550results about How to "Improve driving effect" patented technology

Brushless DC motor (4) is driven based on a first or second waveform signal output from operation switching unit (11), which switches output so that a first waveform signal by first waveform generation unit (6) is output when the speed of rotor (4a) is determined to be lower than a predetermined speed, and a second waveform signal by second waveform generation unit (10) is output when the speed of rotor (4a) is determined to be higher than the predetermined speed. Thus, there is provided a motor driving device in which drive is stable even at high speed / under high load, and a driving range is extended.

A single folding mode is mostly adopted for the traditional folding wing, and has the limitation on the effect of reducing the ground occupied spaces of an aircraft (especially a high-span-cord-ratio airplane). The invention relates to the design of a novel folding wing capable of reducing the horizontal occupied spaces in ground driving and storage of the aircraft effectively. A three-section dual-folding wing provided by the invention is separated into three sections including an inner wing, a middle wing and an outer wing; and the wing surface is folded twice through a linkage rod folding mechanism. Auxiliary torque is provided for the inner wing hinge part by utilizing a torsional spring, and the driving performance of a folding system is improved; the wing folding / unfolding motion is continuous and stable; and the wing surface can rotate at uniform speed, and the control principle is simple.

The invention relates to a fabric made of cored piezoelectric fibers by weaving or knitting. A plurality of cored piezoelectric fibers are parallelly woven or knitted along a same straight line or curved line direction, crosswise woven or knitted along different straight line or curved line directions, or woven or knitted to form knots extending in the straight line or curved line direction to form an area with the cored piezoelectric fibers, and the area with the cored piezoelectric fibers is woven or knitted with an area formed by weaving or knitting other textile fibers to form one or more layers of the fabric. Thus, the area with the cored piezoelectric fibers in the fabric can serve as a sensor or drive. Due to flexibility and foldability, the cored piezoelectric fiber fabric can be made into wearable structures such as gloves, vests, wrist bands, ankle pads, socks and the like which can be put on a living body or a robot body to serve as sensors for sensing health conditions in the living body, movements of the living body or the robot body or external acting forces; the wearable structures can also serve as drives for adding external signals onto the fabric, the living body can sense the external signals by sensing deformation, vibration and the like of the fabric; the wearable structures can further serve as sonic sensors or sonic drives to sense external sound waves or transmit sound waves.

A drive mechanism and an imaging device according to the present invention each include: an ultrasonic linear actuator 4 provided with a rod 42 that moves reciprocally in response to expansion / contraction of a piezoelectric element 41 and a first group unit 2 serving as an example of a moving body that engages with the rod 42 with a prescribed frictional force. The moving body (first group unit 2) is provided with a holding member 24, a pressing member 30 or other member that engages with the rod 42 in such a way that fluctuation in the frictional force is suppressed, and drive performance is stabilized. As a consequence, the drive mechanism and the imaging device according to the present invention can suppress fluctuation in the frictional force (gripping force) of the moving body in the ultrasonic linear actuator 4, making it possible to stabilize drive performance.

The invention belongs to the technical field of kitchen appliances, and particularly relates to an integrated cooker. The integrated cooker comprises a machine body and a range hood body; the range hood body comprises an air inlet, an air collecting box and a fan assembly; the air collecting box communicates with the air inlet; the fan assembly is arranged in the air collecting box; a volute air duct of the fan assembly extends downwards to the wall face of the bottom of the air collecting box and extends out of the bottom of the air collecting box to be rotationally provided with an air outlet base; and an air outlet is formed in one side of the air outlet base. According to the integrated cooker, the volute air duct extends downwards to the wall face of the bottom of the air collecting box and extends out of the bottom of the air collecting box to be rotationally provided with the air outlet base; the air outlet base is directly located on the outer side of the air collecting box, and the situation that a channel is located inside and occupies too much space is avoided; a through hole does not need to be additionally formed in the side edge of the machine body, and leakproofnessof the side face of the machine body is guaranteed; and meanwhile, the air outlet base is rotatably arranged, so that a user can conveniently adjust the air outlet direction according to actual needs,and humanization is achieved.

