44 results about "Hybrid fuel" patented technology

Systems and methods for optimizing on-demand electric vehicle and mixed-fuel fleet operations use a learning-based system. In some embodiments, the method includes collecting real-time operational data, simulating service and charging processes, formulating assignment strategies, and adjusting assignments based on cost-to-go predictions in real time. The assignment strategy is updated in real time to account for parameters such as states of charge on the vehicles; changing context, such as weather or traffic; historical data; and constraints.

The invention relates to an intelligent control technology of an internal combustion engine, in particular to a multivariable cooperative control method of a dual-fuel engine, which realizes dynamic optimization matching of fuel injection and an air system through deep reinforcement learning and multivariable decoupling control technologies. According to the method, a dual-fuel engine multivariable cooperative control system based on deep reinforcement learning and dynamic decoupling is constructed, the dual-fuel engine multivariable cooperative control system is composed of an air system control layer, a multivariable decoupling layer and a fuel injection control layer, and the air system control layer controls the fuel injection control layer through a TD3-PID algorithm according to the vehicle speed, the vehicle speed and the vehicle speed. The rotating speed N, the torque T, the common rail pressure Prail, the fuel temperature Tfuel and the mixed fuel density rho mix are operated in real time to serve as state variables, data are collected and processed, and the dynamic adjustment amount of the electronic throttle valve is obtained; by means of a PSO-PID decoupling mechanism and a DDPG-PID intelligent control algorithm, decoupling regulation and control over the dual-fuel dynamic ratio, the EGR rate and the supercharging pressure according to working condition changes are achieved, the economical efficiency, the emission performance and the dynamic performance of the dual-fuel engine under the dynamic operation working condition are remarkably improved, and the method has the advantages of being high in self-adaptive capacity and high in robustness.

The invention discloses a fuel cell membrane electrode performance attenuation prediction method and system based on deep learning, and the method comprises the steps: obtaining the operation data of a fuel cell, carrying out the data feature preprocessing, and obtaining the multi-dimensional time sequence features of the operation data of the fuel cell; an optimal hyper-parameter combination is selected through Bayesian optimization, and a hybrid fuel cell voltage prediction model is constructed in combination with a multi-layer sensor, a gating circulation unit and a multi-head attention mechanism; and inputting the multi-dimensional time sequence characteristics of the fuel cell operation data into the hybrid fuel cell voltage prediction model for voltage prediction to obtain a fuel cell voltage prediction value, thereby realizing fuel cell membrane electrode performance attenuation prediction. According to the invention, short-term fluctuation and long-term evolution trends of voltage attenuation can be captured at the same time, and efficient and accurate prediction of the voltage attenuation process of the fuel cell is realized. The fuel cell membrane electrode performance attenuation prediction method and system based on deep learning can be widely applied to the field of fuel cell voltage prediction.

A hybrid fuel cell vehicle (10), comprising a vehicle body (100), a chassis (120), and an accommodating unit (110) located above the chassis (120); a vehicle-mounted power system (122), which is arranged on the chassis (120) and is used for providing kinetic energy to the hybrid fuel cell vehicle (10); an emergency power supply apparatus (126), which is arranged on the chassis (120) and is used for outputting power outward; a fuel cell module (124), which is arranged on the chassis (120) and is used for outputting power to the vehicle-mounted power system (122) and the emergency power supply apparatus (126); a hydrogen production module (112), which is arranged on the accommodating unit (110) and is used for providing hydrogen to the fuel cell module (124); and a storage box (114), which is arranged on the accommodating unit (110) and is used for storing a raw material for hydrogen production and providing the raw material for hydrogen to the hydrogen production module (112). By means of such arrangement, it is not necessary to additionally replenish other fossil fuels such as gasoline and diesel oil, and the hybrid fuel cell vehicle has flexibility in use and is applicable to different scenarios, thus reducing the costs of additionally purchasing different apparatuses.

