Patent application number | Description | Published |
20090145109 | Catalyst degradation diagnosis device and diagnosis method for internal combustion engine - The oxygen storage capacity preceding a previous oxygen storage capacity and the previous oxygen storage capacity of each of an upstream catalyst and a downstream catalyst are measured, and a present oxygen storage capacity of the downstream catalyst is measured. Then, sulfur poisoning of the upstream catalyst and the downstream catalyst is detected on the basis of an oxygen storage capacity change amount of each of the upstream catalyst and the downstream catalyst from the oxygen storage capacity preceding the previous one to the previous oxygen storage capacity, and the oxygen storage capacity change amount of the downstream catalyst from the previous oxygen storage capacity to the present oxygen storage capacity. The presence/absence of the sulfur poisoning can be accurately detected by utilizing the difference between the manners of sulfur poisoning of the two catalysts. | 06-11-2009 |
20100211290 | ABNORMALITY DIAGNOSTIC DEVICE AND ABNORMALITY DIAGNOSTIC METHOD FOR MULTICYLINDER INTERNAL COMBUSTION ENGINE - A fuel injection amount from fuel injection valves is actively controlled and an input air-fuel ratio is caused forcibly to oscillate. A system from the fuel injection valves to the air-fuel ratio sensor is simulated by a first order delay system, and a gain and time constant are identified on the basis of the input air-fuel ratio relating to the model and an output air-fuel ratio obtained from the air-fuel ratio sensor. The presence of an air-fuel ratio abnormal variation is diagnosed on the basis of whether or not the identified values of the gain and the time constant are less than a first and second predetermined values respectively. | 08-19-2010 |
20100307135 | APPARATUS AND METHOD FOR DIAGNOSING CATALYST DETERIORATION - A catalyst deterioration diagnosing apparatus is provided with means for performing stoichiometric feedback control on the air-fuel ratio based on at least output from an upstream air-fuel ratio sensor provided upstream of a catalyst, means for measuring the oxygen storage capacity of the catalyst, and means for correcting the measured value of the oxygen storage capacity based on at least the output behavior of a downstream air-fuel ratio sensor provided downstream of the catalyst during the stoichiometric feedback control. The measured value of the oxygen storage capacity is corrected using the output behavior of the downstream air-fuel ratio sensor during stoichiometric feedback control. The diagnostic is performed after eliminating the effects from sulfur by correcting the measured value to a value corresponding to when low sulfur fuel is used, which makes it possible to prevent an erroneous diagnosis from being made. | 12-09-2010 |
20110005207 | CONTROL DEVICE - A control device applied to a system having an engine configured such that an expansion ratio can be changed is characterized to comprise an expansion ratio acquisition part for acquiring the expansion ratio, and a temperature estimation part for estimating a temperature of an exhaust gas discharged from the engine or a member positioned in a passage for the exhaust gas. | 01-13-2011 |
20110290217 | ENGINE SYSTEM CONTROL DEVICE - The present invention provides an engine system control device to be applied to an engine system provided with an engine having a variable compression ratio mechanism capable of changing a compression ratio. In the case where generation of failure in a compression ratio control system is detected, determination of a state of a member placed in an intake and exhaust system of the engine is inhibited. | 12-01-2011 |
20120160022 | APPARATUS FOR DETERMINING AN AIR-FUEL RATIO IMBALANCE AMONG CYLINDERS OF AN INTERNAL COMBUSTION ENGINE - An air-fuel ratio imbalance among cylinders determining apparatus according to the present invention is applied to a multi-cylinder internal combustion engine in which a compression ratio is variable. The determining apparatus obtains, using at least an output value of an upstream air-fuel ratio sensor disposed for a catalyst, an “imbalance determining parameter” which becomes larger as a degree of an imbalance among “individual cylinder air-fuel ratios” becomes larger, each of the individual cylinder air-fuel ratios being an air-fuel ratio of a mixture supplied to each of cylinders. Further, the determining apparatus determines that an air-fuel ratio imbalance state among cylinders is occurring, when the imbalance determining parameter is larger than a predetermined threshold. The determining apparatus changes the predetermined threshold in accordance with a mechanical compression ratio of the engine. | 06-28-2012 |
20130080033 | CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine performs rich control when a fuel cutoff operation is terminated and fuel supply to a combustion chamber is restarted, and the engine includes a plurality of the combustion chambers and a fuel supply cycle is repeated. The control device includes a controller configured to set a first moment and a second moment such that the fuel supply cycle which includes the first moment is different from the fuel supply cycle which includes the second moment, the first moment being a moment at which the rich control is started in a first combustion chamber of the plurality of combustion chambers, and the second moment being a moment at which the rich control is started in a second combustion chamber of the plurality of combustion chambers that is different from the first combustion chamber. | 03-28-2013 |
