294results about "Propulsion by capacitors" patented technology

The invention discloses a fuel cell hybrid electric vehicle power distribution method based on heuristic action planning deep reinforcement learning. The method comprises the following steps: establishing a power distribution system model of a fuel cell hybrid electric vehicle equipped with a lithium battery and a super capacitor; a power layered structure is provided, a deep reinforcement learning model of the fuel cell hybrid electric vehicle is designed, a probability transfer matrix of required power is constructed, and model training is performed in a data driving mode; designing a reward function by adopting an equivalent consumption minimum strategy, and guiding optimization of an energy management strategy by fuel economy; the motion space of deep reinforcement learning is improved by adopting heuristic planning, and smooth output of the fuel cell is kept on the premise of reducing equivalent hydrogen consumption. According to the method, power distribution of the three-energy-source fuel cell hybrid electric vehicle can be achieved in a complex and random driving environment, hydrogen consumption is reduced, dynamic adaptability to different driving conditions is improved, and meanwhile the method has the potential of real-time application.

Disclosed herein are systems and methods for energy management. A system, such as a vehicle, includes a plurality of energy storage units that include a supercapacitor and an electrochemical battery. The system includes plurality of energy storage units including a supercapacitor and an electrochemical battery, the supercapacitor comprising a plurality of selectable power sources, and an adder module including a processor. The processor is configured to execute instructions to selectively connect the supercapacitor or the electrochemical battery to an electric drivetrain to propel the vehicle. The processor may be configured to measure the selectable power sources and determine a set of the selectable power sources to connect to the system.

Disclosed herein are systems and methods for energy management. A system, such as a vehicle, includes a plurality of energy storage units that include a supercapacitor and an electrochemical battery. The system includes plurality of energy storage units including a supercapacitor and an electrochemical battery, the supercapacitor comprising a plurality of selectable power sources, and an adder module including a processor. The processor is configured to execute instructions to selectively connect the supercapacitor or the electrochemical battery to an electric drivetrain to propel the vehicle. The processor may be configured to measure the selectable power sources and determine a set of the selectable power sources to connect to the system.

A system includes a plurality of power modules connected in parallel and a variable current load controller coupled to the plurality of power modules. The input terminals of the plurality of power modules are configured to be coupled to an output of a fuel cell stack, and the output terminals of the plurality of power modules are configured to supply power to a forklift. The plurality of power modules is further configured to provide electrical isolation between the fuel cell stack and the forklift. The variable current load controller is configured to regulate power distribution among the plurality of power modules.

Aspects of the present disclosure are directed to systems, devices, methods, and computer-readable storage medium for adaptive / dynamic thermal management of an electrical power system having variable electric loads, and components thereof. Thermal management may be driven at least partially by predicted / modeled thermal performance of the component to be managed, which may be calculated or modified using direct or indirect measurements. Embodiments may include adaptive thermal management of at least one of an energy storage system and an electric energy supply. Applications of this disclosure may include adaptive thermal management method for electric vehicles and non-mobility applications, particularly having variable electrical loads, which may impact performance or life of the application.

The invention relates to the technical field of hybrid electric vehicle energy management, in particular to a hybrid electric vehicle layered reinforcement learning energy management method considering energy source life and energy consumption optimization. The method comprises the following steps: establishing an energy management system model and an energy source degradation model; energy source physical characteristics are analyzed, demanded power is processed in a layered mode, and an energy management learning strategy based on historical data is constructed; and energy management is implemented by combining the demand power change, the lithium battery, the super capacitor SOC and the degeneration degree of the energy source. Fuzzy filtering is adopted to shunt required power, a high-frequency peak value is borne by a super capacitor, and low-and-medium-frequency power is proportionally distributed by a lithium battery and a fuel battery according to the degradation degree; energy source degradation and deep reinforcement learning are fused, related parameter weighting is introduced into the ECMS, and lithium battery charging and discharging current is restrained. According to the method, comprehensive energy consumption can be reduced, energy source degradation is slowed down, the working condition application range is widened, overcharge and overdischarge of the lithium battery are avoided, the service life of the lithium battery is prolonged, and the SOC of the energy storage element is stabilized in a reasonable interval.

The invention relates to the technical field of rail transit, in particular to a linear motor traction converter system which comprises a linear motor carrying truck, a traction carrying truck, an energy supplementing carrying truck and a quick plug connector. Wherein the linear motor carrying truck carries a linear motor and a section switch which are connected with each other; the traction carrying truck carries a traction converter and a super capacitor which are connected with each other; the energy supplementing carrying truck carries the battery charging unit; the quick-plug connectors comprise a first quick-plug connector and a second quick-plug connector; wherein the section switch is connected with the traction converter through the first quick plug connector. According to the scheme, through function decoupling and vehicle-mounted design, an original integrated system is decomposed into three core modules with independent maneuvering capacity, on-site hour-level rapid electrical assembly is achieved, and the core pain point of long deployment period is solved.

