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38results about How to "Improve cold start speed" patented technology
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Heat pump integrated fuel cell automobile heat management system with waste heat utilization function
ActiveCN111422103AImprove efficiencyImprove the shortcomings of low performanceAir-treating devicesVehicle heating/cooling devicesElectrical batteryProcess engineering
The invention discloses a heat pump integrated fuel cell automobile heat management system with a waste heat utilization function. The heat pump integrated fuel cell automobile heat management systemcomprises a heat pump circulation loop, a motor circulation loop, a fuel cell circulation loop and a battery pack circulation loop. The heat pump circulation loop is connected with other circulation loops through a plurality of plate heat exchangers to form the integrated heat management system, is connected with the fuel cell circulation loop through a first plate heat exchanger, is connected with the motor circulation loop through a second plate heat exchanger and is connected with the battery pack circulation loop through a third plate heat exchanger. Through the heat pump integrated heat management system, the heat pump cycle can utilize the environment or other heat sources to assist in heating the fuel cell to realize low-temperature cold start; a multi-heat-source heat pump air conditioner is composed of a fuel cell and motor circulating waste heat, the defect that the energy efficiency value of a heat pump is low at low temperature is overcome, and frosting of an external heatexchanger can be avoided.
Owner:JILIN UNIV
Navigation satellite signal receiver and cold start method thereof
The invention discloses a navigation satellite signal receiver and a cold start method thereof. The cold start method comprises the following steps: receiving navigation message data of a plurality of satellites, performing bit synchronization on the navigation message data, and storing the navigation message data subjected to bit synchronization; performing frame synchronization on the navigation message data, and after finishing frame synchronization, obtaining TOW and subframe number of a current subframe; determining a subframe number of a previous subframe according to the current subframe number, if the subframe number of the previous subframe is 1, 2 or 3, performing backward research on navigation message data of the previous subframe to obtain partial ephemeris data, and storing the partial ephemeris data into an ephemeris storage region; continuously receiving the navigation message data, storing ephemeris data in the navigation message data into the ephemeris storage region, after obtaining complete ephemeris data of a first subframe, a second subframe and a third subframe, decoding the ephemeris data, and obtaining all ephemeris parameters; after obtaining ephemeris parameters of a preset number of satellites, starting to perform positioning. The cold start method realizes quick cold start of the navigation satellite signal receiver.
Owner:GUANGDONG UNIV OF TECH
Fuel cell thermal management system with phase change heat storage and preheating functions
ActiveCN111463453AImprove cold start speedReduce consumptionFuel cell heat exchangeMotive system fuel cellsFuel cellsEngineering
The invention discloses a fuel cell thermal management system with phase change heat storage and preheating functions. The fuel cell thermal management system comprises a heat pipe heat exchange part,a liquid path preheating loop, a liquid path heating loop, a gas path preheating loop and a gas path heating loop, wherein the heat pipe heat exchange part is embedded into a heat pipe in a polar plate to exchange heat with an external liquid path, a first phase-change heat exchanger is connected with a liquid path, a second phase-change heat exchanger is simultaneously connected with a gas pathand the liquid path, the liquid path preheating loop heats the liquid path through the first phase change heat exchanger, the gas path preheating loop heats the gas path through the second phase change heat exchanger to jointly preheat a fuel cell, waste heat of a fuel cell in the liquid path heating loop accumulates heat for the phase change heat exchanger or heats a lithium battery and a passenger compartment, the gas path heating loop indirectly heats inlet gas through cooling liquid. The fuel cell thermal management system is advantaged in that the waste heat of the fuel cell can be storedin the phase change heat exchanger and used for preheating the fuel cell through a liquid path and a gas path or for heat preservation of the fuel cell, in addition, the waste heat of the fuel cell can heat intake air, a lithium battery or a passenger compartment, and the energy utilization rate is increased.
