Axle brake module, brake device, motor vehicle, vehicle trailer

Abstract

The embodiments of this disclosure relate to axle braking modules, braking devices, motor vehicles, and vehicle trailers. The present invention relates to an axle braking module for a braking device of a motor vehicle or vehicle trailer, having two, particularly exactly two, operable wheel brakes for decelerating the motor vehicle or vehicle trailer, wherein each wheel brake is respectively assignable to / already assigned to another wheel of the same axle of the motor vehicle or vehicle trailer, and having one, particularly exactly one, operable braking force generator, wherein the braking force generator is configured to deliver hydraulic fluid to at least one hydraulic braking circuit to generate braking pressure on each wheel brake. According to the invention, the axle braking module has a common hydraulic braking circuit or two hydraulic braking circuits respectively assigned to one of the wheel brakes, each acting as a hydraulically closed braking circuit, such that the braking circuit is assigned only to the axle braking module (1).

Description

Technical Field

[0001] The present invention relates to an axle braking module for a braking device of a motor vehicle or vehicle trailer, having two, particularly exactly two, operable wheel brakes for decelerating the motor vehicle or vehicle trailer, wherein each of the wheel brakes is respectively assignable to / already assigned to another wheel of the same axle of the motor vehicle or vehicle trailer; and having one, particularly exactly one, operable braking force generator, wherein the braking force generator is configured to deliver hydraulic fluid to at least one hydraulic braking circuit to generate braking pressure on each wheel brake.

[0002] Furthermore, the present invention also relates to a braking device having such an axle braking module, and a motor vehicle and a vehicle trailer having such a braking device respectively. Background Technology

[0003] The type of axle braking module described at the beginning is known in the prior art. For example, publication DE 10 2010 044501 A1 discloses a hydraulic braking system for a motor vehicle having at least four wheels, wherein each wheel is equipped with its own brake, wherein two of each brake, separated according to the front and rear axles, are equipped with a common electromechanical brake booster, which is connected to a hydraulic control unit configured to independently supply hydraulic braking medium provided by the brake booster to the two corresponding brakes for selective braking force distribution.

[0004] Publication DE 101 18 263 A1 discloses an electronic control system for vehicle braking equipment, comprising a driver expectation module for detecting driver braking expectations and at least two brake circuit modules for controlling wheel brakes. Each brake circuit module is equipped with at least one electrically operable brake actuator, and each brake actuator is equipped with an electronic unit for performing actuator-specific manipulation and / or sensor-specific analysis and evaluation functions. In particular, the actuators for controlling the wheel brakes are integrated into an axle module. Here, each axle module includes two brake actuators. Summary of the Invention

[0005] The axle brake module according to the invention, having features according to claim 1, is characterized in that it has a common hydraulic brake circuit or two hydraulic brake circuits, each assigned to one of the wheel brake devices, acting as hydraulically closed brake circuits, such that the brake circuit is assigned only to the axle brake module. With the construction of the axle brake module according to the invention, the corresponding axle of the motor vehicle is assigned a separate, independent brake circuit. The axle brake module does not require any external hydraulic connection. If multiple axle brake modules are provided, particularly one axle brake module for each axle of the motor vehicle, these axle brake modules are electrically connected to each other, but not hydraulically connected, for operation via a higher-level control logic. The resulting advantage is that the braking device is modularly constructed and can be pre-assembled independently of the motor vehicle assembly. In particular, it eliminates the need for the usual filling of hydraulic brake circuits within the vehicle, which would otherwise only be done after the braking device is fully assembled, because the axle brake module is a hydraulically closed system and thus has already been advantageously filled in advance. In this regard, the axle braking module is an advantageous alternative to the known axle braking module described at the beginning, which, although having at least one brake force generator for each axle, does not explicitly correspond to its own hydraulic closed braking circuit and, in particular, utilizes a common brake fluid reservoir.

[0006] According to a preferred extension of the invention, the braking force generator has a controllable first actuator and a first hydraulic piston coupled to the first actuator and movable within a brake cylinder, wherein a first piston chamber enclosed by the first hydraulic piston is fluidly technically connectable to / connected to the hydraulic braking circuit or the first hydraulic braking circuit therein. Using such an actuator with a hydraulic piston provides an advantageous possibility of reliably supplying hydraulic fluid to the corresponding hydraulic braking circuit of the axle braking module. The brake cylinder is then constructed as a simple master brake cylinder.

