Abstract: An upper bracket of a steering column apparatus includes a vehicle body-side bracket including side plates, a tube-side bracket including side plates, and a support shaft. The vehicle body-side bracket has first coupling holes in the side plates. The tube-side bracket has second coupling holes in the side plates. The first coupling holes and the second coupling holes are configured such that the vehicle body-side bracket and the tube-side bracket are coupled together by inserting the support shaft through the first coupling holes and the second coupling holes. Each of the second coupling holes is open rearward and is configured such that, when an axial load equal to or greater than a predetermined load is applied to an upper tube, fitting between the second coupling hole and the support shaft is terminated and the tube-side bracket moves forward.

Abstract: A column jacket includes a hollow outer jacket having a pair of clamped portions disposed to sandwich a slit between the clamped portions and a tubular inner jacket having, in an area where the inner jacket is fitted in the outer jacket, an elongated hole extending in an axial direction. A clamping mechanism clamps the pair of clamped portions with a pair of side plates of a fixed bracket. The elongated hole is disposed on any one of a first side and a second side, in the lateral direction, of a vertical plane passing through a central axis of the inner jacket, at a position other than on a straight line that extends in a vertical direction through the central axis.

Abstract: A drive force transfer device is mounted on a four-wheel-drive vehicle having main drive wheels and auxiliary drive wheels. A cam mechanism presses a main clutch in the axial direction. An electromagnetic clutch mechanism actuates the cam mechanism and has an electromagnetic coil and a pilot clutch. When the electromagnetic coil is not energized, the pressing force of the cam mechanism, which is generated because of drag torque of the pilot clutch in the case where a output rotary member rotates faster than a input rotary member, is smaller than that generated because of drag torque of the pilot clutch in the case where the input rotary member rotates faster than the output rotary member.

Abstract: A motor control device is configured to control a motor as a dynamic force source depending on a position of a rotation detection object that rotates while interlocking with the motor, the motor and the rotation detection object being included in a mechanical apparatus including a plurality of constituent elements that interlock with each other. The motor control device includes a computation circuit configured to compute an absolute rotation angle of the rotation detection object, using a relative rotation angle of a first constituent element of the mechanical apparatus that is detected through a relative angle sensor provided in the mechanical apparatus, and a rotation number conversion value resulting from converting an absolute rotation angle of a second constituent element of the mechanical apparatus that is detected through an absolute angle sensor provided in the mechanical apparatus, into a rotation number of the first constituent element.

Abstract: An assist device includes an actuator; a first body-worn unit including a belt body; right and left arms; and second body-worn units that are attached to distal parts of the arms and worn on thighs of the user. The belt body includes an upper belt and a lower belt provided on a back side of the user, the upper belt and the lower belt respectively extending along an upper side and a lower side of buttocks of the user. The assist device includes a restraining belt that connects the second body-worn units to the lower belt and restrains the lower belt from moving upward.

Abstract: A sensor device that can suppress deformation of a holder due to a molding pressure applied during injection molding of a housing is provided. A second magnetism collection portion holder has a suppression portion that projects from a second holder body portion toward a first holder and that suppresses deformation of the holder due to the molding pressure applied during the injection molding. The distal end surface of the suppression portion abuts against the inner surface of a first holder body portion with the first holder and a second holder assembled to each other with a sensor unit interposed therebetween.

Abstract: A control circuit connected to a control device configured to control a motor connected to a rotation shaft that is convertible into a turning angle of a turning wheel, the control circuit includes a main circuit configured to calculates a rotation number indicating a rotational state of the rotation shaft based on a detection signal from a rotation angle sensor configured to detect a rotation angle of the motor as a relative angle, a detection result communication unit configured to detect whether or not there is an abnormality in the main circuit and output a detection result to the control device, and a pseudo abnormality generating unit configured to set the detection result to be abnormal based on a pseudo abnormal signal from the control device.

