Abstract: This clutch control device includes a clutch device configured to connect or disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a drive force for actuating the clutch device, and a control unit configured to control driving of the clutch actuator, in which the clutch actuator is provided with a drive source that outputs the drive force and a power transmission mechanism that is disposed between the drive source and the clutch device, and the control unit detects parameter values corresponding to friction of the clutch actuator on the basis of a delay in driving of the power transmission mechanism with respect to a change in a control parameter for the drive source, and controls driving of the drive source through use of a control parameter including at least a part of the parameter values corresponding to the friction.

Abstract: A light guide plate (2) includes: a light guide plate body (D) in which prisms (10) as multiple fine concave parts are formed on one surface, the prisms each having a reflective surface; and a transparent ink layer (11), located at a portion other than a design (P) to be illuminated and displayed in a region (R1) in which the prisms (10) are formed in the light guide plate body (D), and filling the prisms (10) of the located portion to set the reflective surface as a non-reflective surface.

Abstract: A steel sheet having a specified chemical composition and a method for producing the steel sheet. The steel sheet has a microstructure comprising ferrite: 5% or less, and at least one of upper bainite, fresh martensite, tempered martensite, lower bainite, and retained ?: 95% to 100% by area percentage, and retained ?: 4% to 15% by volume percentage. Retained ?UB has a specified area percentage S?UB, retained ?LB has a specified distribution number N?LB, and at least one of (i) fresh martensite has a specified equivalent circular grain diameter and aspect ratio and (ii) retained ? grains has a specified equivalent circular grain diameter and aspect ratio.

Abstract: A light guide plate unit includes: a first light guide plate (11) that is a light guide plate having a glass layer, and has the glass layer on a light exit surface of a light guide plate body (D); a light source (14), located on a side surface of the first light guide plate (11) and supplying light into the light guide plate body (D); and a housing (30). The housing (30) has an opening (32a). The first light guide plate (11) is disposed, so that the side of the glass layer faces the opening (32a) of the frame (32) to block the opening (32a).

Abstract: This clutch control apparatus includes: a clutch device; a clutch actuator; and a control unit, wherein the clutch actuator includes a plurality of electric motors and a transmission mechanism, wherein the plurality of electric motors are able to input a driving force to a common transmission element of the transmission mechanism, wherein the control unit detects at least one resistance value of the plurality of electric motors without driving a common transmission element by reversely driving a part of the plurality of electric motors and remaining electric motors, and wherein the control unit estimates a motor temperature from the resistance value and controls the driving of the plurality of electric motors according to the motor temperature.

Abstract: A water jet propulsion boat includes a hull, a drive source, a power storage, a jet propulsion mechanism, a power generator, and a controller. The hull includes a water inlet, a jet outlet, and a flow path connecting the water inlet and the jet outlet and including at least a main flow path extending from the water inlet to the jet outlet. The drive source is located in the hull, and the power storage supplies power to the drive source. The jet propulsion mechanism includes an impeller in the main flow path and driven by a driving force of the drive source to generate a water flow to generate a propulsive force to the hull. The power generator is located in the flow path and uses the water flow generated by the impeller to generate power. The controller charges the power storage with the power generated by the power generator.

Abstract: This clutch control device includes a clutch device configured to connect or disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a drive force for actuating the clutch device, and a control unit configured to control driving of the clutch actuator, in which the clutch actuator includes a plurality of drive sources that output the drive force.

Abstract: A steel sheet having a specified chemical composition and a method for producing the steel sheet. The steel sheet has a microstructure comprising ferrite: 5% or less, and at least one of upper bainite, fresh martensite, tempered martensite, lower bainite, and retained ?: 95% to 100%, and retained ?: 5% to 20%. Retained ?UB has a specified area percentage S?UB, retained ?LB has a specified distribution number N?LB, and at least one of (i) fresh martensite has a specified equivalent circular grain diameter and aspect ratio and (ii) retained ? grains has a specified equivalent circular grain diameter and aspect ratio.

Abstract: This clutch control device includes a clutch device configured to connect or disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a drive force for actuating the clutch device, and a control unit configured to control driving of the clutch actuator, in which the clutch actuator includes a plurality of drive sources that output the drive force.

