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458results about How to "Reliable drive" patented technology
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Magnetic adsorption wall climbing robot with curved surface adaptive ability
ActiveCN1736668AWith characteristicsHave made significant progressManipulatorDrive wheelRotational freedom
Disclosed is a magnetic-absorption wall-creeping robot with a self-adaptive capability to curved face, which belongs to the art of robot. Said robot comprises a wheeled shifter and a plural of permanent-magnet absorption devices, the wheeled shifter containing an undercarriage, a drive gear, a traction wheel and an auxiliary balancing wheel; one end of the permanent-magnet absorption device being equipped with the magnetic conduction wall surface by auxiliary balancing wheel, and the other end equipped with the undercarriage or other permanent-magnet absorption device by curved face self-adaptive device with rotational freedom degree of among one to three; the traction wheel being laid out symmetrically and driven by differential drive, and the differential of the traction wheel realizing the deflecting on the magnetic conduction wall surface. The wall-creeping robot having a strong loading power, a flexible motility and a super self-adaptive capability to curved face, has a perfect prospect.
Owner:TSINGHUA UNIV
Light-emitting diode drive circuit, light source device, and display device
InactiveUS20070013620A1Increase voltageMore reliableStatic indicating devicesElectroluminescent light sourcesEngineeringCurrent mirror
A display device includes a light source device and an image display panel operable to display an image using light emitted from the light source device. The light source device includes a plurality of series drive circuits each including a predetermined number of series-connected light-emitting diodes, a constant-current circuit outputting a constant amount of current to one of the plural series drive circuits serving as a reference, the plural series drive circuits being connected in parallel with the current output, a current mirror circuit operable to allow the same amount of current to flow through the plural series drive circuits, and a voltage dropping circuit operable to cause a voltage drop of a predetermined level in the series drive circuit serving as the reference, the voltage dropping circuit being disposed in series with the light-emitting diodes forming the series drive circuit serving as the reference.
Owner:SONY CORP
Segmentation model training method and apparatus, road segmentation method and apparatus, and vehicle control method and apparatus
ActiveCN106558058AHigh speedImprove efficiencyImage enhancementImage analysisSample imageStandard samples
The invention provides a segmentation model training method to solve the problems of low training efficiency, long time consumption, and high cost of a segmentation model in the prior art. The method includes: performing free area segmentation on a training sample image by employing an unsupervised free area segmentation method to obtain a free area segmentation image of the training sample image; performing iterative training on a preset convolution neural network by employing a self-paced learning method and by regarding the training sample image as an input image and regarding the free area segmentation image as a mark image to obtain an initial segmentation model; and training the initial segmentation model by regarding a preset standard sample image as the input image and regarding a road area image marked on the standard sample image in advance as the mark image to obtain a target segmentation model. By employing the method, the segmentation accuracy of the segmentation model obtained by training is ensured, the training speed and efficiency can be increased, and road segmentation is performed based on the target segmentation model so that the result of road segmentation is more accurate.
Owner:BEIJING TUSEN WEILAI TECH CO LTD
Bidirectional switch and method for driving bidirectional switch
InactiveUS20080143421A1Lower on-resistanceReduce power consumptionTransistorSolid-state devicesThreshold voltageVoltage
A bidirectional switch comprises a first FET, a second FET, and a switch controller for controlling a conductive state in which current from a bidirectional power supply electrically connected to drain terminals bidirectionally flows, and a nonconductive state in which the current does not flow. In the conductive state, the switch controller applies, to gate terminals of the first FET and the second FET, a voltage higher than a threshold voltage with reference to a potential at a node to which source terminals of the first FET and the second FET are connected. In the nonconductive state, the switch controller causes the bidirectional power supply and each gate terminal to be electrically insulated from each other, and applies a voltage lower than or equal to the threshold voltage with reference to the potential at the node.
