Vehicle crash energy absorption system
By designing a collision energy absorption system in electric vehicles that separates the electric motor from the front subframe, the problem of protecting the battery pack during a collision is solved, achieving safe isolation between the electric motor and the battery pack and maximizing energy absorption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HYUNDAI MOTOR CO LTD
- Filing Date
- 2021-08-11
- Publication Date
- 2026-05-12
AI Technical Summary
In the event of a collision involving an electric vehicle, the battery components are easily damaged, and existing technologies are insufficient to effectively protect the battery components and absorb the collision energy.
Design a vehicle collision energy absorption system that separates the electric motor from the front subframe and connects them via support arms and support brackets, allowing the front subframe to rotate upwards during a collision to avoid colliding with the battery pack, and maximizing energy absorption through the design of the longitudinal members' notches and support arms.
It effectively protects the battery components, prevents collisions between the motor and the battery components, and maximizes the absorption and dispersion of collision energy.
Smart Images
Figure CN114312364B_ABST
Abstract
Description
[0001] Cross-reference to related applications
[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2020-0127562, filed on September 29, 2020, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This disclosure relates to a vehicle collision energy absorption system. Background Technology
[0004] In recent years, with increased awareness of the environmental crisis and the depletion of oil resources, research and development of environmentally friendly electric vehicles have been actively carried out. Electric vehicles include plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs), and fuel cell electric vehicles (FCEVs).
[0005] Electric vehicles include an electric motor located in the front compartment of the vehicle and a battery assembly mounted on the floor of the vehicle. The electric motor drives the front wheels of the vehicle, and the battery assembly provides power to the electric motor and other electrical / electronic components. The battery assembly includes one or more battery cells (or battery modules), electrical / electronic components associated with the battery cells, a battery housing that houses the battery cells and electrical / electronic components, and a cover that covers the top of the battery housing.
[0006] Electric vehicle battery packs are susceptible to fires caused by coolant leakage from cooling lines or interference between battery cells due to external impacts. To ensure the safe protection of battery packs in the event of a vehicle collision / impact, battery protection laws (regulations) have been established. Internal combustion engine vehicles only consider absorbing collision energy, while electric vehicles must not only absorb collision energy but also protect their battery packs according to battery protection laws.
[0007] Increased battery pack capacity extends the range of electric vehicles. However, as battery pack size increases, they may protrude forward. Therefore, more careful consideration must be given to battery pack protection during vehicle design.
[0008] In traditional electric vehicles, the electric motor is rigidly mounted between the chassis and the front subframe. Therefore, in the event of a collision / impact, the motor and the front subframe act as rigid bodies, significantly reducing the energy absorption capacity of the front subframe. Furthermore, the front subframe may impact the front end of the battery pack. Consequently, the battery pack cannot be safely protected.
[0009] The information described above in this background section is provided to help understand the background of the inventive concept and may include any technical concept known to those skilled in the art that is not considered prior art. Summary of the Invention
[0010] This disclosure relates to a vehicle collision energy absorption system. Specific embodiments relate to a vehicle collision energy absorption system capable of protecting battery components and absorbing collision energy in the event of a vehicle collision / impact. Embodiments of this disclosure address problems in the prior art while retaining the advantages of the prior art.
[0011] Embodiments of this disclosure provide a vehicle collision energy absorption system that, in the event of a vehicle collision / impact, allows the electric motor to separate from the front subframe and rotates the front subframe upward, thereby preventing the front subframe from colliding with the battery assembly and maximizing the dispersion and absorption of collision energy.
[0012] According to embodiments of this disclosure, a vehicle collision energy absorption system may include: a pair of front side members; a battery assembly disposed below the central floor of the vehicle; a front subframe disposed below the pair of front side members and in front of the battery assembly; and an electric motor mounted on the front subframe. The front subframe may be connected to the pair of front side members via a pair of support arms and a pair of support brackets, each support arm being disposed on the front subframe and each support bracket being disposed on each front side member.
[0013] The support arm can be pivotally connected to the support bracket via a pivot pin.
[0014] A pair of support arms and a pair of support brackets can be located behind the front mounting portion of the front subframe, so that the pair of support arms and a pair of support brackets can suppress deformation of the rear of the front subframe in the event of a frontal collision / impact with the vehicle.
