Vehicle comprising main frame and sub-frame

Abstract

A vehicle (2) is disclosed comprising a main frame (1), a sub-frame (3) and a first bracket (b1, b1 '). The main frame (1) comprises a first elongated main frame member (m1) elongated in the longitudinal direction (ld) of the vehicle (2), and the sub-frame (3) comprises a first sub-frame member (s1, s1 ') attached to the first elongated main frame member (m1) via 5 first brackets (b1, b1'). The first bracket (b1, b1 ') comprises a mounting portion (9, 9') for mounting a further vehicle device (5) to the first bracket (b1, b1 ').

Description

Technical Field

[0001] The present disclosure relates to a vehicle including a main frame and a sub-frame, wherein the main frame includes a first elongated main frame member extending in a longitudinal direction of the vehicle, and the sub-frame includes a first sub-frame member attached to the first elongated main frame member via a first bracket. Background Art

[0002] Heavier types of vehicles such as trucks generally include a main frame that includes two main frame beams extending along the longitudinal direction of the vehicle and a plurality of cross beams connecting the two main frame beams. In addition, these types of vehicles generally include a plurality of sub-frames mounted to the two main frame beams, where the sub-frames can support / carry one or more devices of the vehicle. The wheel suspension of the vehicle is generally attached to the two main frame beams, and during the driving of the vehicle, some relative movement may occur between the two main frame beams and the sub-frames mounted thereto. Such movement can affect the damping of the chassis vibration or cause tension applied to the components and devices mounted to the two main frame beams and to the components and devices mounted to the sub-frames.

[0003] Traditionally, internal combustion engines have been used in vehicles to provide power to the vehicle. However, the use of electric drive in vehicles offers many advantages, especially in terms of local emissions. Such vehicles include one or more electric propulsion motors configured to provide power to the vehicle. These types of vehicles can be classified as pure electric vehicles and hybrid electric vehicles. Pure electric vehicles, sometimes referred to as battery electric vehicles, all-electric vehicles, and fully electric vehicles, include a pure electric power system and do not include an internal combustion engine, and thus do not produce emissions where they are used.

[0004] Hybrid electric vehicles include two or more different types of power, such as an internal combustion engine and an electric propulsion system. The combination of an internal combustion engine and an electric propulsion system provides advantages in terms of energy efficiency, partly because the internal combustion engine has poor energy efficiency at lower power output levels. In addition, some hybrid electric vehicles are capable of operating in pure electric drive mode when needed (e.g., when driving in certain areas).

[0005] Electricity is typically stored in a battery pack including a plurality of rechargeable battery cells. Some different types of battery cells are used, such as lithium-ion battery cells, lithium polymer battery cells, and other types of rechargeable battery cells. One problem with the battery pack is that the battery cells take up space and generally a large number of battery cells are required to ensure sufficient available operating range, system voltage, and power of the vehicle, especially in heavier types of vehicles. Therefore, the use of electric drive in vehicles may cause loading problems, especially in heavier types of vehicles.

[0006] The vehicle comfort experienced by a driver is affected by a combination of various factors, such as engine vibrations and road-induced vibrations, as well as the effect of the mass provided by the vehicle on damping the vibrations. The mass provided by the vehicle can be in the form of a main frame, a sub-frame, and other vehicle-mounted components. For the described pure electric vehicle, in the absence of the additional influence of a combustion engine, the importance of the clearly defined and controlled mass provided by the vehicle increases.

[0007] Furthermore, in modern vehicle manufacturing, it is a great advantage if the vehicle is designed in a modular manner, thereby allowing different types of vehicles to be manufactured using the same or similar components and devices. However, generally, it is difficult to allow the assembly of different types of vehicles without having to re-design several basic components and devices of the vehicle.

[0008] Moreover, generally speaking, it would be advantageous if a product (such as a vehicle and associated components, systems, and devices) has conditions and / or characteristics suitable for being manufactured and assembled in a cost-effective manner. Summary of the Invention

[0009] The object of the present invention is to overcome or at least mitigate at least some of the above problems and disadvantages.

[0010] According to one aspect of the present invention, the object is achieved by a vehicle comprising a main frame, a sub-frame, and a first bracket, wherein the main frame comprises a first elongated main frame member extending in the longitudinal direction of the vehicle, and the sub-frame comprises a first sub-frame member attached to the first elongated main frame member via the first bracket, and wherein the first bracket comprises a mounting portion for mounting additional vehicle devices to the first bracket.

[0011] Since the first bracket attaches the first sub-frame member to the first elongated main frame member and comprises a mounting portion for mounting additional vehicle devices to the first bracket, conditions are provided that allow various types of additional vehicle devices to be mounted to the main frame and the sub-frame in a quick, simple, and rigid manner via the mounting portion of the first bracket without having to re-design one or more of the main frame, the sub-frame, and the first bracket.

[0012] Furthermore, since the first bracket attaches the first sub-frame member to the first elongated main frame member and comprises a mounting portion for mounting additional vehicle devices to the first bracket, conditions are provided for a space-efficient attachment of the first sub-frame member to the first elongated main frame member, and a space-efficient mounting of the additional vehicle devices to the first bracket and thus also to the main frame and the sub-frame. In other words, due to these features, a vehicle is provided that has conditions for alleviating loading problems.

[0013] In addition, since the first bracket attaches the first sub-frame member to the first elongated main frame member and includes an attachment portion for attaching additional vehicle devices to the first bracket, conditions for a smaller sub-frame are provided, and the smaller sub-frame can create space for other components and devices of the vehicle, such as additional vehicle devices attached to the main frame and the sub-frame via the first bracket. Therefore, for these reasons as well, a vehicle is provided that has conditions for alleviating loading problems.

[0014] Furthermore, since the first bracket attaches the first sub-frame member to the first elongated main frame member and includes an attachment portion for attaching additional vehicle devices to the first bracket, the tension between the components and devices of the vehicle can be reduced, such as the tension between the components and devices attached to the first sub-frame member. Additionally, a more uniform load distribution can be provided between the first sub-frame member and the first elongated main frame member, which can also reduce the tension and the occurrence of undesirable chassis vibrations.

[0015] Therefore, a vehicle is provided that overcomes or at least alleviates at least some of the above problems and disadvantages. Thus, the above objectives are achieved.

[0016] The feature that the first elongated main frame member extends in the longitudinal direction of the vehicle can encompass an angle of less than 15 degrees or less than 10 degrees between the extension direction of the first elongated main frame member and the longitudinal direction of the vehicle.

[0017] Optionally, as seen in relation to the vertical direction of the vehicle, the first sub-frame member is attached to the first elongated main frame member at a position above the main frame. Thereby, a vehicle is provided that has conditions for supporting additional vehicle devices relative to the main frame via the sub-frame in a space-efficient manner. Additionally, a more uniform load distribution between the first sub-frame member and the first elongated main frame member can be ensured to reduce the tension and the occurrence of undesirable chassis vibrations.

[0018] Optionally, the first sub-frame member extends in the longitudinal direction of the vehicle. Thereby, a vehicle is provided that has conditions for supporting additional vehicle devices relative to the main frame via the sub-frame in a space-efficient manner. Additionally, a more uniform load distribution between the first sub-frame member and the first elongated main frame member can be ensured to reduce the tension and the occurrence of undesirable chassis vibrations.

[0019] The feature that the first sub-frame member extends in the longitudinal direction of the vehicle can encompass an angle of less than 15 degrees or less than 10 degrees between the extension direction of the first sub-frame member and the longitudinal direction of the vehicle.

[0020] Optionally, the first bracket includes a first attachment portion and a second attachment portion each including a plurality of through-holes, wherein the first attachment portion is attached to the first elongated main frame member by a plurality of fastening elements each extending through a through-hole of the first attachment portion, and wherein the second attachment portion is attached to the first sub-frame member by a plurality of fastening elements each extending through a through-hole of the second attachment portion. Thereby, a vehicle is provided that has conditions for alleviating loading problems, while the vehicle has conditions and characteristics suitable for being manufactured and assembled in a cost-effective manner.

[0021] Optionally, the first bracket includes a first attachment portion attached to the first elongated main frame member and a second attachment portion attached to the first sub-frame member, and wherein each of the first attachment portion and the second attachment portion of the first bracket is plate-shaped in a first plane, and wherein each of the angle between the first plane and the longitudinal direction of the vehicle and the angle between the first plane and the vertical direction of the vehicle is less than 15 degrees or less than 10 degrees. Thereby, conditions are provided for quickly, simply, and firmly attaching the first bracket to the first elongated main frame member and the first sub-frame member. In addition, due to these features, a vehicle is provided that has conditions for alleviating loading problems, while the vehicle has conditions and characteristics suitable for being manufactured and assembled in a cost-effective manner. In addition, due to these features, a more uniform load distribution between the first sub-frame member and the first elongated main frame member can be ensured, so as to reduce the occurrence of tension and unwanted chassis vibrations.

