Method for improving processing speed and quality of electric spark pinholes

The invention relates to a method for improving the processing speed and the quality of electric spark pinholes, in particular to a technical scheme for improving the processing speed and the qualityof the electric spark pinholes by using a water dispersing agent working solution, belonging to the technical field of special processing. The method for improving the processing speed and the quality of electric spark pinhole by using the water dispersing agent working solution is characterized by comprising the steps of preparing the water dispersing agent working solution, processing the electric spark pinholes by using the prepared water dispersing agent working solution and cleaning a pump of working solution to complete the process. The method has advantages of only adding dispersing agents to the original running water working solution without making any alteration on an electric spark machine tool and improving the dispersity of the working solution by using the dispersion effectof the ...

Sterile water and hypochlorous acid water preparation system and preparation method

The invention provides a sterile water and hypochlorous acid water preparation system and method, and the system comprises pure water front-end treatment equipment which is used for filtering a water source and then dividing the filtered water source into a first output path and a second output path; the pure water sterilization device is communicated with the first path of output and is used for outputting sterile water; and the hypochlorous acid water production device is communicated with the second path of output and is used for outputting hypochlorous acid water. A reverse osmosis technology, an ultraviolet sterilization technology and a sterilization substance sterilization technology are utilized to reduce the number of bacterial colonies in effluent of equipment to 0 CFU/100ml, and meanwhile, a pipeline system adopts circulating sterilization, so that sterile water supply is greatly ensured; the hypochlorous acid water is produced while the sterile water is prepared, and the use ...

Method for realizing software development about TBOX based on AUTOSAR architecture and software architecture

The invention provides a software development method for realizing TBOX based on an AUTOSAR architecture and a software architecture. The method comprises the following steps: S1, setting a basic software architecture of the TBOX into an application layer, a runtime environment and a basic software layer according to an AUTOSAR standard architecture specification; s2, defining a data structure type and a module file structure required by the TBOX in an application layer to form a runnable entity, namely a functional module, of the TBOX, and designing a fault-tolerant processing mechanism; s3, setting a standard interface of the AUTOSAR in the runtime environment layer to realize communication between the application layer and the basic software layer, and communication between each functional module in the application layer and the interior of the basic software layer to serve as the runtime environment layer; s4, layering and packaging the ECU into a service layer, an ECU abstraction layer ...

A compound power system for an electrical vehicle

Abstract The invention discloses a compound power system for electric vehicle, comprising a power battery, a super capacitor, the first DC/DC converter, a engine generator set, an AC/DC inverter, a protective resistor, the second DC/DC converter, a bus bar for the power system, a controller for the compound power system. The bus bar for the power system carries a load; the engine generator set is connected to the bus bar for the power system via the AC/DC inverter; the power battery is directly connected to the bus bar for the power system; the super capacitor is connected to the bus bar for the power system via the first DC/DC converter; the protective resistor is connected to the bus bar for the power system via the second DC/DC converter; the controller for the compound power system outputs actuation signals to the AC/DC inverter, the first DC/DC converter, and the second DC/DC converter, so as to control the engine generator set, the super capacitor and the protective resistor. The ...

Electromagnetic inductive type non-contact charging system and aligning method thereof

The invention discloses an electromagnetic inductive type non-contact charging system and an aligning method thereof. The system comprises a ground electric energy emitting device and a vehicle-mounted electric energy receiving device, wherein the vehicle-mounted electric energy receiving device comprises a display module, a vehicle-mounted part controller, a vehicle-mounted wireless communication module, a vehicle-mounted electric energy receiving module, a battery and a vehicle-mounted receiving coil, and is arranged on a vehicle, the vehicle-mounted receiving coil is arranged below a chassis, the ground electric energy emitting device comprises a ground emitting coil, a ground electric energy emitting circuit, a driving module, a ground part controller and a ground wireless communication module, and is arranged on the ground, and the ground emitting coil is arranged on the top of the ground electric energy emitting device. On the basis of the traditional non-contact charging, a positioning ...

A secure communication method of wireless charging of electric vehicle

Abstract The invention relates to a secure communication method of wireless charging of an electric vehicle, applied to secure communication of a battery management system of an electric vehicle and a vehicle-mounted wireless charging device. According to the secure communication method, a hard wire is connected between the battery management system of an electric vehicle and the vehicle-mounted wireless charging device, during data 5 information transmission, a data sending node controls to pull down a hard wire signal at first, a data receiving node starts receiving data information after detecting the pulled-down hard wire signal, after the data information transmission, the data sending node controls to pull up the hard wire signal, and the data receiving node confirms the received data information to be valid after detecting the pulled-up hard wire signal. According to the secure communication method provided by the present invention, the identity authentication 10 of communication ...

Streamline operation construction method of precast small box girders for highway in assembling mode

The invention discloses a streamline operation construction method of precast small box girders for highways in an assembling mode. The method comprises the following steps: (1) processing and molding a bottom web steel reinforcement framework on a moulding bed; (2) hoisting the bottom web steel reinforcement framework on a girder fabricating pedestal, and mounting an inner mould and a side mould; (3) processing and molding a top web steel reinforcement framework, hoisting the top web steel reinforcement framework right above the bottom web steel reinforcement framework, binding and welding the steel reinforcement frameworks to form an integrated steel reinforcement framework, mounting an end mould, and inserting an inner liner tube in a corrugated pipe; (4) pouring concrete; (5) when the concrete strength is greater than or equal to 2.5Mpa, removing the moulds and scabbling joint ends; (6) curing the concrete; (7) cleaning a pore passage of the corrugated pipe, mounting prestressed tendons ...

