467results about "Electric locomotives" patented technology

The invention relates to the technical field of electric vehicle control, and provides an intelligent new energy locomotive power distribution and energy recovery control system and method. The system comprises a multi-source information sensing layer, an intelligent decision control layer and an execution feedback layer. The multi-source information sensing layer collects the state of a vehicle and external environment data. The intelligent decision control layer generates a power distribution and energy recovery instruction through data fusion and preprocessing, fuzzy logic assistance, reinforcement learning decision and cooperative work of a multi-objective optimization module; and the execution feedback layer executes the instruction, monitors feedback in real time, and optimizes related actions. According to the method, advanced technologies such as reinforcement learning and fuzzy logic are fused, complex and changeable driving scenes are accurately dealt with, self-adaptive optimization of power distribution and energy recovery strategies is achieved, the energy recovery efficiency is improved, power distribution is accurate and efficient, dynamic adjustment can be achieved according to driving intentions and working conditions, the driving safety and comfort are guaranteed, and meanwhile the driving efficiency is improved. And efficient utilization of energy is realized.

The invention discloses a layered energy management method of a fuel cell hybrid tramcar with self-adaptive working condition perception. In the recognition layer, a sliding window mechanism is adopted to extract time domain and frequency domain features of load conditions, feature data are clustered based on a spectral clustering algorithm driven by a deep auto-encoder, a data set with category labels is obtained, and a deep dynamic learning vector quantization neural network classifier is trained; in the strategy layer, a double-delay depth deterministic strategy gradient reinforcement learning algorithm is adopted, a reward function is constructed, and lithium battery SOC fluctuation penalty term limit parameters in the reward function are adaptively adjusted according to the real-time load working condition category output by the recognition layer; training the reinforcement learning agent to obtain an optimal power distribution scheme between the multi-stack fuel cell power generation system and the lithium battery; and according to the performance degradation degrees of different fuel cell stacks, a distributed cooperative control strategy considering performance difference is adopted to distribute the output power of each stack, so that the coordinated control of the running state of the multi-stack fuel cell power generation system is realized.

The invention relates to the field of locomotive power battery electric quantity control, and particularly discloses a locomotive power battery electric quantity hysteresis equalization control method, which comprises the following steps that: a traction force exerting mode is reset into an axle load transfer mode, and the initial value of an electric quantity equalization compensation coefficient K is a rack axle load transfer coefficient corresponding to zero speed; judging whether the current mode is a power battery power supply mode; if yes, the TCU receives the electric quantity of a front power battery and the electric quantity of a rear power battery in real time according to the current locomotive working mode, calculates the electric quantity average value difference value, monitors the auxiliary load power and the traction motor power and calculates the power difference value; entering a hysteresis control logic process; calculating a dynamic traction force compensation coefficient, ensuring that the traction force compensation amount is matched with the actual load characteristic of the system, correcting the traction characteristic curve in real time, and dynamically compensating the electric quantity difference of the battery; and performing traction distribution control according to the locomotive speed and outputting corresponding traction.

The invention discloses a fuel cell hybrid train energy dispatching method and system. The method comprises the steps that S1, a hydrogen fuel hybrid train power system model is constructed; s2, acquiring required power in a train running process, and decomposing the required power into a low-frequency component and a high-frequency component by using a low-pass filter with adjustable cut-off frequency; constructing a double-layer reinforcement learning agent, and performing real-time dynamic optimization adjustment by taking the cut-off frequency of the low-pass filter as an action variable of the reinforcement learning agent; s3, designing a multi-objective reward function and a system total cost function, and synchronously optimizing fuel cell efficiency, fuel cell power fluctuation, hydrogen consumption and lithium battery SOC to approach initial values; and updating double-layer reinforcement learning agent network parameters through a depth deterministic strategy gradient algorithm, and finally outputting a real-time power distribution instruction of the fuel cell and the lithium battery. The method has the advantages of reducing the fluctuation of the output power of the hydrogen fuel cell, reducing the hydrogen consumption and the like.