[0022] Optionally, the mounting portion includes a first mounting section, and wherein the first mounting section is planar in a second plane, wherein the angle between the second plane and the longitudinal direction of the vehicle is less than 15 degrees or less than 10 degrees, and wherein the angle between the second plane and the vertical direction of the vehicle is in the range of 75 - 105 degrees or in the range of 80 - 100 degrees. Thereby, a vehicle is provided that has conditions for quickly, simply, and firmly mounting additional vehicle devices to the first bracket and thus also to the first elongated main frame member and the first sub-frame member. In addition, due to these features, conditions are provided that allow various types of additional vehicle devices to be mounted to the main frame and the sub-frame via the mounting portion of the first bracket in a simple and rigid manner without having to re-design one or more of the main frame, the sub-frame, and the first bracket.

[0023] Optionally, the first mounting portion includes a plurality of holes, each of which is configured to receive a fastening element for mounting an additional vehicle device to the first bracket. Thereby, conditions are provided for quickly, simply, and firmly mounting an additional vehicle device to the first bracket and thus also to the first elongated main frame member and the first sub-frame member. Further, due to these features, conditions are provided that allow various types of additional vehicle devices to be mounted to the main frame and the sub-frame via the mounting portion of the first bracket in a simple and rigid manner without having to re-design one or more of the main frame, the sub-frame, and the first bracket.

[0024] Optionally, the vehicle includes a second bracket, wherein the main frame includes a second elongated main frame member extending in the longitudinal direction of the vehicle, and wherein the sub-frame includes a second sub-frame member attached to the second elongated main frame member via the second bracket, and wherein the second bracket includes a second mounting portion for mounting an additional vehicle device to the second bracket. Thereby, it can be further ensured that various types of additional vehicle devices can be mounted to the main frame and the sub-frame in a quick, simple, and rigid manner while providing conditions for alleviating loading problems. Further, due to these features, a more uniform load distribution between the second sub-frame member and the second elongated main frame member can be ensured in order to reduce the occurrence of tension and unwanted chassis vibrations.

[0025] Optionally, the second bracket is arranged at the same longitudinal position on the vehicle as the first bracket. Thereby, it can be further ensured that various types of additional vehicle devices can be mounted to the main frame and the sub-frame in a quick, simple, and rigid manner while providing conditions for alleviating loading problems.

[0026] Optionally, the second bracket has the same but mirror-image design and layout as the first bracket. Thereby, it can be further ensured that various types of additional vehicle devices can be mounted to the main frame and the sub-frame in a quick, simple, and rigid manner while providing conditions for alleviating loading problems. Further, due to these features, the first bracket and the second bracket can be manufactured in a cost-effective manner.

[0027] Optionally, the mounting portion of the first bracket includes a first mounting section that is planar in a second plane, where the angle between the second plane and the longitudinal direction of the vehicle is less than 15 degrees or less than 10 degrees, and where the angle between the second plane and the vertical direction of the vehicle is in the range of 75 - 105 degrees or in the range of 80 - 100 degrees, and where the mounting portion further includes a second mounting section that is planar in a third plane, where the third plane is angled relative to the second plane. Thereby, it can be further ensured that various types of additional vehicle devices can be mounted to the main frame and the sub-frame in a quick, rigid, and reliable manner, while providing conditions for alleviating loading problems.

[0028] Optionally, the angle between the third plane and the longitudinal direction of the vehicle is in the range of 75 - 105 degrees or in the range of 80 - 100 degrees. Thereby, it can be further ensured that various types of additional vehicle devices can be mounted to the main frame and the sub-frame in a quick, rigid, and reliable manner, while providing conditions for alleviating loading problems.

[0029] Optionally, the second mounting section includes a plurality of holes, each of which is configured to receive a fastening element for mounting an additional vehicle device to the first bracket. Thereby, conditions are provided for quickly, simply, and firmly mounting an additional vehicle device to the first bracket and thus also to the first elongated main frame member and the first sub-frame member. Additionally, due to these features, further improved conditions are provided that allow various types of additional vehicle devices to be mounted to the main frame and the sub-frame via the mounting portion of the first bracket in a simple and rigid manner without having to re-design one or more of the main frame, the sub-frame, and the first bracket.

[0030] Optionally, the sub-frame includes a third sub-frame member, and where the first bracket includes a third attachment portion attached to the third sub-frame member. Thereby, a vehicle is provided in which the first sub-frame member, the third sub-frame member, the first elongated main frame member, and an additional vehicle device can be attached to each other via one component (i.e., the first bracket). Thus, in this way, a vehicle is provided that is capable of alleviating loading problems, that is capable of allowing the installation of various types of additional vehicle devices, while the vehicle has conditions and characteristics suitable for being manufactured and assembled in a cost-effective manner. Additionally, due to these features, a more uniform load distribution can be ensured between the first sub-frame member, the first elongated main frame member, and the third sub-frame member in order to reduce tension and the occurrence of unwanted chassis vibrations.

[0031] Optionally, the third attachment portion of the first bracket is plate-shaped in a first plane, where each of the angle between the first plane and the longitudinal direction of the vehicle and the angle between the first plane and the vertical direction of the vehicle is less than 15 degrees or less than 10 degrees. Thereby, conditions are provided for quickly, simply, and firmly attaching the first bracket to the first elongated main frame member, the first sub-frame member, and the third sub-frame member. In addition, due to these features, a vehicle is provided that has conditions for alleviating loading problems, while the vehicle has conditions and characteristics suitable for being manufactured and assembled in a cost-effective manner. In addition, due to these features, a more uniform load distribution can be ensured between the first sub-frame member, the first elongated main frame member, and the third sub-frame member, so as to reduce the occurrence of tension and unwanted chassis vibrations.

[0032] Optionally, the first elongated main frame member is formed as a beam having a U-shaped cross-section in a plane perpendicular to the elongation direction of the first elongated main frame member. Thereby, a rigid and durable first elongated main frame member with conditions for low weight can be provided. In addition, it can also be ensured that the first sub-frame member can be attached to the first elongated main frame member quickly, simply, and rigidly using the first bracket.

[0033] Optionally, the first sub-frame member is formed as a beam having a U-shaped cross-section in a plane perpendicular to the elongation direction of the first sub-frame member. Thereby, a rigid and durable first sub-frame member with conditions for low weight can be provided. In addition, it can also be ensured that the first sub-frame member can be attached to the first elongated main frame member quickly, simply, and rigidly using the first bracket. In addition, a low level of tension and unwanted chassis vibrations can be ensured.

[0034] Optionally, an additional vehicle device is configured to supply energy to the propulsion system of the vehicle. Thereby, conditions are provided for a space-efficient and cost-effective installation of the additional vehicle device capable of increasing the operating range of the vehicle.

[0035] Optionally, the additional vehicle device includes at least one of a propulsion battery, a fuel gas tank, and a pantograph. Thereby, conditions are provided for a space-efficient and cost-effective installation of the additional vehicle device capable of increasing the operating range of the vehicle.

[0036] Optionally, the additional vehicle device includes a power output assembly. Thereby, conditions are provided for a space-efficient and cost-effective installation of the additional vehicle device including the power output assembly.

[0037] Optionally, the vehicle is a heavy-duty road vehicle, such as a truck or a bus. Thereby, a heavy-duty road vehicle having at least some of the above advantages is provided.

[0038] The further features and advantages of the present invention will become apparent when the appended claims and the following detailed description are studied. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Aspects of the present invention, including its particular features and advantages, will be readily understood from the following detailed description and the exemplary embodiments discussed in the drawings, in which:

[0040] Figure 1 A vehicle according to some embodiments is schematically illustrated.

[0041] Figure 2 Shown according to Figure 1 A perspective view of a portion of a frame assembly of the vehicle shown in

[0042] Figure 3 Shown Figure 2 A side view of a portion of the frame assembly shown in

[0043] Figure 4 Shown according to Figure 2 And Figure 3 A perspective view of a first bracket of the frame assembly of the embodiment shown in

[0044] Figure 5 A perspective view of a portion of a frame assembly according to some additional embodiments is shown.

[0045] Figure 6 Shown Figure 5 A side view of a portion of the frame assembly shown in

[0046] Figure 7 Shown according to Figure 5 And Figure 6 A perspective view of a first bracket of the frame assembly of the embodiment shown in DETAILED DESCRIPTION

[0047] Aspects of the present invention will now be described more fully. Like reference numerals always refer to like elements. For the sake of brevity and / or clarity, well-known functions or constructions will not be described in detail.

[0048] Figure 1 A vehicle 2 according to some embodiments is schematically illustrated. According to the illustrated embodiments, the vehicle 2 is a truck, i.e., a heavy-duty road vehicle, and a heavy-duty commercial vehicle. According to additional embodiments, as referred to herein, the vehicle 2 may be another type of heavy or lighter manned or unmanned vehicle for land-based propulsion, such as a van, a construction vehicle, a tractor, a bus, etc.

[0049] Vehicle 2 includes a propulsion system 10 configured to provide power for vehicle 2 via wheels 47 of vehicle 2. As further explained below, according to the illustrated embodiment, the propulsion system includes an electric motor for providing power to vehicle 2. This is because the propulsion system 10 of vehicle 2 according to the illustrated embodiment is a pure electric propulsion system. However, according to additional embodiments, the propulsion system 10 of vehicle 2 may include an internal combustion engine configured to provide power to vehicle 2. The internal combustion engine may be arranged to supplement one or more electric motors for providing power to vehicle 2, or may be provided as the sole means for providing power to vehicle 2.

