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CN-224197827-U - Collision protection device for vehicle and vehicle

CN224197827UCN 224197827 UCN224197827 UCN 224197827UCN-224197827-U

Abstract

The present disclosure provides a crash protection device for a vehicle that includes a first connecting member having opposed first and second ends and a second connecting member having opposed third and fourth ends. The second end is connected to a first portion of the power plant, and the first end is fixedly connected to a frame member disposed rearward of the power plant in a first direction from outside the vehicle toward inside the vehicle. The third end is fixedly connected to the first connecting member between the first end and the second end, and the fourth end is connected to a second location of the power plant. The first direction is parallel to a level ground on which the vehicle is located. The second portion is farther from the horizontal ground than the first portion and closer to the vehicle interior in the first direction. The first and second connecting members drag the power device toward the level ground when the vehicle collides causing the frame member to drag the first connecting member toward the level ground. The collision protection device can improve the collision safety performance of the vehicle. The present disclosure also provides a vehicle including such a collision protection apparatus.

Inventors

  • LI XING
  • Mei Xinjiu
  • DENG SHAOJIE

Assignees

  • 大众汽车(中国)科技有限公司

Dates

Publication Date
20260505
Application Date
20260402

Claims (11)

  1. 1. A collision protection device (10) for a vehicle (1), characterized in that the vehicle (1) comprises a power unit (2) having a first portion (2 a) and a second portion (2 b) and a frame member (35) arranged behind the power unit (2) in a first direction (40) directed from the outside of the vehicle towards the inside of the vehicle, the first direction (40) being parallel to the horizontal ground when the vehicle (1) is on the horizontal ground, the second portion (2 b) being further away from the horizontal ground than the first portion (2 a) and closer to the inside of the vehicle in the first direction (40), the collision protection device (10) comprising: A first connecting member (20) having opposite first (21) and second (22) ends, said first (21) end being fixedly connected to said frame member (35) and said second (22) end being connected to said first portion (2 a), and A second connecting member (30) having opposite third (301) and fourth (302) ends, the third (301) end being fixedly connected to the first connecting member (20) between the first (21) and second (22) ends, and the fourth (302) end being connected to the second location (2 b); Wherein the first and second connection members (20, 30) are configured to cooperate with each other to drag the power plant (2) towards the horizontal ground when the vehicle (1) collides causing the frame member (35) to drag the first connection member (20) towards the horizontal ground.
  2. 2. The crash protection device (10) according to claim 1, characterized in that the second end (22) of the first connecting member (20) is connected to the first location (2 a) in a pivotable manner relative to the power unit (2) about a first pivot axis (RA 1), which first pivot axis (RA 1) is parallel to the horizontal ground and perpendicular to the first direction (40) when the vehicle (1) is on the horizontal ground.
  3. 3. The collision protection device (10) according to claim 2, characterized in that the collision protection device (10) further comprises a first rotating member (51), the first rotating member (51) being fixedly connected to the first portion (2 a) of the power plant (2), and the second end (22) of the first connecting member (20) being pivotably connected to the first rotating member (51).
  4. 4. A collision protection device (10) according to claim 3, characterized in that: The second end (22) of the first connecting member (20) and the first rotating member (51) are pivotably connected via a first rotating shaft (71), and The collision protection device (10) further comprises a first shock absorbing bushing (81) arranged around the first rotation shaft (71) at the pivot connection of the second end (22) and the first rotation member (51).
  5. 5. The crash protection device (10) according to claim 2, wherein the first connection member (20) further comprises a first body (23) extending between the first end (21) and the second end (22), the third end (301) of the second connection member (30) being fixedly connected to the first body (23), a section of the first body (23) between the first end (21) and the third end (301) having a lower bending stiffness than other sections of the first body (23), such that upon a crash of the vehicle (1) resulting in a force being applied by the power plant (2) to the second end (22) in the first direction (40), the section of the first body (23) tends to buckle away from the level ground.
  6. 6. The crash protection device (10) according to any one of claims 2 to 5, wherein the fourth end (302) of the second connecting member (30) is connected to the second location (2 b) in a pivotable manner relative to the power unit (2) about a second pivot axis (RA 2) parallel to the first pivot axis (RA 1).
  7. 7. The crash protection device (10) according to claim 6, wherein the crash protection device (10) further comprises a second rotational member (52), the second rotational member (52) being fixedly connected to the second portion (2 b) of the power plant (2), and the fourth end (302) of the second connection member (30) being pivotably connected to the second rotational member (52).
  8. 8. The collision protection device (10) according to claim 7, characterized in that: The fourth end (302) of the second connecting member (30) and the second rotating member (52) are pivotably connected via a second rotation shaft (72), and The crash protection device (10) further comprises a second shock absorbing bushing (82) arranged around the second rotation axis (72) at a pivotal connection of the fourth end (302) with the second rotation member (52).
  9. 9. The crash protection device (10) according to claim 6, wherein the second connection member (30) further comprises a second body (303) extending between the third end (301) and the fourth end (302), the third end (301) having a bending stiffness lower than a bending stiffness of the second body (303) such that the second connection member (30) tends to rotationally deform about the third end (301) when the vehicle (1) collides causing the power unit (2) to exert a force on the fourth end (302) in the first direction (40).
  10. 10. The collision protection device (10) according to any one of claims 1 to 5, characterized in that: the frame member (35) is part of a subframe (3) of the vehicle (1) arranged around the power plant (2), and/or The first part (2 a) being a part of the bottom of a housing (2 c) of the power plant (2) and the second part (2 b) being another part of the bottom or a part of the housing (2 c) facing the rear of the frame member (35) in the first direction (40), and/or The power plant (2) is a gearbox, an engine or an electric motor of the vehicle (1), and/or The collision protection device (10) further comprises a shock absorbing member (83) arranged at the connection point between the first end (21) of the first connecting member (20) and the frame member (35), and/or The first connecting member (20) and the second connecting member (30) are each in the form of a connecting rod.
  11. 11. A vehicle (1), characterized in that the vehicle (1) comprises: A power unit (2) having a first portion (2 a) and a second portion (2 b); a frame member (35) arranged behind the power unit (2) in a first direction (40) directed from the outside of the vehicle towards the inside of the vehicle, and The collision protection apparatus (10) according to any one of claims 1 to 10; Wherein the first direction (40) is parallel to the horizontal ground when the vehicle (1) is on the horizontal ground, the second location (2 b) is further from the horizontal ground than the first location (2 a) and is closer to the vehicle interior in the first direction (40); Wherein the first end (21) of the first connecting member (20) is fixedly connected to the frame member (35) and the second end (22) of the first connecting member (20) is connected to the first portion (2 a) of the power plant (2), and Wherein the third end (301) of the second connecting member (30) is fixedly connected to the first connecting member (20) between the first end (21) and the second end (22), and the fourth end (302) of the second connecting member (30) is connected to the second portion (2 b) of the power plant (2).