Abstract: An alkali metal ion capacitor that is capable of operating in a high-temperature environment at 85° C. The alkali metal ion capacitor is provided with: a positive electrode active material capable of adsorbing and desorbing alkali metal ions; a positive electrode binder for binding the positive electrode active material; a negative electrode active material capable of storing and releasing alkali metal ions; a negative electrode binder for binding the negative electrode active material; and an electrolytic solution that contains an organic solvent and an imide-based alkali metal salt. The negative electrode active material is predoped with alkali metal ions. The positive electrode binder has a Hansen solubility parameter-based RED value of more than 1 with respect to the electrolytic solution.

Abstract: A motor control device controls an electric motor in a steering system including a hydraulic mechanism that applies a part of a turning force to a turning mechanism and the electric motor that applies the other part of the turning force. The motor control device includes: an actual turning angle acquiring unit configured to acquire an actual turning angle of turning wheels; a target turning angle acquiring unit configured to acquire a target turning angle which is a target value of a turning angle; a control value generating unit configured to generate a motor control value for controlling the electric motor such that the actual turning angle reaches the target turning angle; and an instruction value calculating unit configured to generate an instruction value which is obtained by filtering a natural frequency of the steering system in response to the motor control value.

Abstract: A steering device is connected to a turning mechanism to which a part of a turning force is applied by a hydraulic mechanism. The steering device includes an electric motor, a rotation angle detector, and a steering control device. The steering control device is configured to acquire a target turning angle which is a target value of a turning angle of turning wheels, to control the electric motor such that a turning angle of the turning wheels reaches the target turning angle, to estimate a delay of an actual turning angle of the turning wheels with respect to the target turning angle based on a delay model with the detected rotation angle as an input, to output delay information, and to correct the target turning angle based on the delay information.

Abstract: An assist device includes a first body-worn unit that is worn on at least shoulders or a chest of a user; a second body-worn unit that is worn on each of right and left legs or a waist of the user; a belt body provided to extend along a back side of the user, from the first body-worn unit to the second body-worn unit; an actuator provided in the first body-worn unit or the second body-worn unit and allows a part of the belt body to be reeled and unreeled; a battery configured to supply electricity to the actuator; and a controller configured to control the actuator. When a remaining charge level of the battery has decreased to a predetermined set value, the controller executes a vibrating motion process of causing the actuator to perform a vibrating motion of intermittently repeating reeling of a minute amount of the belt body.

Abstract: A vehicle steering device includes an electric motor applying a steering force to a vehicle turning mechanism, a first setting portion setting a target assist torque in accordance with a steering torque, a second setting portion setting an angle controlling target torque for bringing an angular deviation between a target steering angle and an actual steering angle close to zero, a restriction processing portion restricting the angle controlling target torque set by the second setting portion, a first calculating portion calculating a target automatic steering torque using the angle controlling target torque after the restriction process by the restriction processing portion, and second calculating portions performing weighted addition of the target automatic steering torque and the target assist torque in accordance with a value that changes in accordance with a driver input to calculate a target motor torque that is a electric motor target motor torque value.

Abstract: A sensor device includes a main driving gear, a driven gear, a biasing member, a support member, a rotational angle sensor, and a magnetic shield. The driven gear includes a gear portion and a shaft portion. The shaft portion is provided with a permanent magnet. The biasing member is configured to bias the driven gear toward the main driving gear. The support member supports the driven gear and the biasing member. The magnetic shield rotatably surrounds the shaft portion. The biasing member biases the driven gear toward the main driving gear by biasing the magnetic shield toward the main driving gear. The sliding resistance between the magnetic shield and the driven gear is lower than the sliding resistance between the magnetic shield and the biasing member.

Abstract: A manual steering command value generation unit generates a manual steering command value using steering torque. An integrated angle command value computation unit computes an integrated angle command value by adding the manual steering command value to an automatic steering command value. A control unit performs angle control on an electric motor on the basis of the integrated angle command value. The control unit includes: a basic torque command value computation unit that computes a basic torque command value on the basis of the integrated angle command value; a disturbance torque estimation unit that estimates disturbance torque other than motor torque that is generated by the electric motor and acts on an object to be driven by the electric motor; and a disturbance torque compensation unit that corrects the basic torque command value in accordance with the disturbance torque.