Owner:JILIN UNIV
Fuel cell galvanic pile hydrogen circulation device and method
The invention relates to the technical field of fuel cells, in particular to a fuel cell galvanic pile hydrogen circulation device and a method. An anode flow channel inlet and an anode flow channel outlet are formed in a galvanic pile, an input end of a humidifying water collecting device and the anode flow channel outlet are communicated through a hydrogen circulation pipeline, an output end ofthe humidifying water collecting device is communicated with an input end of a hydrogen circulation pump through the hydrogen circulation pipeline, and an output end of the hydrogen circulation pump and the anode flow channel inlet are communicated through the hydrogen circulation pipeline. The device can adjust the humidity according to the working condition of the galvanic pile, do not let waterblock the flow channels when the power changes, and do not let the inlets of the galvanic pile dry at the high power to damage electrodes and cause the power to drop, and a hydrogen circulation system can heat intake air to speed up the cold start speed during starting at a low temperature, and the problems that uneven distribution of fuel cell water causes the galvanic pile to be partly dried out and even causes the galvanic pile to fail are solved.
Owner:NANTONG BAIYING ENERGY
Recombining method and device for transplantable executive file
ActiveCN103631971AReduce consumptionReduce interruptionsSpecific program execution arrangementsSpecial data processing applicationsApplication softwareEmbedded system
The invention discloses a recombining method and device for a transplantable executive file. The method comprises the following steps: reading a functional logic sequence in an original transplantable executive file; obtaining an invoking record of the functional logic sequence; generating a ranking position by adopting the invoking record; and recombining the functional logic sequence according to the ranking position to obtain the target transplantable executive file. According to the method and the device, the invoking record of the functional logic position of the transplantable executive file is obtained to generate the ranking position, and then the functional logic position is recombined according to the ranking position, so that a CPU (Central Processing Unit) can directly read the functional logic position in memory to avoid the frequent reading of a disk by the CPU, reduce the consumption of system resources and reduce the generation of missing page interruption, so that the cold start speed of application programs is increased.
Owner:BEIJING QIHOO TECH CO LTD
Fluctuation type power input water electrolysis hydrogen production method and device
The invention provides a fluctuation type power input water electrolysis hydrogen production method and device. The method comprises the step of: distributing fluctuation type input power into electrolysis power and heat storage power, wherein the electrolysis power is used for providing electric energy for hydrogen production by electrolyzing water; and the heat storage power is converted into heat energy for providing starting energy for hydrogen production by electrolyzing water, so that the cold starting speed of hydrogen production by electrolyzing water is increased. According to the method, fluctuation type power is distributed into heat storage power, and the heat storage power is converted into heat energy for providing starting energy for hydrogen production by electrolyzing water, so that the cold starting speed of water electrolysis hydrogen production can be remarkably increased, the system cannot be stopped, frequent start and stop of the system caused by fluctuation typepower input are effectively avoided, the concentration change of hydrogen and oxygen cannot be affected, and the yield and quality of hydrogen and continuous and safe production are guaranteed.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
Device for starting a proton exchange membrane fuel cell at low temperature
ActiveCN108832158AIncrease profitImprove utilization efficiencyFuel cell heat exchangeReactant parameters controlStart up timeProton exchange membrane fuel cell
The invention relates to a device for starting a proton exchange membrane fuel cell at a temperature below zero degree, wherein a mixed gas is catalytically preheated at an anode, and tail gas of theanode is introduced into a cathode, so that an unreacted mixed gas is catalytically reacted at the cathode, and the effect of simultaneous heating of the cathode and the anode is realized. The invention is improved on the traditional catalytic cold start device, the cathode and the anode can simultaneously generate catalytic reaction and provide heat to the battery, which can realize low temperature start-up in the temperature range equal to -45 DEG C or below, fuel is fully utilized, the battery start-up power consumption is reduced and the low temperature start-up time is greatly reduced.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Advertisement putting account information learning method and device and computer equipment
ActiveCN113256346AImprove cold start speedGood advertising effectAdvertisementsInformaticsIndustrial engineering
The invention relates to an advertisement putting account information learning method and a device, computer equipment and a storage medium. The method comprises the following steps: determining at least one historical putting account allocated to a newly added advertisement putting account in response to a historical putting account selection instruction of a user for the newly added advertisement putting account, wherein the historical putting account is an advertisement putting account historically created by the user, and the advertisement putting effect of the historical putting account meets a preset condition; after entering an account learning state, screening advertisement putting information of the at least one historical putting account to obtain screened advertisement putting information; and performing initialization setting on the advertisement putting information of the newly added advertisement putting account based on the screened advertisement putting information. By adopting the method, the advertisement putting efficiency can be improved.
