167 results about "Power group" patented technology

The invention provides a dual-motor dual-energy composite drive system, which includes a power battery pack, a super capacitor pack, a DC / DC converter, a main drive motor, a main drive motor controller, an auxiliary drive motor, an auxiliary drive motor controller, Auxiliary drive shaft, main drive shaft and double input coupling drive axle. The supercapacitor bank is responsible for supplying power to the auxiliary drive motor, which provides auxiliary drive torque for the vehicle to start, accelerate, and uphill, and provides motor braking torque for braking feedback. The electric energy fed back by auxiliary motor braking is completely absorbed by the supercapacitor. The power battery pack is responsible for supplying power to the main drive motor and other electric accessories of the vehicle. When the power stored in the supercapacitor pack is lower than a certain limit, the power battery pack will perform compensatory constant power charging through the DC / DC converter. The output torques of the main drive motor and the auxiliary drive motor are coupled through a double-input drive axle to meet the vehicle's hill start and acceleration performance.

A fuel injector with various embodiments of a damper that reduces noise generated between a valve group subassembly and a power group subassembly during operation of the fuel injector. A mass damper is also shown and described. A method of reducing sound in the valve group subassembly is also disclosed.

The invention discloses a power battery group of an electric vehicle. The power battery group comprises a battery group shell and a plurality of battery modules arranged in the power group shell, and also comprises heat management parts integrated in the power group shell, wherein the heat management parts comprise a rear evaporator, a battery heater and a battery fan; the setting positions of the rear evaporator, the battery heater and the battery fan in the battery group shell need to meet the conditions that cold air formed by the rear evaporator and hot air formed by the battery heater are accelerated to circulate under the action of the battery fan and flow through all the battery modules. The power battery group disclosed by the invention has the advantages that closed design is adopted, so that the dustproof and waterproof grade is high; the heat management parts are arranged inside, and air ducts are simple in design and high in temperature consistency; on the basis of the power battery group, a charging management system and a heat management system are small in occupied space, have no heat loss in the conveying process and are low in cost; and the control integration level is high.

A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly connected to a valve group subassembly. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The terminal has a first generally planar surface contiguous with a generally planar surface of a terminal connector to electrically connect the terminal to the electromagnetic coil. The valve group subassembly includes a tube assembly having an inlet tube and a filter assembly. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An armature assembly confronts the pole piece and is adjustably biased by a member and adjusting tube toward engagement with a seat assembly. A lift setting device sets the axial displacement of the armature assembly. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another.

A variable power optical system includes, in order from the object side, a first lens group having negative refractive power, a variable power group having positive refractive power, and a final lens group having positive refractive power. The variable power group is provided with, in order from the object side, a first lens element having positive refractive power, a second lens element, and a third lens element. The second lens element has a convex shape on the object side. The final lens group includes a positive lens. The variable power optical system satisfies the following conditions:10≦VdLg≦45−1.0<(R2a−R2b) / (R2a+R2b)<1.0where VdLg is the Abbe number of the positive lens of the final lens group with respect to the d line, R2a is the curvature radius of the object-side surface of the second lens element, and R2b is the curvature radius of the image-side surface of the third lens element.

A power management method and mechanism for dynamically determining which of a plurality of blocks of an electrical device may be powered on or off. A device is contemplated which includes one or more power manageable groups. A power management unit associated with the apparatus is configured to detect instructions which are scheduled for execution, identify particular power group(s) which may be required for execution of the instruction, and convey an indication which prevents the particular power group(s) from entering a powered off state, in response to detecting said instruction. If the power management unit does not detect an incoming or pending instructions, for a predetermined period of time, which requires a particular power group(s) for execution, the power management unit may convey an indication which causes or permits the corresponding power group(s) to enter a powered off state. A power group may automatically decay to a powered off state in the absence of a detected instruction requiring the power group. Instructions may be encoded to identify required power groups.

A multiphase DC-DC converter includes multiple groups of first and second LLC power trains coupled in parallel which collectively provide an output voltage to a load. A voltage feedback control loop senses an output voltage for the LLC converter and generates an identical reference current signal for each of the multiple groups of power trains, the signals representing a reference current based on the sensed output voltage, wherein an active current sharing operation is provided between each of the groups. A local current control loop for each of the groups generates PWM control signals to each of the respective first and second power trains based on the reference current, the PWM control signals having an identical frequency but out of phase with respect to each other, wherein a passive current sharing operation is provided within each of the plurality of power groups.

