Abstract: A differential device has: a differential case supported so as to be rotatable with respect to a differential carrier fixed to the vehicle body; a differential gear mechanism composed of a plurality of pinion gears and side gears; pinion gear shafts that support the plurality of pinion gears; a tubular slide member that supports the pinion gear shafts in the differential case; an actuator that moves the slide member in the axial direction; and a position sensor that is attached to a sensor attachment member provided to the differential carrier and that is configured to detect an operating state of the actuator.

Abstract: A bearing device includes a first outer ring member and a second outer ring member which include a raceway surface in each inner circumferential surface and are disposed to abut on each other in an axial direction, a coupling ring which fixes the first outer ring member and the second outer ring member to each other, an inner ring in which two rows of raceway surfaces are formed in an outer circumferential surface, and a plurality of rolling elements which are disposed in a space formed between the raceway surface of the first outer ring member and one of the two rows of the raceway surfaces of the inner ring, and in a space formed between the raceway surface of the second outer ring member and the other one of the two rows of the raceway surfaces of the inner ring.

Abstract: A play take-up device comprising a push button that is movably mounted and translationally guided, along a thrust axis 5, in a housing, to exert a thrust force against a rack, said device further comprising a resilient shock-absorbing member that is positioned between the push button and the housing, in contact, respectively, against a first bearing surface belonging to the push button, which is angled in relation to the thrust axis, and is preferably frusto-conical, and a second bearing surface belonging to the housing, referred to which has, opposite the distribution surface and counter to the resilient shock-absorbing member, both a radially extending component and an axially extending component, such that the shock-absorbing member simultaneously returns the push button axially towards the rack and transversely towards the thrust axis.

Abstract: An electric motor that is controlled by a motor control device has two-system multi-phase motor coils. The motor control device includes a common mode noise reduction unit that changes a PWM count in a PWM cycle for at least one phase in one of two systems such that a current that flows through a stray capacitance because of an output voltage for one phase in the other system is canceled out with a current that flows through the stray capacitance because of an output voltage for the at least one phase in the one system in at least one PWM cycle in a current control cycle.

Abstract: A motor control device includes processing circuitry configured to calculate a current command value corresponding to torque that should be generated by a motor, divide the calculated current command value into individual current command values for coil groups, control power feeding to the coil groups independently for each of the coil groups based on a corresponding one of the individual current command values, set, for each one of the coil groups, an upper limit value of a corresponding one of the individual current command values and, when the individual current command value for any one of the coil groups is limited to a value that is smaller than a corresponding one of the upper limit values, supplement an amount limited in the individual current command value by increasing the individual current command value for at least a remaining one of the coil groups.

Abstract: A target assist torque calculation unit (61) includes a target steering torque calculation unit that calculates a target steering torque as a target value of a steering torque, and a torque feedback control unit that calculates a torque feedback component by performing control that makes the steering torque follow the target steering torque. The target steering torque calculation unit calculates the target steering torque having an absolute value that increases as an absolute value of a reaction force component increases. When the reaction force component exceeds a threshold torque, that is, when the absolute value of the target steering torque exceeds a maximum torque detectable by a torque sensor, the target assist torque calculation unit sets the torque feedback component to zero, and sets a target assist torque to zero.

Abstract: A machine tool includes a workpiece holder, a tool holder holding working tools that includes a hob cutter used in a rough machining and a skiving cutter used in a finish machining, a tool magazine, a tool replacing device replacing one of the working tools mounted on the tool holder with the other of working tools housed in the tool magazine, a rough machining controlling section performing the rough machining on the workpiece, a tool measuring device measuring a position of a blade in a rotation direction of the skiving cutter, an angle correcting section correcting a rotation angle of the skiving cutter based on a result measured by the tool measuring device, and placing a tooth space formed in the workpiece and an edge tip of the blade in a position corresponding to each other, and a finish machining controlling section by which workpiece is finish machined.

Abstract: A method of manufacturing a universal joint includes: temporarily assembling a bearing, which supports a shaft portion of a joint spider such that the shaft portion is rotatable, with respect to a through-hole and the shaft portion by press-fitting the bearing to a first position in the through-hole of a yoke; and clinching, after the bearing is temporarily assembled, a portion of the yoke around the through-hole, and pressing the bearing deeper into the through-hole with a clinched portion formed by the clinching to press-fit the bearing to a second position located deeper than the first position in the through-hole.

Abstract: A one-way clutch includes a rotating body, an outer ring arranged on an outer periphery of the rotating body, a roller, a biasing member, and a recess portion. The outer ring includes an indent portion. A wedge-shaped space is formed between the indent portion and an outer peripheral surface of the rotating body. The roller is disposed in the wedge-shaped space. The biasing member biases the roller to one side of the wedge-shaped space. The outer ring has a protrusion at a position corresponding to a radially outer side of the indent portion. The recess portion is formed continuously with the side surface in a circumferential direction of the protrusion on the outer peripheral surface of the outer ring.

Abstract: A vehicle steering apparatus includes a shaft member, a moving portion, a support member, and a stop portion. The moving portion includes a first abutting surface that faces the stop portion in a circumferential direction of the shaft member. The first abutting surface is inclined with respect to an axial direction of the shaft member to face a shaft support portion side when the moving portion is viewed in a radial direction of the shaft member. The stop portion includes a first abutted surface that abuts the first abutting surface.

Abstract: A learning model generation device for supporting a machine tool, includes: a first non-control element acquisition unit configured to acquire a first non-control element, the first non-control element including at least one of specifications of a workpiece and specifications of a tool and being not a machining control element for a machine tool; a machining control element acquisition unit configured to acquire the machining control element for the machine tool; and an actual quality element acquisition unit configured to acquire an actual quality element of the workpiece after machining. The leaning model generation device further includes a learning model generation unit configured to generate, by machine learning in which the first non-control element, the machining control element and the actual quality element are set as learning data, a learning model for outputting the machining control element based on the first non-control element and the actual quality element.

