WO2020020323A1 - 智能电池箱及检测方法 - Google Patents
智能电池箱及检测方法 Download PDFInfo
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- WO2020020323A1 WO2020020323A1 PCT/CN2019/097819 CN2019097819W WO2020020323A1 WO 2020020323 A1 WO2020020323 A1 WO 2020020323A1 CN 2019097819 W CN2019097819 W CN 2019097819W WO 2020020323 A1 WO2020020323 A1 WO 2020020323A1
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- Prior art keywords
- battery box
- stress
- state detection
- vehicle
- smart battery
- Prior art date
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- 238000001514 detection method Methods 0.000 title claims abstract description 123
- 230000007246 mechanism Effects 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 7
- 238000011900 installation process Methods 0.000 claims description 7
- 238000012806 monitoring device Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
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- 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
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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
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- 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
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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Definitions
- the invention relates to an intelligent battery box and a detection method.
- monitoring whether the battery box is installed in place is usually implemented by the power exchange device itself or other equipment other than the battery box. After the power is changed, monitoring whether the battery box is falling is usually judged by whether the vehicle is powered on. If the vehicle is out of power, it means that the battery box is falling.
- the above-mentioned monitoring methods need to be implemented by means of electric replacement equipment or by circuit detection in the vehicle, and the battery box itself does not have a detection function, which is very inconvenient.
- the technical problem to be solved by the present invention is to overcome the defect that the battery box itself does not have the ability to monitor whether the battery box is installed or dropped in the prior art, and provides an intelligent battery box and a detection method.
- the present invention provides a smart battery box, which includes a battery box assembly, a state detection module, and a BMS (battery management system).
- the state detection module is disposed on the battery box assembly.
- the status detection module is configured to obtain status information of the battery box assembly, and send the status information to the BMS.
- the status information includes position information of the battery box assembly on the vehicle and / or temperature information of the battery box body.
- the state detection module is specifically configured to obtain position information of the battery box assembly on the vehicle according to the direction and magnitude of the stress detected by itself.
- the battery box assembly includes a battery box body and a connection mechanism provided on the battery box body, and the state detection module includes a first state detection unit and a sensor head of the first state detection unit. It is arranged on the connecting mechanism.
- the first state detection unit is configured to:
- the direction of the stress and the magnitude of the stress generated by the connecting mechanism are detected by the sensor head. If the magnitude of the stress is greater than a first threshold and the direction of the stress and the If the installation direction of the smart battery box is the same, the position information of the battery box assembly on the vehicle is the target position of the preset installation process.
- the first state detection unit is configured to:
- the direction of the stress and the magnitude of the stress generated by the connection mechanism are detected by the sensor head. If the magnitude of the stress is greater than a second threshold and the direction of the stress is opposite to the direction of gravity , Then the position information of the battery box assembly on the vehicle is that the installed target position has been reached.
- the battery box assembly includes a battery box body and a connection mechanism provided on the battery box body, and the state detection module includes a second state detection unit and a sensor head of the second state detection unit. Provided on the abutting surface of the battery box assembly and the vehicle;
- the second state detection unit is configured to:
- the direction of the stress and the magnitude of the stress generated by the abutment surface are detected by the sensor head. If the magnitude of the stress is greater than a third threshold and the stress direction is along the In the outward direction of the battery case, the position information of the battery case assembly on the vehicle is maintained at the installation completion position and tightly connected to the vehicle.
- the state detection module is implemented by using a fiber grating sensor.
- the BMS is configured to store the status information and record a receiving time of the status information.
- the smart battery box further includes a communication module
- the communication module is communicatively connected with the BMS, and the BMS sends the status information to a remote monitoring device through the communication module.
- the smart battery box further includes a data transmission interface
- the data transmission interface is communicatively connected to the BMS, and the BMS sends the status information to a VCU or a device accessing the data transmission interface through the data transmission interface.
- the present invention also provides a smart battery box detection method, which is implemented by using the smart battery box as described above.
- the smart battery box detection method includes:
- the status detection module obtains the status information of the battery box assembly and sends the status information to the BMS.
