264 results about "Synchro" patented technology

There is provided a power transmission mechanism which is capable of employing one electric motor as a drive source for driving drive wheels and as a drive source for cranking an engine, thereby making it possible to reduce manufacturing costs of the hybrid vehicle, and preventing the motor from offering an extra rotational resistance to the engine when the drive wheels are being driven by the engine, thereby making it possible to enhance fuel economy. In the power transmission mechanism for transmitting the driving force from the engine and/or the electric motor to the drive wheels, when a synchro-clutch for the electric motor, driven by a switching actuator, connects the drive shaft of the electric motor and a driving drive shaft gear to each other, the electric motor is connected to the drive wheels via a meshing gear pair (driving drive shaft gear and driving output shaft gear), whereas when the synchro-clutch connects the drive shaft of the electric motor and a cranking drive shaft gear to each other, the electric motor is connected to the engine via a meshing gear pair (cranking drive shaft gear and cranking input shaft gear), the input shaft of the transmission, and a clutch.

An electrosurgical generator is disclosed, which includes an RF output stage connected to a DC power supply and first and second connections. The first connection includes a first switching component and a first parallel inductor-capacitor resonant circuit. The second connection includes a second switching components and a second parallel inductor-capacitor resonant circuit. The first and second switching components are configured to open and close at a predetermined frequency based on a phase-correlated dual drive signal emitted by a driver and are in a 180 degree out-of-phase relationship. The first parallel inductor-capacitor resonant circuit is further configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit is configured to produce a second half-sin half-sinusoidal waveform. The RF output stage further includes a transformer having a primary winding and a secondary winding and a series inductor-capacitor resonant circuit, which are configured to generate a sinusoidal waveform.

This invention relates to nonvelocity sensor permanent-magnet synchro-motor-air conditioning compressor system. It is characterized by that nonvelocity sensor vector control is used for permanent-magnet synchromotor, so, overcoming the shortcoming of the large rotating speed pulsation. At the same time, the torque command current composite control method is used to make further lowering rotating speed pulsation of the motor. It overcomes the problem of unsatability of the system during the procedure of regulating PI regulator parameter in traditional vector control system.

The invention discloses a direct driving wind power generation system based on a double SVPWM current mode convertor and a control method thereof. The system is characterized in that a permanent magnet synchro generator M1 is coaxially connected to a wind turbine M2; a stator alternated current signal output end of the permanent magnet synchro generator M1 is serially connected to a three-phase current fully controlled rectifier, a direct current inductor and a three-phase current synchronization inverter; and the fully controlled power switching tubes forming the three-phase current fully controlled rectifier and the three-phase current fully controlled inverter are fully controlled elements which respectively control with PWM11-PWM16 and PWM21-PWM26 space vector pulse width modulation signals SVPWM. The invention can simultaneously realize the variable speed control of the permanent magnet synchro generator and the synchronization control of the power grid.

A position detection and simulation platform includes software configurable logic and programmable inputs and outputs to support software configuration only changes for use with a variety of position feedback devices including synchros, resolvers, linear variable differential transformers, and rotary variable differential transformers. Power to the software configurable outputs is dynamically controlled so that the power supply voltage presented to the outputs satisfies a minimum threshold above the amplitude of the output signal. Dynamic control is based on at least one of a digital representation of a signal to be output, an analog version of the signal to be output, or the signal being output.

The invention provides a power system transmission line parameter synchronic measurement and recording device. An IEC61850 model is uniformly established on a server end according to IEC61850 standard and a fault wave-recording logic model and a transmission line parameter measurement logic module with the same hardware platform are set on the server end and the system configuration is realized according to IEC61850-6 and an independent used configuration tool is formed. The fault wave-recording and transmission line parameter measurements respectively model different logic devices according to IEC61850 standard, namely the data record is realized when the power system is in failure and the synchro measurement of the power system transmission line parameters is realized, thereby solving the problem that the data, parameter read by manpower out-of-step for many times are not accurate in power failure. The accuracy of the line parameter is increased. The power system transmission line parameter synchronic measurement and recording device can be widely used for various application fields such as line wave recording, main-change wave recording, set wave recording, and transmission line parameter synchro measurement.

