9398results about "Propulsion by batteries/cells" patented technology

A viscosity reduction system includes: a dispenser including: an inlet configured to receive a fluid; an outlet configured to dispense the fluid onto a surface; and a flow channel that fluidly connects the inlet with the outlet; and a vibrating device that directly contacts the dispenser at one or more locations and that is configured to vibrate the dispenser and the fluid when power is applied to the vibrating device.

A battery assembly mounting structure for a vehicle includes: a mounting bushing provided in a battery assembly to internally form a communication space in up and down directions; a fastening bolt installed to penetrate the space formed by the mounting bushing in the up and down directions; and a swappable assembly. The swappable assembly is elastically coupled to the mounting bushing and elastically supports the mounting bushing and the fastening bolt between the mounting bushing and the fastening bolt while elastically allowing the fastening bolt to move in a lengthwise direction.

A vertical take-off or landing (VTOL) aircraft is disclosed that includes a propulsion system comprising at least four tilting propulsion assemblies and two or more lifting propulsion assemblies. Actuation of the tilting mechanisms can convert the aircraft from a hover configuration, in which all propellers produce thrust generally upward to counteract the aircraft's weight, to a forward flight configuration, in which the four or more tilting propellers produce thrust generally in a forward direction parallel to the fuselage to overcome drag in cruise flight and the lifting propellers produce no thrust or a level of thrust generally less than that required in the hover configuration.

This disclosure provides an improved universal interchangeable battery for electric vehicles forming part of a battery swapping ecosystem that includes electric vehicles, swappable batteries, a charging / swap station, a battery adaptor for reliable charging and communication, and a mobile application for managing battery swapping within a fleet and a network of charging stations, enabling efficient and user-friendly battery exchanges.

The invention discloses an extended-range hybrid propulsion double-source dynamic coupling energy management method, which comprises the following steps: carrying out global physical modeling on a double-source power system and a flight scene, and establishing a double-source dynamic coupling model; designing a reinforcement learning physical constraint reward function, performing optimization training on each coefficient of the reward function by adopting a QMPSO algorithm, and outputting an optimized reward function coefficient; a qualified double-source dynamic coupling model is verified, and a power distribution coefficient is optimized; outputting the optimal power distribution coefficient of the battery and the range extender; the superiority of the dual-source power cooperative control strategy in the aspects of flight economy, operation stability and system life guarantee is verified through multi-dimensional comparative analysis of each performance index. Cooperative power distribution of the battery and the range extender is achieved through dynamic coupling modeling and reinforcement learning, the flight scene load requirement is met, the system energy efficiency is improved, and the service life of parts is prolonged.

A battery pack according to an embodiment of the present invention may include a base plate, a battery module disposed on the base plate and having a first vent hole on an upper surface thereof, a vent cover coupled to an upper surface of the battery module, a pack cover covering the vent cover, and an elastic member disposed between the vent cover and the pack cover.

The invention relates to a battery pack arrangement (40) for a vehicle (10) comprising a battery pack (43, 47, 49) having a first battery module (64) with a first set of battery cells (84), a second battery module (67) with a second set of battery cells (87), and a thermal management member (70) arranged there between, wherein the first battery module and the second battery module are arranged on opposite sides (72, 74) of the thermal management member (70), the thermal management member having a first thermally conductive surface (73) for regulating a temperature of the first battery module and a second thermally conductive surface (75) for regulating a temperature of the second battery module, wherein the battery pack arrangement further comprises a suspension attachment (80) configured to attach the battery pack arrangement in a generally vertical orientation to a vehicle frame (20) of the vehicle.

A method and control system for a fuel cell system for a fuel cell vehicle comprising the fuel cell system comprising at least one fuel cell stack, and a cooling system. Processing circuitry of the control system may be configured to, for each fuel cell system power output in a plurality of fuel cell system power outputs, determine a cooling electrical power value indicative of cooling electrical power required to be supplied by the fuel cell system to the cooling system for rejecting output heat generated at least by the fuel cell system, determine a net electric power output value indicative of net electric power output that can be supplied from the fuel cell system to one or more electric power consumers when operating to produce the fuel cell system power output, and using the net electric power output value for determining a fuel cell system output level threshold for the fuel cell system.

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.