[0050] In Figure 1 vehicle 2 is shown in an intended use position on a flat surface 51 that supports vehicle 2. As Figure 1 seen, when vehicle 2 is in the intended use position on the flat surface, wheels 47', 47 of vehicle 2 abut against the flat surface 51. Further, in Figure 1 the forward movement direction fd and the reverse movement direction rd of vehicle 2 are indicated. The reverse movement direction rd of vehicle 2 is opposite to the forward movement direction fd of vehicle 2.

[0051] Figure 1 Vehicle 2 in

[0052] is shown as including two axles, each axle including a plurality of wheels 47', 47. According to the illustrated embodiment, the wheels 47' of the first axle w1 constitute the front wheels of vehicle 2. The wheels 47' of the first axle w1 may also be referred to as the front wheels of vehicle 2. According to the illustrated embodiment, the wheels 47' of the first axle w1 are steerable non-driven wheels. However, according to additional embodiments, the wheels 47' of the first axle w1 may be driven wheels, i.e., may be driven by the propulsion system 10 of vehicle 2 to rotate.

[0053] In addition, according to the illustrated embodiment, the wheels 47 of the second axle w2 of vehicle 2 constitute the rear wheels of vehicle 2. The wheels 47 of the second axle w2 may also be referred to as the rear wheels of vehicle 2. According to the illustrated embodiment, the wheels 47 of the second axle w2 are non-steerable driven wheels. That is, according to the illustrated embodiment, the wheels 47 of the second axle w2 have a fixed rolling direction relative to the frame assemblies 40, 40' of vehicle 2 and are arranged to be rotated by the propulsion system 10 of vehicle 2.

[0054] According to some additional embodiments, the wheel 47 of the second axle w2 can be a non-driven wheel. Additionally, according to some embodiments, the wheel 47 of the second axle w2 can be a steering wheel, i.e., it can be arranged such that its rolling direction relative to the frame assemblies 40, 40' of the vehicle 2 can be changed by a steering device.

[0055] Furthermore, according to additional embodiments, the vehicle 2 can be provided with a configuration of wheels 47', 47 and axles different from that depicted in Figure 1 . For example, the vehicle 2 can include two or more rear axles.

[0056] Furthermore, in Figure 1 , the longitudinal direction ld of the vehicle 2 is indicated. When the vehicle 2 is positioned in the intended upright use position on a flat surface, the longitudinal direction ld of the vehicle 2 is parallel to the flat surface 51 that supports the vehicle 2. Additionally, the longitudinal direction ld of the vehicle 2 is parallel to the forward movement direction fd and the reverse movement direction rd of the vehicle 2. Furthermore, in Figure 1 , the vertical direction vd of the vehicle 2 is indicated. The vertical direction vd of the vehicle 2 is perpendicular to the longitudinal direction ld of the vehicle 2. Additionally, when the vehicle 2 is positioned in the intended use position on a flat horizontal surface, the vertical direction vd of the vehicle 2 coincides with the gravity vector at the location of the vehicle 2.

[0057] The vehicle 2 includes a main frame 1. The axles of the vehicle 2 are connected to the main frame 1 of the vehicle 2 via respective suspension devices. For reasons of simplicity and clarity, Figure 1 the suspension devices of the vehicle 2 are not shown in

[0058] . As further explained herein, the main frame 1 supports various vehicle devices of the vehicle 2, such as a cab, a cargo unit 13, a propulsion system 10, etc.

[0059] Figure 2 A perspective view of a part of the frame assembly 40 of the vehicle 2 according to some embodiments shown in Figure 1 is shown. In the following, if not otherwise indicated, reference is made simultaneously to Figure 1 andFigure 2 。

[0060] As mentioned, the frame assembly 40 of the vehicle 2 includes the main frame 1, the sub-frame 3, and the first bracket b1. As Figure 2 seen, the main frame 1 includes the first elongated main frame member m1. The first elongated main frame member m1 extends in the longitudinal direction ld of the vehicle 2. The feature that the first elongated main frame member m1 extends in the longitudinal direction ld of the vehicle 2 may cover that the angle between the extension direction de of the first elongated main frame member m1 and the longitudinal direction ld of the vehicle 2 is less than 15 degrees or less than 10 degrees.

[0061] The sub-frame 3 includes the first sub-frame member s1. According to the illustrated embodiment, the first sub-frame member s1 extends in the longitudinal direction ld of the vehicle 2. Thus, according to the illustrated embodiment, the first sub-frame member s1 may also be referred to as the first elongated sub-frame member. The feature that the first sub-frame member s1 extends in the longitudinal direction ld of the vehicle 2 may cover that the angle between the extension direction de’ of the first sub-frame member s1 and the longitudinal direction ld of the vehicle 2 is less than 15 degrees or less than 10 degrees.

[0062] Figure 1 The extension direction de’ of the first sub-frame member s1 and the extension direction de of the first elongated main frame member m1 are also indicated. According to the illustrated embodiment, the extension direction de’ of the first sub-frame member s1 coincides with the extension direction de of the first elongated main frame member m1.

[0063] The first sub-frame member s1 is attached to the first elongated main frame member m1 via the first bracket b1. In other words, the first bracket b1 attaches the first sub-frame member s1 to the first elongated main frame member m1. According to the illustrated embodiment, as seen with respect to the vertical direction vd of the vehicle 2, the first sub-frame member s1 is attached to the first elongated main frame member m1 at a position above the first elongated main frame member m1 of the main frame 1. In addition, as described above, according to the illustrated embodiment, the frame assembly 40 of the vehicle 2 includes a plurality of attachment members 15, 17 that attach the first sub-frame member s1 to the first elongated main frame member m1.

[0064] More specifically, according to the illustrated embodiment, the plurality of attachment members 15, 17 that attach the first sub-frame member s1 to the first elongated main frame member m1 includes four rigid attachment members 17 and two spring-loaded attachment members. In Figure 2 only two of the four rigid attachment members 17 are seen. However, all four rigid attachment members 17 are seen and indicated in Figure 1 。

[0065] The rigid attachment member 17 is configured to rigidly connect the first sub-frame member s1 to the first elongated main-frame member m1, which means that they are arranged to prevent relative movement between the first sub-frame member s1 and the first elongated main-frame member m1 in a direction parallel to the vertical direction vd of the vehicle 2.

[0066] The spring-loaded attachment member 15 is configured to connect the first sub-frame member s1 to the first elongated main-frame member m1 in a less rigid manner, which means that they are arranged to allow some relative movement between the first sub-frame member s1 and the first elongated main-frame member m1 in a direction parallel to the vertical direction vd of the vehicle 2. Each of the spring-loaded members 15 in the spring-loaded attachment member 15 includes a plurality of springs, and the plurality of springs are arranged to be compressed when the relative distance between the first sub-frame member s1 and the first elongated main-frame member m1 increases in a direction parallel to the vertical direction vd of the vehicle 2. In this way, the spring-loaded attachment member 15 biases the first sub-frame member s1 towards the first elongated main-frame member m1 in the vertical direction vd of the vehicle 2.

[0067] According to a further embodiment, the frame assembly 40 of the vehicle 2 may include a further plurality of rigid attachment members 17 that attach the first sub-frame member s1 to the first elongated main-frame member m1. Similarly, the frame assembly 40 of the vehicle 2 may include a further plurality of spring-loaded attachment members 15 that attach the first sub-frame member s1 to the first elongated main-frame member m1.

[0068] Figure 3 Is shown Figure 2 A side view of a portion of the frame assembly 40 shown in. In the following, if not otherwise indicated, reference is made simultaneously to Figure 1 - Figure 3 .

[0069] According to the illustrated embodiment, the first elongated main-frame member m1 is formed as a beam having a U-shaped cross-section in a plane P4 perpendicular to the elongation direction de of the first elongated main-frame member m1. The plane p4 is indicated in Figure 3 . Further, according to the illustrated embodiment, the first sub-frame member s1 is also formed as a beam having a U-shaped cross-section in a plane P4 perpendicular to the elongation direction de' of the first sub-frame member s1.

[0070] As Figure 2 And Figure 3 Indicated, the first bracket b1 includes a mounting portion 9 for mounting a further vehicle device 5 to the first bracket b1. In Figure 1 And Figure 3 , the further vehicle device 5 is schematically shown as a dashed box.

[0071] According to the illustrated embodiments, the additional vehicle device 5 includes a propulsion battery. The propulsion battery may also be referred to as a propulsion battery pack and may include a plurality of rechargeable battery cells, such as lithium-ion battery cells, lithium polymer battery cells, and the like. According to these embodiments, the propulsion battery of the additional vehicle device 5 is configured to supply power to the propulsion system 10 of the vehicle 2 during operation of the vehicle 2.

[0072] According to some additional embodiments, the additional vehicle device 5 as mentioned herein may include a pantograph. Also in these embodiments, the pantograph of the additional vehicle device 5 may be configured to supply power to the propulsion system 10 of the vehicle 2 during operation of the vehicle 2.

