Abstract: A control device compression-ignition type engine that compression-ignites an air-fuel mixture in cylinders by introducing ozone into the cylinders at a predetermined operating range is provided. The control device detects a first ignition timing of an air-fuel mixture when introducing an intake of a first ozone concentration into the cylinders, detects a second ignition timing of the air-fuel mixture when introducing an intake of a second ozone concentration that differs from the first ozone concentration, and determines the fuel ignition ability based on a difference between the detected first ignition timing and the detected second ignition timing.

Abstract: A control device of an engine is provided. The engine is operated at a high compression ratio, a geometric compression ratio of the engine being 14:1 or higher. The control device includes a fuel injection controller for controlling a fuel injector of the engine to start a fuel injection in a latter half of a compression stroke within an engine operating range where an engine speed is below a predetermined value and an engine load is above a predetermined value, and an ignition controller for controlling an ignition plug of the engine to retard an ignition timing when a timing for the fuel injection controller to start the fuel injection is on a retarding side of a predetermined timing, the ignition timing being retarded based on a retarding amount of the fuel injection start timing from the predetermined timing.

Abstract: A combustion chamber structure for an engine is provided. The combustion chamber structure includes a piston formed with a downward dented cavity at a central part of an upper surface thereof, and a fuel injector provided above the piston and on an extended line of a central axis of the piston, the fuel injector changing an injection timing of fuel on a compression stroke according to an operating state of the engine. A fuel injection angle of the fuel injector is designed to satisfy conditions in which the fuel is injected into the cavity and in which a fuel spray collision distance defined from a fuel injection position of the fuel injector to a collision position of the fuel with the cavity is longer than a breakup length defined from the fuel injection position of the fuel injector to a position where an initial breakup of the fuel occurs.

Abstract: A combustion chamber structure for an engine is provided. The structure includes a piston formed with a downward dented cavity in a central part of an upper surface thereof, and a cylinder head forming a combustion chamber having a pent-roof shape. The upper surface of the piston has an annular part extending from an outer edge of the cavity to an outer edge of the upper surface, and surrounding the outer edge of the cavity. The annular part is formed with first and second piston upper surface portions. When the piston is at a top dead center, a ratio of a volume of a space formed between the first piston upper surface portion and a bottom surface of the cylinder head with respect to a volume of a space formed between the second piston upper surface portion and the bottom surface becomes below a predetermined value.

Abstract: A droplet discharging method includes: forming a plurality of dots on a first region of a medium, on a second region which is positioned in a ?Y direction from the first region, and on a third region which is positioned in the ?Y direction from the second region. The dots are formed on the first region by using a first head and a second head to cause a second head use ratio to be constant, the dots are formed on the second region by using the first head and the second head so as to cause the second head use ratio to be increased from a value less than a first set value to a value greater than a second set value greater than the first set value in the ?Y direction, and the dots are formed on the third region by using the second head.

Abstract: A droplet discharging method includes: forming a plurality of dots on a first region of a medium, on a second region which is positioned in a ?Y direction from the first region, and on a third region which is positioned in the ?Y direction from the second region. The dots are formed on the first region by using a first head, the dots are formed on the second region by using the first head and a second head so that a second head use ratio is increased from a value less than a first set value to a value greater than a second set value greater than the first set value in the ?Y direction, and the dots are formed on the third region by using the first head and the second head to cause the second head use ratio to be constant.

Abstract: A vehicle course estimation device which includes: a direction indicator sensor which detects an operating state of a direction indicator of a vehicle; a distance detection section which detects a distance between the vehicle and an intersection located at a travel direction side of the vehicle; a reference speed calculation section which calculates a reference speed, which is a speed for the vehicle to arrive at the intersection after a predetermined time, on the basis of the distance between the vehicle and the intersection located at the travel direction side of the vehicle, which has been detected by the distance detection section, when an operation of the direction indicator is detected by the direction indicator sensor; and a course estimation section which estimates a course of the vehicle on the basis of a speed of the vehicle with respect to the reference speed calculated by the reference speed calculation section.

Abstract: An object of the present invention is to provide a vehicle information processing device which is able to specify a traveling road of a host vehicle with high reliability without including detailed map data in an in-vehicle storage unit. A driving support device according to the present invention is a vehicle information processing device which specifies a traveling road of a host vehicle, and includes means for obtaining host vehicle information including current position information of the host vehicle using a GPS; means for obtaining road information from an information transmission device which is installed in a road; means for temporarily selecting a traveling road of the host vehicle using the host vehicle information, and the road information on the surrounding roads; and means for specifying a traveling road of the host vehicle using a reliability of a temporary selection result of the means for temporarily selecting traveling road.

Abstract: To minimize any decrease in image quality, even in an instance in which there is a displacement in a landing position of a fluid in a region in which nozzle rows overlap, (A) a fluid-ejecting device including: a first nozzle column; (B) a second nozzle column, the second nozzle column being arranged so as to form an overlapping region; and (C) a control part for causing the fluid to be ejected so that in each of a plurality of raster lines arranged in a row in the predetermined direction in the overlapping region, dots to be formed are apportioned between the first nozzles and the second nozzles; the control part causing the fluid to be ejected so that there are produced.

