Abstract: A controller for determining degradation of the motor, the controller includes a first acquisition unit for acquiring an impedance between the coil and the core, an estimation unit for estimating the total amount of heat input to the motor based on the magnitude of the impedance between the coil and the core, and a determination unit for determining the remaining life due to thermal degradation of the motor based on the total amount of heat input estimated by the estimation unit.

Abstract: In a power transmission device for a vehicle, comprising: a transaxle casing in which a motor and a voltage power line are housed; and a cover attached so as to close an opening of the transaxle casing, the cover includes a flange portion provided at an outer edge portion of the cover and connected to the opening of the transaxle casing, a bearing support portion for a bearing that supports a rotary shaft rotatably, and a cover wall provided between the flange portion and the bearing support portion, and a valve body is attached to the cover wall so as to be positioned at a portion of the cover wall at which a direct distance between the bearing support portion and the flange portion surrounding the bearing support portion is longest.

Abstract: A parking lock mechanism comprises: a parking gear disposed on a power transmission member mechanically coupled to a drive wheel; and a parking pawl provided with a lock claw configured to mesh with the parking gear and switching between a lock state in which the lock claw is meshed with the parking gear and an unlock state in which meshing between the lock claw and the parking gear is released. In the mechanism, the lock claw includes a first end surface and a second end surface opposite to each other in a face width direction, the lock claw includes a tooth tip surface provided with a retreated portion at a corner on the second end surface side, and a position of a center of gravity of the parking pawl is on the second end surface side relative to a center plane in the face width direction of the lock claw.

Abstract: In a power transmission device for a vehicle, comprising: a transaxle casing in which a motor and a voltage power line are housed; and a cover attached so as to close an opening of the transaxle casing, the cover includes a flange portion provided at an outer edge portion of the cover and connected to the opening of the transaxle casing, a bearing support portion for a bearing that supports a rotary shaft rotatably, and a cover wall provided between the flange portion and the bearing support portion, and a valve body is attached to the cover wall so as to be positioned at a portion of the cover wall at which a direct distance between the bearing support portion and the flange portion surrounding the bearing support portion is longest.

Abstract: A parking lock mechanism comprises: a parking gear disposed on a power transmission member mechanically coupled to a drive wheel; and a parking pawl provided with a lock claw configured to mesh with the parking gear and switching between a lock state in which the lock claw is meshed with the parking gear and an unlock state in which meshing between the lock claw and the parking gear is released. In the mechanism, the lock claw includes a first end surface and a second end surface opposite to each other in a face width direction, the lock claw includes a tooth tip surface provided with a retreated portion at a corner on the second end surface side, and a position of a center of gravity of the parking pawl is on the second end surface side relative to a center plane in the face width direction of the lock claw.

Abstract: An electronic control unit stores a vehicle load at the time when the vehicle is switched into an ignition off state, stops operation of an electric oil pump when the vehicle load is small, and operates the electric oil pump when the vehicle load is large. Thus, a decrease in service life due to an increase in the number of times of the start of the electric oil pump is suppressed, and, when it is estimated that the vehicle load is large, the response of the start of a vehicle, which makes a driver experience a feeling of strangeness, is improved by starting the electric oil pump together with switching the vehicle into an ignition on state.

Abstract: An electronic control unit stores a vehicle load at the time when the vehicle is switched into an ignition off state, stops operation of an electric oil pump when the vehicle load is small, and operates the electric oil pump when the vehicle load is large. Thus, a decrease in service life due to an increase in the number of times of the start of the electric oil pump is suppressed, and, when it is estimated that the vehicle load is large, the response of the start of a vehicle, which makes a driver experience a feeling of strangeness, is improved by starting the electric oil pump together with switching the vehicle into an ignition on state.

Abstract: According to one embodiment, a semiconductor memory device includes first and second select transistors, first and second bit lines, a first switch circuit and a sense amplifier. The first select transistor is electrically connected to the first memory cell. The first bit line is electrically connected to the first select transistor. The second select transistor is electrically connected to the second memory cell. The second bit line is electrically connected to the second select transistor. The first switch circuit is electrically connected between the first bit line and the second bit line. The sense amplifier is electrically connected to the second bit line, and senses data stored in the first and second memory cells.