The utility model relates to an electric rail locomotive battery system, which is characterized in that an auxiliary battery system and a power battery system are respectively arranged in a carriage and a dragging carriage, and an electrical cabinet is used for transmitting voltage output by each battery cluster in the power battery system to a confluence cabinet; and the confluence cabinet transmits the voltage output by each battery cluster in the auxiliary battery system to the auxiliary load system for power supply, and transmits the voltage output by each battery cluster in the power battery system or the voltage output by each battery cluster in the auxiliary battery system to the driving load system for power supply. The power battery system or the auxiliary battery system can be used for supplying power to the driving load system according to actual use scene requirements, the endurance mileage of the vehicle is guaranteed, and the power supply reliability is improved.

A service vehicle and a method for servicing at least one container handling vehicle in an automated storage system comprising a three-dimensional storage grid (104) for storing storage containers (106), at least one container handling vehicle (201, 301, 404) operating on the storage grid with at least a first set of tracks running substantially perpendicular to at least a second set of tracks and said service vehicle comprises two sets of wheels wherein a first set of wheels are arranged to engage with the first set of tracks and the second set of wheels are arranged to engage with the second set of tracks characterized in that a platform is mounted on the two sets of wheels and said platform is enclosed and that said enclosure has at least one door.

The utility model relates to the technical field of electric locomotives, in particular to a mining explosion-proof lithium ion electric locomotive structure which comprises an electric locomotive body and a mounting box and is characterized in that the mounting box is mounted in the electric locomotive body, cross grooves are formed in the inner walls of the two sides of the mounting box, first buffer mechanisms are arranged in the cross grooves, and second buffer mechanisms are arranged in the cross grooves. A first buffering mechanism is arranged at the bottom of the mounting box, a second buffering mechanism is arranged at the bottom of the mounting box, a top cover is arranged at the top of the mounting box, a limiting mechanism is arranged at the bottom of the top cover, the first buffering mechanism comprises a cross-shaped rod, the cross-shaped rod is slidably mounted in a cross-shaped groove, and a fixing cylinder is fixedly connected to the side wall of the cross-shaped rod. Through the combined action of the first buffering mechanism, the second buffering mechanism and the limiting mechanism, when collision occurs, the storage battery is protected to a certain degree, the situation that the storage battery is damaged is avoided, and then the possibility that the storage battery explodes is reduced.

The invention discloses a power supply mode control method and control device for a dual-source locomotive, and the power supply mode control method comprises the steps: controlling the locomotive to enter an automatic power supply mode, and then obtaining a front networking signal and an upper networking signal sent by an automatic driving system of the locomotive in real time; wherein the front network signal is used for describing whether a contact network exists at a first preset distance in front of the running of the locomotive, and the upper network signal is used for describing whether the contact network exists above the current position of the locomotive; if the front network signal is the high-level signal and the upper network signal is the high-level signal, controlling the locomotive to enter an automatic pantograph-catenary mode; if the front network signal is the low-level signal or the upper network signal is the low-level signal, the locomotive is controlled to enter an automatic battery mode. According to the invention, automatic switching between the pantograph-catenary mode and the battery mode is realized, the operation steps of workers are reduced, the probability of machine damage accidents during manual switching of the modes is effectively reduced, and meanwhile, the energy utilization rate is improved.

The invention discloses a heavy-load freight direct-current electric locomotive on-board platform and a train operation curve calculation method. Step-by-step iterative optimization is carried out through a dynamic programming algorithm. Presetting operation steps and step lengths, and defining a selectable action set in each step length; and with the current state of the train as a starting point, evaluating each action in the action set in each iteration step, and calculating the next train state which may be transferred to. And evaluating all possible train state changes by adopting a target cost function, sorting according to the cost values from small to large, and preferentially selecting the action with the minimum cost value for subsequent calculation. And if all the action cost values of the current step exceed the limit, backtracking to the previous iteration step for reselection. And after iteration to the maximum step number, storing all train state changes, and finally obtaining an optimal train operation curve under the constraint of the target function. The method optimizes a control strategy through a dynamic programming algorithm, improves prediction precision, optimizes action selection, accelerates convergence, reduces redundancy, and improves operation stability, safety and algorithm efficiency.

An onboard charging system configured for installation on a rail vehicle is provided, comprising: one or more current collection contacts; a battery, electrically connectable to the one or more current collection contacts; and an onboard charging controller having a wireless communications interface. The onboard charging controller is configured to: establish a secure wireless communication connection with a first trackside charging controller; and responsive to determining that the one or more current collection contacts have been brought into electrical contact with corresponding trackside charging contacts: instruct the first trackside charging controller, via the secure wireless communication connection, to provide a first current via the one or more trackside charging contacts.