A dual fuel system includes a first fuel supply of a first fuel, a second fuel supply of a second fuel, and a variable-output fuel pump. A fuel injector in the dual fuel system includes a combined-fuel outlet passage, a nozzle check movable to open and close the combined-fuel outlet passage to nozzle outlets, and a check valve positioned at least partially in a first fuel passage connected to the first fuel supply by way of the variable-output fuel pump. The first fuel may include a compression-ignition fuel and the second fuel may include an alcohol fuel. Varying output of the fuel pump during an off-cycle of a cam actuating a plunger in the fuel injector meters the first fuel to the fuel injector for forming a fuel charge for injection. Related apparatus and methodology is also disclosed.

The invention discloses a mixed fuel engine injection control method and device and a medium, and relates to the technical field of engine control. The method comprises the steps that a target air-fuel ratio and an actual air-fuel ratio are obtained; calculating a first deviation between the target air-fuel ratio and the actual air-fuel ratio; inputting a first calculation array corresponding to the current operation condition, a previous second deviation and a mixed fuel injection adjustment coefficient in a previous preset step length into a combustion adjustment transfer model to obtain a second deviation; and the second calculation array corresponding to the current operation condition, the first deviation and the second deviation are input into the control model, a mixed fuel injection adjustment coefficient is obtained, and under the condition that it is determined that the engine control mode is in the closed-loop control state, the injection amount of mixed fuel is obtained based on the mixed fuel injection adjustment coefficient. The engine control method and device are used for solving the problem that in the prior art, the engine is poor in operation stability and safety during multi-fuel combustion, and safe and accurate control over the engine is achieved.

Methods for blending transmix containing distillates such as diesel fuel into certified gasoline streams that can be burned in internal combustion engines without affecting the certification of the gasoline or the efficiency or operability of the engine.

A hybrid fuel cell system is disclosed. The hybrid fuel cell comprises a fuel cell adapted to supply power to a load. The hybrid fuel cell further comprises an Electrical Air Compressor (EAC) unit operatively coupled with the fuel cell. Also, the hybrid fuel cell comprises an auxiliary power source connected to the EAC unit via a Direct Current to Alternative Current (DC-AC) converter. Furthermore, the hybrid fuel cell comprises a converter circuit configured to perform at least one of enable the auxiliary power source to supplement the fuel cell to provide collective power supply to a load during the initialization phase of the fuel cell, enable the fuel cell to provide either the input power supply or a supplement power supply to the EAC unit during an operational phase of the fuel cell, or enable the fuel cell to charge the auxiliary power source.

The present invention provides an intelligent control method, device, equipment and product for a hybrid fuel cell. The hybrid fuel cell includes: an electric motor and a fuel cell, and the electric motor and the fuel cell are respectively connected to a power mechanism of a vehicle for providing electric energy to the power mechanism. The method includes: obtaining the life cycle characteristics of the fuel cell, and adjusting the electric energy output ratio parameters of the fuel cell and the electric motor according to the life cycle characteristics of the fuel cell, wherein the fuel cell and the electric motor provide electric energy to the power mechanism according to the electric energy output ratio parameters. By evaluating the life cycle of the fuel cell and adjusting the power supply of the fuel cell and the electric motor to the vehicle according to the life cycle of the fuel cell, the present invention maximizes the output power of the fuel cell on the one hand, and ensures the safety of vehicle operation while ensuring the life of the fuel cell on the other hand.

A dual fuel system includes a first fuel supply of a first fuel, a second fuel supply of a second fuel, and a variable-output fuel pump. A fuel injector in the dual fuel system includes a combined-fuel outlet passage, a nozzle check movable to open and close the combined-fuel outlet passage to nozzle outlets, and a check valve positioned at least partially in a first fuel passage connected to the first fuel supply by way of the variable-output fuel pump. The first fuel may include a compression-ignition fuel and the second fuel may include an alcohol fuel. Varying output of the fuel pump during an off-cycle of a cam actuating a plunger in the fuel injector meters the first fuel to the fuel injector for forming a fuel charge for injection. Related apparatus and methodology is also disclosed.

