Abstract: An engine lubrication system including: an oil pump configured to be driven by an engine; an oil jet mechanism configured to inject oil pressure-fed by the oil pump to a piston; and circuitry configured to set a target hydraulic pressure of the oil injected from the oil jet mechanism according to an operation state of the engine; determine a hydraulic pressure state of the oil injected from the oil jet mechanism; and change a gear stage of the automatic transmission to a lower gear stage in a case that a predetermined condition between the determined hydraulic pressure state and the target hydraulic pressure is satisfied.

Abstract: A vehicle external recognition extracts a feature point from an image including an environment around a vehicle; measures a distance from the vehicle to the feature point based on a movement of the feature point; extracts, as a first road surface area, a local area judged as a road surface based on distance information to the feature point and a position of the feature point in the image from among a plurality of local areas in the image; calculates a multi-dimensional image feature amount including color information for each of the plurality of local areas, and similarity to the first road surface area using the image feature amount with respect to a no-road-surface-extracted area(s) from among the plurality of local areas; extracts a second road surface area from the no-road-surface-extracted area(s) based on the similarity; and recognizes a travelable area using the first and the second road surface areas.

Abstract: A vehicle external recognition extracts a feature point from an image including an environment around a vehicle; measures a distance from the vehicle to the feature point based on a movement of the feature point; extracts, as a first road surface area, a local area judged as a road surface based on distance information to the feature point and a position of the feature point in the image from among a plurality of local areas in the image; calculates a multi-dimensional image feature amount including color information for each of the plurality of local areas, and similarity to the first road surface area using the image feature amount with respect to a no-road-surface-extracted area(s) from among the plurality of local areas; extracts a second road surface area from the no-road-surface-extracted area(s) based on the similarity; and recognizes a travelable area using the first and the second road surface areas.

Abstract: A machine learning method includes acquiring data including attendance records of employees and information indicating which employee has taken a leave of absence from work, in response to determining that a first employee of the employees has not taken a leave of absence in accordance with the data, generating a first tensor on a basis of an attendance record of the first employee and parameters associated with elements included in the attendance record, in response to determining that a second employee of the employees has taken a leave of absence in accordance with the data, modifying the parameters, and generating a second tensor on a basis of an attendance record of the second employee and the modified parameters, and generating a model by machine learning based on the first tensor and the second tensor.

Abstract: An elastic wave device includes a piezoelectric substrate, an IDT electrode on the piezoelectric substrate, a support member that is provided on the piezoelectric substrate so as to surround the IDT electrode, a cover that covers the support member, via electrodes that penetrate through the support member and the cover, and bumps that are bonded to the via electrodes. The IDT electrode is located in a hollow space that is enclosed by the piezoelectric substrate, the support member and the cover. A protruding portion extends along at least a portion of an outer peripheral edge of a surface of the cover that is on the opposite side from the piezoelectric substrate, and the protruding portion extends in a direction away from the piezoelectric substrate.

Abstract: A vehicle-mounted image processing device 1000 acquires an image around a host vehicle 10, senses a feature amount of a target object present on a road surface from the image, and relative position coordinates with respect to the host vehicle 10, acquires information of a three-dimensional object around the host vehicle 10 and relative position coordinates of the three-dimensional object, distinguishes whether the feature amount is a feature amount of a feature on the road surface or a feature amount of a feature on the three-dimensional object by using a positional relationship between the feature amount and the three-dimensional object, and recognizes the target object by using a feature on the road surface. As a result, a vehicle-mounted image processing device, which is capable of avoiding misrecognition of a part of a three-dimensional object as a target object when sensing the target object present on a road surface such as a parking bay by using a camera image, is provided.

Abstract: A control system of an engine is provided, which includes a piston formed with a cavity and configured to reciprocate in a cylinder along a center axis of the cylinder, and a fuel injector disposed facing a top surface of the piston and configured to inject fuel along an injection axis. When the piston is located near a top dead center of compression stroke, the fuel injector performs a first injection so that the fuel flows from the fuel injector toward the cavity along the injection axis, collides with an inner surface of the cavity, then flows back toward the fuel injector along the inner surface of the cavity from a position offset from the injection axis. The fuel injector performs a second injection toward the cavity at a timing after the first injection and at which the fuel of the first injection flows back.

Abstract: A learning device receives, for each target, learning data that represents the source of generation of a tensor including a plurality of elements which multi-dimensionally represent the features of the target over a period of time set in advance. When the target satisfies a condition set in advance, the learning device identifies the period of time corresponding to the condition in the learning data. Subsequently, the learning device generates a weighted tensor corresponding to the learning data that is at least either before or after the concerned period of time.

Abstract: When a vehicle starts, a surrounding state is securely provided to a driver. When a vehicle operation detector detects that there is a possibility that a parked vehicle starts, a vehicle surrounding state recognizer recognizes a state of surrounding of the vehicle based on images imaged by a plurality of cameras imaging a plurality of different areas of the surrounding of the vehicle. A parking style determiner determines a parking style executed in parking at a position where the vehicle now parks based on a recognition result of the vehicle surrounding state recognizer. A monitoring area setter sets a monitoring area where a driver is required to pay attention when the vehicle is started based on a determination result of the parking style determiner. A vehicle surrounding state provider provides a driver with information provision in the monitoring area.