The invention discloses a radio frequency signal source with the amplitude modulation and automatic level control functions. The radio frequency signal source is characterized in that a modulation signal generating unit generates amplitude modulation signals, a variable attenuation unit is driven by drive signals to generate attenuation signals for input signal attenuation, a power distribution unit divides the attenuation signals into two paths, one path of the attenuation signals are directly output, the other path of the attenuation signals are output to a detector, the detector detects the input signals, detected signals are acquired, data processing units generate the drive signals according to the amplitude modulation signals and the detected signals, the variable attenuation unit comprises a first variable attenuator and a second variable attenuator which are connected in series, the first data processing unit generates the first drive signals for driving the first variable attenuator according to the detected signals, and the second data processing unit generates the second drive signals of the second variable attenuator according to the amplitude modulation signals. Amplitude modulation and automatic level control are separately set, the requirements of amplitude modulation and automatic level control do not need to be taken into consideration by all elements, and a circuit is easy to achieve.

The invention discloses an electronic parking braking method. The method comprises the following steps of: first, parking braking, namely transferring prestored air pressure in an air reservoir to brake chambers of each wheel by controlling an active air supply electromagnetic valve to realize the parking braking; and second, releasing braking, namely when a road section is a straight road surface, simultaneously releasing a drive wheel and a driven wheel of a controlled vehicle once; and when the road section is a downhill road section or an uphill road section, adopting a corresponding control strategy according to the rotating situations of each wheel of the vehicle, and releasing the air pressure in the brake chambers of each wheel of the controlled vehicle separately by utilizing a pressure maintaining effect of an antilock brake system (ABS) electromagnetic regulating valve. The electronic parking braking method has a reasonable design, low investment cost, high intelligence degree and good use effect, is convenient to operate, and solves the practical problems of high technical requirements on drivers, brake force transfer gap of mechanical system, great difficulties in starting operation on low-adhesion coefficient road surface and ramp, poor use effect and the like in a conventional mechanical parking braking system.

A process for extracting copper from copper oxide ore includes such steps as immersing in ammonia water in ordinary temp and ordinary pressure condition, extracting electrodeposition, and floatation. Its advantages are low consumption of energy and low cost. It is especially suitable for the low-grade copper oxide ore with high content of Ca and Mg.

The invention discloses a preparation method for a bulk silicon nanometer line transistor apparatus, which belongs to the technical field of manufacturing CMOS GSI (ULSI). The method realizes a bulk silicon nanometer line structure by an approach from up to down; a large amount of heat generated by the apparatus can be radiated from an underlay area by a source drain area, thus effectively restraining the self-heating effect of the apparatus. Besides, as the source drain of the bulk silicon nanometer line transistor apparatus is connected with the underlay, and a large fan-out deep source drain junction can be realized, thus effectively reducing a parasitic resistance and being capable of completely showing the advantages of the characteristics of a silicon nanometer line structure; the technique has high controllability and is compatible with the traditional technique technology. Compared with an SOI (Silicon on Insulator) silicon chip, the technique manufacture cost can be effectively reduced.

Brushless DC motor (4) is driven based on a first or second waveform signal output from switching determination unit (11), which switches outputting so that a first waveform signal by first waveform generation unit (6) is output when the speed of rotor (4a) is determined to be lower than a predetermined speed, and a second waveform signal by second waveform generation unit (10) is output when the speed of rotor (4a) is determined to be higher than the predetermined speed. Thereby, drive is stable even at high speed / under high load, and a driving range is extended.

A storage unit provided in an engine control device stores three kinds of mode maps having different engine output characteristics. One of the mode maps is selected in accordance with the driving conditions, and a target torque is set by referring to the selected mode map using an engine speed and an accelerator opening-degree as parameters. A throttle opening-degree signal corresponding to the target torque is output to a throttle actuator, and an operation of opening or closing the throttle valve is performed in response to the throttle opening-degree signal.

The invention relates to a power output device and a hybrid vehicle with the same configured with a power distribution integrating mechanism (40) and a gear box (60). The power distribution integrating mechanism (40) is a double-stage pinion planetary gear mechanism, comprising a planet carrier (45) connected to a motor (MG2), a sun gear (41) connected to a motor (MG1) and a ring gear (42) connected to a motor (22), having a speed ratio about 0.5. The gear box (60) comprises a triple element first gearing planetary gear mechanism (PG1), a triple element second gearing planetary gear mechanism (PG2), a break coupling (BC1) designed to fix a ring gear (62) of the first gearing planetary gear mechanism (PG1) in a non-rotating manner and releasing the same in a rotating manner, and a brake coupling (BC2) designed to permit or forbid power transmission performed by the second gearing planetary gear mechanism (PG2).

