Battery pack anti-collision device, control system and vehicle

Abstract

The utility model discloses a battery pack anti-collision device, a control system and a vehicle. A battery pack is installed at the bottom of the vehicle. The battery pack anti-collision device comprises an anti-collision beam. The anti-collision beam is installed at the bottom of the vehicle and located on the front side and / or the rear side of the battery pack. The anti-collision beam can move between the protection position and the avoiding position. When the anti-collision beam is located at the protection position, the bottom of the anti-collision beam is lower than the bottom of the battery pack. When the anti-collision beam is located at the avoiding position, the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack. The height of the anti-collision beam can be adjusted, the low wind resistance requirement when the vehicle runs on a flat road section at a high speed can be met, and the high protection performance requirement when the vehicle runs on a bad road at a low speed can also be met.

Description

Technical Field

[0001] The present application relates to the automotive field, and in particular to a battery pack anti-collision device, a control system and a vehicle. Background Art

[0002] The battery pack of new energy vehicles is usually fixed to the bottom of the vehicle. When the vehicle is driving on a bad road, the chassis often bumps against each other, causing damage to the battery pack. In order to protect the battery pack, vehicles on the market are currently equipped with anti-collision beams on the front or rear side of the battery pack. However, in order to reduce the wind resistance of the vehicle, some manufacturers set the bottom of the anti-collision beam to be flush with the bottom of the battery pack, resulting in a decrease in the protective performance of the anti-collision beam. Utility Model Content

[0003] The purpose of the present application is to provide a battery pack anti-collision device, a control system and a vehicle, wherein the height of the anti-collision beam can be adjusted, which can meet both the low wind resistance requirements when the vehicle is traveling at high speed on a flat road section and the high protection performance requirements when the vehicle is traveling at low speed on a bad road.

[0004] A first aspect of the present application provides a battery pack anti-collision device, which is installed at the bottom of a vehicle. The battery pack anti-collision device includes an anti-collision beam. The anti-collision beam is installed at the bottom of the vehicle and is located at the front and / or rear side of the battery pack. The anti-collision beam can move between a protection position and an avoidance position. When the anti-collision beam is in the protection position, the bottom of the anti-collision beam is lower than the bottom of the battery pack. When the anti-collision beam is in the avoidance position, the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack.

[0005] If the vehicle is traveling at high speed on a flat road, the anti-collision beam is in the avoidance position, the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack, then the vehicle's wind resistance is low. If the vehicle is traveling at low speed on a bad road, the anti-collision beam is in the protection position, the bottom of the anti-collision beam is lower than the bottom of the battery pack, if the vehicle is bumped during driving, the road surface will preferentially hit the anti-collision beam located in front of and / or behind the battery pack, the anti-collision beam can reduce the impact force of the road surface, prevent the road surface from directly hitting the battery pack, and thus better protect the battery pack.

[0006] By setting the anti-collision beam to be movable up and down, the wind resistance of the vehicle is reduced when the vehicle is traveling at high speed on a flat road. When the vehicle is traveling at a low speed on a bad road, the anti-collision beam also has better protection performance for the battery pack.

[0007] In some embodiments, the battery pack anti-collision device further includes a piston rod and a sleeve. The sleeve is disposed above the anti-collision beam, the sleeve is fixed to the vehicle, and the sleeve is provided with a receiving cavity opening toward the anti-collision beam. One end of the piston rod along the length direction is connected to the anti-collision beam, and the other end of the piston rod along the length direction is disposed in the receiving cavity.

[0008] The piston rod can move downward to push the anti-collision beam downward, so that the bottom of the anti-collision beam is lower than the bottom of the battery pack, and the anti-collision beam is in a protective position. The piston rod moves upward to drive the anti-collision beam to move upward, so that the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack, and the anti-collision beam is in an avoidance position.

[0009] The up and down movement of the anti-collision beam is controlled by a piston rod. The piston rod is small in size, and the structure of the battery pack anti-collision device is more compact, thereby saving space in the vehicle.

[0010] In some embodiments, two piston rods and two sleeves are provided, and the two sleeves are respectively provided at the two ends of the anti-collision beam along the length direction. One end of the two piston rods along the length direction is respectively connected to the two ends of the anti-collision beam along the length direction, and the two piston rods can move synchronously to drive the anti-collision beam to move.

[0011] By arranging two piston rods at both ends of the anti-collision beam in the length direction to drive the anti-collision beam to move, the movement of the anti-collision beam is more stable.

