32 results about "Load sensing" patented technology

The application discloses a multi-stage priority liquid filling valve and belongs to the technical field of hydraulic control valves of engineering vehicles.The valve adopts a modularized superposition structure, is composed of a liquid filling valve part and a steering priority valve part which are superposed upward and downward, is communicated through three internal oil channels, integrates a main overflow valve, a steering priority valve, a liquid filling priority valve, a liquid filling pressure regulating valve, a throttling check valve and a shuttle valve, realizes three-stage hydraulic oil supply control of steering highest priority, brake liquid filling secondary priority and working system lowest priority, and is provided with the main overflow valve at an oil inlet to realize system overpressure protection.The problems of complex priority control, incompatible load sensing and constant flow systems of valve parts, need of external main overflow valve, low universality, high development and use costs and the like are solved when a single pump source supplies oil to three or more systems.

The present application relates to the technical field of vehicle body control, in particular to a vehicle body domain controller function migration method based on load sensing, comprising: collecting current load signals managed by the vehicle body domain controller and real-time function safety level information of the vehicle body domain controller; judging whether the current state of the vehicle body domain controller meets the trigger condition according to the current load signals and the corresponding real-time function safety level information; in response to the current state of the vehicle body domain controller meeting the trigger condition for function migration based on the current load signals, determining the computing power requirement threshold of the virtual domain controller currently required to be constructed according to the load type of the current load signals and the real-time function safety level information. The present application can dynamically adjust the function allocation of the controller according to the actual demand by real-time monitoring of the load signals and function safety level information of the vehicle body domain controller, and this flexibility enables the system to optimize resource use and improve overall performance under different load conditions.

The application discloses a high-load industrial equipment adaptive lubrication control system and method based on dynamic load sensing, and belongs to the technical field of industrial equipment control, comprising a data acquisition module, which is used for acquiring the wind intensity of the region where the target wind turbine is located, and acquiring associated data based on the wind intensity, wherein the associated data comprises the wind intensity driving the rotation of the blades of the target wind turbine; a data processing module, which is used for distinguishing the associated data, wherein the distinguishing manner comprises distinguishing according to the wind intensity acquired on different blades, and calculating the wind intensity difference driving the rotation of each blade based on the wind intensity acquired on different blades; meanwhile, the maximum wind force and the minimum wind force driving the rotation of the blades are acquired based on the wind intensity difference. The application can perceive and accurately judge the wind intensity and load change of the wind turbine blades, improve the lubrication efficiency and the protection level of the equipment, and improve the wind power generation efficiency and the overall economic benefit.

The present application relates to the technical field of safety monitoring and industrial automation, and discloses a silo safety monitoring method and system, which synchronously acquires coal pile surface point cloud, lateral pressure, vertical load and environmental data through the arrangement of a laser scanning unit, an annular pressure sensing belt, a weighing sensor and a temperature and humidity node; a high-precision three-dimensional morphology is reconstructed based on an adaptive grid refinement algorithm, and a joint representation model is constructed by fusing mechanical data; a stability discrimination function is established in combination with coal body physical parameters to identify the instability critical region; and through pattern matching with a historical stability morphology library, hierarchical early warning of abnormal working conditions such as suspended arch, bonding and blockage and generation of blockage removal strategies are realized. The present application constructs a joint representation model of coal pile three-dimensional morphology and mechanical state by fusing laser point cloud, pressure distribution and load sensing data, breaks through the limitation of traditional single-point material level measurement which cannot reflect the overall coal pile structure, and realizes high-precision measurement with a storage calculation error of less than 2%.

The application relates to the technical field of robots, and discloses a robot data transmission method, a robot and a medium, which comprise the following steps: configuring multiple virtual local area networks, performing robot data transmission network isolation based on the virtual local area networks; obtaining load data of the virtual local area networks, adjusting data transmission priorities of the virtual local area networks based on comparison results of the load data and preset load thresholds, adjusting bandwidths of the virtual local area networks based on the adjusted data transmission priorities and the load data; and performing data transmission based on the adjusted data transmission priorities and the adjusted bandwidths. The application judges network congestion states based on load sensing of each virtual local area network in the robot, improves transmission priorities of virtual local area networks in the congestion states, makes the virtual local area networks in the congestion states transmit preferentially, can effectively avoid delay and packet loss caused by network congestion, and guarantees real-time performance of robot control responses and reliability of action execution.