Owner:广州市丰申网络科技有限公司
Nitrogen oxide sensor
ActiveCN113075277AImprove heating efficiencyImprove cold start speedMaterial analysis by electric/magnetic meansNitrogen oxidesHeating efficiency
The invention discloses a nitrogen oxide sensor. The nitrogen oxide sensor comprises a first solid electrolyte layer, a second solid electrolyte layer and a third solid electrolyte layer, and a common electrode is arranged on the side, facing the third solid electrolyte layer, of the second solid electrolyte layer. A main pump electrode, an auxiliary pump electrode and a measuring pump electrode are arranged on the side, facing the first solid electrolyte layer, of the second solid electrolyte layer, a reference electrode is arranged on the side, deviating from the second solid electrolyte layer, of the first solid electrolyte layer, and a heater is arranged on the side, facing the second solid electrolyte layer, of the third solid electrolyte layer. According to the nitrogen oxide sensor, the distances between the main pump electrode, the auxiliary pump electrode, the measuring pump electrode, the common outer electrode and the heater are shortened, the heating efficiency of the nitrogen oxide sensor is improved, the power consumption in a working state is reduced, and meanwhile, the service life of the nitrogen oxide sensor can be prolonged.
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
Hydrogen production and storage system and multi-mode circulating hydrogen production method
ActiveCN113846338AAvoid variable conditionsAvoid the problem of frequent start and stopCellsEnergy inputOrganic Rankine cycleHydrogen storage system
The invention discloses a hydrogen production and storage system, which comprises an electrolytic bath and a hydrogen storage device, and further comprises a heat storage power generation device, an oxygen storage device and a water storage device. The invention further discloses a multi-mode circulating hydrogen production method, which adopts the hydrogen production and storage system. According to the invention, a heat storage power generation device is introduced into a hydrogen production system and cooperates with renewable energy power generation to electrolyze water to produce hydrogen in an electrolytic cell, so that the problems of variable working conditions and frequent start and stop caused by the use of renewable energy in the hydrogen production process are avoided, and the adaptability of the PEM electrolytic hydrogen production system to the fluctuation characteristic of new energy is improved; according to the multi-mode circulating hydrogen production method provided by the invention, a method of coupling organic Rankine cycle power generation with renewable energy power generation is adopted, so that the power shortage of the input end caused by fluctuating renewable energy is filled up, and the productivity of a hydrogen production system is ensured; and the method and the system provided by the invention are simple and easy to implement, energy generated in the whole hydrogen production and storage system can be fully utilized, the economical efficiency of the whole system is improved, and the energy consumption is reduced.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
Container creation method and system for function instance
PendingCN114489931ASolve the time-consuming problem of allocationImprove cold start speedTransmissionSoftware simulation/interpretation/emulationSoftware engineeringOperating system
The invention discloses a function instance container creation method and system, and the method comprises the steps: a function instance management module of a cloud management system obtains a logic switch and an available IP address from an IP address management module according to a virtual private cloud associated with a function instance in node equipment; the IP address management module selects an available IP address from a cache and feeds back the selected IP address to the function instance management module; the function instance management module writes an annotation for a container based on the received IP address, and marks a logic switch and the IP address associated with the container to generate definition information of the container; and the cloud management system initiates a request for creating the container according to the definition information of the container so as to complete a container creation task of the function instance. According to the technical scheme provided by the invention, the function instance can access the VPC resource.
