including a predefined boost pressure minimum and a predefined boost pressure maximum. | 02-04-2010 |
20100077998 | TURBOCHARGER BOOSTER SYSTEM - A turbocharged engine includes an internal combustion engine and a turbocharger powered by engine exhaust flow from the internal combustion engine to supply the engine with compressed intake air. The turbocharged engine further includes a turbocharger booster system with a dry low emissions burner. The burner fluidly communicates with an exhaust manifold of the engine and is operable to inject a combustion gas flow into the engine exhaust flow. The hot combustion gas flow is operable to increase the exhaust energy available to the turbocharger and thereby increase the output of compressed intake air. | 04-01-2010 |
20100116255 | FOUR-CYCLE ENGINE - A four-stroke engine ( | 05-13-2010 |
20100229840 | SYSTEMS AND METHODS FOR MEASURING ENGINE BOOST PRESSURE - An engine system includes a correction factor generation module and a boost pressure correction module. The correction factor generation module generates a correction factor based on a first pressure difference, wherein the first pressure difference corresponds to a difference between an intake manifold absolute pressure (MAP) when an engine is on and a barometric pressure. The boost pressure correction module generates a corrected boost pressure based on the MAP when the engine is on, a second pressure difference, and the correction factor, wherein the second pressure difference corresponds to a difference between the MAP when the engine is off and the barometric pressure. | 09-16-2010 |
20100236531 | Engine With Supercharger - In an engine | 09-23-2010 |
20100263639 | Engine Control Method and System - Methods and systems are provided for operating a vehicle engine including an intake and an exhaust, the engine further including a boosting device configured to provide a boosted air charge to the engine intake. One example method comprises, during an engine cold start, operating the engine with positive intake to exhaust valve overlap, driving a compressor of the boosting device at least partially via a motor to generate blow-through air flow into the engine exhaust through cylinders of the engine, and exothermically reacting a reductant with the blow-through air flow in the exhaust. | 10-21-2010 |
20100269799 | Supercharged Compressor and Method for Controlling a Supercharged Compressor - A supercharged compressor and method of operating the compressor supplies a commercial vehicle with compressed air. The compressor includes a piston chamber, a dead space or clearance volume and a valve unit for switching the clearance volume. The valve element is configured such that the air volume supplied by the supercharged compressor can be reduced to a value that is different from zero by activating the clearance volume. | 10-28-2010 |
20100275890 | METHOD OF OPERATING A SUPERCHARGER - A method of operating a supercharger ( | 11-04-2010 |
20100275891 | INTERNAL COMBUSTION ENGINE - A method for operating an internal combustion engine, comprising a compression device, an air/fuel mixture being compressed in the compression device, the air/fuel mixture ratio λ | 11-04-2010 |
20100300415 | External Spring Supercharger Bypass Valve - A screw compressor type supercharger includes an improved supercharger bypass valve including a spring biasing the bypass valve towards an open position. The spring may be a compression spring integrated into a bypass valve diaphragm, an extension spring extending parallel to a diaphragm arm, or a torsion spring on a bypass valve butterfly shaft. The spring is selected and installed to hold the bypass valve open at all vacuum levels and at up to one PSI of boost, and then to allow the bypass to close between one PSI and six PSI boost, and to be closed at above six PSI boost. The resulting control of the bypass valve prevents damage to the supercharger. | 12-02-2010 |
20100313855 | Method and device for providing a rotational speed and temperature indication of a supercharging device for an internal combustion engine - A detection circuit for providing indications of a rotational speed and a temperature of a supercharging system for an internal combustion engine is provided, which detection circuit includes: a rotational speed sensor for providing a periodic detection signal having a frequency dependent on a rotational speed in the supercharging system; a temperature sensor for detecting a temperature in the supercharging system; and a modification unit for providing a periodic output signal having a periodicity dependent on the periodic detection signal, and for setting a time length of a signal pulse of the periodic output signal as a function of the detected temperature, so that the periodic output signal provides the rotational speed indication by its periodicity and the temperature indication by the time length of the signal pulse. | 12-16-2010 |
20100313856 | METHOD OF CONTROLLING THE INTAKE OF A SUPERCHARGED INTERNAL-COMBUSTION ENGINE COMPRISING A BURNT GAS SCAVENGING OPERATION - The present invention relates to a method of controlling the intake of a supercharged engine comprising a cylinder ( | 12-16-2010 |