An electric vehicle includes an electric drive device, first and second energy storage devices, and a bidirectional DC converter. The drive device, the DC converter, and the second energy storage device are connected to each other via a common intermediate circuit. The intermediate circuit includes an intermediate circuit voltage, the first energy storage device includes a storage voltage and is connected to the intermediate circuit via the DC converter. The drive device is supplied with drive energy by the first and / or second energy storage device. The intermediate circuit voltage is converted into the storage voltage in a first converter direction by the DC converter. The storage voltage is converted into the intermediate circuit voltage in a second converter direction by the DC converter. The first converter direction is activated when charging the second energy storage device and is deactivated when discharging the second energy storage device.

The utility model discloses a power supply device for an electric carry-scraper and the electric carry-scraper comprising the power supply device, and belongs to the technical field of engineering machinery. The power supply device comprises a charging device, a direct current distribution box and an auxiliary power supply, the charging device is used for converting alternating current into direct current and providing the direct current for the direct current distribution box, the direct current distribution box is used for tapping the received direct current, and the auxiliary power supply is electrically connected to the charging device and the direct current distribution box; and an auxiliary power supply for receiving power from the charging device and the DC distribution box and supplying power to the DC distribution box, the auxiliary power supply independently supplying power to the electric carry-scraper when the electric carry-scraper needs power and the charging device does not supply power to the electric carry-scraper. The maneuverability of the towing type electric carry-scraper can be improved, the efficiency of an original power system can be improved, and the comprehensive cost of the carry-scraper can be reduced.

The present invention discloses an optimized energy allocation method and system for an electric vehicle and an electric vehicle. The method includes step (1) detecting remaining charge levels of a first super-capacitor and a second super-capacitor, determining whether the remaining charge levels of the first super-capacitor and the second super-capacitor are greater than a preset threshold value, and if so, proceeding to step (2); step (2) acquiring a topographic map of a road ahead by means of an electric horizon system, predicting whether there is a continuous slope ahead, and if so, proceeding to step (3); and step (3) according to a continuous slope value ahead, predicting a braking force allocation proportion when carrying out braking ahead, allocating current power outputs of the first super-capacitor and the second super-capacitor in advance according to the braking force allocation proportion, and returning to step (1).

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 invention discloses a vehicle power system and an energy management method. The vehicle power system comprises a fuel stack system, a super capacitor module, a power battery module, a switch module and a direct current bus, the fuel stack system comprises a first stack module; under the condition that the vehicle is in a braking state, if the maximum allowable charging power of the power battery module is greater than the sum of the power of the fuel pile system and the braking power of the vehicle motor, the first switch module is used for communicating the first pile module with the direct-current bus; the second switch module is used for disconnecting the super capacitor module from the direct current bus and the first electric pile module respectively; and if the maximum allowable charging power of the power battery module is smaller than or equal to the sum of the power of the fuel pile system and the braking power of the vehicle motor, the first switch module and the second switch module are used for communicating the first pile module and the super capacitor module. Therefore, the recovery ratio of the braking energy is improved, and the economical efficiency of the vehicle is improved.

A method and system for controlling a hybrid power system comprising a plurality of energy sources includes obtaining, by at least one processor, a plurality of state variables associated with the hybrid power system, determining a reference value for each of the state variables, and computing an error vector representing a difference between the state variables and the reference values. An integral sliding surface is generated using the error vector, and at least one control input for respective power converters is determined based on the sliding surface and a system model of the hybrid power system to cause the state variables to converge to the reference values within a fixed time independent of initial conditions. The at least one control input is applied as pulse width modulation signals to regulate distribution of energy, thereby maintaining a stable DC bus voltage and ensuring real-time operation.

Disclosed herein are systems and methods for energy management. A system, such as a vehicle, includes power packs and a photovoltaic array with interconnected photovoltaic cells that supplies electric charge to the power packs for charging the power packs. A charge management database stores data tracking respective charge cycles of the power packs based on the charging and discharging of the power packs. An energy control system controls flow of power in the system to control the charging and the discharging of the power packs, optimizes the flow of power in the system based on the respective charge cycles as tracked in the data stored in the charge management database, and updates the charge management database based on the optimization(s). An output interface outputs a status of the power packs based on the flow of power, for instance to indicate effect(s) of the optimization(s) on the power packs.

