Contact recognition system for activating safety device in vehicle

Abstract

The invention relates to a contact detection system for activating a vehicle safety device in a vehicle, comprising a contact sensor device for detecting a deformation of a region of the vehicle shell due to a collision of the vehicle. The contact sensor device is designed as a rotational angle sensor device and has a rotatably mounted lever arm and an angle sensor fastened to a support of the vehicle for detecting a rotational angle or a change in the rotational angle of the lever arm relative to the angle sensor, a first longitudinal end of the lever arm is supported on the inside of the region of the vehicle housing, and a second longitudinal end of the lever arm is mounted on the angle sensor so as to be rotatable about an axis of rotation, such that the lever arm can be rotated about the axis of rotation from a mounting position to a collision position in the event of a collision-induced deformation, a resulting change in the rotational angle between the lever arm and the angle sensor can be detected, on the basis of which change the presence of a collision can be detected. The invention also relates to a vehicle having such a contact detection system.

Description

Technical Field

[0001] The invention relates to a contact recognition system for activating a vehicle safety device in a vehicle, the contact recognition system comprising a contact sensor device for detecting deformation of a region of a vehicle shell after a vehicle collision. In addition, the invention also relates to a vehicle having such a contact recognition system. Background Art

[0002] The use of contact recognition systems in vehicles for activating safety devices of the vehicle has been known for many years, wherein the safety devices are usually designed as protection devices or warning devices of the vehicle. In addition to an electronic control unit, such contact recognition systems usually include a contact sensor device for detecting deformations in areas of the vehicle shell after a collision. The contact sensor devices used here use different measuring principles. For example, contact sensor devices are known in the vehicle sector that measure acceleration, use electrical conductors or pressure sensors or use so-called hose sensors, wherein usually two pressure sensors are arranged at both ends of an elastic hose. In this case, the contact sensor device is usually arranged in an external area, such as the front area or the side area of ​​the vehicle, in particular for detecting a frontal collision or a side collision, and usually sends a signal to the electronic control unit when a collision is detected, for the purpose of classifying the collision, in particular for the type and / or severity of the collision, and for controlling or triggering the corresponding safety device.

[0003] Disadvantages of the known contact sensor arrangements are, inter alia, that they are not particularly flexible with regard to different installation spaces or that collision detection is not sufficiently reliable. Summary of the invention

[0004] Therefore, the object of the present invention is to provide a contact recognition system for activating a safety device of the vehicle in a vehicle and a corresponding vehicle with such a contact recognition system, wherein the contact sensor device of the contact recognition system has a simple structure and can ensure highly reliable detection of collisions, in particular detection of collisions with low collision energy, and has the greatest possible variability in different installation spaces and / or installation positions.

[0005] This object is achieved by the entire teaching of claim 1 and of independent claim 10. Advantageous embodiments and developments of the invention are described in the dependent claims and in the following description.

[0006] The contact recognition system for activating the safety device of the vehicle in the vehicle according to the present invention has a contact sensor device for detecting deformation of a region of the vehicle shell after the vehicle is subjected to a collision, wherein the contact sensor device is designed as a rotation angle sensor device and has a lever arm that can be mounted rotatably and an angle sensor fixed to a support of the vehicle for detecting a rotation angle or a rotation angle change of the lever arm relative to the angle sensor, that is, a rotation angle or a rotation angle change between the lever arm and the angle sensor. Here, the first longitudinal end of the lever arm is supported on the inner side of the region of the vehicle shell, and the second longitudinal end of the lever arm is mounted on the angle sensor rotatably around a rotation axis, so that when a deformation caused by a collision occurs, the lever arm can be rotated around the rotation axis from the mounting position to the collision position, and the resulting change in the rotation angle between the lever arm and the angle sensor can be detected, wherein whether a collision occurs can be identified based on the change in the rotation angle.

[0007] The basic consideration of the invention is that the structure of the contact sensor device can be made particularly simple if the contact sensor device is designed to consist of as few components as possible and the relevant components are designed as simply as possible and can be easily assembled. In addition, the basic consideration of the invention also includes that the rotation angle or the change in the rotation angle is detected by a detection element, in particular a detection element arranged at an angle relative to the collision direction, and the deformation caused by the collision is directly or indirectly transmitted to the detection element, thereby enabling collision detection with particularly high sensitivity and detection accuracy. Therefore, the basic consideration of the invention is based in particular on: the contact sensor device is arranged as a rotation angle sensor device, and at the same time, the first longitudinal end of the rotatably mounted lever arm is arranged to directly or at least indirectly contact the area of ​​the vehicle shell, and the rotation angle of the lever arm caused by the deformation of the area of ​​the vehicle shell caused by the collision or the change in the rotation angle of the lever arm caused by the deformation of the area of ​​the vehicle shell caused by the collision is detected, and the presence of a collision is detected based on this.