Abstract: A droplet discharging method includes: forming a plurality of dots on a first region of a medium, on a second region which is positioned in a ?Y direction from the first region, and on a third region which is positioned in the ?Y direction from the second region. The dots are formed on the first region by using a first head and a second head to cause a second head use ratio to be constant, the dots are formed on the second region by using the first head and the second head so as to cause the second head use ratio to be increased from a value less than a first set value to a value greater than a second set value greater than the first set value in the ?Y direction, and the dots are formed on the third region by using the second head.

Abstract: A droplet discharging method includes: forming a plurality of dots on a first region of a medium, on a second region which is positioned in a ?Y direction from the first region, and on a third region which is positioned in the ?Y direction from the second region. The dots are formed on the first region by using a first head, the dots are formed on the second region by using the first head and a second head so that a second head use ratio is increased from a value less than a first set value to a value greater than a second set value greater than the first set value in the ?Y direction, and the dots are formed on the third region by using the first head and the second head to cause the second head use ratio to be constant.

Abstract: A head unit is provided that includes a plurality of head groups having a first head and a second head in a direction which crosses a transport direction of a medium. Color difference is obtained which indicates difference in color between patches formed for each band using dots having the same dot diameter from among a plurality of patches based on the result of color measurement performed on a test pattern which includes the plurality of patches for each band, the plurality of patches being formed for each head group using dots having different dot diameters. The amount of first ink and the amount of second ink, which are respectively ejected from the first head and the second head which are included in all the head groups, are adjusted such that the dot diameter becomes the dot diameter which is determined based on the color difference.

Abstract: An object of the present invention is to provide a vehicle information processing device which is able to specify a traveling road of a host vehicle with high reliability without including detailed map data in an in-vehicle storage unit. A driving support device according to the present invention is a vehicle information processing device which specifies a traveling road of a host vehicle, and includes means for obtaining host vehicle information including current position information of the host vehicle using a GPS; means for obtaining road information from an information transmission device which is installed in a road; means for temporarily selecting a traveling road of the host vehicle using the host vehicle information, and the road information on the surrounding roads; and means for specifying a traveling road of the host vehicle using a reliability of a temporary selection result of the means for temporarily selecting traveling road.

Abstract: There is provided a vehicle course estimation device capable of estimating the course of a vehicle accurately.

Abstract: A dither mask is used in a halftone process that is performed by the printer that includes the preceding and following heads. The dither mask includes preceding and following head storage regions. The preceding head storage region is used for a printing portion of the preceding head. The following head storage region is used for a printing portion of the following head. The dither mask is generated by determining, using comprehensive evaluation values, storage elements in which thresholds are to be stored under the condition that dots are permitted to be formed by the preceding and following heads at the same position in the region corresponding the overlapping regions.

Abstract: A loss of print quality is suppressed even when the recording medium is skewed by the paper feed roller. A distance D2, which is the length of separation between a black nozzle line BT of an upstream head unit and a yellow nozzle line YT of a downstream head unit, is a distance corresponding to the distance offset the conveyance distance of the recording medium when the paper feed roller turns a half revolution from the conveyance distance of the recording medium when the paper feed roller turns an integer number of revolutions.

Abstract: A liquid ejection device includes first and second heads. A first color conversion table is for converting a tone value of a first color space of a pixel, for which the liquid is ejected from the first head, to a tone value of a second color space corresponding with a color of the liquid, and a second color conversion table is for converting a tone value of the first color space of a pixel, for which the liquid is ejected from the second head, to a tone value of the second color space. For a pixel of an overlapping portion for which the liquid is ejected from the first and second heads, a tone value of the first color space is converted to a tone value of the second color space according to a third color conversion table created based on the first and second color conversion tables.

Abstract: For each of a plurality of reference colors located at prescribed coordinates in a first color space (e.g., the RGB color space), there are associated, on an individual pixel row basis, correction vectors indicating correction amounts in the first color space. For each pixel datum of image data of first tone values (e.g., 256 tone values) of the first color space prior to a color conversion process, a correction process is carried out on the basis of the correction vector that has been associated with the pixel row to which a given pixel belongs, the correction vector also being associated with the reference color of a location surrounding the coordinates that indicate the pixel data in the first color space. The color conversion process and the halftoning process are carried out on image data composed of the pixel data that has been subjected to the correction process.

Abstract: A recording apparatus of this invention includes a head; a transport mechanism that transports a medium in a transport direction with respect to the head, according to a target transport amount to be targeted; a memory that stores a plurality of correction values associated with a relative position of the head and the medium; and a controller that controls the transport mechanism based on the target transport amount that has been corrected, after correcting the target transport amount based on correction values, which are in number according to a size of the target transport amount, and which include the correction value according to the relative position when transporting by the target transport amount.

Abstract: A liquid ejection method includes determining, according to image data, an ejection pixel that is a pixel at which a liquid is to be ejected and a non-ejection pixel that is a pixel at which a liquid is not to be ejected; determining, according to the image data, a nozzle requiring flushing; and ejecting liquid from the nozzle requiring flushing to the non-ejection pixel adjacent to the ejection pixel, the non-ejection pixel being among pixels associated with the nozzle requiring flushing.