The present application discloses a quick-swapping battery pack and an electric vehicle, the quick-swapping battery pack is detachably provided on the longitudinal beam, the top of the quick-swapping battery pack is provided with a groove, the quick-swapping battery pack includes a battery pack box and an battery cell, the battery pack box is provided with several locking connection structures, several locking connection structures are located in the groove, the battery pack box is provided with several battery cell holding cavities for placing the battery cell, at least some of the battery cell holding cavities are distributed on both sides of the groove, the battery pack box is connected to the longitudinal beam, reducing the center of gravity of the battery pack and increasing the stability of the battery pack, and enhancing a larger space for vehicle smoothness and safety.

An electric vehicle including a frame; at least one ground-engaging member operatively connected to the frame; an electric motor operatively connected to the at least one ground-engaging member; an electric powerpack supported by the frame, the powerpack including: a battery pack defining a battery cooling channel; and a plurality of battery cells housed in the battery housing; a charger defining a charger cooling channel; an inverter including an inverter cooling channel, the battery cooling channel, the charger cooling channel, and the inverter cooling channel being fluidly connected together by rigid fluid connections; radiators fluidly connected to the battery cooling channel; a cooling circuit being formed at least in part by the battery cooling channel, the charger cooling channel, the inverter cooling channel, and the at least one radiator; and a pump fluidly connected to the cooling circuit for pumping liquid coolant through the cooling circuit.

Systems and methods for operating a vehicle power system are described. The vehicle power system includes an inverter and an electric machine. Switches and a diode are arranged in a way that allows a traction battery to be charged by either a lower voltage charger or a higher voltage charger. Additionally, the switches and diode allow the vehicle power system to heat the traction battery so that the traction battery may operate in a desired temperature range.

Responsive to a voltage across a capacitor being greater than a voltage across a traction battery, a controller may open switches such that charge current from a DC charger flows through a diode to the traction battery without following through coils of an electric machine and without flowing through an inverter.

This document describes, among other things, a vehicle power system that includes a traction battery, a six-phase inverter divided into two groups of six switches, a six-phase motor, and a pair of switches. In drive mode, the switches configure the inverter to connect the traction battery and the motor. In plug-in mode, the system reconfigures so that one group of switches connects an AC source to the motor, while the other group connects the motor to the traction battery.

Aspects of the present disclosure generally relate to systems and methods for flight control of aircrafts driven by electric propulsion systems and in other types of vehicles. In some embodiments, a system of an aircraft is disclosed, configured to determine one or more desired commands for the aircraft, retrieve engine information for at least one electric propulsion unit (EPU) of a plurality of EPUs of the aircraft, wherein the engine information includes at least one time-based metric for temperature associated with the at least one EPU, generates control commands based on the received engine information, and controls effectors according to the generated control commands to meet the desired commands of the aircraft.

A battery module according to the present disclosure may include: a plurality of battery cells; and a cooling bus-bar unit including a conductive portion configured to electrically connect the plurality of battery cells to each other and a cooling portion formed integrally with the conductive portion and disposed between the battery cells so as to absorb heat from the battery cells.

The invention relates to a power battery safety protection device of an electric trackless rubber-tyred vehicle, and relates to the technical field of battery safety, the power battery safety protection device is installed on a vehicle body where a power battery is located and comprises a battery rack and a cooling assembly, the battery rack comprises a supporting rack and a sliding rack, the supporting rack is connected to the vehicle body, and the side edge of the supporting rack is warped; the sliding rack is arranged on the supporting rack in a sliding mode, the power battery is installed on the sliding rack, the cooling assembly comprises at least two first spray heads and at least two second spray heads, the first spray heads are located on the two sides of the power battery respectively, and the second spray heads are located at the two ends of the power battery respectively. The first spray head can horizontally swing and vertically swing, the first spray head has two spraying modes of cylindrical spraying and fan-shaped spraying, the spraying range of the first spray head covers the two sides, close to the first spray head, of the power battery, and the spraying range of the second spray head covers the end face of the power battery. The spraying effect of the cooling medium on the power battery is improved.

A battery system includes a cover including a plurality of guide apertures. The battery system includes a thermal barrier disposed adjacent the plurality of guide apertures of the cover. The battery system includes a stiffening structure disposed between the cover and the thermal barrier. The plurality of guide apertures guides emissions through the cover, and the thermal barrier absorbs heat energy generated by the emissions. The battery system may further include a plurality of battery cells, and the thermal barrier may be disposed between the plurality of battery cells and the cover. Each of the plurality of guide apertures of the cover may be aligned with a vent of one of the plurality of battery cells. The stiffening structure may also include cutouts each shaped to correspond to at least one vent. The stiffening structure may also include indentions to press the thermal barrier against the plurality of battery cells.

