Chassis axle and vehicle

The chassis axis design simplifies vehicle production by integrating electric motor storage on a cross-leaf spring with minimal components, reducing vehicle weight and production costs while ensuring stable motor support and vibration insulation.

DE102017205358B4Active Publication Date: 2025-01-30DEUTSCHES ZENTRUM FÜR LUFT UND RAUMFAHRT E V
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Patent Information

Application Number
DE102017205358
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2017-03-29
Publication Date
2025-01-30
Estimated Expiration
2037-03-29

AI Technical Summary

Technical Problem

Existing chassis designs for vehicles are complex and result in high vehicle mass, making them inefficient and costly to produce.

Method used

A chassis axis design that integrates storage elements for electric motors on a cross-leaf spring, allowing easy connection to the vehicle's load-bearing structure using a minimal number of components, including a central section and end sections with triangular formations, and elastic compliant elements for motor support.

Benefits of technology

Enables a simple, lightweight, and cost-effective production of vehicles by reducing the number of components and minimizing material contact issues while providing stable motor support and vibration insulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

Chassis axle (100) for a vehicle (104), in particular a motor vehicle, wherein the chassis axle (100) comprises the following: - a transverse leaf spring (108) which extends between two wheels (106) of the chassis axle (100) and serves for the spring mounting of the wheels (106) on a supporting structure of the vehicle (104); - two electric motors (126) to drive the wheels (106), wherein the chassis axle (100) comprises a bearing device (140) which includes several bearing elements (142) for mounting the electric motors (126) on the transverse leaf spring (108) and simultaneously for mounting the transverse leaf spring (108) on the supporting structure of the vehicle (104), characterized by the fact that a housing (128) of each electric motor (126) is arranged on the transverse leaf spring (108) by means of the several bearing elements (142) of the bearing device and wherein the bearing elements (142) of the bearing device (140) have a fastening section by means of which the respective bearing element (142) is fixed in the assembled state indirectly or directly to the supporting structure of the vehicle (104).
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Description

[0001] The present invention relates to a chassis axle for a vehicle, in particular a motor vehicle, and to a vehicle, in particular a motor vehicle.

[0002] Chassis axles with features of the preamble of claim 1 are known, for example, from DE 10 2013 211 538 A1, WO 2015 / 090750 A1 and DE 10 2014 102 541 A1.

[0003] The present invention is based on the object of providing a chassis axle which is of simple construction and enables the production of a vehicle with a low vehicle mass.

[0004] This object is achieved according to the invention by a chassis axle having the features of claim 1 and by a vehicle having the features of claim 15.

[0005] Because the chassis axle according to the invention comprises several bearing elements for mounting the electric motors on the transverse leaf spring and, at the same time, for mounting the transverse leaf spring on the supporting structure of the vehicle, the electric motors, the transverse leaf spring and thus also all other components of the chassis axle can be connected to one another and / or to the supporting structure of the vehicle in a simple manner and with a small number of components.

[0006] Each bearing element preferably serves to support one of the electric motors on the transverse leaf spring and, at the same time, to support the transverse leaf spring on the supporting structure of the vehicle.

[0007] Preferably, several such bearing elements of the bearing device are provided, wherein each of these bearing elements establishes and / or enables a bearing connection between the electric motor, the transverse leaf spring and the supporting structure of the vehicle.

[0008] It may be advantageous if the transverse leaf spring comprises a central section which is arranged between two end sections of the transverse leaf spring facing the wheels.

[0009] The central section is preferably formed by two web regions of the transverse leaf spring which are aligned at least approximately parallel to one another and at least approximately perpendicular to a direction of travel.

[0010] A web region of the transverse leaf spring is, in particular, a section of the transverse leaf spring that extends significantly further in a first spatial direction than in the two other spatial directions. For example, a length of the web region corresponds to at least approximately twice, preferably at least approximately four times, a width of the web region. A width of the web region preferably corresponds to at least approximately twice, for example at least approximately four times, a height or thickness of the web region.

[0011] The end sections of the transverse leaf spring are preferably each formed by three web areas forming a triangle.

