713results about "Electric propulsion" patented technology

The invention provides a high-speed magnetic levitation suspension system control method and system based on edge calculation and Transform prediction, and the method comprises the steps: constructing a Transform prediction model with a space-time attention mechanism and an autoregression mechanism based on obtained local low-delay calculation resources and train real-time sensing data, and deploying the Transform prediction model in a vehicle-mounted edge calculation unit; performing short-term high-precision prediction on the gap, the acceleration and the disturbance trend at a plurality of sampling moments in the future through a Transform prediction model to obtain a prediction result; processing actuator current saturation and gap safety threshold hard constraints in a limited prediction domain by using a model prediction controller, and solving an optimization control sequence in real time in combination with a prediction result; and overlapping a control barrier function as a safety filter of the model prediction controller, correcting the optimized control sequence to obtain an optimal control sequence, and controlling the high-speed magnetic suspension system. According to the method, the cloud communication delay and jitter are reduced, and the robustness and security of the system under uncertain disturbance are improved.

The invention discloses a suspension control fault detection and recovery method and device for a maglev train and a medium, and relates to the field of maglev trains, and the method comprises the following steps: S1, constructing a linearized suspension system model; s2, reconstructing a state vector, and generating a suspension gap estimation value; s3, constructing a health probe set, and executing a signal selection strategy; s4, detecting a slow change fault based on the statistical accumulation characteristic of the residual error, and outputting a slow change fault detection result; s5, monitoring the variation trend of the residual error, and triggering a reset mechanism to clear historical accumulated data when a reset condition is met; and S6, generating a final fault mark, and forcibly updating the fault mark to a normal state if a reset mechanism is triggered. According to the hierarchical collaborative decision-making architecture based on the maglev train lap joint structure dynamic model, the condition of performance degradation or failure does not occur in a real system by the algorithm, so that the engineering applicability and reliability of fault diagnosis are improved.

The invention provides a path quadratic planning method and system in an extreme endurance mode and an electric vehicle, and the method specifically comprises the following steps: after the vehicle enters the extreme endurance mode, turning off the comfort function of the vehicle, finding a minimum energy consumption driving path from a current position to a target position, and starting the driving path from the current position to the target position; and taking the path with the minimum energy consumption as a driving path from the current position to the target position. When the endurance mileage of the vehicle is low, the extreme endurance mode is selected to be started according to the condition that the endurance mileage is insufficient, and in the extreme endurance mode, the driving path with the minimum energy consumption between the current position and the final position or between the current position and the charging station is selected, so that the trouble of a user to the endurance mileage of the vehicle is relieved as much as possible.

The invention discloses an energy control method and device for a flying vehicle, electronic equipment and a readable storage medium. A solar cell layer, a heat insulation layer and a thermoelectric power generation layer are sequentially integrated on the surface of the flying vehicle from top to bottom, and the method comprises the steps of obtaining first electric energy converted by the solar cell layer in response to the fact that the flying vehicle is located in a light environment, and obtaining second electric energy converted by the heat insulation layer in response to the fact that the temperature difference between the flying vehicle and the external environment is larger than a first preset temperature difference threshold value; acquiring second electric energy converted by the thermoelectric power generation layer; performing voltage conversion on the first electric energy to obtain first target electric energy, and performing voltage conversion on the second electric energy to obtain second target electric energy; charging a battery of the flying vehicle based on the first target electric energy and the second target electric energy; the electrical energy stored in the battery is distributed to the electrical load based on an energy consumption demand of the electrical load of the flying vehicle. The technical problem that the energy source of the flying vehicle is single is solved.

Embodiments of the present disclosure relate to sustainable movement planning for electromagnetic transport systems. In order to provide a method for continuously operating an electromagnetic transport system (1) for moving at least one mover (3), a first maximum (amax1, vmax1) of a first trajectory (t1) of at least one amount of movement (x, v, a) of the mover (3) is determined, and a second maximum (amax2, vmax2) of a second trajectory (t2) of the at least one amount of movement (x, v, a) of the mover (3) is determined. If the first maximum value (amax1, vmax1) is less than or equal to the second maximum value (amax2, vmax2), the first trajectory (t1) is selected as a target trajectory (t *), and if the second maximum value (amax2, vmax2) is less than the first maximum value (amax1, vmax1), the second trajectory (t2) is selected as the target trajectory (t *), and then the mover (3) is moved according to the target trajectory (t *).

