Electric wheel brake unit assembly with efficient assembly method

Abstract

The present invention relates to a product and assembly method for an electric wheel brake unit composition (1) comprising at least one electric wheel brake actuator component (2), a mounting component (3) arranged between them, and a brake carrier component (4) as a support for everything, comprising two opposing surfaces (5, 6). Object of the present invention: functional improvement, rigid and load-resistant design, modernized adaptation, effective assembly, reliable and sustainable component design and new unit composition together with a new rationalized assembly method based on the components. Solution: New mounting component (3), including interface means (12; 12.1, 12.2) to be received, which are pre-arranged in conjunction with a receiver in the brake carrier component (4).

Description

Field of invention

[0001] The present invention relates to a composition for assembling electric friction brake assemblies of the automotive wheel brake type, particularly in a configuration as an electric disc brake or drum brake, comprising at least one electric actuator component serving as a servo-electric motor drive, further comprising a mounting component serving as an interface for interchangeable compatibility, and comprising a brake carrier component serving as a unit carrier for all the components involved. Furthermore, the present invention relates to a streamlined, efficient assembly process strategy with valuable implications for space savings and compact production line design with regard to the final assembly of the units.

[0002] Some electromechanical actuators are disclosed in WO 2017 / 097696 A1, WO 2007 / 089300 A2, WO 2005 / 070736 A2, and US 5310026 A. Prior art electric wheel brake units have the disadvantage that electromechanical actuators mounted directly on the brake carrier plates require a specific actuator housing design to conform to the overall shape and dimensions of the brake and, more generally, to the vehicle installation conditions. As a result, even the configurations of the operating components of an electromechanical actuator may prove unsuitable for a range of vehicles. Accordingly, the use of standard electromechanical actuators is extremely limited, resulting in high production, installation, and maintenance costs for electric wheel brake unit assemblies.

[0003] A space-saving, combined, electrically controlled dual-servo drum wheel brake unit is known, for example, from EP 0 594 233 B1. The system comprises a current-driven spindle wheel actuator for controlling the drum brake lever, wherein an electric handbrake function is integrated into the actuator and wherein the electric actuator component is directly screwed to the brake carrier component. The electric actuator component controls the drum brake lever of a secondary brake shoe in such a way that the pull with respect to both brake shoes is subsequently carried out as a translated reaction method based on lever ratio, including a subsequent lever connected to an opposing primary brake shoe, which interacts with two struts that maintain the two brake shoes at a guaranteed distance, so that all the aforementioned levers and connections are directly involved in the subsequent force flow into their pin bearings.The unit allows independent electric wheel brakes with the use of individual electrically driven duo-servo drum brakes without the need for or involvement of a mechanical handbrake cable connection between multiple braking mechanisms in between.

[0004] EP 2 670 997 B1 recommends a combined simplex drum brake unit based on a hybrid drive architecture. The service brake function is hydraulically and directly actuated by hydraulic pistons of the wheel brake cylinder and mounted on a brake carrier support plate. It also includes an electric parking brake function, which is individually actuated using a cable-type electric wheel brake actuator in conjunction with a brake pad lever driven by the electric cable actuator component. The actuator system is indirectly mounted to the brake carrier component (anchor or support plate of the drum brake) via an adapter.

[0005] EP 3 755 590 B1 relates to electric parking brake actuator assembly groups that allow a standardized housing design for the electric actuator in conjunction with a standardized adapter component and a standardized assembly procedure. The carrier interface (holder / adapter) component 3 is inserted between the electric actuator component 2 and the brake carrier component 4 in an assembly movement direction M1 that is radial – i.e., perpendicular – with respect to the wheel rotation axis / axial direction Ax. The adapter component 3 is hooked in radially, and the electric wheel brake actuator component 2 is interchangeably coupled and locked via an oblique assembly movement M2, followed by a rotary bayonet rotation assembly movement M3 of the electric actuator component 2 with respect to the carrier holder component 3, which is mounted on the brake carrier component 4.In the preferred embodiment, the bracket 3 is provided with a hook seat 14 for the hook-13 interface. The production of the support plate 4 is considered expensive due to the complexities involved, including the deep-drawn tube 17 section, which is a deformed, skewed contact area, and the hooks 13 that must interact with the hook seat 14 in the bracket component 3. With regard to the hooks, the hook seats or other sections, particularly of the support component, may have an unintended disadvantage, which may consist, in particular, of their unintended deformation or their complex coupling method; a more robust assembly and a more robust assembly method are required.

