US20180201154A1 - Vehicle - Google Patents

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Publication number
US20180201154A1
US20180201154A1 US15/866,789 US201815866789A US2018201154A1 US 20180201154 A1 US20180201154 A1 US 20180201154A1 US 201815866789 A US201815866789 A US 201815866789A US 2018201154 A1 US2018201154 A1 US 2018201154A1
Authority
US
United States
Prior art keywords
battery
vehicle
normal
frame member
collision
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/866,789
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English (en)
Inventor
Masao Omura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA reassignment TOYOTA JIDOSHA KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OMURA, MASAO
Publication of US20180201154A1 publication Critical patent/US20180201154A1/en
Priority to US16/586,160 priority Critical patent/US10752105B2/en
Abandoned legal-status Critical Current

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    • B60L11/1877—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K8/00—Arrangement or mounting of propulsion units not provided for in one of the preceding main groups
    • B60L11/1879—
    • B60L11/1898—
    • 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
    • B60L3/0007—Measures or means for preventing or attenuating collisions
    • B60L3/0015—Prevention of collisions
    • 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
    • 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
    • B60L3/04—Cutting off the power supply under fault conditions
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • 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
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04664—Failure or abnormal function
    • H01M8/04671—Failure or abnormal function of the individual fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
    • H01M8/2475—Enclosures, casings or containers of fuel cell stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0427—Arrangement between the seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • B60R16/0215—Protecting, fastening and routing means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/115—Electric wiring; Electric connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04701—Temperature
    • H01M8/04731—Temperature of other components of a fuel cell or fuel cell stacks
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the present disclosure relates to a vehicle including a plurality of batteries.
  • the disclosure provides a vehicle that makes solely some batteries among a plurality of batteries available at the time of a collision of the vehicle.
  • An aspect of the disclosure relates to a vehicle including an electric load, a first battery, a second battery, a switch, and a controller.
  • the first battery is electrically connected to the electric load.
  • the second battery is electrically connected to the electric load in parallel with the first battery.
  • the second battery is closer to a center of the vehicle than the first battery in a top view of the vehicle.
  • the switch is configured to electrically disconnect solely the first battery of the first battery and the second battery from the electric load.
  • the controller is configured to open the switch based on detection of a collision of the vehicle or detection of an abnormality of the first battery.
  • the switch is opened based on detection of a collision of the vehicle or detection of an abnormality of the first battery.
  • the switch is opened, solely the first battery of the first battery and the second battery is electrically disconnected from the electric load.
  • the switch is opened, solely the first battery of the first battery and the second battery is electrically disconnected from the electric load.
  • the first battery may be provided on each of both sides of the second battery in a predetermined direction in the top view of the vehicle. According to the aspect of the disclosure, it is possible to protect, with the first battery, the second battery from a collision in a form that force is applied in the predetermined direction.
  • the predetermined direction may be a vehicle width direction of the vehicle. According to the aspect of the disclosure, it is possible to protect the second battery from a side collision.
  • the first battery and the second battery may be housed inside a single housing.
  • the second battery may be provided closer to a center of the housing than the first battery in the top view of the vehicle. According to the aspect of the disclosure, it is possible to protect the second battery with the first battery inside the housing.
  • the first battery may be provided within a predetermined area where deformation for impact absorption at the time of a collision is permitted in the vehicle.
  • the second battery may be provided outside the predetermined area. According to the aspect of the disclosure, it is possible to use the first battery for impact absorption.
  • the vehicle according to the aspect of the disclosure may further include a seat, and a frame member in a vehicle width direction configured to support the seat.
  • the second battery may be provided within a range not overlapping a movable range of the frame member accompanied with position adjustment in a front-rear direction of the seat in a side view of the vehicle. According to the aspect of the disclosure, it is possible to prevent the second battery from being damaged due to the frame member that can move inward of the vehicle at the time of a side collision.
  • the second battery may be disposed to be offset with respect to the first battery in a front-rear direction of the vehicle. According to the aspect of the disclosure, it is possible to arrange the first battery and the second battery without needing a space in the vehicle width direction.