The invention discloses a new energy automobile endurance mileage increasing system and method based on multi-mode energy collaborative management. The system comprises a multi-mode energy input module which is used for converting solar energy into direct current electric energy through a photovoltaic array and integrating power battery energy and hub motor kinetic energy recovery energy; the predictive management module is used for acquiring front road condition information through a V2X technology and predicting an energy consumption curve based on a deep learning model; the dynamic weight distribution module is used for calculating photovoltaic, battery and kinetic energy recovery weight coefficients through a dynamic weight distribution algorithm according to the real-time vehicle environment information and the prediction result; and the energy distribution control module is used for carrying out weighted distribution on the multi-modal energy based on the weight coefficient and outputting total available energy and a control signal so as to drive electric equipment or charge a battery. According to the invention, the problem of dynamic energy distribution during multi-energy coupling is solved, and the purposes of improving the endurance of urban roads, improving the endurance of expressways, reducing the increment cost of the system and being compatible with a 400V / 800V platform are achieved.

A three-rail power supply system includes a power supply having positive, negative, and neutral terminals, a rail system having a power supply end and a termination end, and an asymmetric resistor network. The rail system includes a positive rail, a negative rail, and a ground rail coupled to the positive terminal, the negative terminal, and the neutral terminal, respectively. The negative rail is disposed parallel to the positive rail. The ground rail is disposed in parallel to, and between, the positive rail and the negative rail, and is electrically grounded at a plurality of intervals between the power supply end and termination end. The asymmetric resistor network includes two pairs of resistors asymmetrically coupled to the rail system at the power supply end and termination end, and is configured to limit a fault current through a faulty connection in response the positive, negative, and / or ground rails experiencing the faulty connection.

The utility model belongs to the technical field of energy storage equipment, and discloses an energy storage device, which comprises an energy storage host, a walking wheel and a paddle assembly, the energy storage host is provided with a discharge port, the walking wheel has a retraction state and an extension state, in the retraction state, the walking wheel partially retracts into the energy storage host, in the extension state, the walking wheel extends out of the energy storage host, and in the extension state, the paddle assembly extends out of the energy storage host. The paddle assembly is arranged in the energy storage host and can drive the energy storage host to walk, the paddle assembly has a folded state and an unfolded state, in the folded state, the paddle assembly is arranged in the extending direction of the side wall of the energy storage host, and in the unfolded state, the paddle assembly is unfolded relative to the energy storage host and can drive the energy storage device to fly. The energy storage device is provided with the retractable walking wheels and the foldable paddle assemblies, the land walking and low-altitude flying functions are achieved, meanwhile, the storage size is small, and a user can conveniently use the energy storage device.

The present invention is in the field of a National Individual Floating Transportation Infrastructure (NIfTI) wherein floating vehicles can travel by magnetic levitation and propagation. The vehicles can travel at a controllable height above the existing, albeit modified, road infrastructure and at relatively high speeds.

The invention discloses a maglev engineering vehicle, which relates to the technical field of maglev vehicles, and comprises a first suspension frame unit, a second suspension frame unit and a third suspension frame unit, fixed sliding tables are arranged between the first suspension frame unit and the second suspension frame unit and between the first suspension frame unit and the third suspension frame unit, and the fixed sliding tables are fixed to a vehicle body; the transverse stabilizing mechanism comprises a first hydraulic cylinder and a second hydraulic cylinder, when the transverse stabilizing mechanism passes through a bent road section, the first hydraulic cylinder and the second hydraulic cylinder are disconnected to relieve transverse constraint, and the second suspension frame unit and the movable sliding table on the corresponding side of the second suspension frame unit as well as the third suspension frame unit and the movable sliding table on the corresponding side of the third suspension frame unit can rotate around the rotating center of the fixed sliding table on the corresponding side. When passing through a straight road section, the first hydraulic cylinder communicates with the second hydraulic cylinder to achieve transverse constraint, and the rigidity between the vehicle body and the suspension frame unit is guaranteed. According to the maglev engineering vehicle, the curve passing capacity and the curve passing balance stability of the maglev engineering vehicle can be improved.