Owner:CHINA TELECOM CLOUD TECH CO LTD
Nitrogen oxide sensor
ActiveCN113075278AGuaranteed symmetric distributionReduce distanceMaterial analysis by electric/magnetic meansNitrogen oxidesReference electrode
The invention discloses a nitrogen oxide sensor which comprises a first structural layer with the same thickness as a second structural layer, and the first structural layer and the second structural layer are symmetrically arranged relative to a solid electrolyte layer group; a common electrode is arranged on the side, facing the first structural layer, of the first solid electrolyte layer, and a first main pump electrode and a first auxiliary pump electrode are arranged on the side, facing the second solid electrolyte layer, of the first solid electrolyte layer. A second main pump electrode, a second auxiliary pump electrode and a measuring pump electrode are arranged on the side, facing the first solid electrolyte layer, of the second solid electrolyte layer, a reference electrode is arranged on the side, facing the third solid electrolyte layer, of the second solid electrolyte layer, and a heater is arranged on the side, facing the second structural layer, of the third solid electrolyte layer. According to the nitrogen oxide sensor, the power consumption of the nitrogen oxide sensor in a working state is reduced, the service life of the nitrogen oxide sensor can be prolonged, and meanwhile, the firing qualification rate is improved.
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
Variable frequency oxygen sensor
ActiveCN113203784AReduced cold start speedImprove cold start speedMaterial analysis by electric/magnetic meansOxygen sensorElectrolyte
The invention discloses a variable frequency oxygen sensor. A first solid electrolyte layer and a cavity layer define a first closed cavity, a second solid electrolyte layer and the cavity layer define a second closed cavity, the cavity layer is provided with a closed inner cavity located between the first closed cavity and the second closed cavity, the closed inner cavity is isolated from a to-be-detected atmosphere through the first solid electrolyte layer, the cavity layer and the second solid electrolyte layer, an outer electrode is arranged on the side, which faces a sensitive electrode pin layer, of the first solid electrolyte layer, a first common electrode is arranged on the side, which faces the cavity layer, of the first solid electrolyte layer, the first common electrode is accommodated in the first closed cavity, a second common electrode is arranged on the side, which faces the cavity layer, of the second solid electrolyte layer, an inner electrode is arranged on the side, which faces a blocking layer, of the second solid electrolyte layer, and the second common electrode is accommodated in the second closed cavity. According to the variable-frequency oxygen sensor disclosed by the invention, the cold start time is shortened, and the condition that the closed inner cavity is cracked due to high and low temperature circulation can be avoided.
Owner:安徽中科国瓷新型元器件有限公司
Thermal management system and control method for fuel cell vehicle
ActiveCN109291830BReduce dependencePrevent cold start failureAir-treating devicesFuel cell heat exchangeHydrogen fuel cellThermal management system
The invention discloses a thermal management system for a fuel cell vehicle, comprising a hydrogen fuel cell stack, a hydrogen catalytic combustion reactor, an electric heater, a frequency conversion fan, a water supply tank, a frequency conversion water pump, a deionization device, a particle filter, and a bypass valve , temperature sensor and controller. The invention discloses a control method for a thermal management system of a fuel cell vehicle.
Owner:JILIN UNIV
Conical double cell wide-band oxygen sensor and manufacture method thereof
ActiveCN103837589AMiniaturizationEasy to moveMaterial electrochemical variablesOxygen sensorConcentration cell
The invention relates to the technical field of oxygen sensors, and particularly relates to a conical double cell wide-band oxygen sensor and a manufacture method thereof. The sensor comprises a conical zirconium oxide tube and a conical heating rod, wherein a reference air electrode is arranged on the inner surface of the conical zirconium oxide tube, a measuring electrode, a mixing cavity and a diffusion layer are sequentially arranged on the outer surface of the conical zirconium oxide tube, the reference air electrode arranged on the inner surface of the conical zirconium oxide tube and the measuring electrode arranged on the outer surface of the conical zirconium oxide tube form a concentration cell unit, on the basis, a compact zirconium oxide coating is arranged so as to seal the interior, and a diffusion hole is reserved, a pump cell external electrode is arranged on the outer surface of the compact zirconium oxide coating, the pump cell external electrode and the measuring electrode wrapped in the compact zirconium oxide coating form a pump cell unit, and a porous external electrode protective layer is arranged on the outer surface of the compact zirconium oxide coating. According to The conical double cell wide-band oxygen sensor, the heating efficiency of sensors can be effectively improved, and the volume of like products can be remarkably reduced.
