CN113879089B - Protection device for new energy truck battery pack - Google Patents

Protection device for new energy truck battery pack Download PDF

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Publication number
CN113879089B
CN113879089B CN202010624733.8A CN202010624733A CN113879089B CN 113879089 B CN113879089 B CN 113879089B CN 202010624733 A CN202010624733 A CN 202010624733A CN 113879089 B CN113879089 B CN 113879089B
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China
Prior art keywords
battery pack
protection structure
energy
length
vehicle
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CN202010624733.8A
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CN113879089A (en
Inventor
赵洪雪
李枭
余海涛
高润泽
庞知非
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Research Institute of Highway Ministry of Transport
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Research Institute of Highway Ministry of Transport
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    • 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
    • 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
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/023—Details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • 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
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R2019/026—Buffers, i.e. bumpers of limited extent
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transportation (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The embodiment of the invention discloses a protection device for a battery pack of a new energy truck. The device comprises three support slide rails, a first primary energy absorption protection structure, a second primary energy absorption protection structure, a third primary energy absorption protection structure, a fourth primary energy absorption protection structure, a first secondary energy absorption protection structure, a second secondary energy absorption protection structure, three left battery pack supports, three right battery pack supports, six range radars and a vehicle-mounted ECU (electronic control Unit), wherein a plurality of energy absorption protection structures are arranged between a longitudinal beam and each battery pack support, and each battery pack support is connected with the corresponding support slide rail through a shearing bolt, so that when the side surface of a battery pack is impacted, the shearing bolt below the impact position of the impacted battery pack is sheared, the battery pack support moves along the support slide rail and extrudes the energy absorption protection structure, the energy generated by the energy absorption protection structure is compressed, deformed and the energy generated by absorbing external force reaches the effect of protecting the battery pack, so that the safety performance of the battery pack in the side surface collision process of a new energy wagon is improved.

Description

Protection device for new energy truck battery pack
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a protection device for a battery pack of a new energy truck.
Background
With the continuous development of new energy automobile technology, new energy trucks have become increasingly popular.
The battery pack of the new energy truck is relatively large in volume and weight, and in the side collision process of the new energy truck, the car body structure deforms in the collision process, so that the battery pack is extruded, the battery pack is deformed or even damaged, and the safety of the battery pack is affected. Currently, in the prior art, a battery pack is extruded by reinforcing a vehicle body structure to avoid deformation of the vehicle body structure during a collision.
Since the vehicle body strength needs to be controlled to a certain extent in the design of the vehicle, if the vehicle body structure is too hard, the situation such as excessive acceleration is caused, and the safety performance of the battery pack is also affected, the above-mentioned manner of reinforcing the vehicle body structure can reduce the impact of the deformation of the vehicle body structure on the battery pack to a certain extent, but still can affect the safety performance of the battery pack, and therefore, a device capable of improving the safety performance of the battery pack in the side collision process of the new energy truck is needed at present.
Disclosure of Invention
The invention provides a protection device for a battery pack of a new energy truck, which can improve the safety performance of the battery pack in the side collision process of the new energy truck. The specific technical scheme is as follows:
The invention provides a protection device for a battery pack of a new energy wagon, which comprises three support slide rails, a first primary energy absorption protection structure, a second primary energy absorption protection structure, a third primary energy absorption protection structure, a fourth primary energy absorption protection structure, a first secondary energy absorption protection structure, a second secondary energy absorption protection structure, three left battery pack supports, three right battery pack supports, six range radars and a vehicle-mounted ECU, wherein the six range radars are connected with the vehicle-mounted ECU, each energy absorption protection structure is compressed and deformed under the action of external force to absorb energy generated by the action of the external force, the transverse length of each secondary energy absorption protection structure is half of the first length, the transverse length of each primary energy absorption protection structure and each secondary energy absorption protection structure after being completely compressed is 1/5 of the first length, and the first length is the transverse length of the primary energy absorption protection structure;
Each support sliding rail is parallel to each other and is transversely arranged below a longitudinal beam of the new energy truck at equal intervals in sequence along the direction from the head to the tail, a left battery pack of the new energy truck is fixed on the three left battery pack supports, a right battery pack of the new energy truck is fixed on the three right battery pack supports, one end of each support sliding rail is connected with the lower end of one of the three left battery pack supports through a shear bolt, and the other end of each support sliding rail is connected with the lower end of one of the three right battery pack supports through a shear bolt;
One end of the first primary energy absorption protection structure is connected with the left longitudinal beam of the new energy truck, the other end of the first primary energy absorption protection structure is connected with the side surface of one of the three left battery pack brackets, one end of the first secondary energy absorption protection structure is connected with the left longitudinal beam, the other end of the first primary energy absorption protection structure faces the side surface of one of the three left battery pack brackets, one end of the third primary energy absorption protection structure is connected with the left longitudinal beam, the other end of the third primary energy absorption protection structure is connected with the side surface of the other of the three left battery pack brackets, one end of the second primary energy absorption protection structure is connected with the right longitudinal beam of the new energy truck, the other end of the second primary energy absorption protection structure is connected with the side surface of one of the three right battery pack brackets, the other end of the second secondary energy absorption protection structure faces the side surface of one of the three right battery pack brackets, one end of the fourth primary energy absorption protection structure is connected with the right longitudinal beam, and the other end of the fourth primary energy absorption protection structure is connected with the side surface of the other of the three right battery pack brackets;