The invention discloses a rail train gravity energy storage system which comprises a low-position storage yard, a high-position storage yard, a transport train, a train rail, a driving device, a power generation device and a transfer device. The train track comprises an upward track, a high-position running track, a downward track and a low-position running track which are sequentially connected to form an annular track; a height difference exists between the low-position storage yard and the high-position storage yard; the ascending rail is provided with an ascending section, the ascending section ascends step by step at the altitude, the multiple driving devices are arranged along the ascending section at intervals, and the distance between any two adjacent driving devices is smaller than or equal to the train length of the transport train. The descending rail is provided with a descending section, the altitude of the descending section is decreased step by step, the multiple power generation devices are arranged along the descending section at intervals, and the distance between any two adjacent power generation devices is smaller than or equal to the train length of the transport train. According to the rail train energy storage system, by arranging the ascending section ascending step by step and the descending section descending step by step, the operation stability and the operation efficiency of the whole system can be improved.

The utility model discloses a power supply circuit of a rail locomotive, which belongs to the field of rail locomotives and comprises a power storage battery, charging devices, a main circuit and an auxiliary circuit. The first charging device is connected with the first power storage battery, the first power storage battery supplies power to the first traction inversion module, the second traction inversion module and the first auxiliary inversion module, the second charging device is connected with the second power storage battery, and the second power storage battery supplies power to the third traction inversion module, the fourth traction inversion module and the second auxiliary inversion module. The first auxiliary inversion module is connected with the second auxiliary inversion module through an equalization contactor KM6. According to the utility model, the two auxiliary inversion modules are standby for each other, so that the redundancy is good; the balancing contactor of the auxiliary loop can solve the problem that the electric quantity of two independent systems is unbalanced; braking working condition electric energy is fed back to the power storage battery, and the energy utilization rate is high.

A vertiport system according to an embodiment may include a first area, a second area provided in a different position from the first area, and a transfer unit configured to transfer an aircraft between the first area and the second area, wherein the transfer unit may include a transfer rail connecting the first area and the second area, and a moving device configured to accommodate at least a portion of a landing gear of the aircraft and the moving device being configured to move along the transfer rail.

The utility model provides a basic power unit for a railway vehicle and a railway vehicle marshalling, the basic power unit for the railway vehicle comprises a first vehicle and a second vehicle, and the first vehicle and the second vehicle are connected in sequence. Wherein the first vehicle is provided with a power bogie, and the second vehicle is provided with a power bogie and a non-power bogie. The railway vehicle marshalling comprises a plurality of basic power units which are arranged in sequence, and each basic power unit has the same dynamic drag ratio.

The utility model discloses an electric locomotive which comprises a tractor, a plurality of electricity storage vehicles and a plurality of functional vehicles, the tractor is provided with an electric walking mechanism, all the electricity storage vehicles and all the functional vehicles are sequentially arranged, and every two adjacent ones of the tractor, all the electricity storage vehicles and all the functional vehicles are detachably connected. The electricity storage vehicle is provided with an energy storage system, and the energy storage system is electrically connected with the electric walking mechanism. According to the novel electric locomotive, the traction vehicle can be directly powered by the electricity storage vehicle, a pantograph does not need to be arranged on the electric locomotive, a contact net matched with the pantograph does not need to be erected for the electric locomotive, and the operation cost is reduced.

The invention relates to a rail vehicle (12) comprising a traction battery (8) and a power converter (4). The power converter (4) can be supplied with electrical current by the traction battery (8). The power converter (4) is connected to a DC electrical system (7) via a power converter voltage converter (6). The invention also relates to a method for switching on a rail vehicle (12). In this method, the vehicle voltage converter (2) is first supplied with energy from the traction battery (8) via the DC electrical system (7) before the power converter (4) is activated.

The vehicle has an electric traction chain (3) for supplying drive torque to the wheels, a generator set (6) configured to generate a first supply voltage and mechanically disconnected from the wheels in all operating states, a battery storage assembly (21) configured to generate a second supply voltage, and an energy management system (20, 40) having a control unit that implements operating states of the vehicle including: (i) powering the electric traction chain (3) with the first supply voltage, (ii) powering the electric traction chain (3) with the second supply voltage, (iii) charging the storage assembly with a network voltage external to the vehicle and coming from a catenary (104), (iv) charging the storage assembly with the first supply voltage, and (v) charging the storage assembly with recovered voltage generated by the traction chain acting as a generator.