[0012] The transverse leaf spring thus preferably comprises eight web regions, with two sets of three web regions each being provided to form the end sections and two web regions being provided to form the central section.

[0013] The three web regions of each end section of the transverse leaf spring forming a triangle preferably surround an opening of the respective end section of the transverse leaf spring.

[0014] Preferably, an electric motor extends into this opening.

[0015] In particular, two electric motors are provided, each electric motor extending into an opening formed by the three web regions of each end section forming a triangle.

[0016] Preferably, one or more bearing elements are fixed to two or all three of the web areas forming a triangle of each end section.

[0017] In particular, it can be provided that exactly one bearing element is fixed to each of the web areas of each end section forming a triangle.

[0018] Preferably, no bearing element is fixed and / or arranged on the central section of the transverse leaf spring.

[0019] In particular, it can be provided that the bearing device comprises a total of six bearing elements, with three bearing elements being assigned to each of the two end sections of the transverse leaf spring.

[0020] These three bearing elements assigned to an end section are arranged in particular at the corner points of a triangle, for example an equilateral triangle or an isosceles triangle.

[0021] The transverse leaf spring is preferably formed in one piece.

[0022] In particular, it can be provided that the central section and the end sections are formed by a one-piece plate-shaped base body.

[0023] The transverse leaf spring is formed, for example, from a fiber-reinforced material, in particular from a glass-fiber-reinforced plastic material.

[0024] The transverse leaf spring is preferably arranged completely below or above an axis of rotation of the wheels.

[0025] In one embodiment of the invention, it can be provided that a wheel carrier is fixed at each end of the transverse leaf spring for rotatably and / or steerably receiving a wheel.

[0026] The wheel carrier is arranged in particular directly at the end of the transverse leaf spring, in particular fixed, for example screwed and / or materially bonded, for example by means of an adhesive connection, at the end of the transverse leaf spring.

[0027] The bearing elements of the bearing device preferably each comprise an elastically flexible element for the resilient and / or damped mounting of the respective electric motor.

[0028] By means of the elastically flexible element, the electric motor in particular is mounted in a spring-loaded and / or damped manner relative to the transverse leaf spring.

[0029] The transverse leaf spring, on the other hand, is preferably firmly and immovably connected to the supporting structure of the vehicle.

[0030] However, it can also be provided that the bearing elements each comprise a plurality of flexible elements for the resilient and / or damped mounting of the electric motor and / or the transverse leaf spring.

[0031] It can be advantageous if the bearing elements each have a receiving section for the linearly displaceable mounting of the respective electric motor.

[0032] The receiving section allows, in particular, a movement of the electric motor perpendicular to a plane along which the transverse leaf spring extends.

[0033] The plane along which the transverse leaf spring extends is preferably aligned horizontally during normal operation of the vehicle.

[0034] In particular, the plane is aligned parallel to the direction of travel and / or perpendicular to a vertical longitudinal center axis of the vehicle.

[0035] It can be advantageous if the bearing elements each have an elastic bearing ring.

[0036] By means of such an elastic bearing ring, the respective electric motor is preferably mounted so as to be movable in all spatial directions, in particular in a spring-loaded and / or damped manner.

[0037] A central axis or axis of rotation of the bearing ring is preferably aligned parallel or perpendicular to the plane along which the transverse leaf spring extends.

[0038] It may be advantageous if the bearing elements each comprise a clamping device, for example a clamp, for receiving and / or fixing a web area of ​​the transverse leaf spring.

[0039] A clamping device, in particular a clamp, preferably serves to receive, in particular to encompass, a web area of ​​the transverse leaf spring, whereby in particular a drilling or other impairment of the transverse leaf springs is unnecessary.

[0040] A bearing element can, for example, comprise a clamping device, in particular a clamping collar, by means of which a web region of the transverse leaf spring can be accommodated. A receiving portion of the bearing element preferably protrudes from the clamping device, in particular the clamping collar. The receiving portion is formed, in particular, by a threaded rod.