Three of the six range radars are arranged on the left longitudinal beam and are respectively used for measuring the distance between the left longitudinal beam and the three left battery pack supports, the other three of the six range radars are arranged on the right longitudinal beam and are respectively used for measuring the distance between the right longitudinal beam and the three right battery pack supports, each range radar transmits detected distance information to the vehicle-mounted ECU, and the vehicle-mounted ECU receives the distance information transmitted by each range radar;
when the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the received distance information contains the distance information meeting the condition of cutting off high-voltage power, and sends a first power-off instruction to the high-voltage power switch of each battery pack respectively, wherein the high-voltage power switch of each battery pack receives the first power-off instruction and cuts off the battery pack of the vehicle-mounted ECU to output high-voltage power;
when the new energy wagon is in a running state, the vehicle-mounted ECU determines that the received distance information contains the distance information meeting the condition of cutting off the high voltage power supply, and sends a second power supply cutting-off instruction to the high voltage power switch of each battery pack respectively, wherein the high voltage power switch of each battery pack receives the first power supply cutting-off instruction and cuts off the battery pack of the vehicle-mounted ECU to output high voltage power.
Optionally, when the new energy wagon is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a first power-off command to the high-voltage switch of each battery pack respectively;
When the new energy wagon is in a running state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a second power-off instruction to the high-voltage switch of each battery pack respectively.
Optionally, the first secondary energy-absorbing protection structure is located between the first primary energy-absorbing protection structure and the third primary energy-absorbing protection structure.
Optionally, the second secondary energy-absorbing protection structure is located between the second primary energy-absorbing protection structure and the fourth primary energy-absorbing protection structure.
Optionally, each first-stage energy-absorbing protection structure includes hollow first metal cylinder and set up in first disk-shaped metal body at first metal cylinder both ends, every first disk-shaped metal body is provided with a plurality of first mounting holes, first metal cylinder's periphery is provided with a plurality of first crumple holes.
Optionally, each secondary energy absorption protection structure comprises a hollow second metal cylinder and a second disc-shaped metal body arranged at one end of the metal cylinder, wherein the second disc-shaped metal body is provided with a plurality of second mounting holes, and a plurality of second crumple holes are formed in the periphery of the second metal cylinder.
Optionally, the first primary energy-absorbing protection structure and the second primary energy-absorbing protection structure are arranged right above a supporting sliding rail close to the headstock;
the first secondary energy absorption protection structure and the second secondary energy absorption protection structure are arranged right above a support slide rail positioned in the middle of the three support slide rails;
The third primary energy absorption protection structure and the fourth primary energy absorption protection structure are arranged right above the support sliding rail close to the tail of the vehicle.
Optionally, the side surface of each battery pack bracket is connected with each primary energy absorption protection structure through a common bolt.
Optionally, the protection device of the new energy wagon battery pack further comprises a communication module and a loudspeaker, wherein the communication module and the loudspeaker are both installed in a cab of the new energy wagon, and the communication module and the loudspeaker are both connected with the vehicle-mounted ECU;
When the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and sends a first notification signal to the communication module, and the communication module receives the first notification signal and sends the first notification information to a mobile phone of a driver; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, sends a second notification signal to the communication module, and the communication module receives the second notification signal and sends second notification information to a mobile phone of a driver;
When the new energy wagon is in a running state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and sends a first voice signal to the loudspeaker, and the loudspeaker receives the first voice signal and plays a first voice prompt message; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, sends a second voice signal to the loudspeaker, and the loudspeaker receives the second voice signal and plays second voice prompt information.
Optionally, when the new energy wagon is in a driving state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of the first length and less than the first length, and sends a first display signal to a central control display screen of the new energy wagon, and the central control display screen receives and displays the first display signal; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a second display signal to the central control display screen, and the central control display screen receives and displays the second display signal.
As can be seen from the foregoing, in the embodiment of the present invention, by arranging a plurality of energy-absorbing protection structures between the stringers and the battery pack supports, and connecting each battery pack support with the corresponding support rail by means of shear bolts, when the side surface of the battery pack is impacted, the shear bolts below the impact position of the impacted battery pack are sheared, the battery pack support of the impacted battery pack moves along the support rail under the action of shear force and presses the energy-absorbing protection structure between the battery pack support of the impacted battery pack and the stringers, and the energy-absorbing protection structure between the impacted battery pack and the stringers is compressively deformed to absorb energy generated by the action of external force, thereby reducing the possibility of deformation of the impacted battery pack, achieving the effect of protecting the battery pack, and improving the safety performance of the battery pack in the collision process of the side surface of the new energy wagon. Of course, it is not necessary for any one product or method of practicing the invention to achieve all of the advantages set forth above at the same time.