An electrical energy supply system providing voltage to a load and including an external power group and a DC supply device is disclosed. The external power group provides an external voltage. The DC supply device includes a bus, a converting unit, a storage unit and a smart energy management system (SEMS). The bus receives the external voltage and is coupled to the load. The converting unit converts the external voltage into a converted voltage or converts a stored voltage to generate a converted result and provides the converted result to the bus. The storage unit stores the converted voltage or provides the stored voltage to the converting unit. The SEMS controls at least one of the converting unit, the external power group and the load according to at least one of the external voltage, a voltage level of the bus and a voltage level of the storage unit.

An image-capturing optical system (OP) has first and second prisms (P1, P2) for bending input light at approximately right angles. The optical axis (AX) at the light input surface of the first prism (P1) and the optical axis (AX) at the light output surface of the second prism (P2) are substantially parallel to each other. A lens element for forming at least one power group is provided on a light path sandwiched between the first and second prisms (P1, P2), and a power group located closest to the light input surface of the second prism (P2) is a positive power group. The light input surface of the second prism (P2) has a concave shape on the object side and satisfies the conditional expressions -4.2 < fp2 / f < -0.2 (fp2: the focal length of the second prism, f: the focal length of the entire image-capturing optical system) and 0.2 < |f_lp / fp2| < 1.5 (f_lp: the focal distance of the power group located closest to the light input surface of the second prism).

A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly and a valve group subassembly having a respectively connected first and second connector portions. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The valve group subassembly insertable within the overmold includes a tube assembly having an inlet tube and a filter assembly. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece and is adjustably biased by a member and adjusting tube toward engagement with a seat assembly. A lift setting device sets the axial displacement of the armature assembly. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another.

A zoom lens comprises: a stationary group that is stationary at the time of variable power; and a variable power group, disposed on an image side of the stationary group, that makes a variable power operation by moving in an optical axis direction at the time of variable power, wherein the stationary group comprises: a first lens group including a negative meniscus lens and a positive lens and having a positive refractive power as a whole; and a second lens group, disposed on the image side of the first lens group, including: a negative lens group including a negative meniscus lens and a positive lens; and a positive lens group including at least one positive lens, in order from an object side, the second lens group having a positive refractive power as a whole.

A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly and a valve group subassembly having a respectively connected first and second connector portions. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The valve group subassembly insertable within the overmold includes a tube assembly having an inlet tube and a filter assembly and sealing ring proximate the inlet tube. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece and is adjustably biased by a member and an adjusting tube toward engagement with a seat assembly. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another.

A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly and a valve group subassembly having a respectively connected first and second connector portions. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The valve group subassembly insertable within the overmold includes a tube assembly having an inlet tube and a filter assembly. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece and is adjustably biased by a member engaged with an adjusting tube with a filter assembly mounted thereon. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another.

The invention relates to a photovoltaic power station reactive power grouped adjustment method. The method includes the following steps that: load nodes are grouped; merging calculation is performed on power generation units in a station according to the correlation of generated power output and load, so that different power generation nodes can be formed, and the overall output of a system can track local load to the greatest extent; an objective function is built through adopting a multi-objective reactive power optimization algorithm, and the reactive target values of the power generation nodes are calculated through utilizing a hierarchical multi-particle swarm optimization algorithm, and reactive power adjustment instructions Qrefi to be distributed of the power generation nodes are calculated; and the reactive power adjustment instructions Qrefi to be distributed of the power generation nodes are distributed, and reactive power instructions Qrevi or power factor instructions cos theta invi of inverters are calculated according to the number of turned-on inverters in the inverters and the current operation states of the inverters under the power generation nodes, and the reactive power instructions Qrevi or power factor instructions cos theta invi of the inverters are transmitted to corresponding inverters. With the method adopted, the dimensionality and complexity of system optimization variables can be decreased, and the generation of a large number of invalid solutions can be avoided, and therefore, the accuracy and speed of reactive power distribution of the inverters can be improved.

