1068results 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.

A track-based guided transportation system, wherein a vehicle moving along the track-based guideway can operate using an integrated magnetic levitation, suspension and propulsion technology. The vehicles can move aloft with reduced resistance and lower power consumption to attain contact or contactless displacement.

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 provides a wheel rail-permanent magnet electric fusion type maglev rail traffic system, which relates to the field of rail traffic and is characterized in that guide rails are arranged on sleepers, a frame moves along the guide rails, guide wheels are mounted at the bottom of the frame and are in contact with the guide rails, and the frame is guided to advance or retreat along a preset direction through the contact between the guide wheels and the guide rails. The stator is arranged on the side of the guide rail, and the rotor is arranged on the frame and parallel to the stator axis. When the stator is electrified, an alternating magnetic field can be generated, and the mover is subjected to the action of electromagnetic force under the action of the magnetic field, so that the frame is pushed to move along the guide rail, and the operation of the rail transit system is realized.

Disclosed is a linear motor with improved capacitive power transfer from the stator to the shuttle of the motor. The linear motor comprises a capacitive power transfer arrangement with a power transfer capacitor with a power transfer air gap as dielectric in between a primary electrode and a secondary electrode, wherein the motor air gap of the linear motor and the power transfer air gap are parallel and are arranged in transverse direction next to each other.

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 linear transport system (100) comprising: a movable unit (101); a stationary unit (103) having a guide rail (105) for guiding the movable unit (101); a linear motor (107) for driving the movable unit (101) along the guide rail (105); and a position-determining system (109), wherein the position-determining system (109) comprises at least a first wireless transceiver element (121) and a second wireless transceiver element (123), wherein, by reading out identification information (Id), provided by the first wireless transceiver element (121) or the second wireless transceiver element (123), using the other wireless transceiver element (121, 123), first position information relating to a position of the rotor (113) relative to the stator (111) can be determined, and wherein, taking into account the first position information, a position range (PB) relating to a positioning of the rotor (113) relative to the stator (111) can be determined. The invention also relates to a computer-implemented method (200) for operating a linear transport system (100).

A control module is provided for driving a vehicle relative to a track with a first and second rail both having a reluctance varying over the length of the track The vehicle comprises a first electromagnetic actuator module arranged to interact with the first rail; and a second electromagnetic actuator module arranged to interact with the second rail. The control module arranged to receive data indicating a distances between the electromagnetic actuator modules and the rails, relative positions of variations of the reluctance in the rails relative to the electromagnetic actuator modules. The control module is arranged to, based on the received data, generate a current signals and provide the generated current signals to the respective electromagnetic actuator modules.

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.

To allow a movement limit or a dimension of a mover to be changed safely in a transport system in the form of a long-stator linear motor during operation of the transport system, a method provided that, during operation of the transport system, a new movement limit or a new dimension is predetermined for a first transport unit, and it is checked whether the new movement limit or the new dimension results in a risk of collision with another, adjacent transport unit or a barrier of the transport system due to the predetermined collision logic, and, if no risk of collision is recognized, the new movement limit is used in the collision logic as a collision movement limit for the first transport unit or the new dimension is used in the collision logic as a collision dimension of the first transport unit.

The embodiment of the invention provides a vehicle-mounted photovoltaic control method, device and system and a vehicle, and relates to the technical field of batteries. The method comprises the steps that a controller monitors the current driving state of a vehicle and the electric quantity of a vehicle-mounted battery and adjusts the posture of a photovoltaic panel according to the current driving state and the electric quantity. The method provided by the invention effectively solves the problem that the power generation efficiency of the vehicle-mounted photovoltaic panel is easy to be insufficient or the driving safety of the vehicle is influenced in the related technology.

The electromagnetic supporting system comprises an M-shaped rail, a suspension electromagnet and a traction motor stator, the M-shaped rail comprises a body and a traction motor secondary induction plate fixed to the middle of the lower surface of the body, and the upper surface of the body is fixedly connected with the lower surface of a T-shaped rail beam. The suspension electromagnet is located below the M-shaped rail and installed on the lower portion of a suspension frame supporting arm of the vehicle body, the suspension electromagnet comprises a U-shaped iron core and an electromagnet winding wound around the middle of the U-shaped iron core, the two ends of the U-shaped iron core upwards point to a body of the M-shaped rail, and a traction motor stator is fixed to the upper portion of the electromagnet winding and corresponds to a traction motor secondary induction plate in position. According to the invention, the suspension energy consumption of the medium-low-speed magnetic suspension vehicle in a vehicle rail-holding form is reduced, and the service life of the suspension electromagnet is prolonged.