Owner:PANASONIC CORP
Drive force output apparatus, method for controlling same apparatus, and vehicle
InactiveUS20090131215A1Reliably securedEasy to controlHybrid vehiclesDC motor speed/torque controlDrive shaftElectric power
A drive force output apparatus has a controller that sets an upper limit of power allowed to be consumed by an auxiliary based on at least a reference power storage amount corresponding to the reference of the range in which the power storage amount of a power storage is monitored and controls a power generator, an electric motor, and the auxiliary such that drive force corresponding to target drive force is output to a drive shaft while the power consumed by the auxiliary remains equal to or smaller than the upper limit.
Owner:TOYOTA JIDOSHA KK
Actuating drive and emergency energy supply device
InactiveUS20070024227A1Increase internal resistanceImprove availabilityDC motor speed/torque controlWind motor controlFrequency changerSupply energy
An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a link connected to the rectifier, and a d.c.-to-a.c. inverter for feeding the motor, the link carrying a specified nominal operating voltage in a network-fed normal operation of the frequency converter. Furthermore, an auxiliary energy supply device is provided that is connected to the link. The auxiliary energy supply device includes and energy store which makes available a support voltage that amounts to less than 80% of the nominal operating voltage of the link. A diode is connected between the energy store and the link, and is arranged, with regard to its forward direction, in such a way that it feeds a support voltage from the energy store into the link if the link voltage falls below the support voltage. The diode prevents a current flow between the energy store and the link if the link voltage is greater than the support voltage. A charging device for the energy store has a lower charging voltage than the nominal operating voltage of the link.
Owner:BOSCH REXROTH AG
Connector for flexible printed circuit
InactiveUS7147498B1Firmly connectedReliable driveEngagement/disengagement of coupling partsCoupling contact membersEngineeringActuator
A connector for a sheet-like member includes a housing (1) providing an open mouth (110) for receiving the sheet-like member and a support surface (122); terminals (2, 3) arranged in the housing and each comprising a fulcrum portion (25, 35), a contact beam (22, 32) extending into the open mouth from the fulcrum portion and a pivot beam (24, 34) extending in opposite direction to the contact beam from the fulcrum portion; and an actuator (4) rotatable between an open and a closed positions. The actuator has shaft portions (41) pivotally engaging with the pivot beams and cam portions (42) between the shaft portions and rotatably supported on the support surface. The shaft portions will urge upwards the pivot beams to force the contact beams against the sheet-like member with aid of the fulcrum portions while the actuator is rotated from the open position to the closed position.
Owner:HON HAI PRECISION IND CO LTD
High power laser diode driver
InactiveCN101132115ADrive stabilityGuaranteed uptimeLaser detailsSemiconductor lasersConstant powerHigh power lasers
This inventive high power diode laser driver is used for driving high power diode laser or diode laser array and providing complete protective units, with its kernel part of voltage controlled current source. The circuit board of the voltage controlled current source consistes of: a voltage reference circuit (1), current-limiting circuit (2), soft starting circuit (3), anti-surge circuit (4), modulation input circuit (5), feed-back control circuit (6) and current driving circuit (7). This inventive negative feedback principle stable output current can provide: constant current driving mode (CCD mode) and constant power driving mode (CPD mode), which CCD mode can preset precisely the working current and limiting current of LD with long duration stability of 38ppm, and which CPD mode can automatically regulate output current to ensure constant power working of LD, and said (2) and (3) provides safety driving of LD.
Owner:JILIN UNIV
Piezoelectric element drive device, electronic apparatus, and method for controlling piezoelectric element drive frequency
InactiveUS20090243431A1Improve accuracyReliable drivePiezoelectric/electrostriction/magnetostriction machinesFlexible member pumpsElectricityDriver circuit
A drive device for a piezoelectric element includes a transformer, a driver circuit, and a control circuit. The transformer has a primary side and a secondary side. The drive circuit causes the secondary side to generate a drive signal whose frequency varies in accordance with a control signal input to the primary side and to supply the generated drive signal to the piezoelectric element. The control circuit changes a frequency of the control signal in a predetermined frequency range multiple times, detects an impedance change in the piezoelectric element each time the control-signal frequency is changed, determines a resonant frequency of the piezoelectric element on the basis of a transition of the impedance change, and controls the control-signal frequency so that the determined resonant frequency is obtained.