[0015] The front subframe may include a pair of longitudinal members, a front transverse member connecting the front portion of the pair of longitudinal members, and a rear transverse member connecting the rear portion of the pair of longitudinal members. Support arms may project from each longitudinal member, support brackets may project from each front member toward the support arm, and pivot pins may extend through the support arms and support brackets.
[0016] The support bracket may include a front wall facing forward of the vehicle, a pair of side walls extending from the two edges of the front wall toward the rear of the vehicle, and a rear opening opposite the front wall. A pivot pin may extend through the pair of side walls and the support arm.
[0017] The longitudinal member may include a notch that guides the longitudinal member to deform into a V-shape in the event of a frontal collision / impact on the vehicle.
[0018] The notch can be recessed from the top surface of the longitudinal member toward the bottom of the vehicle.
[0019] The notch can be located in front of the support arm.
[0020] The front edge of the electric motor can be connected to the front transverse member of the front subframe via the front connecting part.
[0021] The rear edge of the electric motor can be pivotally connected to the rear transverse member of the front subframe via a rear connection.
[0022] A pair of support arms can be positioned between the front and rear connecting parts along the length of the vehicle.
[0023] The rear connection may include a rear pivot arm projecting from the rear edge of the motor toward the rear of the vehicle, a pair of rear pivot lugs projecting upward from the rear transverse member of the front subframe, and a rear pivot pin extending through the rear pivot arm and the pair of rear pivot lugs.
[0024] In the event of a frontal collision / impact on the vehicle, the rear pivot arm can separate from a pair of rear pivot lugs.
[0025] Each rear pivot lug may have a through hole through which the rear pivot pin passes and a groove extending from the through hole toward the rear of the vehicle, the width of which may be smaller than the diameter of the through hole. Attached Figure Description
[0026] The above and other objects, features and advantages of embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
[0027] Figure 1 A plan view of a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown;
[0028] Figure 2 It shows along Figure 1 A cross-sectional view taken from line AA;
[0029] Figure 3 It shows Figure 2 A magnified view of part B;
[0030] Figure 4 A bottom view of a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown;
[0031] Figure 5 A left-side view of a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown;
[0032] Figure 6 A left perspective view of a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown;
[0033] Figure 7 A perspective view of a support arm and support bracket in a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown;
[0034] Figure 8A perspective view is shown of a structure in which the top end of a support arm in a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is connected to a support bracket via a pivot pin.
[0035] Figure 9 It shows along Figure 8 A cross-sectional view taken from line CC;
[0036] Figure 10 A perspective view of a notch located in front of a support arm in a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown; and
[0037] Figure 11 A plan view of a vehicle collision energy absorption system according to another exemplary embodiment of the present disclosure is shown.
[0038] 1: Central Floor
[0039] 2: Dashboard
[0040] 3: Front component
[0041] 5: Protective panel components
[0042] 6: Bumper crossbeam mounting bracket
[0043] 7: Front bumper crossbeam
[0044] 8: Crash box
[0045] 9: Subframe mounting bracket
[0046] 10: Front subframe
[0047] 11: Longitudinal members
[0048] 12: Front transverse member
[0049] 13: Rear transverse member
[0050] 14: Front extension
[0051] 21: First front connecting part
[0052] 22: Second front connecting part
[0053] 23: Rear Connecting Part
[0054] 31: First front pivot arm
[0055] 32: First anterior pivoting bulge
[0056] 33: First front pivot pin
[0057] 35: Second front pivot arm
[0058] 36: Second anterior pivot convex ear
[0059] 37: Second front pivot pin
[0060] 41: Rear pivot arm
[0061] 42: Posterior pivot convex ear
[0062] 43: Rear pivot pin
[0063] 51: Front mounting section
[0064] 52: Central Installation Department
[0065] 53: Rear Installation Section
[0066] 61: Support arm
[0067] 62: Support bracket
[0068] 63: Pivot pin
[0069] 66: Battery Components
[0070] 70: Electric motor Detailed Implementation
[0071] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals will be used throughout to denote the same or equivalent elements. Furthermore, detailed descriptions of well-known technologies associated with this disclosure will be omitted to avoid unnecessarily obscuring the gist of the disclosure.