[0008] The advantage of the design scheme according to the present invention is that a contact recognition system for activating safety equipment in a vehicle is provided, wherein the contact sensor device of the contact recognition system has a simple structure and can very reliably detect collisions, especially collisions with low collision energy, and has the highest possible variability for different installation spaces and / or installation positions.

[0009] In the context of the present invention, a collision is particularly understood to mean a contact between a vehicle, preferably a vehicle shell, and a collision object outside the vehicle, which results in a plastic or elastic deformation of a region of the vehicle shell. A collision is particularly understood to mean a contact or collision, such as a so-called parking collision, which does not or should not result in the triggering of occupant protection or occupant restraint devices due to a low collision speed or a low collision force. In this case, the collision object may be another vehicle outside the vehicle in question, a person outside the vehicle, such as a pedestrian, or a road boundary.

[0010] The safety device that is ultimately controlled or triggered because the contact recognition system detects that the area of ​​the vehicle shell is deformed due to the collision is preferably designed as a protective device and / or alarm device of the vehicle. The protective device preferably includes an occupant protection device, especially an occupant restraint device and a pedestrian protection device. The occupant restraint device can protect the occupants in the vehicle when a collision occurs, especially when the vehicle collides violently or violently with the collision object, in order to prevent the occupants in the vehicle from being injured as much as possible or at least reduce the severity of the injuries to the occupants in the vehicle. The device can be set as an airbag or a seat belt device with a seat belt tensioner. The pedestrian protection device protects pedestrians when an accident occurs or collides with the vehicle, in order to prevent the pedestrians from being injured as much as possible or at least reduce the severity of the injuries to the pedestrians. The pedestrian protection device can be set as a hood airbag or an hood that can be actively deployed / erected. The alarm device preferably includes vehicle devices such as a speaker, a display screen and / or a warning light or a prompt light, which is used to send an audio and / or visual warning or prompt signal to the vehicle driver.

[0011] The mount is preferably designed as a vehicle component of a vehicle or a section of a vehicle component of a vehicle, which does not have any particular requirements with regard to rigidity or hardness, that is, it does not have to have a very high rigidity or hardness. However, the mount is preferably designed as a rigid mount, for example as a rigid vehicle component of a vehicle or a rigid section of a vehicle component of a vehicle, and therefore has in particular a high rigidity and / or hardness. The mount is preferably designed as a body component of a vehicle or a section of a body component of a vehicle.

[0012] The contact sensor device preferably operates on the magnetic principle, wherein the angle sensor preferably comprises a Hall sensor and the lever arm preferably comprises a magnet, in particular a permanent magnet. The first longitudinal end of the lever arm is supported directly or indirectly on the inner side of the area of ​​the vehicle shell, i.e., toward the outside of the vehicle and directly or indirectly on the inner side of the area of ​​the vehicle shell. The second longitudinal end of the lever arm is directly or indirectly fastened to the angle sensor in a rotatable manner.

[0013] In the event of a collision and the resulting deformation of the corresponding area of ​​the vehicle shell, the lever arm rotates or rotates about the rotation axis, and the rotation angle corresponds to the deformation or degree of deformation, wherein the first longitudinal end of the lever arm is in sliding contact with the inner side of the area of ​​the vehicle shell, i.e., it can be slidably guided on the inner side. The change in the relative position or rotation angle between the lever arm and the angle sensor caused by the rotation and rotation movement of the lever arm is detected by the angle sensor, and the presence of a collision is detected based on the detected change in the rotation angle. The detectable or detected change in the rotation angle can be a parameter corresponding to the change in the rotation angle. Advantageously, the detectable or detected change in the rotation angle is the changed (absolute) rotation angle itself, the (relative) change in the rotation angle (i.e., Delta) or a parameter derived from the changed rotation angle and / or the change in the rotation angle.

