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Document Title |
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7589948 |
Method for actuating an electromagnetic valve
A method for is provided actuating at least one electromagnetic valve containing at least one coil, which can be excited by an excitation current, and an armature, in which the excitation current...
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7558043 |
Amperage control for valves
An amperage control for an electrically operated valve having a coil. A process control apparatus generates a plurality of electrical operating data signals, each signal corresponding to an...
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7546830 |
Injector drive device and injector drive system
An injector drive device includes a power supply unit that is supplied with power from a battery mounted in a vehicle and generates a voltage higher than the voltage of the battery, and EDU having...
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7542262 |
Apparatus for driving an electromagnetic load
The present invention refers to an apparatus for driving an electromagnetic load. The apparatus comprises a power stage comprising at least one first and one second transistor half-bridge and the...
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7527040 |
Fuel injection performance enhancing controller
An auxiliary electronic fuel injection control apparatus for enhancing engine performance includes an isolation circuit connectable to a main control switch having an output voltage pulse and a...
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7508645 |
Method and apparatus for operating a magnetic actuator in a power switching device
A method and apparatus for operating a magnetic actuator in a power switching device by transmitting at least two different electrical current waveforms to the actuator. Both waveforms are sent to...
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7471496 |
Solenoid driving apparatus
A solenoid driving apparatus that drives a solenoid by intermittently supplying an exciting current comprises a first current switching element turned ON and OFF so as to switchably allow and block...
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7423857 |
Current detecting circuit and actuator driving apparatus
By switching the NMOS ( 11 ) on and off, a drive current passes through a solenoid ( 15 ). The drive current passes through a conversion circuit ( 16 ), and an amplifier circuit ( 17 ) outputs a...
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7405917 |
Method and apparatus for monitoring and determining the functional status of an electromagnetic valve
The present invention provides a method and apparatus for determining the functional status of an electromagnetic valve having a solenoid and plunger including determining the electro-mechanical...
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7403366 |
Control circuit for an electromagnetic drive
A control circuit for an electromagnetic drive includes first and second electronic switching elements, which in conjunction with a timing element subject the drive coil to a corresponding direct...
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7401595 |
Fuel injection device for internal combustion engine
A fuel injection device for an internal combustion engine including: an injector that injects fuel to be supplied to the internal combustion engine; a battery to which a DC converter that charges a...
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7389968 |
Proportional solenoid valve control device
In a proportional solenoid valve control device, a mode selecting switch has an auto-mode position for sending a control signal from a level converting section to a driving signal amplifying...
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7359175 |
Relay drive circuit
A potential of an end of the coil is inputted to a plate-OFF detecting portion which detects OFF-tendency in which a plate of a relay is about to get apart from a head of a core of the relay. When...
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7349192 |
Method of operating a device for controlling electric actuators with optimum actuation current distribution
There is described a method of operating a device ( 1 ) controlling electric actuators ( 3 ), and having a pair of input terminals ( 4, 5 ) connected to an electric energy source ( 6, 10 ); a...
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7336470 |
Solenoid drive apparatus and drive method
A solenoid ( 30 ) has one end connected to the ground G and the other end connected to an N-MOS transistor ( 33 ) which applies current from a battery ( 31 ) to the solenoid ( 30 ). On the other...
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7307397 |
Driving unit
A driving unit of the present invention comprises a moving element, an elastic body configured to support the moving element, a permanent magnet fixed on said moving element, an electromagnet...
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7262950 |
Relay device having holding current stabilizing and limiting circuit
A relay device includes plural relay units, each having a coil for opening/closing a contact point, a base plate made of resin and having wiring metal pieces, and a control circuit mounted on the...
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7248453 |
Circuit and method for controlling current flow through a solenoid
A solenoid control circuit that includes two switching networks that are selectively opened and closed in a current limit cycle to control the magnitude of the current flowing through the solenoid....
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7246600 |
Control device for internal combustion engine
An ECU executes a program including the steps of: calculating a base timing of injection (INJB); determining whether an engine knocks; if the engine knocks, increasing a correction value INJK(I)...
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7242567 |
Actuator drive controller
An actuator drive controller is equipped with a power source for supplying power to an actuator; a voltage detector for detecting a voltage of the power source; and a controller for controlling a...
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7235936 |
Linear vibration motor
A linear vibration motor comprises: a stator provided with one of a permanent magnet and an electromagnet including a winding; a vibrator provided with the other of the permanent magnet and the...
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7233478 |
Method and apparatus for protecting a solenoid and its driving circuit in an electronic device
A circuit for protecting a solenoid and/or receipt printer in an electronic device, such as a point-of-sale terminal, includes a resistance and a capacitance. The resistance is electrically coupled...
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7233476 |
Actuator thermal protection in haptic feedback devices
Method and apparatus for providing thermal protection for actuators used in haptic feedback interface devices. An average energy in the actuator over a predetermined period of time is determined,...
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7209338 |
Active vibration insulator
An active vibration insulator includes an electromagnetic actuator, a cyclic-control-signals output device, and an electromagnetic-actuator driver. The electromagnetic-actuator driver includes an...
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7206180 |
Method for regulating the current through an electromagnetic actuator
A method for regulating the current through an electromagnetic actuator. The actuator, a first switch and a current-measuring circuit form a series circuit. A free-wheeling diode is...