20100313857 | ENGINE WITH A CHARGING SYSTEM - An engine includes a charging system in which pressurized air is supplied to an intake side of the engine through an intake air passage. An induction passage branches and extends from the middle of the intake air passage and is provided with a control valve. The induction passage is in communication with an exhaust passage. The induction passage supplies secondary air to the exhaust passage through the control valve to treat the engine's exhaust gas. | 12-16-2010 |
20100326407 | SUPERCHARGING CONTROL SYSTEM OF AN INTERNAL COMBUSTION ENEGINE - The purpose of the present invention is providing a supercharging system which uses both of a mechanism such as VN or the like and an electric motor generating an assist force while making the supercharger operate smoothly when the assist by the electric motor is stopped. The system controls the electric motor in a feedback manner so that enough assist force is generated (FIG. | 12-30-2010 |
20110000469 | CHARGE AIR SYSTEM AND CHARGE AIR OPERATION METHOD - A charge air system for a combustion engine and an operation method are provided. The charge air system includes a first turbocharger stage for intake of combustion air supplied to the engine from a first pressure to a second pressure, a second turbocharger stage for compression of the compressed air to a third pressure, a first heat exchanger being arranged between the first and the second turbocharger stage for cooling the compressed air, a first intake air bypass for modulating the flow of the air through the first heat exchanger and/or a first mass flow control unit for controlling the flow of a cooling medium supplied to the first heat exchanger. | 01-06-2011 |
20110041815 | EXHAUST PURIFICATION SYSTEM WITH A DIESEL PARTICULATE FILTER AND A METHOD OF CLEANING SAID FILTER - A diesel engine system and a method for operating said system are provided. The diesel engine system includes a diesel engine provided with an exhaust conduit including a controllable supercharger located upstream of a catalytic converter, a fuel injector located between the supercharger and the catalytic converter, a diesel particulate filter located downstream of the catalytic converter, and a control unit for controlling the engine system. The control unit is arranged to determine that a regeneration of the particulate filter is required, which regeneration is initiated when a predetermined condition is fulfilled. The fuel injector is arranged to inject a predetermined amount of fuel during a first stage of the regeneration, and the supercharger is arranged to vary the flow rate of exhaust during the injection of fuel. The catalytic converter is arranged to combust the injected fuel, and the combusted fuel is arranged to burn particulates trapped within the diesel particulate filter. | 02-24-2011 |
20110067679 | SUPERCHARGED DIRECT-INJECTION ENGINE - Disclosed is a supercharged direct-injection engine, which comprises a supercharging device ( | 03-24-2011 |
20110083646 | Compressed Air Intake Engine Inlet Booster - An inlet air booster system for increasing turbocharger response time by utilizing compressed air from an engine driven compressor. Compressed air used to supply air for air braking system is channeled into an air tank to provide a boost of compressed air into the intake manifold. The inlet air booster system comprises an air booster ring disposed around a manifold inlet supply pipe, an air supply source, and a control valve. Compressed air from the air tank flows along a compressed air supply pipe regulated by a control valve, which in its open position allows air flow to the air booster ring. The air booster ring comprises an air chamber and a plurality of nozzles angled towards the direction of intake gas flow to provide a burst of compressed air into the intake manifold. The angled flow of compressed air enhances the flow of intake air into the intake manifold. | 04-14-2011 |
20110083647 | Internal combustion engine and supercharger - An internal combustion engine drivably connected to a variable displacement and variable internal compression ratio supercharger that supplies varying amounts of air to the engine air intake manifold that can range selectively from below through above atmospheric pressures responsive to the power requirements of the engine. The supercharger has a pair of rotors concurrently driven by the engine to move air to the engine. A slide assembly associated with screw rotors is movable with a controller relative to the rotors to bypass air to atmosphere and regulate the amount of air and pressure of the air above atmospheric pressure compressed by the screw rotors to the engine to increase the engine's efficiency. When operating at part-load unboosted, a throttle valve is operable to control the air mass flowing to the air intake manifold below atmospheric pressure to control the power of the engine. | 04-14-2011 |
20110088669 | Compression System for Internal Combustion Engine Including a Rotationally Uncoupled Exhaust Gas Turbine - As one example, a vehicle propulsion system is provided. The system includes: an engine with an intake air compressor and an exhaust gas turbine. Further, a control is provided to operate the compressor at a different speed than the turbine, at least under an operating condition, and to adjust an amount of opening overlap between engine valves in response to a rotational speed of the compressor. | 04-21-2011 |