20130269324 | AIR-FUEL RATIO CONTROL APPARATUS - An air-fuel ratio control apparatus of the present invention includes a determination section and a reverse direction correction introducing section. The determination section determines whether or not an output of the downstream air-fuel ratio sensor falls within a predetermined range whose center corresponds to a target value corresponding to the stoichiometric air-fuel ratio. When the output of the downstream air-fuel ratio sensor falls within the predetermined range, the reverse direction correction introducing section temporarily introduces, to an air-fuel ratio correction in a direction requested by the output, an air-fuel ratio correction in a direction opposite to the requested direction. | 10-17-2013 |
20130333358 | CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine determines, based on an output value of the downstream air-fuel ratio sensor, an air-fuel ratio of a gas flowing into the catalyst that is set to either a “target rich ratio” or a “target lean ratio”, and determines a fuel injection amount. Disclosed is an evaporated fuel purge section for introducing an evaporated fuel generated in a fuel tank into an intake passage. The purge section starts the purge when the target air-fuel ratio is set to the target rich ratio at a purge execution condition satisfied time point at which a state has changed from a state in which the purge execution condition is unsatisfied to a state in which it is satisfied, and does not start the purge when the target air-fuel ratio is set to the target lean air-fuel ratio at the purge execution condition satisfied time point. | 12-19-2013 |
20140283504 | AIR-FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - An air-fuel ratio control apparatus for an internal combustion engine according to an embodiment of the invention (the present control apparatus) sets a target air-fuel ratio to a target rich air-fuel ratio when it is determined on the basis of the output value Voxs of a downstream air-fuel ratio sensor | 09-25-2014 |
Patent application number | Description | Published |
20090276557 | BUS SYSTEM FOR USE WITH INFORMATION PROCESSING APPARATUS - A processor bus linked with at least a processor, a memory bus linked with a main memory, and a system bus linked with at least an input/output device are connected to a three-way connection control system. The control system includes a bus-memory connection controller connected to address buses and control buses respectively of the processor, memory, and system buses to transfer address and control signals therebetween. The control system further includes a data path switch connected to data buses respectively of the processor, memory, and system buses to transfer data via the data buses therebetween depending on t | 11-05-2009 |
20100306438 | BUS SYSTEM FOR USE WITH INFORMATION PROCESSING APPARATUS - A processor bus linked with at least a processor, a memory bus linked with a main memory, and a system bus linked with at least an input/output device are connected to a three-way connection control system. The control system includes a bus-memory connection controller connected to address buses and control buses respectively of the processor, memory, and system buses to transfer address and control signals therebetween. The control system further includes a data path switch connected to data buses respectively of the processor, memory, and system buses to transfer data via the data buses therebetween depending on the data path control signal. | 12-02-2010 |
Patent application number | Description | Published |
20090013125 | MEMORY CARD - A memory device is provided which is connected to operate with power and clocks supplied from a host apparatus. The memory device includes external terminals, a flash memory chip to store data, an IC chip to process data; and a controller chip connected with the external terminals, the flash memory chip and the IC chip. The flash memory chip, the IC chip and the controller chip are discrete chips. The controller chip writes data inputted from the host apparatus into the flash memory chip or the IC chip and transfers data read from the flash memory chip or the IC chip to the host apparatus, based upon commands from the host apparatus. | 01-08-2009 |
20090043034 | PLANT-BASED RESIN-CONTAINING COMPOSITION AND PLANT-BASED RESIN-CONTAINING MOLDED PRODUCT FORMED THEREFROM - A plant-based resin-containing composition according to the present invention includes polyamide 11 and an amorphous resin. The amorphous resin is at least one resin selected from the group consisting of ABS resin, AS resin, ASA resin, polyvinyl chloride, polystyrene, polycarbonate, polymethylmethacrylate, modified polyphenylene ether, polysulfone, polyethersulfone and polyarylate. A plant-based resin-containing molded product according to the present invention is formed from the aforementioned plant-based resin-containing composition of the present invention. | 02-12-2009 |
20090208756 | HOUSING FOR ELECTRONIC EQUIPMENT AND MANUFACTURING METHOD THEREOF - The housing for an electronic equipment of the present invention contains a metal housing configured to house an electronic equipment therein and a resin film with which the metal housing is coated. The preferable embodiments are the one in which an adhesive layer, a print layer, or both thereof is disposed between a resin layer contained in the resin film and the metal housing, the one in which the resin film contains at least one thermoplastic resin selected from the group consisting of polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), and polylactic acid (PLA). | 08-20-2009 |