[0041] For example, by means of a screw nut, a receiving tab which projects away from the housing of the electric motor can then preferably be fixed to the receiving section of the bearing element.

[0042] An elastically flexible element, for example a bearing ring or other element, can be provided as an intermediate piece at any point of the receiving section and / or the receiving tab and / or the clamping device in order to ultimately enable a resilient and / or damped mounting.

[0043] The clamping device, in particular the clamp, preferably comprises a screw device, which in particular comprises several screw elements.

[0044] Two components of the clamping device, in particular the clamp, are preferably connected to one another by means of the screw device, in particular the plurality of screw elements.

[0045] The screw device, in particular the plurality of screw elements, preferably also serve to fix the bearing element and thus the entire chassis axis to the supporting structure of the vehicle, in particular by fixing the screw elements of the screw device in associated screw receptacles, in particular threaded holes, in the supporting structure of the vehicle.

[0046] According to the invention, the bearing elements of the bearing device have a fastening section by means of which the respective bearing element can be fixed directly or indirectly to the supporting structure of the vehicle.

[0047] A fastening section is in particular a flange or projection, which in particular comprises one or more through openings, in particular screw holes.

[0048] A fastening section can, for example, be arranged and / or formed at an upper end region of the respective bearing element with respect to the direction of gravity, so that the bearing element can be mounted in particular from below onto an underside of the supporting structure.

[0049] The fastening section may further comprise a receiving section and / or a threaded rod. For example, a threaded rod is provided for receiving an elastically flexible element for supporting the electric motor. The threaded rod then preferably also serves to secure the bearing element to the supporting structure.

[0050] The present invention further relates to a vehicle, in particular a motor vehicle, which comprises one or more chassis axles, in particular chassis axles according to the invention.

[0051] The transverse leaf spring of a chassis axle is preferably fixed to a subframe or axle carrier or longitudinal member of the supporting structure of the vehicle.

[0052] The vehicle preferably further comprises one or more of the features and / or advantages described in connection with the chassis axle according to the invention.

[0053] The electric motors are primarily wheel hub motors.

[0054] Preferably, an axis of rotation of a rotor of each electric motor is at least approximately simultaneously an axis of rotation of the associated wheel.

[0055] For example, the rotor of the respective electric motor is connected to a wheel hub of the corresponding wheel by means of a shaft, for example a cardan shaft.

[0056] By using the described bearing device, separate vibration isolation of the chassis on the one hand and the electric motor on the other hand can be dispensed with.

[0057] By means of the bearing device, the transverse leaf spring can preferably be received or accommodated in a form-fitting manner.

[0058] Damping inserts, for example made of a rubber material or plastic, are preferably provided for the clamping device, in particular the clamping clamp, of each bearing element. This can preferably influence the spring properties of the transverse leaf spring, for example, to increase rigidity. Furthermore, contact problems between a material of the transverse leaf spring, in particular glass-fiber-reinforced plastic, and the components of the clamping device, in particular the preferably metallic clamping clamp, can preferably be reduced.

[0059] Preferably, all bearing elements are connected to the supporting structure of the vehicle via one, two or more than two fixing points and / or joining points.

[0060] A fixing point and / or joining point can be provided in particular by a screw connection by means of a screw element of a screwing device.

[0061] Further preferred features and / or advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

[0062] The drawings show: Fig. 1 a schematic perspective view of a first embodiment of a chassis axle of a chassis including wheels mounted on the chassis axle; Fig. 2 a schematic side view of the chassis axis from Fig. 1; Fig. 3 a schematic plan view of an upper side of the chassis axle from Fig. 1; Fig. 4 a schematic perspective view of a second embodiment of a chassis axle; Fig. 5 a schematic side view of the chassis axis from Fig. 4; Fig. 6 a schematic plan view of an upper side of the chassis axle from Fig. 4; Fig. 7 a schematic perspective view of a bearing element of a bearing device of the chassis axle from Fig. 4; Fig. 8 a schematic perspective view of another bearing element of the bearing device of the chassis axle from Fig. 4; Fig. 9 a schematic perspective view of a third embodiment of a chassis axle; Fig. 10 a schematic side view of the chassis axis from Fig. 9; Fig. 11 a schematic plan view of an upper side of the chassis axle from Fig. 9; and Fig. 12 a schematic perspective view of a bearing element of a bearing device of the chassis axle from Fig. 9.