A fuel injector and various methods relating to the assembly of the fuel injector. The fuel injector includes a power group subassembly and a valve group subassembly having a respectively connected first and second connector portions. The power group subassembly includes an electromagnetic coil, a housing, at least one terminal, and at least one overmold formed over the coil and housing. The valve group subassembly insertable within the overmold includes a tube assembly having an inlet tube and a filter assembly and sealing ring proximate the inlet tube. A pole piece couples the inlet tube to one end of a non-magnetic shell having a valve body coupled to the opposite end. An axially displaceable armature assembly confronts the pole piece and is adjustably biased by a member and an adjusting tube toward engagement with a seat assembly. The seat assembly includes a flow portion and a securement portion having respective first and second axial lengths at least equal to one another.

The invention discloses a single-unit row logistics bevel wheel sorting device, and belongs to the technical field of logistics equipment conveying. The single-unit row logistics bevel wheel sorting device comprises a rack, wherein multiple bevel wheel groups, a bevel wheel group drive structure and a bevel wheel group steering mechanism are arranged on the rack; the bevel wheel group drive structure comprises multiple friction wheels, a friction power group and a drive motor; the friction wheels are arranged under corresponding fixed beams; friction traction wheels and the corresponding friction wheels tightly fit to form a friction transmission mechanism; the power of the friction traction wheels is provided by the drive motor; the bevel wheel group steering mechanism comprises a steering motor, a steering block, a steering shaft, a reversing crank and a traction rod; and the steering shaft drives the traction rod to move left and right through the reversing crank so as to drive rolling wheel seats on the bevel wheel groups to move left and right, so that the rolling wheel seats of the bevel wheel groups are steered. The single-unit row logistics bevel wheel sorting device provided by the invention is good in steering flexibility, small in occupied space, and easy to sort small-volume articles.

A modular fuel injector for an internal combustion engine, including a valve group subassembly and a power group subassembly. The valve group subassembly includes a first stator member, a second stator member, a non-magnetic shell disposed between the first and second stator members, a valve body, and an armature member. The armature member defines a first working air gap with the first stator member and a second working air gap with the second stator member. The armature member includes a closure member proximate an outlet end and contiguous to a seat in a first configuration. The power group subassembly includes an electromagnetic coil surrounding the passage, a housing encasing the coil, and an ovemold encapsulating the coil and the housing. The coil is energizable to provide magnetic flux that flows through the first and second working air gaps in the direction of the longitudinal axis.

The invention relates to an image information processing method and a device and an image displaying method and a device. The processing method comprises the steps of acquiring header file information of a scan file, obtaining image information of a scintigram with a corresponding multiplying power group, and compressing the image information of the scintigram and writing the compressed image information of the scintigram and the header file information into the image file. The processing device correspondingly comprises an acquiring unit, an obtaining unit, a compressing unit and a writing unit. The displaying method comprises the steps of selecting multiplying power corresponding to displaying multiplying power of the scintigram according to the displaying multiplying power of the scintigram; and reading compressed image information, corresponding to the multiplying power, of the scintigram, and decompressing and displaying. The displaying device correspondingly comprises a selecting unit, an image information reading unit, a decompressing unit and a displaying unit. According to the image information processing method and the device and the image displaying method and the device, all data produced in the scan file can be stored in one image file, and therefore file management efficiency and data calling efficiency are further improved.

The invention provides a wing connected unmanned plane. The front part of a plane body is provided with a fixed wing power group and a front wing, wherein the middle part of the plane body is hollow; an airplane control system and a power supply are put inside the plane body; the airplane control system is connected with the power supply through an electric wire; the back part of the plane body is provided with a back wing and a vertical fin; solar battery packs are uniformly distributed on the front wing and the back wing, and are connected with the power supply; the front wing and the back wing are connected through a lateral vertical wing; a machine frame is fixed on the airplane body positioned between the front wing and the back wing; a rotor wing power group is arranged on the machine frame. The wing connected unmanned plane has the advantages that the two leading functions of the solar energy and vertical taking-off and landing are combined; a fixed wing airplane with the connected wing layout is selected to be used as a main body; a solar panel is laid on the connected wing; the structure improvement is performed on the basis of the connected wing airplane; the installation of four rotor wings is completed; finally, the wing connected unmanned plane uses the solar energy as the auxiliary power; the problem of short electric flight time of the vertical taking-off and landing electric unmanned plane can be well solved.

