Abstract: An adjustable steering apparatus includes: a movable bracket to which a steering jacket having a steering wheel is fixed and to which a movable telescopic member having a tooth portion is fixedly mounted; a stationary bracket which is disposed externally of the movable bracket and fixed to a vehicle body, and to which a stationary tilt member having a tooth portion is fixedly mounted; a movable tilt member having a tooth portion meshingly engageable with the tooth portion of the stationary tilt member; and a stationary telescopic member having a tooth portion meshingly engageable with the tooth portion of the movable telescopic member. Both the movable tilt member and the stationary tilt member have openings. The tooth portion of the stationary telescopic member is designed to be meshed with the tooth portion of the movable telescopic member as penetrating through the movable tilt member and stationary tilt member.

Abstract: A method of heat-treating a rack bar includes a step of continuously conveying a rack bar provided with a rack teeth portion and a ball screw portion by a quenching means, and a step of sequentially applying a quenching treatment to each circumferential surface of the rack teeth portion and the ball screw portion. The quenching treatment is preferably and sequentially applied to each entire circumferential surface of the rack teeth portion and the ball screw portion.

Abstract: An upper lid forming an upper portion of a casing is formed by a metal (an aluminum alloy or the like) having a high heat radiation performance. The upper lid serves as a heat sink (a heat radiation member) radiating heat generated from electronic components within the casing to an external portion. A plurality of flat plate-shaped heat radiation fins are provided in an upper surface of the heat sink. A groove forming each of the heat radiation fins is open in a side surface of the heat sink without forming a step.

Abstract: A motor includes a rotor having a permanent magnet fitted thereon, and a stator having an inner peripheral surface spaced a predetermined distance from an outer peripheral surface of the rotor in opposed relation thereto, and the stator is press-fitted in a motor case to be fixed thereto with its outer peripheral surface. A plurality of projecting portions are formed on an inner peripheral surface of the motor case. Recess portions for engagement with the respective projecting portions are formed in the outer peripheral surface of the stator. When the stator is press-fitted into the motor case, the stator is fixed to the motor case with inner bottom surfaces of the recess portions serving as press-fitting surfaces. The projecting portions of the motor case are engaged respectively in the recess portions of the stator, thereby preventing the rotation of the stator relative to the motor case.

Abstract: A power transmission apparatus is provided with a housing, which rotates together with an input shaft, a differential mechanism, and a main clutch. The main clutch links the input shaft and the first output shaft. The differential mechanism distributes drive force that is inputted from the input shaft via the housing into a first output shaft and a second output shaft. The differential mechanism is provided with a ring gear that is provided within the housing, a sun gear that is provided within the ring gear, and a planetary gear. The planetary gear is engaged with the ring gear and the sun gear and supported in such a manner as to be orbital and rotational. The first output shaft is linked to the ring gear. The main clutch is formed of a plurality of outer clutch plates and inner clutch plates, which are provided on the inner circumferential surface of the housing and on the outer circumferential surface of the ring gear.

Abstract: A boot for constant-velocity universal joint comprises a major-diameter cylindrical portion 2, a minor-diameter cylindrical portion 3 being separated away from and being put in place concentrically with the major-diameter cylinder portion 2, and having a smaller diameter than that of the major-diameter cylindrical portion 2, and an intermediate portion 10 connecting the major-diameter cylindrical portion 2 with the minor-diameter cylindrical portion 3. The intermediate portion 10 comprises a stretchable bellows portion 19 being connected with the minor-diameter cylindrical portion 3 integrally, and a rigidity-producing portion 11 being connected with the bellows portion 19 and the major-diameter cylindrical portion 2 integrally. The rigidity-producing portion 11 enlarges diametrically from the bellows portion 19 toward the major-diameter cylindrical portion 2, and additionally at least an outer peripheral surface 101 of the rigidity-producing portion 11 has a plurality of shoulders 61 in a stepwise manner.