The invention discloses a plate micro deep drawing forming method by virtue of pulsed laser and with a synchronous heating function and a special device for realizing the method. The plate is clamped between a micro deep drawing die and a clamping ring, the edge zone of the plate is heated by a circular laser beam which passes through the transparent die, meanwhile, the plate is irradiated by short pulsed laser with the energy density greater than the ignition threshold of material and is shocked by plasma shock wave produced by the interaction between the laser and the material, which leads to the plastic deforming of the board and obtains a deep drawn part tallying with the shape of the die. The method is of rapid forming, can form materials which are hard to be deformed at a normal temperature and can obviously improve the performances of material such as intensity, abrasion resistance, corrosion resistance and fatigue resistance; the method is especially suitable for the deep drawing forming of micro cylinder-shaped parts made from ultrathin materials or bulge forming of miniature spherical parts made from ultrathin materials, and can be used for manufacturing structural parts of a micro electromechanical system.

The present invention discloses an automatic feeder of an elevator guide way, including a bracket arranged at the front end of a production line of the elevator guide way. The both sides of the bracket are provided with a synchro transporting track and the bottom of the bracket is provided with a lifting device. A pair of telescopic splints is arranged at the both sides of the bracket and the outer side of the transporting track, which is arranged on a frame via a telescopic device. Two splints are connected respectively with two small oil cylinders by a piston rod and the small oil cylinders are fixed respectively on slide blocks arranged on the frame movably. The sliding blocks are connected respectively with the big oil cylinder by the piston rod, which is arranged fixedly on the frame. With the advantages of compact and reasonable structure, time and labor saving and high production efficiency, the present invention realizes the automatic feeding of the elevator guide way and can not cause the artificial damage on the surface of the guide way easily, which is helpful to the improvement the product quality.

The invention discloses a time synchronization method of a wireless sensor network, which belongs to the wireless sensor network communication technology field, and has the technical scheme summarized as follows: convergent nodes in a network broadcast downlink time synchro control packet including per-hop adjustment quantity, sending time-stamp and cumulative downlink delay to common nodes in the whole network in a flooding manner; the common nodes generate an uplink feedback packet according to certain probabilities and upwards send the uplink feedback packet to the convergent nodes according to the opposite direction of a downlink flooding path after receiving the packet and adjusting the time, and the packet includes the sending time-stamp, cumulative uplink delay, hop count from source nodes to the convergent nodes and the cumulative downlink delay; and the convergent nodes calculate new per-hop adjustment quantity according to the uplink feedback packet received by the convergent nodes, and a new time phasing turn starts. Compared with the prior art, the time synchronization method has the advantages of rapid convergence, high precision, strong expansibility and controllable resource consumption.

The invention relates to an evaluation system and method for the efficacy of synchro-neoadjuvant chemoradiotherapy before the rectal cancer surgery. The evaluation system comprises an image acquisition unit used for acquiring pathological biopsy slice scan images and neoadjuvant chemoradiotherapy treatment pre-MRI images of newly diagnosed locally advanced rectal cancer patients, and classifying the rectal cancer patients into a training set, a check set and a test set, to serve as input image data, an image labeling unit used for respectively labeling the pathological biopsy slice scan imagesand the MRI images of the training set, the check set and the test set, a convolutional neural network constructing unit used for constructing a first convolutional neural network model, and a convolutional neural network model training unit used for obtaining a second convolutional neural network model for evaluating the efficacy of synchro-neoadjuvant chemoradiotherapy before the rectal cancersurgery. The evaluation system for the efficacy of synchro-neoadjuvant chemoradiotherapy before the rectal cancer surgery has multiple advantages such as being high in accuracy, short in time consumption, long in working duration, objective and three-dimensional.