[0012] In some embodiments, a driving member is further included, the driving member includes a driving body and a driving shaft, and the driving body and the driving shaft are connected. The sleeve is provided with a through hole, and the through hole is communicated with the accommodating cavity. The driving shaft extends into the accommodating cavity from the through hole, and the driving shaft is connected to the end of the piston rod. When the driving body works, the driving shaft drives the piston rod to move downward or upward.

[0013] By setting a driving member to drive the anti-collision beam to move, the user can electrically adjust the height of the anti-collision beam, which is convenient to adjust and improves the user experience.

[0014] In some embodiments, the through hole is arranged on the side wall of the sleeve, the drive shaft extends from the side wall of the sleeve into the accommodating cavity, the axial direction of the drive shaft is perpendicular to the movement direction of the piston rod, and the drive shaft is provided with a protrusion in the accommodating cavity along the radial direction.

[0015] The battery pack anti-collision device also includes a connecting piece, which is arranged between the protrusion and the piston rod, one end of the connecting piece along the length direction is hinged to the protrusion, and the other end of the connecting piece along the length direction is hinged to the piston rod.

[0016] The drive shaft can rotate in the axial direction, causing the protrusion to flip downward around the axial direction of the drive shaft, the protrusion pushes the connecting piece to move downward, and the connecting piece pushes the piston rod to move downward. The drive shaft rotates in the opposite direction, the protrusion flips upward around the axial direction of the drive shaft, the protrusion drives the connecting piece to move upward, and the connecting piece drives the piston rod to move upward.

[0017] The drive shaft passes through the accommodating cavity from the side wall of the sleeve, and the drive shaft drives the anti-collision beam to move up and down by rotating in the axial direction. Compared with the drive shaft moving up and down to drive the anti-collision beam to move up and down, the range of motion of the drive shaft is smaller, thereby saving space in the height direction of the vehicle. The battery pack anti-collision device can also be used in vehicles with smaller heights, and has a wider range of applications.

[0018] In some embodiments, the protrusion is formed by bending a portion of the drive shaft. The connecting member is plate-shaped, and a first hinge hole is provided at one end of the connecting member facing the protrusion. The first hinge hole penetrates both sides of the connecting member along the thickness direction, and the protrusion passes through the first hinge hole, and the protrusion is hinged with the first hinge hole.

[0019] The protrusion is formed by bending the driving shaft, which has a simple structure, is easy to process and has a lower processing cost.

[0020] In some embodiments, a first bearing is disposed in the first hinge hole, an outer ring of the first bearing is fixed to the hole wall of the first hinge hole, and an inner ring of the first bearing is fixedly connected to the protrusion.

[0021] The end surface of the piston rod facing the connecting member is convexly provided with a hinge portion, and the hinge portion is provided with a second hinge hole. The battery pack anti-collision device also includes a hinge shaft, and the hinge shaft is fixedly connected to an end of the connecting member away from the first hinge hole. A second bearing is provided in the second hinge hole, and the outer ring of the second bearing is fixed to the hole wall surface of the second hinge hole, and the inner ring of the second bearing is fixedly connected to the hinge shaft.

[0022] By providing the first bearing and the second bearing, the rotation of the connecting member and the protrusion is smoother, and the rotation of the connecting member and the piston rod is smoother, thereby improving the stability of the movement of the anti-collision beam.

[0023] The second aspect of the present application provides a control system, including a receiving module, a processing module and an execution module. The execution module includes the battery pack anti-collision device provided in the first aspect of the present application. The receiving module is used to detect the vehicle speed and collect road information, and to transmit the vehicle speed and road information to the processing module. The processing module is used to obtain an instruction to adjust the height of the anti-collision beam according to the received vehicle speed and road information, and to send the instruction to the execution module. After receiving the instruction, the execution module adjusts the height of the anti-collision beam according to the instruction.

[0024] In some embodiments, the receiving module includes a vehicle speed sensor and a laser radar, the vehicle speed sensor is used to detect the vehicle speed, and the laser radar is used to collect road information.

[0025] The processing module includes a memory, a vehicle controller and an active suspension controller. The memory stores the correspondence between the standard vehicle speed and the standard road information. The vehicle controller is used to analyze the collected vehicle speed and road information, and to compare the collected vehicle speed and road information with the standard vehicle speed and road information stored in the memory. The vehicle controller issues an instruction to the active suspension controller to adjust the height of the anti-collision beam according to the comparison result. After receiving the instruction, the active suspension controller controls the movement of the anti-collision beam.

