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257results about How to "Avoid adverse effects" patented technology

Parallel-connected torque control system and method for hydraulic hybrid power vehicles

The invention discloses parallel-connected torque control system and method for hydraulic hybrid power vehicles, belonging to the torque control systems and methods for multi-energy vehicle powertrains. The system comprises a management layer, a control layer and an execution layer. A management layer module is used for confirming the expected driving torque of a whole vehicle under the current situation by combining with the vehicle speed under the current state according the operation behaviors of a driver to an accelerator pedal. A control layer module is used for judging the operation mode of a hybrid power system according to the information acquired by a plurality of sensors and reasonably distributing the output torques of an engine and a hydraulic hybrid power system. An executionlayer module is used for independently controlling respective controlled objects according a control command of the control layer and feeding back the state variable of each part to the control layer. The invention has the advantages of reasonably distributing the output torques of the engine and a hydraulic pump motor, ensuring that the output torque of the engine is relatively concentrated on an optimal economical zone, and avoiding adverse influences of the frequent starting and stopping of the engine and the hydraulic pump motor to elements.
Owner:XUZHOU CONSTR MACHINERY INST XUZHOU CONSTR MACHINERY GRP

Lithium-ion battery silicon carbon negative electrode material and preparation method thereof

The invention provides a lithium-ion battery silicon carbon negative electrode material and a preparation method thereof. The preparation method of the lithium-ion battery silicon carbon negative electrode material comprises the following steps: S1, after mixing a silicon source and a solvent, wet grinding is performed under an oxidizing condition to form an oxide layer on the surface of the silicon source, wherein the mass of oxygen element accounts for 9.8% to 14% of the mass of the silicon source, and a slurry is obtained; S2, the slurry obtained in step S1 is compounded with a carbon material and dried to obtain a silicon carbon core material; S3, the silicon carbon core material obtained in step S2 is subjected to a fusion process treatment, and then mixed with a carbon coating material uniformly, and then calcined at a high temperature to be shaped; and S4, the material obtained in step S3 is crushed and sieved to obtain the silicon carbon negative electrode material. According to the invention, controlled oxidation of nano-silicon is realized during the wet grinding process, so that an oxide layer is formed on the surface of the silicon source; and the presence of the oxidelayer avoids side reactions between the silicon source and the electrolyte, and reduces the phenomenon of electrochemical agglomeration during the cyclic process at the same time; therefore, the cyclestability of the silicon carbon negative electrode material is significantly increased.
Owner:SHAANXI COAL & CHEM TECH INST

Light path structure of paper oil insulation space electric field measurement and adjusting method thereof

The invention discloses a light path structure of paper oil insulation space electric field measurement and an adjusting method thereof, belonging to the technical field of optical electric field measurement of high voltage insulation. The light path structure is composed of a helium-neon laser, an opto-isolator, a polarizer, a quarter-wave plate, a Kerr-cell, an analyzer and a photoelectric detector; auxiliary optical devices also comprise a micropore diaphragm, a polarized beam splitter and an optical power meter. The angle of the optical device in the light path structure is calibrated and the direction thereof is adjusted, the helium-neon laser is firstly fixed on an optical table, and then the micropore diaphragm is used for adjusting the height and direction of the helium-neon laser; then the angle of each optical device is calibrated and the direction thereof is adjusted according to the light path structure. The invention can effectively prevent the interference of the specular reflection beam of the optical device to the output intensity of the laser, improve the measurement accuracy, effectively guarantee the repeatability and reliability of each experiment, simplify the experiment process, besides, the operation is convenient.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

RFID labeling-based highway emergency warning message (EWM) data packet identification and reception method

The invention discloses a RFID labeling-based highway emergency warning message (EWM) data packet identification and reception method. The method comprises that 1, a RFID responder is installed at each inlet of a highway, wherein the responder comprises ID information of the highway and information related to mileage from the starting inlet of the highway to the responder and ID information data of parts of the same highway along different driving directions are different, 2, when a vehicle goes through an inlet of the road provided with the RFID responder, a reader installed in the vehicle reads highway ID information and mileage information in the responder, 3, a vehicle-mounted CPU effectively processes and records the acquired ID information and mileage information, accumulates the recorded mileage to the mileage computed at the intersection, and continuously updates the memory cell, and 4, through EWM information received by an OBU, according to preferential identification and comparison between the ID information and mileage information in the EWM data packet, the vehicle determines a relative position relationship with a vehicle in an accident and then determines if the EWM information needs to be read or transmitted.
Owner:蔚复来(浙江)科技股份有限公司