A pneumatic tire provided with a tread pattern on which a plurality of blocks are formed with circumferential grooves which extend along a circumferential direction of the tire and lateral grooves which traverse the circumferential grooves, wherein the lateral groove disposed between the blocks on the endmost tread edge region has a depth from 10 to 50% of a depth of the circumferential groove to be traversed and has a groove bottom concave portion whose both ends in a longitudinal direction are disposed inside the groove bottom, and a width of the groove bottom concave portion, which is determined on the basis of the bottom plane of the groove bottom, is from 25 to 45% of a groove width of the lateral groove.

The invention provides a mechanism for preventing electromagnetic interference of micro-lens, comprising a frame, around which four magnetism modules are arranged; a bearing seat which is used for bearing a micro-lens and externally covered with a coil pack; at least one elastic component, an external fixed part and an internal movable part of which mutually connects four groups of strings with ninety degrees, the external fixed part is connected with the frame, and the internal movable part is connected with the bearing seat, thus forming an elastic movable supporting bearing seat which is suspended at the center of the frame; an upper cover and a lower cover which are respectively arranged above and below the frame and fixedly connects the elastic component on the frame; a metal outer cover which covers the external parts of the upper cover, the elastic component, the bearing seat, the frame and the lower cover, and the bottom of the metal outer cover is provided with at least one conductive contact pin which is electrically connected to the ground, electromagnetic effect generated to the outside is insulated by the grounding mode, and the external electromagnetic interference and the electrostatic protection are also insulated.

The invention provides a shifting register and a thin film transistor liquid crystal display. The shifting register comprises multiple cascaded shifting registering circuits, and each circuit is composed of nine transistors and one capacitor, wherein each shifting registering circuit comprises a pulling-up transistor, a first pulling-down transistor and a second pulling-down transistor of a signal output module, a third pulling-down transistor, a switching transistor, a first capacitor, a resetting transistor, a first auxiliary pulling-down transistor and a second auxiliary pulling-down transistor of an auxiliary pulling-down module, a third auxiliary pulling-down transistor and a second capacitor; and the third auxiliary pulling-down transistor and the second capacitor are connected in parallel. The second capacitor is used as a buffering device and can filter surplus burr signals in output signals to reduce signal crosstalk; and meanwhile, the first pulling-down transistor and the second pulling-down transistor can respectively work in a half pulling-down period so that the drifting of threshold voltage, caused by too big width-length ratio of the transistor is inhibited and the stability of a circuit is further guaranteed. The auxiliary pulling-down module is arranged so that an output waveform of a second node is more stable.

The invention discloses a manipulator capable of rotatably lifting. The manipulator capable of rotatably lifting comprises a base, wherein a gyrating waist plate and a vertical arm are sequentially arranged on the base; the vertical arm is vertically mounted, and a suspension arm which is horizontally mounted is arranged on the vertical arm; a hoisting arm is connected to the rear end of the suspension arm; the bottom end of the suspension arm is connected with a wrist part through a plurality of gear sets; a fourth driver, and a gripper mechanism connected with the fourth driver are arranged on the wrist part. The manipulator capable of rotatably lifting is simple in structure, and easy to manufacture, and can perform multi-dimensional movement; the traditional manual operation is changed; the manipulator has the advantages of being high in production efficiency, low in equipment cost and repair cost, wide in applicable scope, reliable in transmission, high in driving performance, high in sensitivity, wide in movement range, reliable in transmission, and stable to clamp; the manipulator is high in overall performances and worthy of wide popularization.

This fuel cell vehicle FCV is provided with a fuel cell FC as well as a first tank and a second tank, which store a reaction gas to be supplied to the fuel cell FC. The first tank and the second tank are arranged in the front area of the fuel cell vehicle FCV. The second tank is arranged nearer to a rear area than the first tank and arrangement is performed so that the positions of the tanks are out of alignment in a vertical direction. This configuration enables compatibility to be ensured between an increase in the tank capacity of the fuel cell vehicle and an increase in the space in a passenger room and a trunk, and is capable of absorbing the impact of a collision even if the collision occurs.