Rapid failure detection method of parallel single batteries in a serial-parallel battery pack

Abstract The invention relates to a rapid failure detection method of parallel single batteries in a serial-parallel battery pack, used for the failure detection of the parallel single batteries. According to the detection method, solenoid coils are unidirectionally winded on outer surfaces of the parallel single batteries, the size and the direction of the current in the single batteries are indirectly sampled by using the Faraday law of electromagnetic induction. and then whether the single batteries are invalid is judged based on the sampled size information and the direction information of the current. The detection method is simple, the cost budgeting is lower and the practicability is higher, the size and the direction of the current of each working single battery in the parallel battery pack are monitored, therefore the rapid detection of each single battery in the parallel battery pack is effectively realized, the accuracy and the reliability of the detection are improved, meanwhile ...

A compound power system for an electrical vehicle

Abstract The invention discloses a compound power system for electric vehicle, comprising a power battery, a super capacitor, the first DC/DC converter, a engine generator set, an AC/DC inverter, a protective resistor, the second DC/DC converter, a bus bar for the power system, a controller for the compound power system. The bus bar for the power system carries a load; the engine generator set is connected to the bus bar for the power system via the AC/DC inverter; the power battery is directly connected to the bus bar for the power system; the super capacitor is connected to the bus bar for the power system via the first DC/DC converter; the protective resistor is connected to the bus bar for the power system via the second DC/DC converter; the controller for the compound power system outputs actuation signals to the AC/DC inverter, the first DC/DC converter, and the second DC/DC converter, so as to control the engine generator set, the super capacitor and the protective resistor. The ...

Charging and discharging active equalization circuit for lithium ion power battery pack

The invention provides a charging and discharging active equalization circuit for a lithium ion power battery pack. A voltage acquisition module and a voltage equalization circuit are arranged for each battery package of the power battery pack. The voltage of each battery individual is acquired in real time through the corresponding voltage acquisition module and sent to a battery management system. When the voltage of each battery individual or each battery package or the power battery pack exceeds a set upper limit and a set lower limit, voltage equalization is conducted; each voltage equalization circuit comprises a transformer and equalization switch MOS transistors. Each battery individual in power packages, each battery package in the power battery pack and the whole power battery pack are respectively connected to a winding of the same-core transformer through the corresponding two equalization switch MOS transistors. The equalization switch MOS transistors are controlled to be switched ...

Power battery thermal runaway early warning method and system based on singular spectrum entropy

The invention provides a power battery thermal runaway early warning method and system based on singular spectrum entropy, and the method comprises the steps: collecting and uploading output signals of each sensor of a power battery through a vehicle end, constructing a mode matrix according to a time domain signal sequence formed by a signal transmission-in time sequence, carrying out the singular value decomposition of the mode matrix, and carrying out the early warning of the thermal runaway of the power battery. The singular values are arranged to form a singular spectrum of the signals, then singular spectrum analysis of the signals is carried out, singular spectrum entropy of a time domain signal sequence is obtained through calculation, and the singular spectrum entropy subjected to normalization processing is used for quantitatively evaluating an alarm coefficient and comparing the alarm coefficient with an alarm threshold value, so that the thermal runaway risk of the power battery ...

Range-extended electric automobile

The invention discloses a range-extended electric automobile using a micro gas turbine generator set. The electric automobile comprises a power electronic converter, a vehicle-mounted charger, an energy storage device, an energy management unit, an overall controller, an electromotor, a speed changer, a micro gas turbine controller, the micro gas turbine generator set and a fuel tank; and under the control of the overall controller, the fuel tank supplies fuel to the micro gas turbine generator set, and the micro gas turbine generator set generates electricity to increase the running mileage of the vehicle. The ranged-extended pure electric automobile reduces the dependence on a charging foundation facility, can adapt to running of high-speed and suburb road conditions better, improves the adaptability of the vehicle, meanwhile diversifies the energy of the vehicle, is favorable for energy safety, and solves the refrigerating and heating problems of the pure electric automobile.

Composite oil gas separation method and composite oil gas separator

The present invention relates to a method and a device for separating liquid or solid particles in air flow, especially to a composite oil gas separation method applied to the crankcase blow-by of internal combustion engine and a composite oil gas separator. The method adopts a mode of combining an active centrifugal type separation and a passive cyclone type separation for separating. The device is mainly composed of an active centrifugal type separator and a passive cyclone type separator. The active centrifugal type separator adopts a one-stage separation. The passive cyclone type separator adopts a two-stage separation. The air outlet (C) of active centrifugal type separator is communicated with the gas tangential inlet (D) of passive cyclone type separator. The center of separation chamber of passive cyclone type separator is installed with an exhaust insertion tube (13) for forming a gas outlet (E) of passive cyclone type separator. The lower end of separation chamber of passive cyclone ...