- the status information includes position information of the battery box assembly on the vehicle and / or temperature information of the battery box body.
- the status detection module obtains status information of the battery box assembly, including:
- the position information of the battery box assembly on the vehicle is obtained according to the stress direction and the magnitude of the stress detected by itself.
- the battery box assembly includes a battery box body and a connection mechanism provided on the battery box body, and the state detection module includes a first state detection unit and a sensor head of the first state detection unit. It is arranged on the connecting mechanism.
- obtaining the position information of the battery box assembly on the vehicle according to the stress direction and the magnitude of the stress detected by the stress includes:
- the first state detection unit detects the direction of the stress and the magnitude of the stress generated by the connection mechanism through the sensor head. If the magnitude of the stress is greater than a first threshold And the stress direction is the same as the installation direction of the smart battery box, then the position information of the battery box assembly on the vehicle is that it has reached the target position of the preset installation process.
- obtaining the position information of the battery box assembly on the vehicle according to the stress direction and the magnitude of the stress detected by the stress includes:
- the first state detection unit After the first state detection unit is installed to the vehicle, the first state detection unit detects the direction of the stress and the magnitude of the stress generated by the connection mechanism through the sensor head. If the magnitude of the stress is greater than a second threshold and the If the stress direction is opposite to the direction of gravity, the position information of the battery box assembly on the vehicle is that the installed target position has been reached.
- the battery box assembly includes a battery box body and a connection mechanism provided on the battery box body, and the state detection module includes a second state detection unit and a sensor head of the second state detection unit. Provided on the abutting surface of the battery box assembly and the vehicle;
- Obtaining the position information of the battery box assembly on the vehicle according to the direction and magnitude of the stress detected by the self includes:
- the direction and magnitude of stress generated by the abutment surface are detected by the sensor head, and if the magnitude of the stress is greater than a third threshold and The stress direction is a direction outward along the battery box body, and then the position information of the battery box assembly on the vehicle is maintained at the installation completion position and tightly connected to the vehicle.
- the state detection module is implemented by using a fiber grating sensor.
- the method for detecting a smart battery box further includes:
- the BMS stores the status information, and records a reception time of the status information.
- the smart battery box further includes a communication module, and the communication module is in communication connection with the BMS;
- the smart battery box detection method further includes: the BMS sends the status information to a remote monitoring device through the communication module.
- the smart battery box further includes a data transmission interface, and the data transmission interface is communicatively connected with the BMS;
- the smart battery box detection method further includes: the BMS sends the status information to a VCU or a device connected to the data transmission interface through the data transmission interface.
- the positive progress effect of the present invention is that the intelligent battery box and the detection method of the present invention can rely on the battery box itself to detect its status information, such as whether the battery box is installed in place or dropped, without the need for other equipment or a special detection circuit on the vehicle.
- FIG. 1 is a schematic block diagram of a smart battery box according to Embodiment 1 of the present invention.
- FIG. 2 is a flowchart of a method for detecting a smart battery box according to Embodiment 2 of the present invention.
- An intelligent battery box as shown in FIG. 1, includes a battery box assembly 11, a state detection module 12, and a BMS 13.
- the state detection module 12 is disposed on the battery box assembly 11, and the state detection module 12 is communicatively connected to the BMS 13.
- the communication connection is preferably a wired communication connection.
- the status detection module 12 is configured to obtain status information of the battery box assembly 11 and send the status information to the BMS 13.
- the battery box assembly 11 includes a battery box body and a connection mechanism provided on the battery box body.
- the present invention does not limit the specific structures of the battery case and the connection mechanism.
- the status information may include position information of the battery box assembly 11 on the vehicle.
- the state detection module 12 is specifically configured to: according to the direction and magnitude of the stress detected by itself, obtain the battery box assembly 11 in the vehicle. Location information on the vehicle.
- the state detection module 12 may include a first state detection unit 121, and a sensor head of the first state detection unit 121 is disposed on the connection mechanism.