The invention extends N pole yoke, S pole yoke to two ends based on ordinary permanent magnetism synchro motor in tangential structure composed of stator including armature winding and armature core, and rotor including N pole yoke, S pole yoke and tangential magnetized permanent magnetism. Excitation winding and relevant annular excitation magnetic bridge are setup at place of stator corresponding to the extended part of the rotor. The structure said above is installed inside case made from magnetic material. Comparing the said ordinary synchro motor. The disclosed motor possesses advantages: small additional air gap and magnetic leakage, high efficiency of electric excitation, easy to be designed to reach optimal effect, preventing magnet steel from demagnetization risk. The invention is applicable to voltage adjustable generator and wide speed adjustable motor.

A composite clutch used to transmit an operational range of torques from a driving member to a driven member includes a friction clutch assembly and a dog clutch assembly. The friction clutch assembly includes a number of first friction clutch members coupled to the driving member and a number of second friction clutch members coupled to the driven member. The number of first friction clutch members and the number of second friction clutch members are selected to transmit torque across a first portion of the operational range of torques. An actuator assembly is operatively coupled to the friction clutch assembly and the dog clutch assembly. The composite clutch may be operated in friction clutch and dog modes to provide improved controllability in lower torque operation.

A mixed excitation permanent synchronous generator includes a shell, a stator core, a DC excitation winding, a rotor core, a shaft, a stator armature winding and a magnet, in which, the stator and the rotor cores are divided into two sections along the shaft, the segmented stator cores are connected with the shell and a ring DC excitation winding is set between them, the stator armature winding is a three-phase symmetric winding set in the core slots, a solid magnetic sleeve is set on the shaft between the segmented rotor cores, magnet blocks, magnets and ferromagnetic pole combined blocks are distributed in interleaving along the circles of the cores, the polarities of the adjacent magnets are opposite, the magnets and the ferromagnetic poles are arrayed axially in space along the two sections of the rotor cores, namely, the magnet-ferromagnetic pole-magnet and the polarities of the arrayed magnets in space are the same.

A constant angular speed and synchro-positioning mechanical stepless gear with low paired and high gearing ratio is designed as infinitely gear with equally regular characteristics on theories of constant angular speed and synchro-positioning movement and constant angular speed and iso-directional and reversal speed regulation so as to dissolve the vital problem of traditional impulsive stepless gear. No weakness in the whole driving chain has equal bearing capacity and high load and shock resistance. The spatial structural series is flexible and can have driving shaft in all the directions. Its advantages include reasonable structure, easy operation, accurate and stability, and economical efficiency. Its main gearing system works at low-paired transmission, with high loading ability and outputs torque at low speed.

A method for improving synchro precision of data transmission and system thereof are disclosed. The method includes the following steps: RRU receives a data frame and buffers; frame-parses to a wireless frame impulse signal and a carrier wave data signal of the data frame, setting the maximum time-lapse compensating time; a time-lapse is redeemed to the wireless frame impulse signal after parsing, according to the time of transmission and buffering, and the maximum time-lapse compensating time, and then sends to the communication port of RRU to transmit; a time-lapse is redeemed to the carrier wave data signal after parsing, according to the time of transmission and buffering, the maximum time-lapse compensating time, and transmission time of processing data, the carrier wave data is processed, and then is sent to the communication port of RRU to transmit; the wireless frame impulse signal and the carrier wave data signal are sent to the communication port of RRU simultaneously. The solution redeems the carry time-lapse for transmission data, so that the redeeming precision can reach multiple seconds, thus improving synchro precision of the data in an effective manner.

A photographic method for slow synchro-flash photography conducted by firing a flash at a slow shutter speed, comprising the steps of:

• • starting exposure with a focusing lens placed at an arbitrary position, and
  • moving the focusing lens to such a position as to focus on a main subject, just before the flash is fired.

The present invention discloses a double-computer thermo-backing up data synchronization method and device. Said method includes working machine compressing he treated synchronization data, and adding and transmitting relevant check code to backing up unit; backing up unit decompressing synchronization data from working machine with added check code, according to said synchronization data check code judging whether said synchronization data being complete, and if it is then saving said synchronization data. The present invention effectively reduces double-computer synchro data time, avoids double-computer synchronization data lose, increase systematical stability.