The application relates to a loading hydraulic system and method for lift and drag test of a stabilizer fin, belonging to the technical field of stabilizer fin test of a ship, which comprises a hydraulic unit, a lift loading oil cylinder and a drag loading oil cylinder; the hydraulic unit comprises a lift loading circuit and a drag loading circuit; the lift loading circuit comprises a lift loading pump with a load sensing function; the drag loading circuit comprises a drag loading pump; the lift loading pump and the drag loading pump rotate synchronously; two output ends of the lift loading circuit are connected with a rod cavity and a rodless cavity pipeline of the lift loading oil cylinder through a main pipeline; the lift loading oil cylinder provides lift for a fin shaft in a vertical upward posture of a piston rod; two output ends of the drag loading circuit are connected with a rod cavity and a rodless cavity pipeline of the drag loading oil cylinder; the drag loading oil cylinder provides drag for the fin shaft in a horizontal posture of a piston rod. The application can simultaneously carry out lift and drag simulation loading test on the stabilizer fin, can control the loading force in real time, and reduces the system energy consumption.

A self-propelled work vehicle includes a vehicle frame and a plurality of wheels or tracks supporting the vehicle frame from a ground surface. A battery provides electrical power to an electric motor. A hydraulic pump provides hydraulic fluid to a hydraulic system. A steering valve directs hydraulic fluid from the hydraulic system to a steering actuator. A steering priority valve prioritizes supply of hydraulic fluid from the hydraulic system to the steering valve. A proportional relief valve provides a load sense signal to the load sense port of the steering priority valve which shifts the steering priority spool to build hydraulic system pressure. A controller is configured to detect whether the battery is able to be further charged and to control operation of the proportional relief valve to control a hydraulic braking function provided by the steering priority valve.

A downforce load sensor for a planter row unit includes a load sensing connector rod coupled with a depth selector of the planter row unit. The load sensing connector rod is disposed to receive a load applied by a stop member supported on the row unit frame, the stop member being in abutment with an abutment member of a gauge wheel arm of a furrow opening assembly of the planter row unit. The load sensing connector rod generating load signals corresponding to a downforce applied to the soil by the gauge wheels of the furrow opening system of the planter row unit.

The utility model relates to vehicle hydraulic transmission and control technical field, concretely relates to the control drive system of fuzzy output signal, be applied to the differentiation control of front and rear wheel drive motor in the process of large -scale vehicle turning, the system includes pump control system, flow pressure control system, wheel system and oil return control system, the pump control system includes main pump, oil pump control cylinder, flow pressure control valve and throttle valve, the swash plate on main pump links with the piston rod on oil pump control cylinder, and oil pump control cylinder has A mouth and B mouth, flow pressure control valve has C mouth, D mouth, P mouth and the Z mouth and spring end K mouth located on both sides, the utility model discloses, through load response feedback oil circuit (LS) feedback mechanism, realize the adaptive flow distribution of front and rear wheel drive motor, solve the problem that the front and rear wheel speed does not match in the process of large -scale vehicle turning, and the steering accuracy, stability and safety are improved.

A load sensing device that measures force applied to move two alike magnetic poles together. The device can be a human Interface Device for operating computers or machinery by means of a bi-directiona

The application discloses a load-sensitive hydraulic system and a load-sensitive hydraulic system control method. The load-sensitive hydraulic system comprises a load-sensitive pump, a first valve, a second valve, a first actuating element, a second actuating element, a proportional valve and a selector valve. The first valve is a load-sensitive valve, and the second valve is an on-off directional valve. The first actuating element and the second actuating element are connected to a pump outlet of the load-sensitive pump through the first valve and the second valve respectively. An inductive oil port of the load-sensitive pump is in communication with a feedback port of the first valve and a proportional valve inlet of the proportional valve through the selector valve. The proportional valve inlet is connected to an oil circuit between the pump outlet and the second valve. A proportional valve outlet of the proportional valve is connected to an oil tank, and the opening degree of the proportional valve is adjustable. In the load-sensitive hydraulic system and the load-sensitive hydraulic system control method, the opening degree of the proportional valve is adjustable, so that the displacement of the load-sensitive pump can be adjusted through a simple structure, and the structure is simple and the cost is low.

