Abstract: The steel material includes a chemical composition containing, in mass %, C: 0.15 to 0.45%, Si: 0.50% or less, Mn: 0.20 to 0.60%, P: 0.015% or less, S: 0.005% or less, Cr: 0.80 to 1.50%, Mo: 0.17 to 0.30%, V: 0.24 to 0.40%, Al: 0.005 to 0.100%, N: 0.0300% or less, O: 0.0015% or less, and the balance being Fe and impurities, and satisfying Formula (1) to Formula (4) described in Embodiment, wherein, in its microstructure, a total area fraction of ferrite and pearlite is 10.0% or more, and a proportion of a content of V (mass %) in electrolytic extraction residue to the content of V (mass %) in the chemical composition is 10.0% or less.

Abstract: A cage of an angular ball bearing includes, with respect to a plurality of balls arranged between an outer member and an inner member, an annular portion positioned on one side in an axial direction of the angular ball bearing, and a plurality of pillar portions provided to extend from the annular portion to the other side in the axial direction. The pillar portions include a first flat surface portion contactable with the balls on one side in a circumferential direction of the angular ball bearing, and a second flat surface portion contactable with the balls on the other side in the circumferential direction and parallel to the first flat surface portion.

Abstract: A steering control apparatus controls a motor used to turn a steered wheel of a vehicle, which synchronizes with a steering wheel, based on a command value. The steering control apparatus includes an electronic control unit. The electronic control unit is configured to compute a feedback control torque to be reflected in the command value. The electronic control unit is configured to compute a disturbance torque based on the feedback control torque and a predetermined angle. The electronic control unit is configured to correct the feedback control torque by using the disturbance torque. The electronic control unit is configured to correct the command value reflecting the corrected feedback control torque, based on an applied torque.

Abstract: A steering control device configured to control a steering device, the steering device including a steering shaft to which a handle is detachably coupled and a motor configured to generate torque that is given to the steering shaft. The steering control device includes a processing circuit configured to execute a process for controlling driving of the motor. The process for controlling the driving of the motor includes a lock process of driving the motor such that a rotation position of the steering shaft is fixed at a specific position, in a state where the handle has been detached from the steering shaft.

Abstract: An auxiliary power supply unit includes an auxiliary power supply device and a downstream power supply line group connecting the auxiliary power supply device to motor units. The auxiliary power supply device includes: an auxiliary power supply provided on a power supply path; and a switching circuit configured to switch the connection state of the auxiliary power supply to the power supply path. The connection state of the auxiliary power supply includes a boost state in which the auxiliary power supply is connected in series with the external power supply. The downstream power supply line group includes branch first downstream drive lines and branch second downstream drive lines. Each of the upstream ends of the branch first downstream drive lines and the branch second downstream drive lines is connected to the power supply path at a position downstream of the auxiliary power supply.

Abstract: A rotation angle detection device includes a correction-object driven gear that is a driven gear meshing with a main driving gear, a first sensor that is configured to generate an electrical signal based on rotation of the correction-object driven gear, and an electronic control unit that computes a driven-side rotation angle based on the electrical signal. The electronic control unit is configured to store a correction angle used to correct the driven-side rotation angle when computing the driven-side rotation angle. The correction angle is a predetermined deviation in a predetermined angle domain obtained as an average value in which deviations of the number equal to the integer and corresponding to a same relative rotation angle is averaged, so as to be deviation in an angle domain of 0 to 360 degrees.

Abstract: Examples of the ester oil include diester oils such as dibutyl sebacate, dioctyl sebacate, di-2-ethylhexyl sebacate, dioctyl adipate, diisodecyl adipate, ditridecyl adipate, ditridecyl phthalate, and methyl acetyl ricinolate; aromatic ester oils such as trioctyl trimellitate, tridecyl trimellitate, and tetraoctyl pyromellitate; polyol ester oils such as trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol-2-ethylhexanoate, and pentaerythritol pelargonate; carbonate oil; complex ester oil which is an oligoester of polyhydric alcohol and mixed fatty acid including dibasic acid and monobasic acid; etc.

Abstract: A steering control device is configured to control a steering system including a turning mechanism that includes a motor configured to generate a motor torque that serves as power for moving a turning shaft to turn turning wheels of a vehicle. The steering control device includes a control unit configured to control a target control value serving as a target of a control value for controlling the motor torque of the motor. The control unit is configured to perform compensation for the target control value; acquire an offset value; and change the target control value such that the acquired offset value decreases gradually.

Abstract: A rack guide bearing for meshing a pinion and vehicle steering system rack, the guide bearing including a wall, a first portion is tubular and defines an axis and internal channel around the axis opening at the guide bearing first end, and opening onto a second portion of the wall opposite the first end, an internal channel section transverse to the axis and inserts the rack into the channel according to the rack axis parallel to the guide bearing axis, the guide bearing including an internal channel inner surface of the guide bearing wall's first portion and an inner surface of the guide bearing wall's second portion, the inner surfaces are in slipping contact with a slipping surface of the rack opposite to a toothing of the rack, when the rack is inserted inside the first portion of the wall's internal channel according to the axis of the rack.