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 permanent magnet suspension monorail vehicle bogie comprises a bogie frame and a suspension device, a motor is installed at the top of the bogie frame, a brake device and a guide wheel are arranged at the two ends of the bottom of the bogie frame in the longitudinal direction of the bogie frame, and the number of the guide wheel located at any end of the bogie frame is one. Safety wheels are installed on the periphery of the bottom of the bogie frame, and the guide wheels and the brake device share a brake clamping rail. A current collection device and a permanent magnet suspension device are mounted at the bottom of the bogie frame; the suspension device comprises a suspension beam, and the suspension beam is connected with the bogie frame through a suspension pin and connected to a vehicle body through a suspension frame and a traction rod. According to the permanent magnet suspension monorail vehicle bogie, the internal structure of the bogie frame can be simplified, and the strength design of the bogie frame is reduced; the scheme that a single guide wheel is arranged on a single side is adopted, and the number of the guide wheels is reduced; the guide wheels and the brake device share the brake clamping rail, and the overall height of the bogie and the rail beam can be reduced.

The invention discloses a suspension type electromagnetic propulsion device and a construction method. The suspension type electromagnetic propulsion device comprises two rails which are arranged in parallel, a driving coil and a suspension coil are oppositely arranged on the inner sides of the two rails, a plurality of driving coil mounting grooves are formed in the inner sides of the rails in the length direction of the rails at intervals, and the driving coil mounting grooves are parallel to the cross sections of the rails. The driving coil is vertically installed in the driving coil installation groove, the multiple suspension coils are installed on the inner side of the track in the length direction of the track at intervals, and the driving coil installation groove and the driving coil are arranged between the suspension coils. The track is simplified, and the driving coil is simple in assembly process and convenient to replace; when the polar distance is large, waste of transverse edges of the driving coil can be effectively reduced, and the utilization rate of the driving coil is improved.

The invention relates to a linear transport system (100) with a movable unit (101), a stationary unit (103) with a guide rail (105) for guiding the movable unit (101), a linear motor (107) for driving the movable unit (101) along the guide rail (105) and a position detection system (109), wherein the position detection system (109) comprises at least a first radio transmitting / receiving element (121) and a second radio transmitting / receiving element (123), wherein by reading out the identification information (Id) provided by the first radio transmitting / receiving element (121) or the second radio transmitting / receiving element (123) by the respective other radio transmitting / receiving element (121, 123), a first item of position information regarding a position of the rotor (113) relative to the stator (111) can be determined,and wherein, taking into account the first position information, a position range (PB) with respect to a positioning of the rotor (113) relative to the stator (111) can be determined. , The invention further relates to a computer-implemented method (200) for operating 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 method and device for measuring the magnetic field intensity of a high-temperature superconducting maglev transportation system. The method comprises: determining the upper surface of a permanent magnet track as a magnetic field intensity reference (S1); constructing a chord reference-multi-point chord measurement system to detect irregularities on the upper surface of the permanent magnet track, chord measurement system configurations including a system sampling interval, a system order and a chord measurement configuration (S2); calculating chord measurement values of a plurality of measurement point positions in middle on the basis of the multi-point chord measurement system, and in combination with a least squares method, constructing an inversion model of the measurement system, wherein the inversion model refers to reconstructing an original track irregularity waveform from the chord measurement values of the chord reference, and track irregularities recovered on the basis of the inversion model represent the vertical displacement of the chord reference (S3); on the basis of an optimal chord measurement configuration of the multi-point chord system, determining arrangement positions of gap sensors, and arranging a Hall sensor array in a magnetic field intensity measurement direction (S4); and correcting a reference position on the basis of the vertical displacement of the chord reference, and on the basis of Hall sensor measurement results, using an interpolation method to calculate a magnetic field intensity distribution at any height above the reference (S5). The present invention proposes for the first time to combine a multi-point chord measurement principle to measure magnetic field intensity distribution irregularities of the permanent magnet track in high-temperature superconducting maglev transportation, and the measurement results can be used for evaluating magnetic field intensity irregularities of the permanent magnet track of a high-temperature superconducting maglev transportation system and adjusting the attitude of the permanent magnet track.

The invention relates to the technical field of maglev vehicle walking mechanisms, and provides a bilateral single-pull-rod traction suspension frame suitable for a single-section superconducting electric maglev vehicle, which improves the reliability of a suspension frame system, optimizes the spatial arrangement of suspension frame equipment, reduces the complexity of electrical pipelines, and facilitates the installation and maintenance of each equipment of the suspension frame. According to the technical scheme, the bilateral single-pull-rod traction suspension frame suitable for the single-section superconducting electric magnetic levitation vehicle comprises framework side beams, framework end beams, framework cross beams and traction pull rods, the two framework side beams are longitudinally arranged in parallel, and the ends of the two framework side beams are fixedly connected through the framework end beams to form a rectangular framework body; the two framework cross beams are arranged in the framework body in parallel, the ends of the framework cross beams are fixedly connected with the middles of the framework side beams, the centers of the top faces of the two framework end beams are each provided with a first installation base, one end of the traction pull rod is connected with the first installation bases, and the other end of the traction pull rod is connected with the traction device.

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.