Subframe for a motor vehicle and arrangement

Abstract

The invention relates to a subframe (14) for a motor vehicle, comprising a first attachment point (26) via which a first wheel guide (20) designed to guide a vehicle wheel (18) of the motor vehicle can be pivotally coupled to the subframe (14), and a second attachment point (28) spaced apart from the first attachment point (26), via which a second wheel guide (22) designed separately from the first wheel guide (20) and designed to guide the vehicle wheel (18) can be pivotally coupled to the subframe (14), wherein the subframe (14) has at least one deformation area (40) arranged between the attachment points (26, 28) and deformable in the event of an accident impact on the subframe (14), by the deformation of which the first attachment point (26) can be moved from its initial position (42) into a safety position (44).in which the first connection point (27) is arranged closer to the second connection point (28) than in the initial position.

Claims

[1] Subframe (14) for a motor vehicle, comprising a first connection point (26), via which a first wheel guide (20) designed to guide a vehicle wheel (18) of the motor vehicle can be coupled in an articulated manner to the subframe (14), comprising a second connection point (28) spaced apart from the first connection point (26), via which a second wheel guide (22) designed separately from the first wheel guide (20) and designed to guide the vehicle wheel (18) can be coupled in an articulated manner to the subframe (14), wherein the subframe (14) has at least one deformation region (40) arranged between the connection points (26, 28) and deformable in the event of an accident-related impact on the subframe (14), by the deformation of which the first connection point (26) can be displaced from its initial position (42) into a safety position (44), in which the first connection point (27) is arranged closer to the second connection point (28) than in the starting position,characterized by that the first connection point (26) is provided on a first component (62) and the second connection point (28) is provided on a second component (64) formed separately from the first component (62), wherein the second component (64) has the deformation region (40). [2] Subframe (14) according to claim 1 characterized by that by moving the first connection point (26) into the safety position (44), the vehicle wheel (18) to be held on the subframe (14) via the wheel guides (20, 22) with the mediation of the connection points (26, 28) can be pivoted relative to the subframe (14) in a pivoting movement (48), in which a rear end (50) of the vehicle wheel (18) in the vehicle longitudinal direction (24) is to be moved outwards in the vehicle transverse direction (16) of the motor vehicle. [3] Subframe (14) according to claim 2, characterized bythat as a result of the pivoting movement (46) when the vehicle wheel (18) encounters an accident-related obstacle (46), the vehicle wheel (18) can be supported rearwardly in the vehicle longitudinal direction (24) on a side sill (54) of the motor vehicle. [4] Subframe (14) according to one of the preceding claims, characterized by at least one loading area (66) via which the auxiliary frame (14) can be loaded with an accident-related obstacle (46) in order to deform the deformation area (40). [5] Subframe (14) according to claim 4, characterized by that the first component (62) has the loading area (66). [6] Subframe (14) according to claim 4 or 5, characterized by that the loading area (66) extends further outwards in the vehicle transverse direction (16) than the connection points (26, 28). [7] Arrangement (10) of a wheel suspension (12) on a subframe (14) for a motor vehicle, in which the wheel suspension (12) has at least one first wheel guide (20) designed to guide a vehicle wheel (18) of the motor vehicle, which is articulated to the subframe (14) via a first connection point (26), and at least one second wheel guide (22) designed separately from the first wheel guide (20) and designed to guide the vehicle wheel (18), which is articulated to the subframe (14) via a second connection point (28) spaced apart from the first connection point (26), wherein the subframe (14) has at least one deformation region (40) arranged between the connection points (26, 28) and deformable in the event of an accident-related impact on the subframe (14), by the deformation of which the first Connection point (26) can be moved from its initial position (42) into a safety position (44),in which the first connection area (26) is arranged closer to the second connection area (28) than in the starting position (42), , characterized by in that the first connection point (26) is provided on a first component (62) and the second connection point (28) is provided on a second component (64) formed separately from the first component (62), wherein the second component (64) has the deformation region (40). [8] Arrangement (10) according to claim 7, characterized bythat the respective wheel guide (20, 22) has a respective fastening point (30, 32) via which the respective wheel guide (20, 22) can be coupled to a wheel carrier (34), the auxiliary frame (14) has at least one loading area (66) via which the auxiliary frame (14) can be loaded with an accident-related obstacle (46) in order to deform the deformation area (66), and the loading area (66) extends further outwards in the vehicle transverse direction (16) than the connection points (26, 28), wherein • a distance (68) extending in the vehicle transverse direction (16) between the first connection point (26) and an outermost extension (70) of the loading area (66) in the vehicle transverse direction (16) is at least 25 percent, in particular at least 50 percent, of a distance (72) extending in the vehicle transverse direction (16) between the first connection point (26) and the fastening point (30) of the first wheel guide (20) and / or • a distance (74) extending in the vehicle transverse direction (16) between the second connection point (28) and the outermost extent (70) of the loading area (66) in the vehicle transverse direction (16) is at least 25 percent, in particular at least 50 percent, of a distance (76) extending in the vehicle transverse direction (16) between the second connection point (28) and the fastening point (32) of the second wheel guide (22).

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