[0014] The installation position is the posture or position of the contact sensor device and in particular the lever arm in a stationary state, i.e. before a collision and thus before the collision causes deformation of an area of ​​the vehicle shell, and the collision position is the posture or position of the contact sensor device and in particular the lever arm after the collision causes deformation of an area of ​​the vehicle shell and thus causes a rotational and pivoting movement of the lever arm.

[0015] In an advantageous embodiment, in the installed position, a predetermined rest angle different from 0° is formed between the lever arm and the angle sensor, wherein the rest angle is preferably formed as an acute angle, wherein the rest angle is preferably selected in the range of 10° to 85°, particularly preferably in the range of 30° to 45°. This makes it possible to achieve a high or suitable sensitivity and detection accuracy of the contact sensor device.

[0016] In a further advantageous embodiment, in the mounted position, the first longitudinal end of the lever arm is elastically preloaded against the inner side of the region of the vehicle shell by a preload force. This ensures that the first longitudinal end of the lever arm is in permanent contact with the inner side of the region of the vehicle shell and thus that, in the event of a crash, the lever arm can react immediately to the deformation caused by the crash. In this case, the corresponding preload is realized in particular by means of a spring, which is preferably arranged in the region of the axis of rotation or in the region of the mounting of the second longitudinal end of the lever arm on the angle sensor, wherein the spring applies a corresponding preload force to the lever arm. In the case of an elastic preload force on the first longitudinal end of the lever arm, the rigidity or hardness of the support is advantageously greater than the preload force, in particular greater than the deformation caused by the preload force.

[0017] In another advantageous embodiment, the magnitude of the preload force depends on a predetermined minimum impact force to be detected. The preload force corresponds in an advantageous manner to the predetermined minimum impact force to be detected. The predetermined minimum impact force to be detected represents the impact force at which the contact sensor device is to detect a collision.

[0018] In another advantageous embodiment, a roller / rolling element is provided at the first longitudinal end of the lever arm, which roller is mounted so as to be rotatable, in particular about a roller rotation axis, wherein the roller is supported on the inner side of the region of the vehicle shell, i.e. directly or indirectly against the inner side of the vehicle shell. In this case, the roller in particular forms a guide element of the lever arm. When the region of the vehicle shell is deformed due to a collision, the roller thus rolls on or along the inner side of the region. The roller can be designed as a roller. This design provides the contact sensor device with a high or suitable sensitivity and detection accuracy.

[0019] In a further advantageous embodiment, the lever arm is designed in one piece.

[0020] In another advantageous alternative embodiment, the lever arm has a first lever arm element and a second lever arm element, wherein the first longitudinal end of the first lever arm element is supported on the inner side of the area of ​​the vehicle shell, and the second longitudinal end of the second lever arm element is mounted on the angle sensor so as to be rotatable about the rotation axis, wherein the second longitudinal end of the first lever arm element is connected to the first longitudinal end of the second lever arm element in an articulated manner, wherein in the installed position, the first lever arm element and the second lever arm element are arranged relative to each other at a predetermined lever angle different from 0°, wherein the lever angle is preferably formed as an obtuse angle, wherein the lever angle is preferably selected in the range of 100° to 175°, particularly preferably in the range of 120° to 150°. Thus, the first longitudinal end of the first lever arm element is supported directly or indirectly on the inner side of the area of ​​the vehicle shell, thus facing the vehicle outer side and directly or indirectly on the inner side of the area of ​​the vehicle shell. The second longitudinal end of the second lever arm element is directly or indirectly fastened to the angle sensor in a rotatable manner. In this way, it can be ensured that the contact sensor device has a particularly high or suitable sensitivity and detection accuracy.

[0021] In another advantageous embodiment, in the installed position, a predetermined rest angle different from 0° is formed between the second lever arm element and the angle sensor, wherein the rest angle is preferably formed as an acute angle, wherein the rest angle is preferably selected within the range of 10° to 85°, particularly preferably within the range of 30° to 45°.

