Abstract: An object of the present invention is to provide a vehicle height control device for a motorcycle which enables a vehicle height to be retained at any intermediate position and which implements instantaneously switchover of the vehicle height. A vehicle height control device for a motorcycle has vehicle height detection means for detecting the vehicle height, a selector valve that connects, by switching, a jack chamber in a hydraulic jack to an oil reservoir chamber that communicates with oil chambers in a damper tube, and control means for controlling the switching of the selector valve based on a detection result from the vehicle height detection means in order to retain the vehicle height at any position.

Abstract: An object of the present invention is to control according to a vehicle height an auxiliary device provided in a vehicle. A motorcycle 1 having a damper 10A interposed between a vehicle body and an axle includes vehicle height detection means 80 for detecting a vehicle height, with this vehicle height detection means being provided in the damper 10A in an auxiliary manner. The optical axis of a headlight 210, which is an exemplar auxiliary device provided in the vehicle, is controlled based on a detection signal from the vehicle height detection means 80.

Abstract: Provided is technology of raising or lowering vehicle height even if the grasp of vehicle speed is disabled. A vehicle height adjusting device includes a rear suspension capable of changing relative positions of a vehicle body frame and a wheel of a motorcycle including a transmission configured by a plurality of gears and a control device configured to control the rear suspension and change the relative positions of the rear wheel and the vehicle body frame to adjust vehicle height, which is the height of the vehicle body frame. The control device controls the rear suspension to increase the vehicle height when a gear position of the transmission is equal to or higher than a predetermined gear position set in advance and reduce the vehicle height when the gear position is lower than the predetermined gear position.

Abstract: A vehicle height adjustment apparatus, includes: a front wheel side changing unit capable of changing a front wheel side relative position; a rear wheel side changing unit capable of changing a rear wheel side relative position; and a control unit for adjusting a height of the main body of the vehicle by controlling the front wheel side changing unit and the rear wheel side changing unit so as to change the front wheel side relative position and the rear wheel side relative position, in which the control unit controls the front wheel side changing unit and the rear wheel side changing unit in such a manner that a rate of change of the front wheel side relative position and a rate of change of the rear wheel side relative position satisfy a predetermined relationship.

Abstract: In a vehicle height adjusting device for a motorcycle, the vehicle height is adjusted on the basis of proper vehicle speed information when a failure occurs in a vehicle speed sensor. In the vehicle height adjusting device for a motorcycle, when a failure occurs in a vehicle speed sensor, a control section adjusts vehicle height by using vehicle speed information calculated from an engine speed signal, a shift position signal of a transmission, and an ON/OFF signal of a clutch.

Abstract: Provided is technology of raising or lowering vehicle height even if the grasp of vehicle speed is disabled. A vehicle height adjusting device includes a rear suspension capable of changing relative positions of a vehicle body frame and a wheel of a motorcycle including a transmission configured by a plurality of gears and a control device configured to control the rear suspension and change the relative positions of the rear wheel and the vehicle body frame to adjust vehicle height, which is the height of the vehicle body frame. The control device controls the rear suspension to increase the vehicle height when a gear position of the transmission is equal to or higher than a predetermined gear position set in advance and reduce the vehicle height when the gear position is lower than the predetermined gear position.

Abstract: An object of the present invention is to reduce current consumption for switching and holding an actuation position of an electromagnetic change-over valve included in a vehicle height adjusting device for a motorcycle and to surely hold the actuation position. In a rear-wheel side vehicle height adjusting device for a motorcycle, after applying a startup current to a solenoid of a change-over valve in order switch an actuation position of the change-over valve, while switching an applied current to the solenoid to a holding current which is smaller than the startup current and holding the actuation position of the change-over valve, a control section intermittently applies a large current, which is larger than the holding current, to the solenoid.

Abstract: Technology is provided that enables vehicle speed to be grasped more accurately utilized for adjusting vehicle height. A vehicle height adjusting device includes: a relative position changing device capable of changing relative positions of a vehicle body frame and a rear wheel of a vehicle; a vehicle speed grasping section configured to grasp vehicle speed, which is moving speed of the vehicle body frame; and a change-over valve control section configured to control the relative position changing device on the basis of the vehicle speed grasped by the vehicle speed grasping section and change the relative positions of the vehicle body frame and the rear wheel to adjust vehicle height, which is the height of the vehicle body frame. The vehicle speed grasping section grasps the vehicle speed on the basis of front wheel rotating speed, which is the rotating speed of a front wheel, and rear wheel rotating speed, which is the rotating speed of the rear wheel.

Abstract: An object of the present invention is to stabilize a rider's driving position in spite of a change in vehicle height. Provided is a motorcycle 1 that adjusts a vehicle height by interlocking a rear-wheel-side vehicle height adjusting operation based on controllable actuation of a hydraulic jack 41 provided in a rear suspension 10, with a front-wheel-side vehicle height adjusting operation based on controllable actuation of a hydraulic jack 141 provided in a front fork 110.