[0026] A third aspect of the present application provides a vehicle, comprising a battery pack and the control system provided in the second aspect of the present application.

[0027] The anti-collision device for the battery pack provided in the embodiment of the present application has an anti-collision beam that can move between an avoidance position and a protection position. When the vehicle is traveling on a flat road section, the anti-collision beam is in an avoidance position, and the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack. At this time, the wind resistance of the vehicle is low. If the vehicle is traveling on a bad road, the anti-collision beam is in a protection position, and the bottom of the anti-collision beam is lower than the bottom of the battery pack. If the vehicle is bumped during driving, the road surface will preferentially hit the anti-collision beam located at the front and / or rear side of the battery pack. The anti-collision beam can reduce the impact force of the road surface and prevent the road surface from directly hitting the battery pack, so as to better protect the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation scheme are briefly introduced below.

[0029] Figure 1 It is a partial structural schematic diagram of a vehicle provided in an embodiment of the present application.

[0030] Figure 2 It is a bottom view of a partial structure of a vehicle provided in an embodiment of the present application.

[0031] Figure 3 yes Figure 1 Schematic diagram of the structure of the battery pack anti-collision device of the vehicle shown in.

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0033] Figure 5 yes Figure 3 Exploded diagram.

[0034] Figure 6 yes Figure 4 Enlarged view of point B in the middle.

[0035] Figure 7 It is a schematic diagram of a control system of a vehicle provided in an embodiment of the present application.

[0036] Explanation of the reference numerals: 1000-vehicle, 100-battery pack, 200-control system, 210-receiving module, 220-processing module, 230-execution module, 300-front cabin assembly, 400-frame, 410-front subframe, 411-rear cross beam, 500-protective plate, 240-battery pack anti-collision device, 241-anti-collision beam, 242-sleeve, 243-piston rod, 244-accommodating chamber, 245-mounting plate, 246-driving member, 247-driving body, 248-driving shaft, 249-through hole, 250-protrusion, 251-connecting member, 252-first hinge hole, 253-first bearing, 254-hinge part, 255-second hinge hole, 256-hinge shaft, 257-second bearing. DETAILED DESCRIPTION

[0037] The following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. For ease of understanding, the length direction of the vehicle is defined as the X-axis, the width direction of the vehicle is defined as the Y-axis, and the height direction of the vehicle is defined as the Z-axis. The X-axis, Y-axis, and Z-axis are perpendicular to each other. The width direction of the battery pack anti-collision device is the X-axis, the length direction of the battery pack anti-collision device is the Y-axis, and the height direction of the battery pack anti-collision device is the Z-axis.

[0038] The directional terms such as "upper", "top", "lower", "bottom", "front", and "back" mentioned in the description of the embodiments of the present application are based on the Figure 1 The description of the orientation shown, with the positive direction of the Z-axis as "up" and "top", the negative direction of the Z-axis as "down" and "bottom", the positive direction of the X-axis as "front", and the negative direction of the X-axis as "back", does not constitute a limitation on the actual application scenario of the battery pack anti-collision device 240.

[0039] Please refer to Figure 1 and Figure 2 , the battery pack anti-collision device 240 provided in an embodiment of the present application, the battery pack 100 is installed at the bottom of the vehicle 1000. The battery pack anti-collision device 240 includes an anti-collision beam 241. The anti-collision beam 241 is installed at the bottom of the vehicle 1000 and is located at the front and / or rear side of the battery pack 100. The anti-collision beam 241 can move between a protection position and an avoidance position. When the anti-collision beam 241 is in the protection position, the bottom of the anti-collision beam 241 is lower than the bottom of the battery pack 100. When the anti-collision beam 241 is in the avoidance position, the bottom of the anti-collision beam 241 is flush with the bottom of the battery pack 100, or the bottom of the anti-collision beam 241 is higher than the bottom of the battery pack 100.

[0040] Specifically, the vehicle 1000 further includes a front cabin assembly 300, a frame 400 and a protective plate 500. The frame 400 includes a front sub-frame 410. The front cabin assembly 300 is located above the front sub-frame 410. The front sub-frame 410 and the battery pack 100 are fixed to the front cabin assembly 300. The protective plate 500 is located below the front sub-frame 410, and the protective plate 500 is fixedly connected to the front sub-frame 410. When projected upward along the Z-axis direction, the protective plate 500 covers the front sub-frame 410. The front subframe 410 includes a rear cross beam 411, which extends along the Y-axis direction. Along the X-axis direction, the rear cross beam 411 is spaced apart from the battery pack 100. The anti-collision beam 241 is installed on the rear cross beam 411 and is located between the rear cross beam 411 and the battery pack 100. The anti-collision beam 241 can move up and down between the rear cross beam 411 and the battery pack 100 to enable the anti-collision beam 241 to move between the avoidance position and the protection position.