[0022] In another advantageous embodiment, the contact sensor device is arranged in the front region and / or the rear region and / or the side region and / or the bottom region of the vehicle, wherein when arranged in the front region and / or the rear region and / or the bottom region, a plurality of contact sensor devices are preferably arranged dispersedly in the vehicle transverse direction. Here, a plurality of contact sensor devices can be arranged in the vehicle transverse direction in the front region, and furthermore, a plurality of contact sensor devices can also be arranged in the vehicle transverse direction in the rear region, and furthermore, a plurality of contact sensor devices can also be arranged in the vehicle transverse direction in the bottom region. As an alternative, a plurality of contact sensor devices can also be arranged in the vehicle transverse direction only in the front region, only in the rear region or only in the bottom region. In the case of being arranged in the front region and / or the rear region, the contact sensor device can be arranged in a beneficial manner in the front bumper or the rear bumper, wherein the first longitudinal end is preferably supported on the inner side of the region of the bumper skin, the support preferably being designed as a vehicle cross beam or a section of a vehicle cross beam. In the case of being arranged in the side region, the contact sensor device can be arranged in a beneficial manner in the side door, wherein the first longitudinal end is preferably supported on the inner side of the region of the side door skin. In the case of an arrangement in the floor area, the contact sensor device can advantageously be arranged in a battery tray or an underbody protection element, wherein the first longitudinal end is preferably supported on the inner side of the area of ​​the vehicle lower shell, in particular on the inner side of the area of ​​the underbody protection element.

[0023] The invention furthermore comprises a vehicle having a contact recognition system according to the invention for activating a vehicle safety device.

[0024] The advantages and various preferred embodiments described for the contact recognition system according to the invention also apply accordingly to the vehicle according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The embodiments of the present invention are explained in detail below with reference to the accompanying drawings.

[0026] Figure 1a A cross-sectional view showing a detail of a vehicle with a contact recognition system in an installed position,

[0027] Figure 1b Shows the basis with the collision position Figure 1a A cross-sectional view of a portion of a vehicle of a contact recognition system,

[0028] Figure 2a shows a cross-sectional view of a detail of a vehicle with a contact recognition system according to an alternative embodiment in an installed position,

[0029] Figure 2b Shows the basis with the collision position Figure 2aA cross-sectional view of a portion of a vehicle of a contact recognition system,

[0030] Figure 3a A cross-sectional view showing a detail of a vehicle with a contact recognition system according to another alternative embodiment in an installed position, and

[0031] Figure 3b Shown with the basis in the collision position Figure 3a Cross-sectional view of a part of a vehicle with a contact recognition system. DETAILED DESCRIPTION

[0032] Parts that correspond to one another are provided with the same reference numerals in all the figures.

[0033] Figure 1a A cross-sectional view of a portion of a vehicle 1 is shown with a contact recognition system 2 for activating a safety device (not shown) of the vehicle 1, the contact recognition system being in an installed position, i.e., in a stationary state before a collision and thus before a deformation of a region of a vehicle shell 3 of the vehicle 1. The safety device comprises, for example, a front airbag for the driver of the vehicle. The contact recognition system 2 comprises, for example, an electronic control device (not shown), which is configured as an airbag control device, and a contact sensor device 4, which is connected to the electronic control device and is configured as a rotation angle sensor device, and which is configured to detect a deformation of a region of the vehicle shell 3 caused by a collision of the vehicle 1.

[0034] Here, the contact sensor device 4 is arranged in the front area of ​​the vehicle 1 and has a rotatably mounted lever arm 5 and an angle sensor 7 fastened to a rigid mount 6 of the vehicle 1 for detecting a rotation angle or a change in the rotation angle of the lever arm 5 relative to the angle sensor 7, wherein the mount 6 is, for example, a section of a body part of the vehicle 1. The contact sensor device 4 operates, for example, according to the magnetic principle, wherein the angle sensor 7 comprises a Hall sensor and the lever arm 5 comprises a permanent magnet.

[0035] The first longitudinal end 5a of the lever arm 5 is supported directly on the inner side of the region of the vehicle shell 3, which is configured as a bumper shell, for example, and thus faces the outside of the vehicle and is supported directly on the inner side of the region of the vehicle shell 3 and is also elastically preloaded by the preload force of a spring (not shown) on the inner side of the region of the vehicle shell 3. The second longitudinal end 5b of the lever arm 5 is fastened to the angle sensor 7 in a rotatable manner about a rotation axis 8. In the illustrated installation position, there is a rotation angle α of, for example, 30°, which is designed as a rest angle, between the lever arm 5 and the angle sensor 7.