Owner:SONY CORP
Convertible top and driving device for a convertible top
InactiveUS20010040385A1Reliable driveImprove stabilityEngine sealsVehicle sealing arrangementsPush and pullMain bearing
The invention relates to a convertible top for a convertible, comprising a front shell piece, a middle shell piece and a rear shell piece; said shell pieces, when in the closed state, being arranged as a roof over a passenger compartment of the convertible; said front shell piece being capable to be raised during a positively controlled opening operation such that it is moved over the middle shell piece; said rear shell piece being capable to be rotated into a folded-over position; the three shell pieces being designed such that they can jointly pivot counter to a direction of travel about a main bearing into a packaging position; wherein in said packaging position said front shell piece and said middle shell piece are oriented in the same direction over said rear shell piece, that is stored in the folded-over position. The invention further relates to a driving device for a convertible top, comprising a main bearing, a first link, a second link, an intermediate link, said intermediate link being coupled to said second link for activation purposes, a four-bar linkage, said four-bar linkage being coupled to said first link for activation purposes, a first bearing point, a driving cylinder, said driving cylinder being coupled with said main bearing at said first bearing point, and a push and pull rod, said push and pull rod being driven by said driving cylinder and being designed for a simultaneous action of force on the intermediate link and the four-bar linkage.
Owner:WEBASTO EDSCHA CABRIO
Convertible top and driving device for a convertible top
InactiveUS6478362B2Reliable driveImprove stabilityEngine sealsVehicle sealing arrangementsPush and pullBiological activation
Owner:WEBASTO EDSCHA CABRIO
Actuator
ActiveUS20070194738A1Excessive vibrationIncrease freedomFluid-pressure actuator safetyDC motor speed/torque controlEngineeringActuator
An actuator includes a cylinder, a piston that is disposed in the cylinder and moves by supply and exhaust of working oil to and from the cylinder, a movable rod that is connected to the piston, a screw shaft, at least a part of which is inserted into the movable rod, a nut that is threaded to the screw shaft and moves integrally with the piston, and an electric motor that rotates the screw shaft forward or backward.
Owner:NABLESCO CORP
Jog dial actuating device
InactiveUS20100110044A1The process is convenient and fastSave spaceCathode-ray tube indicatorsSubstation equipmentEngineeringElectronic equipment
Owner:SONY ERICSSON MOBILE COMM AB
Method of operating a display system in a vehicle for finding a parking place
ActiveUS7088262B2Easy to explainImprove visibilityDigital data processing detailsIndication of parksing free spacesImaging processingSteering angle
A method of operating a display system in a vehicle (03) for finding a suitable parking place (06) with at least one camera (01) with which an observation area in the vicinity of the vehicle (03) can be recorded, with an image processing unit in which the image data coming from a camera (03) can be processed and a display screen (02) in the interior of the vehicle on which the image data coming from the image processing unit can be displayed as an image (07). A parking place symbol (08, 18, 20) is superimposed by the image processing unit on the current image (07) on the display screen (02), symbolizing true to scale an area in the current image (07) which the vehicle (03) can reach in parking, starting from its current position, taking into account the properties of the vehicle, in particular the size of the vehicle and the maximum steering angle.
Owner:DONNELLY HOHE GMBH & CO KG
Damped, self-cleaning flow shutoff valve and associated methods
InactiveUS7591282B1Reduce buildReliable driveOperating means/releasing devices for valvesEqualizing valvesEngineeringStreamflow
The valve comprises a housing defining a flow passage, an outer cylindrical wall, an inner cylindrical wall, and a valve seat. An annular cavity is formed between the outer cylindrical wall and the inner cylindrical wall. A valve member is slidably mounted within the housing. The valve member includes an annular skirt section extending in the downstream direction. A downstream-facing portion of the valve member comprises a sealing portion configured to selectively engage the valve seat. The valve member is movable between an upstream no flow position, a downstream shutoff position, and a normal flow position intermediate the no flow position and the shutoff position. A biasing element is disposed between the housing and the valve member so as to bias the valve member away from the valve seat. When the valve member moves from the normal flow position to the shutoff position, the annular skirt section penetrates the annular cavity and displaces water therefrom to dampen the downstream movement of the valve member.