[0073] In addition, according to some embodiments, the additional vehicle device 5 may include a fuel gas tank. According to these embodiments, the propulsion system 10 of the vehicle 2 may include an internal combustion engine configured to operate relying on the fuel gas stored in the fuel gas tank of the additional vehicle device 5.

[0074] Thus, in all of the above embodiments, the additional vehicle device 5 is configured to supply energy to the propulsion system 10 of the vehicle 2. However, according to additional embodiments, the additional vehicle device 5 as mentioned herein may include another type of device, such as a power output assembly including one or more power output units.

[0075] The power take-off, commonly abbreviated as PTO, is a device for obtaining power from the propulsion system 10 of the vehicle 2 and transmitting it to a power-consuming member (such as a stationary device, an attached appliance, or a separate machine). The power take-off may be configured to drive a temporarily or permanently attached unit, such as, for example, a hydraulic unit configured to tilt the dump body of a dump truck, a crane, and the like.

[0076] Since the first bracket b1 attaches the first sub-frame member s1 to the first elongated main frame member m1 and includes a mounting portion 9 for mounting the additional vehicle device 5 to the first bracket b1, conditions are provided that allow various types of additional vehicle devices 5 to be mounted to the main frame 1 and the sub-frame 3 in a quick, simple, and rigid manner via the mounting portion 9 of the first bracket b1 without having to re-design one or more of the main frame 1, the sub-frame 3, and the first bracket b1 when changing the type of the additional vehicle device 5 attached to the main frame 1 and the sub-frame 3.

[0077] In addition, since the first bracket b1 attaches the first sub-frame member s1 to the first elongated main frame member m1 and includes an attachment portion 9 for attaching additional vehicle devices 5 to the first bracket b1, conditions are provided for the space-efficient attachment of the additional vehicle devices 5 to the first bracket b1 and thus also to the main frame 1 and the sub-frame 3. In other words, due to these features, a vehicle 2 is provided that has conditions for alleviating loading problems.

[0078] Furthermore, since the first bracket b1 attaches the first sub-frame member s1 to the first elongated main frame member m1 and includes an attachment portion 9 for attaching additional vehicle devices 5 to the first bracket b1, conditions are provided for a smaller sub-frame 3, which can make room for other components and devices of the vehicle (such as additional vehicle devices 5 attached to the main frame 1 and the sub-frame 3 via the first bracket b1). That is, the sub-frame 3 generally extends all the way to the front axle of the vehicle 2, such as to Figure 1 the first wheel axle w1 indicated in. However, according to Figure 2 and Figure 3 the embodiment shown in, a relatively short sub-frame 3 can be used, which can make room for other components and devices of the vehicle (such as additional vehicle devices 5 attached to the main frame 1 and the sub-frame 3 via the first bracket b1). Therefore, also for these reasons, a vehicle 2 is provided that has conditions for alleviating loading problems.

[0079] In addition, since the first bracket b1 attaches the first sub-frame member s1 to the first elongated main frame member m1 and includes an attachment portion 9 for attaching additional vehicle devices 5 to the first bracket b1, the tension between the components and devices of the vehicle 2 can be reduced, for example, the tension between the components and devices attached to the first sub-frame member s1. Additionally, a more uniform load distribution can be provided between the first sub-frame member s1 and the first elongated main frame member m1, which can also reduce the tension and the occurrence of unwanted chassis vibrations. That is, by connecting the first sub-frame member s1 to the first elongated main frame member m1 via the first bracket b1, the first sub-frame member s1 can be better used to strengthen the frame assembly 40 in order to reduce the tension and the occurrence of unwanted chassis vibrations.

[0080] As Figure 3 indicated, the first bracket b1 includes a first attachment portion a1 and a second attachment portion a2 each including a plurality of through-holes h1, h2. The first attachment portion a1 is configured to be attached to the first elongated main frame member m1 by a plurality of fastening elements 4, each fastening element extending through the through-hole h1 of the first attachment portion a1 and into a hole provided in the first elongated main frame member m1. For reasons of brevity and clarity, Figure 3There is no indication of a hole provided in the first elongate main frame member m1.

[0081] In Figure 3 there is schematically shown a fastening element 4 in the form of a bolt. According to the illustrated embodiment, the first attachment portion a1 is configured to be attached to the first elongate main frame member m1 by a plurality of fastening elements 4, each fastening element extending through a through-hole h1 of the first attachment portion a1 and through a hole provided in the first elongate main frame member m1, wherein the fastening element 4 is fixed relative to the first attachment portion a1 and the first elongate main frame member m1 using a nut threaded onto a threaded portion of the respective fastening element 4.

[0082] According to a further embodiment, the hole provided in the first elongate main frame member m1 may be threaded, wherein the first attachment portion a1 is fixed relative to the first elongate main frame member m1 by threading the threaded portion of the fastening element into the threaded hole of the first main frame member m1.

[0083] As understood from the foregoing, in Figure 3 the frame assembly 40 is shown in a partially assembled state, in which no fastening element 4 is inserted into the through-hole h1 of the first attachment portion a1. However, when the frame assembly 40 is in a fully assembled state, the first attachment portion a1 is attached to the first elongate main frame member m1 by a plurality of fastening elements 4 each extending through the through-hole h1 of the first attachment portion a1.

[0084] Similarly, the second attachment portion a2 is configured to be attached to the first sub-frame member s1 by a plurality of fastening elements 4, each fastening element extending through a through-hole h2 of the second attachment portion a2 and into a hole provided in the first sub-frame member s1. For reasons of simplicity and clarity, Figure 3 there is no indication of a hole provided in the first sub-frame member s1.

[0085] According to the illustrated embodiment, the second attachment portion a2 is configured to be attached to the first sub-frame member s1 by a plurality of fastening elements 4, each fastening element extending through a through-hole h2 of the second attachment portion a2 and through a hole provided in the first sub-frame member s1, wherein the fastening element 4 is fixed relative to the second attachment portion a2 and the first sub-frame member s1 using a nut threaded onto a threaded portion of the respective fastening element 4.

[0086] According to a further embodiment, the hole provided in the first sub-frame member s1 may be threaded, wherein the second attachment portion a2 is fixed relative to the first sub-frame member s1 by threading the threaded portion of the fastening element into the threaded hole of the first main frame member m1.

[0087] In Figure 3In the partially assembled state shown, no fastening element 4 is inserted into the through-hole h2 of the second attachment part a2. However, when the frame assembly 40 is in the fully assembled state, the second attachment part a2 is attached to the first sub-frame member s1 by a plurality of fastening elements 4 that each extend through the through-hole h2 of the second attachment part a2. Thus, overall, when the frame assembly 40 is in the fully assembled state, the first attachment part a1 of the first bracket b1 is attached to the first elongated main frame member m1, and the second attachment part a2 of the first bracket b1 is attached to the first sub-frame member s1.

[0088] Figure 4 A perspective view of the first bracket b1 of the frame assembly 40 according to the embodiment shown in Figure 2 and Figure 3 is shown. In the following, if not otherwise indicated, reference is made simultaneously to Figure 1 - Figure 4 .

[0089] In Figure 4 , the longitudinal direction ld and the vertical direction vd of the vehicle 2 are indicated, and Figure 4 the first bracket b1 shown in is shown in the intended mounting orientation with respect to these directions.

[0090] As indicated in Figure 4 , according to the shown embodiment, each of the first attachment part a1 and the second attachment part a2 of the first bracket b1 is plate-shaped in a first plane P1. Further, as visible in Figure 4 , according to the shown embodiment, the first plane P1 is parallel to each of the longitudinal direction ld and the vertical direction vd of the vehicle 2. According to a further embodiment, each of the angle between the first plane P1 and the longitudinal direction ld of the vehicle 2 and the angle between the first plane P1 and the vertical direction vd of the vehicle 2 can be less than 15 degrees or can be less than 10 degrees.

[0091] Furthermore, as indicated in Figure 3 and Figure 4 , the mounting part 9 of the first bracket b1 includes a first mounting section ms1. As indicated in Figure 4 , the first mounting section ms1 is planar in a second plane P2. According to the shown embodiment, the second plane is parallel to the longitudinal direction ld of the vehicle 2 and perpendicular to the vertical direction vd of the vehicle 2. According to a further embodiment, the angle between the second plane P2 and the longitudinal direction ld of the vehicle 2 can be less than 15 degrees, or can be less than 10 degrees, and wherein the angle between the second plane P2 and the vertical direction vd of the vehicle 2 can be in the range of 75 - 105 degrees, or can be in the range of 80 - 100 degrees.

[0092] Furthermore, as indicated in Figure 4As indicated, according to the illustrated embodiment, the first mounting portion 9 includes a plurality of holes h9. Each of the plurality of holes h9 is configured to receive a fastening element 4' for mounting an additional vehicle device 5 to the first bracket b1. Also in Figure 4 the fastening element 4' in the form of a bolt is schematically shown. The fastening element 4' can be attached to the first bracket b1 by being threaded into the threaded portion of the corresponding hole h9 of the first bracket b1. In other words, each of the holes h9 in the first mounting portion 9 of the first bracket b1 can be a threaded hole. According to another embodiment, the fastening element 4' can be attached to the first bracket b1 using a nut. In other words, according to such embodiments, each of the holes h9 in the first mounting portion 9 of the first bracket b1 can be a through hole.