Abstract: The four-wheel steering system includes a rear-wheel steering system that steers rear wheels of the vehicle in accordance with a steering angle of a steering wheel. When the vehicle speed is lower than a vehicle speed threshold, the rear-wheel steering system steers the rear wheels in an opposite direction to that in which the front wheels are steered. When the vehicle speed is lower than the vehicle speed threshold, the rear-wheel steering system sharply increases the rate of increase in target steered angle of the rear wheels with respect to an increase in steering angle when an absolute value of the steering angle is equal to or larger than an absolute value of an angle threshold. The front-wheel steering system has a motor that is a source of a steering assist force and a first ECU that controls the motor in accordance with the steering state.

Abstract: A clutch device includes a case, a clutch housing, a multi-disc clutch, and a rolling bearing. The clutch housing is housed in the case. The clutch housing includes a cylindrical portion including a housing space defined in the cylindrical portion, and a wall extending radially inward from an end of the cylindrical portion. The multi-disc clutch is housed in the housing space and includes a plurality of clutch plates. The rolling bearing includes an inner ring, an outer ring, and a plurality of rolling elements disposed between the inner and outer rings. The inner ring of the rolling bearing is attached to an inner ring attachment portion of the case. The outer ring of the rolling bearing is attached to an outer ring attachment portion of the wall of the clutch housing. The rolling bearing supports the clutch housing such that the clutch housing is rotatable relative to the case.

Abstract: A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and a cage that holds the balls. The cage includes an annular portion and a plurality of cage bars. Each of the balls is received a pocket between each pair of cage bars that is adjacent in the circumferential direction. A portion of the pocket in a second axial direction opens with a dimension that is smaller than a diameter of the balls. The cage bar includes a flat surface that is continuous with an inner peripheral surface of the annular portion, and an inclined surface that extends away from the inner ring toward the second axial direction from the flat surface.

Abstract: An assist device includes a first body-worn unit, a second body-worn unit, a belt body, an actuator, and a controller. The actuator includes a pulley and a motor that causes the pulley to reel and unreel a part of the belt body. The controller is configured to execute a mode switching process of switching a control mode of the motor to one a restriction mode in which a maximum rotation speed of the motor is restricted to a predetermined rotation speed and a normal mode in which the motor is operated within a rotation speed range higher than the predetermined rotation speed.

Abstract: A control apparatus configured to control a four-wheel drive vehicle configured to drive right and left front wheels and right and left rear wheels includes an electronic control unit. The electronic control unit calculates a vehicle body speed based on rotation speeds of the wheels and a cumulative value of accelerations in a longitudinal direction of the vehicle. The accelerations are detected by an acceleration sensor. The electronic control unit calculates the vehicle body speed based on the cumulative value of the accelerations. The electronic control unit calculates a correction value based on a lowest rotation speed among the rotation speeds of the wheels under a predetermined condition. The electronic control unit performs correction by using the correction value to make the vehicle body speed closer to a vehicle body speed conversion value of the lowest rotation speed.

Abstract: The steel material for a carburized bearing part according to the present invention contains, by mass %, C: 0.25 to 0.45%, Si: 0.15 to 0.45%, Mn: 0.40 to 1.50%, P: 0.015% or less, S: 0.005% or less, Cr: 0.60 to 2.00%, Mo: 0.10 to 0.35%, V: 0.20 to 0.40%, Al: 0.005 to 0.100%, Ca: 0.0002 to 0.0010%, N: 0.0300% or less and O: 0.0015% or less, with the balance being Fe and impurities, and satisfies Formulae (1) to (3). 1.20<0.4Cr+0.4Mo+4.5V<2.75??(1) A1/A2>0.50??(2) 2.7C+0.4Si+Mn+0.45Ni+0.8Cr+Mo+V>2.55??(3) Formula (2) shows an area fraction of sulfides containing Ca in an amount of 1 mol % or more among sulfides having an equivalent circular diameter of 1 ?m or more.