Vehicle-mounted network intrusion detection data set richness evaluation method based on improved SOM

The invention discloses a vehicle-mounted network intrusion detection data set richness evaluation method based on an improved SOM, and the method comprises the steps: 1, giving a vehicle-mounted network intrusion data set, and dividing a data packet into a normal type and an attack type according to the label of the data packet; 2, dividing a data packet into a header and a load according to different protocol types; step 3, performing SOM clustering on different features, loads and data packets to obtain partial features, loads and overall category numbers under a specific threshold, and further obtaining a data set richness matrix; and 4, processing different data sets, and comparing the richness matrix of each data set so as to compare the richness of different vehicle-mounted network intrusion data sets from different angles. According to the method, the richness of the data set can be evaluated from different angles, transverse comparison of different real and virtual data sets is ...

A secure communication method of integrated distributed electric vehicle controller

Abstract The invention relates to a secure communication method of integrated distributed electric vehicle controllers. According to the communication method, a gateway is configured in an electric vehicle controller network, vehicle-mounted electric control units in the electric vehicle controller network are connected with the gateway to constitute integrated distributed architecture for communication with an external network, and a first white 5 box encryption algorithm is built in the gateway to encrypt data packet transmission among the vehicle-mounted electric control units in real time. By adoption of the secure communication method provided by the present invention, the data information transmission among the vehicle-mounted electric control units can be monitored and controlled in real time, the white box breaking and decoding of sensitive driving information and keys are effectively defended, and the security of data transmission is improved. External net w r Vehicle-mounted electric ...

An information security method of distributed electric vehicle controllers

Abstract The invention relates to an information security method of distributed electric vehicle controllers. According to the information security method, embedded MCUs and CAN transceivers are added to the electric vehicle controllers, the embedded MCUs and the CAN transceivers are connected with each other in the electric vehicle controllers, the embedded MCUs are connected with existing master MCUs in respective electric 5 vehicle controllers to constitute communication units in the corresponding electric vehicle controllers, the communication units are connected through the respective CAN transceivers to form distributed architecture for receiving and transmitting CAN information, and encryption and decryption algorithms are built in the embedded MCUs of the communication units for encrypting and decrypting the CAN information in real time and performing security isolation and protection. By the adoption of the information security method provided 10 by the present invention, the data ...

Pleurotus eryngii culture material and preparation method thereof

The invention relates to a method for utilizing fresh triarrherca sacchariflora and hybridized pennisetum alopecuroides for greenhouse cultivation of pleurotus eryngii, and the method belongs to a cultivation method for edible fungi in fungus production. The pleurotus eryngii culture material employs two kinds of fungus grass such as triarrherca sacchariflora and hybridized pennisetum alopecuroides, and auxiliary materials such as wheat bran, cob, lime and brown sugar, and five formulas are employed for greenhouse cultivation of pleurotus eryngii by using fresh fungus grass. Based on the biological characteristics of pleurotus eryngii, according to the principle of fully utilizing local resource, high-quality triarrherca sacchariflora and hybridized pennisetum alopecuroides grown in Tianjin area are selected as raw materials, and a scientific cultivation technology is utilized for cultivation of pleurotus eryngii. By taking fresh triarrherca sacchariflora and hybridized pennisetum alopecuroides ...

Gasoline engine particulate matter filter regeneration system and gasoline engine particulate matter filter regeneration method

The invention discloses a gasoline engine particulate matter filter regeneration system and a gasoline engine particulate matter filter regeneration method. The gasoline engine particulate matter filter regeneration system mainly comprises an air pump loop and a particulate matter filter, wherein the air pump loop comprises an air valve, a connecting pipe A, a connecting pipe B and an air pump; pressure sensors are respectively arranged at the front and the rear of the particulate matter filter; and the particulate matter filter is provided with a heating coil. When the regeneration system determines that regeneration is required, electric heating is carried out. The particulate matter filter is also provided with a thermocouple type temperature sensor which monitors the temperature of the particulate matter filter in real time during regeneration. Once the temperature of the filter exceeds a warning value (900 DEG C), an air pump is closed, and regeneration stops. After a gasoline engine ...

Hybrid power system for electric car

The invention discloses a hybrid power system for an electric car. The hybrid power system comprises a power battery, a supercapacitor, a first DC/DC converter, an engine-generator set, an AC/DC converter, a protective resistor, a second DC/DC converter, a power system bus and a hybrid power system controller. The power system bus is connected with a load. The engine-generator set is connected to the power system bus through the AC/DC converter, the power battery is directly connected to the power system bus, the supercapacitor is connected to the power system bus through the first DC/DC converter, the protective resistor is connected to the power system bus through the second DC/DC converter 7, and the hybrid power system controller outputs drive signals of the AC/DC converter, the first DC/DC converter and the second DC/DC converter to control the engine-generator set, the supercapacitor and the protective resistor. According to the hybrid power system, the service life of the power battery ...

Gasoline engine particulate matter filtering system and regeneration method

The invention discloses a gasoline engine particulate matter filtering system and a regeneration method. The gasoline engine particulate matter filtering system mainly comprises a particulate matter filter (2), a three-way catalyst (1), a differential pressure transducer (4), a temperature sensor (5) and a control module. The particulate matter filter and the three-way catalyst of the filtering system are arranged in a tight coupling mode, and passive regeneration of particulate matter under most working conditions can be achieved. When it is detected that the particulate matter loading level of the particulate matter filter is too high, the control module starts active regeneration, temperature rise of exhaust gas is achieved by enabling an engine to operate in a relative-thin mixed gas working condition and postponing ignition, so that particulate matter is combusted, and the purpose of regeneration is achieved.