20090250142 | Mg or Mg-Alloy Housing and Method for Producing the Same - A surface of a Mg or Mg-alloy housing of the present invention is subjected to wet blast using a mixture containing a chemical conversion treatment agent and an abrasive, whereby a chemical conversion film is formed on the surface of the Mg or Mg-alloy housing. Because of this, a chemical conversion film is formed simply on the surface of a molded product made of Mg or a Mg-alloy to reduce the correction by puttying, whereby a Mg or Mg-alloy housing is provided in which a decrease in yield and an increase in cost can be prevented. | 10-08-2009 |
20100062248 | COMPRESSION-MOLDED PRODUCT USING PLANT MATERIAL AND METHOD FOR MANUFACTURING THE SAME - First, wood or bamboo is crushed to obtain wood powder with an average grain size of 5 μm to 100 μm. Next, the wood powder is put in a first mold, and a first compression molding step is carried out under the conditions that, for example, a temperature is 160° C. and a pressure is 30 MPa. Thus, a temporary molded body is obtained. Subsequently, the temporary molded body is immersed in a flame retardant and a surface of the temporary molded body is impregnated with the flame retardant. Thereafter, the temporary molded body is put in a second mold, and a second compression molding step is carried out under the conditions that, for example, a temperature is 200° C. and a pressure is 100 MPa. At this time, ingredients such as lignin and a hemicellulose are separated from the wood powder, and function as an adhesive. For this reason, pieces of crushed material are firmly bonded with each other so as to be integrated into a single body. Thus, a compression-molded product with a predetermined shape is obtained. | 03-11-2010 |
20120118629 | PLATE MEMBER FOR HOUSING, HOUSING, AND METHOD OF FABRICATING THE SAME - A plate member for a housing has a wood part including a plurality of wood plates that are stacked, and a resin part adhered on the wood part and including a plurality of resin sheets that are stacked. Each of the plurality of resin sheets includes a plurality of pores. | 05-17-2012 |
20130248105 | HOUSING FOR ELECTRONIC EQUIPMENT AND MANUFACTURING METHOD THEREOF - A method for manufacturing a housing for an electronic equipment containing metal housing configured to house an electronic equipment therein and a resin film with which the metal housing is coated includes the steps of heating a resin film so as to soften the resin film, coating a metal housing with the heated resin film, and adhering the coated resin film to the metal housing. The preferred housing is one in which an adhesive layer, a print layer, or both thereof is disposed between a resin layer contained in the resin film and the metal housing, and in which the resin film contains at least one thermoplastic resin selected from the group consisting of polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), and polylactic acid (PLA). | 09-26-2013 |
Patent application number | Description | Published |
20090207095 | Radio Wave Lens Antenna Apparatus - In a radio wave lens antenna, a lens cover for covering the surface of the lens is stably fixed to the reflector. The antenna has a semispherical Luneberg lens, a semispherical shell-shaped lens cover for covering the surface of the lens, a radio wave reflector, a ring-shaped plate placed along the outer circumference of the lens, a primary feed placed at the focal point of the lens, and a holding part for the primary feed. A flange provided at the opening edge of the lens cover is clamped by the reflector and the plate to fix the lens cover to the reflector, and more preferably, the lens cover is caused to be in contact with the lens, and the lens is pressed also in the radial direction by the plate via the lens cover. | 08-20-2009 |
20140176994 | IMAGE FORMING APPARATUS AND COMPUTER-READABLE NON-TRANSITORY STORAGE MEDIUM WITH IMAGE FORMING PROGRAM STORED THEREON - An image forming apparatus includes an image reading section, an image processing section, an image forming control section, and an image forming section. The image reading section is configured to read an original document and output a band data set for one band. The image processing section is configured to compress the band data set at a first compression rate to generate a first compressed band data set, expand the first compressed band data set, and subject the expanded band data set to image processing. Thereafter, the image processing section compresses the band data set subjected to the image processing at a second compression rate to generate a second compressed band data set. When the number of second compressed band data sets reaches a printing start value, the image forming control section allows the image forming section to start forming an image based on the second compressed band data sets. | 06-26-2014 |
20140211262 | IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE PROCESSING METHOD - In an image processing apparatus, a memory area management portion generates a descriptor for a block storage area allocated in each of a first work memory and a second work memory, and generates sub-band management data associated with the descriptor for the block storage area in which compressed sub-band data is stored, sequentially according to arrangement of the sub-band data in the primary scanning direction and the secondary scanning direction in image data. A data loading portion changes, according to a rotation angle, the association between the sub-band management data and the descriptor after the compressed sub-band data is stored in the second work memory. A decompression processing portion performs rotating process in the sub-band data according to the rotation angle. | 07-31-2014 |