摘要:
A three-dimensional structure adapted to be assembled dissociably and placed on a substantially flat surface is disclosed. This structure includes a plurality of upright support members each integrally molded from concrete, the upright support members each including a base portion extending horizontally with a predetermined width, and being to be placed on the surface; and an upright portion extending upwardly from the base portion, and having opposite side surfaces defining a widthwise thickness and opposite end surfaces defining a horizontal length. These upright support members are spaced from each other in a horizontally transverse direction and a horizontally longitudinal direction. Transversely adjacent upright support members are connected together by beam means, while longitudinally adjacent upright support members are connected together by connecting means.
摘要:
In an apparatus and method for controlling damping forces of vehicular shock absorbers, at least one of pitch rate or roll rate of the vehicle is derived on the basis of output signals from at least three of wheel speed sensors located on front road wheels and located on either of rear right and left road wheels.
摘要:
A method of driving a stepping motor comprises dividing a drive signal for each drive step into a plurality of portions in the direction of a time axis, and controlling the drive signal in connection with the plurality of portions thereof in a way of PWM so as to obtain a pattern of a gradual change in a on-duty ratio of the drive signal.
摘要:
A support including a support pipe having a pair of elongated holes formed therein, a support ring, an insertion pipe having plural pairs of pin holes formed therein, and a support pin. The support ring includes a main support ring member having an internal thread formed in the inner peripheral portion thereof and an upper support ring member rotatably coupled to the upper end portion of the main support ring member via an upper thrust bearing. A rotary operation handle is fitted to the outer peripheral portion of the main support ring member.
摘要:
A system and method for controlling a damping characteristic of at least one shock absorber for an automotive vehicle in which, when direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between a sprung mass and an unsprung mass are the same, the variable control of the damping characteristic C is carried out at either of extension stroke side (V is plus and Sv is plus) or contraction stroke side (V is minus and Sv is minus) to provide C=.alpha..multidot.V/Sv, and when the direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between the sprung mass and the unsprung mass are mutually different, the variable control of the damping characteristic C is carried out at either of extension stroke side (V is plus and Sv is minus) or contraction stroke side (V is minus and Sv is plus) to provide C=.alpha..multidot.V.
摘要:
A vehicular suspension system comprises a hydraulic damper including a valve element having a plurality of positions and a pulse motor drivingly coupled with the valve element. A control unit is operatively coupled with the pulse motor. In order to avoid loss of synchronism of the pulse motor, the pulse motor is held stationary for a predetermined period of time after it has been determined that the pulse motor must reverse its direction of motion to reach a target position.
摘要:
A variable damping force shock absorber includes a cylinder defining therein first and second fluid chambers separated by a valve body. The valve body defines first and second fluid paths for fluid communication between the first and second fluid chambers. A harder damping characteristics valve is associated with the first fluid path. On the other hand, a softer damping characteristics valve is associated with the second fluid path. The valve body has a pair of coaxial arranged grooves. The inner groove is in communication with the first fluid path. Valve seats are formed along respective outer circumference of the inner and outer grooves. The second fluid path is provided with means for varying the fluid path area.
摘要:
In a power-cylinder equipped power steering device, under a first condition where a first directional control valve disposed in a first pressure line receives fluid pressure supplied into a second pressure line by a reversible pump, the first directional control valve intercommunicates a reservoir and a first-pressure-line downstream passage section, and blocks fluid communication of the first-pressure-line upstream and downstream passage sections. Under a second condition where a second directional control valve receives fluid pressure supplied into the first pressure line by the pump, the first directional control valve intercommunicates the first-pressure-line upstream and downstream passage sections. Under the second condition, the second directional control valve intercommunicates the reservoir and the second-pressure-line downstream passage section, and blocks fluid communication of the second-pressure-line upstream and downstream passage sections. Under the first condition, the second directional control valve intercommunicates the second-pressure-line upstream and downstream passage sections.
摘要:
The present invention is a semiconductor sensor package for incorporating a semiconductor sensor chip. The main surface for mounting the semiconductor sensor chip is formed at a predetermined angle with respect to the surface of a printed circuit board for mounting the package. The main surface is provided with a plurality of terminals along two opposite sides for connecting with the input/output terminals of the semiconductor sensor chip and a bottom surface perpendicular to the main surface with a plurality of pins respectively formed along two sides parallel to the main surface. The plurality of pins are inserted into mounting holes formed in the printed circuit board, and the plurality of terminals provided along parallel sides the pins are electrically connected.
摘要:
The present invention is an acceleration sensor chip comprising a support frame part and a sensor structure. The sensor structure includes a displaceable weight part with a magnetic thin film formed on the surface and at least one beam part for connecting the weight part to the frame part. The support frame part and sensor structure are formed on a silicon substrate through an insulating layer. The insulating layer between the sensor structure and the silicon substrate is removed and a coil is formed to surround the weight part on the support frame part at the periphery of the weight part. In some embodiments, the accelerator sensor chip comprises a plurality of such sensor structures.