- the first state detection unit 121 may be configured to:
- the direction of the stress and the magnitude of the stress generated by the connecting mechanism are detected by the sensor head. If the magnitude of the stress is greater than a first threshold and the direction of the stress and the If the installation direction of the smart battery box is the same, the position information of the battery box assembly 11 on the vehicle is the target position of the preset installation process.
- the first threshold is a preset experience value.
- a battery outer box is provided at the bottom of the vehicle.
- the preset installation process may be different according to the structure of the battery outer box.
- the first installation preset process is to lift the smart battery box from the bottom of the vehicle by a power exchange device.
- the installation direction of the smart battery box is upward, and the target position is set to the most in the battery outer box.
- the smart battery box and the battery outer box are connected and fixed at the target position through connection mechanisms such as bolts and nuts.
- the first state detection unit 121 detects the direction of the stress and the magnitude of the stress generated by the connection mechanism through the sensor head. If it is larger than the first threshold and the stress direction is upward, it means that the battery box assembly 11 has reached the topmost target position provided in the battery outer box.
- the second installation presetting process is divided into two stages.
- the first stage the power exchange equipment lifts up the smart battery box from below the vehicle;
- the second stage the power exchange equipment moves the smart battery in front of the horizontal direction box. box.
- the installation direction of the smart battery box is upward, and the target position is set to the top of the battery outer box.
- the installation direction of the smart battery box is horizontally forward, and the target position is set to the battery outer box.
- the smart battery box is connected to the battery outer box through a lock shaft or other connection mechanism and fixed at the target position.
- the first state detection unit 121 detects the direction of stress and the magnitude of the stress generated by the connection mechanism through the sensor head. If the magnitude of the stress is greater than a certain threshold and the stress direction Up, the battery box assembly 11 has reached the topmost target position provided in the battery outer box.
- the first state detection unit 121 detects the direction of stress and the magnitude of the stress generated by the connection mechanism through the sensor head. If the magnitude of the stress is greater than a certain threshold and the stress direction Moving forward horizontally, the battery box assembly 11 has reached the most forward target position set in the battery outer box.
- the first state detection unit 121 may be further configured to:
- the direction of the stress and the magnitude of the stress generated by the connection mechanism are detected by the sensor head. If the magnitude of the stress is greater than a second threshold and the direction of the stress is opposite to the direction of gravity , Then the position information of the battery box assembly 11 on the vehicle is that the target position of the installation has been reached.
- the second threshold is a preset experience value.
- the target position after installation is set to the top of the battery case.
- the connection mechanism will be subject to the battery box assembly facing downward. The applied gravity, and in order to support the battery box assembly, the connection mechanism will generate upward stress.
- the connection mechanism will not generate upward stress or even generate stress. , The magnitude of stress is not enough.
- the sensor head of the first state detection unit 121 is provided on the connection mechanism, and the direction and magnitude of the stress generated by the connection mechanism can be detected by the sensor head to determine whether the battery box assembly 11 is The installed target position has been reached, that is, if the stress level is greater than the second threshold and the stress direction is upward, the battery box assembly 11 has reached the installed target position.
- the target position after installation is set to be the topmost part in the vertical direction and the frontmost part in the horizontal direction in the battery case.
- the sensor head of the first state detection unit 121 is provided on the connection mechanism, and the direction and magnitude of the stress generated by the connection mechanism can be detected by the sensor head to determine whether the battery box assembly 11 is The installed target position has been reached, that is, if the stress level is greater than the second threshold and the stress direction is upward, the battery box assembly 11 has reached the installed target position.
- the state detection module 12 may further include a second state detection unit 122, and a sensor head of the second state detection unit 122 is disposed on a contact surface between the battery box assembly 11 and the vehicle.
- the abutment surface is determined according to the abutment method of the battery box assembly 11 and the vehicle.
- the specific abutment method may be side abutment, top abutment, etc., and the corresponding abutment surface is the battery. Side, top, etc. of the box assembly 11.