This invention proposes a method and system for monitoring abnormal events in cargo transportation based on load sensing and visual recognition. The method includes: acquiring information about the planned operation area, collecting cargo weight data in real time and continuously monitoring it; when a weight change exceeding a threshold is detected and occurs outside the planned operation area, triggering an onboard intelligent camera to perform visual recognition analysis; using a lightweight target detection model deployed at the edge to identify whether preset abnormal behavior characteristics exist; if abnormal behavior is confirmed, automatically recording video clips and packaging them with time, location, and weight change data to generate structured evidence and pushing it to the cloud platform, and performing graded handling responses according to the severity of the anomaly. This invention achieves full-link automation from anomaly perception, cross-verification, evidence locking to closed-loop handling through a time-series linkage mechanism of load anomaly triggering visual verification, significantly reducing the false alarm rate and improving the level of safety management of cargo in transit.

The present application discloses a power apparatus suitable for multiple types of hydraulic systems, engineering machinery, and a test device. The power apparatus suitable for multiple types of hydraulic systems comprises: a working pump (1); a load sensing valve (11) and an electro-proportional displacement regulating valve (14), which are arranged in a displacement regulating control oil passage of the working pump (1) and are used for regulating the displacement of the working pump (1); and a mode switching valve (15), which is arranged in a load feedback oil passage LS of the working pump (1) and is used for switching the working pump to work in a load sensing control mode or an electro-proportional control mode. The present application can meet requirements of various working scenarios for hydraulic systems and reduce operation costs of production enterprises and users.

The application discloses a hydraulic system combined with load-sensitive control and constant-pressure control, and an arch anchor operation trolley, and the switchable feedback oil circuit between a first main pump and a plurality of operation control modules is constructed through one electric proportional overflow valve, three two-position four-way electromagnetic valves and a plurality of shuttle valves, and only the on-off states of the electric proportional overflow valve and the three two-position four-way electromagnetic valves need to be controlled, so that the first main pump can be switched between the load-sensitive control mode and the constant-pressure control mode. When the first main pump works in the constant-pressure control mode, stable pressure and flow output can be provided for the arch rod operation, and the left and right arms can simultaneously perform arch installation operation; when the first main pump works in the load-sensitive mode, the pressure and flow of the first main pump can be automatically adjusted according to the load pressure, so that the energy consumption is the lowest when the arm frame moves and the arch operation is performed; and therefore, different control requirements of three operation modes, i.e. the arch rod operation, the arch operation and the arch rod and arch operation simultaneously, can be met.

The present application relates to the technical field of transport robot, and particularly relates to a high-efficiency loading and unloading handling robot, which comprises a base body, a hydraulic lifting frame, a mounting frame, a fork, a goods stacking module, a load sensing module, a limiting module and a contact positioning module. In the transportation process, the limiting module is linked through a supporting plate, a limiting piece and a linkage rod, and the limiting piece is automatically lifted in the load state to stably limit the goods in the front-back direction, so as to avoid displacement caused by bumping. When unloading, the contact positioning module is matched with the sensing unit through the contact head, and the positioning signal is triggered when the front end of the fork contacts the placed goods or the boundary, so that the consistency of the unloading position is accurately controlled, and the landing gap of the standardized goods is standardized. After the goods are landed, the goods stacking module drives the pushing plate to perform double-direction extrusion and pushing along the preset track, so that the adjacent goods are close to each other, the gap is eliminated, and the close arrangement is realized.

A hydraulic steering arrangement (1) is disclosed. The hydraulic steering arrangement (1) includes a supply port arrangement (P, T) having a pressure port (P) and a tank port (T), a working port arrangement having two working ports (L, R), a main flow path (2) having a main orifice (A1) and at least one further orifice (A2, A3, A4) downstream the main orifice (A1), the main flow path (2) being arranged between the pressure port (P) and the working port arrangement (L, R), a return flow path (4) arranged between the working port arrangement (L, R) and the tank port (T), a measuring motor (3), an amplification flow path (6) having an amplification orifice (AU) and being arranged between the pressure port (P) and the working port arrangement (L, R), and an adjustable pressure source (9) connected to the pressure port (P) and having a load sensing port (18), wherein a main drain orifice (Adrain) is connected between the main flow path (2) down-stream the main orifice (A1) and the return flow path (4). Such a steering arrangement should have the possibility of dynamic steering with a simple construction. To this end a dynamic main orifice (A1-dyn) is connected between the load sensing port (18) and the main flow path (2) downstream the main orifice (A1), and a dynamic drain orifice (Adrain-dyn) is connected between the load sensing port (18) and the return flow path (4), which dynamic drain orifice (Adrain-dyn) is open when the dynamic main orifice (A1-dyn) is closed.

