摘要:
A belt-type continuously variable transmission has a pulley side pressure control valve for controlling side pressures of driving and driven pulleys and a controller for controlling the pulley side pressure control valve. The controller has a correcting device for correcting a belt transmission torque calculated by a belt transmission torque calculator when the polarity of the belt transmission torque changes. The correcting device adds to the belt transmission torque for a predetermined time a correction value corresponding to a peak torque of the belt transmission torque arising at times of throttle opening and closing. That is, because the belt transmission torque is corrected in correspondence with the peak torque arising at times of throttle opening and closing, the side pressures of the pulleys are kept at suitable values at all times and slippage of the metal V-belt is prevented.
摘要:
A pulley thrust pressure control apparatus for a belt-type continuously variable transmission having a drive pulley connected with an input member, a driven pulley connected with an output member, a V-belt trained around the drive and driven pulleys, a drive cylinder for varying the pulley width of the drive pulley, and a driven cylinder for varying the pulley width of the driven pulley. The actual transmitting torque transmitted through the V-belt is calculated and a belt transmittable torque is calculated by multiplying the actual transmitting torque by a safety factor which is higher when said actual transmitting torque is negative than when it is positive. A pulley thrust pressure control valve controls the pressures supplied to the drive and driven cylinders so as to obtain the calculated belt transmitting torque.
摘要:
A fluid control device includes two opening and closing valves 2, 3 disposed symmetrical to each other and having an identical shape, two fluid discharge passages 6, 7, 11, 12 having an equal length and provided in parallel with each other in outlets of the opening and closing valves 2, 3, and a connection member 10 attachable to a chamber and having two fluid passages 25, 26 formed in an equal length to and communicating with the two fluid discharge passages 6, 7, 11, 12, the connection member being provided in outlets of the two fluid discharge passages 6, 7, 11, 12.
摘要:
To provide a fluid control apparatus capable of reducing the space, while reducing the cost.A fluid control apparatus 1 has a fluid controlling unit 2 and a fluid introducing unit 3. The fluid introducing unit 3 is divided into three parts: a first and a second inlet-side shutoff/open parts 5, 6 disposed on the inlet side, each made up of 2×N/2 on-off valves 23, and a fluid controlling unit-side shutoff/open part 7 made up of 4×M on-off valves 23, disposed between the first and second inlet-side shutoff/open parts 5, 6 and the fluid controlling unit 2.
摘要:
According to the present invention, there are provided a file search method and a system therefor with which it is possible to display files including a keyword specified by a user in an importance descending order by monitoring a file operation by the user, creating reference relation between files, and arranging search results on the basis of the importance calculated from the reference relation.
摘要:
In a conventional method for preventing a collision between a lens and an optical disc which uses a control system similar to the servo control of the optical disc, it is feared that, when there is no need to apply the servo, the collision prevention method may not perform its function satisfactorily. In an optical disc device that operates with a part of its functions suspended for reduced power consumption, the conventional method is not enough to avoid the collision between the lens and the optical disc. By arranging the lens/disc collision prevention mechanism independently operable, it is possible to prevent the collision between the lens and the disc even during the operation with limited functions.
摘要:
In relation to a system which effects one-to-many authentication using biometric information; e.g., a fingerprint, an iris, voice, a facial image, a vascular pattern, a dynamic signature, or a keystroke, in order to significantly shorten the time required to verify registered feature information against input feature information, there is performed extraction of verification-purpose feature information and a plurality of types of verification-purpose attribute information from the biometric information about an object of authentication; computation of verification priority levels of a plurality of registration-purpose feature information items on the basis of registration-purpose attribute information and the verification-purpose attribute information, both being associated with the registration-purpose feature information items; and sequential verification of the verification-purpose feature information against registration-purpose feature information in accordance with a computed verification priority level, thereby specifying registration-purpose feature information matching said verification-purpose feature information from said plurality of registration-purpose feature information items.
摘要:
The present invention provides a polishing head 1 comprising a carrier 3, a guide ring 4, a dress ring 5, and a head body 2, wherein the head body 2 is rotatable, and holds the carrier 3, the guide ring 4, and the dress ring 5; the head body 2 has a reversed-bowl shape and has a hollow 8; the dress ring, and at least the guide ring or the carrier are held by being coupled to a lower brim of the head body via a diaphragm 6; the hollow of the head body is sealed. During polishing, the pressure of the sealed hollow is adjusted with a pressure regulating mechanism 9 communicating with the hollow, thereby elastically deforming the diaphragm. As a result, a wafer W can be polished while the wafer and the dress ring are pressed with a given pressing force against a polishing pad 11 on a turn table 12 with rotating the wafer held by the carrier and the dress ring. Consequently, there is provided a polishing head or the like with which excessive polishing in the outer periphery of a semiconductor wafer can be prevented and generation of impressions or scratches in the edge portion of the wafer can be prevented effectively.
摘要:
There is provided a failure determination system for a continuously variable transmission of a belt type, which is capable of determining failure of control valves for performing speed varying operation, and enhancing maintainability. An ECU controls a transmission ratio of the transmission to a fixation-determining LOW-side range when the vehicle is standing. When the transmission ratio during stoppage of the vehicle is within a stop-time OD-side range if engine torque≧OD-time DR-side reference torque and at the same time the transmission ratio
摘要:
According to the present invention, there are provided a file search method and a system therefor with which it is possible to display files including a keyword specified by a user in an importance descending order by monitoring a file operation by the user, creating reference relation between files, and arranging search results on the basis of the importance calculated from the reference relation.