[0041] The anti-collision beam 241 is a straight beam, and the anti-collision beam 241 extends along the Y-axis direction. Setting the anti-collision beam 241 as a straight beam can save space in the vehicle 1000. The anti-collision beam 241 can be installed on the front side of the battery pack 100, or on the rear side of the battery pack 100. Alternatively, the anti-collision beam 241 can be installed on both the front and rear sides of the battery pack 100. This embodiment mainly introduces a specific implementation method of the anti-collision beam 241 installed on the front side of the battery pack 100. The specific implementation method of the anti-collision beam 241 installed on the rear side of the battery pack 100 can refer to the solution of installing the anti-collision beam 241 on the front side of the battery pack 100.

[0042] If the vehicle 1000 is traveling at high speed on a flat road section, and the speed is relatively high, such as greater than 30 km / h, the anti-collision beam 241 is in an avoidance position, and the bottom of the anti-collision beam 241 is flush with the bottom of the battery pack 100, or the bottom of the anti-collision beam 241 is higher than the bottom of the battery pack 100. At this time, the bottom flatness of the vehicle 1000 is relatively high, and the wind resistance of the vehicle 1000 is relatively low. If the vehicle 1000 is traveling at a low speed on a bumpy road, and the speed is less than 30 km / h, the anti-collision beam 241 is in a protective position, and the bottom of the anti-collision beam 241 is lower than the bottom of the battery pack 100. If the vehicle 1000 is bumped during driving, the road surface will preferentially hit the anti-collision beam 241 located at the front and / or rear side of the battery pack 100. The anti-collision beam 241 can reduce the impact force of the road surface and prevent the road surface from directly hitting the battery pack 100, so as to better protect the battery pack 100.

[0043] The speed limit does not have to be set to 30km / h, and can also be set to 20km / h, 40km / h, etc.

[0044] By setting the anti-collision beam 241 to be movable up and down, the wind resistance of the vehicle 1000 is reduced when the vehicle 1000 is traveling at high speed on a flat road section. When the vehicle 1000 is traveling at low speed on a bad road, the anti-collision beam 241 also has better protection performance for the battery pack 100.

[0045] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4 The battery pack anti-collision device 240 further includes a sleeve 242 and a piston rod 243. The sleeve 242 is disposed above the anti-collision beam 241, the sleeve 242 is fixed to the vehicle 1000, and the sleeve 242 is provided with a receiving cavity 244 opening toward the anti-collision beam 241. One end of the piston rod 243 along the length direction is connected to the anti-collision beam 241, and the other end of the piston rod 243 along the length direction is disposed in the receiving cavity 244.

[0046] The piston rod 243 can move downward to push the anti-collision beam 241 downward, so that the bottom of the anti-collision beam 241 is lower than the bottom of the battery pack 100, and the anti-collision beam 241 is in a protective position. The piston rod 243 moves upward to drive the anti-collision beam 241 to move upward, so that the bottom of the anti-collision beam 241 is flush with the bottom of the battery pack 100, or the bottom of the anti-collision beam 241 is higher than the bottom of the battery pack 100, and the anti-collision beam 241 is in an avoidance position.

[0047] Specifically, the sleeve 242 is a rectangular parallelepiped shell, the accommodating cavity 244 is a rectangular parallelepiped cavity, and the piston rod 243 is also in the shape of a rectangular parallelepiped. The sleeve 242 is arranged between the rear cross beam 411 and the battery pack 100, and is located above the anti-collision beam 241. A mounting plate 245 is arranged on the outside of the sleeve 242, and the mounting plate 245 is fixed to the end face of the rear cross beam 411 relative to the battery pack 100 by bolts, so as to fix the sleeve 242 to the rear cross beam 411.

[0048] The opening of the accommodating chamber 244 faces the anti-collision beam 241, one end of the piston rod 243 is welded and fixed to the anti-collision beam 241, and the other end of the piston rod 243 extends from the opening into the accommodating chamber 244. The piston rod 243 can move up and down in the accommodating chamber 244 to push the anti-collision beam 241 to move up and down, so that the anti-collision beam 241 switches between the avoidance position and the protection position.

