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CN-122008828-A - Suspension device for a vehicle, collision protection system for a vehicle, method for collision protection of a vehicle and computer program product

CN122008828ACN 122008828 ACN122008828 ACN 122008828ACN-122008828-A

Abstract

The invention relates to a suspension device (20) for a vehicle (1), the suspension device (20) comprising a suspension unit (21), the suspension unit (21) being connected between a body (4) of the vehicle (1) and a vehicle component (3) and being configured to be moved in a predetermined direction for moving the vehicle component (3) relative to the body (4), and a drive unit (22), the drive unit (22) being operatively connected with the suspension unit (21) and being configured to drive the suspension unit (21) in a predetermined direction under predetermined conditions. The invention also relates to a collision protection system for a vehicle, a method for collision protection of a vehicle and a computer program product. By means of the solution according to the invention, it is possible to adjust the position of the vehicle component, for example the vertical position, by means of the suspension device in the event of a collision, in order to avoid damage to the vehicle component or injury to pedestrians.

Inventors

  • JIANG YUECHEN

Assignees

  • 梅赛德斯-奔驰集团股份公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (17)

  1. 1. A suspension device (20) for a vehicle (1), wherein the suspension device (20) comprises: a suspension unit (21), the suspension unit (21) being connected between a body (4) of the vehicle (1) and a vehicle component (3) and being configured to be adapted to move in a predetermined direction to move the vehicle component (3) relative to the body (4), and -A drive unit (22), said drive unit (22) being operatively connected to said suspension unit (21) and configured to drive said suspension unit (21) in a predetermined direction under predetermined conditions.
  2. 2. The suspension (20) according to claim 1, wherein, The predetermined condition includes a crash event including a crash and an impending crash, and/or The predetermined direction is a vertical direction (Z) of the vehicle (1).
  3. 3. Suspension device (20) according to claim 1 or 2, wherein, The vehicle component (3) comprises a powertrain component (31), such as an engine or an electric motor, the powertrain component (31) being arranged in a front region and/or a rear region of the vehicle (1), and/or The vehicle component (3) comprises a power battery (32), the power battery (32) being arranged in a bottom region of the vehicle (1).
  4. 4. A suspension arrangement (20) according to one of claims 1 to 3, wherein the drive unit (22) is configured as a hydraulic drive unit comprising a hydraulic reservoir (221) and a hydraulic pump (222), a pump inlet (2221) of the hydraulic pump (222) being in fluid connection with a reservoir outlet (2212) of the hydraulic reservoir (221), a pump outlet (2222) of the hydraulic pump (222) being in fluid connection with the suspension unit (21) via a first valve unit (23), a reservoir inlet (2211) of the hydraulic reservoir (221) being in fluid connection with the suspension unit (21) via a second valve unit (24).
  5. 5. The suspension arrangement (20) according to claim 4, wherein the suspension unit (21) is configured as a hydraulic suspension unit (21), the hydraulic suspension unit (21) comprising a housing (211), a movement element (212) being arranged movably in a predetermined direction in the housing (211), wherein the housing (211) is fixedly connected with the vehicle body (4), a first end (2121) of the movement element (212) is fixedly connected with the vehicle component (3), a second end (2122) of the movement element (212) delimits a hydraulic space (213) with the housing (211), the pump outlet (2222) is fluidly connected with the hydraulic space (213) via the first valve unit (23), and the container inlet (2211) is fluidly connected with the hydraulic space (213) via the second valve unit (24).
  6. 6. The suspension (20) according to claim 4 or 5, wherein the first valve unit (23) and/or the second valve unit (24) are configured as solenoid valves.
  7. 7. A suspension arrangement (20) according to one of claims 1 to 3, wherein the drive unit (22) is configured as an electric drive unit which is mechanically connected to the suspension unit (21) and is configured to drive the suspension unit (21) in motion upon energization.
  8. 8. The suspension (20) according to claim 7, wherein, The drive unit (22) is of integral or one-piece construction with the suspension unit (21), and/or The suspension (20) is configured as an electromagnetic suspension (20).
  9. 9. Suspension arrangement (20) according to one of claims 1 to 8, wherein the suspension arrangement (20) comprises a plurality of suspension units (21), the plurality of suspension units (21) being arranged spaced apart from each other between the vehicle body (4) and the vehicle component (3), wherein the plurality of suspension units (21) are operatively connected with a single drive unit (22) or the plurality of suspension units (21) are operatively connected with respective corresponding drive units (22).
  10. 10. A collision protection system (2) for a vehicle (1), wherein the collision protection system (2) comprises: Suspension (20) according to one of claims 1 to 9; A collision sensor (30), the collision sensor (30) being configured to be adapted to detect a collision signal of the vehicle (1), and -A control device (40), the control device (40) being in data connection with the suspension device (20) and the collision sensor (30) and being configured to be adapted to generate a control signal for controlling the suspension device (20) based on a collision signal of the collision sensor (30).
  11. 11. The crash protection system (2) of claim 10, wherein the crash protection system (2) further comprises: A camera (50), which camera (50) is in data connection with the control device (40) and is configured to be suitable for identifying a collision object (6) located in the surroundings of the vehicle (1) and generating an identification signal, and/or A presentation device (60), which presentation device (60) is connected to the control device (40) in a data manner and is configured to output a presentation signal to a driver of the vehicle (1) in the event of detection of a collision object (6) with respect to a movement of the vehicle component (3) relative to a body (4) of the vehicle (1), and/or -An activation key (70), the activation key (70) being in data connection with the control device (40) and being configured to receive an activation instruction of a user and to transmit the activation instruction to the control device (40).
  12. 12. A vehicle (1), the vehicle (1) comprising a suspension arrangement (20) according to one of claims 1 to 9 or comprising a collision protection system (2) according to claim 10 or 11.
  13. 13. A method (100) for crash protection of a vehicle (1), wherein the method (100) is implemented by a crash protection system (2) according to claim 10 or 11 and comprises the steps of: s110, receiving a collision signal of a collision sensor (30); S120 generating a control signal for controlling the suspension (20) based on the collision signal; s130 controls the suspension device (20) to move in a predetermined direction based on the control signal to move the vehicle component (3) relative to the body (4) of the vehicle (1).
  14. 14. The method (100) according to claim 13, wherein in step S110 an identification signal of a collision object (6) in the surroundings of the vehicle (1) by a camera (50) of the vehicle (1) is additionally received, and in step S120 a control signal for controlling the suspension device (20) is additionally generated based on the identification signal.
  15. 15. The method (100) of claim 14, wherein, The vehicle component (3) is a powertrain component (31) of the vehicle (1), the powertrain component (31) being arranged in a front region of the vehicle (1), the suspension device (20) being controlled on the basis of the control signal to move the powertrain component (31) downward in a vertical direction relative to the vehicle body (4) in order to increase the free space above the powertrain component (31), if the identification signal indicates that the collision object (6) is a living being, or The vehicle component (3) is a powertrain component (31) and/or a power battery (32) of the vehicle (1), the powertrain component (31) being arranged in a front region of the vehicle (1), the power battery (32) being arranged in a bottom region of the vehicle (1), if the identification signal indicates that the collision object (6) is an obstacle on the ground, the respective suspension device (20) being controlled on the basis of the control signal such that the powertrain component (31) and/or the power battery (32) is moved upwards in a vertical direction relative to the vehicle body (4), thereby increasing the empty space under the powertrain component (31) and/or the power battery (32).
  16. 16. The method (100) according to claim 14 or 15, wherein, in parallel to step S120 or after step S120, in step S121, a reminder signal for moving the vehicle component (3) relative to the body (4) of the vehicle (1) is output based on the identification signal.
  17. 17. 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 one of claims 13 to 16.