- the second state detection unit 122 is configured to:
- the direction of the stress and the magnitude of the stress generated by the abutment surface are detected by the sensor head. If the magnitude of the stress is greater than a third threshold and the stress direction is along the In the outward direction of the battery case, the position information of the battery case assembly 11 on the vehicle is maintained at the installation completion position and tightly connected to the vehicle.
- the third threshold is a preset experience value.
- the front side of the battery box assembly 11 is in contact with the corresponding front inner side of the battery outer box in the vehicle, and the top surface of the battery box assembly 11 is in contact with the battery in the vehicle. If the corresponding top and inside surfaces of the outer box abut, if the second state detection unit 122 provided on the front side of the battery box assembly 11 detects that the magnitude of the stress generated on the front side by the sensor head is greater than the corresponding threshold and the stress
- the direction is the outward direction (that is, forward) of the battery case, and the second state detection unit 122 disposed on the top surface of the battery case assembly 11 detects that the stress generated on the top surface is greater than the corresponding stress by the sensor head. And the stress direction is along the outward direction of the battery box (that is, upward), the position information of the battery box assembly 11 on the vehicle is maintained at the installation completed position and is in line with the vehicle. Tight connection.
- the status information may further include temperature information of the battery case. Prevent battery damage due to overheating.
- the state detection module 12 may be implemented by using a fiber grating sensor.
- the fiber grating sensor uses the principle that the spectrum absorbed by some substances changes with temperature, and analyzes the spectrum transmitted by the fiber to understand the real-time temperature.
- the BMS 13 is used to store the status information and record the receiving time of the status information.
- the smart battery box further includes a communication module 14;
- the communication module is communicatively connected to the BMS 13 and the BMS 13 sends the status information to a remote monitoring device through the communication module.
- the smart battery box further includes a data transmission interface
- the data transmission interface 15 is communicatively connected to the BMS 13 and the BMS 13 sends the status information to a VCU or a device accessing the data transmission interface through the data transmission interface.
- the smart electric box of this embodiment can detect its own state without relying on other equipment than the battery box, for example, whether the battery box assembly 11 has reached the target position during the installation preset process, whether it has reached the target position after installation, Whether it remains in the installed position and is tightly connected to the vehicle. On the one hand, even if the state of the battery box is detected, on the other hand, the detection circuit of the vehicle or other equipment can be simplified.
- a smart battery box detection method is implemented by using the smart battery box of Embodiment 1.
- the intelligent battery box includes a battery box assembly, a state detection module, and a BMS.
- the state detection module is disposed on the battery box assembly, and the state detection module is communicatively connected with the BMS.
- the method for detecting a smart battery box includes:
- Step 21 The status detection module obtains status information of the battery box assembly.
- Step 22 The status detection module sends the status information to a BMS.
- the battery box assembly includes a battery box body and a connecting mechanism provided on the battery box body.
- the present invention does not limit the specific structures of the battery case and the connection mechanism.
- the status information may include position information of the battery box assembly on the vehicle.
- step 21 includes:
- the state detection module obtains the position information of the battery box assembly on the vehicle according to the stress direction and the magnitude of the stress detected by itself.
- the state detection module may include a first state detection unit, and a sensor head of the first state detection unit is disposed on the connection mechanism.
- Step 21 may specifically include:
- the first state detection unit detects the direction of the stress and the magnitude of the stress generated by the connection mechanism through the sensor head during the process of installing the smart battery box to the vehicle. If the stress direction is the same as the installation direction of the smart battery box, the position information of the battery box assembly on the vehicle is that it has reached the target position of the preset installation process.
- Step 21 may further specifically include:
- the first state detection unit After the first state detection unit is installed to the vehicle, the first state detection unit detects a stress direction and a stress magnitude generated by the connection mechanism through a sensor head, and if the stress magnitude is greater than a second threshold value and the stress The direction is opposite to the direction of gravity, then the position information of the battery box assembly on the vehicle is that the target position of the installation has been reached.
- the state detection module may further include a second state detection unit, and a sensor head of the second state detection unit is disposed on an abutting surface of the battery box assembly and the vehicle.