The invention discloses a passive type MEMS flow-induced vibration strengthened heat transfer apparatus and heat transfer method. Through reasonable structural design, a cantilever beam structure fixed on a heat sink can generate a deflection movement far from the heat sink when the temperature of the heat sink increases, and the deflection angle is enlarged along with the increasing of the heat sink temperature. When the deflection angle of the cantilever beam structure is enlarged, an included angle between the length direction and an inflow velocity direction is correspondingly enlarged, so that the vibration of the cantilever beam vibration part is more fierce; therefore, higher disturbance is brought to a flow field close to the cantilever beam, formation of a heat boundary layer is damaged, and strengthened heat transfer is realized finally; the strengthened heat transfer apparatus does not require manual control and external energy input; and instead, the heat dissipation intensity can be adjusted automatically according to the heat sink temperature, so that a new approach is provided to solve a high heat flux problem of modern electronic devices.

The invention discloses a gas-blowing and slag- gathering spray gun for assisting slag-off of molten iron and a using method of the spray gun. The gas-blowing and slag-gathering spray gun comprises a gun barrel, wherein the gun barrel is provided with an opening end and a closed end; spray ports are symmetrically formed on the barrel wall, close to the closed end, of the gun barrel based on the middle axis of the gun barrel; the middle axes of the spray ports are vertical to the middle axis of the gun barrel; and the ratio of the inner diameters of the spray ports to the inner diameter of the gun barrel is (0.35-0.70):1. The gas-blowing and slag-accreting spray gun has the characteristics of being simple in structure, long in service life, stable in gas-blowing and slag-accreting operation and the like. The gas-blowing and slag-gathering spray gun disclosed by the invention is combined with the using method of the spray gun, so that the molten iron slag gathering degree can be improved, the bare area of the molten iron is increased, the erosive wear to the molten iron tank wall is small, the slag-off iron loss is low and the slag-off time is short.

The invention relates to a digital intelligent driving device of a high-power IGBT (insulated gate bipolar translator). The digital intelligent driving device comprises a DC / DC (direct-current) conversion circuit, a CPLD (complex programmable logic device) logic control module, an active clamping feedback module, a retreating-protection over-current feedback module and a two-stage di / dt detecting module, wherein the output end of the DC / DC conversion circuit is connected with an undervoltage protection module; the output end of the undervoltage protection module is connected with the CPLD logic control module; and the input end of the CPLD logic control module is connected with a PWM (pulse-width modulation) pulse-width modulator, and the output end of the CPLD logic control module is connected with a variable-gate resistance module. The digital intelligent driving device provided by the invention has the advantages that the protection functions such as power isolation, over-current protection, di / dt and active clamping are integrated, the logic control is realized by adopting the programmable logic device CPLD, the ideal driving performance is achieved by real-time variable-gate resistance driving, and soft shut-off is realized by selecting proper shut-off resistance according to the over-current degree, so that the switching loss is effectively reduced and a Miller effect is weakened.

A multilayer electroactive polymer actuator and a method of manufacturing the same. The multilayer electroactive polymer actuator is divided into an actuating area and a non-actuating area. A plurality of driving electrodes, each formed on a side of the respective polymer layer to correspond to the actuating area. A plurality of extension electrodes connected to the driving electrodes and a common electrode for vertically connecting the extension electrodes are formed to correspond to the non-actuating area. A via hole is formed through the plurality of non-actuating layers and has a diameter which increases in a stepwise manner upwards. The common electrode is formed in the via hole. The driving electrode includes an alloy of aluminum and copper. The extension electrode is formed of material having a small reactivity with respect to laser as compared to the reactivity of the polymer layer.

To provide an electrostatic actuator that generates high pressure under a given voltage and includes an insulating film exhibiting excellent insulation resistance, a droplet discharge head that includes the electrostatic actuator and a method for manufacturing the droplet discharge head, a droplet discharge apparatus that includes the droplet discharge head and has excellent printing performance, and a device that includes the electrostatic actuator and has excellent driving performance. A diaphragm 12, a counter electrode 17 opposite to the diaphragm 12 with a gap interposed therebetween, and an insulating film 16 on a surface of the diaphragm 12 opposite to the counter electrode 17 are included. The insulating film 16 includes at least a dielectric film 16a formed of a substance having a higher relative dielectric constant than silicon oxide.

