9545 results about "Solenoid valve" patented technology

The invention discloses a deep learning-based intelligent optimization method for farmland irrigation water quantity. The method comprises the following steps of S1, obtaining a preprocessed farmland multi-mode perception data set; s2, constructing and training a multi-scale gated SIREN water content continuous prediction model by taking the preprocessed farmland multi-modal perception data set as input; s3, dividing a planned irrigation period into a plurality of time slices, defining a water volume decision vector space and constructing a differential evolution multi-target water volume optimization model; s4, outputting a Pareto optimal water quantity decision vector set meeting a multi-target constraint condition, and selecting an optimal farmland irrigation water quantity from the Pareto optimal water quantity decision vector set according to a user weight or a preset rule; s5, the optimal farmland irrigation water amount is issued to an intelligent valve control system, and an electromagnetic valve is driven to execute irrigation according to time slices. According to the invention, an intelligent irrigation prediction-decision-execution-feedback full-link closed-loop mechanism taking SIREN as a core is realized, and the method has remarkable water-saving and yield-increasing benefits and engineering deployability.

The invention relates to the technical field of remote control, in particular to a steam boiler operation remote dosing control system which comprises a multi-source acquisition module, a state judgment module, a path switching module, a quality verification module and a health evolution module. According to the method, a monitoring system is constructed by fusing multi-dimensional parameters such as flow, pressure and temperature in real time, a single sensor error is eliminated through Kalman filtering, a heat transfer correlation model is established to quantify the water quality and thermal coupling relation, a pipeline blockage critical point is pre-judged based on grey correlation analysis, and non-inductive switching of a dosing path is achieved by adopting a double-electromagnetic-valve redundancy architecture. The stability of medicament conveying is verified by combining the flow offset of a standby path, closed-loop comparison of a concentration amplification value and a target value is synchronously executed to trigger self-calibration to correct the feeding deviation, a water quality adjustment-path switching-precision verification linkage control chain is formed, the abnormal response period is shortened, the scaling rate of a heat transfer surface is reduced, and the stability of the heat efficiency of the boiler is maintained. The equipment maintenance period is prolonged.

The invention discloses a multistage fire-fighting and intelligent heat management combined system and method for an energy storage system, a battery cluster is provided with a single fire extinguishing nozzle, a composite detector monitors the state of the battery cluster in real time, and when any battery cluster meets a spraying condition, the fire extinguishing nozzle is triggered to spray a fire extinguishing material; the internal state of the energy storage cabin is monitored in real time through a composite detector, and when the interior of the energy storage cabin meets the spraying condition, a spraying nozzle is automatically started to continuously spray for preset spraying time; according to the centralized liquid cooling unit, a dual-redundancy compressor is combined with an ethylene glycol aqueous solution circulating system to conduct dynamic flow regulation and control, the opening degree of an electromagnetic valve of the dual-redundancy compressor is dynamically adjusted through a composite detector, and the internal temperature of an energy storage cabin is controlled; dynamically distributing flow according to the energy storage time period by adopting an intelligent temperature control algorithm; after the multi-stage fire-fighting module acts, the centralized liquid cooling unit is started for cooling; when the temperature detected by the composite detector exceeds a high-temperature threshold value, the fan is started for air replacement, and the multi-stage fire-fighting module is triggered to act.

The invention discloses a lithium ion battery immersed liquid cooling regulation and control method and device, terminal equipment and a storage medium, and relates to the field of lithium ion batteries, and the method comprises the steps: obtaining the current temperature data, historical temperature data and cooling liquid fluid parameters of a distributed array in a lithium ion battery, and determining the current temperature field distribution and predicted temperature field distribution; constructing a state space, and inputting the state space into the reference decision model, so that the model outputs corresponding actions according to the current state space by taking the minimum temperature difference of the battery module and the minimum cooling energy consumption as awards; according to the corresponding action, the micro electromagnetic valve and the cooling liquid pump are subjected to benchmark regulation and control; acquiring temperature data after reference regulation and control, and determining temperature deviation in combination with a preset temperature requirement; and regulating and controlling according to the temperature deviation. By implementing the method and the device, the stability of global temperature control is improved, so that the problem of temperature interference on other areas due to cooling liquid flow coupling caused by directly adjusting the opening degree of the valve according to local temperature difference in the prior art is solved.