  • the vehicle according to the aspect of the disclosure may further include a seat, a first frame member in a vehicle width direction configured to support the seat, and a second frame member in the vehicle width direction configured to support the seat and provided on an opposite side of the first frame member from the first battery and the second battery.
  • the first battery and the second battery may be provided within a range overlapping a movable range of the first frame member and the second frame member accompanied with position adjustment in a front-rear direction. of the seat in a side view of the vehicle.
  • the first battery and the second battery may be provided between the first frame member and the second frame member in a form that the first battery is positioned on each of both sides of the second battery in the vehicle width direction of the vehicle in the top view of the vehicle.
  • FIG. 1 is a diagram schematically showing a top view of a vehicle
  • FIG. 2 is a diagram of a battery pack when viewed from a back side
  • FIG. 3 is a schematic system configuration diagram of the vehicle
  • FIG. 4 is a schematic flowchart showing an operation example by a processing device of a battery ECU
  • FIG. 5 is an explanatory view of a preferred battery arrangement structure inside a battery case
  • FIG. 6 is an explanatory view of another preferred battery arrangement structure inside the battery case
  • FIG. 7 is an explanatory view of another preferred battery arrangement structure inside the battery case
  • FIG. 8 is an explanatory view of the relationship between a frame member and a battery pack at the time of a side collision.
  • FIG. 9 is a schematic view showing the relationship between the battery pack and the frame member from a back surface.
  • FIG. 1 is a diagram schematically showing a top view of a vehicle.
  • connection means “electrical connection”.
  • FIG. 2 is a diagram of a battery pack 2 when viewed from a back side and is a diagram showing the inside of the battery pack 2 when viewed through a back surface (battery case 20 portion).
  • the vehicle 1 includes the battery pack 2 .
  • the battery pack 2 is disposed below a center console, for example.
  • the battery pack 2 has the battery case 20 , and includes, inside the battery case 20 , normal battery cells 21 , 22 (an example of a first battery) and an emergency battery cell 24 (an example of a second battery).
  • the normal battery cells 21 , 22 are arranged in a form of sandwiching the emergency battery cell 24 in a vehicle width direction. That is, the normal battery cells 21 , 22 are provided on both sides of the emergency battery cell 24 in the vehicle width direction in a top view of the vehicle 1 , respectively.
  • the emergency battery cell 24 is provided closer to a center C of the battery case 20 than the normal battery cells 21 , 22 in the top view of the vehicle 1 .
  • the normal battery cells 21 , 22 are provided within a predetermined area (hereinafter, referred to as a “crushable zone”) where deformation for impact absorption at the time of a collision is permitted in the vehicle.
  • the emergency battery cell 24 is provided in an area outside the crushable zone. That is, the emergency battery cell 24 is not provided in the crushable zone.
  • a crushable zone Z 1 is schematically shown.
  • the normal battery cells 21 , 22 and the emergency battery cell 24 are fixed to the battery case 20 by a common battery cell binding portion 15 .
  • a common cooling duct 17 is provided below the battery case 20 .
  • the cooling duct 17 forms cooling means for cooling the normal battery cells 21 , 22 and the emergency battery cell 24 .
  • a common exhaust gas duct 16 is provided above the battery case 20 .
  • the exhaust gas duct 16 forms exhaust gas means.
  • FIG. 3 is a schematic system configuration diagram of the vehicle 1 .
  • the normal battery cells 21 , 22 and the emergency battery cell 24 are connected in parallel between a ground line 7 and a normal load power line 8 .
  • Battery shutoff relays 5 (an example of a switch) are provided between positive electrode sides of the normal battery cells 21 , 22 and the normal load power line 8 .
  • the battery shutoff relays 5 is closed in a normal state.
  • the battery shutoff relays 5 may be arranged between negative electrode sides of the normal battery cells 21 , 22 and the ground line 7 .
  • the normal battery cell 21 is provided with a thermistor 12 .
  • the ground line 7 is provided with a current sensor 13 .
