159results 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.

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 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.

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.

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.

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.

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.

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

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.

Upon receiving a command signal to start the operating machinery, the main control unit outputs a start command to the first fuel cell module among multiple fuel cell modules. Upon detecting the start of the first fuel cell module, the main control unit outputs a start command to a second fuel cell module, which is different from the first fuel cell module.

A vehicle is provided that includes a traction motor. The traction motor includes a direct current capacitor (DC capacitor) and a printed power circuit board (power PCB) that converts the direct current power (DC power) received by the DC capacitor into alternating current power (AC power). The traction motor also includes a stator with windings. The traction motor further includes a first phase connection, a second phase connection, and a third phase connection arranged between the power PCB or power module and the stator windings. The first, second, and third phase connections provide an electrical connection between the power PCB or power module and the stator windings and are arranged in a triangular configuration to supply AC power to the stator windings.The traction motor also includes a triangular AC choke that encloses the first phase connection, the second phase connection and the third phase connection in the triangular configuration.

A fuel cell vehicle of the disclosure includes a cell stack including a plurality of unit cells stacked on one another, a boost converter configured to boost the output from the cell stack and to output the boosted output as main power, a supercapacitor configured to be charged with the power generated in the cell stack to generate auxiliary power, and a load terminal connected to the boost converter instead of the cell stack to receive the main power and connected to the supercapacitor to receive the auxiliary power so as to be driven.

The embodiment of the invention provides an all-in-one electric driving system applied to an electric vehicle. In the system, a power output terminal of a DC-DC conversion circuit in a vehicle-mounted charger is connected with a vehicle-mounted battery power supply terminal of an all-in-one electric driving system through a first switching circuit; a power input terminal of the motor controller is connected in parallel with a power output terminal of an AC-DC conversion circuit in the on-board charger and is connected with an on-board battery power supply terminal via a second switching circuit. The DC support capacitor is disposed in parallel with the power input terminal of the motor controller and the power output terminal of the AC-DC conversion circuit. In the charging mode, the first switching circuit is closed while the second switching circuit is turned off, and in the motor driving mode, the first switching circuit is turned off while the second switching circuit is closed. By means of the system, the direct current supporting capacitor can be shared by the motor controller and the vehicle-mounted charger, and therefore the system size is reduced, and the system cost is reduced.

The invention relates to a powerful air / electricity hybrid drive train with a high efficiency and range compatible with the standard use of a vehicle, regardless of the driving phase (starting the engine or uphill driving, stabilised driving, and braking or downhill driving). According to the invention, the drive train (100) comprises a compressed air tank (110) connected to a compressed-air piston engine (120) engaged with an electric generator (130) connected to an electrical storage relay (160) having a capacity of between 0.2 and 2.2 watt-hours per kilo of vehicle to be fitted therewith (Wh / kg of vehicle), the electrical storage relay being connected to the electric motor (140) engaged with the drive member (151, 152).

The invention relates to a control device for a battery-powered vehicle. A control device for a battery-powered vehicle is used in a battery-powered vehicle, controls a drive circuit, a voltage conversion device, a first relay, and a second relay, and controls the drive circuit and the first relay such that the voltage of a first capacitor is changed while the second relay is controlled to be turned off, and in this case, the voltage of the first capacitor is changed while the second relay is turned off. When the voltage of the connection line closer to the voltage conversion device than the second relay changes along with the voltage of the first capacitor, the second relay is determined to be stuck. As a result, adhesion of the second relay can be determined.

A drive control device includes a self-excited generator to generate and output electric power by being driven by an internal combustion engine, and a separately excited generator to generate and output electric power by being driven by the internal combustion engine when the separately excited generator is in an excited state. The drive control device further includes a first power converter to convert electric power fed from the separately excited generator via primary terminals into DC power and output the DC power via secondary terminals or to convert DC power fed via the secondary terminals into electric power to be fed to the separately excited generator and output the electric power via the primary terminals, and a capacitor connected between the secondary terminals of the first power converter.

The present disclosure relates to a battery system for powering at least one electric traction motor of a mining vehicle, the battery system comprising a first battery portion, a second battery portion; each battery part comprises one or more battery cells, one or more thermal management systems (TMSs), one or more main electrical boxes (MEBs) and one or more high-power DC-DC modules; wherein the first battery portion and the second battery portion are adapted to simultaneously provide a flow of electric power to the at least one electric traction motor; and wherein the flow of power to and / or from the first and / or second battery parts is controlled by at least one high power DC-DC module. The present disclosure also relates to a vehicle including the battery system and a method for controlling power flow in a battery system.

To provide an EV that uses no rare metal, is capable of quick charge and travels over an extended distance.SOLUTION: An EV is characterized in that electricity is supplied not by a battery but by a capacitor and that a formation element and power storage are combined.SELECTED DRAWING: Figure 2

A battery system for a vehicle according to an embodiment of the present invention comprises: a battery; at least one capacitor connected in parallel with the battery; a switch connected between the battery and the capacitor; and a battery control device for controlling an electrical connection between the battery and the capacitor by controlling operation of the switch in consideration of at least one of a control signal of the vehicle or state information of the battery.

When a command signal to start a working machine is received, a main control device issues an activation command to a first fuel cell module among a plurality of fuel cell modules. If activation of the first fuel cell module is detected, the main control device issues an activation command to a second fuel cell module, which is different from the first fuel cell module among the plurality of fuel cell modules.

The invention provides a vehicle-mounted multi-source self-power-generation power supply system and a multi-source power supply method thereof. Comprising the steps that S1, a micro piezoelectric power generation module is arranged in a micro vehicle chassis or a vehicle body; s2, micro wind power generation units are installed at the vehicle air inlet grille and the streamline position of the vehicle roof; s3, setting a dual-mode intelligent power supply management system, wherein the dual-mode intelligent power supply management system comprises a super-capacitor energy storage module and a lithium polymer battery pack; s4, adopting a voltage detection circuit to monitor the voltage states of the super capacitor energy storage module and the lithium polymer battery pack in real time; s5, a light energy collecting film is arranged in the micro space in the vehicle and attached to the inner side of a vehicle window or the surface of an instrument panel, and a lighting source in the vehicle is converted into supplementary electric energy; the system has the advantages that efficient cooperative power supply of multiple devices in a micro space is achieved, and the use convenience and the energy utilization efficiency of the electronic devices in the vehicle are remarkably improved.

The invention discloses a heavy-load train group operation control system hybrid energy storage management method and device, and the method comprises the steps: obtaining the speed and position of all heavy-load trains in a group, planning the speed and acceleration of each train, and calculating the future power demand of each train; according to the future power requirement of the train, online simulation is carried out through cloud digital twin, and a sliding mode surface parameter, a control law parameter and an event triggering threshold value are output; collecting a train bus voltage, and generating a total reference current required by future power by combining a given bus voltage and adopting a PI (Proportional Integral) controller; acquiring real-time states of the super capacitor and the lithium battery, and comparing the real-time states with an event triggering threshold value to judge whether to start a sliding mode controller or not; if the sliding mode controller is started, the total reference current is distributed to the lithium battery and the super capacitor, and a corresponding DC / DC driving control signal is generated. According to the method, the vehicle-mounted calculation and communication frequency can be reduced, and the flexibility and robustness of heavy-load train group energy management are improved.