Steering gear assembly of vehicle and vehicle

Abstract

The utility model discloses a steering gear assembly of a vehicle and the vehicle, and the steering gear assembly comprises a first shell, a second shell and a third shell, the first shell is movably provided with a lead screw; the transmission assembly is located in the first shell, the periphery of the lead screw is sleeved with the transmission assembly, the transmission assembly is in power connection with the lead screw, and the transmission assembly can selectively rotate relative to the first shell so as to be suitable for driving the lead screw to move; and the detection device is arranged in the first shell and arranged on the periphery of the transmission assembly in a sleeving mode, and the detection device is suitable for detecting the rotation angle of the transmission assembly. According to the steering gear assembly, the steering gear assembly can directly detect the rotation angle of the transmission assembly so as to measure the absolute position of the lead screw, measurement is more direct, and the number of parts and the occupied space are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicles, in particular to a steering gear assembly of a vehicle and the vehicle. BACKGROUND

[0002] In the related art, the core components of the steer-by-wire steering gear include a ball screw, a nut, a transmission belt, a motor, and a rotation angle sensor, etc. The working principle of the system is that the motor drives the nut to rotate through the transmission belt, and the nut in turn drives the ball screw to move linearly left and right, realizing the conversion from rotary motion to linear motion. In order to accurately measure the absolute position of the ball screw, the traditional method is to perform tooth profile processing on the ball screw part, and a pinion shaft is additionally provided to engage with the ball screw, and a rotation angle sensor is installed at the end of the pinion. However, although this method can effectively measure the rotation angle, it inevitably increases the overall occupied space of the system, bringing additional challenges to the vehicle layout design. Therefore, how to optimize the structure to reduce the occupied space while ensuring the measurement accuracy has become a problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a steering gear assembly of a vehicle, which can directly detect the rotation angle of the transmission assembly to measure the absolute position of the screw rod, and the measurement is more direct, and the number of parts and the occupied space are reduced.

[0004] The present application also provides a vehicle with the above-mentioned steering gear assembly.

[0005] According to the steering gear assembly of the vehicle of the embodiments of the present application, the first housing is movably provided with a screw rod, the transmission assembly is located in the first housing and is sleeved on the outer periphery of the screw rod and is in power connection with the screw rod, the transmission assembly is selectively rotatable relative to the first housing to drive the screw rod to move, and the detection device is arranged in the first housing and is sleeved on the outer periphery of the transmission assembly, and the detection device is adapted to detect the rotation angle of the transmission assembly.

[0006] According to the steering gear assembly of the vehicle of the embodiments of the present application, the first housing is movably provided with a screw rod, the transmission assembly is located in the first housing and is sleeved on the outer periphery of the screw rod and is in power connection with the screw rod, the transmission assembly is selectively rotatable relative to the first housing to drive the screw rod to move, and the detection device is arranged in the first housing and is sleeved on the outer periphery of the transmission assembly, and the detection device is adapted to detect the rotation angle of the transmission assembly.

[0007] In some embodiments of the present application, the detection device comprises: a housing arranged in the first shell and formed with a first through hole arranged through in the axial direction; a first gear part arranged in the first through hole and sleeved on the outer periphery of the transmission assembly, the first gear part being linked with the transmission assembly; and a detection assembly arranged in the housing and adapted to detect the rotation angle of the first gear part.

[0008] In some embodiments of the present application, the housing comprises: a second shell formed with the first through hole; and a cover plate arranged on the second shell and fixedly connected with the second shell.

[0009] In some embodiments of the present application, the outer peripheral wall of the second shell is formed with a first matching part, and the inner wall of the first shell is formed with a second matching part fixedly connected with the first matching part.

[0010] In some embodiments of the present application, the second shell is formed with a mounting hole; the detection assembly comprises: a second gear part arranged in the mounting hole and power-connected with the first gear part, the second gear part being arranged on one side in the axial direction and provided with a magnetic part; and a circuit board accommodated in the second shell and extending along the circumference of the first through hole, the circuit board being formed with a detection part arranged opposite to the magnetic part, and one end of the circuit board being formed with a connector.