Abstract: A method includes a rotation locking step during which the rotation of the threaded hub about the central axis is blocked by heating a portion of the plug to soften, then by forcing the softened thermoplastic material to penetrate into, and then solidify in, a female cavity hollowed in the wall of the orifice to constitute a male member which fits into the female cavity. The female cavity forms, against the action of the male member, a guiding end stop preventing the male member, and therefore the hub, from rotating about the central axis to oppose any rotary screwing/unscrewing of the plug and maintaining a degree of freedom in axial translation along the central axis of the male member within the female cavity, so as not to impede a sliding of the hub and of its screw thread along the central axis against the wall.

Abstract: A controller for a steering device includes an electronic control unit configured to control the steering device. The electronic control unit is configured to acquire an action force and to calculate a basic reaction force based on the acquired action force. The action force includes at least two of axial forces of a plurality of types and a tire force. The axial forces of a plurality of types are applied to a turning shaft that is connected to turning wheels. The tire force is applied to the turning wheels. The electronic control unit is configured to, when one predetermined force of the acquired action force is abnormal, calculate the basic reaction force such that a contribution proportion of the predetermined force to the basic reaction force is lower than a contribution proportion when the predetermined force is not abnormal.

Abstract: A connection-disconnection device configured to switch between a connected state and a released state of a side gear and a coupling shaft, each supported by a case member so as to be rotatable relative to the case member. The connection-disconnection device has an input shaft coupled to the side gear so as not to be rotatable relative to the side gear, axial movement of the input shaft being restricted with respect to the side gear, a dog member coupled to the coupling shaft so as not to be rotatable relative to the coupling shaft and so as to be movable with respect to the coupling shaft in an axial direction, and a moving mechanism configured to move the dog member back and forth in the axial direction. Each of the input shaft and the dog member has an annular meshing portion that mesh with each other.

Abstract: A steering-side control unit includes a steering force component calculation unit that calculates a steering force component, a reaction force component calculation unit that calculates a reaction force component, a target steering angle calculation unit that calculates a target steering angle based on the steering force component and the reaction force component, and a target reaction force torque calculation unit that calculates a target reaction force torque through angle feedback control that makes the steering angle follow the target steering angle. The reaction force component calculation unit includes an end reaction force calculation unit that calculates an end reaction force, and an obstacle contact reaction force calculation unit that calculates an obstacle contact reaction force.

Abstract: A target reaction force torque calculation unit includes a reaction force component calculation unit that calculates a reaction force component, a target steering torque calculation unit that calculates a target steering torque, a torque feedback control unit that calculates a torque feedback component by performing torque feedback control for making a steering torque follow the target steering torque, a target steering angle calculation unit that calculates a target steering angle, and a steering angle feedback control unit that calculates a steering angle feedback component by performing steering angle feedback control for making a steering angle follow the target steering angle. The target reaction force torque calculation unit calculates a target reaction force torque by adding the torque feedback component and the steering angle feedback component. When an end reaction force exceeds a threshold torque, the torque feedback component is set to zero.

Abstract: A learning procedure involves generating a non-defective product learning model by conducting machine learning using non-defective product data as teacher data, and generating a defective product learning model for each defect type by conducting machine learning for each defect type using defective product data as teacher data. A calculating procedure involves calculating the likelihood of a non-defective product from output data calculated using the non-defective product learning model to which target product data is input, and calculating the likelihood of a defective product for each defect type from output data calculated using the defective product learning model to which the target product data is input. A determining procedure involves determining that the target product data is data on a defective product having an unknown defect when the likelihood of a non-defective product and the likelihood of a defective product for each defect type satisfy a predetermined requirement.

Abstract: A rolling bearing for a sliding door includes an inner ring, an outer ring, a plurality of rolling elements arranged in a rollable manner in an annular space between the inner ring and the outer ring, and a jacket member formed of a resin composition and provided so as to cover the outer peripheral surface of the outer ring. The resin composition contains polyamide 66 and glass fiber. The polyamide 66 has a number average molecular weight of 34000 to 60000. The number average molecular weight is measured by gel permeation chromatography using hexafluoroisopropanol (HFIP) as a solvent and poly (methyl methacrylate) (PMMA) as a reference material. The content of the glass fiber is 10 to 40 mass %.

Abstract: A method for manufacturing a torque sensor includes: placing a first slip ring and a second slip ring inside a sensor case, the slip rings being distant from each other and each carrying respectively a first measuring terminal and a second measuring terminal which delimit an air gap therebetween; producing a sensor beam and a sensor beam subassembly, the sensor beam subassembly comprising a Hall effect cell configured to be placed in the air gap and measure the magnetic flux therein, and an electrical connection interface; and introducing the sensor beam into an access orifice which passes through a wall of the sensor case to open on the air gap, so as to place the Hall effect cell in the air gap, then fastening the sensor beam on the sensor case.

Abstract: A cage and roller assembly includes rollers to be brought into rolling contact with a raceway surface provided on the outer periphery of a shaft, and an annular cage that retains the rollers. Lubricating oil is supplied through an oil supply hole that is provided inside the shaft and is open at an axial center region of the raceway surface. The cage includes annular portions having guide surfaces that are brought into contact with an inner peripheral surface of an outer member that is brought into rolling contact with the rollers, and cage bars that couple the annular portions together and are arranged with intervals in a circumferential direction. Clearances formed between the cage bars and the rollers housed in the pockets are larger in axial center portions of the cage bars between axial ends of the cage bars than at the axial ends of the cage bars.