Abstract: A driving power distribution control apparatus includes a torque coupling and an ECU. The torque coupling is provided in a drive power transmission system that transmits torque of an engine to each of a plurality of wheels. Based on the frictional engaging force of an electromagnetic clutch, the torque coupling is capable of changing the amount of torque that can be transmitted to right and left rear wheels, which serve as auxiliary drive wheels. The ECU controls the operation of the torque coupling based on the driving state of the vehicle. When slip of any one of the wheels is detected, the ECU reduces the torque transmission amount to a predetermined torque or a lower value.

Abstract: In an outer ring, a first ball filling slot which extends from a first raceway groove to a first end face of one side of an axial direction is formed, and in an inner ring, a second raceway groove and a second ball filling slot which extends from the second raceway groove to a second end face of one side of the axial direction are formed. Circumferential extension grooves which extend from one of the first ball filling slot and the second ball filling slot by a predetermined length in a circumferential direction at the opposite sides of the circumferential direction of the ball filling slot and extend from the first raceway groove to the first end face in the axial direction are formed.

Abstract: An axle bearing apparatus includes a hub shaft including a wheel-mounting flange formed at its outer end portion, and a cylindrical portion formed on an inner side surface of the flange, a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings, and a slinger having a through hole formed through its central portion. The through hole is fitted on the cylindrical portion such that an outer diameter of the slinger is generally equal to an outer diameter of the flange, and the slinger is press-clamped to the inner side surface of the flange by bolts press-fitted respectively in a plurality of bolt holes formed in the flange. An adhesive bonds the slinger to the flange.

Abstract: A motor drive circuit includes a transistor that is connected in parallel to a first voltage divider resistance that forms a voltage divider circuit between the source and the gate of a second interrupting MOSFET. If a reverse connection of the battery occurs, a compensation drive circuit turns on the transistor using an output from the battery so that the source and the gate of the second interrupting MOSFET are short-circuited. Thus, formation of a closed circuit that includes the battery and the inverter circuit is prevented. As a result, it is possible to prevent both terminals of the battery from being short-circuited.

Abstract: A magnetic shield made of magnetic material in the shape of a thin cylinder is externally fitted and fixed on a cylindrical mold member holding magnetic flux collecting rings so that it has extended sections with appropriate length on both sides in the axial direction, and therefore magnetic noise from outside in the radial direction is shielded directly by the outer surface of the magnetic shield, magnetic noise from both sides in the axial direction is shielded by concentrating the magnetic noise on the end faces of the magnetic shield, and the influence on the magnetic flux collecting rings held in the mold member is eliminated.

Abstract: An ECU determines whether the orientation of the vehicle is deflecting at the time of braking. In addition, in a case where it is determined that the orientation of the vehicle is deflecting, the ECU controls operation of an EPS actuator in order to reduce the assist force provided to the steering system.

Abstract: A cam shaft assembly is provided which includes a rolling bearing providing for effective oil feeding to a raceway. The assembly includes: a shaft 1; the rolling bearings 3 rotatably supporting the shaft 1; and cams 2 fitted on the shaft 1. The rolling bearing 3 includes a circumferential groove formed on an outer periphery of an outer ring 5 and an axial groove extending from place in the circumferential groove and opening on a lateral side of the outer ring 5.

Abstract: An axle bearing apparatus includes a hub shaft including a wheel-mounting flange formed at its outer end portion, and a cylindrical portion formed on an inner side surface of the flange, a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings, and a slinger having a through hole formed through its central portion. The through hole is fitted on the cylindrical portion such that an outer diameter of the slinger is generally equal to an outer diameter of the flange, and the slinger is press-clamped to the inner side surface of the flange by bolts press-fitted respectively in a plurality of bolt holes formed in the flange. O-rings are interposed between the flange and the slinger.