Owner:THE ACHTERMAN REVOCABLE LIVING TRUST DATED FEBRUARY 15 2005
Stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform
ActiveCN104320016ASports reliableReliable drivePiezoelectric/electrostriction/magnetostriction machinesLinear motionElectricity
The invention relates to a stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform and the linear motion along the x and y direction and the rotating motion around the z axis direction can be implemented. The stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform comprises a lower layer of x axis linear driver assembly, a middle layer of y axis linear driver assembly and an upper layer of z axis rotating driver assembly which are connected in turn and sawtooth waves are input towards piezoelectric stacks based on the stick-slip inertia principle to implement the stepping type continuous feeding of an output terminal. The symmetry and the frequency of the sawtooth waves are changed to change the feeding direction and speed. The positioning motion of the rapid feeding positioning and the precise feed positioning can be implemented through different modes of control on the piezoelectric stacks and accordingly the rapid and high precision positioning can be obtained simultaneously. The stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform has the advantages of being small and compact in structure, large in output stroke, adjustable in speed, large in bearing capacity, stable and reliable in work, good in repeatability and suitable for large stroke of precision motion control occasions with strict space size constraints.
Owner:JILIN UNIV
Discharged fuel diluter and discharged fuel dilution-type fuel cell system
InactiveUS6916563B2Reduce noiseLess installation spaceElectric propulsion mountingFuel cell auxillariesAutomotive engineeringFuel cells
A discharged fuel diluter includes: a retention region with a predetermined volume, into which a fuel discharged from a fuel cell is retained at the time of purging; a dilution region with a predetermined volume, through which air discharged from the fuel cell flows and at which the air is mixed with the fuel from the retention region to dilute the fuel; and a communicating portion, through which the fuel flows from the retention region to the dilution region.
Owner:HONDA MOTOR CO LTD
Actuating drive and emergency energy supply device
InactiveUS7566981B2Cost effectivelyHigh operating requirementsDC motor speed/torque controlWind motor controlFrequency changerSupply energy
An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a link connected to the rectifier, and a d.c.-to-a.c. inverter for feeding the motor, the link carrying a specified nominal operating voltage in a network-fed normal operation of the frequency converter. Furthermore, an auxiliary energy supply device is provided that is connected to the link. The auxiliary energy supply device includes and energy store which makes available a support voltage that amounts to less than 80% of the nominal operating voltage of the link. A diode is connected between the energy store and the link, and is arranged, with regard to its forward direction, in such a way that it feeds a support voltage from the energy store into the link if the link voltage falls below the support voltage. The diode prevents a current flow between the energy store and the link if the link voltage is greater than the support voltage. A charging device for the energy store has a lower charging voltage than the nominal operating voltage of the link.
Owner:BOSCH REXROTH AG
Abrasion-resistant belt
A belt having a first cover layer with a first top surface and preferably also a second cover layer with a second top surface, wherein the first cover layer and, if present, the second cover layer are made of a foam having a thermoplastic or thermoplastic elastomer, in particular a TPU or PEBA. The belt is suitable e.g. as a machine tape in mail sorting machines and for power transmission.
Owner:HABASIT AG
Z source power transformation based photovoltaic network inverter
InactiveCN101083399AReal-time acquisitionImprove starting pointSingle network parallel feeding arrangementsPhotovoltaic energy generationEngineeringSolar cell
The invention publishes a light bend combined network transformation installment which based on the Z source power transformation, including: the power transform main return route, the DSP observation system and the IGBT actuation module, the DSP observation system is used in sampling of the voltage, the electric current signal, and operates to obtain the PWM signal sequence with the adjustable pulse width, again transforms the IGBT actuation module into the direct drive IGBT signal, the power transform main return route includes the solar cell array, the Z source impedance network, the contravariant network and the filter reactor, the two out-ports of the solar cell array separately connects with the two input end of the Z source impedance network, the two out-ports of the Z source impedance network separately connects with the two input end of the contravariant network, a out-port of contravariant network connects to a end of filter reactor, a end of the filter reactor is used to connect the end of the electrical network, the another out-port of the contravariant network is used to connect the another end of the electrical network directly, the direct drive IGBT signal which is transformed by the above IGBT actuation module is used in realizing the contravariant network lead and shutdown.
