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CN-122009069-A - Crash energy absorbing unit for a vehicle, crash energy absorbing system, vehicle, method for crash energy absorption of a vehicle and computer program product

CN122009069ACN 122009069 ACN122009069 ACN 122009069ACN-122009069-A

Abstract

The invention relates to a crash energy absorbing unit for a vehicle, which is arranged between a body of the vehicle and a vehicle component and is intended to absorb crash energy of the vehicle component against the body during a crash of the vehicle, which crash energy absorbing unit comprises at least a crash energy absorbing device, which is movably connected to the body via a position adjusting device, and a position adjusting device, which is configured to be adapted to adjusting the position of the crash energy absorbing device relative to the body based at least on at least one parameter related to the crash of the vehicle. The invention also relates to a collision energy absorbing system, a vehicle, a method for collision energy absorption of a vehicle and a computer program product. According to the invention, the collision energy of the vehicle component can be efficiently absorbed during the collision of the vehicle, and the position of the collision energy absorbing device is adjusted based on the parameters related to the collision, so that the invasion of the collision of the vehicle component to the vehicle body structure, such as a passenger cabin or a power battery space, is reliably avoided, and the safety of passengers and the vehicle is improved.

Inventors

  • JIANG YUECHEN

Assignees

  • 梅赛德斯-奔驰集团股份公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (19)