[0007] Particularly preferably, the braking force generator has a second hydraulic piston elastically coupled to the first hydraulic piston and movable within the brake cylinder. The second piston chamber, enclosed by the second hydraulic piston, is fluidly technically connected to / has been connected to a second hydraulic braking circuit therein, and each of the hydraulic braking circuits is assigned to another wheel brake. The advantage of using two such coupled hydraulic pistons is that each wheel brake is assigned to / has been assigned to its own hydraulic piston. The brake cylinder is then configured as a tandem master brake cylinder.

[0008] According to a preferred extension of the invention, the axle braking module has a hydraulic pump in the hydraulic braking circuit or a corresponding hydraulic braking circuit, or each has a hydraulic pump, wherein the hydraulic pump or corresponding hydraulic pump is assigned to the wheel braking device. The use and assignment of the hydraulic pump or corresponding hydraulic pump enables an advantageous possibility of supplying hydraulic fluid to the corresponding wheel braking device as needed.

[0009] Particularly preferably, the shaft brake module has at least one operable second actuator, which is associated with a corresponding hydraulic pump or jointly associated with multiple hydraulic pumps. The second actuator enables the advantageous possibility of precisely manipulating the hydraulic pump or its corresponding hydraulic pump to control the fluid volume.

[0010] According to a preferred extension of the invention, the axle braking module has an inlet valve and an outlet valve in the hydraulic braking circuit or a corresponding hydraulic braking circuit, wherein each wheel braking device is equipped with one inlet valve and one outlet valve respectively. The inlet and outlet valves enable an advantageous possibility of precisely controlling the hydraulic pressure on the corresponding wheel braking device.

[0011] Particularly preferably, the hydraulic pump, or the corresponding hydraulic pump, is fluidly connected / has been connected to the corresponding wheel braking device on the inlet side via a corresponding outlet valve. Connecting the hydraulic pump on the inlet side allows for the advantageous possibility of reducing hydraulic pressure as needed, particularly simply by controlling the hydraulic pump.

[0012] According to a preferred extension of the invention, the axle braking module has a main switching valve in the hydraulic braking circuit or a corresponding hydraulic braking circuit, wherein the main switching valve or the corresponding main switching valve is assigned to a corresponding piston chamber, through which the hydraulic pump is fluidly connected / has been fluidly connected to the corresponding piston chamber at the inlet side. The main switching valve enables an advantageous possibility of reliably isolating or connecting the piston chamber to the braking circuit.

[0013] The braking device for a motor vehicle or vehicle trailer having the features of claim 9 is characterized by its ability to be assigned to / already assigned to the axle of the motor vehicle or vehicle trailer, particularly the first axle, using a first axle brake module constructed according to the invention. This results in the aforementioned advantages.

[0014] Particularly preferably, the braking device has a second axle braking module according to the invention, which can be assigned to / has been assigned to another axle of the motor vehicle or vehicle trailer, particularly a second axle, and is constructed differently from the first axle braking module. An advantage of using at least one second axle braking module is that the braking device is constructed modularly by axle from at least two hydraulic modules.

[0015] According to a preferred extension of the invention, the braking device has two electromechanical wheel braking modules, each capable of being assigned to / already assigned to another wheel of another axle of a motor vehicle or vehicle trailer, particularly a second or third axle. These electromechanical wheel braking modules are particularly identically constructed, each having a controllable actuator for generating braking force. The use of two wheel braking modules advantageously ensures that the braking device is constructed as a hybrid system consisting of at least one hydraulic (wet) module and two electromechanical (dry) modules.

[0016] Particularly preferably, the braking device has at least one control unit specifically designed to coordinately operate the axle braking module or all braking modules, particularly the axle braking module and / or the wheel braking modules. The advantage of such a control unit is that the braking device is generally robustly operated. If multiple modules as described above exist, the control unit is responsible for the overall coordinated operation of the modules.

[0017] The motor vehicle having the features of claim 13 is characterized by the braking device according to the invention. The aforementioned advantages are also obtained therefrom. In particular, the motor vehicle is part of a vehicle assembly having at least one vehicle trailer. The vehicle trailer, in particular, has at least one additional axle braking module according to the invention.

[0018] The vehicle trailer having the features of claim 14 is characterized by the braking device according to the invention. The aforementioned advantages are thus also obtained.