[0006] The composition of the friction wheel brake units (component design, component production including the unit assembly process) is to be improved to be more reliable / robust, more flexibly adaptable, more cost-effective, and overall more efficient. Essentially, components are very often prefabricated at various locations worldwide, for reasons such as cost, efficiency, and quality. These components can then be virtually tested, for example, using dummy tests, at such a physical distance from their respective neighboring components – which requires perfect process control.For example, a lightweight mounting component might be manufactured from plastic material by plastics specialists, while the preferred brake carrier component might be a metal drum brake carrier plate designed for high temperature resistance, which could be produced primarily from deep-drawn sheet steel. Accordingly, different components and technologies justify different supply chains in their respective industries, all with overall quality objectives of 100% inspected and certified friction brake components, ensuring that only perfectly approved components leave their facilities for final assembly. However, errors or misconduct by workers can occur, or perfectly manufactured components may be subject to unintentional damage due to logistical reasons.

[0007] The present invention reduces the complexity of handling the components involved and simplifies assembly, improves functionality through pre-assembly, and prevents unintentional misalignment / displacement. In particular, the present invention provides robustness with reduced complexity regarding brake carrier components, including their design, production, handling, shipping, and assembly of assemblies. The invention offers a rigid and load-resistant design, modernized adaptation, more effective assembly, reliable and sustainable component design with a new unit composition, and a new, streamlined assembly process using improved interfaces and assembly elements for the components involved.

[0008] The present invention proposes, in particular, new interface means for improved interaction between interlocked components, wherein these new interface means can interact essentially and automatically and be held together by an axially directed translational assembly movement, which is carried out with at least one of the two components in the direction of the other in the M4 direction using a plug-in connection principle. Essentially, and further as an improvement on such a plug-in connection approach, the invention proposes automatic positioning and referencing with a simple M4 assembly movement for interaction and holding between the mounting component and the brake carrier component, wherein the mounting component can include integrated interface means that can reliably function as a guide and / or coupling reference during placement and positioning.These means can enable improved coupling and positioning of components, preferably with self-adjusting and / or holding capabilities, in interaction, for example, between a mounting component and a brake carrier component, thus allowing for a simple assembly process and a space-saving process line configuration for the final assembly of the unit. In the preferred embodiment, the coupled components, in particular their interacting interface means, can be designed to hold each other, at least temporarily, in their pre-arrangement configuration, so that they can be handled safely and protected from unintentional displacement.

[0009] The preferred embodiment may in particular comprise a plate-like flat, tubeless, hookless planar support component 4 - for example in the configuration of a support plate - which may also allow an improved implementation with interface + connection with respect to the automotive axle flange.

[0010] One or more components, particularly those provided in the area of ​​the interface means, may additionally include or integrate holding means that can keep the interlocked components together. In a preferred embodiment, such a holding function may include clamping means that interact in such a way that the components are at least temporarily arranged and fastened to one another. Such temporary holding or clamping means may therefore include elastic means, e.g., spring means, which, for reasons of compact design, may be integrated into or located near the interface means.

[0011] Consequently, and for reasons of industrial logic, the present inventions allow for significant improvements in logistics, as price-driven automotive customers demand and require increased efficiency with multi-part electric brake components, and especially with brake units, including their assembly. This essentially means streamlined, simplified, and consequently improved wheel brake unit systems with efficient assembly capabilities for electric actuator drives, promoting streamlined production and assembly, along with flexible supply chain modifications and good adaptability to ongoing changes in applications, conditions, or requirements. Therefore, ease of flexibility with simple and safe variation appears to be of central importance in automotive component design.The latter is particularly true if, for example, a brake unit A (e.g., drum wheel brake module) comprises a coupling of components B1 (e.g., electric actuator drive) and C (e.g., carrier plate with drum brake shoe assembly and connection), where these components are produced, for example, in remote factories D and E, and where the customer desires a change in that a newly developed brake unit F (new drum wheel brake unit) is to essentially comprise an unchanged component C from factory E, but with the replacement by a new component B2 (e.g., new electric actuator drive) supplied by another remote factory G. Consequently, from a change management perspective, logistics, component interfaces, and their coupling and connection are considered essential in the business of safety-critical electric brake units.