  • a normal load 3 is connected to the normal load power line 8 .
  • the normal load 3 is an electronic apparatus (an example of an electric load) including electronic control units (ECU) sensors, accessories, and the like, and operates during a normal state except at the time of a collision.
  • ECU electronice control units
  • An emergency load 4 is connected to the normal load power line 8 through an emergency load wire 9 .
  • the emergency load 4 is a predetermined electric load (an example of an electric load) that realizes a predetermined function after a collision of the vehicle.
  • the emergency load 4 is a shift-by-wire system, a Mayday system (a system that realizes an emergency call function), or the like.
  • the Mayday system includes a wireless communication device using a mobile phone network.
  • the normal load power line 8 is connected to the normal battery cells 21 , 22 and the emergency battery cell 24 in parallel with the normal load 3 .
  • the vehicle 1 includes a battery ECU 10 that monitors the normal batten cells 21 , 22 and the emergency battery cell 24 .
  • the battery ECU 10 includes a processing device 11 .
  • the processing device 11 is realized by a computer. Specifically, though not shown, the processing device 11 includes a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), an auxiliary storage device, a communication interface, and the like, and the CPU executes a program in a storage device to realize various functions.
  • the thermistor 12 , the current sensor 13 and the battery shutoff relay 5 are connected to the battery ECU 10 .
  • An airbag ECU 92 is connected to the battery ECU 10 through a controller area network (CAN) 90 .
  • CAN controller area network
  • the processing device 11 opens the battery shutoff relays 5 based on detection of a collision of the vehicle 1 or detection of an abnormality of the normal battery cells 21 , 22 . That is, the processing device 11 opens the battery shutoff relays 5 in a case where a collision of the vehicle 1 or an abnormality of the normal battery cells 21 , 22 is detected.
  • a collision of the vehicle can be detected based on information (for example, a collision detection signal) from the airbag ECU 92 .
  • the processing device 11 may determine the presence or absence of a collision of the vehicle based on a signal from an acceleration sensor (not shown).
  • An abnormality of the normal battery cells 21 , 22 can be detected based on information from the thermistor 12 or the current sensor 13 . For example, in a case where information indicating an abnormality (an overcurrent, an overvoltage, a battery temperature abnormality, or the like) is obtained from the thermistor 12 or the current sensor 13 , an abnormality of the normal battery cells 21 , 22 is detected. As an abnormality of the normal battery cells 21 , 22 , individual abnormalities of the normal battery cells 21 , 22 may be detected, or detection may be made in a form that a normal battery cell of the normal battery cells 21 , 22 in which an abnormality occurs is unclear.
  • the battery shutoff relay 5 of a normal battery cell of the normal battery cells 21 , 22 in which an abnormality is detected may be opened.
  • the battery shutoff relays 5 related to both of the normal battery cells 21 , 22 are opened as an example.
  • the normal battery cells 21 , 22 are electrically disconnected from the normal load power line 8 .
  • the normal battery cells 21 , 22 are electrically disconnected from the normal load 3 and the emergency load 4 .
  • the normal battery cells 21 , 22 are provided in the crushable zone. With this, the normal battery cells 21 , 22 are damaged at the time of a collision (in particular, at the time of a side collision) of the vehicle 1 . As a result, the normal battery cells 21 , 22 are likely to be abnormal at the time of a collision of the vehicle 1 .
  • the battery shutoff relays 5 are opened based on detection of a collision of the vehicle 1 or detection of an abnormality of the normal battery cells 21 , 22 . Accordingly, it is possible to open the battery shutoff relays 5 at the time of a collision of the vehicle 1 .
  • the normal battery cells 21 , 22 are electrically disconnected from the normal load power line 8 . That is, it is possible to make solely the emergency batter cell 24 in the battery pack 2 available. With this, the normal battery cells 21 , 22 are electrically disconnected from the normal load 3 and the emergency load 4 . As a result, it is possible to safely operate solely the emergency battery cell 24 at the time of a collision of the vehicle 1 .