The invention relates to a bridge segment lifting device and method. A beam top lifting device placed at the top of an erected beam segment and a beam bottom lifting device placed at the bottom of the erected beam segment are included. The beam bottom lifting device comprises a lower walking track. A front wheel pair and a back wheel pair are arranged on the lower walking track. A between-track-front-wheel-pair-and-back-wheel-pair rigid connecting piece is arranged between the front wheel pair and the back wheel pair. Lifting devices are arranged on the front wheel pair and the back wheel pair. A power group which can move along the track is arranged on the back wheel pair. The beam top lifting device comprises a segment lifting state converting and lifting counterpoint mechanism arranged at the top of the erected beam segment. A front horizontal beam and a back horizontal beam are arranged on the mechanism. Lifting devices are arranged on the front horizontal beam and the back horizontal beam. A between-front-horizontal-beam-and-back-horizontal-beam rigid connecting piece is arranged between the front horizontal beam and the back horizontal beam. A pulling pressing jack is arranged at the front end of the top of the mechanism. The bridge segment lifting device and method have the advantages that the field application range of bridge segment lifting and splicing working can be expanded.

The method involves providing non-propelling power to consumers of an aircraft from a storage reservoir (31) of fuel (4) common to an engine of the aircraft and an auxiliary power unit (APU) (2), in a main mode. A basic circulation of the fuel is provided to a combustion chamber (21) of the APU. The APU is used in an emergency mode to provide backup power to vital systems of the aircraft. The chamber is supplied by emergency fuel (6) from an emergency tank (51) according to independent and separated circulation in a part in connection with a primary pipe (52). The fuel is kerosene, and the emergence fuel (6) is hydrogen directly stored in a solid, liquid or gas state in the specific source. An independent claim is also included for power supply architecture.

The invention relates to the signal processing technology field and discloses a signal calibration method and an apparatus thereof, and a signal processing system. The method is characterized by acquiring an emission signal power group output by a transmitter and a corresponding disorder calibration signal group, wherein the disorder calibration signal group includes a mismatched calibration signal group of two path signals I / Q of orthogonal modulation and a direct current disorder calibration signal group; according to the emission signal power group output by the transmitter and the corresponding disorder calibration signal group, determining a disorder direction; and according to the disorder direction, updating a calibration matrix vector group so that digital calibration is performed on a transmitter input signal. A signal calibration function is improved, and rapid convergence and high calibration precision are realized.

In an embodiment, a server monitors a set of parameters associated with future power production capacity of a set of distributed power production units that belong to a power group supplying power to a given serving area of a power grid during a given period of time. The server predicts, for a portion of the given period of time, a temporary power production disruption that will affect the power group based on the monitoring. The server sends a control message to the power group based on the prediction. At least one power production unit in the power group receives the control message, and responsive to the control message diverts at least a portion of power being supplied to the given serving area to local storage, detects the temporary power disruption and conditions power supplied to the given serving area during the temporary power distribution based upon the locally stored power.

The invention relates to a self-adaptive moving target detection method capable of combining polarized classification and power grouping, mainly aiming at solving the problems that in the non-uniform scene, the clutter covariance matrix is low in estimation accuracy and poor in moving target detection performance. The method comprises the steps of: 1, synthetic aperture radar (SAR) image polarized classification; 2, initialized-power grouping; 3, group sample number check; 4, self-adaptive clutter reduction; and 5, constant false alarm rate detection. By adopting the polarized classification method to guide the screening of samples, the method solves the problem that the clutter characteristic difference is not considered in the existing sample screening method, thus having the advantages that the clutter covariance matrix is high in structure estimation accuracy and good in moving target detection performance. By adopting the power grouping method to guide the screening of samples, the method solves the problem that the existing sample power selection is overhigh in power estimation, thus having the advantages that clutter covariance matrix is high in power estimation accuracy and good in low-speed moving target detection performance.