[0093] As Figure 2 is visible, the frame assembly 40 of the vehicle 2 includes a second bracket b2. In addition, the main frame 1 includes a second elongated main frame member m2 extending in the longitudinal direction ld of the vehicle 2. Further, the sub-frame 3 includes a second sub-frame member s2 attached to the second elongated main frame member m2 via the second bracket b2. As Figure 2 is indicated, the second bracket b2 includes a second mounting portion 19 for mounting an additional vehicle device 5 to the second bracket b2 and thereby also to the main frame 1 and the sub-frame 3 of the vehicle 2.

[0094] In addition, as Figure 2 is visible, according to the illustrated embodiment, the second bracket b2 is arranged at the same longitudinal position on the vehicle 2 as the first bracket b1. The second bracket b2 has the same but mirror-image design and layout as the first bracket b1. In addition, the second elongated main frame member m2 has the same but mirror-image design and layout as the first elongated main frame member m1. Similarly, the second sub-frame member s2 has the same but mirror-image design and layout as the first sub-frame member s1.

[0095] The second bracket b2 is attached to the second elongated main frame member m2 and the second sub-frame member s2 in the same manner as described for attaching the first bracket b1 to the corresponding elongated main frame member m1 and the first sub-frame member s1. Therefore, for reasons of brevity and clarity, some features of the second bracket b2, the second elongated main frame member m2, and the second sub-frame member s2 are not further explained in detail herein.

[0096] In addition, according to Figure 2In the embodiment shown, the frame assembly 40 includes a third bracket b3 and a fourth bracket b4. The third bracket b3 is attached to the first elongated main frame member m1 of the main frame 1, while the fourth bracket b4 is attached to the second elongated main frame member m2 of the main frame 1. According to the shown embodiment, the fourth bracket b4 is arranged at the same longitudinal position on the vehicle 2 as the third bracket b3.

[0097] The third bracket b3 is also seen and indicated in Figure 3 . The third bracket b3 includes an attachment portion that includes a plurality of through-holes. For reasons of simplicity and clarity, the attachment portion and the plurality of through-holes of the third bracket b3 are not provided with reference numerals in Figure 3 . The attachment portion of the third bracket b3 is configured to be attached to the first elongated main frame member m1 by a plurality of fastening elements 4, each fastening element extending through a through-hole of the attachment portion of the third bracket b3 and into a hole provided in the first sub-frame member s1. The third bracket b3 can be attached to the first elongated main frame member m1 in the same manner as described above for attaching the first bracket b1 to the first elongated main frame member m1. Additionally, the fourth bracket b4 can be attached to the second elongated main frame member m2 in the same manner.

[0098] Each of the third bracket b3 and the fourth bracket b4 includes a mounting section provided with a plurality of holes, each hole being configured to receive a fastening element 4' for attaching an additional vehicle device 5 to the respective third bracket b3 and fourth bracket b4. The mounting section ms3 of the third bracket is indicated in Figure 3 . Each of the first bracket b1, the second bracket b2, the third bracket b3, and the fourth bracket b4 can be provided by molding. In other words, each of the first bracket b1, the second bracket b2, the third bracket b3, and the fourth bracket b4 can be a molded part, i.e., a part provided by a molding process. According to the shown embodiment, each of the first bracket b1, the second bracket b2, the third bracket b3, and the fourth bracket b4 is formed of a metal, such as steel.

[0099] As can be seen when comparing Figure 2 and Figure 3 , according to the shown embodiment, each mounting section ms1, ms3 of the first bracket b1, the second bracket b2, the third bracket b3, and the fourth bracket b4 is parallel to the longitudinal direction ld of the vehicle 2 and the lateral direction of the vehicle 2. Additionally, according to the shown embodiment, each mounting section ms1, ms3 of the first bracket b1, the second bracket b2, the third bracket b3, and the fourth bracket b4 has a surface normal pointing in a direction opposite to the vertical direction vd of the vehicle 2 indicated in Figure 2 , Figure 3 and Figure 4 . In other words, according to Figure 2 andFigure 3 In the embodiment shown, when the vehicle 2 is positioned at the intended use position on a flat horizontal support surface, the surface normals of the mounting sections ms1, ms3 of the first bracket b1, the second bracket b2, the third bracket b3 and the fourth bracket b4 point in a direction opposite to the local gravity vector. According to a further embodiment, the angle between the vertical direction vd of the vehicle 2 and the respective surface normals of the mounting sections ms1, ms3 of the first bracket b1, the second bracket b2, the third bracket b3 and the fourth bracket b4 may be less than 15 degrees, or may be less than 10 degrees.

[0100] In addition, according to Figure 2 and Figure 3 in the embodiment shown, each of the fifth bracket b5 and the sixth bracket b6 includes a mounting section provided with a plurality of holes, each of the plurality of holes being configured to receive a fastening element 4' for mounting a further vehicle device 5 to the respective fifth bracket b5 and sixth bracket b6. Figure 3 The mounting section ms5 of the fifth bracket b5 is indicated in

[0101] As seen in a comparison Figure 2 and ​ when comparing, according to the embodiment shown, each mounting section ms5 of the fifth bracket b5 and the sixth bracket b6 is parallel to the vertical direction ld of the vehicle 2 and the lateral direction of the vehicle 2, and perpendicular to the longitudinal direction ld of the vehicle 2. In addition, according to the embodiment shown, each mounting section ms5 of the fifth bracket b5 and the sixth bracket b6 has a surface normal pointing in the reverse movement direction rd of the vehicle 2. The reverse movement direction rd of the vehicle 2 is indicated in ​ In addition, according to a further embodiment, the angle between the reverse movement direction rd of the vehicle 2 and the respective surface normals of the mounting sections ms5 of the fifth bracket b5 and the sixth bracket b6 may be less than 15 degrees, or may be less than 10 degrees.

[0102] According to the embodiment shown, each of the fifth bracket b5 and the sixth bracket b6 is provided by a sheet metal material, such as steel. According to a further embodiment, each of the fifth bracket b5 and the sixth bracket b6 may be provided by molding. In other words, in such embodiments, each of the fifth bracket b5 and the sixth bracket b6 may be a molded part, i.e., a part provided by a molding process.

[0103] ​ A perspective view of a part of a frame assembly 40' according to some further embodiments is shown. [[ID=!27]] ​ The vehicle 2 shown in ​ may include a frame assembly 40' according to the embodiment shown in ​ and ​ .

[0104] Also in these embodiments, the frame assembly 40' includes a main frame 1, a sub-frame 3, and a first bracket b1'. As ​ seen, the main frame 1 includes a first elongate main frame member m1. The first elongate main frame member m1 extends in the longitudinal direction ld of the vehicle 2. As described above, the feature that the first elongate main frame member m1 extends in the longitudinal direction ld of the vehicle 2 may cover the case where the angle between the extension direction de of the first elongate main frame member m1 and the longitudinal direction ld of the vehicle 2 is less than 15 degrees or less than 10 degrees.

[0105] In addition, the sub-frame 3 includes a first sub-frame member s1'. According to the illustrated embodiment, the first sub-frame member s1' extends in the longitudinal direction ld of the vehicle 2. Thus, according to the illustrated embodiment, the first sub-frame member s1' may also be referred to as a first elongate sub-frame member. The feature that the first sub-frame member s1' extends in the longitudinal direction ld of the vehicle 2 may cover the case where the angle between the extension direction de' of the first sub-frame member s1' and the longitudinal direction ld of the vehicle 2 is less than 15 degrees or less than 10 degrees.

[0106] The extension direction de' of the first sub-frame member s1' and the extension direction de of the first elongate main frame member m1 are indicated in ​ and ​ According to the illustrated embodiment, the extension direction de' of the first sub-frame member s1 coincides with the extension direction de of the first elongate main frame member m1.

[0107] The first sub-frame member s1' is attached to the first elongate main frame member m1 via the first bracket b1'. In other words, the first bracket b1' attaches the first sub-frame member s1' to the first elongate main frame member m1. According to the illustrated embodiment, as seen with respect to the vertical direction vd of the vehicle 2, the first sub-frame member s1' is attached to the first elongate main frame member m1 at a position above the first elongate main frame member m1 of the main frame 1. In addition, the frame assembly 40' of the vehicle 2 includes a plurality of attachment members 15' that attach the first sub-frame member s1' to the first elongate main frame member m1. According to ​ the embodiment shown in ​ and ​ the frame assembly 40' includes two spring-loaded attachment members 15' of the type described above with reference to

[0108] The spring-loaded attachment member 15' is configured to connect the first sub-frame member s1' to the first elongate main frame member m1 in a less rigid manner, which means that they are arranged to allow some relative movement between the first sub-frame member s1' and the first elongate main frame member m1 in a direction parallel to the vertical direction vd of the vehicle 2. Each of the spring-loaded members 15' includes a plurality of springs arranged to be compressed when the relative distance between the first sub-frame member s1' and the first elongate main frame member m1 increases in a direction parallel to the vertical direction vd of the vehicle 2. In this way, the spring-loaded attachment member 15' biases the first sub-frame member s1' towards the first elongate main frame member m1 in the vertical direction vd of the vehicle 2.