Owner:CHANGZHOU LAMBDA ELECTRONICS
Applet cold start method and device, computer equipment and storage medium
PendingCN111399938AImprove cold start speedProgram loading/initiatingComputer equipmentOperating system
The invention relates to an applet cold start method and device, computer equipment and a storage medium. The method comprises the steps: obtaining a to-be-started target applet corresponding to trigger information when the trigger information is detected; obtaining execution information of each to-be-loaded step of the target applet, wherein the execution information is used for representing a loading mode of each to-be-loaded step, and the loading mode comprises a parallel loading mode; and executing each to-be-loaded step according to the execution information so as to control the target applet to perform cold start. By adopting the method, the cold start speed of the applet can be increased.
Owner:TENCENT TECH (SHENZHEN) CO LTD
A heat pump integrated fuel cell vehicle thermal management system with waste heat utilization
ActiveCN111422103BReduce consumptionImprove cold start speedAir-treating devicesVehicle heating/cooling devicesFuel cellsPlate heat exchanger
The invention discloses a heat pump integrated fuel cell vehicle thermal management system with waste heat utilization, comprising a heat pump circulation loop, a motor circulation loop, a fuel cell circulation loop, and a battery pack circulation loop; Other circulation loops are connected to form an integrated thermal management system. The first plate heat exchanger is connected to the fuel cell circulation loop, the second plate heat exchanger is connected to the motor circulation loop, and the third plate heat exchanger is connected to the battery pack circulation loop. Connected; through the heat pump integrated thermal management system, the heat pump cycle can use the environment or other heat sources to assist heating the fuel cell to achieve low temperature cold start; the use of the fuel cell and motor circulating waste heat to form a multi-heat source heat pump air conditioner to improve the heat pump at low temperature The shortcomings of low energy efficiency value, And can avoid the outside heat exchanger frost.
Owner:JILIN UNIV
NOx sensor
ActiveCN113075277BImprove heating efficiencyImprove cold start speedMaterial analysis by electric/magnetic meansNitrogen oxidesEngineering
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
Method and device for controlling cold start of fuel cell, computer readable storage medium and program product
PendingCN114725441AFast and easy to control cold start processMake full use of internal thermal powerFuel cellsThermodynamicsFuel cells
The invention relates to a method (100) for controlling a cold start process of a fuel cell, comprising at least the following steps: i) in a first phase, operating the fuel cell at an initial current density that is constant over time; and ii) operating the fuel cell at a current density that increases over time in a second phase immediately following the first phase. The invention also relates to an apparatus for controlling a cold start process of a fuel cell as well as a corresponding computer readable storage medium and a computer program product. According to the invention, the fuel cell cold start method which is short in start time, easy to control and free of additional system complexity and energy consumption is realized.