The innovation points of the embodiment of the invention include:
1. Through set up a plurality of energy-absorbing protection architecture between longeron and battery package support, and every battery package support passes through shearing bolted connection's mode with corresponding support slide rail for when the side of battery package receives the striking, the shearing bolt of the striking position below of the battery package of being struck is cut, and the battery package support of the battery package of being struck removes and extrudees the energy-absorbing protection architecture that is located between the battery package support of being struck and the longeron along support slide rail under the effect of shearing force, and the energy-absorbing protection architecture that is located between the battery package of being struck and the longeron takes place compression deformation in order to absorb the energy that external force effect produced, thereby reduces the possibility that the battery package of being struck takes place to warp, reaches the effect of protecting the battery package, has improved the security performance of battery package in the new energy freight train side in-collision process.
2. Because the two-stage energy-absorbing protection structures are further arranged, the transverse length of each two-stage energy-absorbing protection structure is half of the transverse length of the first-stage energy-absorbing protection structure, and the first-stage energy-absorbing protection structure is extruded firstly when slight extrusion occurs, the first-stage energy-absorbing protection structure acts, only the first-stage energy-absorbing protection structure is repaired when a vehicle is repaired, when serious extrusion occurs, the first-stage energy-absorbing protection structure is extruded, the second-stage energy-absorbing protection structure is extruded, and the first-stage energy-absorbing protection structure and the second-stage energy-absorbing protection structure act together to achieve better energy-absorbing effect.
3. The protection device for the battery pack of the new energy truck provided by the embodiment of the invention has the advantages of simple structure, reliability, high efficiency and low cost.
4. Through the mode that sets up communication module and speaker, when the battery package takes place the striking of different degree, can be when new energy truck is in the flameout state, can send different notification information through communication module to driver's cell-phone to make the driver learn the condition of striking, when new energy truck is in the state of traveling, can play different voice prompt information through the speaker, so that make the driver learn the condition of striking.
5. When the battery pack is impacted to different degrees, different display signals are sent to the central control display screen of the new energy truck through the vehicle-mounted ECU to be displayed, so that the condition that a driver can know the impact in the driving process is further ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the invention. Other figures may be derived from these figures without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a bottom view of a protection device for a battery pack of a new energy truck according to an embodiment of the present invention;
Fig. 2 is a side view of a protection device for a battery pack of a new energy truck according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of section A-A of FIG. 1;
FIG. 4 is a cross-sectional view of section B-B of FIG. 3;
FIG. 5 is a cross-sectional view of section C-C of FIG. 3;
FIG. 6 is a schematic structural diagram of a primary energy-absorbing protection structure according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a secondary energy-absorbing protection structure according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a new energy truck according to an embodiment of the present invention.
In fig. 1 to 8, 1 supports a slide rail, 2 first primary energy-absorbing protection structure, 3 second primary energy-absorbing protection structure, 4 third primary energy-absorbing protection structure, 5 fourth primary energy-absorbing protection structure, 6 first secondary energy-absorbing protection structure, 7 second secondary energy-absorbing protection structure, 8 left battery pack support, 9 right battery pack support, 10 range radar, 11 left battery pack, 12 right battery pack, 13 shear bolt, 14 left longitudinal beam, 15 right longitudinal beam, 16 common bolt, 17 cab, 20 first metal cylinder, 30 first disk-shaped metal body, 40 first mounting hole, 50 first crush hole, 60 second metal cylinder, 70 second disk-shaped metal body, 80 second mounting hole, 90 second crush hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments of the present invention and the accompanying drawings are intended to cover non-exclusive inclusions. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a protection device for a battery pack of a new energy truck, which can improve the safety performance of the battery pack in the side collision process of the new energy truck. The following describes embodiments of the present invention in detail.
Fig. 1 is a bottom view of a protection device for a battery pack of a new energy truck according to an embodiment of the present invention. Referring to fig. 1, the protection device for a battery pack of a new energy wagon provided by the embodiment of the invention comprises three support slide rails 1, a first primary energy-absorbing protection structure 2, a second primary energy-absorbing protection structure 3, a third primary energy-absorbing protection structure 4, a fourth primary energy-absorbing protection structure 5, a first secondary energy-absorbing protection structure 6, a second secondary energy-absorbing protection structure 7, three left battery pack brackets 8, three right battery pack brackets 9, six range radars 10 and a vehicle-mounted ECU.