Primary inverter waveform frequency control method and system for wireless power transmission system

The invention relates to a wireless power transmission system primary side inversion waveform frequency control method and system, and the system comprises a wireless energy transmitting end, and a high-frequency inversion circuit, a compensation circuit and a transmitting end control circuit which are disposed at the wireless energy transmitting end. The voltage sensor is arranged between the high-frequency inverter circuit and the compensation network and is used for acquiring voltage signals according to a time sequence; the transmitting end control circuit comprises a waveform detection circuit module and a feedback control circuit module connected with the waveform detection circuit module, the waveform detection circuit module performs Fourier transform on detected voltage signal data to obtain an acquisition signal function X (t), and performs Fourier transform on current input frequency to obtain a theoretical signal function Y (t); the correlation coefficient rho xy of the two ...

Emergency start-up aid device for tandem type hybrid powered electric automobile

Lane departure state estimation method and device and storage medium

The invention discloses a lane departure state estimation method, a lane departure state estimation device and a storage medium, which are used for reducing the false alarm rate. The lane departure state estimation method disclosed by the invention comprises the following steps: determining a virtual lane line position; predicting a future trajectory of the vehicle; calculating double-cross-lane time, and smoothing the double-cross-lane time; and determining the current departure state of the vehicle according to the virtual lane line position, the future trajectory of the vehicle and the double-cross-lane time. The invention further provides a lane departure state estimation device and a storage medium.

Charging/discharging active equalization circuit for lithium ion power battery pack

The invention provides a charging/discharging active equalization circuit for a lithium ion power battery pack, comprising a voltage acquisition module, a single battery selection circuit, a voltage equalization circuit, a storage battery and a power battery pack. The charging/discharging active equalization circuit for the lithium ion power battery pack serves as a part of a battery management system of on-board power battery pack and is developed based on the improvement of the traditional charging/discharging equalization method; the equalization circuit is simple, reliable and easy to control; when the power battery pack is equalized, no electric energy of the power battery pack is consumed basically; and the active equalization course is rapid and high-efficient and the charging/discharging state of battery can be managed effectively, so that the service life of battery can be prolonged.

Power battery equivalent cloud data generation method and system

The invention provides a power battery equivalent cloud data generation method and system based on offline detection data, and the method comprises a power battery offline detection step, a power battery cloud data description establishment step, an equivalent data processing step, an equivalent data correction step and an integration detection step. And screening and simulating the cloud data by taking the established cloud data description of the power battery as a condition to construct equivalent cloud data of the power battery, performing equivalent data correction processing on the equivalent data, comprehensively evaluating the equivalent condition of the equivalent cloud data of the power battery, and circulating the steps until the consistency requirement is met. According to the method, a set of reliable power battery equivalent cloud data is established, and a reliable data basis can be provided for power battery cloud model and algorithm evaluation.

Power battery use data restoration system and method

The invention provides a power battery use data restoration system and method, and the system comprises a data cleaning module, a data quality initial evaluation module, a data restoration module and a data quality re-evaluation module which are all disposed on a cloud battery management system big data platform and are connected in sequence. The data quality initial evaluation module is used for performing data quality initial evaluation on the power battery use data subjected to data cleaning, determining whether the data meets a repair lower limit or not and judging a data missing degree; the data restoration module can perform data restoration on three kinds of data with different missing degrees through a spline interpolation method, a time sequence prediction algorithm and a matrix decomposition algorithm/deep learning algorithm, and finally the data quality review module performs comprehensive evaluation on the data quality, so that the data restoration efficiency is improved on ...

Diesel engine particle catcher

Aseptic sampling device for biological sample

The invention provides an aseptic sampling device for a biological sample. The aseptic sampling device comprises a hollow fiber membrane module, an air supply unit and a sampling tool, wherein an air inlet pipe and an air outlet are formed in the hollow fiber membrane module; the sampling tool is fixed on the air outlet; the air supply unit is connected with the air inlet pipe; the hollow fiber membrane module comprises a hollow fiber hydrophobic membrane; the inner diameter of the hollow fiber hydrophobic membrane is 0.8+/-0.5mm; the thickness of a membrane fiber is 0.15mm; the porosity is 85%; and the aperture is 0.1-0.16mu m. The aseptic sampling device has the beneficial effects that the air inlet pipe in the device can be externally connected with air supply equipment, so that the functions of extremophile bacteria in isolated air during the period of sampling the biological sample are achieved.

Electrical vehicle high-voltage line leakage diagnosis device

The invention provides an electrical vehicle high-voltage line leakage diagnosis device. The diagnosis device comprises a resistor A, a resistor B, a resistor C, a resistor D, a switch A, a switch B, a sensing belt and a diagnosis circuit, and the diagnosis circuit comprises a diagnosis signal generating circuit, a diagnosis signal receiving circuit and a monitoring unit. The positive or negativeleakage situation of a high-voltage line and the short circuit situation of the high-voltage line are quantitatively detected by winding the sensing belt around the high-voltage line, and a leakage message is sent to a control system or display system of the electrical vehicle through a CAN (Control Area Network) line in the leakage detection process so as to achieve the action of reminding or warning. The leakage diagnosis device and a diagnosis device thereof have no influence on the detected high-voltage line by using a non-contact detection method.