[0072] Terms such as first, second, A, B, (a), and (b) are used to describe elements in exemplary embodiments of this disclosure. These terms are used only to distinguish one element from another, and the inherent characteristics, sequence, or order of the corresponding elements are not limited by these terms. Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Such terms, as defined in a general dictionary, should be interpreted as having the same meaning as in the context of the relevant technical field and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined as having such a meaning in this application.
[0073] Figure 1 The structure of a vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure is shown, located in front of the dashboard 2. The dashboard 2 can be used as a partition separating the front compartment from the passenger compartment, and the electric motor 70, transmission, heat exchanger, etc. can be disposed in the front compartment.
[0074] Reference Figure 1A pair of front side members 3 may be disposed at the front of the vehicle. The pair of front side members 3 may be spaced apart from each other in the width direction of the vehicle, and each front side member 3 may extend in the length direction of the vehicle. Each front side member 3 may extend through the bottom of the dashboard 2. A pair of front pillars (not shown) may be connected to the side edges of the dashboard 2. A pair of protective plate members 5 may be spaced apart from each other in the width direction of the vehicle, and each protective plate member 5 may extend from the corresponding front pillar to the front end of the corresponding front side member 3. (See reference...) Figure 4 The two ends of the front bumper crossbeam 7 can be mounted on a pair of bumper crossbeam mounting brackets 6 via a pair of impact boxes 8. For example... Figure 1 As shown, the front end of the protective plate component 5 and the front end of the front side component 3 can be installed on the corresponding bumper beam mounting bracket 6 by welding, using fasteners, or other means.
[0075] Reference Figure 1 and Figure 4 The front subframe 10 may be disposed below a pair of front side members 3. The front subframe 10 may include a pair of longitudinal members 11, a front transverse member 12 connecting the front portions of the pair of longitudinal members 11, a rear transverse member 13 connecting the rear portions of the pair of longitudinal members 11, and a pair of front extensions 14 extending from the pair of longitudinal members 11 toward the front of the vehicle. Each longitudinal member 11 may extend in the length direction of the vehicle, and the longitudinal member 11 may be disposed below the corresponding front side member 3. The front transverse member 12 and the rear transverse member 13 may extend in the width direction of the vehicle, and the front extensions 14 may extend from the longitudinal members 11 toward the front of the vehicle, respectively.
[0076] Reference Figure 4 and Figure 6 A pair of attachment arms 18 may protrude from a pair of longitudinal members 11, and each attachment arm 18 may protrude from the longitudinal member 11 toward the front member 3. A pair of lower control arms 15 may be connected to the pair of longitudinal members 11. The front end of the lower control arm 15 may be mounted on the central portion of the longitudinal member 11 via a mounting bracket 15a, and the rear end of the lower control arm 15 may be mounted on the rear portion of the longitudinal member 11.
[0077] Reference Figures 1 to 4 The front subframe 10 may include a pair of front mounting portions 51 mounted on a pair of subframe mounting brackets 9, a pair of central mounting portions 52 mounted on the central portion of a pair of front side members 3, and a pair of rear mounting portions 53 mounted on the rear extension 3a of a pair of front side members 3. Each front mounting portion 51 may be located on the front portion of the front extension 14, each central mounting portion 52 may be located on the top end of the attachment arm 18, and each rear mounting portion 53 may be located on the rear end of the longitudinal member 11.
[0078] Reference Figure 4The battery assembly 66 may be located behind the front subframe 10, and the battery assembly 66 may be located below the central floor 1.
[0079] Reference Figure 6 A pair of subframe mounting brackets 9 can be attached to a pair of bumper beam mounting brackets 6 respectively. Each front component 3 may have a rear extension 3a extending toward the rear of the vehicle, and the rear extension 3a may be bent toward the rear of the vehicle from the rear end of the front component 3.
[0080] Reference Figure 1 and Figure 4 The motor 70 can be mounted on the front subframe 10. The front edge of the motor 70 can be connected to the front transverse member 12 of the front subframe 10, and the rear edge of the motor 70 can be connected to the rear transverse member 13 of the front subframe 10.
[0081] According to an exemplary embodiment, the front edge of the electric motor 70 can be connected to the front subframe 10 via one or more front connecting portions 21 and 22. Specifically, the front edge of the electric motor 70 can be pivotally connected to the front transverse member 12 of the front subframe 10 via a first front connecting portion 21 and a second front connecting portion 22, and the first front connecting portion 21 and the second front connecting portion 22 can be spaced apart from each other in the width direction of the vehicle. Figure 1 As shown, the first front connecting portion 21 may be adjacent to the left side of the vehicle, and the second front connecting portion 22 may be adjacent to the right side of the vehicle.