The invention relates to a method (200) for operating a linear transport system (100), wherein the method comprises; Controlling a first energy transfer coil (123) of a motor module (117) of the stationary unit (103) with an operating voltage (U) to generate an alternating magnetic field by a control unit (119) of the linear transport system (100) in a control step (201), wherein a synchronization signal (S) is integrated into the operating voltage (U); Reading out a voltage (U_ind) induced by the alternating magnetic field in the second energy transfer coil (125) of the at least one moving unit (101) and detecting the synchronization signal (S) by a subcontrol unit (121) of the moving unit (101) in a readout step (203); and Performing a synchronization between the control unit (119) of the linear transport system (100) and the sub-control unit (121) of the moving unit (101) based on the synchronization signal (S) by the sub-control unit (121) of the moving unit (101) in a synchronization step (205). The invention further relates to a linear transport system (100).

A fleet and trolley system, a first method of charging a work machine, and a second method of charging a fleet of work machines are disclosed. The fleet and trolley system includes a trolley network, at least one zero-emission work machine, and a controller. The controller manages a scheduled usage of the trolley network, a power draw, and a distribution of the power draw by the work machine. The first method includes monitoring states of the work machine, scheduling a usage of the trolley network, and supplying electric power to the work machine. The second method includes monitoring states of a fleet, monitoring states of the trolley network, scheduling usages of the trolley network, and supplying electric power to one or more machines of the fleet. Advantageously, the disclosed system and methods may improve an efficiency, productivity, and longevity of a fleet of zero-emission work machines.

The invention discloses a self-energized magneto-rheological vibration reduction system and method suitable for transverse and vertical coupling vibration of a high-speed normal-conducting maglev train, and relates to the field of magnetic suspension. The suspension surface current collection coil and the guide surface current collection coil are used for inducing magnetic field changes and generating induced electromotive force; the energy management system is used for rectifying, boosting and stabilizing the induced electromotive force and storing electric energy; the acceleration detection system is used for detecting transverse and vertical vibration accelerations of the vehicle body; the control system is used for outputting control current according to the vibration signal; and the transverse magneto-rheological damper and the vertical magneto-rheological damper are used for outputting variable damping force according to the control current and restraining transverse and vertical vibration of the vehicle body. According to the method, effective suppression and energy recovery of transverse and vertical vibration are realized without depending on current frequency division processing, so that the decoupling control problem caused by active control noise in a normal-conducting magnetic levitation system is solved.

The utility model discloses a continuous conductor plate for a magnetic suspension automobile, which comprises a first conductor plate and a second conductor plate which are connected with each other, the end part of the first conductor plate is provided with a first splicing part, the end part of the second conductor plate is provided with a second splicing part, and the shapes of the first splicing part and the second splicing part are complementary. And the first splicing part and the second splicing part are spliced together to form a continuous conductor plate. When the magnetic wheel of the magnetic suspension automobile passes through the gap between the conductor plates, the first conductor plate provides an eddy current field before passing through the gap, and the second conductor plate provides an eddy current field after passing through the gap, so that the continuity of eddy current is ensured, and the operation efficiency of the whole system of the magnetic suspension automobile and the conductor plates is improved.

The invention relates to a computer-implemented method (200) for operating a linear transport system (100) with a control unit (109) and a stationary unit (103) with a guide rail (105) for guiding a movable unit (101) and a plurality of motor modules (117) arranged along the guide rail (105), wherein the method (200) comprises: Identifying the motor modules (117) by the control unit (109) in a motor module identification step (201); Determining a motor module sequence of the motor modules (117) by the control unit (109) in a motor module sequence determination step (203); Determining an assembly assignment based on assembly identification information (145) provided by the motor modules (117) by the control unit (109) in an assembly assignment step (205); Determining an assembly sequence of the assemblies (121) based on the motor module sequence and the assembly assignment by the control unit (109) in an assembly sequence determination step (207); and Determining a topology of the motor modules (117) of the stationary unit (103) by the control unit (109) based on the assembly sequence in a topology determination step (209). The invention further relates to a linear transport system (100).