The invention relates to the technical field of fluid mechanics control, and discloses a mixing enhancing device and method for achieving pulse disturbance through plasma excitation, the mixing enhancing device comprises a combustion chamber metal structure, a fuel injection hole is formed in the upstream of an inner cavity of the combustion chamber metal structure, and an electrode assembly and an electric switch are arranged on the downstream of the combustion chamber metal structure; the electrode assembly is arranged in an inner cavity of the combustion chamber metal structure; the electrical switch is externally connected to the electrode assembly from the combustion chamber metal structure; fuel is injected into the inner cavity of the metal structure of the combustion chamber through the fuel injection hole and mixed with air flow, meanwhile, the electrode assembly is controlled and adjusted through the electrical switch, then generation and annihilation of a multi-channel sliding arc plasma discharge area are achieved through high frequency, high-frequency pulse disturbance on a flow field is achieved, and mixing of the fuel and the air flow is enhanced. Through the collaborative design of the fuel injection hole and plasma excitation, high-frequency pulse disturbance is applied to a flow field to enhance fuel mixing, and the technical problems that the structure is heavy and the reliability is poor are solved.

A fuel grain assembly for a hybrid rocket engine includes a hybrid fuel grain including fuel grain material, wherein an outermost portion of the fuel grain material defines an outer surface of the fuel grain, and wherein the fuel grain material includes a polymer based rocket fuel material; and a solid propellant material disposed in contact with the fuel grain material of the hybrid fuel grain, wherein the solid propellant material includes an oxidizer and a binder material, wherein a hollow combustion port extends through the fuel grain assembly, wherein at least a portion of a wall of the hollow combustion port is defined by the solid propellant material.

1. Name of the Design Product: Tricycle (Hybrid Electric). 2. Use of the Design Product: For carrying people and transporting goods. 3. Design Key Points of the Design Product: Lies in the combination of shape and pattern. 4. Picture or Photograph Most Indicating the Design Key Points: Front View. 5. The bottom surface of this design product is a part that is not easily seen or not seen during use, and the bottom view is omitted.

The invention provides a composite biomass fuel for a fuel cell as well as a preparation method and application of the composite biomass fuel, and relates to the technical field of fuel cells. The composite biomass fuel for the fuel cell comprises a biomass material, molten carbonate and basic carbonate. According to the composite biomass fuel for the fuel cell, the electricity generation efficiency of the molten carbonate-solid oxide mixed type fuel cell can be remarkably improved, and an innovative technical solution is provided for efficient utilization of the biomass fuel cell.

A propulsion system for an air vehicle includes a fan system that includes a fan that is coupled to a fan drive electric motor for generating a fan discharge airflow, an augmentor where fuel is mixed with a portion of the fan discharge airflow to generate a propulsive flow in a first operating configuration, a bypass duct for directing the fan discharge airflow into the augmentor, a duct blocker for selectively closing the bypass duct to the fan discharge airflow, a liquid oxygen system that is configured to inject liquid oxygen into the augmentor to mix with the fuel when the fan discharge airflow is closed by the duct blocker, the mixture of fuel flow and liquid oxygen generates the propulsive flow in a second operating configuration, and an electric power generation system is coupled to drive the fan drive electric motor.

A combustor for a turbine engine includes a combustion chamber for combustion of fuel and air, and the combustion of fuel and air produces heat. The mixer assembly is disposed at the front end of the combustor for receiving and mixing fuel and air and injecting the fuel and air into the combustion chamber for combustion. An insulating member is attached to the at least one structural member, and the insulating member at least partially defines a combustion chamber. The insulating member has a functional thickness and is fastened to the at least one structural member without reducing the functional thickness of the insulating member.

A liquid fuel or hybrid fuel burner and method of operating the burner are described. The combustion air and / or NOx reducing medium are introduced at more than one location in the burner. A portion of the combustion air and the NOx reducing medium can be injected into the primary combustion zone through the NOx reducing medium conduit which surrounds the fuel injector which injects atomized liquid fuel or fuel gas into the primary combustion zone. Another portion of the combustion air and the NOx reducing medium can be introduced into the primary combustion zone through a passage in the burner tile surrounding the NOx reducing medium conduit. A third portion of NOx reducing medium can be injected outside the burner tile. NOx reducing medium can be introduced into any combination of the three locations.