[0011] In some embodiments of the present application, the second shell 141 is formed with a mounting groove recessed towards the inside, and the circuit board is accommodated in the mounting groove and abuts against the inner wall of the mounting groove.

[0012] In some embodiments of the present application, the housing further comprises: a fixing frame accommodated in the second shell (141) and connected with at least one of the second shell and the cover plate, the fixing frame being formed with a third through hole corresponding to the first through hole and a fourth through hole corresponding to the mounting hole; wherein the third through hole is adapted to mount the first gear part, and the fourth through hole is adapted to mount the second gear part.

[0013] In some embodiments of the present application, one side of the cover plate in the axial direction is formed with a first positioning part, the fixing frame is formed with a second positioning part corresponding to the first positioning part, and the circuit board is formed with an avoiding gap adapted to avoid the first positioning part and / or the second positioning part.

[0014] In some embodiments of the present application, the second shell is formed with a third positioning portion on one side along the axial direction, and the fixing frame is formed with a fourth positioning portion arranged correspondingly to the third positioning portion.

[0015] A vehicle according to an embodiment of the present application is briefly described below.

[0016] The vehicle according to an embodiment of the present application is provided with the steering gear assembly according to the above embodiment. Since the vehicle according to an embodiment of the present application is provided with the steering gear assembly according to the above embodiment, the detection device in the steering gear assembly of the vehicle can be arranged in the first shell and sleeved on the outer periphery of the transmission assembly. The detection device can directly detect the rotation angle of the transmission assembly and further obtain the linear displacement of the lead screw. Compared with the prior art, the number of components is reduced, the occupied space of the detection device is reduced, the cost is reduced, and the detection device is measured more directly and has high reliability.

[0017] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0019] Figure 1 is a sectional view of a steering gear assembly according to an embodiment of the present application;

[0020] Figure 2 is Figure 1 is a structural view of a detection device in the steering gear assembly;

[0021] Figure 3 is Figure 2 is an exploded view of the detection device in the steering gear assembly;

[0022] Figure 4 is Figure 3 is a structural view of a second shell in the steering gear assembly;

[0023] Figure 5 is Figure 3 is a structural view of a fixing frame in the steering gear assembly;

[0024] Figure 6 is Figure 3 is a partial structural view of a circuit board in the steering gear assembly;

[0025] Figure 7 is Figure 3 is a structural view of a cover plate in the steering gear assembly.

[0026] LIST OF REFERENCE NUMERALS

[0027] 10, steering gear assembly;

[0028] 11, first housing; 111, screw rod;

[0029] 12, transmission assembly; 121, synchronous belt; 122, pulley; 123, drive nut; 13, detection device;

[0030] 14, shell; 141, second housing; 1411, first through hole; 1412, first fitting part; 1413, mounting hole; 1414, third positioning part; 1415, mounting groove;

[0031] 142, cover plate; 1421, mounting stop; 1422, first positioning part;

[0032] 143, fixing frame; 1431, third through hole; 1432, fourth through hole; 1433, second positioning part; 1434, fourth positioning part;

[0033] 15, first gear part; 16, detection assembly; 161, second gear part; 1611, magnetic part;

[0034] 162, circuit board; 1621, detection part; 1622, connector; 1623, avoiding gap. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0036] Reference is made below to Figures 1-7 A steering gear assembly 10 of a vehicle according to an embodiment of the present application is described below, which comprises a first housing 11, a transmission assembly 12 and a detection device 13.

[0037] A screw rod 111 is movably arranged on the first housing 11. The transmission assembly 12 is located in the first housing 11, and the transmission assembly 12 is sleeved on the outer periphery of the screw rod 111 and is in power connection with the screw rod 111. The transmission assembly 12 is selectively rotatable relative to the first housing 11 to drive the screw rod 111 to move. The detection device 13 is arranged in the first housing 11 and is sleeved on the outer periphery of the transmission assembly 12. The detection device 13 is adapted to detect the rotation angle of the transmission assembly 12.