The invention discloses a pressure regulating solenoid valve, which relates to the technical field of solenoid valves, and comprises a valve body, the top of the valve body is provided with a valve seat, the valve seat is internally provided with a cavity, and through the arrangement of a first pressurizing hole, a second pressurizing hole, a flow dividing hole, a first flow dividing pipeline, a second flow dividing pipeline, a first pressurizing cavity and a second pressurizing cavity, the pressure regulating solenoid valve is formed. During use, when unstable high water pressure flows into the valve body, the high water pressure pushes the inner barrel upwards, then the inner barrel moves upwards to drive the flow dividing holes to move upwards, the flow dividing holes are driven to be sequentially in butt joint with the first pressurizing hole and the second pressurizing hole respectively, and then water is divided into the first flow dividing pipeline and the second flow dividing pipeline; then water flows into the first pressurizing cavity or the second pressurizing cavity, then water pressure is dispersed, then the water flowing into the first pressurizing cavity or the second pressurizing cavity downwards compresses the first spring to cause deformation shortening, and meanwhile, a stretched second spring is matched, so that when the water pressure upwards jacks the sleeve and the inner cylinder, buffering protection on the sleeve and the inner cylinder is enhanced.

The invention provides a constant-heating defrosting system of a heat recovery air conditioner and a defrosting control method and device. According to the system, a compressor, a first electromagnetic valve, a water tank, a first expansion valve, a first one-way valve, a second electromagnetic valve, an outdoor heat exchanger and a four-way valve are connected to form a first heating loop; a compressor, a first electromagnetic valve, a water tank, a first expansion valve, a first one-way valve, a third electromagnetic valve, an energy storage water tank, a fourth electromagnetic valve and a four-way valve are connected to form a first defrosting loop. A compressor, a fifth electromagnetic valve, a second one-way valve, an outdoor heat exchanger and a four-way valve are connected to form a second defrosting loop; and the first heating loop, the first defrosting loop and the second defrosting loop form a single heating water defrosting loop. The problem that in the prior art, in the defrosting process, the comfort experience of a user is affected due to the fact that an air conditioner does not conduct heating is solved.

The invention provides a fuel injector solenoid valve reliability prediction method based on multi-physics field coupling, and relates to the technical field of solenoid valve reliability prediction, and the method comprises the steps: collecting real-time operation data and historical operation data, constructing a multi-physics field coupling model of a solenoid valve, sequentially inputting the historical operation data into the model, and carrying out the prediction of the reliability of the solenoid valve. A finite element analysis method is used for solving the model, multi-physical field distribution characteristics of the electromagnetic valve are obtained, historical reliability parameters are extracted from the multi-physical field distribution characteristics, category labels are added to the historical reliability parameters, real-time operation data are input into the multi-physical field coupling model, and real-time reliability parameters are obtained; and inputting the real-time reliability parameter into the BI-LSTM model, and outputting a prediction result. According to the method, the multi-physical field model and the machine learning model are combined, and the mechanism advantages of the physical model and the data driving advantages of the machine learning model can be comprehensively utilized, so that the reliability of the electromagnetic valve is predicted more accurately.

The invention discloses a system and a method for analyzing the running state of an electromagnetic valve, and relates to the technical field of electromagnetic valve control, the method comprises the following steps: carrying out joint modeling by using a semi-closed feature set Fhc to obtain an incomplete closing probability Puh, generating a dynamic threshold Thp through a self-adaptive threshold, and setting an event level judgment tag Jeh when the incomplete closing probability Puh exceeds the dynamic threshold Thp, so as to obtain the running state of the electromagnetic valve. Compared with an existing scheme that binary judgment is carried out only according to whether the action is completed or not, early and stable recognition is achieved for high-frequency and hidden abnormities such as semi-closed abnormities under common working conditions, and then energy consumption rising and safety risks caused by leakage are blocked in advance; meanwhile, the self-adaptive correction of the dynamic threshold Thp to the environment temperature Tmp and the power supply stability Vst effectively reduces false alarm and missing alarm, so that the judgment is kept consistent under multiple working conditions; the chain type output can directly support operation and maintenance evidence obtaining and trend evaluation, the predictive maintenance efficiency is improved, and unplanned shutdown is reduced.