Description

Suspension device for a vehicle, collision protection system for a vehicle, method for collision protection of a vehicle and computer program product Technical Field The present invention relates to the field of vehicles, and in particular to a suspension device for a vehicle. The invention further relates to a collision protection system for a vehicle, a method for collision protection of a vehicle and a computer program product. Background As vehicles become popular, the demand for vehicles is also increasing. Suspension arrangements are used in existing vehicles. In general, the suspension device is fixedly connected to the body of the vehicle and to vehicle components, for example, powertrain components, and functions to absorb and reduce noise during operation of the vehicle. However, the conventional fixed connection type vehicle suspension device has significant structural limitations, and the fixed connection manner of the device realizes the basic functions of shock absorption and noise reduction, but simultaneously rigidly limits the installation position of the vehicle component in a fixed section, and cannot actively and adaptively adjust the spatial position of the vehicle component according to the actual situation of the vehicle, such as during collision. This can cause injury to pedestrians and damage to vehicle components, especially in the event of collisions with pedestrians and in the event of a risk of a vehicle backing. 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 disadvantages of the prior art solutions, but also enables a corresponding control of the suspension based on the collision object, thereby protecting the collision object and protecting the vehicle components from injury and damage by collision. According to a first aspect of the present invention, there is provided a suspension device for a vehicle, wherein the suspension device includes: A suspension unit connected between a body of the vehicle and a vehicle component and configured to be adapted to move in a predetermined direction to move the vehicle component relative to the body, and A drive unit operatively connected to the suspension unit and configured to drive the suspension unit in a predetermined direction under predetermined conditions. The basic idea of the invention is to actively adjust the position, in particular the vertical position, of the suspension device relative to the vehicle body by means of the suspension device or the crash protection system according to the invention in the event of a crash of the vehicle, so that, for example, when a pedestrian is likely to collide with the front of the vehicle or just with the front of the vehicle, a greater flexible energy absorption space is provided above the vehicle component by lowering the front vehicle component or, for example, when a ground obstacle is likely to collide with the vehicle chassis or just with the vehicle chassis, a greater space is provided below the vehicle component by lifting the vehicle component, in order to avoid a scratch or collision of the vehicle component with the obstacle. Thus, pedestrian safety at the time of a vehicle collision is improved, and important vehicle components of the vehicle are protected from the collision. Advantageous configurations of the solution according to the invention can be obtained from the following alternative embodiments. An alternative embodiment of the suspension device according to the invention provides that the predetermined condition comprises a crash event, the crash event comprising a crash and an impending crash. An alternative embodiment of the suspension device according to the invention provides that the predetermined direction is a vertical direction of the vehicle. An alternative embodiment of the suspension arrangement according to the invention provides that the vehicle component comprises a powertrain component, such as an engine or an electric motor, which is arranged in a front region and/or a rear region of the vehicle. An alternative embodiment of the suspension device according to the invention provides that the vehicle component comprises a power battery, which is arranged in the floor area of the vehicle. According to an alternative embodiment of the suspension device according to the invention, the drive unit is configured as a hydraulic drive unit comprising a hydraulic reservoir and a hydraulic pump, the pump inlet of which is fluidly connected to the reservoir outlet of the hydraulic reservoir, the pump outlet of which is fluidly connected to the suspension unit via a first valve unit, the reservoir inlet of which is fluidly connected to the suspension unit via a second valve unit. According to an alternative embodiment of the suspension device according to the invention, the suspen