20110094480 | Control Strategy for an Engine - A method of controlling an engine includes manipulating a wastegate to maintain the operation of the turbocharger within an optimum operating range. A combustion air bypass valve is manipulated between an open position and a closed position to create a negative pressure differential across a supercharger. The supercharger is sequentially disposed in-line before the turbocharger. The negative pressure differential is converted into a torque by the supercharger and transmitted from the supercharger back to the engine to increase the operating efficiency of the engine. | 04-28-2011 |
20110100340 | METHOD FOR CONTROLLING ENGINE TEMPERATURE OF AN ENGINE - A method for controlling engine temperature of an engine with a wide dynamic range is disclosed. In one example, the derivative of an engine temperature is assessed by a controller. The controller may adjust engine actuators to limit engine temperature in response to the derivative. | 05-05-2011 |
20110114066 | DEVICE AND METHOD FOR COMPRESSOR AND CHARGE AIR COOLER PROTECTION IN AN INTERNAL COMBUSTION ENGINE - A device is provided for compressor and charge air cooler protection in an internal combustion engine, such as a Diesel engine. The engine having an intake manifold and an exhaust manifold, first and second EGR routes, a charge air cooler, a turbocharger having a compressor and a turbine. A regulator is also provided for regulating the flow rate of exhaust gas and the splitting of exhaust gas between the first and second EGR route. A temperature sensor is also provided for sensing output temperature of gas at the outlet of said compressor. A method and computer readable medium embodying a computer program product are also provided that have a first phase of monitoring a parameter representative of the gas temperature at the output of the compressor and a second phase in which an activity involving engine components operation is performed. The activity is performed using temperature information determined in the monitoring phase. | 05-19-2011 |
20110120428 | METHOD FOR CONTROLLING THE LEVEL OF OXYGEN IN THE INTAKE MANIFOLD OF AN INTERNAL COMBUSTION ENGINE EQUIPPED WITH A LOW PRESSURE EGR SYSTEM - A method is provided for controlling the level of oxygen concentration in the intake manifold of an internal combustion engine system. The engine having an intake manifold and an exhaust manifold and corresponding intake and exhaust lines, the intake line having a leading point for mixing of fresh air, first and second EGR routes, a charge air cooler located in the intake line upstream the intake manifold and downstream the second EGR route, a turbocharger having a compressor located in the intake line and a turbine located in the exhaust line, the exhaust line having a diesel oxidation catalyst and an antiparticulate filter. The system has a regulator for regulating the flow rate of exhaust gas. The regulator including, but not limited to a low pressure EGR valve associated to the second EGR route. The method including, but not limited to at least a phase of determination of the oxygen concentration set-point at any point in the portion of the intake line between said leading point up to the intake manifold and a phase of maintaining the desired oxygen concentration set-point in any point of said portion. | 05-26-2011 |
20110126810 | METHOD FOR OPERATING A TURBO CHARGER AND CONTROLLER - A method is provided for operating a turbo charger of a combustion engine that includes, but is not limited to providing a set of values of a basic boost pressure for opening a waste gate for the turbo charger at a standard Temperature and at a standard pressure and measuring an ambient air temperature and an ambient air pressure. The method also includes, but is not limited to calculating a density of ambient air based on a mathematical formula using the measured ambient air temperature and the measured ambient air pressure and transforming at least one point of the provided set of values of the basic boost pressure at standard conditions into at least one point of an estimated set of values of the basic boost pressure at ambient conditions by a correction factor based on the calculated density, and controlling the turbo charger with least one corrected value of the basic boost pressure. | 06-02-2011 |
20110132335 | Stored Compressed Air Management for Improved Engine Performance - A method for providing air to a combustion chamber of an engine, the engine including a compressor and a boost tank selectably coupled to an intake manifold. The method includes varying a relative amount of engine exhaust in air pressurized in the boost tank based on engine operating conditions, and discharging the air pressurized in the boost tank to the intake manifold. | 06-09-2011 |
