131results about How to "Continuous control" patented technology

A gas supply facility includes a plurality of pressure type flow controllers connected in parallel, and a first controller to control operation of the plurality of pressure type flow controllers so as to supply a desired gas exhausted by a vacuum pump to a chamber while controlling its flow rate, one of the pressure type flow controllers operates as a second controller to control the gas flow rate range up to 10% of the maximum flow rate supplied to the chamber, while the remaining pressure type flow controllers are made to be ones that control the rest of the gas flow rate range. Furthermore, pressure inside the chamber is controlled by installing a pressure detector in the chamber, inputting the value detected by the detector to the controller, and by adjusting a control signal to the pressure type flow controllers.

A noninvasive brain computer interface (BCI) system includes an electroencephalography (EEG) electrode array configured to acquire EEG signals generated by a subject. The subject observes movement of a stimulus. A computer is coupled to the EEG electrode array and configured to collected and process the acquired EEG signals. A decoding algorithm is used that analyzes low-frequency (delta band) brain waves in the time domain to continuously decode neural activity associated with the observed movement.

Optical sensor measurement methods that convert a wavelength change in an optical sensor to a measurable optical intensity change, which can be calibrated and used to measure optical wavelength change and environmental changes such as temperature or strain which affect sensor wavelength. The current invention makes use of tunable fiber Fabry-Perot filters as the wavelength selective elements for the wavelength to optical intensity conversion. The invention provides high measurement sensitivities to small amplitude, high frequency modulations to the fiber sensor center wavelength, accommodates for system drift from thermal or other perturbations, and enables either frequency mode or time varying resolution of sensor modulation events. Selection of proper Fabry-Perot optics allow for measurement optimization of either high sensitivity or high strain measurement range.

A light wavelength converting apparatus includes a semiconductor laser having a gain region, a phase region, and a distributed Bragg reflection (DBR) region, a nonlinear optical device for receiving fundamental-wave light emitted from the semiconductor laser and outputting second harmonic wave light, a first optical detector for monitoring an output of the fundamental-wave light, a second optical detector for monitoring the second harmonic wave light, and a control portion for controlling at least a drive current for driving the semiconductor laser. The control portion includes a control parameter determiner, and a wavelength controller. The control parameter determiner changes a DBR current supplied to the DBR region and a phase current supplied to the phase region to obtain a changing point that corresponds to a discontinuous change in an electrical signal from the first optical detector, and determines a control parameter for controlling the DBR current and the phase current such that the relationship between the DBR current and the phase current is not located on the changing point. The wavelength controller controls the DBR current and the phase current pursuant to the control parameter such that an oscillation wavelength of the semiconductor laser can be continuously controlled.

A fuel injection control device (ECU) for controlling injection supply of fuel to an engine is applied to an injector that has a valve body formed with a fuel injection hole, a needle accommodated in the valve body for opening and closing the injection hole, and a piezoelectric element for driving the needle such that the needle reciprocates and that can continuously adjust an injection rate in accordance with an injection command signal to the piezoelectric element. The fuel injection control device senses a fuel pressure waveform indicating a transition of fuel pressure fluctuation accompanying a predetermined injection of the injector based on an output of a fuel pressure sensor and calculates an injection command signal for approximating a predetermined injection parameter concerning the predetermined injection to a reference value of the parameter based on the sensed fuel pressure waveform.

A modular junction box receptacle includes parallel high and low voltage circuitry portions separated by a barrier. A base housing of the receptacle receives a termination block that includes high and low voltage connections to respective high and low voltage portions of the base housing. A housing cover is installed over the base housing and termination block; the cover has an opening for passage thereinto of a face portion of the block. The receptacle accommodates a plug and play unit containing smart circuitry, the unit including high and low voltage circuitry connections for respective high and low voltage portions of the termination block. The unit can act as a variety of interchangeable devices in a smart system that incorporates pluralities of receptacles, including electrical outlets and simple electrical toggle switches, each containing low voltage connections. A plurality of such units may be incorporated in, for example, a household circuitry system.

Vibration damper includes a cylinder filled with a damping medium in which a piston rod with a piston is guided in an axially movable manner, wherein the piston divides the cylinder into a work space on the piston rod side and a work space remote of the piston rod. A bypass connects at least one of the two work spaces with a first work chamber in a housing in which an axially movable separating piston separates the first work chamber from a second work chamber, the bypass being controlled by a switchable valve.

A method for distributing content over a network by providing a predetermined electronic contract for distributing the content between a retailer and a distributor, wherein terms of the contract are independent of the content and the retailer distributes the content to a consumer and the distributor has rights in the content. A step of presenting a candidate retail offer for the distribution of the content to the consumer and receiving a request from the consumer to exercise the candidate retail offer. Finally, validating the candidate retail offer for the distribution of the content by accessing the electronic contract and determining if the candidate retail offer is consistent with the electronic contract. Upon successful validation, providing the content to the consumer, receiving compensation information from the consumer indicating at least the amount of compensation for the content provided and allocating the compensation according to the electronic contract.