[0049] The anti-collision beam 241 is pushed up and down by the piston rod 243 . The piston rod 243 is relatively small in size, and the structure of the battery pack anti-collision device 240 is more compact, thereby saving space in the vehicle 1000 .

[0050] In some embodiments, please refer to Figure 3, two piston rods 243 and two sleeves 242 are provided, and the two sleeves 242 are respectively provided at the two ends of the anti-collision beam 241 in the length direction, and one end of the two piston rods 243 in the length direction is respectively connected to the two ends of the anti-collision beam 241 in the length direction, and the two piston rods 243 can move synchronously to drive the movement of the anti-collision beam 241. By providing two piston rods 243 at both ends of the anti-collision beam 241 in the length direction to drive the movement of the anti-collision beam 241, the movement of the anti-collision beam 241 is more stable.

[0051] In some embodiments, please refer to Figure 3 and Figure 4 The battery pack anti-collision device 240 also includes a driving member 246, which includes a driving body 247 and a driving shaft 248, and the driving body 247 and the driving shaft 248 are connected. The sleeve 242 is provided with a through hole 249, and the through hole 249 is connected to the accommodating chamber 244. The driving shaft 248 extends into the accommodating chamber 244 from the through hole 249, and the driving shaft 248 is connected to the end of the piston rod 243. When the driving body 247 works, the driving shaft 248 drives the piston rod 243 to move downward or upward.

[0052] The battery pack anti-collision device 240 is provided with two driving members 246 , and the two driving members 246 respectively drive the two piston rods 243 to move up and down.

[0053] Specifically, the connection between the drive shaft 248 and the piston rod 243 can be a direct connection or an indirect connection. When the drive shaft 248 is directly connected to the piston rod 243, the drive member 246 can be a cylinder, a linear motor, etc., the through hole 249 is set at the top of the sleeve 242, the drive member 246 is set at the top of the sleeve 242, the drive body 247 is fixed to the top of the sleeve 242 by bolts, and the drive shaft 248 extends from the top of the sleeve 242 into the accommodating cavity 244 and is connected to the piston rod 243. The telescopic direction of the drive shaft 248 is parallel to the moving direction of the piston rod 243.

[0054] By setting a driving member 246 to drive the anti-collision beam 241 to move, the user can electrically adjust the height of the anti-collision beam 241, which is convenient for adjustment and improves the user experience.

[0055] In some embodiments, please refer to Figure 4 The drive shaft 248 and the piston rod 243 can also be indirectly connected. The through hole 249 is set on the side wall of the sleeve 242, and the drive body 247 is fixed to the side wall of the sleeve 242 by bolts. The drive shaft 248 extends from the side wall of the sleeve 242 into the accommodating chamber 244. The axial direction of the drive shaft 248 is perpendicular to the movement direction of the piston rod 243. The drive shaft 248 is provided with a protrusion 250 in the accommodating chamber 244 along the radial direction.

[0056] The battery pack anti-collision device 240 also includes a connecting member 251, which is arranged between the protrusion 250 and the piston rod 243. One end of the connecting member 251 along the length direction is hinged to the protrusion 250, and the other end of the connecting member 251 along the length direction is hinged to the piston rod 243.

[0057] The driving member 246 is a motor that drives the body 247 to work, and the driving shaft 248 can rotate in the axial direction, so that the protrusion 250 turns downward around the axial direction of the driving shaft 248, and the protrusion 250 pushes the connecting member 251 to move downward, and the connecting member 251 pushes the piston rod 243 to move downward. The driving shaft 248 rotates in the opposite direction, and the protrusion 250 turns upward around the axial direction of the driving shaft 248, and the protrusion 250 drives the connecting member 251 to move upward, and the connecting member 251 drives the piston rod 243 to move upward.

[0058] The drive shaft 248 penetrates the accommodating cavity 244 from the side wall of the sleeve 242, and the drive shaft 248 drives the anti-collision beam 241 to move up and down by rotating in the axial direction. Compared with the drive shaft 248 moving up and down to drive the anti-collision beam 241 to move up and down, the range of motion of the drive shaft 248 is smaller, thereby saving space in the height direction of the vehicle 1000. The battery pack anti-collision device 240 can also be used in vehicles 1000 with a smaller height, and has a wider range of applicability.