[0019] Further preferred features and combinations thereof are derived from the foregoing description and claims. The invention is described in more detail below with reference to the accompanying drawings. Herein lies: Attached Figure Description

[0020] Figure 1 A first embodiment of an advantageous shaft braking module,

[0021] Figure 2 The second embodiment of the shaft braking module,

[0022] Figure 3 The third embodiment of the shaft braking module,

[0023] Figure 4 The fourth embodiment of the shaft braking module, and

[0024] Figure 5 Motor vehicles or vehicle trailers having at least one axle braking module. Detailed Implementation

[0025] Figures 1 to 4 Different embodiments of the advantageous shaft braking module 1 are shown respectively. Figure 1 The first embodiment is shown. Figure 2 The second embodiment is shown. Figure 3 The third embodiment is shown. Figure 4 The fourth embodiment of the shaft braking module 1 is shown.

[0026] Wherever possible and meaningful, similar parts are given the same reference numerals and are described together below. Distinctions are indicated where appropriate. Axle brake module 1 is a component of the braking device 2 of the motor vehicle 3 or the vehicle trailer 4.

[0027] exist Figure 5 The illustration exemplarily shows one embodiment of a motor vehicle 3 or a vehicle trailer 4, wherein the motor vehicle 3 or vehicle trailer 4 has a braking device 2 and a first axle 5, such as a front axle, and a second axle 6, such as a rear axle. However, the embodiment with two axles 5 and 6 is merely exemplary, and in particular, only one axle (in the case of a vehicle trailer) or multiple axles, such as an additional third axle (possibly possible in the case of motor vehicle 3 and vehicle trailer 4), are provided. Here, each axle 5 and 6 has two wheels 7.

[0028] The axle braking module 1 has an operable first wheel brake 8 and an operable second wheel brake 9 for decelerating the motor vehicle 3 or the vehicle trailer 4. The wheel brakes 8 and 9 are currently constructed as common hydraulically operable friction brakes and therefore have at least two friction mating parts, particularly brake pads and brake discs. One friction mating part, such as a brake pad, is movably supported toward the other friction mating part, such as a brake disc.

[0029] Each of wheel braking devices 8 and 9 can be assigned to or as... Figure 5 The other wheel 7 is assigned to the same axle 5 or 6 of the motor vehicle 3 or the trailer 4.

[0030] The special feature of each axle braking module 1 is that it has only two wheel braking devices 8 and 9, and the axle braking module 1 is otherwise constructed to be hydraulically closed, that is, it does not have a hydraulic connection with other wheel braking devices.

[0031] For this purpose, each axle braking module 1 has another, currently exactly one, operable braking force generator 10. The braking force generator 10 is configured to deliver hydraulic fluid to at least one hydraulic braking circuit to generate braking pressure on the corresponding wheel braking devices 8, 9. Currently, no mechanical actuation device, such as a driver-operable brake pedal, is provided. Such a mechanical actuation device may be provided according to another embodiment, not shown.

[0032] exist Figure 1 and Figure 2In the middle, the axle braking module 1 has a hydraulic braking circuit 11 that is jointly assigned to the two wheel braking devices 8 and 9. The hydraulic braking circuit 11 is constructed as a hydraulically closed braking circuit, so that the braking circuit is assigned only to the axle braking module 1.

[0033] exist Figure 3 and Figure 4 In the axle braking module 1, there is a first hydraulic braking circuit 11 assigned to the first wheel braking device 8 and a second hydraulic braking circuit 12 assigned to the second wheel braking device 9. Each hydraulic braking circuit 11 and 12 is configured as a hydraulically closed braking circuit, such that the corresponding braking circuit is assigned only to the axle braking module 1.

[0034] exist Figures 1 to 4 In this embodiment, the braking force generator 10 has a controllable first actuator 13 and a first hydraulic piston 14 coupled to the actuator 13. The actuator 13 is currently configured as an electric motor and is coupled to the hydraulic piston 14, for example, via a transmission assembly not shown in detail.

[0035] Actuator 13 is equipped with rotor position sensor 26 for the rotor position of the motor rotor shaft. Hydraulic piston 14 is movably arranged in brake cylinder 15 and elastically preloaded in brake cylinder 15 on one side.

[0036] The first piston chamber 16, which is sealed within the brake cylinder 15 by the first hydraulic piston 14, is fluidly coupled / has been coupled to the first hydraulic brake circuit 11. In the accompanying drawings, the corresponding coupling is indicated by the connector connection S1.

[0037] exist Figure 3 and Figure 4 In this device, the braking force generator 10 additionally has a second hydraulic piston 17 elastically coupled to the first hydraulic piston 14. The second hydraulic piston 17 is also movably arranged in the brake cylinder 15 and elastically preloaded in the brake cylinder 15 on both sides.