Series connection type mixed power electric car auxiliary driving means for emergency

The invention relates to an emergency treatment device for a tandem type mixed power electric automobile, in particular to an emergency auxiliary drive device for the tandem type mixed power electric automobile. When a generator and an electric motor etc. is out of work, through the invention, the torque can be transferred directly from the generator to driving wheels, which contributes to emergency recovery of all automobile functions. The device which consists of a slide bar, a slide bar connecting piece, a one-way clutch and a free joint is characterized in that one end of the slide bar I (2) and the slide bar II (3) are connected by the slide bar connecting piece (5) with each other, the other end of the slide bar I (2) is connected by the free joint (1) with the generating set in the tandem type mixed power electric automobile, the other end of the slide bar II (3) is provided with the one-way clutch (6) by which the torque can be transferred from the generating set to the driving ...

Stabilized-pressure oil supply system of high-pressure direct-injection injector and control method thereof

The invention provides a stabilized-pressure oil supply system of a high-pressure direct-injection injector and a control method thereof. The stabilized-pressure oil supply system mainly comprises a high-pressure nitrogen cylinder, a pressure reducer, a step motor, a pressure sensor A, a two-position three-way electromagnetic valve A, an accumulator, a two-position three-way electromagnetic valveB, a pressure sensor B, an injector, a check valve, a fuel pump, an oil tank, a controller and a display screen. The stabilized-pressure oil supply system can automatically regulate the injection pressure of the injector of the stabilized-pressure oil supply system to a set injection pressure through the controller of the stabilized-pressure oil supply system according to the pressure parameter set on the display screen and can reduce the oil pressure fluctuation in the injection of the injector. The stabilized-pressure oil supply system has an accumulator oil supply path, so the fuel supply to ...

Driver blind area intelligent compensation system based on laser radar

The invention belongs to the technical field of automatic driving vehicles, and provides an intelligent driver blind area compensation system based on a laser radar, which acquires information of traffic participants around a vehicle by using a vehicle-mounted laser radar and a recognition algorithm, recognizes the face orientation of a driver and judges a real-time attention area of the driver in combination with an in-vehicle camera, and finally, performs real-time compensation on the driver blind area. A blind area existing in an observation area of a driver is obtained in real time, information of objects or traffic participants in the blind area is obtained through screening according to global information obtained by the laser radar, and finally a display device is used for reflecting warnings of shielded objects into eyes of the driver through light rays. And a perspective-like compensation effect capable of following the head of the driver in real time is formed. According to the ...

Non-vehicle-mounted type diesel engine particle catcher regeneration device

BEV driving range estimation device and method based on remote data transmission

The invention discloses a BEV driving range estimation device based on remote data transmission. The device comprises a vehicular navigator, a control unit module, a GPRS communication module, a SOC computation module, and an information center. The vehicle navigator performs GPS positioning on a vehicle to acquire location information of the vehicle. A driver enters a destination into the vehicular navigator which sets a driving line. The control unit module stores vehicle information, including vehicle type, vehicle parameters and motor parameters. The control unit module divides the driving line set by the vehicular navigator into a plurality of segments and transmits a signal of extracting reference kinematic fragments to the information center through the GPRS communication module. The control unit module receives the reference kinematic fragments, then computes power consumption delta C of driving on the segments, and outputs the data to the SOC computing module which estimates current ...

Stabilized-pressure oil supply system of high-pressure direct-injection injector and control method thereof

The invention provides a stabilized-pressure oil supply system of a high-pressure direct-injection injector and a control method thereof. The stabilized-pressure oil supply system mainly comprises a high-pressure nitrogen cylinder, a pressure reducer, a step motor, a pressure sensor A, a two-position three-way electromagnetic valve A, an accumulator, a two-position three-way electromagnetic valve B, a pressure sensor B, an injector, a check valve, a fuel pump, an oil tank, a controller and a display screen. The stabilized-pressure oil supply system can automatically regulate the injection pressure of the injector of the stabilized-pressure oil supply system to a set injection pressure through the controller of the stabilized-pressure oil supply system according to the pressure parameter set on the display screen and can reduce the oil pressure fluctuation in the injection of the injector. The stabilized-pressure oil supply system has an accumulator oil supply path, so the fuel supply to ...

Inductive non-contact charging device with precise centering function for electric automobile

The invention discloses an inductive non-contact charging device with a precise centering function for an electric automobile. The inductive non-contact charging device comprises an electric energy transmitting terminal and an electric energy receiving terminal. The electric energy transmitting terminal enables an electric energy transmitting coil to generate a high-frequency alternating magnetic field through a PWM rectifying circuit and a high-frequency inverter circuit and sends the energy to an electric energy receiving coil, arranged on the automobile, in the electric energy receiving terminal. The power battery is charged through the rectifying circuit and a step-down circuit. Meanwhile, after center position information of the electric energy transmitting coil and center position information of the electric energy receiving coil are acquired and compared, the position of the electric energy transmitting coil is adjusted and centering between the electric energy transmitting coil ...

Underground garage is with going out warehouse entry ramp

The utility model relates to a ramp, concretely relates to underground garage is with going out warehouse entry ramp, including the foundation cushion that the slope set up, the foundation cushion upper berth is equipped with rubble concrete layer, and rubble concrete layer top is provided with reinforced concrete, is provided with the road surface drainage ditch in the reinforced concrete, and road surface drainage ditch top is provided with the recess, is provided with prefabricated reinforced concrete board in the recess, is provided with the through -hole on the prefabricated reinforced concrete board, road surface drainage ditch and the side escape canal intercommunication that is located the lane both sides, and the side of side escape canal is located reinforced concrete. Be provided with the through -hole and as anti -skidding groove, not only can play anti -skid on the precast reinforced concrete board, opening part and domatic flushing moreover, the vehicle travel when domatic ...