20110155108 | TURBOCHARGED ENGINE WITH NATURALLY ASPIRATED OPERATING MODE - A system and method for controlling a multiple cylinder internal combustion engine having an exhaust gas turbocharger with a compressor coupled to a turbine include redirecting substantially all intake airflow around the compressor and substantially all exhaust flow around the turbine when an engine operating parameter exceeds an associated threshold. In one embodiment, turbocharger boost is provided below an associated engine speed threshold with the turbocharger compressor and turbine bypassed at higher engine speeds such that the engine operates as a naturally aspirated engine. | 06-30-2011 |
20110180047 | METHOD AND APPARATUS FOR CONTROLLING SUPERCHARGED ENGINE - A supercharged engine has a geometric compression ratio ser to 16 or more and is designed to perform a compression self-ignition combustion under an air-fuel ratio leaner than a stoichiometric air-fuel ratio at least in a low engine speed range. On a lower engine load side than a given engine load within an engine operating region at which the compression self-ignition combustion is performed, a fresh air amount is reduced and an effective compression ratio (ε′) is increased, as compared with a higher engine load side than the given engine load within the engine operating region, and, on the higher engine load side than the given engine load, a supercharging pressure based on a supercharger ( | 07-28-2011 |
20110209690 | Method and System for Providing Air to an Engine - Systems and methods for supplying air to an engine are disclosed. In one example, an air inlet throttle is at least partially closed in response to a change in engine torque request. In another example, the air inlet throttle is adjusted in conjunction with adjusting an engine throttle. The approach can reduce compressor noise and may reduce the possibility of compressor surge. | 09-01-2011 |
20110265771 | Methods and Systems for Variable Displacement Engine Control - Methods and systems are provided for selecting a group of cylinders for selective deactivation, in a variable displacement engine system, based at least on a regeneration state of an exhaust catalyst. The position of one or more valves and throttles may be adjusted based on the selective deactivation to reduce back-flow through the disabled cylinders while also maintaining conditions of a downstream exhaust catalyst. Pre-ignition and knock detection windows and thresholds may also be adjusted based on the deactivation to improve the efficiency of knock and pre-ignition detection. | 11-03-2011 |
20110283976 | Vehicle Pneumatic Booster System Operating Method and Apparatus - An apparatus and method for improving vehicle performance by application of pneumatic boost to vehicle engines, including diesel engines having at least one turbocharger supplying air to the engine, in a manner which increases engine torque output while minimizing the potential for exceed various operating limits to the maximum practicable extent. The vehicle's pneumatic booster system controller implements strategies for shaping the rate of the air injection during a boost event, tailoring the air injection to obtain maximum engine torque output while respecting the operating limits, by controlling the timing, duration, quantity and/or injection pattern during a boost event to achieve a refined distribution of compressed air injection over the course of the boost event to provide desired engine torque output and fuel efficiency while minimizing the potential for exceeding a wide variety of operation limits, regulatory, engineering and passenger comfort limits. | 11-24-2011 |
20110283977 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - A control apparatus applied to an internal combustion engine including a turbocharger in which a movable vane mechanism capable of varying throttled quantity of a passage of intake air discharged from a compressor wheel by varying a position of vanes is disposed to a compressor, a low-pressure EGR passage to connect an exhaust passage and a section of the intake passage at the upstream side from the compressor, and a low-pressure EGR valve to open and close the EGR passage, wherein it is determined whether or not the vanes are locked and the low-pressure EGR valve is controlled toward an opened side so as to increase exhaust gas quantity to be recirculated to the intake passage via the low-pressure EGR passage while switching an operating state of the internal combustion engine to an emergency operating state in which output power of the internal combustion engine is restricted when the vanes are determined as being locked. | 11-24-2011 |
20110303198 | BELTED GEAR ASSEMBLY FOR DRIVING A SUPERCHARGER - A belted gear assembly for driving a supercharger includes a belt drive assembly for operatively connecting a gear drive assembly to an existing pinion shaft of an engine. The belt drive assembly includes a lower pulley assembly that is operatively connected to the pinion shaft and belted to an upper pulley assembly. The upper pulley assembly is operatively connected to a side gear of the gear drive assembly. The side gear engages an upper gear of the gear drive assembly, which is operatively connected to a lobe of the supercharger. Rotation of the upper gear thereby initiates rotation of the supercharger. The amount of boost provided to the supercharger is readily adjustable by simply changing the lower pulley assembly to adjust the RPM ratio for the supercharger. Each component of the belted gear assembly is isolated and fully self-contained, including a separate lubrication system and collection well. | 12-15-2011 |