The invention discloses a load simulation loading system based on an engineering mechanical power system and a control method thereof, and relates to the technical field of mechanical power system simulation. The load simulation loading system comprises an engineering machinery power system, a load loading system, a whole vehicle control unit and an upper computer platform. The engineering machinery power system comprises a first oil tank, a main pump, a pilot pump, a pilot control handle, a signal control valve and a multi-way valve. The load loading system comprises a three-position four-way reversing valve, a proportional overflow valve, a first proportional throttle valve, a second proportional throttle valve, an electromagnetic valve, a third proportional throttle valve and a variable pump, wherein the three-position four-way reversing valve, the proportional overflow valve and the first proportional throttle valve are connected to the multi-way valve, the second proportional throttle valve and the electromagnetic valve are connected to an outlet of the proportional overflow valve, and the third proportional throttle valve is connected between the second proportional throttle valve and the second oil tank. And the three-position four-way reversing valve is constructed to enable an inlet of the proportional overflow valve to be communicated with one of the oil port A and the oil port B of the multi-way valve in a switching manner, and an outlet of the proportional overflow valve to be communicated with the other one of the oil port A and the oil port B in a switching manner.

A valve for quantitative discharge and a discharge method thereof are disclosed.The valve for quantitative discharge includes: a device case(5) having a valve body(51) inside of the device case(5)；the valve body(51) includes a plurality of adjustment units, a first flow channel(53) and a second flow channel(54) inside the valve body(51)；a solenoid valve(52) is installed on the valve body(51)；the adjustment unit(6) includes a piston cavity inside of the adjustment unit(6), and a piston component(64) is arranged in the piston cavity and divides the piston cavity into a liquid storage cavity(61) and a liquid discharge cavity(62)；the adjustment unit(6) also includes a flow guide component(63); when the solenoid valve(52) communicates with the first flow channel(53), the flow guide component(63) communicates with the liquid storage cavity(61), the first flow channel(53) feeds liquid into the liquid storage cavity(61), thereafter, pushing the piston component(64) to slide toward the liquid discharge cavity(62); when the solenoid valve(52) communicates with the second flow channel(54), the flow guide component(63) rises to communicate the liquid storage cavity(61) with the liquid discharge cavity(62); when the solenoid valve(52) recommunicates with the first flow channel(53), the first flow channel(53) introduces liquid into the liquid storage cavity(61) and pushes the piston component(64), causing the liquid in the liquid discharge cavity(62) to be discharged through the liquid outlet.The valve for quantitative discharge can realize the quantitative liquid discharge of a plurality of liquid discharge cavities.

The invention provides a two-phase refrigerator control system and method applied to electrochemical energy storage, the system comprises a two-phase refrigerator, a sensor and a controller, the two-phase refrigerator is composed of a cooling circulation pipeline, a refrigeration circulation pipeline, a plate heat exchanger and a liquid storage tank, the sensor is used for monitoring temperature and pressure, and the controller is used for controlling the temperature and the pressure. The controller accurately controls the system through the electromagnetic valve, the circulating pump, the compressor and the centrifugal fan. The control method is divided into a self-circulation mode and a refrigeration mode, automatic switching can be achieved according to temperature changes, and the cooling efficiency and stability are ensured. Through dual-mode intelligent and frequency conversion control switching, the cooling efficiency and the energy efficiency ratio are remarkably improved, and the problem that in the prior art, the cooling power of a two-phase liquid cooling machine is difficult to effectively control is effectively solved.

The utility model relates to a controller with a good damping effect and an intelligent bed, and provides a controller with a good damping effect, which aims at solving the problem that the sleep of a user is influenced due to large vibration generated by the existing controller, and comprises an air pump assembly for generating airflow, an inner shell for accommodating the air pump assembly, and an outer shell for accommodating the inner shell, the electromagnetic valve assembly is connected with the air pump assembly, the suspension is connected to the upper portion of the inner shell, airflow generated by the air pump assembly is led out by opening and closing the electromagnetic valve assembly, the air pump assembly is connected to the suspension from bottom to top in a suspension mode, and a gap is formed between the air pump assembly and the inner shell. And a buffer piece is arranged at the joint of the suspension frame and the inner shell. According to the air pump assembly, the air pump assembly does not make direct contact with the inner shell, the transmission path for transmitting vibration generated by the air pump assembly to the inner shell through the buffering piece and the suspension is long, the vibration is gradually weakened, generated noise is low, and the influence caused by the vibration is effectively reduced.

