47results about How to "Suppression of drastic changes" patented technology

The invention discloses a stator and rotor combined structure and belongs to the motor field. The stator and rotor combined structure includes a stator and a rotor; the stator includes a stator core; the stator core is provided with wire winding teeth opposite to the rotor; the wire winding teeth are uniformly distributed on the stator core; the wire winding teeth are wound with an armature winding; the rotor includes a rotor core and a plurality of magnets; a plurality of mounting grooves are uniformly distributed at intervals along the circumferential direction of the rotor core; one magnet is embedded in a corresponding mounting groove; the plurality of magnets include first magnets and second magnets, wherein the first magnets are adjacent to the second magnets; the axis of symmetry of the first magnet, which passes through the center of the rotor is a D axis; an axis of symmetry between the first magnet and the second magnet, which passes through the center of the rotor is a Q axis; the distance from points on the outer contour line of an end surface of the rotor to the side walls of the wire winding teeth is g; and in a sector scope from the Q axis to the D axis, g is decreased from the Q axis to the D axis.

When switching to a shift stage having a smaller transmission gear ratio during regeneration, both the suppression of shift shock generation and the improvement of energy efficiency are achieved. A control apparatus for a vehicle driving apparatus provided with an input member which is drive-connected to an engine and a rotational electrical machine; an output member; and a transmission device comprising a plurality of frictional engagement elements so that a plurality of shift stages are switched by controlling engagement and disengagement of the plurality of frictional engagement elements, and a rotational driving force of the input member is changed by a transmission ratio of each shift stage and output to the output member, wherein when the transmission device switches to a shift stage having a smaller transmission gear ratio, under the conditions that the rotational electrical machine is regenerated, a disengagement side hydraulic pressure which is a hydraulic pressure of operating oil with respect to a disengagement side element representing the frictional engagement element at the disengagement side is controlled, and the disengagement side element is maintained in a slipping condition during the entirety of the shift transmission process.

A display control device capable of suppressing an abrupt change in brightness of a display device viewed by a user when a large change takes place in outside light illuminance, thereby relieving a viewing difficulty. A control unit detects illuminance of outside light irradiated onto the display device, calculates a target brightness value corresponding to the detected illuminance, and sets a brightness setting value for the display device based on the target brightness value. If there is continuity in display content of the display device, the brightness setting value is set while providingan upper limit value for an amount of change in target brightness value. If the display content is changed without continuity, the target brightness value is set as the brightness setting value whileunrestricting the amount of change in the target brightness value.

An image processing apparatus including: an encoding section encoding image data including images from a plurality of viewpoints; an amount-of-code calculation section determining a viewpoint and a picture type of the image data encoded by the encoding section, and calculating an average amount of code using information on a past amount of code for each viewpoint and for each picture type; and an average-rate calculation section calculating an average bit rate using the average amount of code calculated by the amount-of-code calculation section for each viewpoint and for each picture type.

A liquid chamber for a liquid ejecting apparatus includes a prism disposed on a bottom portion of the liquid chamber. The prism includes a first reflection surface having a first reflection region by which light incident on the prism from a light emitting element is reflected when liquid does not make contact with the first reflecting region. The prism includes a relief that includes a first relief surface opposed to the first reflection region. The thickness of the prism between the first reflection region and the first relief surface is substantially constant. The constant thickness of the prism between the first reflection region and the first relief surface suppresses deflection of the first reflection region, thereby improving sensitivity for the detection of liquid in the liquid chamber.

The invention provides a display device and a display control method capable of improving the display quality of images. The display device includes: an LED backlight (3) that divides the screen into a plurality of divided areas and illuminates each divided area; a movement amount detection unit (7) that detects the movement amount of each divided area of ​​an input image; An area luminance determination unit (6) for the reference luminance value of the divided area; an area luminance time change control unit (8) for determining the luminance control time of each image area required to reach the reference luminance value according to the amount of movement An LED backlight drive circuit (4) that drives the LED backlight (3) based on the luminance control time of each image area determined by the area luminance time change control unit (8).

The present invention relates to a liquid ejecting apparatus capable of preventing cross talk even when a liquid is ejected simultaneously from a plurality of nozzles adjacent to each other in the same nozzle group and to a method of controlling the liquid ejecting apparatus. The ejection driving pulse DP is a voltage waveform including a preliminary expansion section p1, an expansion hold section p2, a contraction section p3. The contraction section p3 includes a first contraction component p3a in which the potential is varied in the minus direction from the expansion potential VH, an intermediate hold component p3b in which an intermediate potential VM1, which is the termination potential of the first contraction component p3a, holds for a given time, and a second contraction component p3c in which the potential is varied in the minus direction from the intermediate potential. The hold time of the intermediate hold component is greater than 0 and 0.12 Tc or less. The potential of the intermediate hold component is in the range from 50% to 60% of the potential of the hold section.