Abstract: An object of the present invention is to provide a vehicle height control device for a motorcycle which enables a vehicle height to be retained at any intermediate position and which implements instantaneously switchover of the vehicle height. A vehicle height control device for a motorcycle has vehicle height detection means for detecting the vehicle height, a selector valve that connects, by switching, a jack chamber in a hydraulic jack to an oil reservoir chamber that communicates with oil chambers in a damper tube, and control means for controlling the switching of the selector valve based on a detection result from the vehicle height detection means in order to retain the vehicle height at any position.

Abstract: An object of the present invention is to control according to a vehicle height an auxiliary device provided in a vehicle. A motorcycle 1 having a damper 10A interposed between a vehicle body and an axle includes vehicle height detection means 80 for detecting a vehicle height, with this vehicle height detection means being provided in the damper 10A in an auxiliary manner. The optical axis of a headlight 210, which is an exemplar auxiliary device provided in the vehicle, is controlled based on a detection signal from the vehicle height detection means 80.

Abstract: In a vehicle height adjusting device for a motorcycle, the vehicle height is adjusted on the basis of proper vehicle speed information when a failure occurs in a vehicle speed sensor. In the vehicle height adjusting device for a motorcycle, when a failure occurs in a vehicle speed sensor, a control section adjusts vehicle height by using vehicle speed information calculated from an engine speed signal, a shift position signal of a transmission, and an ON/OFF signal of a clutch.

Abstract: A semiconductor device includes: solder balls provided on an upper package; and pads provided on a lower package and directly connected to the solder balls, wherein at least one of the pads serves as a fiducial mark. Further, a shape of at least one of the pads is different from that of other pads and an area of at least one of the pads is substantially equal to that of the other pads.

Abstract: In a motor-driven power steering apparatus for converting rotation of an electric motor into a linear stroke of a rack shaft by an interposition of a power transmission mechanism and steering a tire wheel connected to the rack shaft, there is provided a motor slip detecting means for previously determining a cumulative rotational speed of the electric motor corresponding to a maximum stroke displacement amount of the rack shaft, integrating the rotational speed of the electric motor, and estimating that slip or idle running is generated in a rotational force transmission system from the electric motor to the rack shaft, where the integral rotational speed of the electric motor becomes more than a prescribed cumulative rotational speed.

Abstract: A semiconductor device includes: solder balls provided on an upper package; and pads provided on a lower package and directly connected to the solder balls, wherein at least one of the pads serves as a fiducial mark. Further, a shape of at least one of the pads is different from that of other pads and an area of at least one of the pads is substantially equal to that of the other pads.

Abstract: In a rack and pinion type motor-driven power steering apparatus, the motor-driven power steering apparatus is provided with a rack position detecting means for detecting a position of the rack, a rack speed arithmetically operating means for calculating a moving speed (s) of the rack, a memory means for storing a relation between a predetermined rack speed (s) near a stroke end of the rack and a motor damping control start rack position in which a distance from the stroke end is farther in accordance with the rack speed (s) as a relation curve (C) of a coordinate map A collating means is provided for collating with the relation curve (C) between the rack speed (s) stored in the memory means and the motor damping control start rack position so as to determine whether or not a point coordinate (s, p) of the combination between the rack speed (s) calculated by the rack speed arithmetically operating means and the rack position (p) detected by the rack position detecting means gets over the relation curve (C).

Abstract: In a direct current motor drive bridge circuit structured such that a pair of forward rotation switching elements and a pair of reverse rotation switching elements are alternately connected annularly, a direct-current motor is interposed between diagonal node points on one side, and a power source voltage is applied to a portion between diagonal node points on another side via an existing resistance. A fault detection apparatus of the direct-current motor drive bridge circuit is provided with a fault detection circuit for detecting an electric potential of the one node point r to which the power source voltage is applied via the existing resistance and for detecting a closed-circuit fault of the switching elements and on the basis of a fluctuation of the electric potential.

Abstract: In a motor-driven power steering apparatus for converting rotation of an electric motor into a linear stroke of a rack shaft by an interposition of a power transmission mechanism and steering a tire wheel connected to the rack shaft, there is provided a motor slip detecting means for previously determining a cumulative rotational speed of the electric motor corresponding to a maximum stroke displacement amount of the rack shaft, integrating the rotational speed of the electric motor, and estimating that slip or idle running is generated in a rotational force transmission system from the electric motor to the rack shaft, where the integral rotational speed of the electric motor becomes more than a prescribed cumulative rotational speed.

Abstract: In a rack and pinion type motor-driven power steering apparatus, the motor-driven power steering apparatus is provided with a rack position detecting means for detecting a position of the rack, a rack speed arithmetically operating means for calculating a moving speed (s) of the rack, a memory means for storing a relation between a predetermined rack speed (s) near a stroke end of the rack and a motor damping control start rack position in which a distance from the stroke end is farther in accordance with the rack speed (s) as a relation curve (C) of a coordinate map A collating means is provided for collating with the relation curve (C) between the rack speed (s) stored in the memory means and the motor damping control start rack position so as to determine whether or not a point coordinate (s, p) of the combination between the rack speed (s) calculated by the rack speed arithmetically operating means and the rack position (p) detected by the rack position detecting means gets over the relation curve (C).

Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows, is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are identical to the leads and the tub-suspension leads and flat.