A vertiport system according to an embodiment may include a first area, a second area provided in a different position from the first area, and a transfer unit configured to transfer an aircraft between the first area and the second area, wherein the transfer unit may include a transfer rail connecting the first area and the second area, and a moving device configured to accommodate at least a portion of a landing gear of the aircraft and the moving device being configured to move along the transfer rail.

The invention relates to a locomotive adhesion control method and device based on model-free self-adaptive sliding mode control and a medium, and the method comprises the steps: collecting the traction torque and the wheel rotating speed of a locomotive at the current moment, and calculating the current creep speed; on the basis of the current creep speed and the adhesion coefficient obtained through the full-dimensional state observer, the optimal reference creep speed under the current rail surface condition is estimated online; the optimal reference creep speed is used as a tracking target, a model-free self-adaptive sliding mode controller constructed based on a partial format dynamic linearization data model and sliding mode control is utilized, and the traction torque adjusting amount is obtained through calculation; and the locomotive traction torque is adjusted in real time according to the traction torque adjusting quantity, so that the actual creep speed tracks the optimal reference creep speed, and the locomotive runs near the optimal adhesion point. Compared with the prior art, the method has the advantages of being high in practicability, improving user experience, being high in safety and the like.

The invention discloses a fireproof partition system, method and device of a rail vehicle energy storage system and a medium, relates to the technical field of rail traffic, and provides the fireproof partition system of the rail vehicle energy storage system in order to solve the problem that an effective fireproof scheme is lacked in a space-first application scene of the rail vehicle energy storage system at present. Fireproof protection of the energy storage system is achieved through the air door arranged at the ventilation and heat dissipation air opening of the energy storage system, and the air door and the energy storage system hardly occupy extra space. And closing control over the air door is fused with an original fault processing mechanism of the train, additional control module arrangement is omitted, and occupied space is further reduced. Therefore, the system provides an effective protection scheme for the fire prevention problem of the rail vehicle energy storage system in a scene with extremely limited space. The energy storage system can be additionally arranged on the railway vehicle on the premise that the requirement of the railway traffic for the fireproof safety level is guaranteed.

This invention discloses a universal battery-powered railcar designed for tunnel operations, comprising a lithium-ion battery flatbed as a mobile base, and a top control assembly and a side control assembly mounted on top of the lithium-ion battery flatbed. A control module and a power module for providing power support to the top and side control assemblies are also connected to one side of the upper part of the lithium-ion battery flatbed. The side control assembly includes a telescopic arm that slides laterally along the vehicle body and a telescopic drive component that drives its movement. A fine-tuning structure is also connected between the lithium-ion battery flatbed and the telescopic drive component. The top control assembly includes a lifting mechanism driven by the power module and a working platform mounted on its top. The advantages of this invention compared to existing technologies are: it provides a convenient and easy-to-use universal battery-powered railcar designed for tunnel operations, integrating movement, lifting, telescopic movement, and fine-tuning, along with its method of use.

The utility model discloses a heat guarantee device, electric energy equipment and a vehicle, and relates to the technical field of rail transit air conditioners, a liquid cooling branch of the heat guarantee device comprises a water return sub-branch, a water outlet sub-branch, a second heating branch and one or more first heating branches, and the second heating branch and the one or more first heating branches are arranged in parallel; each first heating branch is provided with a first heater; the second heating branch is provided with a second heater and a flow adjusting part; wherein the heating power of the first heater is Q1, and Q1 is a non-negative number; the heating power of the second heater is Q2, and Q2 is a non-negative number; the number of the first heating branches is N, and N is a natural number greater than 0; the heating power of the heat guarantee device can be adjusted in a stepless mode in the range of {kQ2 + NQ1k belongs to [0, 1]}, and k is the adjusting range of the flow adjusting piece. According to the heat guarantee device, stepless adjustment of the heating power is achieved, the problem that in the prior art, the temperature of cooling liquid is difficult to flexibly adjust through a single high-power electric heater is effectively solved, and therefore the stability and adaptability of temperature control are improved.