The six range radars 10 are all connected with the vehicle-mounted ECU, each energy-absorbing protection structure is compressed and deformed under the action of external force to absorb energy generated under the action of external force, the transverse length of each secondary energy-absorbing protection structure is half of the first length, the transverse length of each primary energy-absorbing protection structure and each secondary energy-absorbing protection structure after being completely compressed is 1/5 of the first length, and the first length is the transverse length of the primary energy-absorbing protection structure.
Fig. 2 is a side view of a protection device for a battery pack of a new energy truck, referring to fig. 1-2, the support rails 1 are parallel to each other and are transversely installed below a longitudinal beam of the new energy truck at equal intervals in sequence along a direction from a front to a rear, a left battery pack 11 of the new energy truck is fixed on three left battery pack brackets 8, and a right battery pack 12 of the new energy truck is fixed on three right battery pack brackets 9.
Fig. 3 is a sectional view of section A-A in fig. 1, and fig. 4 is a sectional view of section B-B in fig. 3, referring to fig. 1-4, one end of each support rail 1 is connected to the lower end of one of the three left battery pack holders 8 by a shear bolt 13, and the other end is connected to the lower end of one of the three right battery pack holders 9 by a shear bolt 13, that is, one end of each support rail 1 is connected to the lower end of one left battery pack holder 8, and the other end is connected to the lower end of one right battery pack holder 9.
With continued reference to fig. 1, one end of the first primary energy-absorbing protection structure 2 is connected to the left side member 14 of the new energy wagon, the other end is connected to the side surface of one of the three left battery pack brackets 8, one end of the first secondary energy-absorbing protection structure 6 is connected to the left side member 14, the other end faces the side surface of one of the three left battery pack brackets 8, one end of the third primary energy-absorbing protection structure 4 is connected to the left side member 14, the other end is connected to the side surface of the other of the three left battery pack brackets 8, one end of the second primary energy-absorbing protection structure 3 is connected to the right side member 15 of the new energy wagon, the other end is connected to the side surface of one of the three right battery pack brackets 9, one end of the second secondary energy-absorbing protection structure 7 is connected to the right side member 15, the other end faces the side surface of the other of the three right battery pack brackets 9, and one end of the fourth primary energy-absorbing protection structure 5 is connected to the right side member 15.
Fig. 5 is a cross-sectional view of section C-C of fig. 3, see fig. 3 and 5, with the side of each battery pack bracket attached to a respective primary energy absorbing protective structure by a common bolt 16.
Because the shear bolt 13 can bear a larger axial force but cannot bear a larger shear force, if a certain battery pack is impacted laterally or extruded, the shear bolt 13 below the impact position of the battery pack is subjected to a larger shear force, at this time, the shear bolt 13 is sheared, and the battery pack bracket of the battery pack moves along the supporting sliding rail 1 under the action of the shear force and extrudes the energy absorption protection structure between the battery pack bracket and the longitudinal beam, and the energy absorption protection structure between the battery pack and the longitudinal beam is compressively deformed to absorb energy generated by the action of external force, thereby playing the role of energy absorption.
Because the transverse length of each secondary energy-absorbing protection structure is half of the first length, and the first length is the transverse length of the primary energy-absorbing protection structure, when the primary energy-absorbing protection structure is extruded, the primary energy-absorbing protection structure is extruded first, at the moment, the primary energy-absorbing protection structure acts, and when half of the first length is extruded, the secondary energy-absorbing protection structure starts to be extruded, at the moment, the secondary energy-absorbing protection structure starts to act.
In order to facilitate movement along the support slide rail 1 under the action of shearing force when the shearing bolt 13 is sheared, the first primary energy-absorbing protection structure 2 and the second primary energy-absorbing protection structure 3 can be arranged right above the support slide rail 1 close to the vehicle head, the first secondary energy-absorbing protection structure 6 and the second secondary energy-absorbing protection structure 7 are arranged right above the support slide rail 1 in the middle of the three support slide rails 1, and the third primary energy-absorbing protection structure 4 and the fourth primary energy-absorbing protection structure 5 are arranged right above the support slide rail 1 close to the vehicle tail.
In order to achieve a better energy absorption effect, the energy absorption protection structures on the left side and the right side of the longitudinal beam can be symmetrical, namely, a first secondary energy absorption protection structure 6 is positioned between the first primary energy absorption protection structure 2 and the third primary energy absorption protection structure 4, and a second secondary energy absorption protection structure 7 is positioned between the second primary energy absorption protection structure 3 and the fourth primary energy absorption protection structure 5. Therefore, the energy absorption protection structures on the left side and the right side of the longitudinal beam are symmetrical in a mode that the first secondary energy absorption protection structure 6 is arranged between the first primary energy absorption protection structure 2 and the third primary energy absorption protection structure 4, and the second secondary energy absorption protection structure 7 is arranged between the second primary energy absorption protection structure 3 and the fourth primary energy absorption protection structure 5.