[0082] Reference Figure 1 The first front connection 21 may include a first front pivot arm 31 projecting from the front edge of the motor 70 toward the front transverse member 12 of the front subframe 10, a pair of first front pivot lugs 32 projecting upward from the front transverse member 12 of the front subframe 10, and a first front pivot pin 33 extending through the first front pivot arm 31 and the pair of first front pivot lugs 32. The first front pivot arm 31 may be inserted between the pair of first front pivot lugs 32, and the first front pivot pin 33 may pass through the pair of first front pivot lugs 32 and the first front pivot arm 31. The first front pivot pin 33 may extend in the width direction of the vehicle, and the first front pivot arm 31 and / or the first front pivot lugs 32 may pivot about the first front pivot pin 33.
[0083] Reference Figure 1The second front connection 22 may include a second front pivot arm 35 projecting from the front transverse member 12 of the front subframe 10 toward the motor 70, a pair of second front pivot lugs 36 projecting downward from the front edge of the motor 70, and a second front pivot pin 37 extending through the second front pivot arm 35 and the pair of second front pivot lugs 36. The second front pivot arm 35 may be inserted between the pair of second front pivot lugs 36, and the second front pivot pin 37 may pass through the pair of second front pivot lugs 36 and the second front pivot arm 35. The second front pivot pin 37 may extend in the width direction of the vehicle, and the second front pivot arm 35 and / or the second front pivot lugs 36 may pivot about the second front pivot pin 37.
[0084] Since the first front pivot arm 31 protrudes from the front edge of the motor 70 and the second front pivot arm 35 protrudes from the front transverse member 12 of the front subframe 10, the front edge of the motor 70 can be securely connected to the front transverse member 12 of the front subframe 10.
[0085] According to another exemplary embodiment, such as Figure 11 As shown, the front edge of the electric motor 70 is rigidly connected to the front transverse member 12 of the front subframe 10 via a first front connecting portion 210 and a second front connecting portion 220. The first front connecting portion 210 may include a first front mounting bracket 215, which rigidly connects the front edge of the electric motor 70 and the front transverse member 12 of the front subframe 10. One end of the first front mounting bracket 215 may be fixed to the front edge of the electric motor 70, and the other end may be fixed to the front transverse member 12. The second front connecting portion 220 may include a second front mounting bracket 225, which rigidly connects the front edge of the electric motor 70 and the front transverse member 12 of the front subframe 10. One end of the second front mounting bracket 225 may be fixed to the front edge of the electric motor 70, and the other end may be fixed to the front transverse member 12. The first front connecting portion 210 and the second front connecting portion 220 may be spaced apart from each other in the width direction of the vehicle. Figure 11 As shown, the first front connecting portion 210 may be adjacent to the right side of the vehicle, and the second front connecting portion 220 may be adjacent to the left side of the vehicle.
[0086] According to an exemplary embodiment of the present disclosure, the rear edge of the electric motor 70 can be pivotally connected to the front subframe 10 via the rear connection portion 23.
[0087] Reference Figure 1 and Figure 2The rear connection 23 may include a rear pivot arm 41 projecting from the rear edge of the motor 70 toward the rear of the vehicle, a pair of rear pivot lugs 42 projecting upward from the rear transverse member 13 of the front subframe 10, and a rear pivot pin 43 extending through the rear pivot arm 41 and the pair of rear pivot lugs 42. The tip 42a of each rear pivot lug 42 may be bent toward the motor 70, and the rear pivot arm 41 may be inserted between the pair of rear pivot lugs 42. The rear pivot pin 43 may pass through the pair of rear pivot lugs 42 and the rear pivot arm 41. The rear pivot pin 43 may extend in the width direction of the vehicle, and the rear pivot arm 41 and / or the rear pivot lugs 42 may pivot about the rear pivot pin 43.
[0088] Reference Figure 4 The first front connecting portion 21 and the second front connecting portion 22 can be located behind the front mounting portion 51 of the front subframe 10 in the length direction of the vehicle, and the rear connecting portion 23 can be located in front of the rear mounting portion 53 of the front subframe 10 in the length direction of the vehicle.