[0109] According to ​ the embodiment shown, the sub-frame 3 includes a third sub-frame member s1". The third sub-frame member s1" extends in the longitudinal direction ld of the vehicle 2. Thus, according to the shown embodiment, the third sub-frame member s1" can also be referred to as the third elongate sub-frame member. The feature that the third sub-frame member s1" extends in the longitudinal direction ld of the vehicle 2 can cover an angle between the extension direction of the third sub-frame member s1" and the longitudinal direction ld of the vehicle 2 being less than 15 degrees or less than 10 degrees.

[0110] The third sub-frame member s1" can have the same design and layout as the first sub-frame member s1' referred to above with reference to ​ and ​ explained. According to ​ the embodiment shown, the frame assembly 40' includes a plurality of attachment members 15, 17 for attaching the third sub-frame member s1" to the first elongate main frame member m1. More specifically, the frame assembly 40' includes four rigid attachment members 17 and two spring-loaded attachment members 15. In ​ only two of the four rigid attachment members 17 are seen. However, all four rigid attachment members 17 are seen and indicated in ​ shown.

[0111] The rigid attachment members 17 are configured to connect the third sub-frame member s1" to the first elongate main frame member m1 in a rigid manner, which means that they are arranged to prevent relative movement between the third sub-frame member s1" and the first elongate main frame member m1 in a direction parallel to the vertical direction vd of the vehicle 2.

[0112] The spring-loaded attachment member 15 is configured to connect the third secondary frame member s1” to the first elongate main frame member m1 in a less rigid manner, which means that they are arranged to allow some relative movement between the third secondary frame member s1” and the first elongate main frame member m1 in a direction parallel to the vertical direction vd of the vehicle 2. Each of the spring-loaded members 15 of the spring-loaded attachment member 15 includes a plurality of springs arranged to be compressed when the relative distance between the third secondary frame member s1” and the first elongate main frame member m1 increases in a direction parallel to the vertical direction vd of the vehicle 2. In this way, the spring-loaded attachment member 15 biases the third secondary frame member s1” towards the first elongate main frame member m1 in the vertical direction vd of the vehicle 2.

[0113] According to a further embodiment, the frame assembly 40’ of the vehicle 2 may include a further plurality of rigid attachment members 17 for attaching the third secondary frame member s1” to the first elongate main frame member m1. Similarly, the frame assembly 40’ of the vehicle 2 may include a further plurality of spring-loaded attachment members 15 for attaching the third secondary frame member s1” to the first elongate main frame member m1.

[0114] ​ is shown ​ a side view of a part of the frame assembly 40’ shown in. Below, unless otherwise specified, reference will be made simultaneously to ​ , ​ and ​ .

[0115] As ​ and ​ indicate, the first bracket b1’ includes a mounting portion 9’ for mounting a further vehicle device 5 to the first bracket b1’. In ​ and ​ , the further vehicle device 5 is schematically shown as a dashed box. The further vehicle device 5 may be of the type of further vehicle device 5 explained above with reference to ​ .

[0116] Also in the embodiment shown in ​ and ​ , the first elongate main frame member m1 is formed as a beam having a U-shaped cross-section in a plane P4 perpendicular to the elongation direction de of the first elongate main frame member m1. The plane p4 is in ​It is indicated in [the relevant content]. In addition, also in these embodiments, the first sub-frame member s1' is formed as a beam having a U-shaped cross-section in a plane P4 perpendicular to the elongation direction de' of the first sub-frame member s1'. According to the illustrated embodiment, the elongation direction de' of the first sub-frame member s1' coincides with the elongation direction de of the first elongated main-frame member m1. In addition, the third sub-frame member s1" is formed as a beam having a U-shaped cross-section in a plane perpendicular to the elongation direction of the third sub-frame member s1".

[0117] As ​ indicated in [the relevant content], the first bracket b1' includes a first attachment portion a1' and a second attachment portion a2' each including a plurality of through-holes h1', h2'. The first attachment portion a1' is configured to be attached to the first elongated main-frame member m1 by a plurality of fastening elements 4, each fastening element extending through the through-hole h1' of the first attachment portion a1' and into a hole provided in the first elongated main-frame member m1. For reasons of simplicity and clarity, ​ the holes provided in the first elongated main-frame member m1 are not indicated in [the relevant content].

[0118] In ​ [the relevant content], the fastening element 4 in the form of a bolt is schematically shown. According to the illustrated embodiment, the first attachment portion a1' is configured to be attached to the first elongated main-frame member m1 by a plurality of fastening elements 4, each fastening element extending through the through-hole h1' of the first attachment portion a1' and through a hole provided in the first elongated main-frame member m1, wherein the fastening element 4 is fixed relative to the first attachment portion a1' and the first elongated main-frame member m1 by a nut threaded onto a threaded portion of the corresponding fastening element 4.

[0119] According to another embodiment, the holes provided in the first elongated main-frame member m1 may be threaded, wherein the first attachment portion a1' is fixed relative to the first elongated main-frame member m1 by being threadedly connected to the threaded holes of the first main-frame member m1 by the threaded portions of the fastening elements.

[0120] As understood from the above, in ​ [the relevant content], the frame assembly 40' is shown in a partially assembled state, in which no fastening element 4 is inserted into the through-hole h1' of the first attachment portion a1'. However, when the frame assembly 40' is in a fully assembled state, the first attachment portion a1' is attached to the first elongated main-frame member m1 by a plurality of fastening elements 4 each extending through the through-hole h1' of the first attachment portion a1'.

[0121] Similarly, the second attachment part a2' is configured to be attached to the first secondary frame member s1' by a plurality of fastening elements 4, each fastening element extending through a through-hole h2' of the second attachment part a2' and into a hole provided in the first secondary frame member s1'. For reasons of simplicity and clarity, ​ the holes provided in the first secondary frame member s1' are not indicated in ​ .

[0122] According to the illustrated embodiment, the second attachment part a2' is configured to be attached to the first secondary frame member s1' by a plurality of fastening elements 4, each fastening element extending through a through-hole h2' of the second attachment part a2' and through a hole provided in the first secondary frame member s1', wherein the fastening element 4 is fixed relative to the second attachment part a2' and the first secondary frame member s1' by a nut screwed onto a threaded portion of the corresponding fastening element 4.

[0123] According to a further embodiment, the hole provided in the first secondary frame member s1' may be threaded, wherein the second attachment part a2' is fixed relative to the first secondary frame member s1' by screwing the threaded portion of the fastening element into a threaded hole of the first main frame member m1.

[0124] In ​ the partially assembled state shown in ​ , no fastening element 4 is inserted into the through-hole h2' of the second attachment part a2'. However, when the frame assembly 40' is in the fully assembled state, the second attachment part a2' is attached to the first secondary frame member s1' by a plurality of fastening elements 4 each extending through the through-hole h2' of the second attachment part a2'.

[0125] According to ​ the embodiment shown in ​ , the first bracket b1' includes a third attachment part a3 configured to be attached to the third secondary frame member s1'' by a plurality of fastening elements 4, each fastening element extending through a through-hole h3 of the third attachment part a3 and into a hole provided in the third secondary frame member s1''. For reasons of simplicity and clarity, ​ the holes provided in the third secondary frame member s1'' are not indicated in <000,0373>.

[0126] According to the illustrated embodiment, the third attachment part a3 is configured to be attached to the third secondary frame member s1'' by a plurality of fastening elements 4, each fastening element extending through a through-hole h3 of the third attachment part a3 and through a hole provided in the third secondary frame member s1, wherein the fastening element 4 is fixed relative to the third attachment part a3 and the third secondary frame member s1'' by a nut screwed onto a threaded portion of the corresponding fastening element 4.

[0127] According to a further embodiment, the hole provided in the third secondary frame member s1” may be threaded, wherein the third attachment portion a3 is threadedly connected to the threaded hole of the third secondary frame member s1” by the threaded portion of the fastening element and is fixed relative to the third secondary frame member s1”.

[0128] Thus, in general, when the frame assembly 40’ is in a fully assembled state, the first attachment portion a1’ of the first bracket b1’ is attached to the first elongate main frame member m1, the second attachment portion a2’ of the first bracket b1’ is attached to the first secondary frame member s1’, and the third attachment portion a3 of the first bracket b1’ is attached to the third secondary frame member s1”.

[0129] ​ A perspective view of the first bracket b1’ of the frame assembly 40’ according to the embodiment shown in ​ and ​ is shown. Hereinafter, unless otherwise specified, reference will be made simultaneously to ​ 、 ​ .

[0130] In ​ , the longitudinal direction ld and the vertical direction vd of the vehicle 2 are indicated, and ​ the first bracket b1’ shown in is shown in the intended mounting orientation relative to these directions.

[0131] As indicated in ​ , according to the shown embodiment, each of the first attachment portion a1’, the second attachment portion a2’ and the third attachment portion a3 of the first bracket b1’ is plate-like in a first plane P1. Further, as visible in ​ , according to the shown embodiment, the first plane P1 is parallel to each of the longitudinal direction ld and the vertical direction vd of the vehicle 2. According to a further embodiment, each of the angle between the first plane P1 and the longitudinal direction ld of the vehicle 2 and the angle between the first plane P1 and the vertical direction vd of the vehicle 2 may be less than 15 degrees or may be less than 10 degrees.