[0063] Identical or functionally equivalent elements are provided with the same reference numerals in all figures.

[0064] One in the Fig. The first embodiment of a chassis axle, designated as a whole by 100, shown in Figures 1 to 3 is part of a chassis 102 and is used in particular in vehicles 104.

[0065] The chassis axle 100 serves in particular to connect wheels 106 of the chassis 102 to a supporting structure (not shown) of the vehicle 104.

[0066] The chassis axle 100 comprises a transverse leaf spring 108 which extends in at least approximately a horizontal direction and perpendicular to a direction of travel 110 from one wheel 106 to another wheel 106 opposite with respect to a vertical longitudinal center plane of the vehicle 104.

[0067] The transverse leaf spring 108 is preferably formed in one piece, for example from a glass fiber reinforced plastic material.

[0068] At opposite ends 112 of the transverse leaf spring 108, a wheel carrier 114 is preferably arranged for receiving one of the wheels 106.

[0069] In particular, the wheels 106 are rotatably mounted on the wheel carriers 114.

[0070] For example, a damper 116 can be attached to each of the wheel carriers 114.

[0071] The spring function of the chassis 102 is preferably ensured by the transverse leaf spring 108. The dampers 116 perform a damping function.

[0072] The transverse leaf spring 108 comprises a central section 118 located centrally between the wheels 106 and two end sections 120 facing the ends 112.

[0073] The end sections 120 are preferably triangular in shape and each comprise three web regions 122 of the transverse leaf spring 108.

[0074] The web regions 122 of the triangular end sections 120 each surround an opening 124 of the respective end section 120.

[0075] The central section 118 is preferably formed by two web regions 122 of the transverse leaf spring 108.

[0076] In particular, the two web regions 122 of the central section 118 connect the two end sections 120 to each other.

[0077] The web regions 122 of the central section 118 are arranged essentially parallel to one another and run essentially perpendicular to the direction of travel 110.

[0078] A substantially rectangular opening 124 is formed between the two web regions 122.

[0079] The transverse leaf spring 108 thus comprises two triangular openings 124 and a rectangular opening 124 arranged therebetween.

[0080] The corners of the openings 124 can, for example, be rounded.

[0081] The chassis axle 100 further preferably comprises two electric motors 126.

[0082] Each wheel 106 is assigned one of the electric motors 126.

[0083] The electric motors 126 are preferably arranged on the triangular end sections 120 of the transverse leaf spring 108, in particular such that a housing 128 of a respective electric motor 126 extends into the triangular opening 124 of the triangular end section 120.

[0084] However, it can also be provided that the housings 128 are arranged completely outside the opening 124.

[0085] However, the housings 128 of the electric motors 126 are then preferably arranged in a region above or below the openings 124 of the triangular end sections 120.

[0086] The electric motors 126 are in particular each coupled to the associated wheel 106 via a drive shaft 130, so that the wheels 106 can be set in rotation by means of the electric motors 126.

[0087] The drive shaft 130 is preferably a cardan shaft 134, so that in particular relative movements of the wheel 106 relative to the electric motor 126 can be compensated.

[0088] As in particular Fig. 2, a rotation axis 136 of the wheel 106 is preferably also a rotation axis 136 of the electric motor 126, in particular of a rotating part (not shown) of the electric motor 126. Depending on the driving state of the vehicle 104, however, the wheel 106 and thus also the rotation axis 136 can be moved relative to the electric motor 126 and thus relative to its rotation axis 136.

[0089] To support the electric motors 126 on the transverse leaf spring 128, the chassis axle 100 comprises several motor mounts 138.

[0090] The engine bearings 138 are formed in particular by two bearing devices 140.

[0091] Each bearing device 140 preferably serves to support an electric motor 126 at a respective end portion 120 of the transverse leaf spring 108.