[0038] At present, in order to accurately measure the absolute position of the linear control steering gear ball screw, the traditional method is to perform tooth profile processing on the ball screw part, and a pinion shaft is additionally arranged to mesh with the ball screw part, and a rotation angle sensor is installed at the end of the pinion. However, although this method can effectively measure the rotation angle, it inevitably increases the overall occupied space of the system, which brings additional challenges to the vehicle layout design. Therefore, how to ensure the measurement accuracy while optimizing the structure to reduce the occupied space has become a problem to be solved.

[0039] To this end, the application provides a steering gear assembly 10 of a vehicle, which can directly detect the rotation angle of a transmission assembly 12 to measure the absolute position of a screw rod 111, and the measurement is more direct, and the number of components and the occupied space are reduced.

[0040] As shown in Figure 1 Specifically, the steering gear assembly 10 can include a first housing 11, a transmission assembly 12, and a detection device 13, and the screw rod 111 is movably arranged on the first housing 11, wherein the first housing 11 can serve as a steering gear main housing, and the screw rod 111 can move relative to the first housing 11. The transmission assembly 12 can be located in the first housing 11, and the transmission assembly 12 can be sleeved on the outer periphery of the screw rod 111, the transmission assembly 12 can be power connected with the screw rod 111, and the transmission assembly 12 can rotate relative to the first housing 11, thereby driving the screw rod 111 to move and realize the steering of the vehicle.

[0041] Further, the transmission assembly 12 can include a synchronous belt 121, a pulley 122, and a drive nut 123, the drive nut 123 can be sleeved on the outer periphery of the screw rod 111 and arranged with balls between the drive nut 123 and the screw rod 111, the pulley 122 can be arranged on the outer periphery of the drive nut 123, and the synchronous belt 121 can be power connected with the pulley 122. During steering, the power source transmits a power motion to the synchronous belt 121, the synchronous belt 121 meshes with the pulley 122 to drive the pulley 122 to rotate, the pulley 122 is rigidly connected with the drive nut 123, so as to convert the rotation angle of the pulley 122 into the linear motion distance of the screw rod 111 through the drive nut 123, thereby realizing the steering function of the vehicle.

[0042] The detection device 13 can be arranged in the first housing 11, and the detection device 13 can be stationary relative to the first housing 11. The detection device 13 can be sleeved on the outer periphery of the transmission assembly 12. Alternatively, the detection device 13 can be rigidly connected with the transmission assembly 12. Specifically, the detection device 13 can be sleeved on the outer periphery of the drive nut 123 and connected with the drive nut 123. The detection device 13 can detect the rotation angle of the drive nut 123. Since the drive nut 123 is connected with the lead screw 111 through the balls, and the drive nut 123 drives the lead screw 111 to move linearly through rotation, the detection device 13 can detect the rotation angle of the transmission assembly 12, and then calculate the linear movement distance of the lead screw 111, so as to obtain the absolute position of the lead screw 111. The measurement is more direct, the structural complexity of the steering gear assembly 10 is reduced, the parts in the prior art are omitted, and the arrangement of other parts in the steering gear assembly 10 is facilitated.

[0043] Briefly, the steering gear assembly 10 of the embodiment of the present application is provided with a first housing 11, a transmission assembly 12, and a detection device 13. The first housing 11 can be provided with a lead screw 111. The transmission assembly 12 can be arranged in the first housing 11 and connected with the lead screw 111 in a power manner. The detection device 13 can be arranged in the first housing 11 and sleeved on the outer periphery of the transmission assembly 12. The detection device 13 can directly detect the rotation angle of the transmission assembly 12 and then obtain the linear displacement of the lead screw 111. Compared with the prior art, the number of parts is reduced, the occupied space of the detection device 13 is reduced, the cost is reduced, and the measurement of the detection device 13 is more direct and reliable.