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7158361 |
Method and apparatus for regulating a current through an inductive load
The invention relates to a method and an apparatus for regulating a current through an inductive load, which can be connected to a power supply, to a prescribed nominal current value, where the...
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7131429 |
Method for controlling an injection valve of an internal combustion engine
A method for controlling an injection valve of an internal combustion engine, in particular a piezo-injector during the start-up phase of the internal combustion engine, in particular a common-rail...
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7131428 |
Method for controlling fuel injection in an internal-combustion engine
A method is provided for controlling fuel injection in an internal-combustion engine provided with an electroinjector, including an electroactuator, an injection nozzle, and a pin, which is movable...
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7126295 |
Stopping noise reduction circuit for start motor using resistor
A stopping noise reduction circuit for a start motor comprises a battery generating a power supply to drive the start motor, a key switch for controlling an on/off of the power supply, a solenoid...
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7124742 |
Supplemental fuel injector trigger circuit
A Supplemental Fuel Injector Control Circuit includes a resistor adapted to connected between a voltage output port and an injector control port of an Engine Control Unit. The circuit also includes...
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7124741 |
Method for controlling an injector with verification that plunger movement has occurred
A method for controlling an injector with verification that plunger movement has occurred; the method providing application of a time-variable voltage to the terminals of an injector drive circuit...
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7116542 |
Micro-switches for downhole use
A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group...
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7116541 |
Method and apparatus for reducing the switching noise of an electromagnetic switching device
In order to achieve a reduction in the switching noise during operation of an electromagnetic switching device with little complexity, a coil for moving an armature with moving switching contacts...
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7107976 |
Inductive load powering arrangement
An inductive load powering arrangement ( 20 ) utilizes current monitoring on only one side of the load ( 22 ) which in one example is a fuel injector coil. In disclosed examples, a high side driver...
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7099136 |
State space control of solenoids
A system and method for state space control of solenoids, particularly engine valve solenoids with two latching positions. A collection of trajectories are computed or measured, having low-impact...
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7095599 |
Fuel injector and its control method
When voltage changes occur in the battery used as a power supply in a fuel injection system, the amount of fuel injection also changes and the required amount of fuel injected cannot be obtained....
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7089915 |
Method and device for controlling an electromagnetic consumer
A device and a method are described for controlling an electromagnetic user, especially a magnetic valve for influencing the fuel quantity to be injected into an internal combustion engine. At...
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7073524 |
Fail safe drive for control of multiple solenoid coils
A fail-safe apparatus for controlling fluid flow through a series arrangement of first and second solenoid-controlled valves is provided. The fail-safe apparatus includes fail-safe circuitry for...
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7072164 |
Electric parts drive circuit
An electric parts drive circuit has: a first field-effect transistor including in parallel a first parasitic diode and provided between the plus line and an electric part; a second field-effect...
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7054128 |
Control apparatus for electromagnetically driven valve and control method of the same
A control apparatus for an electromagnetically driven valve is provided which is applied to an electromagnetically driven valve in which a movable portion including an armature and a valve element...
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7042692 |
Electromagnetic apparatus drive apparatus
Conventionally, a non-conductive period is provided in a region in the vicinity of zero of an AC power voltage via a voltage detection circuit 14 to turn off reliably. The FET 17 maintains the...
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7021072 |
Current control loop for actuator and method
Systems and methods for providing a current control loop for an actuator. A typical system includes a current command controller setting a command current, the current command controller being...
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7004128 |
Control apparatus for device having dead band, and variable valve system
A control unit employed in a variable valve timing apparatus vibrates a control signal for controlling an oil-pressure control valve. If the vibration center of the duty value of the control signal...
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7000599 |
Supplemental fuel injector trigger circuit
A Supplemental Fuel Injector Control Circuit includes a resistor adapted to connected between a voltage output port and an injector control port of an Engine Control Unit. The circuit also includes...
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6924965 |
Electro magnetically-operated device, and a method of operating the same
An electromagnetically operated device has an electromagnet including a magnetic guide having a movable armature and at least one air gap, a magnetizing coil provided on the magnetic guide, the...
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6909427 |
Load adaptive column driver
A column driver system and method for driving a plurality of column drivers in an active matrix display. The system comprises: a register in each column driver for holding a pixel value; a system...
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6879480 |
Brake transmission shift interlock and park lock system
A Brake Transmission Shift Interlock and Park Lock System having a shift lever, electromagnetic device, and blocking member operating with reverse logic. The system includes disabling means for...
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6865064 |
Drive apparatus and drive method for electromagnetic drive actuator
A drive apparatus for an electromagnetic drive type actuator, which includes a movable element, a fixed element, a connection element, a magnetic field generation element, and a drive coil, such...
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6853530 |
Apparatus and method for actuating a mechanical device
An integrated module encased in protective housing is electrically and mechanically connected to a solenoid, which remotely actuates an Automatic Transfer Switch (ATS) or lighting contactor. The...
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6850139 |
System for writing magnetic scales
The invention relates to a system for pulse magnetizing high-precision magnetic scales. The system comprises a shaped current conductor ( 1 ) and a pulse current source ( 2 ) that is composed of a...
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