Abstract: [Problem] To provide an automatic driving robot control device and control method that enable a vehicle to be operated smoothly while also being caused to conform to a command vehicle speed with high accuracy.

Abstract: [Problem] To provide an automatic driving robot control device and control method that enable a vehicle to be operated smoothly while also being caused to conform to a command vehicle speed with high accuracy.

Abstract: Provided are a composite member, a seat for automobile, and a component for automobile that suppress a decrease in strength at a connection place between a metal member and a fiber-reinforced member. A composite member includes: a fiber-reinforced member formed by impregnating a plurality of sheet-shaped core materials with a matrix resin; and a metal member joined to the fiber-reinforced member.

Abstract: An electromagnetic fuel injection valve includes: a valve body having a rod connected to a valve part; a movable core fitted onto the rod slidably between valve-open side and valve-closed side stoppers; a fixed core having an attracting face opposing the movable core; a valve spring urging the valve body in a valve-closing direction; and an auxiliary spring exhibiting a spring force that urges the movable core to separate from the valve-open side stopper and abut against the valve-closed side stopper when a coil is unenergized. A first curved face part is protruded from a surface, opposing the movable core, of the fixed core, and a second curved face part is provided in an outer peripheral part of a surface, opposing the movable core, of the valve-open side stopper, the first and second curved face parts each having an arcuate cross-section and being capable of abutting against the movable core.

Abstract: An electromagnetic fuel injection valve includes: a valve body having a rod connected to a valve part; a movable core fitted onto the rod slidably between valve-open side and valve-closed side stoppers; a fixed core having an attracting face opposing the movable core; a valve spring urging the valve body in a valve-closing direction; and an auxiliary spring exhibiting a spring force making the movable core abut against the valve-closed side stopper when a coil is unenergized. A surface, opposing the movable core, of the valve-closed side stopper includes: an annular first curved face part curved convexly toward the movable core and capable of abutting thereagainst; and first and second taper faces continuous respectively to inner and outer peripheral sides of the first curved face part and gradually separated from the movable core in going radially inward and outward, respectively, from the first curved face part.

Abstract: Provided is a learning system 10 for an operation inference learning model 70 for controlling an automatic driving robot 4, the learning system 10 training the operation inference learning model 70 by reinforcement learning, and comprising the operation inference learning model 70, which infers operations of a vehicle 2 for making the vehicle 2 run in accordance with a defined command vehicle speed based on a running state of the vehicle 2 including a vehicle speed, and the automatic driving robot 4, which is installed in the vehicle 2 and which makes the vehicle 2 run based on the operations.

Abstract: A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.

Abstract: An electromagnetic fuel injection valve includes: a valve body having a rod connected to a valve part; a movable core fitted onto the rod slidably between valve-open side and valve-closed side stoppers; a fixed core having an attracting face opposing the movable core; a valve spring urging the valve body in a valve-closing direction; and an auxiliary spring exhibiting a spring force making the movable core abut against the valve-closed side stopper when a coil is unenergized. A surface, opposing the movable core, of the valve-closed side stopper includes: an annular first curved face part curved convexly toward the movable core and capable of abutting thereagainst; and first and second taper faces continuous respectively to inner and outer peripheral sides of the first curved face part and gradually separated from the movable core in going radially inward and outward, respectively, from the first curved face part.

Abstract: An electromagnetic fuel injection valve includes: a valve body having a rod connected to a valve part; a movable core fitted onto the rod slidably between valve-open side and valve-closed side stoppers; a fixed core having an attracting face opposing the movable core; a valve spring urging the valve body in a valve-closing direction; and an auxiliary spring exhibiting a spring force that urges the movable core to separate from the valve-open side stopper and abut against the valve-closed side stopper when a coil is unenergized. A first curved face part is protruded from a surface, opposing the movable core, of the fixed core, and a second curved face part is provided in an outer peripheral part of a surface, opposing the movable core, of the valve-open side stopper, the first and second curved face parts each having an arcuate cross-section and being capable of abutting against the movable core.

Abstract: A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.

Abstract: [Problem] To provide a vehicle speed control device and a vehicle speed control method that allow vehicle speed commands to be followed with high precision.