The present invention is a system and method for recovering the kinetic energy created by movement of a vehicle frame relative to a vehicle suspension to generate electrical energy that may be utilized on-the-fly or stored in order to provide power to an electric vehicle, wherein an embodiment for a regenerative energy system uses a hydraulic system coupled to the shock absorbers of a vehicle or trailer, wherein the captured kinetic energy is transferred to a plurality of gear assemblies to convert movement of the vehicle or trailer to rotary motion that is then amplified in rotational speed by a gear reduction system to cause rotational movement of a shaft of one or more generators in a single rotational direction to thereby generate electricity that may be utilized directly by electrical motors or stored in batteries or supercapacitors.

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.

A system for a capacitor of an inverter of an electric vehicle. A system includes an inverter for converting direct current (DC) power from a battery to alternating current (AC) power to drive an electric machine, where the inverter includes: a capacitor assembly including: a planar busbar including a first DC busbar and a second DC busbar; a capacitor on the same side of the first DC busbar and the second DC busbar, the capacitor including a first end cap extending in a direction substantially perpendicular to a longitudinal direction of the planar busbar; and a first connection plate disposed at the first end cap to connect the capacitor to the first DC bus bar, and a second connection plate disposed at the second end cap to connect the capacitor to the second DC bus bar.

The application provides a pre-charging method and system of a motor train unit traction auxiliary converter, the method comprising: closing an output contactor in the traction auxiliary converter according to a received contactor closing instruction; if no pre-charging instruction is received, judging whether to perform a pre-charging process on a direct current capacitor in the traction auxiliary converter according to a voltage of the direct current capacitor and a preset rated voltage; if yes, obtaining three-phase alternating current voltages and three-phase alternating current of an alternating current port of an auxiliary inverter in the traction auxiliary converter, determining active current feedback values and reactive current feedback values, and generating a pulse signal, and sending the pulse signal to the auxiliary inverter, so that an output voltage of a direct current port of the auxiliary inverter reaches the rated voltage. The application realizes the pre-charging function of the converter without increasing the hardware of the converter, reduces the cost, improves the availability of the converter, reduces the current impact of the switching device and the action frequency, helps to improve the service life and reduce the failure rate.

A constant voltage regulation system for super capacitor, comprises of a supercapacitor 1 for supplying electrical output for operating a load in EV / HEV, a voltage sensor to facilitate continuous monitoring of supercapacitor's voltage level, an inverter 2 for inverting incoming DC voltage into AC voltage, a controller 7 for analyzing range voltage level is falling, a voltage boosting circuit for selectively adjusting voltage level in accordance with received signal required for driving the load 9, a step-up transformer 3 composed of a primary winding 4 and secondary winding 5 having plurality of tap out 6 terminals in connection with load 9 via corresponding number of relays 8 for selectively tapping tap out terminal 6, a voltage level detection unit for sensing output voltage post tapping operation, a PWM control unit adjusts duty cycle for precise voltage adjustments of 0 boosted voltage and match required voltage to drive / handle the load 9.

The application discloses a novel vehicle-mounted high-low voltage fusion power supply network, comprising: a modular 48V high-voltage energy storage unit, which is composed of N lithium ion battery packs with a nominal voltage of 48V in series, forms a high-voltage DC bus, and each battery pack is integrated with an independent battery management subsystem; a full-isolation three-port DC / DC converter, whose high-voltage input end is connected to the high-voltage DC bus, has two low-voltage output ends that are electrically isolated from each other and completely isolated from the high-voltage side, wherein the first low-voltage output end is a 12V output end, directly connected to a vehicle 12V electrical network, and the second low-voltage output end is a 48V output end, serving as a medium-voltage distribution bus; through modular high-voltage energy storage, full-isolation multi-port power conversion, intelligent power distribution control and hardware-level redundancy design, the architecture completely cancels the 12V lead-acid storage battery, and realizes efficient, safe and bidirectional flow of energy among multiple voltage domains.

Disclosed are a fuel cell vehicle and a method of controlling the same. The fuel cell vehicle includes a battery, a cell stack configured to provide stack voltage, a load connected to the battery and the cell stack, a multiphase converter configured to adjust a voltage range between the cell stack and the battery and including first to Nth (where N is a positive integer of 2 or greater) current paths connected to the cell stack and connected in parallel to each other, and a main controller configured to control the multiphase converter to allow alternating current to sequentially flow through the first to Nth current paths when measurement of the impedance of the cell stack is required.