[0012] In more detail, the improved interface system is preferably provided with one or more mating interface means, which can preferably be integrated with form-locking reception in the receiving and receiving components, e.g., as one or more opening(s) 7, which are designed as through-hole(s) in or with the brake carrier component 4. Alternatively, the brake carrier component 4 can be designed as a preferably nearly flat, sheet-metal-like, for example, steel support plate with flat opening(s) 7 as a receiving interface 11, which is suitable or intended for the interaction (reception) of one or more receiving mounting interface(s) 12, which is inserted or plugged axially into its interlocking, designated receiving opening(s) 7 using the simple assembly method of the invention.As a result, the preferred metal support plate geometry is significantly simplified – without the difficult deep-drawn tube section 17 (especially when compared with EP 3 755 590 B1). Furthermore, the preferred embodiment exhibits reduced complexity without the curved hook 13. All in all, the present invention eliminates risky production problems with the valuable and substantial reduction of quality complaints due to non-planarity. This significantly simplifies the corresponding mounting interface design and assembly requirements, for example, by completely eliminating hook 13 and hook seats 14, which require a radial (translational) assembly movement M1.

[0013] The shape or profile of the interface elements can generally be defined as mirror symmetry. For example, an interface element can be shaped as a circular through-hole. In the simplest embodiment, a suitable anti-rotation measure is a group of at least two or more spaced-apart (but with parallel axes to each other) interface elements that are received in through-holes, e.g., pin projections with a circular profile (all parallel to each other), each penetrating its receiving hole.

[0014] In another possible preferred (alternative) embodiment, the shape or profiling of interacting interfaces can be without mirror symmetry, with the advantage that a single plug interface with associated receiving interface can also be sufficient on its own to function as a positive locking anti-rotation measure - e.g. by positive locking engagement of non-circular profiling - so that the interface means (and consequently the two components) are coupled and arranged to each other with interaction + safety, including anti-rotation protection.

[0015] For the preferred automated assembly method, an improved embodiment of the interface means can integrate at least one or more insertion aids for automatic self-guiding during an axially directed insertion process. For example, the guide / aid can be designed as a single piece, consisting of a funnel-shaped integration, e.g., as a tubular or channel-like section (at least of parts) of the mounting component. The cooperating guidance can be achieved with coupling, arrangement, and assembly steps between components. The guide / aid feature can be designed as inclined and cooperating mating surfaces, in that they can be arranged inclined (with respect to the axis), but are generally arranged parallel to each other, so that one surface is guided through the other and vice versa.

[0016] Design costs are reduced through concentration when mating interface elements are neither duplicated nor distributed, but rather concentrated, for example, in a single-point assignment directly opposite each other on or within the first surface of the brake carrier component. A cost-effective variation option is achieved when the mating interface element(s) are indirectly integrated into the brake carrier component. Standardization with increased cost efficiency is promoted when it is achieved with the option of direct integration.

[0017] The manufacturing process of a holder component is simplified, particularly in the case of a concentration, if the interface element to be received at least partially surrounds the actuator drive element. This surround may, for example, at least in cross-section, preferably be channel-like or tube-like. Consequently, the effectiveness is increased by improved alignment during coupling, as well as by the proximity and concentration of the reference and support elements in the region of the support and force transmission.

[0018] The positive locking interaction between interlocking interface elements is preferably three-dimensional in that, when interfaces are correctly assembled by a linear coupling movement – ​​i.e., along the assembly axis – the resulting positive locking effect acts in the opposite direction. Preferably, this positive locking effect occurs in a perpendicular direction, i.e., perpendicular to the assembly axis.

[0019] Interface elements can function as arrangement references, i.e., with, preferably integrated, coded conformance means that serve for the automatic, correct, and fraud-proof connection, interlocking / coupling, or (re)placement of components during production or maintenance. Overall quality with correctly coupled and assembled components is guaranteed regardless of the specific stage in the product lifecycle of the wheel brake units.

[0020] In a preferred embodiment, a projection integrated into the first surface of the mounting component can support the interacting interface means, thus allowing this feature to be integrated and concentrated in place. In a more preferred detail of such an embodiment, the interface projection of the mounting component can be located at the very front, e.g., as part of a tip, initially penetrating the opening immediately from the start of the coupling with the selected brake carrier component.

[0021] In further improved embodiments, increased stiffness during braking force transmission is achieved by a mounting interface in the form of a projection, preferably comprising a stepped tip that rests on a frame surface of the first surface of the brake carrier component. This frame surrounds the opening, with a recessed receiving area for the tip section within the opening. For a more detailed example, the opening in the carrier component can be designed in the form of a window, comprising a frame surrounding the opening. The frame can then serve for positive engagement and / or for supporting the tip section of the mounting component.