  1. 1. A crash energy absorbing unit (20) for a vehicle (1), wherein the crash energy absorbing unit (20) is arranged between a body (3) of the vehicle (1) and a vehicle component (4) and is intended to absorb crash energy of the vehicle component (4) against the body (3) during a crash of the vehicle (1), wherein the crash energy absorbing unit (20) comprises at least a crash energy absorbing means (21) and a position adjusting means (22), the crash energy absorbing means (21) being movably connected with the body (3) via the position adjusting means (22), and the position adjusting means (22) being configured to be adapted to adjust the position of the crash energy absorbing means (21) relative to the body (3) at least based on at least one parameter related to a crash of the vehicle (1).
  2. 2. The crash energy absorbing unit (20) of claim 1, wherein, The position of the collision energy absorber (21) relative to the vehicle body (3) is additionally adjusted on the basis of dynamic parameters of the vehicle (1) and/or on the basis of properties of the vehicle component (4) and/or on the basis of properties of the occupants in the vehicle (1) and/or the positions of the occupants.
  3. 3. The collision energy absorbing unit (20) according to claim 1 or 2, wherein, The crash energy absorber (21) comprises at least one of a friction crash energy absorber, a crush crash energy absorber, a hydraulic or pneumatic damping crash energy absorber, and/or At least one parameter related to the collision of the vehicle (1) comprises a collision direction, a collision acceleration, a collision speed, a collision duration, and/or The position of the impact energy absorbing device (21) relative to the vehicle body (3) comprises at least one of an angular position, a lateral position, a height position, and/or The collision energy absorbing device (21) is detachably connected with the position adjusting device (22).
  4. 4. A collision energy absorbing unit (20) according to one of claims 1 to 3, wherein the position adjustment device (22) comprises: A hinge element (221), which hinge element (221) connects the impact energy absorbing device (21) with the vehicle body (3) and is configured to be suitable for rotating the impact energy absorbing device (21) relative to the vehicle body (3), and/or -A rail element (222), which rail element (222) is arranged on the vehicle body (3) and is configured to be adapted to moving the impact absorbing device (21) in a transverse direction (Y) and/or a height direction (Z) of the vehicle (1) relative to the vehicle body (3).
  5. 5. The crash energy absorbing unit (20) according to claim 4, wherein the crash energy absorbing unit (20) further comprises a driving device (23), the driving device (23) being configured to drive the position adjustment device (22) such that the position of the crash energy absorbing device (21) can be adjusted in a controlled manner.
  6. 6. The collision energy absorbing unit (20) according to claim 4 or 5, wherein, One end of the collision energy absorbing device (21) is connected with the hinge element (221) and/or the guide rail element (222), and the other end of the collision energy absorbing device (21) is connected with the vehicle component (4) or is opposite to the vehicle component (4).
  7. 7. Collision energy absorbing unit (20) according to one of claims 1 to 6, wherein a plurality of collision energy absorbing units (20) is provided, the plurality of collision energy absorbing units (20) being distributed over the vehicle body (3) in the transverse direction (Y) and/or the height direction (Z) of the vehicle (1).
  8. 8. The crash energy absorbing unit (20) according to one of claims 1 to 7, wherein the crash energy absorbing unit (20) is arranged at a front region of a central passage (32) of the vehicle body (3) in a longitudinal direction (X) of the vehicle (1), behind which a passenger compartment (31) and/or a power battery (5) of the vehicle (1) is located, wherein the vehicle component (4) is a powertrain component of the vehicle (1), such as an engine and/or an electric motor.
  9. 9. The crash energy absorbing unit (20) of claim 4, wherein, The crash energy absorber (21) comprises a first friction element (211) and a second friction element (212), for example friction plates, the first friction element (211) being connected to each other in a friction-movable manner relative to the second friction element (212), the first friction element (211) being connected to the hinge element (221), the second friction element (212) being connected to the vehicle component (4), and/or The crash energy absorber (21) comprises a crush element (213), for example a crush box, the crush element (213) being made of an at least partially plastically deformable material, and one end of the crush element (213) being connected to the hinge element (221), the other end of the crush element (213) being connected to the vehicle component (4), and/or The crash energy absorber (21) comprises a spring damper element (214), the spring damper element (214) comprises a damper element (2141) and a spring element (2142) sleeved on the damper element (2141), one end of the spring damper element (214) is connected with the hinge element (221), the other end of the spring damper element (214) is connected with the vehicle component (4), and/or The hinge element (221) is arranged on the guide rail element (222).
  10. 10. A crash energy absorbing system (2) for a vehicle (1), wherein the crash energy absorbing system (2) comprises: collision energy absorbing unit (20) according to one of claims 1 to 9; A sensing device (6), the sensing device (6) being configured to be adapted to detect at least one parameter related to a collision of the vehicle (1), and -A control device (7), the control device (7) being in data connection with the sensing device (6) and the crash energy absorbing unit (20) and being configured to be adapted to generate a control signal for adjusting the position of the crash energy absorbing device (21) relative to the vehicle body (3) based at least on at least one parameter related to a crash.
  11. 11. The crash energy absorption system (2) according to claim 10, wherein, The sensor device (6) comprises a crash sensor (61) and/or an acceleration sensor (62), and the sensor device (6) is arranged on the vehicle component (4) and/or on the vehicle body (3).
  12. 12. Collision energy absorbing system (2) according to claim 10 or 11, wherein, The collision energy absorption system (2) further comprises an occupant detection device (8) for detecting an occupant and/or a dynamic parameter detection device (9) for detecting a dynamic parameter of the vehicle (1), wherein the control device (7) is in data connection with the occupant detection device (8) and/or the dynamic parameter detection device (9), and/or The control device (7) stores therein attributes of the vehicle component (4) corresponding to the collision energy absorbing unit (20).
  13. 13. A vehicle (1), the vehicle (1) comprising a collision energy absorbing unit (20) according to one of claims 1 to 9 or comprising a collision energy absorbing system (2) according to one of claims 10 to 12.
  14. 14. The vehicle (1) according to claim 13, wherein the vehicle (1) is a fuel vehicle or a new energy vehicle.
  15. 15. Method (100) for crash energy absorption of a vehicle (1), wherein the method (100) is performed by a crash energy absorption system (2) according to one of claims 10 to 12 and comprises the steps of: s110 detecting at least one parameter related to a collision of the vehicle (1); s120 generating and outputting a control signal for adjusting the position of a crash energy absorber (21) of the crash energy absorber system (2) relative to the vehicle body (3) on the basis of at least one parameter relating to the crash of the vehicle (1), and S130, controlling a position adjusting device (22) of the collision energy absorption system (2) based on the control signal.
  16. 16. The method (100) according to claim 15, wherein in step S120 the control signal is additionally generated and output based on dynamic parameters of the vehicle (1) and/or based on properties of the vehicle component (4) and/or based on occupant properties and/or occupant positions in the vehicle (1).
  17. 17. Method (100) according to claim 15 or 16, wherein in step S130 the position adjustment device (22) is adjusted such that the crash energy absorber (21) rotates relative to the vehicle body (3) and/or moves in the height direction (Z) of the vehicle (1) and/or moves in the transverse direction (Y) of the vehicle (1) such that the crash forces of the vehicle components (4) are directed obliquely downwards of the vehicle body (3).
  18. 18. Method (100) according to one of claims 15 to 17, wherein a plurality of crash energy absorbing units (20) are provided, the crash energy absorbing units (20) being arranged at intervals along a height direction (Z) of the vehicle (1), wherein in step S130 the respective crash energy absorbing devices (21) of the plurality of crash energy absorbing units (20) are adjusted from top to bottom along the height direction (Z) such that the downward inclination angle of the respective crash energy absorbing devices (21) with respect to the vehicle body (3) increases in sequence from top to bottom.
  19. 19. A computer program product, such as a computer-readable program carrier, comprising or storing computer program instructions which, when executed by a processor, at least assist in carrying out the steps of the method (100) according to any one of claims 15 to 18.