A battery module according to the present invention includes a cell assembly including a plurality of stacked battery cells; a module case that houses the cell assembly in an internal space; and a cover unit coupled to an outer surface of the module case and having a barrier layer disposed between the module case and the cover unit to block the entry and exit of flames and reduce heat transfer, wherein the barrier layer may be foamed and coupled to the cover unit, and may be provided integrally with the cover unit.

A solid-state battery, preferably a pouch cell, includes a cathode including cathode active material comprising Li ions, graphene, and optionally a binder; an electrolyte; and an anode, preferably a lithium anode, wherein said electrolyte is positioned in between said cathode and said anode.

A coordinated optimization method and system for a hydrogen fuel cell vehicle, a device, and a medium. The method includes: determining a target output voltage and a target output current corresponding to a stack in a hydrogen fuel cell vehicle; determining a sub-stack efficiency score corresponding to one of sub-stacks, and determining a sub-stack stability score corresponding to the sub-stack; obtaining a comprehensive score of the sub-stack efficiency score and the sub-stack stability score, and determining a primary stack and a secondary stack from the sub-stacks according to a comprehensive score result; generating, according to the target output voltage and the target output current, a primary stack output parameter corresponding to the primary stack and a secondary stack output parameter corresponding to the secondary stack; and dynamically adjusting an operating state of the primary stack, and dynamically adjusting an operating state of the secondary stack.

The invention discloses an extended-range hybrid power system and a control method therefor, and a crane, and belongs to the technical field of construction machinery. The extended-range hybrid power system comprises a power battery, an all-in-one controller, a first motor, a second motor and an engine, wherein the first motor is connected to a lower traveling mechanism; the engine is connected to the second motor, and the second motor is connected to an upper operating mechanism; the power battery, the first motor and the second motor are connected to the all-in-one motor, and the all-in-one motor is connected to an external power supply.

A battery cell, a battery, and an electric device. The battery cell includes a housing assembly, an electrode assembly, and a current collecting member. The housing assembly includes an electrode lead-out portion for inputting or outputting electric energy. The electrode assembly is accommodated in the housing assembly, where the electrode assembly includes a body and a tab, the tab is disposed on the body, and a material of the tab is different from that of the electrode lead-out portion. The current collecting member includes an additional portion having a same material as that of the electrode lead-out portion and a body portion having a same material as that of the tab, the additional portion is connected to the body portion, the additional portion is connected to the electrode lead-out portion through welding, and the body portion is connected to the tab through welding.

The invention provides a range extender anti-reverse control method, device and system, a medium and a program product, and relates to the technical field of new energy vehicles. The method comprises the steps that a power generation power request sent by a vehicle control unit is received; determining a rotating speed instruction and a torque instruction according to the generated power request; the rotating speed instruction is sent to an engine controller to control the rotating speed of an engine, and the torque in the torque instruction and the smaller value in the external characteristic torque, corresponding to the rotating speed in the rotating speed instruction, of the engine are sent to a generator controller to control the torque of a generator; and according to the load percentage, fed back by the engine controller, of the engine at the current rotating speed, torque amplitude limiting control is conducted on the generator.

A vehicle control system and method based on an air flow rate, control introduction of outside air based on an estimated driving current value of a blowing device, obtained through a current model preset based on a calm wind state, and an estimated air flow rate value of an inlet, obtained through an air flow rate model preset based on an outside wind state.

A power-on method of a battery system, the battery system and a power-using device can improve the battery replacement performance of the battery system. The battery system includes a plurality of battery replacement units connected in parallel, wherein each battery replacement unit includes a battery and a first battery management unit thereof, and the battery system further includes a second battery management unit connected with the first battery management units in the plurality of battery replacement units. The power-on method is executed by the second battery management unit, and the power-on method includes: receiving a first power-on signal sent by a vehicle control unit; and in response to the first power-on signal, sending a second power-on signal to the first battery management unit, the second power-on signal being used to instruct the first battery management unit to control the corresponding battery replacement unit to be high-voltage powered on.

A battery assembly for an electric vehicle includes two spaced-apart longitudinal profiles extending in a length direction L, interconnected to a front and a rear transverse beam. At least three beam shaped battery modules are interconnected along their longitudinal sides via a plate-shaped interconnecting member, and extend in the length direction, to be attached to an inner surface of the front transverse beam via a bracket. Each battery module is provided with cooling channels extending in the length direction L and having an inlet situated between a transverse end face of the module and the inner surface of the front transverse beam. A water inlet duct extends from an external side the front transverse beam in a central area situated between the brackets, for connecting to a coolant inlet of the central battery module.