An apparatus for controlling an automotive vehicle having a drive power source, a transmission having a plurality of operating positions that are selectively established, and a manually operable vehicle accelerating member, the apparatus including a target-drive-force setting portion operable to determine a target vehicle drive force on the basis of an operating amount of the accelerating member and a presently selected one of the positions of the transmission, such that the determined target vehicle drive force permits a smooth change of an actual vehicle drive force with a change of the operating amount of the vehicle accelerating member, irrespective of a shifting action of the transmission, a first controlling portion having a relatively high operating response and operable to effect a transient control of a torque of the drive power source so that the actual vehicle drive force coincides with the target vehicle drive force after the shifting action of the transmission, and a second controlling portion having lower operating response than the first controlling portion but is capable of continuously controlling the torque of the drive power source, the second controlling portion being operable to effect a continuous control of the torque of the drive power source following the transient control by the first controlling portion, so that the actual vehicle drive force coincides with said target vehicle drive force after the shifting action of the transmission.

The invention proposes a hoisting-cable drive for a mobile crane, which hoisting-cable drive uses a single bottom-hook block (15) instead of a known double bottom-hook block. However, to prevent this single bottom-hook block (15) from tilting in the two cable lines (9, 10), for example due to possible variations in the elongation of the two cable drives, the hoisting-cable drive according to the invention comprises a kinematic force equilibrium device (17, 21), which can equalize such differences. To this effect, another embodiment of the hoisting-cable drive according to the invention uses a hoisting-cable load pickup (21) within each cable line arrangement so that the rotary speed of the winches (7, 8) can be varied, taking into account any load differences in the individual hoisting-cable lines (9, 10). Furthermore, the invention also proposes that the rotary speed of the winches (7, 8) be adjusted, taking into account the geometric winch states and crane states.

The invention relates to a swimming pool heating system, characterized in that it comprises a heat pump and means for controlling the compressor of said heat pump according to a number of non-zero power levels, as a function of a predetermined set of parameters. The system comprises, for example, three power levels, the first level being close to 40% of the compressor speed, the second level being close to 70% of the compressor speed, and the third level being close to 100% of the maximum compressor speed.

An apparatus for controlling an automotive vehicle including a target-drive-force setting portion operable to determine a target vehicle drive force, such that the determined target vehicle drive force permits a smooth change of an actual vehicle drive force with a change of the operating amount of the vehicle accelerating member, irrespective of a shifting action of the transmission, a first controlling portion having a relatively high operating response and operable to effect a transient control of a torque of the drive power source, and a second controlling portion having lower operating response than the first controlling portion but is capable of continuously controlling the torque of the drive power source, the second controlling portion being operable to effect a continuous control of the torque of the drive power source following the transient control by the first controlling portion, so that the actual vehicle drive force coincides with said target vehicle drive force after the shifting action of the transmission.

A ceramic device has an actuator element which includes a shape-retaining layer, an upper electrode formed on an upper portion of the shape-retaining layer, and a lower electrode formed on a lower portion of the shape-retaining layer; a vibrating section of ceramics which supports the actuator element; and a fixed section of ceramics which vibratingly supports the vibrating section. An electrode material of the lower electrode contacting the vibrating section contains an additive in an amount of 0.01% by weight to 20% by weight. The electrode material contains platinum as a major component, for example. The additive such as zirconium oxide, cerium oxide, or titanium oxide is preferably used.

A valve train device is provided for swinging a rocker arm, which is pivotally disposed on a rocker arm support shaft. The device comprises a drive device for driving the rocker arm, an intermediate member disposed between the drive device and the rocker arm and configured to transfer movement of the drive device to the rocker arm, and a displacement device. The displacement device is configured to displace a contact point between the rocker arm and the intermediate member to continuously adjust at least one of the valve opening duration and valve lift.

A valve train device is provided for swinging a rocker arm, which is pivotally disposed on a rocker arm support shaft. The device comprises a drive device for driving the rocker arm, an intermediate member disposed between the drive device and the rocker arm and configured to transfer movement of the drive device to the rocker arm, and a displacement device. The displacement device is configured to displace a contact point between the rocker arm and the intermediate member to continuously adjust at least one of the valve opening duration and valve lift.

A noninvasive brain computer interface (BCI) system includes an electroencephalography (EEG) electrode array configured to acquire EEG signals generated by a subject. The subject observes movement of a stimulus. A computer is coupled to the EEG electrode array and configured to collected and process the acquired EEG signals. A decoding algorithm is used that analyzes low-frequency (delta band) brain waves in the time domain to continuously decode neural activity associated with the observed movement.