Fig. 6 is a schematic structural diagram of a primary energy-absorbing protection structure provided by an embodiment of the present invention, fig. 7 is a schematic structural diagram of a secondary energy-absorbing protection structure provided by an embodiment of the present invention, and referring to fig. 6 to fig. 7, the primary energy-absorbing protection structure and the secondary energy-absorbing protection structure provided by the embodiment of the present invention may be:
Each primary energy-absorbing protection structure comprises a hollow first metal cylinder 20 and first disc-shaped metal bodies 30 arranged at two ends of the first metal cylinder 20, each first disc-shaped metal body 30 is provided with a plurality of first mounting holes 40, each primary energy-absorbing protection structure is respectively connected with a longitudinal beam and a battery pack bracket through the first mounting holes 40 at two ends, the periphery of the first metal cylinder 20 is provided with a plurality of first crumple holes 50, and due to the plurality of first crumple holes 50, when the primary energy-absorbing protection structure is compressed, the primary energy-absorbing protection structure can be convenient for compression deformation of the primary energy-absorbing protection structure to absorb energy generated by external force.
Each secondary energy-absorbing protection structure comprises a hollow second metal cylinder 60 and a second disc-shaped metal body 70 arranged at one end of the metal cylinder 60, the second disc-shaped metal body 70 is provided with a plurality of second mounting holes 80, each secondary energy-absorbing protection structure is connected with the longitudinal beam through the second mounting holes 80, the periphery of the second metal cylinder 60 is provided with a plurality of second crumple holes 90, and when the secondary energy-absorbing protection structure is compressed, the secondary energy-absorbing protection structure can be convenient for compression deformation of the secondary energy-absorbing protection structure to absorb energy generated by external force due to the plurality of second crumple holes 90.
With continued reference to fig. 1, three of the six ranging radars 10 are mounted on the left side frame 14 for measuring the distance between the left side frame 14 and the three left battery pack brackets 8, respectively, and the other three of the six ranging radars 10 are mounted on the right side frame 15 for measuring the distance between the right side frame 15 and the three right battery pack brackets 9, respectively, each ranging radar 10 transmits the detected distance information to the vehicle-mounted ECU, which receives the distance information transmitted by each ranging radar 10.
Whether the new energy truck is in a flameout state or a driving state, when the side surface of a certain battery pack is impacted or extruded at a high speed, the vehicle-mounted ECU receives distance information sent by each range radar 10, if the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, the shear bolts 13 below the impact position of the impacted battery pack are sheared, the battery pack support of the impacted battery pack moves along the supporting sliding rail 1 under the action of shear force and extrudes a primary energy absorption protection structure between the battery pack support of the impacted battery pack and the longitudinal beam, and the primary energy absorption protection structure between the impacted battery pack and the longitudinal beam is compressively deformed to absorb energy generated by external force action, so that the energy absorption effect is achieved.
If the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, the shearing bolt 13 below the impact position of the impacted battery pack is sheared, the battery pack support of the impacted battery pack moves along the supporting sliding rail 1 under the action of shearing force and extrudes the primary energy absorption protection structure and the secondary energy absorption protection structure between the battery pack support of the impacted battery pack and the longitudinal beam, and the primary energy absorption protection structure and the secondary energy absorption protection structure between the impacted battery pack and the longitudinal beam are compressed and deformed to absorb energy generated by the action of external force, so that the energy absorption function is achieved.
Because if the battery pack does not cut off the high-voltage power output by the battery pack through the high-voltage power switch of the battery pack when the battery pack is impacted, the internal short circuit of the battery pack is possibly caused to cause fire or explosion, when the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the received distance information has the distance information meeting the condition of cutting off the high-voltage power, which indicates that the high-voltage power needs to be cut off at the moment, the vehicle-mounted ECU respectively sends a first power-cutting instruction to the high-voltage power switch of each battery pack, and the high-voltage power switch of each battery pack receives a first power-cutting instruction and cuts off the battery pack of the vehicle-mounted ECU to output the high-voltage power; when the new energy truck is in a running state, the vehicle-mounted ECU determines that the received distance information contains the distance information meeting the condition of cutting off the high-voltage power supply, and the distance information indicates that the high-voltage power supply needs to be cut off at the moment, the vehicle-mounted ECU respectively sends a second power supply cutting-off instruction to the high-voltage power supply switch of each battery pack, and the high-voltage power supply switch of each battery pack receives the first power supply cutting-off instruction and cuts off the battery pack of the vehicle-mounted ECU to output high-voltage power.
Because the vehicle-mounted ECU receives six distance information, in one case, when the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the received distance information has the distance information meeting the condition of cutting off the high-voltage power supply, and respectively sends a first power cut-off instruction to the high-voltage power switch of each battery pack, which can be as follows:
When the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a first power-off command to the high-voltage switch of each battery pack respectively.