[0089] Reference Figures 5 to 10 The front subframe 10 is connected to a pair of front side members 3 via a pair of support arms 61 and a pair of support brackets 62. Each support arm 61 is pivotally connected to the corresponding support bracket 62 via a pivot pin 63. The pair of support arms 61 and the pair of support brackets 62 can guide the front subframe 10 to rotate upward in the event of a frontal collision / impact.
[0090] Each support arm 61 extends from a corresponding longitudinal member 11 of the front subframe 10 toward a corresponding front member 3, and each support bracket 62 protrudes from the bottom surface of the front member 3 toward the support arm 61. The tip 61a of the support arm 61 is received in the support bracket 62, and a pivot pin 63 extends through the tip 61a of the support arm 61 and the support bracket 62. (Refer to...) Figure 9 The support bracket 62 may include a front wall 62a facing forward of the vehicle, a pair of side walls 62b extending from the two edges of the front wall 62a, and a rear opening 62c opposite to the front wall 62a. A pivot pin 63 may extend in the width direction of the vehicle, and the support arm 61 and / or the support bracket 62 may pivot about the pivot pin 63. Specifically, the pivot pin 63 may pass through the pair of side walls 62b and the top end 61a of the support arm 61, the front wall 62a and the pair of side walls 62b may define a space to receive the top end 61a of the support arm 61, and the rear opening 62c may face rearward of the vehicle. During a frontal collision / impact on the vehicle, when the load is transferred to the front subframe 10, the front subframe 10 may move rearward of the vehicle, and the support arm 61 may rotate about the pivot pin 63. Specifically, the support arm 61 may rotate upward through the rear opening 62c of the support bracket 62 (see [link to relevant documentation]). Figure 7(In the direction indicated by the middle arrow R). As the front subframe 10 rotates upward, it may collide with the dashboard 2, thus avoiding a collision with the battery assembly 66.
[0091] Reference Figures 4 to 6 The support arm 61 extends from the center of the longitudinal member 11 of the front subframe 10. The support arm 61 and the support bracket 62 are located between the central mounting portion 52 and the rear mounting portion 53 of the front subframe 10 in the longitudinal direction of the vehicle. A pair of support arms 61 and a pair of support brackets 62 are located rearward of the front portion of the front subframe 10, and a pair of support arms 61 and a pair of support brackets 62 are located in front of the rear portion of the front subframe 10. Specifically, the support arm 61 and the support bracket 62 are located between the first and second front connecting portions 21 and 22 and the rear connecting portion 23. (Refer to...) Figure 4 The support arm 61 can extend from the front mounting portion 51 to the rear of the vehicle at a first distance t1, and the support arm 61 can extend from the first and second front connecting portions 21 and 22 to the rear of the vehicle at a second distance t2. The support arm 61 can extend from the rear mounting portion 53 to the front of the vehicle at a third distance t3, and the support arm 61 can extend from the rear connecting portion 23 to the front of the vehicle at a fourth distance t4.
[0092] Each longitudinal member 11 may include a notch 65 that guides the longitudinal member 11 to deform into a V-shape in the event of a frontal collision / impact on the vehicle. Specifically, the notch 65 may be recessed from the top surface of the longitudinal member 11 toward the bottom of the vehicle, and the notch 65 may be located in front of the support arm 61. (See reference...) Figure 10 The notch 65 may be located between the support arm 61 and the mounting bracket 15a for mounting the front end of the lower control arm 15. When a load is transferred to the longitudinal member 11 in the event of a frontal collision / impact of the vehicle, the longitudinal member 11 may deform into a V-shape via the notch 65 (see...). Figure 5 The part shown by the double-dotted line in section 11a).