The utility model discloses a photovoltaic self-charging electric golf cart, and relates to the technical field of electric golf carts. The utility model relates to a photovoltaic self-charging movable golf cart which comprises a cart body, a ceiling fixed to the upper portion of the cart body and a photovoltaic power generation assembly installed in a horizontal area of the ceiling. The photovoltaic power generation assembly comprises a photovoltaic panel embedded in the top of the ceiling, a current controller connected with the photovoltaic panel through a wire, and a storage battery pack forming a closed-loop charging loop with the current controller, and the storage battery pack is located in the vehicle body. The photovoltaic power generation assembly is provided with a control system in a matched mode, and the control system is integrated in the vehicle body. According to the utility model, the photovoltaic panel is arranged at the top of the ceiling, so that the energy self-sufficiency of the vehicle is improved, the vehicle can be charged by solar energy in daily use, the dependence on an external power supply is reduced, and the operation cost is reduced; and the control system is integrated in the vehicle body, so that the running state of the vehicle is comprehensively monitored, and the intelligent management level of the vehicle is improved.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

The bogie comprises a bearing frame and a suspension device, the bearing frame is of a hollow structure so that an installation area can be formed on the inner side of the bearing frame, and a permanent magnet installation base and a linear motor installation base are arranged in the installation area; the permanent magnet mounting seats are arranged on the two sides of the top wall of the mounting area, and permanent magnets are arranged on the permanent magnet mounting seats so as to generate magnetic levitation force with magnets in the track beam; the linear motor mounting seat is arranged at the bottom of the permanent magnet mounting seat, the linear motor mounting seat and the permanent magnet mounting seat are arranged at an interval, a linear motor is fixedly arranged on the linear motor mounting seat, and the linear motor and the permanent magnet are symmetrically arranged about the symmetric line of the mounting area; and the suspension device is rotationally arranged at the bottom of the bearing frame. The mounting area is arranged in the bearing frame to mount the permanent magnet and the linear motor, so that the distance between the permanent magnet and the linear motor is reduced, the magnetic levitation force variation of the position of the permanent magnet during driving is reduced, the inclination angle of the bogie is reduced, and the running stability of a vehicle is improved.

The utility model discloses a suspension type maglev vehicle and a suspension framework thereof, and relates to the technical field of rail transit, the suspension framework of the suspension type maglev vehicle comprises a first longitudinal beam and a second longitudinal beam, the second longitudinal beam is located below the first longitudinal beam, and the two ends of the first longitudinal beam are connected with the two ends of the second longitudinal beam; the middle part of the first longitudinal beam is connected with the middle part of the second longitudinal beam, the first longitudinal beam and the second longitudinal beam are integrally shaped like a Chinese character'ri ', the first longitudinal beam and the second longitudinal beam are provided with mounting structures, and the mounting structures are used for connecting components of the electromagnetic suspension walking part. According to the suspension type maglev vehicle suspension framework, through the adoption of the suspension framework with the structural design shaped like the Chinese character'ri ', a plurality of components of an electromagnetic suspension walking part are effectively and reasonably integrated in a limited space, meanwhile, the bearing capacity and stability of the framework are guaranteed, and the problems that in the prior art, a framework structure is not compact enough, and the occupied space is large are solved; and the overall performance and the operation efficiency of the vehicle are improved.

A method is provided for transferring energy from a stationary unit to a movable unit of a linear transport system. The system includes a guide rail for guiding the movable unit, a plurality of stationary units, a controller, and a linear motor for driving the movable unit along the guide rail. The linear motor includes a stator and a rotor. The stator comprises the stationary units, each having one or more drive coils. The rotor is arranged on the movable unit, and has one or a more magnets. In addition, the stationary units each have one or more energy-transmitting coils, and the movable unit has at least one energy-receiving coil. The controller determines position data for the energy-receiving coil, selects at least one energy-transmitting coil based on the position data, and outputs a control signal to the stationary unit, with identification information for identifying the energy-transmitting coil.