[0092] Each bearing device 140 preferably comprises a plurality of bearing elements 142 by means of which the housing 128 of each electric motor 126 is arranged on the transverse leaf spring 108.

[0093] The bearing elements 142 each comprise a clamping device 144, by means of which the bearing elements 142 can be fixed, in particular clamped, to the web regions 122 of the transverse leaf spring 108.

[0094] The clamping device 144 comprises in particular a clamp 146, by means of which the web regions 122 can be encompassed in a closed ring shape in order to obtain, for example, a positive and thus stable connection between the transverse leaf spring 108 and the bearing element 142.

[0095] The bearing elements 142 further preferably comprise a receiving portion 148, which is formed, for example, by a threaded rod extending vertically upwards from the clamping device 144.

[0096] By means of this receiving section 148, in particular a receiving tab 150 protruding from the housing 128 of the electric motor 126 can be received.

[0097] In order to fix the receiving tab 150 to the receiving section 148, a screw nut can then be screwed onto the receiving section 148 designed as a threaded rod.

[0098] By means of, for example, an elastically flexible hollow cylindrical element 152, the receiving tab 150 is preferably held at a predetermined distance from the clamping device 144. The elastically flexible element 152 also preferably serves to provide a resilient and / or damped mounting of the housing 128 and thus the entire electric motor 126 on the transverse leaf spring 108.

[0099] The bearing elements 142 preferably also serve to support the entire chassis axle 100 on the supporting structure of the vehicle 104 (not shown).

[0100] For this purpose, in particular the clamping devices 144 of the bearing elements 142 are provided with suitable connecting elements for fixing to the supporting structure of the vehicle 104.

[0101] The bearing elements 142 thus form, on the one hand, the motor mounts 138 for supporting the electric motors 126. On the other hand, the bearing elements 142 preferably also form axle bearings 154 for supporting the chassis axle 100 on the supporting structure of the vehicle 104.

[0102] As in particular Fig. 3, the bearing elements 142 are arranged distributed on the transverse leaf spring 108 in such a way that one bearing element 142 is arranged on each of the web regions 122 of the triangular end sections 120.

[0103] The electric motors 126 are thus each fixed to the transverse leaf spring 108 by means of three bearing elements 142.

[0104] The transverse leaf spring 108 is connected to the supporting structure of the vehicle 104 in particular at two, four or six positions.

[0105] The bearing elements 142 can all be designed identically to one another.

[0106] Preferably, however, two different types of bearing elements 142 are provided.

[0107] The two bearing elements 142 facing the central section 118 preferably have a clamping device 144 that is longer than the other bearing elements 142. These bearing elements 142 thus bear against the transverse leaf spring 108 over a longer area. This, on the one hand, strengthens the connection between the transverse leaf spring 108 and the electric motor 126. On the other hand, the extended clamping device 144 can simultaneously stabilize the transverse leaf spring 108 in the surrounding web area 122.

[0108] One in the Fig. The second embodiment of a chassis axle 100 shown in Figures 4 to 8 differs from that shown in Figures Fig. 1 to 3 essentially only by an alternative design of the bearing elements 142.

[0109] As in particular the Fig. 7 and Fig. 8, clamping devices 144 designed as clamps 146 are provided.

[0110] The clamps 146 are in particular essentially formed in two parts, wherein the two parts can be connected to one another by means of one or more screw connections 156.

[0111] In particular, several screw elements 158 are provided, which serve on the one hand to connect the two components of the clamp 146 and on the other hand to fix the bearing element 142 and thus the entire chassis axle 100 to the supporting structure of the vehicle 104.

[0112] As in particular Fig. As can be seen from Figure 7, a clamping section 160 of the clamping device 144 facing the transverse leaf spring 108 can be provided, for example, with one or more inserts, for example made of a rubber material or a plastic. This allows an optimized connection between the bearing element 142 and the transverse leaf spring 108 to be achieved. In particular, material-related impairments of the connection between the transverse leaf spring 108 and the bearing element 142 can be avoided or at least reduced.