The invention provides a hydraulic suspension control method and device, a vehicle and a storage medium, and the method comprises the steps that in response to a request for main power of a hydraulic suspension, the action stroke of the hydraulic suspension and the first speed of a shock absorber are obtained; the working current of the electromagnetic valve is adjusted according to the action stroke; based on the first speed, the value of the main power indicated by the request and the adjusted working current of the electromagnetic valve, the target rotating speed of the hydraulic pump is determined; and controlling the hydraulic pump to operate according to the target rotating speed so as to drive the hydraulic suspension to provide main power. The rotating speed of the hydraulic pump in the working state is accurately determined, so that the hydraulic pump is controlled to operate according to the determined rotating speed, flowing of hydraulic oil in the hydraulic suspension is accurately controlled by accurately controlling the rotating speed of the hydraulic pump, then accurate control over the hydraulic suspension is achieved, and the running requirement of a vehicle is met. And the stability and comfort of vehicle driving are improved.

The invention belongs to the technical field of automobile shock absorber electromagnetic valves, and particularly relates to a hydraulic shock absorber electromagnetic valve for vehicle testing, which controls whether a liquid inlet hole is directly communicated with a main liquid cavity or not through an elastic valve plate, and controls whether the main liquid cavity is communicated with a liquid outlet hole or not through a pressurizing seat. The pressure of oil entering the liquid inlet must overcome the tension of the elastic valve block, the supporting force of the elastic supporting piece can push the elastic valve block and the pressurizing base to move in the direction away from the main valve body, then the oil can flow back to the shock absorber through the liquid outlet hole, and the resistance borne by the oil in the electromagnetic valve is increased. And large damping force is provided for the vibration damper. By arranging the pressurizing cavity, when the electromagnetic coil is powered on, the pilot valve element blocks the overflow hole, oil in the overflow hole applies pressure to the pressurizing base, the oil does not easily push away the pressurizing base and the elastic valve block in the direction away from the main valve body, and oil resistance is further increased. The electromagnetic valve consumes less electric energy, and the vehicle research and development test efficiency is improved.

The invention discloses an automatic oil sampling device which comprises a sampling mechanism, a distance measuring mechanism and a lifting mechanism, the sampling mechanism comprises a sampling bottle, an upper end cover and a lower end cover, the upper end cover and the lower end cover are in threaded connection with the sampling bottle, a hanging ring is arranged at the top of the upper end cover, a pipeline and an electromagnetic valve are arranged on the lower end cover, and the pipeline is communicated with the sampling bottle; the distance measuring mechanism comprises an ultrasonic distance measuring sensor, an alarm and a single-chip microcomputer, the ultrasonic distance measuring sensor is arranged at the bottom of the lower end cover and electrically connected with the single-chip microcomputer, the lifting mechanism comprises a driving part, a support, a winding drum and a lifting rope, and the winding drum is arranged at the top of the support and connected with the support in a pivoted mode. The lifting rope and the cable are wound on the winding drum to descend or ascend along with rotation of the winding drum. The driving piece is in transmission connection with the winding drum. The automatic oil sampling device provided by the invention has the advantages that the sampling is accurate and quick, and the sample is not easy to pollute.

The utility model belongs to the technical field of agricultural irrigation, and particularly relates to intelligent agricultural quantitative irrigation equipment which comprises an irrigation pump, the output end of the irrigation pump is communicated with a plurality of hoses and a plurality of three-way connectors which are alternately arranged, two opposite connectors of each three-way connector are connected to one end of the corresponding adjacent hose in a sleeved mode, and the third connector is communicated with a control assembly. The upper portion of each three-way connector is communicated with a double-spiral pipe through a control assembly, two end openings of each double-spiral pipe face downwards and are communicated with drooping parts, the double-spiral pipes surround the control assembly along the top and the two adjacent drooping parts along the two sides respectively for protection, and the outer sides of the double-spiral pipes are communicated with a plurality of water outlet pipes at intervals along spiral lines. The control assembly comprises an electronic flowmeter and an electromagnetic valve which are communicated with each other. The control assembly is covered from the outside by adopting protective measures, scraping or collision in the follow-up moving process is resisted, and the quantitative irrigation safety of each branch node can be improved.