[0059] In some embodiments, please refer to Figure 4 The protrusion 250 is formed by bending a portion of the driving shaft 248. The connecting member 251 is plate-shaped, and a first hinge hole 252 is provided at one end of the connecting member 251 facing the protrusion 250. The first hinge hole 252 penetrates both sides of the connecting member 251 along the thickness direction, and the protrusion 250 passes through the first hinge hole 252, and the protrusion 250 is hinged to the first hinge hole 252.

[0060] Specifically, the shape of the driving shaft 248 is a "X" shape, and the axis of the protrusion 250 is parallel to the axis of the driving shaft 248. The protrusion 250 is formed by bending the driving shaft 248, and has a simple structure, is easy to process, and has a low processing cost.

[0061] In some embodiments, please refer to Figure 5 and Figure 6 A first bearing 253 is disposed in the first hinge hole 252. The first bearing 253 is a rolling bearing and includes an inner ring and an outer ring. The inner ring and the outer ring can rotate in opposite directions along the axial direction of the first bearing 253. The outer ring of the first bearing 253 is fixed to the wall surface of the first hinge hole 252, and the inner ring of the first bearing 253 is fixedly connected to the protrusion 250, so that the protrusion 250 can rotate relative to the connecting member 251.

[0062] A hinge portion 254 is protruded from the end face of the piston rod 243 facing the connecting member 251, and the hinge portion 254 is provided with a second hinge hole 255. The battery pack anti-collision device 240 also includes a hinge shaft 256, which is fixedly connected to one end of the connecting member 251 away from the first hinge hole 252.

[0063] A second bearing 257 is disposed in the second hinge hole 255. The second bearing 257 is a rolling bearing and includes an inner ring and an outer ring. The inner ring and the outer ring can rotate in opposite directions along the axial direction of the second bearing 257. The outer ring of the second bearing 257 is fixed to the hole wall surface of the second hinge hole 255, and the inner ring of the second bearing 257 is fixedly connected to the hinge shaft 256 to realize the hinge connection between the hinge shaft and the hinge part.

[0064] By providing the first bearing 253 and the second bearing 257 , the connection member 251 and the protrusion 250 rotate more smoothly, and the connection member 251 and the piston rod 243 rotate more smoothly, thereby improving the stability of the movement of the anti-collision beam 241 .

[0065] Please refer to Figure 7 , the embodiment of the present application also provides a control system 200, including a receiving module 210, a processing module 220 and an execution module 230. The execution module 230 includes a battery pack anti-collision device 240 provided in the embodiment of the present application. The receiving module 210 is used to detect the vehicle speed and collect road information, and to transmit the vehicle speed and road information to the processing module 220. The processing module 220 is used to obtain an instruction for adjusting the height of the anti-collision beam 241 according to the received vehicle speed and road information, and to send the instruction to the execution module 230. After receiving the instruction, the execution module 230 adjusts the height of the anti-collision beam 241 according to the instruction.

[0066] Specifically, the processing module 220 determines the vehicle speed and road conditions based on the collected vehicle speed and road information. If the vehicle is traveling on a flat road section with good road conditions, such as a highway, and the vehicle speed is greater than 30 km / h, the processing module 220 does not issue an instruction, and the anti-collision beam 241 is in the avoidance position. If the vehicle is traveling on a bad road with poor road conditions, the road surface is uneven, and the vehicle speed is less than or equal to 30 km / h, the processing module 220 issues an instruction to the execution module 230. After the execution module 230 receives the instruction, the driving member 246 works, and the driving member 246 drives the anti-collision beam 241 to drop to the protection position.

[0067] Alternatively, when the processing module 220 recognizes that the vehicle 1000 is traveling from a worse road condition to a better road condition, and the vehicle speed increases from 30 km / h or less to a speed greater than 30 km / h, the processing module 220 issues an instruction to the execution module 230. After the execution module 230 receives the instruction, the drive component 246 operates, and the drive component 246 drives the anti-collision beam 241 to rise to the avoidance position.

[0068] In some embodiments, the receiving module 210 includes a vehicle speed sensor and a laser radar, wherein the vehicle speed sensor is used to detect the vehicle speed and the laser radar is used to collect road information;

[0069] The processing module 220 includes a memory, a vehicle controller and an active suspension controller. The memory stores the correspondence between the standard vehicle speed and the standard road information. The vehicle controller is used to analyze the collected vehicle speed and road information, and to compare the collected vehicle speed and road information with the standard vehicle speed and road information stored in the memory. The vehicle controller issues an instruction to the active suspension controller to adjust the height of the anti-collision beam 241 according to the comparison result. After the active suspension controller receives the instruction, the active suspension controller controls the movement of the anti-collision beam 241.