The invention relates to the technical field of maglev train suspension control, in particular to a flexible suspension module control method and system for a maglev train, which can remarkably improve the tracking precision, response speed and anti-interference capability of a suspension gap, effectively suppress flexible vibration and ensure high performance and high reliability of a suspension system. The invention provides a flexible suspension module control method for a maglev train. The flexible suspension module control method comprises the following steps: S1, constructing a suspension module coupling dynamic model comprising a flexible electromagnet and a flexible F rail; s2, designing a super-spiral sliding mode-radial basis function neural network adaptive controller; s3, performing anti-saturation correction on the output of the controller; and S4, converting the corrected control quantity into expected current, and controlling a power switch to drive an electromagnet to execute suspension control through a driving circuit.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

The invention provides a green energy self-power-generation endurance system of a carrier, which comprises a wind power generation assembly, a double-sided photovoltaic panel assembly, a double-sided photovoltaic soft curtain assembly and an air power generation assembly, which can utilize respective advantages to combine or independently carry out green energy power generation. The wind power generation assembly comprises a main air duct and a plurality of one-shaft double-body generators. The main air duct is provided with a closed cabin; a plurality of one-shaft double-body generators are arranged in the main air duct and the closed cabin in a matrix manner; each one-shaft double-body generator comprises a wind power blade arranged on a transmission shaft; the transmission shaft is located in the main air duct, and the two ends of the transmission shaft are rotatably connected to the wind driven generator in the closed cabin. According to the implementation mode, wind resistance airflow generated by driving of the carrier acts on the one-shaft double-body generator through the main air duct, so that each transmission shaft drives the two wind driven generators to synchronously generate electricity. The system has an extremely wide application range and can provide green electric energy for corresponding scenes.

A magnified linear power generation system includes a vehicle with a tractor, or other tow vehicle, and a trailer, the trailer being separable from the tractor, the vehicle including at least one force receiving surface, the force receiving surface receiving input forces from the ground as the vehicle moves across the ground. A power generator is mounted to the trailer, the power generator including a stator and a mover. A mechanical magnification component is coupled between the power generator and the vehicle, the mechanical magnification component including a first hydraulic cylinder connected to the force receiving surface and a second hydraulic cylinder connected to the power generator, the first hydraulic cylinder having a first cylinder diameter, the second hydraulic cylinder having a second cylinder diameter smaller than the first cylinder diameter, wherein the first hydraulic cylinder is connected to the second hydraulic cylinder by a hydraulic line extending between the tractor and the trailer.

The invention relates to a wireless power supply system for intelligently inhibiting dynamic disturbance magnetic resonance. The wireless power supply system comprises a vehicle-mounted subsystem and a ground subsystem. The vehicle-mounted subsystem collects motion, position and task data by using a multi-dimensional state real-time sensing module; the dynamic disturbance prediction module predicts future space displacement and power consumption based on a machine learning model and generates future disturbance information. And the vehicle-mounted end communication module sends the information to a ground subsystem. After the ground subsystem receives the signal, a feedforward compensation decision module determines a target transmitting frequency and equivalent impedance; the power output and feed-forward execution module adjusts parameters in advance, so that a system working point is optimal before disturbance occurs. According to the method, disturbance caused by dynamic movement and load change of the mobile equipment can be actively predicted and compensated in advance, so that the electric energy transmission efficiency and the system stability are always kept at the optimal level under the continuous dynamic working condition.

A vehicle according to one embodiment of the present disclosure comprises: a power supply circuit capable of supplying electrical power to each of a plurality of external devices via a plurality of power supply terminals, and capable of detecting the supplied current to each of the plurality of external devices; and a control circuit capable of, if the total value of the supplied currents exceeds a threshold value, stopping the supply of electrical power via the power supply terminal which has the lowest priority among the plurality of power supply terminals, on the basis of a predetermined priority order.