Method for preparing high-silicon steel ribbon through using electric brush composite plating method and continuous silicon steel ribbon preparing device

The invention discloses a method for preparing a high-silicon steel ribbon through using an electric brush composite plating method. The method is characterized in that a pure iron ribbon, a low-carbon steel ribbon or a low-silicon steel ribbon is used as a cathode plating piece ribbon, an electric brush plating anode plate is used as an anode, a layer of iron-silicon iron particle composite plating layer is coated on the cathode plating piece ribbon through using an electric brush composite silicon plating process, a composite plating layer steel ribbon adopting a steel-ribbon substrate as a core part is formed, then the uniform dispersion heat treatment is carried out, silicon-contained particles in the iron-silicon iron particle composite plating layer are uniformly dispersed into the steel ribbon substrate of the core part, and the high-silicon steel ribbon can be continuously prepared. The invention also discloses a continuous silicon steel ribbon preparing device which comprises an unreeling guide device, a conveying device, an electroplating device, a dispersion heat treatment device and a rolling device. The high-silicon plating layer is electrically plated on the cathode plating piece ribbon, then the high-silicon steel ribbon with an excellent magnetic conduction performance is obtained through using a heat treatment process, the simplicity in operation can be realized, characteristics such as high efficiency and continuity in preparation can be achieved, and the preparation cost also can be greatly reduced.
Owner:SHANGHAI UNIV

Cochlear implant

The invention provides a cochlear implant which comprises an external cochlear implant device and an internal cochlear implant device. The external cochlear implant device comprises a front microphone and a rear microphone. The front microphone and the rear microphone are arranged on the external cochlear implant device, are different in sound tube direction and are both used for receiving original voice signals, and two microphone voice noise-reduction processing systems are connected with the front microphone and the rear microphone respectively and carry out noise reduction processing on the two original voice signals to extract pure voice signals. According to the cochlear implant, a dual-stage noise reduction mode is adopted, the sound tube directions of the two microphones are ingeniously designed, the power spectral subtraction theory is introduced in cooperation, noise-contained voice and noise are estimated, and the algorithm complexity is greatly lowered compared with a traditional spectral subtraction algorithm; in addition, the defect that noise of noise-contained voice signals is inaccurately estimated in the traditional spectral subtraction algorithm is overcome, and adverse effects of music noise caused by the traditional spectral subtraction noise reduction algorithm on use of the cochlear implant are also avoided.
Owner:SHANGHAI LISTENT MEDICAL TECH CO LTD

Anti-blocking plane gate

The invention provides an anti-blocking plane gate. The anti-blocking plane gate effectively solves the problem that an existing gate does not have a filtering effect, is easy to block and cleans debris difficultly; the anti-blocking plane gate comprises a U-shaped frame body, wherein a supporting plate is fixed above the frame body, the frame body is internally slidably connected with a baffle located at the front side of the frame body and capable of moving vertically, the frame body is internally provided with a filter plate located behind the baffle and capable of sliding in the frame bodyfront and rear, the rear side of the frame body is fixedly provided with a supporting frame placed left and right, the rear end face of the filter plate is fixedly connected with the supporting framethrough a plurality of first springs, the bottom of the frame body is provided with a groove in the left-right direction and located below the filter plate, the bottom of the groove is connected witha scraper plate capable moving vertically through a plurality of second springs, and the left and right sides of the frame body are provided with cleaning grooves respectively. The anti-blocking plane gate has the advantages that the filter plate is arranged in the frame body to filter out the debris in water to prevent the debris from adversely affecting crops; the scraper plate capable moving vertically is arranged to scrape the debris adhering to the filter plate, thereby preventing the filter plate from being blocked, providing convenience for cleaning the debris and improving the water filtration efficiency.
Owner:HENAN UNIVERSE VALVE CO LTD
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