Abstract: A headrest is provided including an upper pillow section that configures a front side of an upper portion of the headrest, and a lower pillow section that configures a front side of a lower portion of the headrest. A front-rear position of the lower pillow section with respect to the upper pillow section is adjustable by swinging the lower pillow section about a shaft extending along a seat width direction at an upper edge side of the lower pillow section, and a protrusion amount by which respective seat width direction side portions of the lower pillow section protrude toward a seat front side being adjustable with respect to a seat width direction intermediate portion of the lower pillow section by swinging the two seat width direction side portions about a shaft extending in a seat vertical direction.

Abstract: A vehicle seat includes: a seat main body including a seat face side at which occupant sits; a blower device provided at the seat main body and that blows air when operated; an exhaust portion provided at the seat main body and that exhausts air blown from the blower device to the seat face side of the seat main body; an intake portion provided at the seat main body and that takes in air; and a suction device provided at the seat main body and that takes in air through the intake portion when operated, and the suction device forming an air current at the seat face side of the seat main body at a vicinity of the seat occupant, the air current including at least a portion of air that is exhausted to an outer side of the seat main body from the exhaust portion.

Abstract: A machine tool management system includes a machine tool, a memory, a display, and a control circuit. The control circuit is configured to record, in the memory, a time point at which detection information with respect to a machine tool is detected and the detection information corresponding to the time point; determine selected detection information among the detection information to satisfy a determination condition; record, in the memory, the selected detection information corresponding to the time point; display a list of the selected detection information according to predetermined display items; extract from the memory at least part of the detection information including one of the selected detection information corresponding to one display item selected among the display items listed on the display; and to display a graph of a change over time in data included in the at least part of the detection information.

Abstract: A headrest is provided including an upper pillow section that configures a front side of an upper portion of the headrest, and a lower pillow section that configures a front side of a lower portion of the headrest. A front-rear position of the lower pillow section with respect to the upper pillow section is adjustable by swinging the lower pillow section about a shaft extending along a seat width direction at an upper edge side of the lower pillow section, and a protrusion amount by which respective seat width direction side portions of the lower pillow section protrude toward a seat front side being adjustable with respect to a seat width direction intermediate portion of the lower pillow section by swinging the two seat width direction side portions about a shaft extending in a seat vertical direction.

Abstract: A method capable of accurately detecting a polishing surface of a polishing pad using a polishing head without being influenced by passage of time is disclosed. The includes: moving a polishing head in a direction perpendicular to a polishing surface of a polishing pad while applying thrust from the polishing head to the polishing pad; during the movement of the polishing head, detecting deflection of a head arm with a strain sensor, the head arm supporting the polishing head; and determining a position of the polishing head corresponding to a point in time at which an output signal from the strain sensor reaches a preset threshold value.

Abstract: A vehicle seat frame, which is attached to a vehicle body, includes: a frame body that extends along an outer frame of the vehicle seat frame, the frame body having a hollow space therein, and an airbag that is disposed in the hollow space of the frame body. The airbag is connected to a gas supply device that supplies gas into the airbag to deploy the airbag in the hollow space in a case where an impact equal to or more than a predetermined value is detected by an impact sensor.

Abstract: A vehicle seat includes: a seat main body including a seat face side at which occupant sits; a blower device provided at the seat main body and that blows air when operated; an exhaust portion provided at the seat main body and that exhausts air blown from the blower device to the seat face side of the seat main body; an intake portion provided at the seat main body and that takes in air; and a suction device provided at the seat main body and that takes in air through the intake portion when operated, and the suction device forming an air current at the seat face side of the seat main body at a vicinity of the seat occupant, the air current including at least a portion of air that is exhausted to an outer side of the seat main body from the exhaust portion.

Abstract: A vehicle seat includes a cushion frame, a base portion, and a guide structure. The guide structure includes a rail and a rolling mechanism. The rolling mechanism includes an upper guide roller, a lower guide roller, and a roller holder. The rolling mechanism is sandwiched by an upper rolling surface and a lower rolling surface of the rail. The guide structure is configured such that when an occupant load is input to the cushion frame, the guide roller and the rolling surface at one of a first contact point or a second contact point come relatively close together, such that pressure increases, due to a relative position of the roller holder and the rail changing, with the other of the first contact point or the second contact point as a reference point.