Owner:SOUTHEAST UNIV
Actuator
ActiveUS7397209B2Increase freedomReliable driveFluid-pressure actuator safetyDC motor speed/torque controlEngineeringActuator
An actuator includes a cylinder, a piston that is disposed in the cylinder and moves by supply and exhaust of working oil to and from the cylinder, a movable rod that is connected to the piston, a screw shaft, at least a part of which is inserted into the movable rod, a nut that is threaded to the screw shaft and moves integrally with the piston, and an electric motor that rotates the screw shaft forward or backward.
Owner:NABLESCO CORP
Semiconductor device, display apparatus, and display apparatus driving method
ActiveUS20060012549A1The implementation process is simpleMinimizing pixel areaStatic indicating devicesIdentification meansDevice materialData signal
Each of pixels arranged in a matrix comprises an element to be driven, a switching TFT, an element driving TFT, and a storage capacitor, and a potential shifting capacitor. The storage capacitor is connected between the gate and a source of the element driving TFT. Before a data signal is output, a precharge signal is output to a data line to turn on the element driving TFT, a set signal is output to a power supply line that is used to supply power through the turned-on element driving TFT to the element to be driven, and, before a data signal is applied to one electrode of the storage capacitor, the source of the element driving TFT and another electrode of the storage capacitor are discharged in response to the set signal to be fixed at a constant potential. By performing control as described above, the element to be driven is driven using a minimum number of circuit elements.
Owner:SANYO ELECTRIC CO LTD
Scanning signal line drive circuit, display device having the same, and drive method for scanning signal line
ActiveUS20140035891A1Reduce controlGuaranteed uptimeCathode-ray tube indicatorsInput/output processes for data processingBistable circuitsControl signal
The present invention is directed to suppress dullness of a scanning signal in a scanning signal line drive circuit. A bistable circuit is provided with an input terminal (43) for receiving a first clock signal (CK), an input terminal (48) for receiving a control signal (CT), an input terminal (49) for receiving a level down signal (LD), an output terminal (51), a thin film transistor (T2), and a thin film transistor (TA). The thin film transistor (T2) has a gate terminal connected to a first node (N1), a drain terminal connected to the input terminal (43), and a source terminal connected to the output terminal (51). The thin film transistor (TA) has a gate terminal connected to the input terminal (48), a drain terminal connected to the first node (N1), and a source terminal connected to the input terminal (49). The potential of the control signal (CT) becomes the high level in a control period as a period except for the first one horizontal scanning period in a vertical blanking period. The level down signal (LD) is a potential lower than DC power supply potential (Vss).
Owner:SHARP KK
Horizontal spool for direct needle closing
A fuel injector assembly includes an intensifier piston and a spool valve that are movable along a first axis. The needle valve is controlled by a needle control valve that includes a spool that moves in a direction transverse to movement along the first axis.
Owner:SIEMENS VDO AUTOMOTIVE CORP
Control Circuit for a Window Lifter Drive
ActiveUS20110283619A1Simple meansReliable assessmentProgramme controlWindowsMobile vehicleControl signal
The invention in certain embodiments relates to a control circuit for an electric-motor-operated window lifter (10) of a motor vehicle (1), the control circuit having a first switch (11) for opening a vehicle window (7), a second switch (12) for closing the vehicle window (7), and a control device (15), which, when one of the switches (11, 12) is activated, actuates the window lifter (10) to move the vehicle window (7) in the opening direction or closing direction. The control device (15) monitors the lighting current (ILED) which flows across a lighting element (14) for the switches (11, 12), and generates a control signal (I12), if appropriate, for opening the vehicle window (7) if the lighting current (ILED) exceeds an overcurrent threshold value (IRef) thereby detecting inundation of the vehicle.