[0132] Furthermore, as indicated in ​ and ​ , the mounting portion 9’ of the first bracket b1’ includes a first mounting section ms1’. As ​As indicated, the first mounting section ms1’ is planar in the second plane P2. According to the illustrated embodiment, the second plane P2 is parallel to the longitudinal direction ld of the vehicle 2 and perpendicular to the vertical direction vd of the vehicle 2. According to another embodiment, the angle between the second plane P2 and the longitudinal direction ld of the vehicle 2 may be less than 15 degrees, or may be less than 10 degrees, and wherein the angle between the second plane P2 and the vertical direction vd of the vehicle 2 may be in the range of 75 - 105 degrees, or may be in the range of 80 - 100 degrees.

[0133] In addition, as ​ indicated, according to the illustrated embodiment, the first mounting part 9’ includes a plurality of holes h9’. Each of the plurality of holes h9’ is configured to receive a fastening element 4’ for mounting another vehicle device 5 to the first bracket b1’.

[0134] According to ​ the embodiment shown in, the mounting part 9’ further includes a second mounting section ms2. The second mounting section ms2 is planar in the third plane P3. According to the illustrated embodiment, the angle between the third plane P3 and the longitudinal direction ld of the vehicle 2 is 90 degrees. In addition, according to the illustrated embodiment, the third plane p3 is parallel to the lateral direction of the vehicle 2. In other words, according to the illustrated embodiment, the angle between the second plane P2 and the third plane P3 is 90 degrees.

[0135] According to another embodiment, the angle between the third plane P3 and the longitudinal direction ld of the vehicle 2 may be in the range of 75 degrees to 105 degrees, or may be in the range of 80 degrees to 100 degrees. In addition, the angle between the second plane P2 and the third plane P3 may be in the range of 75 - 105 degrees, or may be in the range of 80 - 100 degrees. In addition, according to some embodiments, the angle between the third plane P3 and the lateral direction of the vehicle 2 may be less than 15 degrees or may be less than 10 degrees.

[0136] In addition, according to ​ the embodiment shown in, the second mounting section ms2 has a surface normal that coincides with the forward movement direction fd of the vehicle 2. According to another embodiment, the angle between the surface normal of the second mounting section ms2 and the forward movement direction fd of the vehicle 2 may be less than 15 degrees or may be less than 10 degrees.

[0137] As ​ indicated, the second mounting section ms2 includes a plurality of holes h9”. Each of the holes h9” is configured to receive a fastening element 4’ for mounting another vehicle device 5 to the first bracket b1’. Also in ​In [the figure], a fastening element 4' in the form of a bolt is schematically shown. The fastening element 4' can be attached to a first mounting section ms1' and a second mounting section ms2 of the first bracket b1' by being screwed into the corresponding threaded portions of holes h9', h9" of the first bracket b1'. In other words, each of the holes h9', h9" in the first mounting section ms1' and the second mounting section ms2 of the first bracket b1' can be a threaded hole. According to a further embodiment, the fastening element 4' can be attached to the first bracket b1' using a nut. In other words, according to such an embodiment, each of the holes h9', h9" in the first mounting section ms1' and the second mounting section ms2 of the first bracket b1' can be a through hole.

[0138] As ​ can be seen, the frame assembly 40' of the vehicle 2 includes a second bracket b2'. In addition, the main frame 1 includes a second elongated main frame member m2 extending in the longitudinal direction ld of the vehicle 2. In addition, the sub-frame 3 includes a second sub-frame member s2' attached to the second elongated main frame member m2 via the second bracket b2'. In addition, in these embodiments, the sub-frame 3 includes a fourth sub-frame member s2" attached to the second elongated main frame member m2 via the second bracket b2'. As ​ indicated, the second bracket b2' includes a second mounting portion 19' for mounting an additional vehicle device 5 to the second bracket b2', and thus also to the main frame 1 and the sub-frame 3 of the vehicle 2.

[0139] In addition, as ​ can be seen, according to the illustrated embodiment, the second bracket b2' is arranged at the same longitudinal position on the vehicle 2 as the first bracket b1'. The second bracket b2' has the same but mirror-image design and layout as the first bracket b1'. In addition, the second elongated main frame member m2 has the same but mirror-image design and layout as the first elongated main frame member m1. Similarly, the second sub-frame member s2' has the same but mirror-image design and layout as the first sub-frame member s1'. In addition, the fourth sub-frame member s2" has the same but mirror-image design and layout as the third sub-frame member s1".

[0140] The second bracket b2' is attached to the second elongated main frame member m2 and the second sub-frame member s2' in the same manner as described for attaching the first bracket b1' to the corresponding elongated main frame member m1 and the first sub-frame member s1'. Therefore, for reasons of brevity and clarity, some features of the second bracket b2', the second elongated main frame member m2, and the second sub-frame member s2' are not explained in detail herein.

[0141] In addition, according to ​In the embodiment shown, the frame assembly 40' includes a third bracket b3' and a fourth bracket b4'. The third bracket b3' is attached to the first sub-frame member s1', and the fourth bracket b4' is attached to the second sub-frame member s2'. According to the shown embodiment, the fourth bracket b4' is arranged at the same longitudinal position on the vehicle 2 as the third bracket b3'.

[0142] The third bracket b3' is also seen and indicated in ​ . The third bracket b3' includes an attachment portion that includes a plurality of through-holes. For reasons of simplicity and clarity, the attachment portion and the plurality of through-holes of the third bracket b3' are not provided with reference numerals in ​ . The attachment portion of the third bracket b3' is configured to be attached to the first sub-frame member s1' by a plurality of fastening elements 4, each fastening element extending through a through-hole of the attachment portion of the third bracket b3' and into a hole provided in the first sub-frame member s1'. The third bracket b3' can be attached to the first sub-frame member s1' in the same manner as described above for attaching the first bracket b1' to the first elongated main-frame member m1. In addition, the fourth bracket b4' can be attached to the second sub-frame member s2' in the same manner.

[0143] Each of the third bracket b3' and the fourth bracket b4' includes a mounting section provided with a plurality of holes, each hole being configured to receive a fastening element 4' for attaching another vehicle device 5 to the respective third bracket b3' and fourth bracket b4'. The mounting section ms3' of the third bracket is indicated in ​ . Each of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' can be provided by molding. In other words, each of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' can be a molded part, i.e., a part provided by a molding process. According to the shown embodiment, each of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' is formed of a metal, such as steel.

[0144] As seen in comparing ​ and ​ , according to the shown embodiment, each mounting section ms1', ms3' of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' is parallel to the longitudinal direction ld of the vehicle 2 and the lateral direction of the vehicle 2. In addition, according to the shown embodiment, each mounting section ms1', ms3' of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' has a direction pointing to ​ , ​ and ​The surface normal in a direction opposite to the vertical direction vd of the vehicle 2 as indicated. In other words, according to these embodiments, when the vehicle 2 is positioned at the intended use position on a flat horizontal support surface, the surface normals of the mounting sections ms1', ms3' of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' point in a direction opposite to the local gravity vector. According to further embodiments, the angle between the vertical direction vd of the vehicle 2 and the respective surface normals of the mounting sections ms1', ms3' of the first bracket b1', the second bracket b2', the third bracket b3' and the fourth bracket b4' can be less than 15 degrees, or can be less than 10 degrees.

[0145] Furthermore, according to ​ and ​ the embodiments shown in, each of the fifth bracket b5 and the sixth bracket b6 includes a mounting section provided with a plurality of holes, each of the plurality of holes being configured to receive fastening elements 4' for mounting additional vehicle devices 5 to the respective fifth bracket b5 and sixth bracket b6. The mounting section ms5' of the fifth bracket b5 is indicated in ​ as shown.

[0146] As can be seen when comparing ​ and ​ in accordance with the embodiments shown, for each mounting section ms5' of the fifth bracket b5 and the sixth bracket b6 is parallel to the vertical direction ld of the vehicle 2 as well as the lateral direction of the vehicle 2 and perpendicular to the longitudinal direction ld of the vehicle 2. Furthermore, according to the embodiments shown, each mounting section ms5' of the fifth bracket b5 and the sixth bracket b6 has a surface normal pointing in the reverse movement direction rd of the vehicle 2. The reverse movement direction rd of the vehicle 2 is indicated in ​ as shown. According to further embodiments, the angle between the reverse movement direction rd of the vehicle 2 and the respective surface normals of the mounting sections ms5' of the fifth bracket b5 and the sixth bracket b6 can be less than 15 degrees, or can be less than 10 degrees.

[0147] According to the embodiments shown, each of the fifth bracket b5 and the sixth bracket b6 is provided by a sheet metal material, such as steel. According to further embodiments, each of the fifth bracket b5 and the sixth bracket b6 can be provided by molding. In other words, in such embodiments, each of the fifth bracket b5 and the sixth bracket b6 can be a molded part, i.e., a part provided by a molding process.

[0148] According to some embodiments, the first sub-frame member s1' and the third sub-frame member s1'' can be provided as one continuous part. According to such embodiments, the first bracket b_{1}' may not have a third attachment part a3.