A winch hydraulic control system includes a hydraulic oil tank, a hydraulic pump, and an electric motor. The hydraulic pump's oil inlet is connected to the hydraulic oil tank, the electric motor is connected to the hydraulic pump, and the hydraulic pump's oil outlet is connected to both port P of the main reversing valve assembly and port P of the control valve assembly. Ports A and B of the main reversing valve assembly are connected to port A of the first shuttle valve, port A of the balancing valve assembly, and port B of the control valve assembly, respectively. Port X is connected to port B of the second solenoid reversing valve. Ports B and C of the first shuttle valve are connected to port B of the balancing valve assembly and port B of the second shuttle valve, respectively. A third pressure reducing valve is connected in parallel with the second solenoid valve. Port P of the second solenoid reversing valve is connected to port X of the control valve assembly, port A of the second shuttle valve, and port SP of the balancing valve assembly. Port C of the second shuttle valve is connected to the rod chamber of the brake. The brake is connected to the hydraulic motor, and the oil outlet of the control valve assembly is connected to the oil inlet of the balancing valve assembly. This design can maintain constant wire rope tension and stable operation.

The utility model relates to the technical field of refrigerants, and discloses an automatic refrigerant filling device which comprises a conveying pipe, the right end of the conveying pipe penetrates through and is fixedly connected with a flow meter, the right end of the flow meter penetrates through and is fixedly connected with a first electromagnetic valve, and the right end of the first electromagnetic valve penetrates through and is fixedly connected with an output pipe. The right end of the output pipe penetrates through and is fixedly connected with a storage tank, the top of the outer ring of the conveying pipe penetrates through and is fixedly connected with a second electromagnetic valve, the top of the second electromagnetic valve penetrates through and is fixedly connected with a connecting pipe, the left end of the connecting pipe penetrates through and is fixedly connected with a connector, and the left end of the connector is fixedly connected with an extension pipe. According to the device, through the extension pipe, the threaded ring, the fixing ring, the connector, the suction cup and the extrusion cover, the extension pipe is inserted into a filling port of equipment needing to be filled, then the threaded ring is rotated for threaded connection, then the suction cup slides, the suction cup is moved to the outer side of the fixing ring, and the suction cup and the port are used for sucking.

The invention relates to the technical field of non-electrical variable control or regulation systems, and discloses an unsteady-state pipe network environment-oriented water purification tail end flow velocity self-adaptive regulation system, which comprises an input state sensing unit, a tail end response monitoring unit, a flow resistance modulation execution unit and a self-adaptive control unit, the system utilizes an adaptive control unit to address a basic driving duty ratio in a preset pressure-flow characteristic map, executes high-frequency flutter injection logic, generates a zero-mean flutter component with the frequency higher than the mechanical cut-off frequency of an execution unit, and superposes the zero-mean flutter component to the basic driving duty ratio to generate a final driving waveform. The flutter amplitude follows an adjusting strategy which is negatively related to the basic driving duty ratio, the contact friction state of an executing mechanism is maintained to be dynamic friction through flutter injection and amplitude dynamic adjustment, on the premise that high-cost hardware is not increased, a static friction dead zone of an electromagnetic valve is eliminated, and non-lagging response to a tiny feedforward instruction is achieved.

The invention discloses an electromagnetic valve vibration fatigue test device and a failure judgment method, and relates to the technical field of electromagnetic valve tests.The electromagnetic valve vibration fatigue test device comprises a test box, a conveying mechanism, a balance weight mechanism, a vibration table, an opening and closing detection mechanism and a clamping detection mechanism; the front end and the rear end of the top in the test box are fixedly connected with counterweight mechanisms, the bottom in the test box is fixedly connected with a vibration table, the right end in the test box is fixedly connected with an opening and closing detection mechanism, and the top of the vibration table is fixedly connected with a clamping detection mechanism and a conveying mechanism; the inlet and outlet pressure of the detected electromagnetic valve is detected through a sensor, failure judgment of the electromagnetic valve is achieved, then the pressure is adjusted through the combination mode of low-speed precise conveying of a piston cylinder and high-speed large-flow conveying of an external fluid conveying box, periodic fluid pressure fluctuation is applied while vibration is conducted, and the real load of the electromagnetic valve is simulated. And the superimposed effect of mechanical vibration and fluid impact is synchronously tested.