  • the normal battery cells 21 , 22 and the emergency battery cell 24 are arranged inside the single battery case 20 .
  • FIG. 4 is a schematic flowchart showing an operation example by the processing device 11 of the battery ECU 10 . Processing shown in FIG. 4 is performed in every predetermined cycle, for example, in a state where an ignition switch is powered on.
  • Step S 400 the processing device 11 determines whether or not a collision of the vehicle 1 or an abnormality of the normal battery cells 21 , 22 is detected.
  • Step S 402 the processing device 11 opens the battery shutoff relays 5 .
  • the battery shutoff relays 5 can be opened based on detection of a collision of the vehicle 1 or detection of an abnormality of the normal battery cells 21 , 22 .
  • FIG. 5 is an explanatory view of a preferred battery arrangement structure inside a battery case 20 A.
  • FIG. 5 is a diagram of a battery pack 2 A when viewed from a back side and is a diagram showing the inside the battery pack 2 A when viewed through a back surface (battery case 20 A portion).
  • FIG. 5 unlike FIG. 2 , while the normal battery cells 21 , 22 and the emergency battery cell 24 are provided to be horizontally arranged one by one, the difference described above is not indispensable.
  • FIG. 5 external force P according to a collision is schematically shown.
  • a side plate hereinafter, referred to as a “case side plate” of the battery case 20 A is deformed inward as indicated by a dotted line 80 in FIG. 5 .
  • the normal battery cell 21 moves inward as indicated by a dotted line 210 in FIG. 5 .
  • dimensions a, b, c, and the like are set such that the normal battery cell 21 and the emergency battery cell 24 do not interfere with each other.
  • the deflection amount ⁇ of the case side plate according to the external three P can be calculated by the following expression.
  • the case side plate ⁇ battery cell interference amount b according to the external force P is as follows.
  • an arrangement in which the interval a between the normal battery cell 21 and the emergency battery cell 24 is sufficiently greater than b is realized, whereby, even in a case where the external force P according to a collision is applied to the battery case 20 A, it is possible to prevent interference of the normal battery cell 21 and the emergency battery cell 24 . That is, even though the battery case 20 A is deformed with the application of the external force and the normal battery cell 21 moves toward the emergency battery cell 24 , the normal battery cell 21 is not brought into direct contact with the emergency battery cell 24 , and an input load to the emergency battery cell 24 can be further reduced. With this, it is possible to protect the emergency battery cell 24 .
  • FIG. 6 is an explanatory view of another preferred battery arrangement structure inside a battery case 20 B. Similarly to FIG. 2 , FIG. 6 is a diagram of the battery pack 2 B when viewed from a back side and is a diagram showing the inside the battery pack 2 B when viewed through a back surface (battery case 20 B portion).
  • FIG. 6 unlike FIG. 2 , while the normal battery cells 21 , 22 and the emergency battery cell 24 are provided to be horizontally arranged one by one, the difference described above is not indispensable.
  • FIG. 6 external three P 1 according to a collision is schematically shown.
  • a side plate (case side plate) of the battery case 20 B is deformed inward as indicated by a dotted line 80 in FIG. 6 .
  • the normal battery cell 21 is deformed inward as indicated by a dotted line 212 in FIG. 6 .
  • battery cell reaction force is applied to a cell fixing portion 70 B.
  • stress P 2 according to the deformation of the normal battery cell 21 is schematically shown. Fixing strength of the cell fixing portion 70 B is set so as not to be fractured even by the stress P 2 .
  • ⁇ 1 a deflection amount of the case side plate according to the external force P 1
  • ⁇ 2 a deformation amount of the normal battery cell 21 according to the external force P 1
  • A the interval between the battery and the case
  • the deflection amount ⁇ 1 of the case side plate according to the external force P 1 can be calculated by the following expression.
  • the stress P 2 of the battery cell at the time of ⁇ 2 deformation is obtained experimentally, for example, and the fixing strength of the cell fixing portion 70 B is set to be greater than P 2 , whereby, even in a case where the external force according to a collision is applied to the battery case 20 B it is possible to prevent interference of the normal battery cell 21 and the emergency battery cell 24 .