Abstract: A memory array includes a plurality of twin cells, each of the twin cells composed of a first storage element and a second storage element configured to hold binary data according to a difference in threshold voltage between them, the first storage element and the second storage element each being electrically rewritable. Upon receiving a request to read the twin cell, when the threshold voltage of the first storage element forming the twin cell is lower than an erasure determination level and the threshold voltage of the second storage element forming the twin cell is lower than the erasure determination level, an output circuit masks the data stored in the twin cell and outputs the masked data.

Abstract: A memory array includes a plurality of twin cells, each of the twin cells composed of a first storage element and a second storage element configured to hold binary data according to a difference in threshold voltage between them, the first storage element and the second storage element each being electrically rewritable. Upon receiving a request to read the twin cell, when the threshold voltage of the first storage element forming the twin cell is lower than an erasure determination level and the threshold voltage of the second storage element forming the twin cell is lower than the erasure determination level, an output circuit masks the data stored in the twin cell and outputs the masked data.

Abstract: A planetary gear set includes a sun gear; pinions that are positioned around the sun gear and that mesh with the sun gear; and a ring gear that is positioned on the outer side of the pinions and that meshes with the pinions. Each pinion has a plurality of teeth on the outer surface thereof. Each tooth has a first tooth surface and a second tooth surface on opposite sides of the tooth, which can contact tooth surfaces of the sun gear and the ring gear. The deviation of the first tooth surface from the corresponding reference surface differs from the deviation of the second tooth surface from the corresponding reference surface.

Abstract: A planetary gear set includes a sun gear; pinions that are positioned around the sun gear and that mesh with the sun gear; and a ring gear that is positioned on the outer side of the pinions and that meshes with the pinions. Each pinion has a plurality of teeth on the outer surface thereof. Each tooth has a first tooth surface and a second tooth surface on opposite sides of the tooth, which can contact tooth surfaces of the sun gear and the ring gear. The deviation of the first tooth surface from the corresponding reference surface differs from the deviation of the second tooth surface from the corresponding reference surface.

Abstract: A sealing structure of a casing includes a housing having a flow path, a case having a flow path communicating with the flow path when combined with the housing, a tubular knock pin provided to fit to both of the housing and the case and surround the flow path in a joint portion between the housing and the case, and an FIPG holding portion provided on an outer circumferential side of the knock pin.

Abstract: A heat resistance resin composition having superb low-temperature adhesiveness and a polyimide/metal laminate which is superior in solder heat resistance and hardly generates swelling when forming a Au—Sn bond or Au—Au bond, which are used for lead-free soldering and COF packaging.

Abstract: A length measuring device is used for measuring a length of from a virtual intersection of the extension lines of two surfaces extending along the respective sides A1, A2 to ends of the respective sides of a bent member. The length measuring device is comprised of a rotary body 20 rotating about the virtual intersection as a center O and a scale body 30 having graduations (divisions). The rotary body 20 has a contacting side 20c with which one side of the bent member A is brought into contact, while the scale body 30 has a contacting side 30c with which the other side of the bent member A is brought into contact. The two contacting sides 20c, 30c are arranged on straight lines drawn through the virtual intersection.

Abstract: An insulating adhesive tape which comprises a base supporting film and an adhesive layer formed on at least one surface thereof, said adhesive layer being formed of a thermoplastic polymer comprising a thermoplastic polyimide, wherein said thermoplastic polymer has a glass transition temperature ranging from 180.degree. C. to 280.degree. C. and an elastic modulus ranging from 10.sup.10 dyne/cm.sup.2 to 10.sup.11 dyne/cm.sup.2 at 25.degree. C., said modulus including a value ranging from 10.sup.2 dyne/cm.sup.2 to 10.sup.9 dyne/cm.sup.2 at a temperature between 250.degree. C. and 300.degree. C.

Abstract: An elongated flexible metal clad laminate formed of at least one metal layer and at least one plastic layer and having a smaller interlayer dimensional difference and excellent process-ability. A defect that a dimension of the metal layer is longer than a corresponding dimension of the plastic layer when they are compared to each other as discrete layers has been corrected by causing the metal layer to continually undergo compression plastic deformation in the form of the laminate and hence compressing the metal layer. A production method for the laminate and an apparatus for the method.