Description

Collision protection device for vehicle and vehicle Technical Field The present disclosure relates to the technical field of vehicle structures, and more particularly to a collision protection apparatus for a vehicle and a vehicle including such a collision protection apparatus. Background The crash safety performance of vehicles is increasingly gaining importance. In the event of a vehicle collision, a power plant such as a gearbox, an engine or a motor is displaced in the collision direction by an external load, and thus damages a device or structure located behind the power plant, even intrudes into the passenger compartment, threatening the safety of the occupants. Therefore, there is a need for a collision protection apparatus for effectively controlling a motion trajectory of a power plant when a vehicle collides, thereby improving collision safety performance of the vehicle. Disclosure of utility model The present disclosure is directed to a collision protection apparatus for a vehicle, which overcomes at least one of the above-mentioned technical problems. According to an aspect of the present disclosure, a collision protection apparatus for a vehicle is provided. The vehicle includes a power unit having a first portion and a second portion, and a frame member disposed rearward of the power unit in a first direction directed from an exterior of the vehicle toward an interior of the vehicle, the first direction being parallel to a level ground surface when the vehicle is on the level ground surface, the second portion being farther from the level ground surface than the first portion and closer to the interior of the vehicle in the first direction. The crash protection device includes a first connecting member having opposed first and second ends fixedly connected to the frame member and the second end connected to the first location, and a second connecting member having opposed third and fourth ends fixedly connected to the first connecting member between the first and second ends and the fourth end connected to the second location, wherein the first and second connecting members are configured to cooperate with one another to drag the power device toward the horizontal ground when the vehicle collides causing the frame member to drag the first connecting member toward the horizontal ground. In some embodiments, the second end of the first connecting member is pivotably connected to the first location about a first pivot axis relative to the power plant, the first pivot axis being parallel to the level ground and perpendicular to the first direction when the vehicle is on the level ground. In some embodiments, the crash protection apparatus further comprises a first rotating member fixedly connected to the first location of the power plant, and the second end of the first connecting member is pivotably connected to the first rotating member. In some embodiments, the second end of the first connecting member and the first rotating member are pivotably connected via a first axle, and the crash protection device further comprises a first shock absorbing bushing disposed about the first axle at a pivot connection location of the second end and the first rotating member. In some embodiments, the first connecting member further comprises a first body extending between the first end and the second end, the third end of the second connecting member being fixedly connected to the first body, a section of the first body between the first end and the third end having a lower bending stiffness than other sections of the first body, such that when the vehicle collides causing the power plant to apply a force to the second end in the first direction, the section of the first body tends to buckle away from the level ground. In some embodiments, the fourth end of the second connecting member is pivotally connected to the second location about a second pivot axis parallel to the first pivot axis relative to the power device. In some embodiments, the crash protection apparatus further comprises a second rotating member fixedly connected to the second location of the power plant, and the fourth end of the second connecting member is pivotably connected to the second rotating member. In some embodiments, the fourth end of the second connecting member and the second rotating member are pivotably connected via a second pivot shaft, and the crash protection apparatus further comprises a second shock absorbing bushing disposed about the second pivot shaft at a pivot connection location of the fourth end and the second rotating member. In some embodiments, the second connecting member further includes a second body extending between the third end and the fourth end, the third end having a lower bending stiffness than the second body such that the second connecting member tends to rotationally deform about the third end when the vehicle collides causing the power device to apply a force to the fourth end in the first direct