[0036] Figure 1b The vehicle body is shown in the crash position (ie after the area of ​​the vehicle shell 3 has been impacted and deformed thereby) according to Figure 1aFIG. 2 is a cross-sectional view of a portion of a vehicle with a contact recognition system 2 , wherein the direction of the collision force is indicated by F and the position of the corresponding components or their pre-collision position, ie, in the installed position, is indicated by a dotted line.

[0037] The collision in the front region of the vehicle 1 leads to a deformation of the corresponding region of the vehicle shell 3, which is indicated by a solid line compared to the initial position of the region of the vehicle shell 3 indicated by a dashed line. As a result of this deformation, the lever arm 5 undergoes a rotational or swiveling movement from the installation position to the collision position, the angle of which corresponds to the deformation or the degree of deformation, for example a rotation of 15° about the axis of rotation 8, which is again indicated by a solid line of the lever arm 5 compared to the initial position of the lever arm 5 indicated by a dashed line. The rotational or swiveling movement of the lever arm 5 leads to a change in the relative position or the swiveling angle α between the lever arm 5 and the angle sensor 7 to, for example, 45°, which can be detected by the angle sensor 7 and a collision can be detected based on the detected change in the swiveling angle α. For this purpose, for example, the change in the swiveling angle α is compared with a predetermined threshold value, wherein a collision can only be detected if the change in the swiveling angle α exceeds the predetermined threshold value.

[0038] Through this design of the contact sensor device 4 and the contact recognition system 2, a simply constructed contact recognition system 2 or a simply constructed contact sensor device 4 is provided, which can very reliably detect collisions, especially collisions with low collision energy, and can achieve the highest possible variability in different installation spaces and / or installation positions.

[0039] Figure 2a and Figure 2b The cross-sectional view shows a detail of a vehicle 1 with a contact recognition system 2 according to an alternative embodiment, wherein: Figure 2a Shows the installation location, Figure 2b The vehicle 1 and the contact recognition system 2 are basically the same as Figure 1a and Figure 1b The vehicle 1 and the contact recognition system 2 shown in the figure correspond to each other, wherein a roller 10 is provided at the first longitudinal end 5a of the lever arm 5 of the contact sensor device 4 and is rotatably mounted about the roller rotation axis 9. The roller 10 is supported on the inner side of the region of the vehicle shell 3 and is located directly on the inner side of the region of the vehicle shell 3. The roller 10 forms a guide element for the lever arm 5. Figure 2a In the illustrated installation position, there is a rotation angle α of, for example, 30° between the lever arm 5 and the angle sensor 7, which is designed as a static angle. If an area of ​​the vehicle shell 3 is deformed due to a collision, the roller 10 will roll on or along the inside of this area. Figure 2bIn the collision position shown, there is a rotation angle α of, for example, 45° between the lever arm 5 and the angle sensor 7. Based on the detected change in the rotation angle α, it is possible to detect whether there is a collision. This design further enables the contact sensor device 4 to have a high or appropriate sensitivity and detection accuracy.

[0040] Figure 3a and Figure 3b The cross-sectional view shows a section of a vehicle 1 with a contact recognition system 2 according to another alternative embodiment, wherein: Figure 3a Shows the installation location, Figure 3b The vehicle 1 and the contact recognition system 2 are basically the same as Figure 1a and Figure 1b The vehicle 1 shown corresponds to the contact recognition system 2 , wherein the lever arm 5 has a first lever arm element 11 and a second lever arm element 12 .

[0041] Here, the first longitudinal end 5a of the first lever arm element 11 is indirectly supported on the inner side of the region of the vehicle shell 3. For this purpose, the first longitudinal end 5a is fastened to a rigid fastening element 14 mounted on the inner side of the region of the vehicle shell 3 in a manner that allows rotation about a fastening axis 13. The second longitudinal end 5b of the second lever arm element 12 is mounted on the angle sensor 7 in a manner that allows rotation about an axis of rotation 8, wherein the second longitudinal end 15 of the first lever arm element 11 is connected to the first longitudinal end 16 of the second lever arm element 12 in an articulated manner, wherein at Figure 3a In the illustrated installation position, the first lever arm element 11 and the second lever arm element 12 are arranged at a lever angle of 135° relative to each other. Figure 3a In the illustrated installation position, there is a rotation angle α of, for example, 35° between the lever arm 5 or, more precisely, the second lever arm element 12 and the angle sensor 7, which is designed as a rest angle. Figure 3b In the collision position shown, due to the rotation and swivel movement of the lever arm 5 caused by the collision, i.e. the rotation and swivel movement of the first lever arm element 11 and the second lever arm element 12, there is a swivel angle α of, for example, 50° between the lever arm 5, more precisely the second lever arm element 12 and the angle sensor 7. From the change in the detected swivel angle α, it can be inferred whether there has been a collision. This design can ensure that the contact sensor device has a particularly high or suitable sensitivity and detection accuracy.