[0044] As shown in Figure 2 and Figure 3 In some embodiments of the present application, the detection device 13 can include a housing 14, a first gear part 15, and a detection assembly 16. The housing 14 can be arranged in the first housing 11, and the housing 14 can be formed with a first through hole 1411 penetrating in the axial direction. The axial direction can be the axial direction of the lead screw 111. The lead screw 111 can be arranged in the first through hole 1411. The first gear part 15 can be arranged in the first through hole 1411 and sleeved on the outer periphery of the transmission assembly 12. Specifically, the first gear part 15 can be located between the housing 14 and the lead screw 111, and the first gear part 15 can be connected with the transmission assembly 12 in linkage. In some embodiments, the first gear part 15 can be synchronously rotated with the transmission assembly 12. The detection assembly 16 can be arranged in the housing 14 and used for detecting the rotation angle of the first gear part 15. Since the first gear part 15 can be synchronously rotated with the transmission assembly 12, the detection assembly 16 can obtain the rotation angle of the transmission assembly 12 by detecting the rotation angle of the first gear part 15, and then obtain the linear displacement of the lead screw 111.

[0045] As Figure 3 shown in FIG. 1, in some embodiments of the present application, the shell 14 can include a second shell 141 and a cover plate 142, the second shell 141 can be arranged in the first shell 11, and a first through hole 1411 can be formed on the second shell 141, wherein the outer peripheral wall of the second shell 141 can be formed with a first matching part 1412, and the inner wall of the first shell 11 can be formed with a second matching part capable of fixedly connecting with the first matching part 1412, optionally, one of the first matching part 1412 and the second matching part can be configured as a clamping protrusion, and the other one can be configured as a clamping groove, by clamping and matching the clamping protrusion with the clamping groove, the clamping protrusion is accommodated in the clamping groove, the outer surface of the clamping protrusion abuts against the inner surface of the clamping groove to limit the movement of the clamping protrusion, so as to make the second shell 141 stationary relative to the first shell 11, so as to facilitate the detection device 13 to measure the rotation angle of the transmission assembly 12. The cover plate 142 can be arranged on the second shell 141, and the cover plate 142 can be fixedly connected with the second shell 141, specifically, the cover plate 142 can have a mounting stop 1421 capable of cooperating with the second shell 141, and the cover plate 142 can fix the first gear part 15 and the detection assembly 16 in the second shell 141.

[0046] As Figure 4 shown in FIG. 1, in some embodiments of the present application, the second shell 141 can be formed with a mounting hole 1413, the detection assembly 16 can include a second gear part 161 and a circuit board 162, the second gear part 161 can be arranged in the mounting hole 1413, and the second gear part 161 can be power-connected with the first gear part 15, the second gear part 161 can be provided with a magnetic member 1611 on one side in the axial direction, the circuit board 162 can be accommodated inside the second shell 141, and the circuit board 162 can extend along the circumference of the first through hole 1411, the circuit board 162 can be formed with a detection member 1621, the detection member 1621 can be arranged opposite to the magnetic member 1611, and one end of the circuit board 162 in the circumferential direction can be formed with a connector 1622, which can be used for connecting the outside.

[0047] The mounting holes 1413 can be configured as a plurality of mounting holes, the second gear portions 161 can be a plurality of second gear portions, the plurality of second gear portions 161 can be respectively arranged in the plurality of mounting holes 1413, and the detection members 1621 can be configured as a plurality of detection members arranged at intervals in the circumferential direction. The plurality of detection members 1621 can be arranged one-to-one with the plurality of second gear portions 161. In specific embodiments, the second gear portions 161 can be three, and the number of teeth of each second gear portion 161 is different. Therefore, when the three second gear portions 161 rotate in meshing with the first gear portion 15, the rotation angles of each second gear portion 161 are different. The absolute rotation angle of the first gear portion 15, i.e., the absolute rotation angle of the drive nut 123, i.e., the absolute linear displacement of the lead screw 111, is calculated by the difference in the rotation angles of each second gear portion 161. Thus, the detection device 13 can output a larger range of angles, which fully meets the need for angle measurement of the drive nut 123 for the full stroke of the lead screw 111 of the steering gear assembly 10.