20120000446 | TORQUE PULSE DAMPENER - A torsional pulse dampener including a pulley rotationally coupled to a piston that is axially displaceable and adapted to give torsional compliance from an engine for at least one-half revolution of an angular differential displacement between the pulley and the piston. | 01-05-2012 |
20120024266 | METHOD FOR DETERMINING THE ROTATION SPEED OF A SUPERCHARGER IN AN INTERNAL COMBUSTION ENGINE - A method for determining the rotation speed of at least one supercharger which compresses the sucked air in an internal combustion engine; the control method, during the normal operation of the internal combustion engine, comprises the steps of detecting, by means of a microphone, the intensity of a sound signal generated by the rotation of the supercharger; determining a frequency content of the sound signal generated by the rotation of the supercharger; identifying the frequencies with maximum amplitude within the frequency content of the sound signal generated by the rotation of the supercharger; recognising the frequencies with maximum amplitude which are each other's multiples or submultiples; and determining the rotation speed of the supercharger using exclusively the frequencies with maximum amplitude which are each other's multiples or submultiples. | 02-02-2012 |
20120024267 | Stored Compressed Air Management for Improved Engine Performance - A method for providing air to a combustion chamber of an engine, the engine including a compressor and a boost tank selectably coupled to an intake manifold. The method includes varying a relative amount of engine exhaust in air pressurized in the boost tank based on engine operating conditions, and discharging the air pressurized in the boost tank to the intake manifold. | 02-02-2012 |
20120067331 | Controlling engine braking loads using cat regeneration system (CRS) - A power system comprising an engine, an intake air system, and an intake air bypass system. The intake air system delivers compressed air to the engine and the intake air bypass system diverts the compressed air away from the engine in response to the operation of an engine brake. | 03-22-2012 |
20120090580 | Controlled-compression direct-power-cycle engine - The present invention provides a controlled-compression direct-power-cycle engine for performing the direct-power-cycle, wherein the air is compressed with three compression processes and cooled to a controlled temperature before ignition, the engine power output is controlled by both the compressor-transmission and the servo-intake-valve; the three compression processes are the initial-compression-process, the intermediate-compression-process, the final-compression-process, wherein, the initial-compression-process is performed by the turbocharger, the intermediate-compressor-process is performed by a screw type compressor, a rotary type compressor, or a scroll type intermediate-compressor, the final-compression-process is performed by the pistons of the combustion chambers; said intermediate-compressor is coupled to the compressor-transmission for adjusting the compression-capacity according to the instruction signals from the engine control unit, which computes the required compression-capacity by the user's power demand and the pressure in the cooling tank; said final-compression-process adjusts the actual-pressure-ratio with the actuation-time of the servo-intake-valve; said servo-intake-valve is opened for 5-60 degree of crankshaft rotation and is shut at a point between 90 degree BTC and 10 degree BTC according to instruction signals from the engine control unit; wherein the compressor-transmission is set to provide a higher airflow and said servo-intake-valve is shut at an earlier crankshaft reference angle to increase the actual-pressure-ratio of the final-compression-process for operating the direct-power-cycle at a high power output, whereas the compressor-transmission is set to provide a lower airflow and said servo-intake-valve is shut at a later crankshaft reference angle to decrease the actual-pressure-ratio of the final-compression-process for operating the direct-power-cycle at a lower power output. | 04-19-2012 |
20120138026 | METHOD OF DIAGNOSING A LOW BOOST IN A DIESEL ENGINE - A method to operate an electronically controlled internal combustion engine to diagnose low boost. In one embodiment, the method may include determining whether changes in at least one engine operating condition has occurred; comparing actual engine boost signal with a predetermined boost signal; maintaining engine operating conditions for a predetermined period of time to ensure stability of boost signal gradient for a first predetermined period of time; determining whether boost signal gradient is stable for a second predetermined period of time; determining boost signal change by comparing stability of actual boost signal with a predetermined boost signal determining whether boost signal is stable; and ceasing boost signal monitoring prior to active boost signal gradient change. | 06-07-2012 |