Vehicle blind area cooperative sensing system and method based on roadside sensor

The invention discloses a vehicle blind area collaborative sensing system and method based on a roadside sensor, and belongs to the technical field of intelligent automobiles. The vehicle blind area collaborative sensing system based on the roadside sensor comprises a blind area recognition module, a risk assessment module and a sensing information fusion module, blind area recognition and division are carried out on a vehicle in various scenes by using sensing information of the roadside sensor, and blind area risks are accurately assessed in real time; and the perception information is subjected to space-time fusion and return compensation so as to achieve the purpose of collaborative perception.

Automatic-regulating discharged particulate matter dilution sampling device

The invention discloses an automatic-regulating discharged particulate matter dilution sampling system; the system includes a dilution air regulating unit, a diluter unit, a particulate matter sampling unit and a signal conditioning and acquisition unit, and the dilution air regulating unit includes a high-efficiency particulate matter filter purifier, a pressure limiting valve, a flow controller and an electric heater, and is used for regulating the dilution air flow and temperature; the diluter unit is an air and sampling gas staying room with a thermal insulation material; the particulate matter sampling unit includes an optical fiber filter paper clamp and a three-way valve which is only used when other test system is needed to be connected); the signal conditioning and acquisition unit comprises sensor data acquisition, signal processing, data acquisition card, and PC (personal computer) LabVIEW (laboratory virtual instrumentation engineering workbench) data acquisition and PID (proportion ...

Cloud driver abnormal state detection and alarm system and method

The invention relates to a cloud driver abnormal state detection and alarm system and method, belongs to the technical field of safe driving, and solves the problems of difficulty in model training, limited recognition scenes, different recognition effects from person to person, high requirement on vehicle-mounted hardware computing power and low resource utilization rate of a cloud computing platform and big data in the prior art. A single vehicle state information acquisition and analysis subsystem is utilized to perform acquisition and analysis processing on each vehicle to obtain driver comprehensive feature information and vehicle driving state information, and the driver comprehensive feature information and the vehicle driving state information are uploaded to a cloud driver information anomaly detection subsystem; based on the vehicle driving state information, the driver comprehensive feature information of each vehicle is divided according to feature driving categories and processed ...

Electric spark composite machining process in magnetic field

Vehicle-mounted network intrusion detection method supporting data privacy protection

The invention provides a vehicle-mounted network intrusion detection method supporting data privacy protection, and the method comprises the following steps: 1, collecting the real data of a vehicle CAN bus, generating data containing intrusion through employing the characteristics of an attack mode, and constructing an intrusion detection data set; 2, processing the data in the data set to complete feature extraction; 3, plaintext information is converted into ciphertext information through homomorphic encryption, and a neural network training model is used for training; 4, after training is completed, the detection model sets the weight output by the training model, and intrusion detection is carried out. The problems that data privacy cannot be protected and the detection precision is low in the prior art can be solved.

Single-fuel liquified-petroleum-gas automobile cold-state starting heat-insulation preheating system

Driving characteristic data processing method and device and storage medium

The invention discloses a driving characteristic data processing method and device and a storage medium, which are used for reducing the false alarm rate. The driving characteristic data processing method disclosed by the invention comprises the following steps: extracting traffic flow motion characteristics of a side lane; driving characteristics based on the single-person driving simulator are extracted; and determining a left boundary steering angle and/or a right boundary steering angle of a steering wheel steering angle of the driver without an obvious steering intention according to the side lane traffic flow motion characteristics and the driving characteristics. The invention further provides a driving characteristic data processing device and a storage medium.

Neural network system state observer construction method based on battery energy observation system

The invention discloses a neural network system state observer construction method based on a battery energy observation system, and the method comprises the steps: carrying out the equivalent circuit analysis of a lithium ion battery, building an equivalent circuit model considering the self-discharge of the battery, carrying out the deduction and hypothesis of the model, and constructing a system observable state-space equation; the method comprises the following steps: constructing a state-space equation that the system is observable and accords with the final consistency and bounded of estimation errors, designing a neural network solver for an unknown function item of an observable system, and carrying out approximation solution, including an overall architecture of a neural network, a coefficient optimization direction and a neural network trigger type online updating mechanism. And designing a system state observer to estimate the system state in real time based on a state-space ...

Electric energy burglary preventing non-contact charging device for electric automobile

The invention discloses an electric energy burglary preventing non-contact charging device for an electric automobile, and belongs to the field of new energy automobile engineering. The charging device comprises an electric energy emitting unit and an electric energy receiving unit, and the electric energy emitting unit comprises an electric energy sending coil, an electric energy conversion module, a primary frequency control module, a wireless communication module a, an inductance value influence coil a, a ferromagnetic core a, an electric energy burglary judgment module, an alarm module and an electric energy burglary induction coil. The electric energy receiving unit comprises an electric energy receiving coil, an electric energy receiving conversion module, a secondary frequency control module, a wireless communication module b, an inductance value influence coil b and a ferromagnetic core b. Work efficiency is not changed fundamentally, meanwhile, the work efficiency of an electric ...