[0048] As shown in Figure 7 In some embodiments of the present application, the second housing 141 can be formed with a mounting groove 1415 recessed towards the inside, and the circuit board 162 can be accommodated in the mounting groove 1415, and the circuit board 162 can abut against the inner wall of the mounting groove 1415, thereby limiting the circuit board 162, ensuring that the circuit board 162 can be installed in the mounting groove 1415, avoiding interference between the circuit board 162 and other parts, and reducing the occupied space of the circuit board 162.

[0049] As shown in Figure 5 In some embodiments of the present application, the housing 14 can further include a fixing frame 143, the fixing frame 143 can be accommodated in the mounting groove 1415 of the second housing 141, and the fixing frame 143 can be connected with at least one of the second housing 141 and the cover plate 142. The circuit board 162 can be placed on the fixing frame 143 and accommodated in the mounting groove 1415. The fixing frame 143 can be formed with a third through hole 1431 and a fourth through hole 1432. The third through hole 1431 can be arranged corresponding to the first through hole 1411, and the fourth through hole 1432 can be arranged corresponding to the mounting hole 1413. The third through hole 1431 can be used for mounting the first gear portion 15 to limit the first gear portion 15. The fourth through hole 1432 can be used for mounting the second gear portion 161 to limit the second gear portion 161. The fixing frame 143 can axially limit the first gear portion 15 and the second gear portion 161.

[0050] As shown in Figure 6 and 7As shown in the drawings, in some embodiments of the present application, the cover plate 142 can be formed with a first positioning portion 1422 on one side in the axial direction, the fixing frame 143 can be formed with a second positioning portion 1433, the second positioning portion 1433 can be correspondingly arranged with the first positioning portion 1422, the circuit board 162 can be formed with a avoiding gap 1623, the avoiding gap 1623 can be used to avoid the first positioning portion 1422 or the second positioning portion 1433, or the avoiding gap 1623 can simultaneously avoid the first positioning portion 1422 and the second positioning portion 1433, the first positioning portion 1422 and the second positioning portion 1433 can realize the positioning of the circuit board 162 in the axial direction, and optionally, one of the first positioning portion 1422 and the second positioning portion 1433 can be configured as a positioning column, and the other of the first positioning portion 1422 and the second positioning portion 1433 can be configured as a positioning groove, and the positioning column and the positioning groove are matched to realize the positioning of the circuit board 162.

[0051] As shown in the drawings, Figure 4 As shown in the drawings, in some embodiments of the present application, the second housing 141 can be formed with a third positioning portion 1414 on one side in the axial direction, the fixing frame 143 can be formed with a fourth positioning portion 1434, the fourth positioning portion 1434 can be correspondingly arranged with the third positioning portion 1414, and one of the third positioning portion 1414 and the fourth positioning portion 1434 can be configured as a positioning column, and the other of the third positioning portion 1414 and the fourth positioning portion 1434 can be configured as a positioning hole, and the positioning column and the positioning hole are matched to realize the positioning of the fixing frame 143.

[0052] The vehicle of the embodiments of the present application is briefly described below.

[0053] The vehicle according to the embodiments of the present application is provided with the diverter assembly 10 of the above-mentioned embodiments, and since the vehicle according to the embodiments of the present application is provided with the diverter assembly 10 of the above-mentioned embodiments, the detection device 13 in the diverter assembly 10 of the vehicle can be arranged in the first housing 11 and sleeved on the outer periphery of the transmission assembly 12, the detection device 13 can directly detect the rotation angle of the transmission assembly 12 and further obtain the linear displacement of the lead screw 111, compared with the prior art, the number of parts is reduced, the occupied space of the detection device 13 is reduced, the cost is reduced, and the detection device 13 measures more directly, and the reliability is high.