The invention provides an electric power steering system. The electric power steering system includes: an electric motor (21) that generates assist torque based on steering torque; an auxiliary power supply (40) connected in series with a main power supply (4) that supplies electric power to the electric motor (21), and capable of discharging electric power to the electric motor (21); and a control device (30) that controls a voltage to be applied to the electric motor (21). When the auxiliary power supply (40) starts discharging electric power to the electric motor (21), the control device (30) gradually increases a duty ratio of a switching element (44A), which is a command signal for commanding the auxiliary power supply (40) to discharge electric power.

A steering torque shift control amount calculation unit (31) calculates the steering torque shift control amount (εts) by multiplying the basic shift amount (εts_b) used as the basic compensation component by the transition coefficient (Kss). Then, the steering torque shift control amount (εts) is subjected to the low-pass filter process in an abrupt change prevention processing unit (32). An abrupt change prevention processing unit (40) is provided in the steering torque shift control amount calculation unit (31). The transition coefficient (Kss) is subjected to the low-pass filter process in the abrupt change prevention processing unit (40). The cutoff frequency of the low-pass filter that forms the abrupt change prevention processing unit (40) is set to a value lower than the cutoff frequency of the low-pass filter that forms the abrupt change prevention processing unit (32) that executes the low-pass filter process on the torque shift control amount (εts).

Disclosed is an electronically controlled throttle system. In the electronically controlled throttle system (S), a throttle valve openness sensor selection unit (8) calculates a first variation between target throttle valve openness and the actual throttle valve openness detected by a first throttle valve openness sensor (26a); then calculates a second variation between the target throttle valve openness and the actual throttle valve openness detected by a second throttle valve openness sensor (26b); when at least one of the first variation and the second variation is above a first determined value (a), according to the greatness of the absolute values of the first variation and the second variation, selects the output of one of the throttle valve openness sensors (26a, 26b).

Disclosed is an electronically controlled throttle system. In the electronically controlled throttle system (S), a throttle valve openness sensor selection unit (8) calculates a first variation between target throttle valve openness and the actual throttle valve openness detected by a first throttle valve openness sensor (26a); then calculates a second variation between the target throttle valve openness and the actual throttle valve openness detected by a second throttle valve openness sensor (26b); when at least one of the first variation and the second variation is above a first determined value (a), according to the greatness of the absolute values of the first variation and the second variation, selects the output of one of the throttle valve openness sensors (26a, 26b).

The present invention provides a control device for an uninterruptible power supply apparatus. When the current failure state of an AC power supply (1) is releases, an information that the AC power supply (1) is in a normal state is notarized, a synchronization control is performed for making the uninterruptible power supply apparatus (20) to generate an output voltage synchronous with the voltage of the AC power supply (1), in a state that the difference of the frequency of the AC power supply (1) be about to start and the output frequency of the uninterruptible power supply apparatus (20) is big, a synchronization control through a path of a phase difference / frequency detection circuit (21), a setting device (23), an adder(24), a limiting circuit (25), a setting device (26), a multiplier (27), an adder (28), a contact point (22b), an LPF (29), an adder (30), a V / F converter (16), and an inverter driving circuit (17). In the synchronization control of the path, the output voltage of an inverter circuit (12) and the voltage of the AC power supply (1) can be synchronized quickly without any impacts.

An electrolyte for a lithium secondary battery and a lithium secondary battery including the same, and more specifically, an electrolyte for a lithium secondary battery that can uniformly maintain a lithium ion concentration on the surface of a lithium metal negative electrode to inhibit the growth of lithium dendrites, even if a small amount of an additive comprising a functional group forming a bond with lithium metal and a polyethylene oxide chain interacting with lithium ion is contained.

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.

The invention discloses a combined structure of a stator and a rotor, which belongs to the field of electric motors. The combined structure of the stator and the rotor includes a stator and a rotor, the stator includes a stator core, the stator core is provided with winding teeth opposite to the rotor, and the winding teeth are evenly distributed on the stator core, and the winding teeth are arranged on the stator core. The armature winding is wound; the rotor includes a rotor core and a plurality of magnetic steels, and a plurality of installation slots are evenly spaced in the circumferential direction of the rotor iron core, and a magnetic steel is embedded in each installation slot, and a plurality of magnets The steel includes a first magnetic steel and a second magnetic steel adjacently arranged, the symmetry axis of the first magnetic steel passing through the center of the rotor is the D axis, and the axis between the first magnetic steel and the second magnetic steel passing through the center of the rotor The axis of symmetry is the Q axis, the distance between the point on the outer contour line of the rotor end surface and the side wall of the adjacent winding tooth is g, and within the fan-shaped range from the Q axis to the D axis, g is along the direction from the Q axis to the D axis get smaller.

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).

In a CRT display device equipped with a CRT (MM tube) that is brighter than conventional CRTs, image noise in low-brightness areas is made inconspicuous while improving contrast. The image signal modulation circuit 10 converts the image signal 9 (first image signal) into a second image signal in which the signal level of a low-tone area is suppressed lower than that of the first image signal. As a result, since the cathode bias voltage source 7 generates the drive voltage based on the second image signal, the drive voltage in the low-tone area is kept low, and the brightness of the low-tone area in the CRT 1 becomes low. Therefore, the image noise in the low-brightness part is made inconspicuous, and the contrast value is increased to improve the display quality.