[0070] Specifically, the corresponding relationship is a relationship table between standard vehicle speed and standard road information. For example, a flat road section corresponds to a vehicle speed greater than 30 km / h. If the vehicle speed collected by the speed sensor is greater than 30 km / h, and the road information collected by the laser radar is that the vehicle is traveling on a flat road section, the vehicle controller will not issue an instruction to the active suspension controller to adjust the height of the anti-collision beam 241, and the anti-collision beam 241 is in an avoidance position.

[0071] The road is a bad road and the vehicle speed is less than or equal to 30 km / h. If the vehicle speed collected by the speed sensor is less than or equal to 30 km / h, and the road information collected by the laser radar shows that the vehicle is driving on a bumpy bad road, the vehicle controller issues an instruction to the active suspension controller to adjust the height of the anti-collision beam 241, and the anti-collision beam 241 moves to the protection position.

[0072] If the vehicle controller recognizes that the vehicle 1000 is traveling from a bad road to a smooth road, and the vehicle speed increases from 30 km / h or below to a speed greater than 30 km / h, the vehicle controller gives an instruction to the active suspension controller, and the active suspension controller controls the drive component 246 to operate, and the drive component 246 drives the anti-collision beam 241 to rise to the avoidance position.

[0073] The embodiment of the present application also provides a vehicle 1000, including a battery pack 100 and a control system 200 provided in the embodiment of the present application. The control system 200 includes a receiving module 210, a processing module 220 and an execution module 230, and the execution module 230 includes a battery pack anti-collision device 240 provided in this embodiment. The vehicle 1000 also includes a front cabin assembly 300 and a frame 400, and the frame 400 includes a front subframe 410, and the front subframe 410 and the battery pack 100 are fixed below the front cabin assembly 300. The front subframe 410 includes a rear crossbeam 411, and the rear crossbeam 411 is spaced apart from the battery pack 100 along the X-axis direction. The anti-collision beam 241 is arranged between the rear crossbeam 411 and the battery pack 100, and is installed on the rear crossbeam 411 through a sleeve 242, a driving member 246, a connecting member 251 and a piston rod 243.

[0074] The receiving module 210 and the processing module 220 of the control system 200 are arranged on the vehicle 1000. The receiving module 210 detects the vehicle speed and collects the road information, and transmits the vehicle speed and the road information to the processing module 220. The processing module 220 analyzes the vehicle speed and the road information. If the vehicle is traveling on a flat road section with good road conditions, such as a highway, and the vehicle speed is greater than 30km / h, the processing module 220 does not issue an instruction, and the anti-collision beam 241 is in the avoidance position. If the vehicle is traveling on a bad road, the road surface is uneven, and the vehicle speed is less than or equal to 30km / h, the processing module 220 issues an instruction to the execution module 230. After the execution module 230 receives the instruction, the driving member 246 works, and the driving member 246 drives the anti-collision beam 241 to drop to the protection position.

[0075] Alternatively, when the processing module 220 recognizes that the vehicle 1000 is traveling from a worse road condition to a better road condition, and the vehicle speed increases from 30 km / h or less to a speed greater than 30 km / h, the processing module 220 issues an instruction to the execution module 230. After the execution module 230 receives the instruction, the drive component 246 operates, and the drive component 246 drives the anti-collision beam 241 to rise to the avoidance position.

[0076] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea.

Claims

1. A battery pack anti-collision device, wherein the battery pack is installed at the bottom of a vehicle; characterized in that: The battery pack anti-collision device comprises an anti-collision beam; the anti-collision beam is installed at the bottom of the vehicle and is located at the front side and / or the rear side of the battery pack; the anti-collision beam can move between a protection position and an avoidance position; When the anti-collision beam is in the protection position, the bottom of the anti-collision beam is lower than the bottom of the battery pack; when the anti-collision beam is in the avoidance position, the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack.

2. The battery pack anti-collision device according to claim 1, characterized in that: It also includes a piston rod and a sleeve; the sleeve is arranged above the anti-collision beam, the sleeve is fixed to the vehicle, and the sleeve is provided with a receiving cavity with an opening toward the anti-collision beam; one end of the piston rod along the length direction is connected to the anti-collision beam, and the other end of the piston rod along the length direction is arranged in the receiving cavity; The piston rod can move downward to push the anti-collision beam downward, so that the bottom of the anti-collision beam is lower than the bottom of the battery pack, and the anti-collision beam is in a protective position; the piston rod moves upward to drive the anti-collision beam to move upward, the bottom of the anti-collision beam is flush with the bottom of the battery pack, or the bottom of the anti-collision beam is higher than the bottom of the battery pack, and the anti-collision beam is in an avoidance position.