[0054] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0055] In the description of the application, "first feature" and "second feature" can include one or more of the features.

[0056] In the description of the application, "a plurality of" means two or more.

[0057] In the description of the application, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them.

[0058] In the description of the application, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in height.

[0059] In the description of the application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although embodiments of the application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1. A diverter assembly for a vehicle, characterized by, The application relates to a detection device for a first shell (11) of a first shell (11) and a transmission assembly (12) sleeved on the outer periphery of a screw rod (111) and connected with the screw rod (111) in power, the transmission assembly (12) being rotatable relative to the first shell (11) to drive the screw rod (111) to move. The detection device (13) comprises an outer shell (14) arranged in the first shell (11) and formed with a first through hole (1411) penetrating in the axial direction, a first gear part (15) arranged in the first through hole (1411) and sleeved on the outer periphery of the transmission assembly (12), the first gear part (15) being connected with the transmission assembly (12) in linkage, and a detection assembly (16) arranged in the outer shell (14) and adapted to detect the rotation angle of the first gear part (15). The outer shell (14) comprises a second shell (141) formed with the first through hole (1411), and a cover plate (142) arranged on the second shell (141) and fixedly connected with the second shell (141). The outer peripheral wall of the second shell (141) is formed with a first matching part (1412), and the inner wall of the first shell (11) is formed with a second matching part (1412) fixedly connected with the first matching part (1412).

2. The diverter assembly of claim 1, wherein, The second shell (141) is formed with a mounting hole (1413). The detection assembly (16) comprises a second gear part (161) arranged in the mounting hole (1413) and connected with the first gear part (15) in power, the second gear part (161) being provided with a magnetic part (1611) on one side in the axial direction, a circuit board (162) accommodated in the second shell (141) and extending along the circumferential direction of the first through hole (1411), the circuit board (162) being formed with a detection part (1621) arranged opposite to the magnetic part (1611), and one end of the circuit board (162) being formed with a connector (1622) in the circumferential direction. The second shell (141) is formed with a mounting groove (1415) recessed towards the inside, and the circuit board (162) is accommodated in the mounting groove (1415) and abuts against the inner wall of the mounting groove (1415). The outer shell (14) further comprises 3. The diverter assembly of claim 2, wherein, ​ ​ ​ 4. The diverter assembly of claim 3, wherein, ​ 5. The diverter assembly of claim 3, wherein, ​ ​ ​ ​ 6. The diverter assembly of claim 5, wherein, ​ 7. The diverter assembly of claim 6, wherein, ​ A fixing frame (143) is accommodated in the second housing (141) and connected with at least one of the second housing (141) and the cover plate (142), and a third through hole (1431) corresponding to the first through hole (1411) and a fourth through hole (1432) corresponding to the mounting hole (1413) are formed on the fixing frame (143); The third through hole (1431) is adapted to mount the first gear part (15), and the fourth through hole (1432) is adapted to mount the second gear part (161).

8. The diverter assembly of claim 7, wherein, A first positioning part (1422) is formed on one side of the cover plate (142) along the axial direction, a second positioning part (1433) corresponding to the first positioning part (1422) is formed on the fixing frame (143), and an avoiding gap (1623) adapted to avoid the first positioning part (1422) and / or the second positioning part (1433) is formed on the circuit board (162).

9. The diverter assembly of claim 8, wherein, A third positioning part (1414) is formed on one side of the second housing (141) along the axial direction, and a fourth positioning part (1434) corresponding to the third positioning part (1414) is formed on the fixing frame (143).

10. A vehicle characterized by comprising: A steering gear assembly of a vehicle comprising any one of the claims 1-9.

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