An actuator for an electric brake of a vehicle having a caliper assembly driven by a motor includes a gear train for transferring torque from the motor to the caliper assembly to brake the vehicle. The gear train has an input gear and a sun gear connected to one another. A load sensing device senses relative rotation between the sun gear and the input gear in response to rotation of the motor during a braking operation. A controller is connected to the load sensing device and configured to adjust the torque applied to the gear train in response to receiving signals from the load sensing device indicative of the relative rotation.

This utility model relates to a load-bearing sensing device, comprising: a base, a movable component, a sensor, and an elastic component. The movable component is configured to support a load-bearing carrier and is movable relative to the base, moving closer to or away from the base. The sensor is connected to the base or the movable component and is located on the movement trajectory of the movable component. The elastic component is disposed on the base and connected to the movable component. The load-bearing sensing device has a triggered state and a deactivated state. When there is a load on the load-bearing carrier, and the weight of the load is sufficient to deform the elastic component, driving the movable component to move closer to the base and triggering the sensor, the load-bearing sensing device is in the triggered state. When there is no load on the load-bearing carrier, the deformation of the elastic component returns to normal, driving the movable component to move away from the base and preventing the sensor from being triggered, the load-bearing sensing device is in the deactivated state.

The application relates to a distributed electric drive system with a load sensing function, a method, a storage medium and a vehicle. The system mainly comprises an Ethernet, a central calculator, a transmission mechanism system, a drive motor and a power electronic system. The power electronic system comprises a motor control unit and a load sensing unit. The motor control unit comprises a motor control signal acquisition module and a micro-control unit. The load sensing unit comprises a load sensing signal acquisition module and a signal preprocessor. The load sensing signal acquisition module mainly comprises a tire pressure sensor, a wheel speed sensor, a six-component sensor, a displacement sensor and a temperature sensor. The motor control unit is fixedly connected with a drive motor end cover through a PCB locking screw, and the load sensing unit is fixedly connected with the drive motor end cover through a PCB locking screw. Compared with the prior art, the application greatly improves the wheel load sensing and acquisition capability of vehicle running state information and has other advantages.

The invention relates to a control system comprising a hydraulic distributor and a hydraulic pump; the hydraulic pump supplies the hydraulic distributor via a first supply line; the hydraulic pump is driven by a thermal engine; the control system includes a computer; the control system further includes an intermediate supply line and a load sensing line branching off from the intermediate supply line; the distributor includes an open position and a closed position; pressure from the load sensing line controls a resisting torque of the hydraulic pump; the computer detects a risk of engine stalling based on the engine speed of the thermal engine, and in response, commands a movement of the hydraulic distributor towards the closed position;The movement of the hydraulic distributor towards the closed position results in a drop in pressure in the load sensing line. Figure for the abbreviation: 2;

Control valve with a front port (P), a tank port (T), an intermediate control port (A), and a control pressure chamber (17) opposite the port (P), wherein a control piston (8) has a first control collar (10) that controls a connection between the front port (P) and the control port (A), and wherein the control piston (8) has a second control collar (12) that controls a connection between the control port (A) and the tank port (T), wherein a control spring (16) is accommodated in the control pressure chamber (17), wherein the control valve is intended for use with an adjustable hydrostatic piston pump, wherein the front port (P) can be pressurized with the pump pressure, wherein the control port (A) can be connected to an adjustment device of the piston pump, and wherein the control pressure chamber (17) can be pressurized with a load-sensing control pressure.which corresponds to or is derived from the highest load pressure of the consumers supplied by the piston pump, characterized in that the control piston (8) has a guide collar (28) in the region of the end-face connection (P), wherein the control piston (8) has at least one recess in the region of the guide collar (28) via which the end-face connection (P) is connected to the first control collar (10), wherein the recess is a concentric bore (30) in the control piston (8) which is connected to at least one radial bore (32).