[0038] The second piston chamber 18, sealed by the second hydraulic piston 17, is fluidly coupled / has been coupled to the second hydraulic braking circuit 12. In the accompanying drawings, the corresponding coupling is indicated by the connector connection S2.

[0039] Each axle braking module 1 also has another reservoir 19 for hydraulic fluid. Reservoir 19 has at least one first chamber 20 and... Figure 3 and Figure 4 It has an additional second chamber 21, wherein the second chamber 21 is fluidly separated from the first chamber 20, at least regionally, for example by a partition plate.

[0040] The reservoir 19 is fluidly connected or has been connected to the corresponding piston chambers 16 and 18 via at least one hydraulic line 22, 23. Check valves 24 and 25 are arranged in each hydraulic line 22, 23.

[0041] Specifically, the first piston chamber 16 is connectable / already connected to the first chamber 20 via a first hydraulic line 22 having a first check valve 24, and... Figure 3 and Figure 4 In this configuration, the second piston chamber 18 is connected to the second chamber 21 via a second hydraulic line 23 having a second check valve 25.

[0042] Furthermore, the axle braking module 1 has a first hydraulic pump 27 in the first hydraulic braking circuit 11 and in Figures 2 to 4 In the first hydraulic braking circuit 11 ( Figure 2 In or in the second hydraulic braking circuit 12 ( Figure 3 and Figure 4 It has an additional second hydraulic pump 28.

[0043] exist Figure 1 In the middle, the first hydraulic pump 27 is correspondingly assigned to the wheel braking devices 8 and 9; in Figures 2 to 4 Correspondingly, the first hydraulic pump 27 is assigned to the first wheel brake device 8, and the second hydraulic pump 28 is assigned to the second wheel brake device 9.

[0044] Here, the shaft brake module 1 has at least one operable second actuator 29, which is associated with the first hydraulic pump 27. Figure 1 ) or jointly assigned to the first and second hydraulic pumps 27, 28 ( Figures 2 to 4 The actuator 29 is currently configured as an electric motor and is coupled to the hydraulic pump or the plurality of hydraulic pumps 27, 28, for example, via a transmission assembly not shown in detail. In particular, the corresponding pump impeller of each hydraulic pump 27, 28 is torsionally connected to the rotor shaft of the electric motor.

[0045] Furthermore, the shaft braking module 1 has two inlet valves 30 and 31 and two outlet valves 32 and 33. Each of the inlet valves 30 and 31 is equipped with a check valve 34 or 35 that is currently hydraulically connected in parallel with each other. At least one inlet valve 30 or 31 and an outlet valve 32 or 33 are arranged in each of the hydraulic braking circuits 11 and 12.

[0046] Each of the wheel braking devices 8 and 9 is equipped with exactly one inlet valve 30, 31 and one outlet valve 32, 33. The first wheel braking device 8 is equipped with a first inlet valve 30 having a first check valve 34 and a first outlet valve 32, and the second wheel braking device 9 is equipped with a second inlet valve 31 having a second check valve 35 and a second outlet valve 33.

[0047] A first inlet valve 30 and a first outlet valve 32, each having a first check valve 34, are respectively arranged in the first hydraulic braking circuit 11. Correspondingly, a second inlet valve 31 and a second outlet valve 33, each having a second check valve 35, are also arranged in the first hydraulic braking circuit 11. Figure 1 and Figure 2 ), or arranged in the second hydraulic braking circuit 12 ( Figure 3 and Figure 4 ).

[0048] Hydraulic pumps 27 and 28 are used as return pumps to deliver excess hydraulic fluid, such as for regulating hydraulic braking pressure, especially after the braking process has ended, back to the piston chambers 16 and 18 and finally to the chambers 20 and 21 of the reservoir 19.

[0049] Therefore, the hydraulic pump or each hydraulic pump 27, 28 can be / has been fluidly connected to the corresponding wheel brake device 8, 9 on the inlet side through the corresponding outlet valve 32, 33.

[0050] Furthermore, cylinders 36 and 37 are respectively arranged between the inlet side of each hydraulic pump 27, 28 and the corresponding outlet valves 32, 33. Each cylinder has a spring-loaded piston 38 or 39 movable within it to form another accommodating space for the hydraulic fluid as needed. Therefore, a first cylinder body 36 with a first piston 38 is arranged on the inlet side of the first hydraulic pump 27 and in… Figures 2 to 4 In the middle, the second cylinder 37 with the second piston 39 is arranged on the inlet side of the second hydraulic pump 28.