[0149] Since the first bracket b1' attaches the first sub-frame member s1' to the first elongated main-frame member m1 and includes an attachment portion 9' for attaching additional vehicle devices 5 to the first bracket b1', conditions are provided that allow various types of additional vehicle devices 5 to be attached to the main frame 1 and the sub-frame 3 in a quick, simple, and rigid manner via the attachment portion 9' of the first bracket b1' when changing the type of additional vehicle device 5 attached to the main frame 1 and the sub-frame 3 without having to re-design one or more of the main frame 1, the sub-frame 3, and the first bracket b1'.

[0150] In addition, since the first bracket b1' attaches the first sub-frame member s1' to the first elongated main-frame member m1 and includes an attachment portion 9 for attaching additional vehicle devices 5 to the first bracket b1', conditions are provided for the space-efficient attachment of the additional vehicle devices 5 to the first bracket b1' and thus also to the main frame 1 and the sub-frame 3. In other words, due to these features, a vehicle 2 is provided that has conditions for alleviating loading problems.

[0151] In addition, since the first bracket b1' attaches the first sub-frame member s1' to the first elongated main-frame member m1 and includes an attachment portion 9' for attaching additional vehicle devices 5 to the first bracket b1', the tension between the components and devices of the vehicle 2 can be reduced, such as the tension between the components and devices attached to the first sub-frame member s1'. Additionally, a more uniform load distribution can be provided between the first sub-frame member s1' and the first elongated main-frame member m1, which can also reduce tension and the occurrence of unwanted chassis vibrations. That is, by connecting the first sub-frame member s1' to the first elongated main-frame member m1 and by connecting the third sub-frame member s1" to the first elongated main-frame member m1 via the first bracket b1', the first sub-frame member s1' and the third sub-frame member s1" can be better utilized to strengthen the frame assembly 40' in order to reduce the tension and the occurrence of unwanted chassis vibrations.

[0152] As can be understood from the description herein, the fastening elements 4, 4' mentioned herein can be included in the frame assemblies 40, 40' and in the vehicle 2 including the frame assemblies 40, 40'.

[0153] It should be understood that the above is illustrative of various exemplary embodiments and that the invention is defined only by the appended independent claims. Those skilled in the art will recognize that the exemplary embodiments can be modified without departing from the scope of the invention defined by the appended independent claims and that different features of the exemplary embodiments can be combined to produce embodiments other than those described herein.

[0154] As used herein, the term "comprising" is open-ended and includes one or more of the stated features, elements, steps, components or functions, but does not preclude the presence or addition of one or more other features, elements, steps, components, functions or groups thereof.

Claims

1. A vehicle (2), comprising a main frame (1), a sub-frame (3) and a first bracket (b1, b1'), wherein the main frame (1) comprises a first elongated main frame member (m1) extending in the longitudinal direction (ld) of the vehicle (2), and the sub-frame (3) comprises a first sub-frame member (s1, s1') attached to the first elongated main frame member (m1) via the first bracket (b1, b1'), and wherein the first bracket (b1, b1') comprises a mounting portion (9, 9') for mounting additional vehicle devices (5) to the first bracket (b1, b1').

2. The vehicle (2) according to claim 1, wherein, as seen in the vertical direction (vd) of the vehicle (2), the first sub-frame member (s1, s1') is attached to the first elongated main frame member (m1) at a position above the main frame (1).

3. The vehicle (2) according to claim 1 or 2, wherein the first sub-frame member (s1, s1') extends in the longitudinal direction (ld) of the vehicle (2).

4. The vehicle (2) according to any one of the preceding claims, wherein the first bracket (b1, b1') comprises a first attachment portion (a1, a1') and a second attachment portion (a2, a2') each comprising a plurality of through-holes (h1, h2, h1', h2'), wherein the first attachment portion (a1, a1') is attached to the first elongated main frame member (m1) by a plurality of fastening elements (4) each extending through the through-holes (h1, h1') of the first attachment portion (a1, a1'), and wherein the second attachment portion (a2, a2') is attached to the first sub-frame member (s1, s1') by a plurality of fastening elements (4) each extending through the through-holes (h2, h2') of the second attachment portion (a2, a2').

5. The vehicle (2) according to any one of the preceding claims, wherein the first bracket (b1, b1') comprises a first attachment portion (a1, a1') attached to the first elongated main frame member (m1) and a second attachment portion (a2, a2') attached to the first sub-frame member (s1, s1'), and wherein each of the first attachment portion and the second attachment portion (a1, a2, a1', a2') of the first bracket (b1, b1') is plate-shaped in a first plane (P1), and wherein each of the angle between the first plane (P1) and the longitudinal direction (ld) of the vehicle (2) and the angle between the first plane (P1) and the vertical direction (vd) of the vehicle (2) is less than 15 degrees or less than 10 degrees.

6. The vehicle (2) according to any one of the preceding claims, wherein the mounting part (9, 9') comprises a first mounting section (ms1, ms1'), and wherein the first mounting section (ms1, ms1') is planar in a second plane (P2), wherein the angle between the second plane (P2) and the longitudinal direction (ld) of the vehicle (2) is less than 15 degrees or less than 10 degrees, and wherein the angle between the second plane (P2) and the vertical direction (vd) of the vehicle (2) is in the range of 75 - 105 degrees or in the range of 80 - 100 degrees.

7. The vehicle (2) according to any one of the preceding claims, wherein the first mounting part (9, 9') comprises a plurality of holes (h9, h9', h9"), each of the plurality of holes being configured to receive a fastening element (4') for mounting the additional vehicle device (5) to the first bracket (b1, b1').

8. The vehicle (2) according to any one of the preceding claims, wherein the vehicle (2) comprises a second bracket (b2, b2'), wherein the main frame (1) comprises a second elongated main frame member (m2) extending in the longitudinal direction (ld) of the vehicle (2), and wherein the sub-frame (3) comprises a second sub-frame member (s2, s2') attached to the second elongated main frame member (m2) via the second bracket (b2, b2'), wherein the second bracket (b2, b2') comprises a second mounting part (19, 19') for mounting the additional vehicle device (5) to the second bracket (b2, b2').

9. The vehicle (2) according to claim 8, wherein the second bracket (b2, b2') is arranged at the same longitudinal position on the vehicle (2) as the first bracket (b1, b1').

10. The vehicle (2) according to claim 8 or 9, wherein the second bracket (b2, b2') has the same but mirror-image design and layout as the first bracket (b1, b1').

11. The vehicle (2) according to any one of the preceding claims, wherein the mounting part (9') of the first bracket (b1') comprises a first mounting section (ms1'), the first mounting section being planar in a second plane (P2), wherein the angle between the second plane (P2) and the longitudinal direction (ld) of the vehicle (2) is less than 15 degrees or less than 10 degrees, and wherein the angle between the second plane (P2) and the vertical direction (vd) of the vehicle (2) is in the range of 75 - 105 degrees or in the range of 80 - 100 degrees, and wherein the mounting part (9') further comprises a second mounting section (ms2), the second mounting section being planar in a third plane (P3), wherein the third plane (P3) is angled with respect to the second plane (P2).

12. The vehicle (2) according to claim 11, wherein the angle between the third plane (P3) and the longitudinal direction (ld) of the vehicle (2) is in the range of 75 - 105 degrees or in the range of 80 - 100 degrees.

13. The vehicle (2) according to claim 11 or 12, wherein the second mounting section (ms2) includes a plurality of holes (h9”), each of the plurality of holes being configured to receive fastening elements (4’) for mounting the additional vehicle device (5) to the first bracket (b1’).

14. The vehicle (2) according to any one of the preceding claims, wherein the sub-frame (3) includes a third sub-frame member (s1”), and wherein the first bracket (b1’) includes a third attachment portion (a3) attached to the third sub-frame member (s1”).

15. The vehicle (2) according to claim 14, wherein the third attachment portion (a3) of the first bracket (b1’) is plate-shaped in a first plane (P1), wherein each of the angle between the first plane (P1) and the longitudinal direction (ld) of the vehicle (2) and the angle between the first plane (P1) and the vertical direction (vd) of the vehicle (2) is less than 15 degrees or less than 10 degrees.

16. The vehicle (2) according to any one of the preceding claims, wherein the first elongated main frame member (m1) is formed as a beam having a U-shaped cross-section in a plane (P4) perpendicular to the elongation direction (de) of the first elongated main frame member (m1).

17. The vehicle (2) according to any one of the preceding claims, wherein the first sub-frame members (s1, s1’) are formed as beams having a U-shaped cross-section in a plane (P4) perpendicular to the elongation direction (de’) of the first sub-frame members (s1, s1’).

18. The vehicle (2) according to any one of the preceding claims, wherein the additional vehicle device (5) is configured to supply energy to the propulsion system (10) of the vehicle (2).

19. The vehicle (2) according to any one of the preceding claims, wherein the additional vehicle device (5) includes at least one of a propulsion battery, a fuel gas tank, and a pantograph.

20. The vehicle (2) according to any one of the preceding claims, wherein the additional vehicle device (5) includes a power output assembly.

21. The vehicle (2) according to any one of the preceding claims, wherein the vehicle (2) is a heavy-duty road vehicle, such as a truck or a bus.

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