[0022] In the preferred embodiment, the opening has an arcuate window shape with a rounded arc. The brake carrier component can comprise a first and a second surface, wherein the opening can be integrated essentially flat from the first surface side, such that the opening and surface are flush with each other.

[0023] Furthermore, the aforementioned hardware proposal of the invention also provides a novel wheel brake unit assembly method strategy, wherein the mounting component and the carrier component are pre-arranged and temporarily held in place relative to each other by mutual interaction via their appropriate interface means in a simple "plug-in" assembly direction. Here, the mounting component is understood to be equivalent to a plug that is simply inserted into its socket (i.e., the brake unit carrier component is equivalent). Finally, following such a plug-in assembly step, the final tightening assembly step is carried out using releasable fasteners such as a screw, rivet, bolt, or similar element.

[0024] Details of preferred embodiments of the present invention are disclosed in the drawing together with the following description of the drawing. The drawings show and disclose, among other things, partly in a rough exemplary manner, preferred embodiments, which may still find variations with gradual alternative reductions in practice: Fig. 1 for a general explanation of the assembly technology according to the prior art in accordance with EP 3 755 590 B1, comprising hook-13 interface + hook seat (slot) 14, furthermore the pin-15 latch 16 and non-planar load support in the form of bushing area projection 17, which projects from the first surface 5 of the brake carrier component (carrier plate) 4 in the direction of the mounting component 3 and electrical actuator component 2, in perspective, near-natural scale, Fig. 2 improved and rationalized carrier component 4, comprising new receiving interface means 11 following the first preferred embodiment of the present invention, comprising substantially a planar carrier plate interface section (hookless, omitted tube 17 projection), comprising an opening 7 for simple axial insertion assembly in translational assembly movement M4, drawn in perspective with near-natural scale, Fig. 3: Preferred improved and streamlined mounting component option 3 with tube section 9, comprising tip with receiving interface means 12.1; 12.2, which are received in receiving counterparts, according to the first preferred embodiment of the present invention, drawn in perspective to near natural scale, Fig. 4: Simplified exploded view showing components 3, 4 in section of the symbolized transfer line TL on a movable workpiece carrier (WPC) in a preferred embodiment + assembly process visualization in axial assembly movement strategy M4.1, M4.2 with the interlocking components 3, 4 in a three-dimensional working zone (WZ) with a specified simple (insertion) pre-arrangement step of the interface means 12.1, 12.2 to be accommodated parallel to the axial axis direction. Fig. 5 + Fig. 6: Preferred embodiment in simplified visualization for assembly steps in the transfer line process in the corresponding working area WZ in conjunction with a successful repositioning step from Fig. 4, wherein Fig. 5 indicates the interlocking of preferred embodiments prior to the pre-arrangement between mounting component 3 and support component 4, ready for an axially directed insertion movement of the interfaces, and Fig. 6 indicates the reception with interface interaction in opening 7 in the carrier component 4, and preferably the fastening between mounting component 3 and carrier component using screws as a detachable mounting / fastening element, Fig. 7 - 9: preferred embodiments simplified visualizations of functional details for explanation with support and force transmission function regarding force / reaction force flow with exchange between electrical actuator component 2, mounting component 3 with tube section 9 and substantially flat, hookless, tubeless, load-bearing support plate component 4.

[0025] Details of the most preferred embodiment of the present invention are shown in the drawing and further disclosed by the description or claims. A multitude of other variations also appear possible or suitable, whether they are presented therein or are understandable to a person skilled in the art in connection with such a modification, without deviating from the scope of protection of the invention as defined by the corresponding patent claims.