[0113] A hollow cylindrical element 162 preferably projects together with a threaded rod 164 from the clamping device 144 of each bearing element 142.

[0114] In particular, the hollow cylindrical element 162 is pushed onto the threaded rod 164.

[0115] The receiving section 148, which is formed by the threaded rod 164, serves in particular to receive a bearing ring 166 (see in particular Fig. 4). The bearing ring 166 forms the Fig. 4 to 8, in particular the elastically flexible element 152 for the resilient and / or damped mounting of the electric motor 126 on the transverse leaf spring 108.

[0116] The receiving tabs 150, which protrude from the housing 128 of the electric motor 126, preferably comprise a suitable receptacle for the bearing ring 166.

[0117] The bearing ring 166 is clamped in particular between a nut 168 screwed onto the threaded rod 164 and the hollow cylindrical element 162 and is thereby fixed to the bearing element 142.

[0118] The bearing ring 166 is in particular firmly fixed in the receiving tab 150.

[0119] Thus, the electric motor 126 is preferably held resiliently and / or damped on the transverse leaf spring 108 via the receiving tab 150, the bearing ring 166, the receiving section 148 and the clamping device 144.

[0120] Alternatively or in addition to the bearing ring 166, the hollow cylindrical element 162 can be designed to be elastically flexible. The hollow cylindrical element 162 can thus also be an elastically flexible element 152.

[0121] As already mentioned regarding the Fig. 1 to 3 are also applicable to the Fig. In the second embodiment shown in Figures 4 to 8, two different variants of bearing elements 142 are provided, which differ from one another by differently dimensioned clamping devices 144.

[0122] As can be seen particularly from a comparison between the Fig. 7 and Fig. 8, it can be provided that the bearing elements 142 facing the central section 118 have, for example, a clamping section 160 whose length corresponds to at least approximately twice the length of the clamping section 160 of the other bearing elements 142.

[0123] Otherwise, the two types of bearing elements 142 are identical in terms of structure and function.

[0124] The Fig. The second embodiment of the chassis axle 100 shown in Figures 4 to 8 corresponds in terms of structure and function to the one shown in Figures Fig. 1 to 3, so that reference is made to the above description thereof in this respect.

[0125] One in the Fig. The third embodiment of a chassis axle 100 shown in Figures 9 to 12 differs from that shown in Figures Fig. 4 to 8 essentially in that the bearing elements 142 have an alternative design of the receiving section 148 in order to be able to receive bearing rings 166 rotated by 90° for supporting the electric motors 126.

[0126] As in particular Fig. 12, the receiving sections 148 of the bearing elements 142 comprise two projections 170 which run parallel to one another and extend essentially vertically upwards from the clamping device 144.

[0127] A screw element 158 ​​extends between the projections 170, which forms the actual receiving section 148 for receiving the bearing ring 166.

[0128] In particular, the screw element 158 ​​can be screwed, for example, to an associated nut 168 and thus secured to the projections 170 after the bearing ring 166 has been inserted between the two projections 170. The bearing ring 166 is thereby fixed to the bearing element 142.

[0129] This also fixes the housing 128 of the electric motor 126, which receives the bearing ring 166 with the receiving tab 150, to the bearing element 142.

[0130] The center axis of the bearing ring 166 and the receiving section 148 is in the Fig. 9 to 12, the chassis axle 100 is thus aligned substantially horizontally. Fig. In the embodiment of the chassis axle 100 shown in Figures 4 to 8, however, a substantially vertical design and / or arrangement is provided.

