Abstract:
A system and method for controlling an engine idling speed for an internal combustion engine are disclosed in which during the setting of a differential control value ISC.sub.d based on a variation speed in an actual engine revolution speed Ne, an accumulation of the differential control value ISC.sub.d is carried out. The final accumulated value Ds of the differential portion ISC.sub.d is held from a time at which ISC.sub.d =O to a time at which a predetermined period of time T has passed, the predetermined period of time T being previously set according to a response characteristic of an idling control valve. A stepping motor is used for the idling control valve located in an auxiliary intake air passage bypassing an engine throttle valve. The integration control value ISC.sub.i is updated so that the value which accords with the final accumulated value Ds is added to an integration control value ISC.sub.i. Thus, a feedback control of the engine idling speed according to the PID (proportional-integration-differential) control is sufficiently carried out.
Abstract:
Disclosed herein is an amorphous C12A7 electride thin film which has an electron density of greater than or equal to 2.0×1018 cm−3 and less than or equal to 2.3×1021 cm−3, and exhibits a light absorption at a photon energy position of 4.6 eV. Also disclosed herein is an amorphous thin film which is fabricated using a target made of a crystalline C12A7 electride, and containing an electride of an amorphous solid material includig calcium, aluminum, and oxygen, in which an Al/Ca molar ratio of the thin film is 0.5 to 4.7.
Abstract:
The present invention relates to a control device design method for a control device that determines a manipulation amount of a control object having a dead time by feedback control so as to bring a control amount of the control object closer to a target value. The method according to the present invention includes a step of designing a feedback loop that computes a correction amount for the manipulation amount using a plurality of controllers including a prediction model of the control object, a step of deriving the same number of delay elements as the plurality of controllers from a dead time element of the prediction model, and a step of allocating the plurality of controllers associated with the delay elements to a plurality of arithmetic units so that the computation of the feedback loop is performed by parallel computation by the plurality of arithmetic units that operate in parallel.
Abstract:
A plurality of lattice points arranged in a three-dimensional Cartesian coordinate system that takes first, second and third operating conditions as axes are associated in a one-to-one relationship with at least some of a plurality of cores arranged in a lattice shape in a multi-core processor, and a calculation program for calculating a control value at the associated lattice points is allocated to the cores. Each core with which a lattice point is associated is configured so that, in a case where an operation space on the three-dimensional Cartesian coordinate system to which a current operating point belongs is a space defined by eight adjacent lattice points including a lattice point associated with the relevant core, the relevant core calculates a control value at the lattice point associated therewith by means of the calculation program and sends the control value to an interpolation calculation core, and if the operation space is not defined by the eight adjacent lattice points, the relevant core suspends calculation of the control value. The interpolation calculation core performs an interpolation calculation to calculate a control value at the current operating point using control values at the eight adjacent lattice points surrounding the current operating point. The multi-core processor outputs a control value at the current operating point that is obtained by the interpolation calculation core as a control target value of an actuator.
Abstract:
The invention provides an application technique of a backup data in which a backup data can be utilized by creating a backup data including no indeterminate data in a backup system. In a backup system including a primary system and a backup system, the method of creating the backup data includes: a data update record rerun step for rerunning a data update record to a backup data; and a backup data creation step for starting a read to a backup data B, stopping a read to a backup data A, copying the backup data to the backup data A, starting the read to the backup data A, stopping the read to the backup data B, and copying the backup data A to the backup data B.
Abstract:
The present invention relates to a mayenite-type compound in which a part of Ca of a mayenite-type compound containing Ca, Al and oxygen is substituted by at least one kind of an atom M selected from the group consisting of Be, Mg and Sr, in which the mayenite-type compound has an atom number ratio represented by M/(Ca+M) of from 0.01 to 0.50, and at least a part of free oxygen ions in a mayenite-type crystal structure are substituted by anions of an atom having electron affinity smaller than that of an oxygen atom.
Abstract:
Provided is a failure recovery method for switching to a standby system if a failure occurs in an active system, which allows reduction of loads on the standby system and a network. A computer system, which receives data to which timestamp information is appended in a chronological order and processes the received data by registered queries, includes the active system for processing the received data and the standby system for processing the received data instead of the active system upon occurrence of a failure. The active system processes the received data by the respective queries according to a predefined sequence, and transmits results obtained from the received data by the respective queries to the standby system as intermediate data on a query basis at a predetermined timing. The standby system restores the data by processing the received data and the intermediate data if a failure occurs in the active system.
Abstract:
A plurality of reference signals output from a controller which computes an operation amount of an electric actuator is subjected to the logical operation, and the power supply to a drive circuit for the electric actuator is shut off based on an output by the logical operation.
Abstract:
A computer for the stream data processing system includes a query recovery point management table. A recovery point management section determines a recovery point for the stream data processing system by identifying an oldest one of input tuples used for generating output tuples, which are managed, or an earlier tuple through the use of a query recovery point stored in the query recovery point management table, and transmits the determined recovery point for the stream data processing system to an additional computer. The additional computer stores the last-received recovery point for the stream data processing system in a checkpoint file. When the computer for the stream data processing system recovers from a fault, the additional computer transmits the data succeeding the stored recovery point to the computer for the stream data processing system.
Abstract:
In the negative pressure booster, when in operation, a reaction disc (35) deflects due to the reaction from an output shaft (34) and pushes a pin (28) backward, and the pin (28) pushes a vacuum valve seat member (21) backward via an arm (25). Thereafter, the vacuum valve seat member (21) pushes up a valve body (15) backward via a vacuum valve portion (17), and an atmosphere valve portion (16) moves backward relative to a valve body (4). The stroke of an input shaft (11) is shortened by an amount an atmosphere valve (20) and a vacuum valve (23) have moved backward. As the valve body (15) is pushed up backward, further, a balance position for the atmosphere valve (20) and the vacuum valve (23) shifts backward depending upon the output (input). Therefore, the stroke of the input member is shortened at the time of producing a large output.