The application relates to a power determination method and device for a hybrid fuel cell vehicle and a vehicle, and relates to the technical field of vehicles. At least the technical problem of unreasonable power distribution in the related art is solved. The method comprises the following steps: acquiring vehicle power demand information, a first current temperature of a fuel cell and a second current temperature of a power battery. A first power constraint condition of the fuel cell is obtained based on the first current temperature and a first power constraint matching strategy. A second power constraint condition of the power battery is obtained based on the second current temperature and a second power constraint matching strategy. The power of the fuel cell and the power of the power battery are determined based on the vehicle power demand information, the first power constraint condition and the second power constraint condition. In this way, the power distribution of the fuel cell and the power battery can be more reasonable.

A control device (CL) for a gas turbine (GT) according to the present disclosure comprises: a combustor (2) having a burner (15) that burns an air-fuel mixture (F) including a main fuel (F1) and at least one auxiliary fuel (F2) having a slower burning speed than that of the main fuel (F1); a fuel flow rate adjustment unit (50) that adjusts a flow rate of the air-fuel mixture (F) supplied to the burner (15); and a load disconnection signal reception unit (51) that receives a load disconnection signal when disconnecting a load from an external power system. The fuel flow rate adjustment unit (50) reduces the fuel supply to the burner (15) after maintaining the fuel supply for a predetermined time when the co-firing ratio, which is the volume flow rate ratio of the main fuel (F1) to the auxiliary fuel (F2), is less than a predetermined value and the load disconnection signal is received, and reduces the fuel supply to the burner (15) when the co-firing ratio is equal to or greater than the predetermined value and the load disconnection signal is received.

The invention discloses a bipolar hydrogen production acid-base hybrid fuel cell, and belongs to the technical field of fuel cells. The bipolar hydrogen production acid-base hybrid fuel cell comprises a bipolar plate, a negative electrode, a positive electrode, a cation exchange membrane, a positive electrode electrolyte and a negative electrode electrolyte, wherein the positive electrode electrolyte is an acidic electrolyte; the negative electrolyte is alkaline electrolyte; the alkaline electrolyte contains formaldehyde; the negative electrode is loaded with an alkaline formaldehyde selective electrocatalytic oxidation catalyst; and the positive electrode is loaded with an acidic electrocatalytic hydrogen evolution catalyst. The bipolar hydrogen production acid-base hybrid fuel cell disclosed by the invention does not need an external oxidant or a high-temperature condition, can directly utilize the low oxidation-reduction potential (-0.2 V vs.RHE) of formaldehyde to realize efficient conversion, and avoids the problems of secondary pollution and carbon emission from the source.

The utility model belongs to the technical field of rail transport vehicles, and provides a dual-power mixed fuel internal combustion electric drive tractor which comprises a frame, a three-axle bogie I and a three-axle bogie II are arranged on the lower portions of the two ends of the frame respectively, and a traction motor I and a traction motor II are symmetrically arranged on the lower portion of the frame and provide power for the three-axle bogie I and the three-axle bogie II respectively. A machine room I, a heat dissipation chamber, a machine room II and an equipment room are sequentially arranged on the upper portion of the frame, and a power source composed of a methanol diesel engine and a generator is arranged in each of the machine room I and the machine room II. A methanol fuel tank is arranged in the heat dissipation chamber, a rectifying device is arranged in the equipment room, a diesel tank is arranged in the middle of the lower portion of the frame, a methanol diesel engine drives a generator to operate, and alternating current generated by the generator is supplied to the two traction motors after being integrated through the rectifying device. According to the utility model, the diesel locomotive consisting of two sets of identical power and transmission systems is adopted, and the methanol diesel engine is adopted, so that the use cost is reduced, and the emission of carbon dioxide is reduced.