20120152214 | TURBOCHARGER SYSTEM - This disclosure is directed to a turbocharger arrangement having a high pressure turbocharger and a low pressure turbocharger connected in series. The low pressure turbine has first and second volutes and the arrangement includes a control valve which controls the proportion of exhaust gas which is directed through the first and second passages to the first and second volutes. | 06-21-2012 |
20120240910 | ELECTRICALLY DRIVEN TURBOCHARGER - Rotational speed of an electric turbocharger controlled so that the actual temperature of the motor does exceed the allowable level even over a long time span. A speed control device for the turbocharger, includes a temperature sensor, a speed limitation device which limits the speed of the motor in response to the temperature level detected by the temperature sensor wherein the speed limitation device is provided with a limit control start temperature correction device which decreases the limit control start temperature when the increase rate of the detected temperature exceeds a threshold. A speed limitation setting device sets a speed limit based on the temperature difference between the limit control start temperature and the detected temperature T on a rate of increase of the detected temperature. | 09-27-2012 |
20130092134 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES - A control device for an internal combustion engine. The control device is arranged in a bypass duct between a pressure side and an intake side of a supercharging device. The control device includes a bypass valve comprising a valve-closure body which is configured to be pneumatically actuatable, and a control pressure space. A solenoid valve is configured so that a fluidic connection can be established and closed via the control pressure space between either the pressure side and the intake side or between the pressure side and the atmosphere: When the bypass valve is in a completely open position, the fluidic connection exists at least temporarily via the control pressure space between either the pressure side and the intake side or between the pressure side and the atmosphere. A closure of the fluidic connection brings about a resulting force in a closing direction on the valve-closure body. | 04-18-2013 |
20130098340 | DIVERT AIR VALVE FOR AN INTERNAL COMBUSTION ENGINE - A divert air valve for an internal combustion engine arranged in a bypass channel between a pressure side and a suction side of a supercharging device includes a housing. A bypass valve comprises a first valve closure body. A control pressure chamber is connected with the pressure side through a compensation opening. A solenoid valve comprises a coil body, a magnetic yoke arrangement, an armature, and a second valve closure body which comprises a second spring element and cooperates with the armature. When the solenoid valve is energized and the bypass valve open, a fluidic communication can be established between the pressure side and the suction side or the atmosphere through the control pressure chamber. An overall cross section of the at least one control opening is larger than a cross section of the compensation opening. A closing of the fluidic communication causes a resultant force in a closing direction. | 04-25-2013 |
20130167810 | SYSTEM AND METHOD FOR CONTROLLING PRESSURE RATIO OF A COMPRESSOR - A system for controlling a pressure ratio of an output pressure to an input pressure of a compressor associated with an engine is disclosed. The system includes a controller configured to receive signals indicative of an input pressure associated with a compressor, and receive signals indicative of an output pressure associated with the compressor. The controller is further configured to compare a compressor pressure ratio of the output pressure to the input pressure with a threshold pressure ratio, and control a bypass valve in flow communication with the compressor based on the comparison. | 07-04-2013 |
20130276764 | Valve Device for Controlling the Air Intake for a Compressor of a Vehicle, and Compressor System and Method for Controlling a Compressor System - A valve device controls the air intake for a compressor of a vehicle. The valve device includes a valve housing having a first compressed air inlet for connecting to an ambient air infeed, a second compressed air inlet for connecting to a charge air infeed, through which pre-compressed air can be fed, and a compressed air outlet for connecting to the compressor. The valve device includes a first switched state in which the compressed air outlet is fluidically connected to the first compressed air inlet, and a second switched state in which the compressed air outlet is fluidically connected to the second compressed air inlet. The valve device includes a switching device capable of switching the valve device between the first switched and the second switched state. | 10-24-2013 |