[0051] exist Figure 2 In this configuration, another check valve 40 and another check valve 41 are respectively arranged between the inlet sides of each cylinder 36, 37 and each hydraulic pump 27, 28. Specifically, another first check valve 40 is arranged between the first cylinder 36 and the first hydraulic pump 27, and another second check valve 41 is arranged between the second cylinder 37 and the second hydraulic pump 28.

[0052] Each hydraulic pump 27 and 28 is also equipped with another check valve 42 and 43 on its outlet side. Specifically, a third check valve 42 is arranged on the outlet side of the first hydraulic pump 27, and a fourth check valve 43 is arranged on the outlet side of the second hydraulic pump 28.

[0053] In addition, Figure 2 In the first hydraulic braking circuit 11, pressure sensors 44 are arranged upstream of each hydraulic pump 27, 28 and check valve 42, 43. Figure 2 In the middle, the axle braking module 1 also has first and second main switching valves 45, 46 and first and second switching valves 47, 48 in the hydraulic braking circuit 11. The main switching valves 45, 46 and the switching valves 47, 48 are assigned to the piston chamber 16.

[0054] The first hydraulic pump 27 is technically connected to the piston chamber 16 at its inlet via a first main switching valve 45, which is located between the hydraulic pump 27 and another first check valve 40. The second hydraulic pump 28 is technically connected to the piston chamber 16 at its inlet via a second main switching valve 46, which is located between the hydraulic pump 28 and another second check valve 41.

[0055] The first hydraulic pump 27 and the first inlet valve 30 are technically connected to the piston chamber 16 on the outlet side via the first switching valve 46. The second hydraulic pump 28 and the second inlet valve 31 are technically connected to the piston chamber 16 on the outlet side via the second switching valve 48.

[0056] exist Figure 4 In the middle, the structure of the first hydraulic braking circuit 11 corresponds to Figure 3 The structure of the second hydraulic braking circuit 12 is different from that of the previous one. The second hydraulic pump 28 is arranged such that it is equipped with both a second inlet valve 31 with a second check valve 35 and a second outlet valve 33 on the outlet side. Thus, the second hydraulic pump 28 can optionally be connected to / has been connected to the second piston chamber 18 on the outlet side via one of the aforementioned valves.

[0057] A check valve 49 is arranged between the second piston chamber 18, the second piston 37, and the second outlet valve 33, and a pressure sensor 44 is arranged between the check valve 49 and the second piston chamber 18. Figure 2 similar.

[0058] In short, through Figure 1 The axle brake module 1 shown implements single-channel anti-lock braking (ABS) adjustment, through... Figure 2 The axle brake module 1 shown implements additional stability control (ESP) through... Figure 3 The axle brake module 1 shown implements dual-channel anti-lock braking (ABS) adjustment, through... Figure 4 The axle braking module 1 shown implements hybrid ABS and ESP functionality, which has an advantageously reduced number of components.

[0059] Finally, Figure 5 As described at the beginning, a motor vehicle 3 or a vehicle trailer 4 is schematically shown. The braking device 2 installed therein has the aforementioned features on at least one axle 5, 6. Figures 1 to 4 At least one shaft braking module 1 shown.

[0060] The axle brake module 1, due to its hydraulically closed construction and limitation to exactly one axle, is an advantageous component of the modular system used in the braking device 2. Therefore, the braking device 2, for example, has a first axle brake module 1 assigned to the first axle 5.

[0061] Furthermore, the braking device 2, as indicated by dashed outlines, particularly includes a second axle braking module 1 assigned to the second axle 6 or an electromechanical wheel braking module 50 assigned to one of the two wheels 7 of the second axle 6.

[0062] The axle braking module 1 can be constructed in the same or different ways. The wheel braking modules 50 can also be constructed in the same or different ways and each has a controllable actuator for generating braking force.

[0063] In order to coordinate the operation of the corresponding braking modules 1 and 50, the braking device 2 also has at least one control device 51, which is technically connected to / has been connected to each braking module 1 and 50.

Claims

1. An axle braking module (1) of a braking device (2) for a motor vehicle (3) or a vehicle trailer (4). - It has two, and exactly two, operable wheel brakes (8, 9) for decelerating the motor vehicle (3) or vehicle trailer (4). - Each of the wheel braking devices (8, 9) can be assigned to / has been assigned to another wheel (7) on the same axle (5, 6) of the motor vehicle (3) or vehicle trailer (4), and - It has one, and exactly one, controllable braking force generator (10). - The braking force generator (10) is configured to deliver hydraulic fluid to at least one hydraulic braking circuit (11, 12) to generate braking pressure at the corresponding wheel brakes (8, 9). Its features are, The axle brake module (1) has a common hydraulic brake circuit (11) or two hydraulic brake circuits (11, 12) respectively assigned to one of the wheel brake devices as hydraulically closed brake circuits, so that the brake circuit is only assigned to the axle brake module (1).

