Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
  • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
  • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C99/00—Subject matter not provided for in other groups of this subclass
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
  • B60L53/14—Conductive energy transfer
  • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
  • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/44—Methods for charging or discharging
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
  • H02M1/00—Details of apparatus for conversion
  • H02M1/32—Means for protecting converters other than automatic disconnection
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
  • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
  • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

• the invention relates to a method of prevention of fire development of traction accumulator systems in electric cars and hybrid cars which is carried out for the purpose of the subsequent extinguishing without the risk of their secondary re-ignition and an apparatus for carrying out this method.
• One of the options is also transferring the burning electric car using a lifting technology into a container half filled with water and its complete submersion under the water level in the tank, which is not possible in e.g. closed garages, in tunnels or under bridges or high-voltage wires.
• this extinguishing method requires a considerable water consumption since the water gets heated and evaporates, wherein also after the initial fire extinguishing, it must be observed for several days to check if it flare up again.
• a similar rather unrealistic possibility is represented by covering the burning vehicle by a large amount of sand or to locate it into a hermetically sealed container, and use water or inert gas for extinguishing.
• the document US 2022009519 discloses an electric car fire prevention system which comprises an accumulator status detector which detects the information about the accumulator status in order to monitor the accumulator fire in the vehicle as well as a controller which issues a control signal to remove the battery after detecting that an accumulator fire is about to break out and equipment for the accumulator removal in the vehicle configured to release the accumulator from the vehicle body in response to the control signal of the controller., in case a fire is detected, the prevention system will separate the accumulator from the vehicle which prevents fire spreading ail over the whole vehicle.
• the discharging circuit includes an external electric appliance with a resistance module and with its fan cooling, wherein it is further provided with a safety switch for starting the removal of the residual capacity from the traction accumulator system after its connection to the discharging circuit of the resistive load as well as an evaluative element with an indicator of the progress of the residual capacity decrease up to its zero value.
• the fan cooling of the external electric appliance conducts away the heat which is formed by converting the electrical energy of the traction accumulator system to the ambient surrounding of the whole equipment.
• the heat gain in the closed area will thus be performed in a predictable location and space, wherein the temperature of this heat gain will not exceed the temperature of vehicle combustion products.
• This equipment can be either mobile located on a chassis with its own drive unit or can be used otherwise, e.g. as stationary equipment of charging stations for electric cars.
• this equipment is provided with a reel for connecting wires.
• the apparatus for carrying out the method according to the invention or its resistive load with the discharging circuit of the traction accumulator system of the vehicle can be integrated directly into the structure of these vehicles, already during their manufacturing.
• this equipment can be activated even before the arrival of the fire brigade either directly by the car driver in the car or automatically in case the driver is absent.
• the summary of the electric car modification for carrying out the method according to the invention then lies in the fact that the electric car is provided with at least one connecting connector accessible from the exterior to remove the residual capacity from its traction accumulator system.
• the electric car is provided with two connecting connectors out of which one is accessible from the front part of the electric car and the ether one from its rear part in case of fire. This is important for enabling the free access to at least one of these connecting wires especially in garages, depending on how the car is parked, or if its front or rear part is accessible.
• the equipment in this exemplary embodiment is designed as mobile, transported to the fire scene in the intervening fire engine, wherein it is located on an unmarked chassis for its closer approach to the affected vehicle, and the chassis is provided with its own drive unit 11. consisting of a 5-kW combustion petrol engine and a reel 4a with connecting wires 4.
• this car is provided with an externally accessible connecting connector 5 located here in the rear part of the electric car 1 for connecting the connecting wires 4 to its traction accumulator system 2.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• Business, Economics & Management (AREA)
• Public Health (AREA)
• Emergency Management (AREA)
• Health & Medical Sciences (AREA)
• Sustainable Energy (AREA)
• Sustainable Development (AREA)
• Life Sciences & Earth Sciences (AREA)
• Manufacturing & Machinery (AREA)
• General Chemical & Material Sciences (AREA)
• Electrochemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Chemical & Material Sciences (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Secondary Cells (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=85685247

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (5)

• 2022
  • 2022-02-16 CZ CZ2022-74A patent/CZ202274A3/cs unknown
• 2023
  • 2023-02-14 WO PCT/CZ2023/000006 patent/WO2023155943A1/en not_active Ceased
  • 2023-02-14 EP EP23711398.0A patent/EP4587285A1/de active Pending

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