Abstract: A method for controlling a steering system of a motor vehicle, including first and second channels in parallel, each including an electric power unit delivering an assist force to the steering system of the vehicle, in order to obtain the sum of two delivered assist forces, corresponding to the total assist force required, the method including: evaluating the channel having the lowest power unit power supply voltage value; defining a master channel function delivering an initial portion of the total assist force requirement and a slave channel function delivering a variable complementary portion of the assist force, corresponding to the difference between the initial portion of force actually delivered and the total force requirement; and pairing the master channel function with the channel having the lowest power unit power supply voltage value, and the slave channel function with the channel having the highest power unit power supply voltage value.

Abstract: A wheel bearing device includes: an inner shaft including a wheel mounting flange on one side in an axial direction and including double row inner raceway surfaces on the other; an outer ring including double row outer raceway surfaces facing the inner surfaces; a plurality of first balls interposed between a first inner raceway surface located on the one side in the axial direction out of the double row inner raceway surfaces and a first outer raceway surface located on the one side in the axial direction out of the double row outer raceway surfaces; and a plurality of second balls interposed between a second inner raceway surface and a second outer raceway surface. The plurality of first balls and the plurality of second balls have the same diameter. A contact angle of the plurality of first balls is smaller than a contact angle of the plurality of second balls.

Abstract: A grease composition contains a base oil, a thickener, and a conductive additive (A), the base oil is a trimellitic acid ester, the conductive additive (A) is a mixture containing sepiolite and bentonite and is an organically modified additive, and an amount of the conductive additive (A) with respect to a total amount of the base oil, the thickener, and the conductive additive (A) is 3 to 10 mass %.

Abstract: A steering control device includes an electronic control unit. The electronic control unit is configured to acquire a limit position determination angle corresponding to an absolute steering angle when it is determined that movement of a turning shaft is limited, to compare a first stroke width which is a sum of an absolute value of the limit position determination angle on a right side and an absolute value of the limit position determination angle on a left side with a stroke threshold value corresponding to an entire stroke range of the turning shaft when the limit position determination angles on the right and left sides are acquired, and to set end-position-corresponding angles on the right and left sides based on the limit position determination angles on the right and left sides when the first stroke width is greater than the stroke threshold value.

Abstract: Provided is a breeding apparatus that can facilitate disposition and collection of a spawning bed. A breeding apparatus includes a breeding area forming member that forms breeding areas for organisms and is open at least at the bottoms of the breeding areas, and a spawning bed sheet that forms the bottom surfaces of the breeding areas, has a belt shape, and is provided so as to be movable in a longitudinal direction of the belt shape relative to the breeding area forming member.

Abstract: A steering control device includes an electronic control unit. The electronic control unit is configured to perform end contact relaxation control for correcting a current command value such that a decrease of an end separation angle indicating a distance of an absolute steering angle from an end-position-corresponding angle is limited when the end separation angle is equal to or less than a predetermined angle and to perform partial release control for decreasing a correction value of the current command value due to execution of the end contact relaxation control based on a steering torque which is input to a steering system when a vehicle is intended to travel while turning at the time of execution of the end contact relaxation control.

Abstract: A power supply system includes a system control unit, an auxiliary power supply, and an auxiliary-power-supply control unit. The system control unit and the auxiliary-power-supply control unit are configured such that information of at least one control unit of the system control unit and the auxiliary-power-supply control unit is able to be output to another control unit of the system control unit and the auxiliary-power-supply control unit. The at least one control unit is configured to output information indicating that an operation of the at least one control unit is stopped to the other control unit when the at least one control unit stops the operation of the at least one control unit.

Abstract: A motor control device controls a motor including winding groups of two systems. The motor control device includes a board and sensors provided on the board and configured to generate electric signals based on rotation of the motor. The board includes a first area and a second area defined across a boundary line. The first area and the second area include power circuit areas, control circuit areas, signal paths through which the electric signals are transmitted to the control circuit areas, and power paths through which electric power supplied from a power supply is transmitted to the power circuit areas, respectively. The signal paths are provided not to cross the power paths and the power circuit areas when viewed in an axial direction of the motor, respectively.

Abstract: A turning control device includes a first processor, a second processor, a third processor, and a fourth processor. The first processor calculates a torque command value based on a difference between a target pinion angle and a pinion angle. The second processor calculates a compensation value compensating resistance of a turning mechanism based on a difference between a target pinion angular velocity and a pinion angular velocity. The third processor limits a variation range of the torque command value based on a limit value of the torque command value and limits a variation range of the compensation value based on a limit value of the compensation value. The fourth processor calculates a turning torque command value by subtracting the compensation value from the torque command value. The third processor changes the limit values based on a traveling state of a vehicle.

Abstract: An inner joint member has, on an opening portion side of an outer joint member, a holding portion that has a bottomed concave shape into which a sleeve for supporting a boot covering the opening portion is press-fitted, and a relief portion that is provided on part of a convex outer spherical surface at the opening portion side, and that has a smaller diameter than an outer diameter of the convex outer spherical surface corresponding to a press-fitting range of the holding portion into which the sleeve is press-fitted.

Abstract: A steering system configured to steer a vehicle includes a rotary shaft to which an operation member is coupled; a moving unit configured to move the operation member between a normal position that is a position where the operation member is operated by a driver, and a storage area located ahead of the normal position; an external force detection unit configured to detect an external force externally applied to the operation member while the operation member is moving; a determination unit configured to determine whether a direction of the external force detected by the external force detection unit is the same as a moving direction of the operation member; and a control unit configured to control operation of the steering system based on a determination result from the determination unit.