摘要:
Even when erroneous encoded data is inputted to a decoding device, the decoding device is recovered during one video frame period including a video frame time of the inputted data to enable decoding processing on a next video frame. The decoding device includes: a receiving section (1) for receiving encoded data (11) to output the encoded data corresponding to a video frame, outputting encoded data of a next frame in response to a decoding completion signal (14) to be received, and for transmitting an error signal (15) when the decoding completion signal is not received during a predetermined time; an image decoder (2) for decoding the encoded data (12) from the receiving section (1), transmitting the decoding completion signal (14) to the receiving section (1) when decoding is completed, and for stopping decoding processing in response to a reset signal (16) to be received; and an error recovery section (3) for outputting the reset signal (16) to the image decoder (2) when the error signal (15) is received.
摘要:
Even when erroneous encoded data is inputted to a decoding device, the decoding device is recovered during one video frame period including a video frame time of the inputted data to enable decoding processing on a next video frame. The decoding device includes: a receiving section (1) for receiving encoded data (11) to output the encoded data corresponding to a video frame, outputting encoded data of a next frame in response to a decoding completion signal (14) to be received, and for transmitting an error signal (15) when the decoding completion signal is not received during a predetermined time; an image decoder (2) for decoding the encoded data (12) from the receiving section (1), transmitting the decoding completion signal (14) to the receiving section (1) when decoding is completed, and for stopping decoding processing in response to a reset signal (16) to be received; and an error recovery section (3) for outputting the reset signal (16) to the image decoder (2) when the error signal (15) is received.
摘要:
A process for producing a pulley for a belt drive CVT, including subjecting tapered surfaces of a preform of at least one of input and output pulleys to surface hardening, subjecting the surface-hardened tapered surfaces of the preform to hard turning to form microgrooves radially spaced from one another thereon, between which microprojections are formed, and reducing a height of the microprojections. Alternatively, a process for producing a pulley for a belt drive CVT, including subjecting tapered surfaces of a preform of at least one of input and output pulleys to surface hardening, subjecting the surface-hardened tapered surfaces of the preform to shot peening, and subjecting the shot-peened tapered surfaces of the preform to finishing to form microgrooves having a substantially equal pitch thereon.
摘要:
A control device for a belt continuously variable transmission with a primary pulley, a secondary pulley and a V-belt, includes an oil pressure control unit which applies a thrust to each of the primary pulley and the secondary pulley, and a controller. The controller judges whether or not a pulley ratio is less than 1. When the pulley ratio is less than 1, the controller sets a target thrust of the secondary pulley on the basis of an input torque to the primary pulley and a coefficient of static friction between an element forming the V-belt and the secondary pulley, and then to instruct the oil pressure control unit to apply the target thrust to the secondary pulley. When the pulley ratio is at least 1, the controller sets a target thrust of the primary pulley on the basis of the input torque to the primary pulley and a coefficient of dynamic friction between the element forming the V-belt and the primary pulley, and then to instruct the oil pressure control unit to apply the target thrust to the primary pulley.
摘要:
A system for controlling an idle-stop vehicle includes an ECU which carries out idle stop when the idle-stop permission conditions are established, and engine restart and engagement of a forward clutch when the idle-stop release conditions are established after engine stop. The ECU is so programmed as to estimate a heat generation amount of the forward clutch at engine restart after idle stop, permit next idle stop when the heat generation amount is smaller than a first set value, permit next idle stop, after a lapse of a predetermined time, when the heat generation amount is equal to or greater than the first set value and equal to or smaller than a second set value which is greater than the first set value, and prohibit next idle stop when the heat generation amount is greater than the second set value.
摘要:
An input clutch lubrication control apparatus for an automatic transmission, including an oil pump, a sleeve, an input shaft rotatably supported by the sleeve, an electromagnetic input clutch drivingly coupled with the input shaft upon being applied, first and second lubrication circuits fluidly communicating the electromagnetic input clutch with the oil pump, and a controller programmed to control the first and second lubrication circuits to regulate an amount of the lubricating oil fed to the electromagnetic input clutch. First lubrication circuit includes an annular space between the input shaft and the sleeve. Second lubrication circuit includes an axial bore of the input shaft.
摘要:
A pulse welding apparatus using a pulse discharge such as a pulse arc welding apparatus and a short-circuit transfer arc welding apparatus. A pulse current waveform control circuit, which controls the pulse arc current so that a desired pulse arc current is supplied to the arc welding power supply for outputting the pulse arc current to the welding load unit, is constructed such that the optimum welding operation may be performed without having to adjust circuit components and modify circuit design. The pulse current waveform control circuit is in the form of a microcomputerized digital circuit which operates under a program to provide a desired pulse arc current. A modification of the program can provide any desired pulse arc currents without changing circuits. The optimum welding current waveform parameters or a target arc length signal is learned in the first welding stage and stored into a memory. An arc length feedback control or a current waveform control is performed under the control of program on the basis of the optimum welding current waveform parameters or the target arc length signal so as to control the faulty separation of globules when magnetic blow occurs and so as to reduce the variation of arc length due to external disturbances occurring at the welding torch so that improved welding quality is ensured under various environment.
摘要:
A pulsed arc welding for carrying out arc welding or short-circuit transfer type arc welding by utilizing the pulsed discharge generated at the tip of a wire electrode. The propensity of wire electrode curvature causes irregular changes in the contact point of the wire electrode and variations in the arc length between the wire electrode tip and workpieces. Consequently, the invention detects arc voltage and current and checks the instantaneous variation in the arc length. The arc voltage value thus detected is converted to a reference arc voltage variable. Then the detected arc voltage value is compared with the reference value to compute a true arc length. A simulation arc length signal, which varies as welding proceeds, and a reference simulation welding current waveform are set, to compare the simulation arc length signal with the computed arc length signal. The reference simulation welding current waveform is corrected according to this difference signal to form and output a welding current waveform, which is controllable instantaneously to provide an ideal target arc length. Welding can be carried out with stability since the wire electrode is allowed to hold the simulation arc length during each welding process.
摘要:
An accumulator (40) is connected to a line pressure oil passage (33) via an electromagnetic cut-off valve (42) and a one-way valve (39), a three-way electromagnetic switching valve (44), and a pressure holding valve (46) are additionally installed on clutch pressure oil passage (34) of a low clutch (50) which is engaged at a time of an engine stop. The accumulator is cut off from the line pressure oil passage and the low clutch is communicated with the pressure holding valve and the clutch pressure is held to a value immediately before a torque transmission control, at the time of the engine stop and, during an engine restart, the electromagnetic cut-off valve is duty controlled in accordance with an accelerator opening angle and the clutch pressure is discharged from the accumulator.
摘要:
A hydraulic control apparatus includes a continuously-variable transmission; a line-pressure control section configured to produce a line pressure by adjusting a discharge pressure of an oil pump; a first hydraulic-pressure control section configured to adjust a first hydraulic pressure based on the line pressure, the first hydraulic pressure being supplied to the drive pulleys; and a second hydraulic-pressure control section configured to adjust a second hydraulic pressure based on the line pressure, the second hydraulic pressure being supplied to the driven pulleys. The continuously-variable transmission includes a pair of drive pulleys including a first movable pulley and a first fixed pulley; a pair of driven pulleys including a second movable pulley and a second fixed pulley; and a belt wound between the pair of drive pulleys and the pair of driven pulleys. The line-pressure control section is configured to adjust the line pressure to a value set by adding a margin pressure to higher one of the first hydraulic pressure and the second hydraulic-pressure, and configured to reduce the margin pressure when the first hydraulic pressure is higher than the second hydraulic pressure.