The utility model discloses a three-axle bogie of a new energy rail traction locomotive, which relates to the technical field of three-axle bogies, and comprises a framework, a connecting mechanism, a sand mechanism, a buffer mechanism, a traction frame, a pull arm mechanism and a driving mechanism, the connecting mechanism is arranged at the top of the framework, the sand mechanism is arranged at the corner of the framework, and the buffer mechanism is arranged at the bottom of the framework. The multiple buffering mechanisms are installed on the two sides of the framework respectively, the traction frame is installed at the ends of the buffering mechanisms, the arm pulling mechanism is installed on the framework, and the multiple driving mechanisms are installed below the framework at equal intervals. Through the arrangement mode that the sand mechanism, the buffering mechanism, the traction frame, the pull arm mechanism and the driving mechanism are matched, the power bogie of the new energy rail traction locomotive is more compact in structure, smaller in power loss and higher in efficiency, large-torque operation can be provided for the locomotive, electric energy is saved, and cost is reduced; the use stability of the bogie is improved.

The invention relates to the technical field of metallurgical transportation equipment, and particularly discloses a permanent magnet motor planetary gear driving type molten iron tank car and a control method thereof.The permanent magnet motor planetary gear driving type molten iron tank car adopts a two-stage planetary gear transmission system arranged in series, power generated by a permanent magnet motor is input from a first-stage sun gear, and power generated by a second-stage sun gear is input from a third-stage sun gear; due to the fact that the planetary speed reduction structure has the speed reduction ratio, torque can be increased by several times on the aspect of power, torque maximization of the molten iron tank car is achieved, the bearing capacity and the transmission efficiency of the molten iron tank car are remarkably improved, the reliability and the stability of the car are improved, the service life of the car is prolonged, and the maintenance cost is reduced. And efficient operation of the molten iron tank car is guaranteed, the using effect of molten iron is improved, and the subsequent production efficiency is improved.

A semiconductor device according to an embodiment includes a silicon carbide layer, a silicon oxide layer having a peak frequency of a longitudinal wave optical mode of 1245 cm−1 or more at a position 0.5 nm away from the silicon carbide layer, and a region located between the silicon carbide layer and the silicon oxide layer and having a nitrogen concentration of 1×1021 cm−3 or more. The concentration distribution of nitrogen in the silicon carbide layer, the silicon oxide layer, and the region has a peak in the region.

The instant disclosure discloses a method of operating a personal ecosystem transportation system that includes receiving instructions to pick up either passengers or freight at a specific siding or terminal, transporting those passengers or freight to a specified siding or terminal using a self-contained electrically powered vehicle, controlling the vehicle from within the vehicle to eliminate the use of external control mechanisms for moving the vehicle from the main track to a siding, and scheduling and programming the vehicle control system to proceed to a charging siding once the current assignment is completed when the vehicle control system determines that the battery of the vehicle requires recharging.

The present application relates to the technical field of rail vehicles, and provides a traction power system for a variable formation train and a variable formation train. The traction power system comprises two fixed traction power units and N variable traction power units (2), the fixed traction power units are arranged on a leading car, and the variable traction power units (2) are arranged on intermediate cars. A train formation can be adjusted according to the requirements of different operational scenarios, rapidly achieving transitions between different formation forms of a train, greatly improving the flexibility of the train formation, and achieving the optimal train performance utilization. In addition, the fixed traction power units and the variable traction power units (2) exhibit high independence, the transitions between different formation forms are convenient, the train variable formation operation efficiency is improved; and the power redundancy is high, and the starting acceleration requirement of a user for a suburban train can be well met.

The application provides a power supply conversion device for an energy storage train and a railway vehicle. The device comprises an energy storage module, a charging module and a high-voltage electrical appliance box. The energy storage module is connected with the charging module, and the charging module is connected with the high-voltage electrical appliance box. The high-voltage electrical appliance box comprises a pantograph contactor. In the case that the energy storage train enters a non-network area from a network area, after the remaining driving time in the network area reaches, the charging module is converted to a step-up discharging state, the pantograph contactor is controlled to be disconnected, and the energy storage module is converted from being put into to discharging. In the case that the energy storage train enters a network area from a non-network area, after the remaining driving time in the non-network area reaches, the charging module is converted to a step-down charging state. The application solves the defect that the power supply conversion of the energy storage train in the prior art will be short-circuited, and realizes smooth and uninterrupted power supply of the energy storage train during power supply conversion.