Claims

1. A contact recognition system (2) for activating a safety device of a vehicle (1) in a vehicle (1), the contact recognition system having a contact sensor device (4) for detecting deformation of an area of ​​a vehicle outer shell (3) caused by a collision of the vehicle (1), wherein: The contact sensor device (4) is designed as a rotation angle sensor device and has a lever arm (5) that is rotatably mounted and an angle sensor (7) fixed on a support (6) of the vehicle (1), the angle sensor being used to detect a rotation angle (α) or a change in the rotation angle (α) of the lever arm (5) relative to the angle sensor (7), wherein a first longitudinal end (5a) of the lever arm (5) is supported on the inner side of an area of ​​the vehicle shell (3), and a second longitudinal end (5b) of the lever arm (5) is mounted on the angle sensor (7) in a manner that allows it to rotate about a rotation axis (8), whereby when a deformation caused by a collision occurs, the lever arm (5) can rotate about the rotation axis (8) from an installed position to a collision position, and a change in the rotation angle (α) between the lever arm (5) and the angle sensor (7) caused thereby can be detected, wherein whether a collision has occurred can be identified based on the change in the rotation angle (α).

2. The contact recognition system (2) according to claim 1, wherein: In the installed position, a predetermined rest angle different from 0° is formed between the lever arm (5) and the angle sensor (7), wherein the rest angle is preferably formed as an acute angle, wherein the rest angle is preferably selected in the range of 10° to 85°, particularly preferably in the range of 30° to 45°.

3. The contact recognition system (2) according to claim 1 or 2, wherein: In the installed position, a first longitudinal end (5a) of the lever arm (5) is elastically prestressed by a prestressing force on the inner side of the region of the vehicle outer shell (3).

4. The contact recognition system (2) according to claim 3, wherein: The magnitude of the preload force depends on the predetermined minimum impact force to be detected.

5. A contact recognition system (2) according to any one of the preceding claims, wherein: A roller (10) is arranged at a first longitudinal end (5a) of the lever arm (5), in particular being mounted rotatably about a roller rotation axis (9), wherein the roller (10) is supported on the inside in the region of the vehicle shell (3).

6. A contact recognition system (2) according to any one of the preceding claims, wherein: The lever arm (5) is designed in one piece.

7. The contact identification system (2) according to any one of claims 1 to 5, wherein: The lever arm (5) comprises a first lever arm element (11) and a second lever arm element (12), wherein a first longitudinal end (5a) of the first lever arm element (11) is supported on the inner side of an area of ​​the vehicle shell (3), and a second longitudinal end (5b) of the second lever arm element (12) is mounted on the angle sensor (7) in a manner that allows rotation about a rotation axis (8), wherein the second longitudinal end (15) of the first lever arm element (11) is connected to the first longitudinal end (16) of the second lever arm element (12) in an articulated manner, wherein in the installed position, the first lever arm element (11) and the second lever arm element (12) are arranged relative to each other at a predetermined lever angle different from 0°, wherein the lever angle is preferably formed as an obtuse angle, wherein the lever angle is preferably selected in the range of 100° to 175°, and particularly preferably in the range of 120° to 150°.

8. The contact recognition system (2) according to claim 7, wherein: In the installed position, a predetermined rest angle different from 0° is formed between the second lever arm element (12) and the angle sensor (7), wherein the rest angle is preferably formed as an acute angle, wherein the rest angle is preferably selected in the range of 10° to 85°, particularly preferably in the range of 30° to 45°.

9. A contact recognition system (2) according to any one of the preceding claims, wherein: The contact sensor device (4) is arranged in the front area and / or the rear area and / or the side area and / or the bottom area of ​​the vehicle (1), wherein when arranged in the front area and / or the rear area and / or the bottom area, a plurality of contact sensor devices (4) are preferably arranged in a dispersed manner in the transverse direction of the vehicle.

10. A vehicle (1) with a contact recognition system (2) for activating a safety device of a vehicle (1) according to any of the preceding claims.

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