Because the transverse length of each secondary energy absorption protection structure is half of the first length, the transverse length of each primary energy absorption protection structure and each secondary energy absorption protection structure after being completely compressed is 1/5 of the first length, and the first length is the transverse length of the primary energy absorption protection structure, when the new energy truck is in a flameout state, if the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, the secondary energy absorption protection structure is indicated to play a role, and the impact force is larger at the moment, so that the high-voltage electricity needs to be cut off in order to avoid internal short circuit of the battery pack.
When the new energy truck is in a running state, the vehicle-mounted ECU determines that the received distance information has the distance information meeting the condition of cutting off the high-voltage power supply, and respectively sends a second power supply cutting-off instruction to the high-voltage power switch of each battery pack, which can be as follows:
when the new energy truck is in a running state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a second power-off instruction to the high-voltage switch of each battery pack respectively.
Similar to the situation when the new energy truck is in the flameout state, when the new energy truck is in the driving state, if the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, the secondary energy absorption protection structure is indicated to play a role, and the impact force is larger at the moment, so that the high-voltage power is required to be cut off in order to avoid the internal short circuit of the battery pack.
In summary, in the embodiment of the invention, by arranging the plurality of energy-absorbing protection structures between the longitudinal beam and the battery pack support, and connecting each battery pack support with the corresponding support sliding rail through the shearing bolts, when the side surface of the battery pack is impacted, the shearing bolts 13 below the impact position of the impacted battery pack are sheared, the battery pack support of the impacted battery pack moves along the support sliding rail 1 under the action of shearing force and presses the energy-absorbing protection structure between the battery pack support of the impacted battery pack and the longitudinal beam, and the energy-absorbing protection structure between the impacted battery pack and the longitudinal beam is compressed and deformed to absorb energy generated by the action of external force, so that the possibility of deformation of the impacted battery pack is reduced, the effect of protecting the battery pack is achieved, and the safety performance of the battery pack in the collision process of the side surface of the new energy wagon is improved.
Meanwhile, as the two-stage energy-absorbing protection structures are further arranged, the transverse length of each two-stage energy-absorbing protection structure is half of the transverse length of the first-stage energy-absorbing protection structure, and the first length is the transverse length of the one-stage energy-absorbing protection structure, therefore, when slight extrusion occurs, the one-stage energy-absorbing protection structure is extruded first, the one-stage energy-absorbing protection structure acts, when a vehicle is repaired, only the one-stage energy-absorbing protection structure is repaired, when serious extrusion occurs, the one-stage energy-absorbing protection structure is extruded, the two-stage energy-absorbing protection structure is extruded, and the one-stage energy-absorbing protection structure and the two-stage energy-absorbing protection structure act together, so that a better energy-absorbing effect is achieved.
In addition, the protection device for the battery pack of the new energy truck provided by the embodiment of the invention has the advantages of simple structure, reliability, high efficiency and low cost.
Fig. 8 is a schematic structural diagram of a new energy wagon according to an embodiment of the present invention, referring to fig. 8, in order to facilitate a driver to learn about an impact situation, a protection device for a battery pack of a new energy wagon according to an embodiment of the present invention may further include a communication module and a speaker, where the communication module and the speaker are both installed in a cab 17 of the new energy wagon, and the communication module and the speaker are both connected with a vehicle-mounted ECU.
When the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and indicates that the primary energy absorption protection structure between the impacted battery pack and the longitudinal beam is compressed and deformed to absorb energy generated by external force action.
When the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and indicates that the primary energy absorption protection structure and the secondary energy absorption protection structure between the impacted battery pack and the longitudinal beam are compressed and deformed to absorb energy generated by external force action.
When the new energy truck is in a driving state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and indicates that a primary energy absorption protection structure between the impacted battery pack and the longitudinal beam is subjected to compression deformation to absorb energy generated by external force action.
When the new energy truck is in a driving state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and indicates that the primary energy absorption protection structure and the secondary energy absorption protection structure between the impacted battery pack and the longitudinal beam are compressed and deformed to absorb energy generated by external force action.
Therefore, by means of the communication module and the loudspeaker, when the battery pack is impacted to different degrees, different notification information can be sent to the mobile phone of the driver through the communication module when the new energy truck is in a flameout state, so that the driver can know the impact condition, and when the new energy truck is in a driving state, different voice prompt information can be played through the loudspeaker, so that the driver can know the impact condition.
Under the condition that the protection device of the battery pack of the new energy truck further comprises the communication module and the loudspeaker, because the sound is noisy in the driving process of the driver, the driver possibly does not hear the voice prompt information played by the loudspeaker, so that in order to ensure that the driver can learn about the collision condition, when the new energy truck is in the driving state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of the first length and smaller than the first length, sends a first display signal to a central control display screen of the new energy truck, and the central control display screen receives and displays the first display signal, wherein the information displayed by the first display signal can be that the side surface of the battery pack is impacted or extruded to replace the shear bolt and the primary energy absorption protection structure in time; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, sends a second display signal to the central control display screen, and the central control display screen receives and displays the second display signal, wherein the information displayed by the second display signal can be that the side surface of the battery pack is severely impacted or extruded to timely replace a shear bolt, a primary energy absorption protection structure and a secondary energy absorption protection structure.