A fluid mattress includes:a fluid supply unit capable of supplying a fluid;a fluid path to which the fluid is supplied from the fluid supply unit;a plurality of first cells connected to each other;a plurality of second cells connected to each other;a first solenoid valve including a first end connected to the plurality of first cells and a second end connected to the fluid path;a second solenoid valve including a first end connected to the plurality of second cells and a second end connected to the fluid path;an external solenoid valve including a first end connected to an outside and a second end connected to the fluid path;a pressure sensor that measures a pressure of the fluid in the fluid path; anda controller that receives input of a measurement result by the pressure sensor, and controls the fluid supply unit, the first solenoid valve, the second solenoid valve, and the external solenoid valve.The controller can implementa first mode in which a pressure in the second cell is set to be a first pressure, and a pressure in the first cell is set to be equal to or lower than a second pressure lower than the first pressure, anda second mode in which a pressure in the first cell is set to be the first pressure, and a pressure in the second cell is set to be equal to or lower than the second pressure.The controller, when implementing the second mode by shifting from the first mode, stops the fluid supply unit, causes the first solenoid valve to be in a closed state, causes the second solenoid valve and the external solenoid valve to be in an open state, determines the first pressure based on time during when a measurement value by the pressure sensor changes from a third pressure lower than the first pressure and higher than the second pressure to a fourth pressure lower than the third pressure and higher than the second pressure, and causes the first pressure to be higher as the time is longer.

The present invention relates to a new type of solenoid valve in the field of solenoid valve technology, comprising a valve body and a valve mechanism, wherein an inlet channel and an outlet channel are arranged in the valve body, the valve mechanism comprises a seal for isolating the valve cavity and an electromagnetic structure for driving the seal to move, the electromagnetic structure comprises a cover body, a magnet and a coil, and the magnet and the coil are installed in the cover body at intervals. The present invention embeds the magnet and the coil in the cover body, thereby greatly reducing magnetic leakage, improving the magnetic field utilization rate of the coil, reducing the number of coil turns, reducing power consumption, and effectively solving the heating problem of the solenoid valve. At the same time, the cover body can effectively isolate the external magnetic field, avoid interference with the internal electromagnetic structure, and ensure the stability of the working operation of the solenoid valve; the coil and the valve core with cantilever support are arranged in the gap between the isolation cover and the magnet, so that the solenoid valve will not have any mechanical friction during the process of driving the switch, and the problems of wear and mechanical noise of the solenoid valve are completely solved.

The invention provides a fiber material reinforced ultrahigh-pressure direct-acting electromagnetic valve, which belongs to the technical field of electromagnetic valve design and comprises a valve body, a sealing pipe assembly, a winding body, a movable iron core assembly, a valve port sealing element, an electromagnetic coil and a magnetic conductive shell. Due to the adoption of the innovative structural design reinforced by the fiber material, the long-standing contradiction between the loading capacity and the magnetic circuit efficiency in the field of ultrahigh-pressure electromagnetic valves is skillfully solved, the overall mechanical property of the electromagnetic valve is optimized by the structure, and the magnetic circuit efficiency is guaranteed; meanwhile, the mechanical property of the movable part can be effectively enhanced due to the high-strength characteristic of the fiber material, so that the performance of the movable part is improved, the dynamic response hysteresis bottleneck is effectively overcome, and the response speed is increased; at the sealing part, the overall strength and stability of the sealing part can be enhanced through reinforcement of the fiber material, meanwhile, the sealing part can be prevented from losing efficacy due to medium corrosion through good corrosion resistance of the fiber material, the hidden danger of sealing instability in the high-pressure environment is thoroughly eliminated, and sealing reliability is guaranteed.

The invention discloses a multi-mode direction self-adaptive control method for an electromagnetic valve of a shock absorber, and belongs to the field of vehicle shock absorption control. According to the method, multi-mode signals such as vehicle body acceleration and suspension displacement are collected and preprocessed, working condition modes are divided based on the vehicle speed, the vibration dominant frequency and the roll angle, the damping direction opening ratio of the compression stage and the rebound stage is set according to different working conditions, parameters are dynamically adjusted in combination with the vibration amplitude and frequency, and a control signal is generated to drive an electromagnetic valve to act; meanwhile, a low-power-consumption mode triggered by a vibration energy threshold value and an energy recovery function are achieved, and driver habit self-learning and virtual estimation when a sensor breaks down are achieved through machine learning. According to the method, self-adaptive adjustment of the damping force under the complex working condition is achieved, vehicle driving smoothness and control stability are improved, system energy consumption is reduced, and system adaptability and reliability are enhanced.