The invention relates to a hybrid fuel gas turbine engine, a method for controlling a hybrid fuel gas turbine engine, and a burner assembly for a hybrid fuel gas turbine engine. A gas turbine engine includes a compressor (2), a combustor (3), a turbine (5), a fuel supply system (6), and a control system (7). The burner assemblies (10) of the burners (3) each have a first burner (16) and a second burner (15) which define a first reaction zone (Za) and a second reaction zone (Zp), respectively, and which are arranged coaxially along an axis (B), with the first burner (16) surrounding the second burner (15) and the first reaction zone (Za) being located radially outside the second reaction zone (Zp). The fuel supply system has a first line (6a) that supplies a first fuel (F1) containing ammonia to one of the first burner and the second burner, and a second line (6b) that supplies a second fuel (F2).

The invention provides a turbine composite fuel cell power generation system and an operation method, and the system comprises a proton exchange membrane fuel cell which enables hydrogen and air to generate electrochemical reaction for power generation; a combustion chamber; the turbine generator is respectively communicated with the proton exchange membrane fuel cell and the combustion chamber and is used for conveying air to the proton exchange membrane fuel cell and receiving combustion gas after combustion so as to enable a turbine to do work; the heat exchanger is respectively communicated with the turbine generator, the combustion chamber and the proton exchange membrane fuel cell; wherein the heat exchanger is used for receiving air output by the turbine generator and gas output by the proton exchange membrane fuel cell, so that heat exchange is carried out between the air and the gas, the air conveyed into the proton exchange membrane fuel cell is cooled, and meanwhile, the gas entering the turbine generator is heated. Through the system provided by the invention, the problem of single application scene caused by long starting time and low variable working condition response speed of the existing composite power generation system is solved.

Systems and methods for optimizing on-demand electric vehicle and mixed-fuel fleet operations use a learning-based system. In some embodiments, the method includes collecting real-time operational data, simulating service and charging processes, formulating assignment strategies, and adjusting assignments based on cost-to-go predictions in real time. The assignment strategy is updated in real time to account for parameters such as states of charge on the vehicles; changing context, such as weather or traffic; historical data; and constraints.

The invention discloses a flight power distribution method for a hydrogen-lithium hybrid fuel cell of a multi-rotor unmanned aerial vehicle. The flight power distribution method comprises the following steps: collecting flight mission parameters, environment parameters and load change parameters in real time; initializing a power distribution strategy of the hydrogen fuel cell and the lithium battery based on deep reinforcement learning; then, combining lithium battery charge-discharge cycle data and fuel battery start-stop times to construct a life prediction model, and dynamically adjusting a power distribution proportion according to the residual life; meanwhile, a combined health management module is added to monitor the states of the fuel cell and the lithium battery, so that over-discharge or over-charge is avoided; and finally, according to the real-time data and the feedback of the joint health management module, continuously optimizing a power distribution strategy by using deep reinforcement learning, and realizing dynamic balance among the targets of endurance, efficiency, safety and the like. The flight performance and the energy utilization efficiency of the multi-rotor unmanned aerial vehicle can be improved, the service life of the system is prolonged, and the flight safety is ensured.

The invention discloses an insulation detection method for a hybrid power fuel cell vehicle, which comprises the following steps: after a VCU is powered on, detecting the closed state of a high-voltage loop relay, and carrying out insulation detection on a power battery high-voltage loop by a BMS (Battery Management System) to obtain a first insulation detection value and feeding back the first insulation detection value to the VCU; then, according to any one of the current required power of the whole vehicle, the maximum output power of the power battery and the voltage of the power battery, switching between a pure power mode and a hybrid power mode is carried out, and only one of the BMS or the FCU is selected to execute insulation detection; the VCU compares the received insulation detection value with a preset insulation alarm threshold value, and when the insulation detection value is lower than the alarm threshold value, an insulation fault alarm signal is sent out, and a forced pure electric mode or limited power operation is executed according to the current operation mode. The method solves the problem that the whole vehicle is powered off mistakenly due to the fact that detection of the high-voltage section of the power battery is not accurate, meanwhile, the service life of the fuel battery is prolonged, and the high-voltage safety of the whole vehicle is improved.