20140026871 | Supercharger Control Device - A supercharger control device that enables the driver of a supercharged vehicle to secure the supercharger with a keyed or other type of switch is disclosed. The supercharger control device can leave the supercharged vehicle with a significant reduction in power, making the supercharged vehicle safer overall. The supercharger control device comprises a check valve and a solenoid valve in parallel configuration with the check valve. The check valve is positioned in-line between a vacuum source and an actuator of a supercharger. The check valve maintains vacuum to the actuator of the supercharger, keeping the supercharger off-line. The solenoid valve is normally in a closed position and is in parallel communication with the check valve. Thus, when the solenoid valve is in an open position, the check valve is bypassed, restoring power to the supercharger. Further, the solenoid valve is typically activated by a switch. | 01-30-2014 |
20140158097 | SUPERCHARGED ENGINE AND METHOD OF CONTROL - Methods and systems for minimizing the power consumed by a supercharger pump in an engine system. The methods and systems minimize the delta pressure across the pump with a control strategy for positioning the electronic throttle and supercharger bypass valve in a coordinated manner to deliver the required amount of fresh air flow into engine (i.e., the air flow associated with the driver's requested torque), while, at the same time, minimizing the power consumed by the supercharger pump for best fuel economy. | 06-12-2014 |
20140182564 | Method of Using a Bypass Valve - A method of controlling a pump ( | 07-03-2014 |
20140209071 | SUPERCHARGER AIR FLOW DIVERTER - A supercharger system includes a supercharger main housing enclosing one or more active components for moving air from an upstream side to a downstream side of the supercharger main housing. The system includes a supercharger inlet housing mounted at the upstream side of the supercharger main housing and a re-circulation line. The re-circulation line provides fluid communication between the downstream side of the supercharger main housing and the supercharger inlet housing. The line includes a flow diverter having first and second portions within the supercharger inlet housing. The first portion defines a first re-circulation flow direction and the second portion defines a second re-circulation flow direction. The second direction may be 45-135 degrees relative to the first recirculation direction. | 07-31-2014 |
20140290630 | METHOD FOR PURGING CHARGE AIR COOLER CONDENSATE DURING A COMPRESSOR BYPASS VALVE EVENT - Methods and systems are provided for draining condensate from a charge air cooler during a compressor bypass valve event. In one example, an engine controller may open a drain valve in the charge air cooler in response to potential compressor surge conditions. Opening the drain valve may be further based on an amount of condensate in the charge air cooler and a required decrease in pressure at an outlet of the compressor during the compressor bypass valve event. | 10-02-2014 |
20150122234 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE EQUIPPED WITH SUPERCHARGER - An object of the present invention is to detect abnormality of a supercharging pressure sensor accurately in an internal combustion engine equipped with a supercharger that can change a supercharging pressure by operation of an actuator. For this purpose, a control device according to the present invention operates an actuator so that a supercharging pressure measured by a supercharging pressure sensor becomes a target supercharging pressure, acquires a measured value of a flow rate of air flowing in an intake passage, and calculates an estimated supercharging pressure based on the measured air flow rate. The control device according to the present invention sets a first abnormality flag when a first simultaneous inequality is established, which is a simultaneous inequality evaluating magnitude correlation between the measured supercharging pressure, the target supercharging pressure and the estimated supercharging pressure, and is not established when the supercharging pressure sensor is normal. As a result that the first abnormality flag is set, it can be known that abnormality occurs to the supercharging pressure sensor. | 05-07-2015 |
20150144114 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - An object of the present invention is to enable monitoring whether a target throttle opening degree to be given to an electronically controlled throttle is not out of an appropriate range, in a controller for an internal combustion engine with a supercharger. To this end, in a controller according to the present invention, propriety of the target throttle opening degree is confirmed with a reference throttle opening degree as a reference by a monitoring device. The target throttle opening degree is calculated based on a target intake air quantity and a measured value or an estimated value of a supercharging pressure by using an inverse model of an air model expressing a dynamic relation that is established among the supercharging pressure, a throttle opening degree and an intake air quantity, by a first arithmetic unit. The reference throttle opening degree is calculated based on the target intake air quantity and a measured value or an estimated value of an atmospheric pressure by using a relational expression that is established between the intake air quantity and an intake pipe pressure in a steady state, and a relational expression that is established among a throttle upstream pressure, the intake pipe pressure and a throttle flow rate in a steady state, by a second arithmetic unit. | 05-28-2015 |