[0093] If the support arm 61 is strong enough, the rear connection 23 can be broken before the front of the front subframe 10 deforms in a frontal collision / impact, thus allowing the motor 70 to separate from the front subframe 10. However, if the support arm 61 is not strong enough, such that the rear connection 23 is not broken even after the front of the front subframe 10 deforms, the motor 70 may not separate from the front subframe 10 and may not guide the front subframe 10 to rotate upwards. Therefore, the front subframe 10 may move linearly towards the rear of the vehicle and impact the front end of the battery assembly 66. To separate the motor 70 from the front subframe 10 before the front of the front subframe 10 deforms in a frontal collision / impact, the breakage of the rear connection 23 needs to be guided. (Refer to...) Figure 3Each rear pivot lug 42 may have a through hole 45 through which the rear pivot pin 43 passes and a groove 46 extending from the through hole 45 toward the rear of the vehicle. The width of the groove 46 may be smaller than the diameter of the through hole 45. When a collision load is transferred to the motor 70 during a frontal collision / impact of the vehicle, the motor 70 may move toward the rear of the vehicle, so the rear pivot pin 43 may impact the groove 46, and the rear pivot lug 42 may break along the groove 46. That is, when a frontal collision / impact of the vehicle occurs, the rear pivot lug 42 may break due to the groove 46, and the rear connection 23 may be completely destroyed. Due to the damage to the rear connection 23, the rear edge of the motor 70 may be completely separated from the rear transverse member 13 of the front subframe 10.
[0094] According to the above embodiments of this disclosure, a pair of support arms 61 and a pair of support brackets 62 may be located behind the front mounting portion 51 and / or the first and second front connecting portions 21 and 22 of the front subframe 10. Therefore, in the event of a frontal collision / impact of the vehicle, the pair of support arms 61 and the pair of support brackets 62 may guide the front portion of the front subframe 10 to deform first, and suppress the deformation of the rear portion of the front subframe 10 or suppress the movement of the front subframe 10 toward the rear of the vehicle.
[0095] When the load generated during a frontal collision / impact of the vehicle is transmitted along the longitudinal member 11 and the electric motor 70, the longitudinal member 11 can be bent (deformed) into a V-shape through the notch 65, allowing the collision energy to be absorbed, and the rear connection 23 is destroyed, allowing the rear edge of the electric motor 70 to separate from the rear transverse member 13 of the front subframe 10. Therefore, the electric motor 70 can collide with the dashboard 2 to dissipate the collision energy.
[0096] In the event of a frontal collision / impact on the vehicle, the front subframe 10 is transferred to the rear of the vehicle due to the load being transferred, and the support arm 61 is rotatable about the pivot pin 63. Specifically, the support arm 61 can rotate upwards through the rear opening 62c of the support bracket 62 (see...). Figure 7 (In the direction indicated by the middle arrow R). The front subframe 10 rotates upward, thereby preventing it from colliding with the battery assembly 66.
[0097] As described above, the vehicle collision energy absorption system according to an exemplary embodiment of the present disclosure allows the electric motor to separate from the front subframe and rotate the front subframe upward during a collision / impact of the vehicle, thereby preventing the front subframe from colliding with the battery assembly and maximizing the dispersion and absorption of collision energy.
[0098] Although the present disclosure has been described above with reference to exemplary embodiments and accompanying drawings, the present disclosure is not limited thereto, and various modifications and alterations may be made by those skilled in the art to which this disclosure pertains without departing from the spirit and scope of the present disclosure as claimed in the claims.
Claims
1. A vehicle collision energy absorption system, the system comprising: A pair of front components; The battery assembly is located beneath the central floor of the vehicle; A front subframe, disposed below the pair of front side members and in front of the battery assembly, is connected to the pair of front side members via a pair of support arms and a pair of support brackets, wherein each support arm of the pair of support arms is disposed on the front subframe, and each support bracket of the pair of support brackets is disposed on each front side member of the pair of front side members; and The electric motor is mounted on the front subframe. in, Each of the pair of support arms is pivotally connected to each of the pair of support brackets via a pair of pivot pins. Each support bracket includes a front wall facing forward of the vehicle, a pair of side walls extending from the two edges of the front wall toward the rear of the vehicle, and a rear opening opposite the front wall; and Each pivot pin extends through the pair of sidewalls and the corresponding support arm.
2. The system according to claim 1, wherein, The front subframe includes a pair of longitudinal members, a front transverse member connecting the front portion of the pair of longitudinal members, and a rear transverse member connecting the rear portion of the pair of longitudinal members. Each of the pair of support arms protrudes from each of the pair of longitudinal members; Each of the pair of support brackets protrudes from each of the front members of the pair of front members toward each of the pair of support arms; and Each of the pair of pivot pins extends through each of the pair of support arms and each of the pair of support brackets.