- Step 21 may include:
- the direction of the stress and the magnitude of the stress generated by the abutment surface are detected by a sensor head, and if the magnitude of the stress is greater than a third threshold and the The stress direction is along the outward direction of the battery box body, and then the position information of the battery box assembly on the vehicle is maintained at the installation complete position and tightly connected to the vehicle.
- the status information may further include temperature information of the battery case. Prevent battery damage due to overheating.
- the state detection module may be implemented by using a fiber grating sensor.
- the smart battery box detection method further includes:
- Step 23 The BMS stores the status information, and records a reception time of the status information.
- the smart battery box further includes a communication module, and the communication module is communicatively connected to the BMS;
- the smart battery box detection method further includes:
- Step 24 The BMS sends the status information to a remote monitoring device through the communication module.
- the smart battery box further includes a data transmission interface, and the data transmission interface is communicatively connected with the BMS;
- the smart battery box detection method further includes:
- Step 24 ' The BMS sends the status information to a VCU or a device accessing the data transmission interface through the data transmission interface.
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
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Abstract
Description
Claims (22)
- 一种智能电池箱,其特征在于,包括:电池箱总成、状态检测模块和BMS,所述状态检测模块设置于所述电池箱总成上,所述状态检测模块与所述BMS通信连接;所述状态检测模块用于获取所述电池箱总成的状态信息,并将所述状态信息发送至所述BMS。
- 如权利要求1所述的智能电池箱,其特征在于,所述状态信息包括所述电池箱总成在车辆上的位置信息和/或所述电池箱体的温度信息。
- 如权利要求2所述的智能电池箱,其特征在于,所述状态检测模块具体用于:根据自身检测到的应力方向及应力大小,获取所述电池箱总成在所述车辆上的位置信息。
- 如权利要求3所述的智能电池箱,其特征在于,所述电池箱总成包括电池箱体和设置在所述电池箱体上的连接机构,所述状态检测模块包括第一状态检测单元,所述第一状态检测单元的传感头设置于所述连接机构上。
- 如权利要求4所述的智能电池箱,其特征在于,所述第一状态检测单元用于:在所述智能电池箱安装至所述车辆的过程中,通过所述传感头检测所述连接机构产生的应力方向及应力大小,若所述应力大小大于第一阈值且所述应力方向与所述智能电池箱的安装方向相同,则所述电池箱总成在所述车辆上的位置信息为已到达安装预设过程的目标位置。
- 如权利要求4或5所述的智能电池箱,其特征在于,所述第一状态检测单元用于:在所述智能电池箱安装至所述车辆后,通过所述传感头检测所述连接机构产生的应力方向及应力大小,若所述应力大小大于第二阈值且所述应力方向与重力方向相反,则所述电池箱总成在所述车辆上的位置信息为已达到安装完成的目标位置。