This invention discloses a potential energy recovery and storage system for large-scale lifting equipment and its operating method, comprising: a potential energy conversion mechanism, including a heavy-duty hydraulic cylinder and a load-sensing proportional valve; a multi-stage pressure accumulator group, including a low-pressure accumulator, a medium-pressure accumulator, and a high-pressure accumulator connected in sequence; a foam-filled near-isothermal compression unit, including a shell, a bladder, and a composite material of gradient functional foam and phase change microcapsules filled within the effective volume of the bladder; and an intelligent control unit, including a hardware processor and a memory storing a computer program, to realize PINN anti-sway control and DRL energy management functions. The PINN anti-sway controller embeds the load swing dynamics equation as a physical constraint into a neural network architecture. This invention improves the efficiency of the accumulator body through a three-stage pressure accumulator architecture and near-isothermal compression technology; the three-layer synergistic design of gradient functional foam-phase change composite material extends the service life of the equipment.

This invention relates to the field of elevator equipment technology, specifically to a vibration reduction and noise reduction device for elevators. The device includes an elastic support assembly, a limiting assembly, a load sensing assembly, a controller, and a magnetorheological damping assembly. The elastic support assembly flexibly supports the vertical load of the car to cut off the sound bridge path and reduce radiated noise. The limiting assembly strictly constrains the horizontal floating of the car in its length and width directions to prevent disorderly swaying. The load sensing assembly acquires the car load in real time and dynamically adjusts the current input to the magnetorheological damping assembly through the controller, thereby changing the damping force of the magnetorheological fluid. This invention adaptively adjusts the damping based on the real-time load, achieving intelligent control by reducing damping to filter high-frequency micro-vibrations under light loads and increasing damping to strongly restrain inertia under heavy loads. This solves the technical problem of existing technologies being unable to simultaneously achieve comfort under light loads and stability under heavy loads.

The present invention relates to an automatic leveling system for the top section of an elevator car for upper maintenance work. The automatic leveling system according to the present invention includes: a memory storing elevator car height information (H_car), which is the physical height specification of the elevator car, and landing floor position information (P_floor) for each floor; a car top access switch disposed inside an emergency switch box provided in the operation control panel inside the elevator car to generate a signal to enter a leveling operation mode; a general operation input unit that receives administrator authentication and target floor information; and a load sensing unit that measures the passenger load inside the elevator car. When the disembarkation of a worker is confirmed through the load sensing unit, the control unit closes the door, calculates a leveling target position (P_target) by subtracting the elevator car height information (H_car) from the landing floor position information (P_floor) of the target floor, and controls the drive unit to move the elevator car to that position, thereby automatically and precisely aligning the top section of the elevator car with the landing floor.

This invention relates to the field of feed processing technology and discloses a dual-line layer hen feed pelleting and crushing device, including a hammer mill and two buffer bins at its inlet. The buffer bins have a feeding assembly at their output end, and the device also includes an adaptive feed flow rate control system. This system includes a load sensing module that calculates the load coefficient based on current, voltage, and power factor; a raw material property analysis module that calculates the raw material characteristic coefficient based on moisture content and bulk density; a process suitability assessment module that calculates the process matching degree based on the average output particle size, the proportion of excessively coarse particles, the load coefficient, and the raw material characteristic coefficient; an operating status monitoring module that calculates the equipment health coefficient based on vibration intensity and material level; and a multi-source fusion decision module that calculates the target feed flow rate based on the baseline feed flow rate, process matching degree, and equipment health coefficient. This invention achieves multi-dimensional intelligent control of the feed flow rate, improving crushing quality and operational stability.

The present application relates to elevator equipment technical field, specifically is related to a kind of damping and noise reduction device for elevator, the device includes elastic support component, limiting component, load sensing component, controller and magnetic flow damping component.Elastic support component is used to flexibly carry car vertical load to cut off sound bridge path, reduce radiated noise;Limiting component is used to strictly constrain the horizontal floatation of car in its length-width direction, prevent car disorder from shaking;Load sensing component is used to obtain car load in real time, and the current input to magnetic flow damping component is dynamically adjusted by controller, and then the damping force of magneto-rheological fluid is changed.The present application adjusts damping according to real-time load, realizes the intelligent control of reducing damping to filter high-frequency micro-vibration when light load and increasing damping to strongly restrain inertia when heavy load, solves the technical problem that existing technology cannot consider light load comfort and heavy load stability.