45results about How to "Suppression of drastic changes" patented technology

Both the control of transmission shock due to transmission operation and improved energy efficiency will be achieved in cases when shifting to a low gear ratio gear in a state when the accelerator opening angle of a vehicle is at or below a specified value. Disclosed is a transmission device control device, which is equipped with an input member, which drive-couples to an engine and a dynamo-electric machine, an output member, and a transmission mechanism, which switches between multiple gears by controlling the engagement and disengagement of a plurality of frictional engagement elements, converts the rotational velocity of the input member by the gear ratio of the various gears and outputs the velocity to the output member. When shifting to a low gear ratio gear in a low accelerator opening state, the disengagement side hydraulic pressure, which is the hydraulic pressure of the hydraulic fluid for the disengagement side element on the side that is disengaged, is reduced to allow the disengagement side element to slip, and this slip condition is maintained throughout the transmission process from the time that said disengagement side element begins to slip until the time that the rotational velocity obtained by multiplying the rotational velocity of the output member by the gear ratio after shifting gears synchronizes with the rotational velocity of the input member.

Provided is a freezing apparatus comprising an overheat control unit (44) constituted to adjust the opening of an indoor expansion valve (26) on the basis of a control gain for deciding the opening operation stroke of the indoor expansion valve (26). The overheat control unit (44) includes a control gain deciding unit (41) for setting the control gain (g) higher than the current level, when a target overheat deciding unit (39) makes a target overheat (SHs) higher than the current level, and lower than the current level, when the target overheat (SHs) is made lower than the current level.

A hydraulic drive apparatus of a work machine capable of securely providing a fuel cost reduction effect also in an actual work in which working conditions vary every hour. The apparatus comprises a working condition discriminating part (41) discriminating working conditions and a hydraulic pump controller (40b) controlling the absorption torque of a hydraulic pump (18). When the working conditions discriminated by the working condition discriminating part (41) are specific ones, the hydraulic pump controller (40b) controls the absorption torque of the hydraulic pump (18) so that the absorption torque characteristic line of the hydraulic pump (18) matches the absorption torque characteristic line (PLb) of the hydraulic pump which makes equal the output torque of an engine (17) to the absorption torque of the hydraulic pump (18) at an engine output torque point (Mb) where a fuel consumption is approximately minimized.

An oscillator circuit includes a current source for generating a current depending on the ambient temperature, a plurality of oscillators for oscillating at respective periods depending on the current from the current source and based on different relations between the ambient temperature and the periods, and a frequency demultiplication unit for receiving an output signal from one of the oscillators selected by a period selecting circuit 103. The frequency dividing ratio of the frequency demultiplication circuit is set so that a higher ambient temperature provides a smaller frequency dividing ratio.

The invention relates to a nano titanium dioxide modification method of an electric adsorption desalinization carbon electrode, belonging to the field of manufacturing of main electrode components of an electric adsorption water purifier. The method comprises the following steps: pretreating a formed electrode, immersing in a nano titanium dioxide sol for some time, taking out, drying at a certain temperature, and carrying out heat treatment to form a titanium dioxide film layer on the wall surface of the interior pore canal of the electrode, thereby obtaining the modified electrode. The modified electrode can not easily generate acid or alkali in the electric adsorption desalinization process, has the advantages of high electric adsorption rate and higher specific surface utilization efficiency, and enhances the electric adsorption capacity of the carbon electrode, so that the desalinization property of the electrode is sufficiently displayed.

The invention discloses a coater and a coating method dealing with the problem that when the glass sheet in 2 m is used in manufacturing the liquid crystal panel. In such situation, the device gets enlargement when coating the paste (bonding agent) on the substrate surface. When the manufacture time is reduced and the coating speed is increased, the vibration is generated in the corner which can reduce the coating precision. The invention adopts a speed control when coating the corner, which means switching the relative speed change of the substrate and the nozzle in two-stage. Simultaneously, in order to keep the coating amount constant, two pressure regulators and high-speed changeover valves are arranged in the coater, and a pneumatic loop is also arranged in the coater, which can conveniently change over the pneumatic loop in two stages controlling coating amount at high speed.

To achieve smooth switching of control without fluctuations in speed and torque, an excitation current command is allowed to transit linearly or in accordance with the function of speed between a value under sensorless vector control and a value under low-speed region control in accordance with a speed command or estimated speed in a speed region where the control is switched or in an adjacent speed region where sensorless vector control is performed. Therefore, abrupt variations in excitation current are reduced before and after the switching of the control.

An easy-to-carry medicinal liquid infusion apparatus (1) capable of suppressing sudden change in flow rate even if an environmental temperature increases. The apparatus comprises a drive part (2) and is formed to infuse a medicinal liquid in a medicinal liquid container (3) into a patient by pressurizing the medicinal liquid container (3) by the drive force of the drive part. The drive part (2) comprises a gas cylinder (4) in which a compressed gas is sealed, and is formed to generate the drive force by a pressure in the gas cylinder (4).

The vehicle controller performs gear position switch control in which a gear position of an automatic transmission set based on the automated drive control is changed to an upper-level gear position if the driver operates the accelerator pedal under the automated drive control.

The invention provides a motor control device; in a structure for controlling a permanent magnet motor by a method without a position sensor and electrifying to change the flux of the permanent magnet, the motor is not controlled by means of stepping out. A motor control device (50) infers the rotation position (theta) of a rotor (3) according to a voltage equation founded to a permanent magnet motor (1) through a speed position inferring part (55), and d-axis current and q-axis current are calculated according to the inferred rotation position (theta), thereby performing a vector control to the permanent magnet motor (1). Moreover, during a period that a magnetization control part (61) electrifies the winding (5) of the motor (1) via a conversion circuit (52) to magnetize an aluminum-nickel-cobalt magnet (9b), a position inferring correction part (62) temporarily replaces the calculated result obtained by the voltage equation to a fixed value, thereby correcting the inferred rotationposition (theta).

Pneumatic tire (3) with excellent high-speed durability and wear resistance, wherein the profile (35) of the tread surface ranging from equatorial plane (CL) to tread edge (28) is formed of multiple arcs protruding in a radially outward direction, wherein when the i-th arc counted from the equatorial plane (CL) in an axially outward direction is set as arc (Ci), and when the radius of arc (Ci) is set as (Ri), then arc C(i+1) and arc (Ci) make contact at the point where they intersect; the radius (Ri+1) is not greater than radius (Ri); the amount of curvature of the tread profile is defined by a tangent to the tread profile and inclined at an given angle theta relative to the axial direction, wherein the point where the virtual line (Lt) makes contact with profile (35) of the tread surface is set as (Pt), and when the axial width from the equatorial plane (CL) to contact point (Pt) is set as (Wt), then the width (Wt) at an inclination angle theta of 3 degrees and the width (W) ranging from the equatorial plane (CL) to tread edge (28) are set to have a ratio Wt/W of less than 65%.