Automatic driving domain control device for pure electric vehicle

The invention relates to an automatic driving domain control device for a pure electric vehicle, which comprises an automatic driving control unit, a whole vehicle control unit and a communication bus which are integrated on the same PCB (Printed Circuit Board), and the automatic driving control unit comprises a first automatic driving control unit and a second automatic driving control unit controlled by the first automatic driving control unit, the first automatic driving control unit and the second automatic driving control unit are connected through the communication bus, the whole vehicle control unit is connected with the first automatic driving control unit and the second automatic driving control unit through the communication bus, all the units work cooperatively, the overall size of parts and the connection of wire harnesses are effectively reduced, and the cost is reduced. Compared with the prior art, PCB layout is more compact, production cost is saved, overall arrangement space ...

Power battery charge state estimating device and method

The invention discloses power battery charge state estimating device and method. The device comprises a storage battery and a storage battery ECU. The storage battery comprises a plurality of battery modules serially connected. Each battery module comprises a plurality of single batteries serially connected. The storage battery ECU comprises a voltage measuring unit, a current measuring unit, a temperature measuring unit, an electromotive force calculating unit, an accumulation current coefficient correcting unit, an accumulator, an SOC estimating unit, a charging efficiency calculating unit and a polarization voltage estimating unit. By the different calculating methods of the battery under polarization voltage of different states, the electromotive force of the battery can be obtained accurately, and estimation accuracy of SOC can be guaranteed.

High-power non-contact charging system main circuit fault detection device

The invention discloses a high-power non-contact charging system main circuit fault detection device which is applied to an electric automobile non-contact charging system. The detection device detects a system main circuit and the centering condition of a primary coil and a secondary coil before charging. The non-contact charging power of an electric automobile is high, and the voltage and the current of the main circuit are high, so that the faults such as disconnection and short circuit of components and parts on the main circuit may cause overvoltage and overcurrent of other components and parts and lead to breakdown of the whole system. In addition, whether the primary coil and the secondary coil are centered in the non-contact charging system exerts a tremendous influence on the charging efficiency. By means of a testing method that a contact group is externally connected with a low voltage power supply and a test resistor, the two problems are solved, and the device provides forceful ...

Powerful all direction rotation grinder

A strong omnibearing barrelling apparatus for omnibearing surfacial smoothing and burring of middle- or large-scale disk parts such as wheel hub or brake disk of car features that its vertical barrelhas lower cylindrical structure and upper reduced table structure and its machining main shaft is an adjustable 3-D structure. Its advantages include simple method, one step omnibearing machining to surface of workpiece, low cost, high efficiency, no pollution and stable machining quality.

Double clutch operation system and separation and combination control method thereof

The invention provides a double clutch operation system and a separation and combination control method thereof. The double clutch operation system comprises a double clutch operator, a permanent magnet alternating-current machine, a ball nut, a lead screw, a clutch master cylinder, an oil cup, a two-position three-way electromagnetic valve A, a two-position three-way electromagnetic valve B, a one-way valve A, a one-way valve B, an electric control proportioning valve A, an electric control proportioning valve B, a clutch sub-cylinder assembly A and a clutch sub-cylinder assembly B. In the double clutch operation system, the concentric clutch sub-cylinder of the system simplifies drive assembly and reduces axial dimension, and the operation systems of two sets of clutch assembles are integrated together, so that the number of parts is reduced, arrangement is flexible, and the requirements of double clutch hybrid power assemblies in various hybrid ratios and with various function modes ...

Range-extended electric automobile

The invention discloses a range-extended electric automobile using a micro gas turbine generator set. The electric automobile comprises a power electronic converter, a vehicle-mounted charger, an energy storage device, an energy management unit, an overall controller, an electromotor, a speed changer, a micro gas turbine controller, the micro gas turbine generator set and a fuel tank; and under the control of the overall controller, the fuel tank supplies fuel to the micro gas turbine generator set, and the micro gas turbine generator set generates electricity to increase the running mileage of the vehicle. The ranged-extended pure electric automobile reduces the dependence on a charging foundation facility, can adapt to running of high-speed and suburb road conditions better, improves the adaptability of the vehicle, meanwhile diversifies the energy of the vehicle, is favorable for energy safety, and solves the refrigerating and heating problems of the pure electric automobile.

Automatic drainage device of rail vehicle air pipeline system

The invention discloses an automatic drainage device of a rail vehicle air pipeline system. The automatic drainage device comprises a control unit, a control air source pipeline, a transition connecting flange, a filtering element, an automatic drainage valve and the like. The automatic drainage device can be synchronously started with an air compressor, the accumulated water of a main air reservoir can be automatically drained, the quality of air inside the rail vehicle air pipeline system can be improved, and the problems that due to the fact the accumulated water corrodes the pipeline, valve types are clamped and stagnated and other brake systems break down are solved. The automatic drainage valve comprises an automatic drainage functional assembly and a manual drainage functional assembly, the automatic drainage functional assembly is provided with a valve seat cavity, an automatic drainage piston and a compression reset spring are arranged inside a lower valve cover, and the up-and-down ...

Chlorine supplementing equipment

The utility model relates to chlorine supplementing equipment. Fixing plate, a water softening system is arranged on the fixed plate; the water inlet end of the water softening system is connected with the water outlet end of the booster pump through a clear water pipeline; the water inlet end of the booster pump is communicated with the clean water inlet tank; the base is arranged on the back surface of the fixing plate; an electrolyte feeding device is arranged on the fixed plate; the base is arranged on the front of the fixing plate; the output end of the electrolyte feeding device is connected with the feeding end of the electrolyte pipeline; the electrolyte pipeline is also connected with the output end of the water softening system; the output end of the electrolyte pipeline is connected with the feeding end of the electrolysis device; the feeding end of the electrolysis device is further connected with the output end of the water softening system, the output end of the electrolysis ...