Abstract: An elastic wave device includes a substrate, an IDT electrode, a spacer layer, a cover, and a protective layer. The spacer layer is provided on the substrate and surrounds the IDT electrode. The cover is provided on the spacer layer, is spaced apart from the IDT electrode, and includes a first main surface adjacent to the spacer layer and a second main surface facing the first main surface. The protective layer includes a third main surface contacting the second main surface, a fourth main surface facing the third main surface, and a side surface connected to the fourth main surface. In at least portion of the side surface of the protective layer, a portion including an intersection line between the side surface and the fourth main surface is located farther inward than an outer edge of the substrate in plan view in the thickness direction of the substrate.

Abstract: An in-vehicle device 4 includes an image acquisition unit 42 that acquires an image photographed by a camera 2 including a lens, a storage unit 7, a dirt detection unit 6 that detects dirt on the lens on the basis of the image acquired by the image acquisition unit 42 and that stores dirt region information indicating a region where the dirt exists in the image into the storage unit 7, a dirt removal information generation unit 8 that generates dirt removal information indicating a region where the dirt on the lens is removed, and a rewriting unit 12 that rewrites the dirt region information on the basis of the dirt removal information. Accordingly, it is possible to rewrite the dirt region information on the basis of the dirt removal information.

Abstract: An elastic wave device includes a piezoelectric substrate, an interdigital transducer electrode on the piezoelectric substrate, a support on the piezoelectric substrate, including a cavity, and surrounding the interdigital transducer electrode at the cavity, a cover covering the cavity and provided on the support, and a via hole electrode penetrating the cover and the support. The via hole electrode includes a projection portion projecting outward from a side surface portion when seen in a plan view. The projection portion is located within the cover.

Abstract: A control system of an engine is provided, which includes a piston formed with a cavity and configured to reciprocate in a cylinder along a center axis of the cylinder, and a fuel injector disposed facing a top surface of the piston and configured to inject fuel along an injection axis. When the piston is located near a top dead center of compression stroke, the fuel injector performs a first injection so that the fuel flows from the fuel injector toward the cavity along the injection axis, collides with an inner surface of the cavity, then flows back toward the fuel injector along the inner surface of the cavity from a position offset from the injection axis. The fuel injector performs a second injection toward the cavity at a timing after the first injection and at which the fuel of the first injection flows back.

Abstract: An elastic wave device includes a dielectric film on a piezoelectric substrate, an IDT electrode including first and second comb electrodes on the dielectric film, first and second wiring electrodes electrically connected to the first and second comb electrodes, wherein the first comb electrode and the second comb electrode each include electrode fingers and a busbar in contact with the electrode fingers. An electrical conductivity of the piezoelectric substrate is higher than the electrical conductivity of the dielectric film. At least one of the first wiring electrode, the second wiring electrode, the busbar of the first comb electrode, and the busbar of the second comb electrode includes a portion that is in direct contact with the piezoelectric substrate.

Abstract: The present invention provides a vehicle-mounted imaging device that can notify a user of contamination, at a facility, a home or the vicinity thereof in which the user tends to easily eliminate the contamination on a lens or a protective glass of the lens of a camera.

Abstract: An elastic wave device includes a piezoelectric substrate, an IDT electrode on the piezoelectric substrate, a support member that is provided on the piezoelectric substrate so as to surround the IDT electrode, a cover that covers the support member, via electrodes that penetrate through the support member and the cover, and bumps that are bonded to the via electrodes. The IDT electrode is located in a hollow space that is enclosed by the piezoelectric substrate, the support member and the cover. A protruding portion extends along at least a portion of an outer peripheral edge of a surface of the cover that is on the opposite side from the piezoelectric substrate, and the protruding portion extends in a direction away from the piezoelectric substrate.

Abstract: A control unit controls the amplitude of at least either an output voltage or an output current by shifting at least either a first on time or a second on time.

Abstract: A power conversion apparatus that switches, with a relay unit, from a disconnected state to a connected state between a connector and at least one of a commercial power system and a load while a switching device is in an off state.

Abstract: A method includes detecting a first input indicative of a first position in an image output by a display, detecting a second input indicative of a second position in the image different from the first position, and causing an object to be output by the display based on the first input or the second input. The object includes a boundary having a first end closer to the first position than to the second position, and a second end closer to the second position than to the first position.

Abstract: A power conversion apparatus includes an inductor inserted between a secondary winding and a switching device, and an auxiliary switching device inserted between the secondary winding and the switching device in parallel to the inductor. The auxiliary switching device is in an off state in a power supply mode in which an output voltage and an output current of a connector have the same polarity. The auxiliary switching device is in an on state in a power regeneration mode in which the output voltage and the output current of the connector have different polarities.