[0131] Furthermore, the Fig. 9 to 12, the embodiment of the chassis axle 100 in terms of structure and function is similar to that shown in the Fig. 4 to 8, so that reference is made to the above description thereof in this respect. List of reference symbols 100 chassis axle 102 chassis 104 vehicles 106 wheels 108 Transverse leaf spring 110 direction of travel 112 End 114 wheel carriers 116 dampers 118 Central Section 120 final section 122 bridge area 124 Opening 126 electric motor 128 housings 130 drive shaft 134 Cardan shaft 136 Rotation axis 138 engine mounts 140 storage device 142 bearing element 144 clamping device 146 clamp 148 Recording section 150 receiving tab 152 elements 154 axle bearings 156 screw connection 158 screw element 160 clamping section 162 hollow cylindrical element 164 threaded rod 166 bearing ring 168 mother 170 lead

Claims

[1] Chassis axle (100) for a vehicle (104), in particular a motor vehicle, wherein the chassis axle (100) comprises: - a transverse leaf spring (108) which extends between two wheels (106) of the chassis axle (100) and serves for the resilient mounting of the wheels (106) on a supporting structure of the vehicle (104); - two electric motors (126) for driving the wheels (106), wherein the chassis axle (100) comprises a bearing device (140) which comprises a plurality of bearing elements (142) for supporting the electric motors (126) on the transverse leaf spring (108) and simultaneously for supporting the transverse leaf spring (108) on the supporting structure of the vehicle (104), characterized by , that by means of the plurality of bearing elements (142) of the bearing device, a housing (128) of each electric motor (126) is arranged on the transverse leaf spring (108), and wherein the bearing elements (142) of the bearing device (140) have a fastening section by means of which the respective bearing element (142) is fixed directly or indirectly to the supporting structure of the vehicle (104) in the mounted state. [2] Chassis axle (100) for a vehicle (104) according to claim 1, characterized by in that the transverse leaf spring (108) comprises a central section (118) which is arranged between two end sections (120) of the transverse leaf spring (108) facing the wheels (106), wherein the central section (118) is formed by two web regions (122) aligned at least approximately parallel to one another and at least approximately perpendicular to a direction of travel (110). [3] Chassis axle (100) for a vehicle (104) according to one of claims 1 or 2, characterized byin that the transverse leaf spring (108) comprises a central section (118) which is arranged between two end sections (120) of the transverse leaf spring (108) facing the wheels (106), wherein the end sections (120) are each formed by three web regions (122) forming a triangle. [4] Chassis axle (100) for a vehicle (104) according to claim 3, characterized by that the three web regions (122) of each end section (120) of the transverse leaf spring (108) forming a triangle surround an opening (124) of the respective end section (120) of the transverse leaf spring (108), into which an electric motor (126) extends in each case. [5] Chassis axle (100) for a vehicle (104) according to one of claims 3 or 4, characterized by that a bearing element (142) is fixed to each of the web regions (122) of the end sections (120) forming a triangle. [6] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 5, characterized bythat the transverse leaf spring (108) is formed in one piece. [7] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 6, characterized by that the transverse leaf spring (108) is formed from a fiber-reinforced material. [8] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 7, characterized by that the transverse leaf spring (108) is arranged completely below a rotation axis (136) of the wheels (106). [9] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 8, characterized by that at each end (112) of the transverse leaf spring (108) a wheel carrier (114) is fixed for rotatably receiving a wheel (106). [10] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 9, characterized by that the bearing elements (142) each comprise an elastically flexible element (152) for the resilient and / or damped mounting of the respective electric motor (126). [11] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 10, characterized by that the bearing elements (142) each have a receiving section (148) for the linearly displaceable mounting of the respective electric motor (126). [12] Chassis axle (100) for a vehicle (104) according to claim 11, characterized by that the receiving section (148) allows a movement of the electric motor (126) perpendicular to a plane along which the transverse leaf spring (108) extends. [13] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 12, characterized by that the bearing elements (142) each have an elastic bearing ring (166) by means of which the respective electric motor (126) is mounted so as to be movable in all spatial directions. [14] Chassis axle (100) for a vehicle (104) according to one of claims 1 to 13, characterized bythat the bearing elements (142) each comprise a clamp (146) for receiving and / or fixing a web region (122) of the transverse leaf spring (108). [15] Vehicle (104), in particular motor vehicle, characterized by that the vehicle (104) comprises one or more chassis axles (100) according to one of claims 1 to 14.

Citation Information

Patent Citations

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    DE102013211538A1

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    WO2015090750A1