20150308328 | ELECTRIC MASS AIRFLOW TURBINE CONTROL SYSTEM - A system is disclosed for monitoring and controlling the air intake of combustion motor with a forced air turbine electronically coupled thereto for the purposes of controlling the same. A processor electrically linked to the forced air turbine electric motor controller and configured with defined parameters to correlate forced air turbine instructions with engine and intake air pressure conditions. The system includes sensors electrically coupled to the forced air turbine electric motor controller configured to send information from the air intake, forced air turbine, throttle position and other conditions of the engine coupled thereto. The forced air turbine electric motor controller is configured to control the air intake based upon the input received from the various sensors as compared to the data contained in the processor. The system provides turbine speed control to the mass of intake air. | 10-29-2015 |
20150315960 | METHOD FOR CONTROLLING A DUAL-SUPERCHARGED COMBUSTION ENGINE - The invention relates to a combustion engine equipped with a dual supercharging system in which a mechanical compressor is driven by an electric motor. The method controls a combustion engine with the electric motor being controlled by determining a rotational speed setpoint for positive-displacement compressor using a supercharge volume filling model. | 11-05-2015 |
20150345379 | METHOD OF OPERATING A SUPERCHARGER - A method of operating a supercharger ( | 12-03-2015 |
20150377194 | INTERNAL-COMBUSTION-ENGINE SUPERCHARGER - An internal-combustion-engine supercharger includes a centrifugal compressor, a pre-compression flow path, a post-compression flow path, a bypass passage, and a control valve. The centrifugal compressor is disposed in an intake passage of an internal combustion engine and has an impeller to compress and discharge intake air using a radial centrifugal force generated by rotating the impeller. The intake air in the post-compression flow path is to be recirculated to the pre-compression flow path via the bypass passage. A connecting portion between the bypass passage and the pre-compression flow path is disposed at a position other than an extreme-bottom surface portion located at a lowest portion in a flow path section of the pre-compression flow path in a state where the internal-combustion-engine supercharger is installed in a vehicle. The control valve is disposed in the bypass passage to control a recirculation flow rate of the intake air. | 12-31-2015 |
20160010572 | SUPERCHARGING SYSTEM AND DIAGNOSTIC METHOD FOR SUPERCHARGING SYSTEM | 01-14-2016 |
20160084176 | CONTROL DEVICE AND CONTROL METHOD FOR AN INTERNAL COMBUSTION ENGINE WITH A SUPERCHARGER - In a control device and method for an internal combustion engine with a supercharger, a first/second temperature sensor and a first/second air pressure sensor are respectively provided on an upstream/downstream side of a supercharging path from a compressor to a throttle valve. A control portion calculates an inflow air mass to the supercharging path and an outflow air mass from the supercharging path, calculates a throttle upstream air mass in a high operational load state from those air masses, calculates a throttle upstream air mass in a low operational load state from outputs of the first temperature sensor and the first air pressure sensor, selects either one of the throttle upstream air masses depending on an operational load state of the engine, and calculates a throttle upstream pressure based on the upstream air mass selected and a second temperature detected by the second temperature sensor. | 03-24-2016 |
20160160771 | ENERGY BALANCE BASED BOOST CONTROL USING FEEDBACK LINEARIZATION - An internal combustion engine includes an air charging system with a boost air system. A method to control the boost air in the air charging system, decoupled from the air and EGR system controls, includes monitoring a reference boost pressure and operating parameters of the air charging system; creating a turbocharger energy balance model of the air charging system; applying feedback linearization control to the turbocharger energy balance model to create an approximately linearized feedback system; and determining a boost control command for the air charging system using the approximately linearized feedback system based on the monitored reference boost pressure and the monitored operating parameters of the air charging system. The boost air in the air charging system is controlled based upon the boost control command. | 06-09-2016 |
20160177892 | VALVE FOR REGENERATION IN TURBOCHARGER OPERATION | 06-23-2016 |
20160201584 | METHODS AND SYSTEMS FOR SURGE CONTROL | 07-14-2016 |