Therefore, when the battery pack is impacted to different degrees, different display signals are sent to the central control display screen of the new energy truck for display through the vehicle-mounted ECU, and the condition that a driver can know the impact in the driving process is further ensured.
Those of ordinary skill in the art will appreciate that: the drawing is a schematic diagram of one embodiment and the modules or flows in the drawing are not necessarily required to practice the invention.
Those of ordinary skill in the art will appreciate that: the modules in the apparatus of the embodiments may be distributed in the apparatus of the embodiments according to the description of the embodiments, or may be located in one or more apparatuses different from the present embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. The protection device for the battery pack of the new energy wagon is characterized by comprising three supporting slide rails, a first primary energy-absorbing protection structure, a second primary energy-absorbing protection structure, a third primary energy-absorbing protection structure, a fourth primary energy-absorbing protection structure, a first secondary energy-absorbing protection structure, a second secondary energy-absorbing protection structure, three left battery pack supports, three right battery pack supports, six range radars and a vehicle-mounted ECU, wherein the six range radars are connected with the vehicle-mounted ECU, each energy-absorbing protection structure is compressed and deformed under the action of external force to absorb energy generated by the action of the external force, the transverse length of each secondary energy-absorbing protection structure is half of the first length, and the transverse length of each primary energy-absorbing protection structure and each secondary energy-absorbing protection structure after being completely compressed is 1/5 of the first length, and the first length is the transverse length of the primary energy-absorbing protection structure;
Each support sliding rail is parallel to each other and is transversely arranged below a longitudinal beam of the new energy truck at equal intervals in sequence along the direction from the head to the tail, a left battery pack of the new energy truck is fixed on the three left battery pack supports, a right battery pack of the new energy truck is fixed on the three right battery pack supports, one end of each support sliding rail is connected with the lower end of one of the three left battery pack supports through a shear bolt, and the other end of each support sliding rail is connected with the lower end of one of the three right battery pack supports through a shear bolt;
One end of the first primary energy absorption protection structure is connected with the left longitudinal beam of the new energy truck, the other end of the first primary energy absorption protection structure is connected with the side surface of one of the three left battery pack brackets, one end of the first secondary energy absorption protection structure is connected with the left longitudinal beam, the other end of the first primary energy absorption protection structure faces the side surface of one of the three left battery pack brackets, one end of the third primary energy absorption protection structure is connected with the left longitudinal beam, the other end of the third primary energy absorption protection structure is connected with the side surface of the other of the three left battery pack brackets, one end of the second primary energy absorption protection structure is connected with the right longitudinal beam of the new energy truck, the other end of the second primary energy absorption protection structure is connected with the side surface of one of the three right battery pack brackets, the other end of the second secondary energy absorption protection structure faces the side surface of one of the three right battery pack brackets, one end of the fourth primary energy absorption protection structure is connected with the right longitudinal beam, and the other end of the fourth primary energy absorption protection structure is connected with the side surface of the other of the three right battery pack brackets;
Three of the six range radars are arranged on the left longitudinal beam and are respectively used for measuring the distance between the left longitudinal beam and the three left battery pack supports, the other three of the six range radars are arranged on the right longitudinal beam and are respectively used for measuring the distance between the right longitudinal beam and the three right battery pack supports, each range radar transmits detected distance information to the vehicle-mounted ECU, and the vehicle-mounted ECU receives the distance information transmitted by each range radar;
when the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the received distance information contains the distance information meeting the condition of cutting off high-voltage power, and sends a first power-off instruction to the high-voltage power switch of each battery pack respectively, wherein the high-voltage power switch of each battery pack receives the first power-off instruction and cuts off the battery pack of the vehicle-mounted ECU to output high-voltage power;
when the new energy wagon is in a running state, the vehicle-mounted ECU determines that the received distance information contains the distance information meeting the condition of cutting off the high-voltage power, and sends a second power-off instruction to the high-voltage power switch of each battery pack respectively, wherein the high-voltage power switch of each battery pack receives the first power-off instruction and cuts off the battery pack of the vehicle-mounted ECU to output high-voltage power;
each first-stage energy absorption protection structure comprises a hollow first metal cylinder and first disc-shaped metal bodies arranged at two ends of the first metal cylinder, each first disc-shaped metal body is provided with a plurality of first mounting holes, and the periphery of the first metal cylinder is provided with a plurality of first crumple holes.