The invention discloses a high-speed maglev train suspension constraint control method for coping with long-wave oscillation of a track beam, and belongs to the field of maglev track traffic. The method comprises the following steps: dynamically expanding high-speed maglev train model prediction suspension control under asymmetric preset performance constraints, and coping with safety constraint control of accurate suspension of the high-speed maglev train with long-wave oscillation of a track beam: establishing a track model of the long-wave oscillation of the track beam; designing the precise suspension dynamic expansion asymmetric preset performance constraint of the high-speed maglev train according to the long-wave oscillation information of the track beam; designing a high-speed maglev train suspension air gap mathematical model containing track beam long-wave oscillation information; obtaining a state space expression based on a reconstruction error according to the dynamic expansion asymmetric preset performance constraint and the conversion error; a prediction model is obtained through the expression, an optimal control problem is designed, and an optimal solution is solved; on the premise that the track beam oscillation reference air gap tracking precision is improved, suspension deadlock of the high-speed maglev train under long-wave oscillation of the track beam is avoided, and it is ensured that the high-speed maglev train runs safely in a small suspension gap with low power consumption under long-wave oscillation of the track beam.

In order to provide a method for sustainably operating an electromagnetic transport system to move at least one mover, a first maximum value of a first trajectory for at least one movement quantity of the mover is determined. Additionally, a second maximum value of a second trajectory for said at least one movement quantity of the mover is determined. The first trajectory is selected as a target trajectory if the first maximum value is equal to or smaller than the second maximum value. The second trajectory is selected as a target trajectory, if the second maximum value is smaller than the first maximum value. The mover is moved in accordance with said target trajectory.

Current directional device (100), containing: a power semiconductor module (300U, 300V, 300W) containing a power semiconductor element designed to convert direct current into alternating current; a first flow path forming body (110) which forms a first flow path (112a) to allow a cooling refrigerant to flow through it; a second flow path forming body (401) which forms a housing space (402) to allow a cooling refrigerant to flow through it; a first base plate (400) for attaching the second flow path forming body (401) to it; a driver circuit board (200) on which a driver circuit is mounted to output a control signal for controlling the power semiconductor element; and a housing (101) for accommodating the power semiconductor module (300U, 300V, 300W), the first flow path forming body (110), the second flow path forming body (401), the first base plate (400) and the driver circuit board (200), wherein the driver circuit board (200) is arranged such that the mounting surface of the driver circuit is opposite a side wall (401A) of the second flow path forming body (401), wherein the second flow path forming body (401) forms the accommodation space (402) for the accommodation of the power semiconductor module (300U, 300V, 300W), wherein the second flow path forming body (401) also forms an insertion opening (403) leading to the accommodation space (402) in the side wall (401A) opposite the mounting surface of the driver circuit, wherein the power semiconductor module (300U, 300V, 300W) has a control terminal (325) which passes through the insertion opening (403) and is connected to the driver circuit board (200), wherein the first flow path forming body (110) is attached to the housing (101), wherein the first flow path forming body (110) also forms an opening section leading to the first flow path (112a), wherein the first base plate (400) is designed to close the opening section and is connected to the first flow path forming body (110), and wherein the first base plate (400) also forms a first through-hole (406) connecting the first flow path (112a) and the accommodation space (402).

This power supply device is provided with: a power supply line that is disposed along a movement path of a plurality of moving bodies and that supplies power to the plurality of moving bodies; a power supply device connected to the power supply line and supplying power to the power supply line; and a control system that controls the power supply device. A control system is provided with: a moving body number information acquisition unit that acquires moving body number information indicating the number of moving bodies in a power supply region, which is a region in which a power supply line is disposed in a movement path; and a control execution unit that executes supply power variable control for reducing power supplied from the power supply device to the power supply line in accordance with a decrease in the number of moving bodies in the power supply area on the basis of the number of moving bodies information. Power supplied from the power supply device to the power supply line is increased in response to an increase in the number of moving bodies in the power supply area.