3. The system according to claim 2, wherein, Each of the pair of longitudinal members includes a notch that guides the longitudinal member to deform into a V-shape upon a frontal collision or impact with the vehicle.
4. The system according to claim 3, wherein, The notch is recessed from the top surface of the longitudinal member toward the bottom of the vehicle.
5. The system according to claim 3, wherein, The notch is located in front of the support arm.
6. The system according to claim 1, wherein, The pair of support arms and the pair of support brackets are located behind the front mounting portion of the front subframe, wherein the pair of support arms and the pair of support brackets suppress deformation of the rear portion of the front subframe in the event of a frontal collision or impact with the vehicle.
7. A vehicle collision energy absorption system, the system comprising: A pair of front components; The battery assembly is located below the central floor of the vehicle; A front subframe, disposed below the pair of front side members and in front of the battery assembly, is connected to the pair of front side members via a pair of support arms and a pair of support brackets, wherein each support arm of the pair of support arms is disposed on the front subframe, and each support bracket of the pair of support brackets is disposed on each front side member of the pair of front side members; and An electric motor is mounted on the front subframe, wherein the front edge of the electric motor is connected to the front transverse member of the front subframe via a front connecting portion. in, Each of the pair of support arms is pivotally connected to each of the pair of support brackets via a pair of pivot pins. Each support bracket includes a front wall facing forward of the vehicle, a pair of side walls extending from the two edges of the front wall toward the rear of the vehicle, and a rear opening opposite the front wall; and Each pivot pin extends through the pair of sidewalls and the corresponding support arm.
8. The system according to claim 7, wherein, The rear edge of the electric motor is pivotally connected to the rear transverse member of the front subframe via a rear connection.
9. The system according to claim 8, wherein, The pair of support arms are located between the front connection and the rear connection in the longitudinal direction of the vehicle.
10. The system according to claim 8, wherein, The rear connection includes a rear pivot arm projecting from the rear edge of the electric motor toward the rear of the vehicle, a pair of rear pivot lugs projecting upward from the rear transverse member of the front subframe, and a rear pivot pin extending through the rear pivot arm and the pair of rear pivot lugs.
11. The system according to claim 10, wherein, In the event of a frontal collision or impact with the vehicle, the rear pivot arm separates from the pair of rear pivot lugs.
12. The system according to claim 10, wherein, Each rear pivot lug has a through-hole through which the rear pivot pin passes and a groove extending from the through-hole toward the rear of the vehicle; and The width of the groove is smaller than the diameter of the through hole.
13. A vehicle comprising: Central floor; The battery assembly is located below the central floor. A pair of front components; A front subframe, disposed below the pair of front side members and in front of the battery assembly, is connected to the pair of front side members via a pair of support arms and a pair of support brackets, wherein each support arm of the pair of support arms is disposed on the front subframe, and each support bracket of the pair of support brackets is disposed on each front side member of the pair of front side members; and An electric motor is mounted on the front subframe, wherein the front edge of the electric motor is connected to the front transverse member of the front subframe via a front connector, and the rear edge of the electric motor is pivotally connected to the rear transverse member of the front subframe via a rear connector. in, Each of the pair of support arms is pivotally connected to each of the pair of support brackets via a pair of pivot pins. Each support bracket includes a front wall facing forward of the vehicle, a pair of side walls extending from the two edges of the front wall toward the rear of the vehicle, and a rear opening opposite the front wall; and Each pivot pin extends through the pair of sidewalls and the corresponding support arm.
14. The vehicle according to claim 13, wherein: The front subframe includes a pair of longitudinal members, a front transverse member connecting the front portion of the pair of longitudinal members, and a rear transverse member connecting the rear portion of the pair of longitudinal members. Each of the pair of support arms protrudes from each of the pair of longitudinal members; Each of the pair of support brackets protrudes from each of the front members of the pair of front members toward each of the pair of support arms; and Each of the pair of pivot pins extends through each of the pair of support arms and each of the pair of support brackets.
15. The vehicle according to claim 14, wherein, Each of the pair of longitudinal members includes a notch that guides the longitudinal member to deform into a V-shape upon a frontal collision or impact with the vehicle.
16. The vehicle according to claim 15, wherein, The notch is recessed from the top surface of the longitudinal member toward the bottom of the vehicle.
17. The vehicle according to claim 15, wherein, The notch is located in front of the support arm.