The invention relates to a needle thread supplying device applied to a sewing machine; a power group for pushing a thread passing shaft group and driving a lifting plate to act is arranged on the needle thread supplying device; when the lifting plate enters for unfolding a needle thread clamp group, the thread amount between a support point and a thread hanging plate is the shortest and is also the smoothest; when the lifting plate exits the needle thread clamp group, the needle thread clamp group closely clamps suturing threads, the power group continuously pushes the thread passing shaft group for tensioning the suturing threads; the thread amount between the support point and the thread hanging plate is lengthened; and as the needle thread clamp group closely clamps the suturing threads, the suturing threads cannot obtain the thread amount between the support point and the thread hanging plate from the needle thread supplying device, and can only recycle the thread amount from the front end of the head of the suturing head; therefore, the length of a suturing needle thread is shortened, and the work on manually removing the length of extra thread heads is omitted.

The invention relates to a novel safety elevator, and belongs to the technical field of elevators. The novel safety elevator comprises a lift car, an elevator shaft, rack rails, gears and first powersources for driving the gears to rotate; the lift car is arranged in the elevator shaft, one side wall of the lift car is provided with a lift car door, the elevator shaft is provided with floor doorsat the positions, corresponding to the lift car door, of all floors of a building, the rack rails are installed on the shaft wall of the elevator shaft, the gears are rotatably mounted on the outer walls of the side walls of the lift car and are engaged with the rack rails, and the first power sources are also mounted on the outer walls of the side walls of the lift car; and the three shaft walls, without the floor doors, of the elevator are each provided with one rack rail, the gears and the first power sources form traveling power groups, the outer walls of the three side walls, without thelift car door, of the lift car are each provided with one traveling power group, and the three traveling power groups are in one-to-one correspondence with the three rack rails. By means of the structure, the novel safety elevator is more stable in running, no swinging occurs, the elevator cannot rush out of the top and fall to the bottom, and the safety factor is higher.

Provided is a resonant wireless power transmission system capable of automatically performing frequency conversion and resonance matching. An isolation power group of an energy emission end of the resonant wireless power transmission system provides power for a high-frequency signal generation unit, a high-frequency driving unit and a main circuit power amplification unit in a control circuit. The high-frequency signal generation unit of a signal generation unit is connected with a signal isolation unit connected with the high-frequency driving unit, and the high-frequency driving unit is connected with a frequency conversion and power amplification unit connected with an electric control switch group. The electric control switch group is connected with a first matching capacitor group (Ct) connected with an emission coil, the first matching capacitor group (Ct) and the emission coil form a resonant emission circuit, and an enabling control unit is connected with the high-frequency signal generation unit and the electric control switch group at the same time. A receiving coil group of an energy receiving end is connected with a second matching capacitor group (Cr), the receiving coil group and the second matching capacitor group (Cr) form a resonant receiving circuit, and power is supplied to a working load through frequency regulation.

The invention provides a narrow-wheelspan duct piece transportation vehicle, which relates to equipment for transporting duct pieces used for tunnels and aims at solving the problem to realize transportation of the duct pieces in the tunnels. The narrow-wheelspan duct piece transportation vehicle comprises cabs, a distance measuring sensor, a vehicle frame in a shape like a Chinese character 'ao', the duct pieces, a rubber pad block, a steel duct piece fixing device, an electric control cabinet, an engine, a hydraulic power group, a rotary supporter, a rotary driving device and four walking wheel groups, wherein the four walking wheel groups are of different structures, the vehicle frame in the shape like the Chinese character 'ao' forms a support part of the narrow-wheelspan duct piece transportation vehicle with the rotary supporter and the four walking wheel groups positioned under the vehicle frame, the head and tail two-directional cabs enable the four walking wheel groups to realize the driving and flexible steering through the control on the engine, the hydraulic power group and the electric control cabinet, and the duct piece fixing device arranged on the vehicle frame in the shape like the Chinese character 'ao' is used for fixing the carried duct pieces. Through the design of narrow wheelspan and a long vehicle body and adoption of a vehicle meeting system, the safe vehicle meeting and the safe duct piece transportation of the narrow-wheelspan duct piece transportation vehicle in the tunnels can be realized.