3. The battery pack anti-collision device according to claim 2, characterized in that: The piston rod and the sleeve are each provided with two, the two sleeves are respectively provided at the two ends of the anti-collision beam along the length direction, one end of the two piston rods along the length direction is respectively connected to the two ends of the anti-collision beam along the length direction, and the two piston rods can move synchronously to drive the anti-collision beam to move.

4. The battery pack anti-collision device according to claim 2, characterized in that: It also includes a driving member, the driving member includes a driving body and a driving shaft, the driving body is connected to the driving shaft; the sleeve is provided with a through hole, the through hole is communicated with the accommodating cavity; the driving shaft extends from the through hole into the accommodating cavity, and the driving shaft is connected to the end of the piston rod; The driving body works, and the driving shaft drives the piston rod to move downward or upward.

5. The battery pack anti-collision device according to claim 4, characterized in that: The through hole is arranged on the side wall of the sleeve, the drive shaft extends from the side wall of the sleeve into the accommodating cavity, the axial direction of the drive shaft is perpendicular to the moving direction of the piston rod, and the drive shaft is provided with a protrusion in the accommodating cavity along the radial direction; The battery pack anti-collision device further includes a connecting member, which is arranged between the protrusion and the piston rod, wherein one end of the connecting member along the length direction is hinged to the protrusion, and the other end of the connecting member along the length direction is hinged to the piston rod; The drive shaft can rotate in the axial direction, so that the protrusion flips downward around the axial direction of the drive shaft, the protrusion pushes the connecting member to move downward, and the connecting member pushes the piston rod to move downward; The driving shaft rotates in the opposite direction, and the protrusion flips upward around the axial direction of the driving shaft. The protrusion drives the connecting member to move upward, and the connecting member drives the piston rod to move upward.

6. The battery pack anti-collision device according to claim 5, characterized in that: The protrusion is formed by bending a part of the driving shaft; the connecting member is plate-shaped, and a first hinge hole is provided at one end of the connecting member facing the protrusion, the first hinge hole penetrates both sides of the connecting member along the thickness direction, the protrusion passes through the first hinge hole, and the protrusion is hinged to the first hinge hole.

7. The battery pack anti-collision device according to claim 6, characterized in that: A first bearing is disposed in the first hinge hole, an outer ring of the first bearing is fixed to the hole wall of the first hinge hole, and an inner ring of the first bearing is fixedly connected to the protrusion; The piston rod is provided with a hinge portion protruding from the end face of the connecting piece, and the hinge portion is provided with a second hinge hole. The battery pack anti-collision device also includes a hinge shaft, which is fixedly connected to an end of the connecting piece away from the first hinge hole; a second bearing is provided in the second hinge hole, the outer ring of the second bearing is fixed to the hole wall surface of the second hinge hole, and the inner ring of the second bearing is fixedly connected to the hinge shaft.

8. A control system, characterized in that: It comprises a receiving module, a processing module and an execution module; the execution module comprises the battery pack anti-collision device according to any one of claims 1 to 7; the receiving module is used to detect the vehicle speed and collect road information, and is used to transmit the vehicle speed and road information to the processing module; the processing module is used to obtain an instruction for adjusting the height of the anti-collision beam according to the received vehicle speed and road information, and is used to send the instruction to the execution module; after receiving the instruction, the execution module adjusts the height of the anti-collision beam according to the instruction.

9. The control system according to claim 8, characterized in that: The receiving module includes a vehicle speed sensor and a laser radar, wherein the vehicle speed sensor is used to detect the vehicle speed and the laser radar is used to collect road information; The processing module includes a memory, a vehicle controller and an active suspension controller. The memory stores the correspondence between standard vehicle speed and standard road information. The vehicle controller is used to analyze the collected vehicle speed and road information, and to compare the collected vehicle speed and road information with the standard vehicle speed and standard road information stored in the memory. The vehicle controller issues an instruction to the active suspension controller to adjust the height of the anti-collision beam based on the comparison result. After receiving the instruction, the active suspension controller controls the movement of the anti-collision beam.

10. A vehicle, characterized in that: It comprises a battery pack and the control system as claimed in claim 8 or 9.

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