Double clutch operation system and separation and combination control method thereof

The invention provides a double clutch operation system and a separation and combination control method thereof. The double clutch operation system comprises a double clutch operator, a permanent magnet alternating-current machine, a ball nut, a lead screw, a clutch master cylinder, an oil cup, a two-position three-way electromagnetic valve A, a two-position three-way electromagnetic valve B, a one-way valve A, a one-way valve B, an electric control proportioning valve A, an electric control proportioning valve B, a clutch sub-cylinder assembly A and a clutch sub-cylinder assembly B. In the double clutch operation system, the concentric clutch sub-cylinder of the system simplifies drive assembly and reduces axial dimension, and the operation systems of two sets of clutch assembles are integrated together, so that the number of parts is reduced, arrangement is flexible, and the requirements of double clutch hybrid power assemblies in various hybrid ratios and with various function modes ...

Driving ability evaluation method and device, electronic equipment and storage medium

The embodiment of the invention relates to a driving ability evaluation method and device, electronic equipment and a storage medium. The method comprises the steps that a preset parameter set in a first driving scene is acquired; determining a view contour range of the driver according to the first view angle, the second view angle and the position information in the preset parameter set; taking an intersection area of the view contour range and the road area range as an observation area range of the driver, and determining the area of the observation area range; according to the area of the observation area range and the area of the area, the perception ability of the driver is evaluated, and a first evaluation result is obtained; according to the actual operation track, the actual operation time, the standard operation track and the standard operation time, the operation ability of the driver is evaluated, and a second evaluation result is obtained; and comprehensively evaluating the ...

Atomizing test constant-volume elastomer

The invention discloses an atomizing test constant-volume elastomer, which comprises an elastomer main body, an elastomer upper cover, an oil atomizer mounting seat, an oil atomizer, an elastomer sealing plate, quartz glass, a quartz glass flange and an elastomer lower cover. The atomizing test constant-volume elastomer can improve the experiment efficiency of an oil atomizer atomizing characteristic experiment considerably, increase the safety of the oil atomizer atomizing characteristic experiment and enhance the image photographing effect of the atomizing experiment, so that the accuracy of experiment analysis and the experiment quality are improved, the influences of the temperature of the atomizing test constant-volume elastomer on the oil atomizer temperature are reduced, the temperature of the oil atomizer is guaranteed to be equal to the atmosphere temperature, the atomizing characteristics of different oil atomizers can be tested and the applicability of the atomizing test constant-volume ...

Pneumatic power diaphragm type wet blank clamping device and method of use thereof

Process for machining electric spark small hole by using compound electrode

Fire detecting method and system of internal combustion engine

Composite oil gas separation method and composite oil gas separator

The present invention relates to a method and a device for separating liquid or solid particles in air flow, especially to a composite oil gas separation method applied to the crankcase blow-by of internal combustion engine and a composite oil gas separator. The method adopts a mode of combining an active centrifugal type separation and a passive cyclone type separation for separating. The deviceis mainly composed of an active centrifugal type separator and a passive cyclone type separator. The active centrifugal type separator adopts a one-stage separation. The passive cyclone type separatoradopts a two-stage separation. The air outlet (C) of active centrifugal type separator is communicated with the gas tangential inlet (D) of passive cyclone type separator. The center of separation chamber of passive cyclone type separator is installed with an exhaust insertion tube (13) for forming a gas outlet (E) of passive cyclone type separator. The lower end of separation chamber of passivecyclone ...

Powerful all direction rotation grinder

Atomizing test constant-volume elastomer

The invention discloses an atomizing test constant-volume elastomer, which comprises an elastomer main body, an elastomer upper cover, an oil atomizer mounting seat, an oil atomizer, an elastomer sealing plate, quartz glass, a quartz glass flange and an elastomer lower cover. The atomizing test constant-volume elastomer can improve the experiment efficiency of an oil atomizer atomizing characteristic experiment considerably, increase the safety of the oil atomizer atomizing characteristic experiment and enhance the image photographing effect of the atomizing experiment, so that the accuracy of experiment analysis and the experiment quality are improved, the influences of the temperature of the atomizing test constant-volume elastomer on the oil atomizer temperature are reduced, the temperature of the oil atomizer is guaranteed to be equal to the atmosphere temperature, the atomizing characteristics of different oil atomizers can be tested and the applicability of the atomizing test constant-volume ...

Method for improving processing speed and quality of electric spark pinholes

The invention relates to a method for improving the processing speed and the quality of electric spark pinholes, in particular to a technical scheme for improving the processing speed and the quality of the electric spark pinholes by using a water dispersing agent working solution, belonging to the technical field of special processing. The method for improving the processing speed and the quality of electric spark pinhole by using the water dispersing agent working solution is characterized by comprising the steps of preparing the water dispersing agent working solution, processing the electric spark pinholes by using the prepared water dispersing agent working solution and cleaning a pump of working solution to complete the process. The method has advantages of only adding dispersing agents to the original running water working solution without making any alteration on an electric spark machine tool and improving the dispersity of the working solution by using the dispersion effect of ...