Patents
Literature
9results about How to "Meet control requirements" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
A frequency converter double control system switching module and switching system
ActiveCN116613969BAchieve one-click switchingplay a surveillance rolePower conversion systemsFrequency changerControl system
The application provides a variable frequency converter double control system switching module and a switching system. The switching module is connected with a main control system, an auxiliary control system and a variable frequency converter, and is used for realizing control and feedback signal transmission among the main control system, the auxiliary control system and the variable frequency converter. The switching module selects the main control system or the auxiliary control system to control the variable frequency converter through a control system selection switch, controls whether to connect an external DC 24V power supply to the switching module through the control system selection switch, and then controls the opening and closing states of a plurality of relay switches by using the DC 24V power supply, so as to realize switching of the control system. The switching module comprises a variable frequency converter connection end, a main control system connection end and an auxiliary control system connection end. The application realizes one-key switching of two sets of control systems of the variable frequency converter, and does not need to reconnect the control circuit.
Owner:TIANJIN JUJING AUTOMATION NEW TECH +1
Dual segment delay output module for use in fire fighting equipment
The utility model discloses a kind of double-section delay output module in fire-fighting equipment, including voltage stabilizing module, single-chip microcomputer chip and two switch output modules, voltage stabilizing module is used to convert external power supply into working voltage and power supply to single-chip microcomputer chip, single-chip microcomputer chip has two control signal output ends, and two control signal output ends can be according to the time sequence interval output control signal set inside single-chip microcomputer chip;The signal input end of two switch output modules is respectively connected with two control signal output ends, to realize the output end interval of two switch output modules and carry out output.The circuit structure of the double-section delay output module is simple, novel, reasonable, can realize interval output two-way switch quantity signal, very good meet the control requirement of complex control loop, improve the flexibility of electrical circuit design.
Owner:HONGEN FLUID TECH CO LTD
A steer-by-wire control method, related device and vehicle
The application discloses a kind of drive-by-wire steering control method, related device and vehicle, it is related to vehicle control field, by introducing compensator link in steering wheel executor, with the rotation parameter value of execution link output as input, rotation parameter value is converted and handled, and torque compensation value is obtained.The torque compensation value obtained and the torque value of the control link output of steering wheel executor are fused, and then input to execution link to generate corresponding rotation amount.The output torque of execution link is adjusted, not simply dependent on the adjustment of each parameter of control link, only need to convert the rotation parameter output by execution link simply, then feedback to execution link, to meet the requirements of control stability and hand feeling consistency, effectively reduce the workload of debugging, shorten the debugging time, improve the efficiency of debugging.Further reduce the complexity of control link design and debugging of steering wheel controller, ensure steering feeling.
Owner:SHANGHAI LIXIANG AUTOMOBILE CO LTD
High-integration-level and high-power-density module compatible with Econodual3 package
The invention relates to a high-integration-level and high-power-density module compatible with Econodual3 packaging. The high-integration-level and high-power-density module comprises a shell, two substrates arranged in the shell, a DC positive terminal, a DC negative terminal and an AC terminal. By overlapping the positive and negative terminals, the two connection regions on the substrate are adjacent and opposite in current, a proximity effect is generated to counteract a magnetic field, and stray inductance is reduced. And a wavy water channel is designed in the bottom plate, so that the cooling liquid is easier to generate vortex, and the heat dissipation efficiency is greatly improved. A driving signal loop is optimized to obtain low switching loss, heat resistance is reduced through copper paste sintering on the back faces of the chips and the substrate and DTS sintering connection on the front faces of the chips, parallel connection of 10 chips with the size of 6 mm * 7 mm and the total area of 420 mm < 2 > sic is achieved, a current sensor is further integrated in a shell, nanosecond-level overcurrent protection can be achieved, and the heat dissipation and control requirements of high-current and high-power-density application scenes are met. The overall structure is symmetrically designed, the high-voltage part is located on the outer side, the low-voltage signal control and acquisition part is located on the inner side, the wiring design of a PCB is facilitated, and the size of the module can be compatible and matched with Econodual3 packaging.