2. The apparatus of claim 1, wherein,
When the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of a first length and less than 1/2 of the first length, and respectively sends a first power cut-off instruction to the high-voltage switch of each battery pack;
When the new energy wagon is in a running state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a second power-off instruction to the high-voltage switch of each battery pack respectively.
3. The apparatus of claim 1, wherein the first secondary energy absorbing protective structure is located between the first primary energy absorbing protective structure and the third primary energy absorbing protective structure.
4. The apparatus of claim 3, wherein the second secondary energy absorbing protective structure is located between the second primary energy absorbing protective structure and the fourth primary energy absorbing protective structure.
5. The apparatus of claim 1, wherein each secondary energy absorbing protective structure comprises a hollow second metal cylinder and a second disc-shaped metal body disposed at one end of the metal cylinder, the second disc-shaped metal body being provided with a plurality of second mounting holes, the second metal cylinder being provided with a plurality of second crush holes at its periphery.
6. The apparatus of claim 1, wherein the first primary energy absorbing protective structure and the second primary energy absorbing protective structure are disposed directly above a support rail proximate a vehicle head;
the first secondary energy absorption protection structure and the second secondary energy absorption protection structure are arranged right above a support slide rail positioned in the middle of the three support slide rails;
The third primary energy absorption protection structure and the fourth primary energy absorption protection structure are arranged right above the support sliding rail close to the tail of the vehicle.
7. The apparatus of claim 1, wherein the side of each battery pack support is attached to a respective primary energy absorbing protective structure by means of a common bolt.
8. The device of claim 2, further comprising a communication module and a speaker, wherein the communication module and the speaker are both mounted to a cab of the new energy truck, and wherein the communication module and the speaker are both connected to the vehicle ECU;
When the new energy truck is in a flameout state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and sends a first notification signal to the communication module, and the communication module receives the first notification signal and sends the first notification information to a mobile phone of a driver; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, sends a second notification signal to the communication module, and the communication module receives the second notification signal and sends second notification information to a mobile phone of a driver;
When the new energy wagon is in a running state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and sends a first voice signal to the loudspeaker, and the loudspeaker receives the first voice signal and plays a first voice prompt message; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, sends a second voice signal to the loudspeaker, and the loudspeaker receives the second voice signal and plays second voice prompt information.
9. The apparatus of claim 8, wherein,
When the new energy wagon is in a running state, the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/2 of a first length and smaller than the first length, and sends a first display signal to a central control display screen of the new energy wagon, and the central control display screen receives and displays the first display signal; the vehicle-mounted ECU determines that the minimum distance in the received distance information is greater than 1/5 of the first length and less than 1/2 of the first length, and sends a second display signal to the central control display screen, and the central control display screen receives and displays the second display signal.
CN202010624733.8A 2020-07-02 2020-07-02 Protection device for new energy truck battery pack Active CN113879089B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045273A1 (en) * 2010-09-14 2012-03-15 Detlef Alwes Energy absorbing structure for reducing impact energy on objects, has two assemblies of object for receiving impact energy in case of collision on shear deformation elements
CN103448803A (en) * 2013-04-11 2013-12-18 浙江吉利汽车研究院有限公司杭州分公司 Floor rear crossbeam reinforcing structure
CN205523642U (en) * 2016-04-28 2016-08-31 长城汽车股份有限公司 Vehicle battery wraps mounting structure , is used for protective cradle and vehicle of vehicle battery package
CN207416528U (en) * 2017-10-27 2018-05-29 比亚迪股份有限公司 Battery fastening structure and with its battery pack and vehicle
CN207781703U (en) * 2018-02-07 2018-08-28 北京新能源汽车股份有限公司 Collision protection device and vehicle with same
CN109204560A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Electric car and its body structure
CN212332352U (en) * 2020-07-02 2021-01-12 交通运输部公路科学研究所 New energy truck battery pack safety protection device and new energy truck

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045273A1 (en) * 2010-09-14 2012-03-15 Detlef Alwes Energy absorbing structure for reducing impact energy on objects, has two assemblies of object for receiving impact energy in case of collision on shear deformation elements
CN103448803A (en) * 2013-04-11 2013-12-18 浙江吉利汽车研究院有限公司杭州分公司 Floor rear crossbeam reinforcing structure
CN205523642U (en) * 2016-04-28 2016-08-31 长城汽车股份有限公司 Vehicle battery wraps mounting structure , is used for protective cradle and vehicle of vehicle battery package
CN109204560A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Electric car and its body structure
CN207416528U (en) * 2017-10-27 2018-05-29 比亚迪股份有限公司 Battery fastening structure and with its battery pack and vehicle
CN207781703U (en) * 2018-02-07 2018-08-28 北京新能源汽车股份有限公司 Collision protection device and vehicle with same
CN212332352U (en) * 2020-07-02 2021-01-12 交通运输部公路科学研究所 New energy truck battery pack safety protection device and new energy truck

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