Owner:ROBERT BOSCH GMBH
Implementation method and device for browser cold start
ActiveCN104199684BReduce seek operationsShorten the timeMemory adressing/allocation/relocationProgram loading/initiatingData fileCold start
The embodiment of the invention discloses a browser cold start method and device. The method includes: reading the data files sequentially from the storage position of the data files of the browser in the disk according to the acquired starting instructions of the browser, and storing the read data files in the memory; Find and read the corresponding data file from the internal memory according to the requirement for the data file during the startup process of the server. The technical solution provided by this embodiment can reduce the seek operation of randomly reading the disk, avoid page faults, and optimize the interface display effect when the browser is cold started.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
A method for starting a proton exchange membrane fuel cell at low temperature
ActiveCN108711630BEfficient use ofIncrease profitFuel cell heat exchangeProton exchange membrane fuel cellMixed gas
The invention relates to a method for starting a proton exchange membrane fuel cell under a low-temperature state. A mixed gas is introduced to a positive electrode for catalytic pre-heating, a tail gas of the positive electrode is introduced to a negative electrode, so that the mixed gas which does not react generates catalytic reaction in the negative electrode, and the effect of simultaneouslyrising temperatures of the negative electrode and the positive electrode is achieved. The method is improved on the basis of a traditional catalytic cold-starting method, the negative electrode and the positive electrode can simultaneously generate catalytic reaction, heat is provided for the cell, low-temperature starting at -45 DEG C even a lower temperature range can be achieved, fuel can be fully utilized, the starting power consumption of the cell is reduced, and the low-temperature starting time is greatly reduced.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Application program cold start method, mobile terminal and computer storage medium
PendingCN112612543AReduce cold start timeImprove cold start speedHardware monitoringBootstrappingSoftware engineeringApplication procedure
The embodiment of the invention discloses an application program cold start method, a mobile terminal and a computer storage medium. The method comprises the steps: monitoring cold start operation of a user on a target application program in real time; when a cold start instruction for the target application program is detected, monitoring a UI thread of the target application program; judging whether an action of calling thread dormancy exists in the UI thread or not; if yes, before the UI thread executes the action of thread dormancy, intercepting and obtaining parameters transmitted when the target application program calls the action of thread dormancy; after the parameters are modified according to a preset rule, executing a thread dormancy action according to the modified parameters; and after the thread dormancy action is executed, starting the target application program in a cold mode. According to the method, the cold start process of the application program is accelerated, the user waiting time is shortened, and the user experience is improved.
Owner:NUBIA TECHNOLOGY CO LTD
Container starting method and device, computer equipment and storage medium
PendingCN114860344AImprove cold start speedProgram loading/initiatingSoftware deploymentComputer hardwareEngineering
The invention relates to a container starting method and device, computer equipment and a storage medium. The container starting method comprises the following steps: in response to binding of a container to a working node, monitoring whether a mirror image corresponding to the container exists on the working node or not; if it is monitored that no mirror image exists on the working node, a daemon process is started, and a mirror image pulling task is issued to a container running assembly through the daemon process; wherein the mirror image pulling task is used for indicating the container running component to pull a mirror image from a far-end mirror image warehouse to a working node; and in response to issuing of the mirror image pulling task, creating a target directory on the working node, and mounting the mirror images in the remote mirror image warehouse to the target directory to indicate the container to read the mirror images from the remote mirror image warehouse based on the target directory so as to complete container starting. The problem of long consumed time of cold start can be solved.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA
Combined power system and commercial vehicle
ActiveCN113669155AReduce structural complexitySimple structureLiquid coolingReactant parameters controlFuel cellsDieseling
The invention relates to the technical field of automobiles, in particular to a combined power system and a commercial vehicle. The combined power system comprises a diesel engine system, a fuel cell system, a gas inlet system, an exhaust system and a heat exchange system. The gas inlet system comprises a gas inlet assembly and a first control valve, the air inlet assembly communicates with the atmosphere and a first port of a first control valve, a second port of the first control valve communicates with the diesel engine system, and a third port of the first control valve communicates with the fuel cell system. The exhaust system comprises an exhaust assembly and a second control valve, and the exhaust assembly communicates with a first exhaust port of the second control valve and the atmosphere. The structural complexity of the combined power system can be reduced, coordination control of the power system is facilitated, the control difficulty is reduced, the fuel cell can be prevented from being started under the working condition of low temperature, and the service life of a fuel cell is prolonged.
Owner:FAW JIEFANG AUTOMOTIVE CO
Android-based application cold start optimization method and system
ActiveCN106445617BImprove cold start speedQuick responseProgram loading/initiatingSoftware engineeringApplication procedure
The invention discloses an Android-based application program cold-start optimization method and an Android-based application program cold-start optimization system. The method includes starting an application program, starting a thread pool task, initializing all data in the application program starting process through paralleling of multiple sub-threads, and sending the initialized data to a register interface of the application program; analyzing the received initialized data by the register interface, and refreshing the register interface timely. By the Android-based application program cold-start optimization method and the Android-based application program cold-start optimization system, cold start speed of the application program can be increased, so that response speed of the application program is increased, and users' experience is improved.