Description

Crash energy absorbing unit for a vehicle, crash energy absorbing system, vehicle, method for crash energy absorption of a vehicle and computer program product Technical Field The present invention relates to the field of vehicle safety, in particular to a collision energy absorbing unit for a vehicle. The invention further relates to a crash energy absorber system for a vehicle, a method for crash energy absorption of a vehicle and a computer program product. Background As vehicles enter into the life of common people, the safety of the vehicles is becoming one of the focus of attention. Typically, in a front region of the vehicle, there are arranged powertrain components, such as an engine or an electric motor, which are located in front of the passenger compartment. In the event of a crash, these drive train components, as a result of the crash deformation of the front region, move in the direction of the crash toward the central channel of the vehicle body, collide with it and possibly penetrate into the passenger compartment either partially or completely, which not only damages the drive train components, but also severely threatens the safety of the occupants. Further, in a new energy vehicle such as a plug-in hybrid electric vehicle, since an engine and a motor are disposed in a front region and a power battery is disposed below a passenger compartment floor, a powertrain component may also intrude into a space where the power battery is located when a collision occurs. This not only causes damage to the power cells, but also creates a fire or even explosion risk when severe. Accordingly, there remains a need for improvements in the art for at least some of the above-mentioned problems. Disclosure of Invention Based on this, the present invention proposes an efficient solution which not only overcomes the deficiencies of the prior art solutions, but also effectively protects the passenger compartment and other important vehicle components, such as the high voltage battery. According to a first aspect of the present invention, there is provided a crash energy absorbing unit for a vehicle, wherein the crash energy absorbing unit is arranged between a body of the vehicle and a vehicle component and is adapted to absorb crash energy of the vehicle component against the body during a crash of the vehicle, wherein the crash energy absorbing unit comprises at least a crash energy absorbing means and a position adjustment means, the crash energy absorbing means being movably connected with the body via the position adjustment means, and the position adjustment means being configured to be adapted to adjust the position of the crash energy absorbing means relative to the body based at least on at least one parameter related to the crash of the vehicle. The basic idea of the invention is that by providing the collision energy absorbing unit of the invention between the body of the vehicle and a vehicle component, such as an engine or an electric motor, collision energy of the vehicle component can be absorbed efficiently at the time of a vehicle collision. At the same time, the position of the crash energy absorber can be adjusted on the basis of crash-related parameters, so that intrusion of the vehicle body structure, such as the passenger compartment or the power battery space, into the crash of the vehicle components can be reliably avoided, and the safety of the passengers and the vehicle in the event of a crash can be improved. Advantageous configurations of the solution according to the invention can be obtained from the following alternative embodiments. An alternative embodiment of the crash energy unit according to the invention provides for the position of the crash energy means relative to the vehicle body to be adjusted additionally on the basis of dynamic parameters of the vehicle and/or on the basis of properties of the vehicle components and/or on the basis of properties of the occupants in the vehicle and/or on the basis of the position of the occupants. An alternative embodiment of the crash energy absorbing unit according to the invention is provided in that the crash energy absorbing means comprise at least one of friction-type crash energy absorbing means, crush-type crash energy absorbing means, hydraulic or pneumatic damping crash energy absorbing means. An alternative embodiment of the crash energy absorbing unit according to the invention provides that the at least one parameter related to the crash of the vehicle comprises a crash direction, a crash acceleration, a crash speed, a crash duration. An alternative embodiment of the crash energy absorbing unit according to the invention provides that the position of the crash energy absorbing means relative to the vehicle body comprises at least one of an angular position, a transverse position, a height position. An alternative embodiment of the crash energy absorbing unit according to the invention provides that the crash energy absorbi