  • the fixing strength of the cell fixing portion 70 B is set to be greater than P 2 , whereby, even in a case where the external force according to a collision is applied to the battery case 20 B it is possible to prevent interference of the normal battery cell 21 and the emergency battery cell 24 .
  • the fixing strength of the cell fixing portion 70 B is set to be greater than P 2 , whereby, even in a case where the external force according to a collision is applied to the battery case 20 B it is possible to prevent interference of the normal battery cell 21 and the emergency battery cell 24 .
  • the fixing strength of the cell fixing portion 70 B is set to be greater than P 2 , whereby, even in a
  • FIG. 7 is an explanatory view of another preferred battery arrangement structure inside a battery case 20 C.
  • FIG. 7 is a diagram of a battery pack 2 C when viewed from a side surface and is a diagram showing the inside of the battery pack 2 C when viewed through the side surface (battery case 200 portion).
  • the emergency battery cell 24 is disposed so as not to enter a movable range Z 3 (a movable range due to seat position adjustment) of a horizontal frame member 50 . That is, the emergency battery cell 24 is disposed within a range not overlapping the movable range Z 3 of the frame member 50 in a side view of the vehicle.
  • the emergency battery cell 24 is disposed to be offset to a vehicle rear side with respect to the movable range Z 3 .
  • the normal battery cell 22 may be disposed in a form of being adjacent to the normal battery cell 21 .
  • the single frame member 50 is shown for simplification, a plurality of frame members 50 may be provided, and in this case, the movable range Z 3 of the frame members 50 is a movable area as the whole of the frame members 50 .
  • FIG. 8 is an explanatory view of the relationship between a frame member 50 and the battery pack 2 C at the time of a side collision and is a diagram schematically showing a state at the time of a side collision with a side collision pole.
  • the frame member 50 on the side collision side moves inward of the vehicle (see an arrow R 1 ) and is brought into contact with the normal battery cell 21 .
  • the emergency battery cell 24 is positioned outside the movable range Z 3 of the frame member 50 . With this, even though the frame member 50 moves inward of the vehicle, the frame member 50 is not brought into direct contact with the emergency battery cell 24 , and an input load to the emergency battery cell 24 can be further reduced. With this, it is possible to protect the emergency battery cell 24 .
  • the normal battery cells 21 , 22 are provided on both sides of the emergency battery cell 24 in the vehicle width direction in the top view of the vehicle 1 , respectively; however, the disclosure is not limited thereto.
  • the normal battery cells 21 , 22 may be provided on both sides of the emergency battery cell 24 in the front-rear direction of the vehicle in the top view of the vehicle 1 , respectively.
  • the disclosure is suitable as a configuration for achieving protection from a side collision.
  • the battery pack 2 , 2 A, or 2 B may be arranged within the movable range Z 3 ( FIG. 7 ) of the horizontal frame member 50 .
  • FIG. 9 is a schematic view showing the relationship between the battery pack 2 and the frame member 50 from a back surface.
  • the frame member 50 on the side collision side moves inward of the vehicle (see the arrow R 1 of FIG. 8 ) and is brought into contact with the side surface of the battery pack 2 .
  • external force P 3 is applied to the side surface of the battery pack 2 .
  • the external force P 3 corresponds to the external force P or the external force P 1 described with reference to FIG. 5, 6 , or the like.
  • the normal battery cells 21 , 22 are also arranged in a form of sandwiching the emergency battery cell 24 in the vehicle width direction. With this, it is possible to effectively protect the emergency battery cell 24 .

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  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Power Engineering (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
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  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
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  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
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DE102022203007A1 (de) 2022-03-28 2023-09-28 Volkswagen Aktiengesellschaft Fahrzeug mit mindestens einem elektrischen Antriebsenergiespeicher und einer Notfall-Stromversorgung

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JP2018114812A (ja) 2018-07-26
CN108336266B (zh) 2021-02-26

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