The invention relates to a hybrid fuel cell system and a method of operating the same. A hybrid fuel cell system is disclosed. The hybrid fuel cell includes a fuel cell adapted to supply power to a load. The hybrid fuel cell also includes an electric air compressor (EAC) unit operatively coupled with the fuel cell. Further, the hybrid fuel cell includes an auxiliary power source connected to the EAC unit via a direct current to alternating current (DC-AC) converter. Further, the hybrid fuel cell includes a converter circuit configured to perform at least one of: during an initialization phase of the fuel cell, enable the auxiliary power source to replenish the fuel cell to provide a collective power supply to the load; during an operating phase of the fuel cell, enabling the fuel cell to provide an input power supply or a supplemental power supply to the EAC unit; or enabling the fuel cell to charge the auxiliary power source.

The invention discloses an ammonia fuel modified fusion fuel preparation system and a fuel verification method. The system comprises a gas supply unit, an ammonia supply unit, an ammonia-hydrogen mixing unit, an ammonia-hydrogen aftertreatment unit, a fuel injector and a fuel verification unit. The ammonia-hydrogen mixing unit injects hydrogen and liquid ammonia into the ammonia-hydrogen mixing unit to form liquid ammonia-hydrogen fused fuel; an outlet of the ammonia-hydrogen mixing unit is respectively communicated with the ammonia-hydrogen post-processing unit, the fuel injector and the outside; and the ammonia-hydrogen post-treatment unit absorbs ammonia gas from the ammonia-hydrogen mixing unit and the fuel injector, and then hydrogen purification and storage are carried out. The fuel verification unit is used for receiving and measuring the fuel ejected from the fuel injector so as to verify the hydrogen content of the fuel; and comparing the actually obtained hydrogen content with the preset theoretical hydrogen content of the fusion fuel to verify the influence of pressure fluctuation caused in the fusion fuel application process on the actual value of the hydrogen solubility, thereby preparing the corresponding ammonia-hydrogen fusion fuel according to the working requirements of different ammonia-hydrogen engines.

This invention discloses an insulation detection method for hybrid fuel cell vehicles, comprising: after the VCU is powered on, detecting the closed state of the high-voltage circuit relay; the BMS performs insulation detection on the high-voltage circuit of the power battery, obtaining a first insulation detection value and feeding it back to the VCU; then, based on any one of the current vehicle power demand, the maximum output power of the power battery, and the power battery voltage, switching between pure electric and hybrid modes, and selecting only one of the BMS or the FCU to perform insulation detection; the VCU compares the received insulation detection value with a preset insulation alarm threshold; when the insulation detection value is lower than the alarm threshold, it issues an insulation fault alarm signal and executes forced pure electric mode or power-limited operation according to the current operating mode. This invention solves the problem of false power-off of the vehicle caused by inaccurate detection of the high voltage section of the power battery, while improving the life of the fuel cell and the high-voltage safety of the vehicle.

This invention discloses a bipolar hydrogen-producing acid-base hybrid fuel cell, belonging to the field of fuel cell technology. The bipolar hydrogen-producing acid-base hybrid fuel cell of this invention includes bipolar plates, a negative electrode, a positive electrode, a cation exchange membrane, a positive electrode electrolyte, and a negative electrode electrolyte; wherein the positive electrode electrolyte is an acidic electrolyte; the negative electrode electrolyte is an alkaline electrolyte; the alkaline electrolyte contains formaldehyde; the negative electrode is supported with an alkaline formaldehyde selective electrocatalytic oxidation catalyst; and the positive electrode is supported with an acidic electrocatalytic hydrogen evolution catalyst. The bipolar hydrogen-producing acid-base hybrid fuel cell of this invention does not require external oxidants or high-temperature conditions, and can directly utilize the low redox potential (-0.2V vs. RHE) of formaldehyde to achieve efficient conversion, thus avoiding secondary pollution and carbon emissions at the source.