The invention discloses a control method for defrosting of a parallel flow evaporator, which comprises the following steps of: constructing a multi-dimensional state sensing network, constructing a three-dimensional state sensing matrix by utilizing a distributed temperature sensor array on the surface of an evaporator coil, an air inlet humidity sensor and an inlet and outlet differential pressure type pressure sensor, and acquiring information such as temperature distribution, environment humidity and air pressure difference; through dynamic threshold self-adaptive judgment, based on an environment temperature field, the historical temperature of an evaporator and an icing critical temperature field calculated by a time sequence prediction model, the defrosting triggering condition is judged by combining humidity and an air pressure difference change gradient field; gradient type energy injection defrosting is adopted, in the first-stage defrosting process, the refrigerant flow is adjusted through a proportional electromagnetic valve to conduct directional defrosting, and in the second-stage defrosting process, a compressor is closed, a fin gap shape memory alloy heating network is activated, and latent heat of a phase change material is released to conduct uniform defrosting. And performing multi-physical field cooperative regulation and control, constructing a coupling model, and adjusting the heating power and pulse modulation duty ratio sequence.

The invention discloses a safety control module for quick change of a robot, which belongs to the technical field of quick change of robots and comprises a controller, an electromagnetic valve and a control valve block. A quick-change disc locking hole, a quick-change disc unlocking hole and a quick-change disc mounting hole are formed in the front end surface of the control valve block; the solenoid valve is installed on the rear end face of the control valve block. The controller is connected with the solenoid valve through a signal line. A channel penetrating through the two ends of the control valve block is formed in the control valve block, the channel is divided into a first valve cavity and a second valve cavity through a piston rod arranged in the middle of the channel, valve element assemblies are arranged in the first valve cavity and the second valve cavity correspondingly, and valve elements have the air-cut pressure maintaining and self-locking functions. The air inlet end of the second valve cavity is communicated with the second air outlet of the electromagnetic valve, and the air outlet end of the second valve cavity is communicated with the quick-change disc locking hole. The air pressure detection function, the air cut-off pressure maintaining function and the air path switching function are integrated, and the automatic locking / unlocking function is achieved.

The application provides a normally open large-flow switching electromagnetic valve and a hydraulic control unit of an automobile brake system. The electromagnetic valve comprises an electromagnetic coil, a valve shell, a moving iron, a valve core, a small-flow valve seat and a large-flow valve seat. An accommodating space is formed in the valve shell. The valve core, the small-flow valve seat and the large-flow valve seat are sequentially arranged in the accommodating space from top to bottom. The valve core is connected with the moving iron, and the electromagnetic coil is arranged around the moving iron and the valve shell. A first elastic member is arranged between the valve core and the small-flow valve seat. The small-flow valve seat and the large-flow valve seat are connected through a second elastic member. When the electromagnetic coil is powered off, the valve core opens a small-flow port, and the small-flow valve seat opens a large-flow port, so that the electromagnetic valve is opened with large flow. When the electromagnetic coil is powered on, the valve core closes the small-flow port, and the small-flow valve seat closes the large-flow port, so that the electromagnetic valve is closed. The application can satisfy the normally open and large-flow capacity of the electromagnetic valve, so as to realize rapid pressure regulation.

The invention belongs to the technical field of vehicles, and discloses a variable valve lift device and a vehicle, the variable valve lift device comprises a rocker arm shaft, an electromagnetic valve, a cam, a fixed rocker arm and a switching rocker arm, the electromagnetic valve is arranged on a support of the rocker arm shaft, the electromagnetic valve is provided with an oil supply way communicated with an engine main oil way, the responsiveness and reliability of a system are improved, and the reliability of the system is improved. The cam is arranged on the rocker arm shaft, the fixed rocker arm is arranged on the rocker arm shaft and can make contact with the cam, the fixed rocker arm is provided with a driving part, the shell is provided with a switching oil way, the switching oil way is communicated with the oil supply way, and the valve is arranged in the shell and divides the shell into a force transmission cavity and a pressure relief cavity. The plunger is arranged in the force transmission cavity in a sliding mode and can make contact with the driving part, the two ends of the first elastic piece are connected to the plunger and the valve respectively, the push rod is arranged in the pressure relief cavity in a sliding mode and can open or close the valve, the two ends of the second elastic piece are connected to the push rod and the bottom wall of the pressure relief cavity respectively, lock pin mechanical force transmission is replaced with hydraulic force transmission, and switching noise is eliminated.