- 如权利要求3所述的智能电池箱,其特征在于,所述电池箱总成包 括电池箱体和设置在所述电池箱体上的连接机构,所述状态检测模块包括第二状态检测单元,所述第二状态检测单元的传感头设置于所述电池箱总成与所述车辆的抵接面上;所述第二状态检测单元用于:在所述智能电池箱安装至所述车辆后,通过所述传感头检测所述抵接面产生的应力方向及应力大小,若所述应力大小大于第三阈值且所述应力方向为沿所述电池箱体向外的方向,则所述电池箱总成在所述车辆上的位置信息为保持在安装完成位置并与所述车辆的紧密连接。
- 如权利要求1所述的智能电池箱,其特征在于,所述状态检测模块采用光纤光栅传感器实现。
- 如权利要求1所述的智能电池箱,其特征在于,所述BMS用于存储所述状态信息,并记录所述状态信息的接收时间。
- 如权利要求1所述的智能电池箱,其特征在于,所述智能电池箱还包括通讯模块;所述通讯模块与所述BMS通信连接,所述BMS通过所述通讯模块将所述状态信息发送至远程监控设备。
- 如权利要求1所述的智能电池箱,其特征在于,所述智能电池箱还包括数据传输接口;所述数据传输接口与所述BMS通信连接,所述BMS通过所述数据传输接口将所述状态信息发送至VCU或接入所述数据传输接口的设备。
- 一种智能电池箱检测方法,其特征在于,利用权利要求1-11中任意一项所述的智能电池箱实现,所述智能电池箱检测方法包括:状态检测模块获取电池箱总成的状态信息,并将状态信息发送至BMS。
- 如权利要求12所述的智能电池箱检测方法,其特征在于,所述状态信息包括所述电池箱总成在车辆上的位置信息和/或所述电池箱体的温度信息。
- 如权利要求13所述的智能电池箱检测方法,其特征在于,状态检 测模块获取电池箱总成的状态信息,包括:根据自身检测到的应力方向及应力大小,获取所述电池箱总成在所述车辆上的位置信息。
- 如权利要求14所述的智能电池箱检测方法,其特征在于,所述电池箱总成包括电池箱体和设置在所述电池箱体上的连接机构,所述状态检测模块包括第一状态检测单元,所述第一状态检测单元的传感头设置于所述连接机构上。
- 如权利要求15所述的智能电池箱检测方法,其特征在于,根据自身检测到的应力方向及应力大小,获取所述电池箱总成在所述车辆上的位置信息,包括:所述第一状态检测单元在所述智能电池箱安装至所述车辆的过程中,通过所述传感头检测所述连接机构产生的应力方向及应力大小,若所述应力大小大于第一阈值且所述应力方向与所述智能电池箱的安装方向相同,则所述电池箱总成在所述车辆上的位置信息为已到达安装预设过程的目标位置。
- 如权利要求15或16所述的智能电池箱检测方法,其特征在于,根据自身检测到的应力方向及应力大小,获取所述电池箱总成在所述车辆上的位置信息,包括:所述第一状态检测单元在所述智能电池箱安装至所述车辆后,通过所述传感头检测所述连接机构产生的应力方向及应力大小,若所述应力大小大于第二阈值且所述应力方向与重力方向相反,则所述电池箱总成在所述车辆上的位置信息为已达到安装完成的目标位置。
- 如权利要求14所述的智能电池箱检测方法,其特征在于,所述电池箱总成包括电池箱体和设置在所述电池箱体上的连接机构,所述状态检测模块包括第二状态检测单元,所述第二状态检测单元的传感头设置于所述电池箱总成与所述车辆的抵接面上;根据自身检测到的应力方向及应力大小,获取所述电池箱总成在所述车辆上的位置信息,包括:所述第二状态检测单元在所述智能电池箱安装至所述车辆后,通过所述传感头检测所述抵接面产生的应力方向及应力大小,若所述应力大小大于第三阈值且所述应力方向为沿所述电池箱体向外的方向,则所述电池箱总成在所述车辆上的位置信息为保持在安装完成位置并与所述车辆的紧密连接。
- 如权利要求12所述的智能电池箱检测方法,其特征在于,所述状态检测模块采用光纤光栅传感器实现。
- 如权利要求12所述的智能电池箱检测方法,其特征在于,所述智能电池箱检测方法还包括:所述BMS存储所述状态信息,并记录所述状态信息的接收时间。
- 如权利要求12所述的智能电池箱检测方法,其特征在于,所述智能电池箱还包括通讯模块,所述通讯模块与所述BMS通信连接;所述智能电池箱检测方法还包括:所述BMS通过所述通讯模块将所述状态信息发送至远程监控设备。
- 如权利要求12所述的智能电池箱检测方法,其特征在于,所述智能电池箱还包括数据传输接口,所述数据传输接口与所述BMS通信连接;所述智能电池箱检测方法还包括:所述BMS通过所述数据传输接口将所述状态信息发送至VCU或接入所述数据传输接口的设备。
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CN113386618A (zh) * | 2020-03-14 | 2021-09-14 | 帝亚一维新能源汽车有限公司 | 便携式换电电池包跌落后使用的策略方法 |
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JP2021533531A (ja) | 2021-12-02 |
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