Owner:BROSE FAHRZEUGTEILE GMBH & CO KG HALLSTADT (DE)
Device for decanting a liquid
ActiveUS7013936B2Accurate measurementReduce pressureBarrels/casks fillingClosuresSpring forceEngineering
An arrangement for decanting liquids includes a tubular-shaped support (1) having a flow channel (2). The flow channel (2) is blocked by a valve plate (3) which is coupled via axial connecting elements (4, 4′) to the relative movement of an inner sleeve (5) and an outer sleeve (6) of the support (1). The outer sleeve (6) lies in overlapment and the axial connecting elements (4, 4′) extend into the interior of the support. The valve plate (3) can be lifted from its valve seat against a spring force engaging at the inner sleeve (5) and at the outer sleeve (6). A radial flange collar (13) is formed on the outer sleeve (6). To ensure an accurate metering at the highest possible volume flow of the discharged liquid at low manufacturing costs, the valve plate (3) is mounted at a free end (9) of the support (1) and the axial connecting elements are configured as tension rods (4, 4′) and are arranged next to an edge of the valve plate (3).
Owner:ANDREAS STIHL AG & CO KG
Vehicle driving route tracking control method and device
The invention provides a vehicle driving route tracking control method and device. The vehicle driving route tracking control method comprises the steps of obtaining the driving state information of atarget vehicle, the surrounding environment information of the target vehicle, and the traffic state information of the target vehicle; according to the driving state information of the target vehicle, the surrounding environment information of the target vehicle and the traffic state information of the target vehicle, generating a target route for driving of the target vehicle, and obtaining a plurality of target points of the target route at the current moment; calculating steering angle information according to the information of the plurality of target points; and controlling the target vehicle to drive along the target route according to the steering angle information. According to the method, the target vehicle can flexibly track complex driving routes, and the problem that the vehicle cannot track complex driving routes such as a large-curvature route and an urban variable-curvature route with complex terrain is solved, so that the vehicle can safely and reliably drive on the road, and the driving safety of the vehicle is improved.
Owner:CHINA INTELLIGENT & CONNECTED VEHICLES (BEIJING) RES INST CO LTD
Drive force output apparatus, method for controlling same apparatus, and vehicle
InactiveUS7766788B2Reliably securedEasy to controlHybrid vehiclesDC motor speed/torque controlDrive shaftElectric power
A drive force output apparatus has a controller that sets an upper limit of power allowed to be consumed by an auxiliary based on at least a reference power storage amount corresponding to the reference of the range in which the power storage amount of a power storage is monitored and controls a power generator, an electric motor, and the auxiliary such that drive force corresponding to target drive force is output to a drive shaft while the power consumed by the auxiliary remains equal to or smaller than the upper limit.
Owner:TOYOTA JIDOSHA KK
Input device
InactiveUS20060017708A1Reliable driveImproper operationCathode-ray tube indicatorsInput/output processes for data processingComputer scienceTouch panel
An input device is provided by piling up a plurality of touch panels in which an upper conductive layer of an upper substrate and a lower conductive layer of a lower substrate are disposed to oppose each other with a predetermined distance therebetween. Thus, inputting operations such as selection of a menu item or drawing of a character and determination of the item or character can be performed without tilting the input device downward but keeping it stationary and, hence, reliable actuation free from operating error can be attained.
Owner:PANASONIC CORP
Bicycle control apparatus
ActiveUS20140222268A1Improve performanceReduce rotational forceSpeed controllerDigital data processing detailsEngineeringSprocket
A bicycle control apparatus is basically provided for controlling a bicycle in which a first rotational force of a crank and a second rotational force of an electric riding assistance motor for riding assistance are transmitted to a rear sprocket. The bicycle control apparatus includes a rotational force detector and a controller. The rotational force detector is configured to detecting the first rotational force imparted to the bicycle crank. The controller is programmed to reduce the second rotational force of the electric riding assistance motor to actuate a transmission of the bicycle in accordance with the first rotational force detected by the rotational force detector.
Owner:SHIMANO INC
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