[0026] A known standard interface and assembly strategy with regard to the prior art document EP 3 755 590 B1 is to be understood as follows in connection with assembly movements indicated by arrows M1, M2 and M3 as shown in Fig. 1 are symbolized. There, the M1 direction is considered to run parallel to the radial direction R. The known system relates to the wheel brake assembly in the configuration of a drum brake system, comprising the electrical actuator component 2, which is preferably surrounded by the plastic housing, the intermediate mounting component 3, which is preferably made of plastic material, and the brake carrier component 4 in the form of a carrier plate, which comprises two opposing surfaces 5, 6 with a cutout by opening 7 and is preferably made of sheet metal, and particularly preferably of sheet steel. A plastic carrier interface (mounting / adapter) component 3 is inserted between the electrical actuator component 2 and the brake carrier component 4 in a translational assembly movement direction M1, which is arranged radially (perpendicular to the wheel rotation axis / axial direction Ax).Adapter component 3 is hooked in, beginning with a radially directed insertion movement M1. For interface reasons, the support component 4 is provided with a projection – bushing 10 and several special cutouts – which act as deformed hooks 13 that are guided and seated in slotted hook seats 14 of the mounting component 3. The mounting component 3 is then screwed to the brake carrier support plate component 4 using several screws. A subsequent inclined assembly movement M2 involves sliding in the electric actuator component 2. The electric wheel brake actuator 2 component is then interchangeably coupled and locked via an oblique translational insertion assembly movement M2, so that the actuator drive element 8 penetrates the mounting tube section 9. A bayonet-type assembly movement M3 of the electric actuator component 2 is then performed with respect to the support mounting component 3. The latter may include a pin 15-latch 16 system.Finally, the actuator component 2 can be screwed to the mounting component 3, for example, using one or more screws. The conventional design and method have disadvantages. The production of interfaces of conventional carrier plate component 4 is considered complex due to potential irregularities such as unintentionally deformed hooks or deep-drawn bushing 17 sections. Potential defects are frequently associated with interface defects, for example, a crooked support 10 section, as well as unintentionally deformed hooks 13, which may be damaged during shipping. Such an unintentionally deformed hook 13 may fail to function correctly, instead of aligning itself in the hook seats 14 in the plastic brake carrier component 4.

[0027] The aforementioned conventional interface design and assembly method of the transfer line TL is not only space-consuming due to the numerous different directions of movement (M1, M2, M3), but also offers no protection against unintentional loss or displacement during assembly (e.g., unintentional disassembly movement in the opposite direction to M1). Furthermore, unprotected or rough handling of components during shipping can lead to transport damage, such as unintentionally deformed support components or hooks, which can ultimately result in coupling and assembly errors. Therefore, a more robust and space-saving solution regarding interfaces, component design, and assembly is required.

[0028] Details and aspects of embodiments with the modified design and assembly process strategy of the present invention are described in Fig. Figures 2-9 illustrate and explain this. Similar or identical features are marked with identical or similar reference numerals, and the following drawing description focuses on the differences of the invention, while the rest, e.g., material selection, assembly, or other general features, may still apply even if not explicitly mentioned in the following description.

[0029] Essentially, the efficient component interaction and interface design of the present invention between mounting component 3 and brake carrier component 4 follows the harmonized, fully axially oriented plug-in connection installation scheme of the invention, which follows the simple parallel plug-in connection assembly movement M4; M4.1, M4.2 of the invention, which is arranged essentially parallel to the axial direction Ax (= wheel rotation axis), that is, with respect to an assembly process / transfer line TL, essentially parallel to the axis of gravity g, so that not only is an automatic positive locking effect achieved in the interaction of interlocking interfaces, but a natural weight of the mounting components can contribute to protection against unintentional displacement / pre-arrangement during the assembly process.

[0030] As shown in the drawings, the mounting component 3 includes interface means 12; 12.1, 12.2 in the form of a projection which is received in the brake carrier component 4 by axial simple insertion movement M4; M4.1, M4.2 or vice versa, so that a pre-arrangement of components can be achieved in a positive-locking connection. A projection of the mounting component 3 can carry interface means 12.

[0031] The present invention therefore not only provides a pre-arranged and connected placement after coupling, but also improves the safety in connection with each other when maintaining the correct arrangement together with automatic locking effect with the cooperating means, e.g. cooperating interface means, so that the inventive interface proposal enables a robust and effective coupling with respect to components together with the additional safety bonus with respect to protection against deterioration, unintentional removal or displacement.In the most recommended preferred production system and assembly using transfer line processes, the axial direction Ax is parallel to the effects of gravity g, so that not only does the positive locking interaction between coupled interfaces hold and protect the pre-assembled structure, but the natural weight of the components also contributes an effective, additional, and cost-free benefit to a well-deserved defense against unintentional displacement between components. Consequently, the presented method and design are inherently robust (positive vibration-resistant properties).

[0032] As a free bonus, the invention can include a fixing function in the sense of a temporary holding function – for example, using the natural weight / gravity of the coupled components. The latter can be particularly helpful in industrial mass production processes when a unit is pre-assembled, either in conjunction with a transfer line (TL) when held on a workpiece conveyor carrier, or alternatively when placed on a stationary workbench. The temporary holding function can be integrated into interface means or be part of other alternatives, which may include additional holding means. An integrated or alternative (temporary) holding function can be achieved, for example, by using press-fit elements that can interact and lock between the components during the process of interlocking / coupling.The holding function can begin with a connection as well as with an initial simple insertion mounting movement (M4, M4.1, M4.2).