An energy supply system, particularly for a vehicle, comprises an energy storage device (14) with at least one supercapacitor array (16), a consumer / generator array (12) for receiving energy from the energy storage device (14) and for providing energy to be stored in the energy storage device (14), a charging / discharging unit (26) for transferring energy from the consumer / generator array (12) to the energy storage device (14) in a charging operating state, and a control unit (30) for controlling the charging / discharging unit (26). The control unit (30) is configured to control the charging / discharging unit (28) in the charging operating state to charge the at least one supercapacitor array (16) to a target storage voltage, wherein the target storage voltage increases with the aging of the at least one supercapacitor array (16).

A control device for a battery electric vehicle is used in a battery electric vehicle, and is configured to control a drive circuit, a voltage converter, and first and second relays. In the case where the control device controls, with the second relay controlled to turn off, the drive circuit and the first relay such that the voltage of the first capacitor changes, the control device determines that the second relay is stuck when the voltage on the connection line at a position closer to the voltage converter than the second relay changes following the voltage of the first capacitor. Sticking of the second relay can thus be determined.

The present application relates to a kind of electric vehicle energy management method, terminal device and storage medium, the method includes: real-time according to electronic horizon data calculates predictive dynamic threshold value, and according to predictive dynamic threshold value set electric vehicle battery and supercapacitor energy output and recovery ratio.The present application predicts the road ahead based on electronic horizon system, generates predictive dynamic logic threshold value according to electronic horizon information, changes the defect that conventional fixed logic threshold value does not have predictive optimal energy management, sets corresponding energy management strategy according to predictive dynamic logic threshold value to carry out predictive performance energy management, reduces the energy consumption of electric vehicle and prevents battery loss, improves vehicle economy and can play an active role.

To provide an energy conversion device and a safety control method for the same.SOLUTION: An energy conversion device includes a first switch module (10), a motor inverter (20) which has first and second bus terminals respectively connected to first and second terminals of a battery (70), and in which the first switch module (10) controls ON / OFF of the first bus terminal and the first terminal of the battery (70), or controls ON / OFF of the second bus terminal and the second terminal of the battery, or controls ON / OFF of the first bus terminal and the first terminal of the battery (70) and ON / OFF of the second bus terminal and the second terminal of the battery, a motor winding (30) having a first terminal connected to a midpoint terminal of the motor inverter (20), and a second switch module (40) and a first capacitor (50) which are connected in series, and a first terminal and a second terminal of which are connected to a second terminal of the motor winding (30) and the second bus terminal respectively after the series connection is established.SELECTED DRAWING: Figure 1

A computer system can remotely manage a vehicle's operational settings. The computer system can cause operational settings data to be downloaded to a vehicle to control one or more operations of the vehicle. The computer system can generate download event information indicating the operational settings data downloaded to the vehicle and a user associated with the vehicle. The computer system can access a pricing structure associated with operational settings. The computer system can charge the user based on the pricing structure and the download event information.

The invention relates to an energy supply system, in particular for a vehicle. The invention relates to a power plant (10) comprising an energy store (14) having at least one supercapacitor assembly (16), a consumer / generator assembly (12) for receiving energy from the energy store (14) and for providing energy to be stored in the energy store (14), a charging / discharging unit (26) for conducting energy from the consumer / generator assembly (12) into the energy store (14) in a charging operating state, and an actuation unit (30) for actuating the charging / discharging unit (26). The control unit (30) is designed to control the charging / discharging unit (28) in the charging operating state in order to charge the at least one supercapacitor component (16) to a nominal storage voltage, the nominal storage voltage increasing as the aging of the at least one supercapacitor component (16) increases.

Disclosed is an initial charging method for a DC / DC converter station having an input series-output parallel structure. The initial charging method for a DC / DC converter station having an input series-output parallel structure, according to an embodiment of the present invention, comprises the steps of: applying auxiliary power to a secondary-side conversion unit of a DC converter in the converter station so as to charge a secondary-side capacitor in the secondary-side conversion unit; sensing a charge amount of voltage of the secondary-side capacitor; charging a primary-side capacitor in a primary-side conversion unit of the DC converter through a transformer in the DC converter, on the basis of a result of the sensing of the charge amount of voltage of the secondary-side capacitor; sensing a charge amount of voltage of the primary-side capacitor; and applying a grid voltage to the converter station on the basis of a result of the sensing of the charge amount of voltage of the primary-side capacitor, wherein in the step of applying the grid voltage, the grid voltage may be applied only when the magnitude of the voltage of the primary-side capacitor is equal to a value obtained by dividing the grid voltage by the number of DC converters in the converter station.