2. The shaft braking module according to claim 1, characterized in that, The braking force generator (10) has a controllable first actuator (13) and a first hydraulic piston (14) coupled to the first actuator (13) and movable in a brake cylinder (15), wherein a first piston chamber (16) closed by the first hydraulic piston (14) is fluidly coupled / has been coupled to the hydraulic braking circuit or the first hydraulic braking circuit (11) of the hydraulic braking circuit.

3. The shaft braking module according to claim 2, characterized in that, The braking force generator (10) has a second hydraulic piston (17) that is elastically coupled to the first hydraulic piston (14) and movable in the brake cylinder (15). The second piston chamber (18) closed by the second hydraulic piston (17) is fluidly coupled / has been coupled to the second hydraulic brake circuit (12) of the hydraulic brake circuit. Each of the hydraulic brake circuits (11, 12) is assigned to another wheel brake device in the wheel brake device (8, 9).

4. The shaft braking module according to any one of the preceding claims, characterized in that, The axle braking module (1) has a hydraulic pump (27, 28) or a hydraulic pump in the hydraulic braking circuit or the corresponding hydraulic braking circuit (11, 12), wherein the hydraulic pump or one of the hydraulic pumps (27, 28) is assigned to the wheel braking device (8, 9).

5. The shaft braking module according to claim 4, characterized in that, The shaft braking module (1) has at least one operable second actuator (29), which is associated with a corresponding hydraulic pump (27, 28) or these hydraulic pumps (27, 28).

6. The shaft braking module according to any one of the preceding claims, characterized in that, The axle braking module (1) has an inlet valve (30, 31) and an outlet valve (32, 33) in the hydraulic braking circuit or the corresponding hydraulic braking circuit (11, 12), wherein each wheel braking device in the wheel braking device (8, 9) is respectively equipped with one inlet valve of the inlet valve (30, 31) and one outlet valve of the outlet valve (32, 33).

7. The shaft braking module according to any one of claims 4 to 6, characterized in that, The hydraulic pump or the corresponding hydraulic pump (27, 28) is fluidly connected to the corresponding wheel brake device (8, 9) on the inlet side via the corresponding outlet valve (32, 33).

8. The shaft braking module according to any one of claims 4 to 7, characterized in that, The shaft braking module (1) has a main switching valve (45, 46) or a main switching valve in the hydraulic braking circuit or the corresponding hydraulic braking circuit (11, 12), wherein the main switching valve or the corresponding main switching valve (45, 46) is assigned to the corresponding piston chamber (16, 18), and the hydraulic pump (27, 28) is fluidly connected to the corresponding piston chamber (16, 18) on the inlet side through the main switching valve.

9. A braking device (2) for a motor vehicle (3) or a vehicle trailer (4), characterized in that, The braking device has a first axle braking module (1) that is capable of being assigned to / has been assigned to an axle of the motor vehicle (3) or vehicle trailer (4), particularly a first axle (5, 6), according to any one of the preceding claims.

10. The braking device according to claim 9, characterized in that, The braking device has a second axle braking module (1) according to any one of the preceding claims, which is capable of being assigned to / has been assigned to another axle of the motor vehicle (3) or vehicle trailer (4), particularly a second axle (5, 6), and the second axle braking module is constructed differently from the first axle braking module (1).

11. The braking device according to any one of claims 9 and 10, characterized in that, The braking device has two electromechanical wheel braking modules (50) that are respectively assigned to / already assigned to another wheel (7) of another axle of the motor vehicle (3) or vehicle trailer (4), especially the second axle or the third axle (5, 6), the two wheel braking modules being constructed in particular identically, each having a controllable actuator for generating braking force.

12. The braking device according to any one of claims 9 to 11, characterized in that, The braking device has at least one control device (51) specifically designed to coordinately operate the axle braking module (1) or all braking modules (1, 50).

13. A motor vehicle (3), characterized in that, The motor vehicle has a braking device (2) according to any one of claims 9 to 12.

14. A vehicle trailer (4), characterized in that, The vehicle trailer has a braking device (2) according to any one of claims 9 to 12.

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