Owner:WUXI LEAPERS SEMICON CO LTD
A control method for a proportional solenoid valve for a hydraulic retarder
This invention discloses a control method for a proportional solenoid valve used in a hydraulic retarder, mainly addressing the technical problems of existing control methods, such as long pressure response time, large overshoot, and poor tracking performance. The control method includes: periodically acquiring the feedback pressure of the hydraulic retarder's working chamber and the input signal of the proportional solenoid valve; determining the current target pressure request state and calculating the current target current of the proportional solenoid valve based on the determination result; calculating the current duty cycle of the proportional solenoid valve; finally, superimposing chatter and outputting the final duty cycle, thereby achieving control of the proportional solenoid valve used in the hydraulic retarder. This control method can achieve precise control of the proportional solenoid valve and has the advantages of short response time, small overshoot, and good tracking performance.
Owner:SHAANXI FAST AUTO DRIVE GRP CO LTD
Biological sample collection information tracing device
PendingCN122501612AEliminate lageliminate time difference
The present application relates to the field of biological sample collection device, in particular to a biological sample collection information tracing device, comprising: a tube body for storing biological samples; a sealing tube cover detachably installed at the opening of the tube body; a trigger component arranged between the tube body and the sealing tube cover; a clock chip cooperating with the trigger component to determine the opening time of the sealing tube cover; a memory for storing the opening time detected by the trigger component; a near field communication module for transmitting the opening time stored in the memory to a reading device; a microcontroller for processing the state of the trigger component to determine whether the sealing tube cover is opened and transmitting the information of the opening time to the memory; a circuit board for connecting the trigger component, the clock chip, the memory, the near field communication module and the microcontroller. The present application realizes the digitization and objective tracing state of the biological sample as soon as it is collected from the outside.
Owner:TIANJIN FIRST CENT HOSPITAL
A Boundary Signal Control Method Based on Traffic Resilience Theory
ActiveCN116895153BImprove traffic efficiencymeet control requirementsDetection of traffic movementClimate change adaptationControl signalTraffic network
This invention discloses a boundary signal control method based on traffic elasticity theory, belonging to the fields of network elasticity science and urban traffic management. The method includes: acquiring the urban traffic network topology, traffic flow information, and signal control data; establishing a capacity multigraph of the traffic network based on its topology, defining a finite set of roads, and dividing it into multiple traffic sub-regions; constructing boundary signal phase models for the boundary regions of each traffic sub-region, and constructing a global signal phase matrix based on the signal phases at each node, thus establishing a control signal set; establishing elasticity state curves for each traffic sub-region and calculating the elasticity values of the traffic sub-regions; constructing an incremental model of the road network traffic flow system based on traffic flow information and elasticity values, establishing an output vector prediction expression, establishing an error prediction model, and designing a model predictive controller. This invention can improve the traffic efficiency of the road network and solve the problem of existing signal control schemes being insufficiently timely and effective.
Owner:DALIAN UNIV OF TECH
Anti-misoperation manual regulating valve
ActiveCN224214830UGuaranteed uptimeAvoid abnormal system trafficPlug valvesPreventing unauthorised/accidental actuationVALVE PORTPhysics
Owner:HEBEI TONGLI CONTROLLED VALVES MFG CO LTD
Level signal triggering module for use in fire fighting equipment
ActiveCN224401510USimple structurenovel structureElectronic switchingFire rescueMicrocontrollerControl engineering
The utility model discloses a kind of level signal triggering module in fire-fighting equipment, including edge detection module, single-chip microcontroller chip and relay control output module, edge detection module is used to detect the edge change of external level signal, and when detecting the falling edge of external level signal, it makes its signal output end open circuit, when detecting the rising edge of external level signal, generating trigger signal;The signal input end of single-chip microcontroller chip is connected with the signal output end of edge detection module, and single-chip microcontroller chip can be controlled according to trigger signal to make relay control output module be in conduction state.The structure of the level signal triggering module is simple, novel, reasonable, can be realized when level signal jumps output an adjustable short pulse trigger signal, and based on the short pulse trigger signal, the start of relay control output module is realized, meets the control requirement of complex control loop, improves the flexibility of electrical circuit design.
Owner:HONGEN FLUID TECH CO LTD