Abstract: This clutch control device includes a clutch apparatus configured to connect and disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a driving force for actuating the clutch apparatus, a control unit configured to drive the clutch actuator, and an operating force transmission mechanism configured to transmit an operating force of a driver with respect to a clutch operator to the clutch apparatus, an operating force sensor configured to detect the operating force of the driver is provided in the operating force transmission mechanism, and the control unit drives the clutch actuator according to a detection value of the operating force sensor.

Abstract: A clutch control device includes a clutch apparatus (26) configured to connect and disconnect power transmission between a prime mover (13) and an output object (21), a clutch actuator (50) configured to output a driving force for actuating the clutch apparatus (26), a controller (40) configured to control driving of the clutch actuator (50), and a clutch operator configured to operate the clutch apparatus (26) regardless of the driving of the clutch actuator (50), the controller (40) detects that there is a manual operation by the clutch operator when a difference of a predetermined value or more is detected between a reference output value of the clutch actuator (50) configured to operate the clutch apparatus (26) and a measured value of an output value of the clutch actuator (50).

Abstract: A saddle-type vehicle includes a gearbox having a clutch operated by actuation of a slave cylinder, a hydraulic actuator having a master cylinder configured to generate a hydraulic pressure in a working fluid, a hydraulic valve unit configured to control transmission of the hydraulic pressure generated by the master cylinder to the slave cylinder, a master-side connecting pipeline, and a slave-side connecting pipeline, wherein the hydraulic valve unit Is disposed at a position closer to the slave cylinder than the hydraulic actuator.

Abstract: This clutch control device includes a clutch apparatus configured to connect and disconnect power transmission between a prime mover and an output target, a clutch actuator configured to output a driving force for actuating the clutch apparatus, a control unit configured to drive the clutch actuator, and an operating force transmission mechanism configured to transmit an operating force of a driver with respect to a clutch operator to the clutch apparatus, an operating force sensor configured to detect the operating force of the driver is provided in the operating force transmission mechanism, and the control unit drives the clutch actuator according to a detection value of the operating force sensor.

Abstract: A saddle-type vehicle includes a power unit including a multistage transmission having a plurality of gear positions, a transmission actuating mechanism for changing the gear positions, a shift spindle as an input shaft of the transmission actuating mechanism, a crankcase housing therein the multistage transmission and the transmission actuating mechanism, and a crankcase cover covering a side portion of the crankcase. The shift spindle is disposed in the periphery of the crankcase cover and is coupled to a shift actuator mounted on the crankcase cover by a joint rod. Such saddle-type vehicle having a power unit with a shift spindle movable by a shift actuator, in which the shift spindle and the shift actuator are combined with each other in a small-size layout with a joint rod joining the shift spindle and the shift actuator to each other, allows the joint rod to be installed in position with ease.

Abstract: This saddle-riding type vehicle includes: a transmission that includes a clutch operated by an operation of a slave cylinder; an oil pressure actuator that includes a master cylinder which generates an oil pressure on an operation oil; an oil pressure valve unit that controls transmission of the oil pressure generated by the master cylinder to the slave cylinder; a master-side connection pipe arrangement that connects the master cylinder to the oil pressure valve unit; and a slave-side connection pipe arrangement that connects the oil pressure valve unit to the slave cylinder, wherein the slave cylinder and the oil pressure valve unit are arranged on one side part in a vehicle width direction of the saddle-riding type vehicle, and the oil pressure actuator is arranged on another side part in the vehicle width direction of the saddle-riding type vehicle.

Abstract: A marine vessel that is able to inform a vessel operator that an attachment is attached includes a hull and a controller configured or programmed to function as a judging unit to judge whether or not an attachment that is attachable and detachable to and from the hull is attached to the hull, and to function as a notifying unit to, in a case of being judged by the judging unit that the attachment is attached, execute a notification process to notify the vessel operator that the attachment is attached to the hull.

Abstract: This clutch control device includes an engine (13), a transmission (21), a clutch device (26) configured to connect and disconnect motive power transmission between the engine (13) and the transmission (21), a clutch actuator (50) configured to drive the clutch device (26) and change a clutch capacity, a control parameter sensor (58) configured to detect a control parameter of the clutch capacity and a control unit (60) configured to calculate a control target value (TP) of the control parameter. The control unit (60) causes the clutch device (26) to perform a stroke in a connection direction until an actual measurement value of the control parameter reaches the control target value (TP).