Owner:WUHAN DOUYU NETWORK TECH CO LTD
A navigation satellite signal receiver and its cold start method
InactiveCN104777490BFast cold startImprove cold start speedSatellite radio beaconingEphemerisMarine navigation
A navigation satellite signal receiver and a cold start method therefor. The method comprises: receiving navigation message data of a plurality of satellites, performing bit synchronisation on the navigation message data, and storing the bit-synchronised navigation message data; performing frame synchronisation on the navigation message data, and after finishing frame synchronisation, acquiring a TOW and sub-frame number of a current sub-frame; determining a sub-frame number of a previous sub-frame according to the current sub-frame number, if the sub-frame number of the previous sub-frame is 1, 2 or 3, reversely searching navigation message data of the previous sub-frame to obtain partial ephemeris data, and storing same into an ephemeris storage area; continuously receiving the navigation message data, storing ephemeris data in the navigation message data into the ephemeris storage area, after obtaining complete ephemeris data of a first sub-frame, a second sub-frame and a third sub-frame, decoding the ephemeris data, and acquiring all ephemeris parameters; and after acquiring ephemeris parameters of a pre-set number of satellites, starting to perform positioning. The method achieves quick cold start of a navigation satellite signal receiver.
Owner:GUANGDONG UNIV OF TECH
A device for starting a proton exchange membrane fuel cell at low temperature
ActiveCN108832158BIncrease profitImprove cold start speedFuel cell heat exchangeReactant parameters controlElectrical batteryProton exchange membrane fuel cell
The invention relates to a device for starting a proton exchange membrane fuel cell at a temperature below zero degree, wherein a mixed gas is catalytically preheated at an anode, and tail gas of theanode is introduced into a cathode, so that an unreacted mixed gas is catalytically reacted at the cathode, and the effect of simultaneous heating of the cathode and the anode is realized. The invention is improved on the traditional catalytic cold start device, the cathode and the anode can simultaneously generate catalytic reaction and provide heat to the battery, which can realize low temperature start-up in the temperature range equal to -45 DEG C or below, fuel is fully utilized, the battery start-up power consumption is reduced and the low temperature start-up time is greatly reduced.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Conical dual-cell wide-area oxygen sensor and method for making the same
ActiveCN103837589BMiniaturizationEasy to moveMaterial electrochemical variablesWide areaConcentration cell
Owner:CHANGZHOU LAMBDA ELECTRONICS
Lithium battery pack thermal management system
ActiveCN108777336BImprove cold start problemImprove temperature uniformitySecondary cellsThermodynamicsHeat management
Owner:东莞市赛亿欧电子科技有限公司
Rapid low-temperature cold start fuel cell
ActiveCN114335631AReduce energy consumptionReduce in quantityFuel cell heat exchangeFinal product manufactureFuel cellsAir pump
The invention provides a rapid low-temperature cold start fuel cell, and belongs to the field of fuel cells. The fuel cell with the rapid low-temperature cold start function is a cold start system with a heat preservation and heat storage system, when the fuel cell enters cold start, air passes through a heat preservation air pump, a filter and a flow meter, is heated by a heating wire and enters a fuel cell stack for cold start, and hot air passes through a three-way valve and is introduced into the heat preservation air pump again; and the heat of the previous cycle is stored for preheating the fuel cell stack in the next cycle, so that the energy consumption of the storage battery can be reduced, and the fuel cell stack can be preheated faster and more stably. The surface of the gas diffusion layer of the fuel cell with the rapid low-temperature cold start is also provided with a micro-bulge structure, and the porosity of the gas diffusion layer is in a gradient distribution relationship from small to large in the direction from the bipolar plate to the membrane electrode, so that the effect of enhancing heat transfer from a runner to one side of the membrane electrode can be achieved; therefore, the melting speed of ice in the stack is accelerated, and the low-temperature cold start speed is accelerated.
Owner:JIANGSU UNIV +1
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