The invention discloses a shift register and a display device. The shift register comprises a pre-charging unit, a pull-up unit, a first pull-down unit, and a second pull-down unit. The pre-charging unit receives a first input signal and a second input signal, and outputs a pre-charging signal via a first node. The pull-up unit receives the pre-charging signal, a first clock signal and a second clock signal, and outputs a scanning signal via a second node. The first pull-down unit receives the pre-charging signal, a first pull-down control signal and a second pull-down control signal, and controls whether to pull down the scanning signal to a reference level. The second pull-down unit receives the pre-charging signal, the first pull-down control signal and the second pull-down control signal, and controls whether to pull down the scanning signal to the reference level. The shift register of the invention is of high reliability and high stability. Moreover, the display quality of the display device comprising the shift register is improved.

On a restart of an engine accompanied with a change from a motor drive of a hybrid vehicle to a hybrid drive, when a temperature of a catalyst in a catalytic converter located in an exhaust pipe of the engine decreases below a preset reference temperature to be out of a specific temperature range of ensuring sufficient catalyst performance, a power restriction value is set according to the catalyst temperature and an EV drive time representing a time duration of the motor drive. An engine power demand to be output from the engine is set under output restriction with this power restriction value. The engine and two motors are then controlled with the set engine power demand. This arrangement effectively prevents poor emission and ensures good driving performance of the vehicle even in the event of a temperature decrease of the catalyst by the motor drive of the vehicle.

The invention relates to a high-precision output voltage-adjustable reference voltage generating circuit which comprises an output-adjustable current summation type bandgap reference voltage generating circuit, an output-adjustable current summation type difference reference voltage generating circuit and a reference voltage buffer driving circuit. The output-adjustable current summation type bandgap reference voltage generating circuit generates a bandgap reference voltage Vref for output; through the output-adjustable current summation type difference reference voltage generating circuit, difference reference voltages VTP and VTN are generated for output; and through the reference voltage buffer driving circuit, reference voltages Vrefp and Vrefn are output. Through current summation and a floating current source negative feedback control technology, the output voltage-adjustable fully differential reference voltage buffer driving circuit is designed. The buffer driving circuit is further of a structure with a source electrode push-pull output and duplicate circuit, a smaller output impedance is obtained while the power supply rejection ratio (PSRR) of the reference voltage is further improved, and the high-precision output voltage-adjustable reference voltage generating circuit has better driving capability.

What is disclosed is a method for controlling the Drive Motor Section of a two electric tandem motor apparatus for use in a Hybrid electric drive vehicle. Described is the method used in an exemplary embodiment by a Vehicle Control Unit (VCU) which uses one or more special purpose CPUs to control the selective use of two electric machines “locked” to one another for maximum power needed during acceleration or unlocked for steady state and limited acceleration driving. Also described and claimed is the VCU control of the dual nature of the Drive Motor portion of the system that can be locked to / unlocked from the generator motor to supply power to the vehicle wheels for acceleration and capture energy during deceleration using regenerative braking techniques, while minimizing any start / stop commands to the hydrocarbon fuel powered engine.

The invention discloses an aiding hill starting method based on an anti-lock braking system (ABS) and an aiding hill starting system using the method. The method comprises a step of judging the launching of aiding hill starting, wherein the situation that a vehicle can be in an aiding hill starting launching state is confirmed, a step of aiding hill braking, wherein a pressure maintaining process is carried out on a brake air chamber, and a step of aiding the hill starting, wherein an ABS pressure reducing signal is sent to reduce the pressure in the brake air chamber to zero, and a clutch is completely combined. The system can judge that the vehicle is located in the flat ground or the slope by obtaining vehicle velocity, acceleration, tap position or foot braking information, the aiding hill starting system is automatically started to control the hill starting according to a judgment result, a driver does not need to manually operate, unnecessary backward sliding times can be reduced, and unnecessary accidents are avoided.