Abstract: An electric power steering system includes: a band-stop filter 15a having a transfer function G1(s) for suppressing resonance, and a phase compensator 15b having a transfer function G2(s). The above function G1(s) is represented by an expression G1(s)=(s2+2?11?1+?12)/(s2+2?12?1+?12), where s is a Laplace operator, ?11 is a damping coefficient, ?12 is a damping coefficient, and ?1 is an angular frequency. On the other hand, the above function G2(s) is represented by an expression G2(s)=(s2+2?21?2+?22)/(s2+2?22?2+?22),where s is a Laplace operator, ?21 is a damping coefficient, ?22 is a damping coefficient, and ?1 is an angular frequency. Furthermore, the above damping coefficients ?21, ?22 satisfy an expression ?2124 ?22?1.Thus, a filter such as a phase compensator may attain a design freedom while preventing the increase of arithmetic load, whereby both the suppression of resonance and a good assist response in a normal steering speed region, for example, may be achieved.

Abstract: A grinding machine includes: a workhead (22) that rotatably supports a solid cylindrical or hollow cylindrical workpiece (W); a grinding wheel (43) that moves relative to the workhead (22) in a direction that intersects with a rotation axis of the workhead (22) to grind an outer peripheral surface of the workpiece (W); a measuring apparatus (50) that measures a position of an outer peripheral surface of the workpiece (W) corresponding to a rotation angle of the workhead (22); an outer peripheral surface shape calculation unit (64) that calculates an outer peripheral surface shape of the workpiece (W) on the basis of the position of the outer peripheral surface of the workpiece (W) measured by the measuring apparatus (50) during grinding; and a grinding condition determination unit (65) that determines a condition of grinding, which is performed after measurement by the measuring apparatus (50), on the basis of the calculated outer peripheral surface shape of the workpiece (W).

Abstract: A magnetic encoder is provided which can prevent a magnetized member from being separated from a fixed member to which the magnetized member is fixed under a severe temperature environment. The encoder includes a fixed member which is fixed to a rotating member and a magnetized member 15 which is attached to the fixed member. The magnetized member 15, which is molded by mixing a magnetic powder in a resin, is bonded to the fixed member with a silicone resin based adhesive, and a thickness of an adhesive layer of the silicone resin based adhesive is 50 ?m or more and 100 ?m or less. In addition, an adhesive surface 17 of the fixed member with the magnetized member 15 is worked to be roughened.

Abstract: In an electric power steering system, a motor drive controller that has an inverter circuit board and a control circuit board housed in a control case is provided so as to overlap a control case fixation surface formed at an end portion of a gear housing in the axial direction of a steering shaft, so that it is possible to reduce the projection in the axial direction of a motor as compared to the conventional one. In addition, a metallic board is used for the inverter circuit board and the inverter circuit board is fixed to the control case fixation surface so as to be in surface contact therewith, so that it is possible to efficiently dissipate the heat generated on the inverter circuit board into the gear housing and a fixation support plate.

Abstract: A vehicle 1 has a torque coupling 8, which is located in a driving power transmission system for transmitting the torque of an engine 2 to front and rear wheels 13f, 13r. The torque coupling 8 changes the torque distribution by adjusting the frictional engaging force of an electromagnetic clutch 16. The vehicle 1 also has a 4WD ECU 21 (CPU), which controls the operation of the torque coupling 8 based on the driving state. The 4WD ECU 21 (CPU) estimates a transfer case oil temperature Tptu. When the transfer case oil temperature Tptu is higher than or equal to a first predetermined transfer case oil temperature KTptu1, the 4WD ECU 21 executes overheat prevention control.

Abstract: In a flexible manufacturing system, a control apparatus for a transfer device stores in a memory section thereof correlation information for correlating workpieces (ante-machining workpieces) to be attached to pallets with blank materials contained in blank material baskets. When a selected one of the pallets is to be transferred to a pallet loading station, the control apparatus determines blank materials corresponding to the workpieces to be attached to the selected one of the pallets based on the correlation information and then, controls the transfer device to transfer a blank material basket containing the determined blank materials from a basket rack to a basket loading station located adjacent to the pallet loading station in connection with transferring the selected one of the pallets to the pallet loading station. Thus, when the selected one of the pallets is transferred to the pallet loading station, it becomes possible to reduce the time taken for the worker to search for the blank material basket.