[0033] Alternatively or additionally, the holding means can include clamping elements, which may, for example, be designed as snap-locking elements. Furthermore, this holding means can be combined in any possible alternative or selection, resulting, for example, in a combination of the natural weight of the components with the effect of gravity together with positive locking and / or connection. In other words, the present invention also permits and preferably allows a selective combination of several holding means for their interaction to provide improved automated security against unintentional displacement.

[0034] In the preferred adaptation for an improved and more efficient combination of features and functions—particularly without the need for an additional separate part (logistical advantage)—the components 2, 3, and 4 involved can integrate the aforementioned holding means. Specifically, the interface means 11, 12; 12.1, 12.2 of components 2, 3, and 4 can integrate the holding means, thus combining the interface function with the holding function.

[0035] In a further preferred embodiment, any retaining means can comprise an elastically deformable spring element, preferably produced by elastic deformation of a plastic component and / or produced with elastomeric material, which can either be integrated into the actuator component 2 and / or into the retaining component 3, or alternatively, into both components 2 and 3. The latter can be designed such that different elements interact and work together.

[0036] Essentially, each brake carrier component 4 is preferably designed in a brake carrier function (non-rotating = static) for the base of the wheel brake unit assembly, which includes a wheel brake actuator component 2, which can be arranged substantially in front of a first surface 5, and with friction brake linings for friction brake interaction with a wheel brake rotor, which are arranged substantially in front of a second surface 6 with a through-opening 7 that enables electrical control by the carrier component 4, and wherein the brake carrier component 4 allows the wheel brake unit assembly with vehicle axle components. With this system integration, the brake carrier component 4 preferably has an opening 7 with a passage for an electric actuator drive element 8, wherein the electric actuator drive element 8 is at least partially encompassed by the mounting component 3.The sectional grip is preferably arranged in a projection to be received, which is designed as a pipe section 9 of the mounting component 3, wherein the mounting component 3 is placed between the brake actuator component 2 and the brake carrier component 4, wherein the sectional grip, preferably the pipe section 9 to be received, is designed for its centrally located support with contact in the axial Ax direction, radial R direction and tangential T direction under actuator force flow F. MGU and / or reaction force flow F R in the opening 7 is essentially located centrally on the first surface 5 of the brake carrier component 4 and is received.

[0037] In the preferred brake carrier component 4, the preferred mating interface means 11 is essentially flat – that is, inline with the main plane of the opposing surfaces 5, 6 and preferably also as a receiving receptacle. In the embodiment, the latter is represented in the form of a through-opening 7. Thus, a simple and axially directed through-opening 7 with a window shape is recommended, which is fully integrated and can preferably be cut out of the brake carrier component 4 (sheet metal (preferably steel sheet) material).

[0038] In the preferred embodiment, the interface function between the mounting components 3 comprises interface means 12; 12.1, 12.2 to be received, which is accommodated or marked in its receiving counterpart interface means 11; 11.1, 11.2, and whose torsion-resistant anti-rotation coupling is present. An interference fit between the interface means to be received and the receiving interface means can provide their torsion-resistant locking interaction. This is true in the simplest form if the interacting shape is circular. Another suggestion is that the torsion-resistant coupling interface is integrated into the coupled shape, so it is recommended that the coupled shape not be circular. Consequently, a wide variety of suitable torsion-resistant profiles are possible, which can be rectangular or otherwise shaped, so that the coupled profile generates the anti-rotation effect.

[0039] In a further preferred embodiment with respect to components 2, 3, 4, guide means can be implemented. Preferably, such guide means can be arranged at a distance and / or in the vicinity of or in close integration into positions / placements in the interface means 11, 12, so that the guide means involved can serve as an interlocking aid for automatic support during coupling and assembly, and wherein the guide means can essentially comprise one or more surfaces that are arranged inclined at a specific angle α (viewed with respect to the radial direction R and / or the tangential direction T and / or the axial direction Ax) with respect to the axial simple insertion mounting direction.

[0040] In an alternative modification, any receiving mating interface means 11 can be integrated directly or indirectly on or into the brake carrier component 4. The latter is proposed, for example, by integrating mating interface means 11 into an additional separate component, which can be mounted in a support / position within the brake carrier component 4.

[0041] In another variation, the interface element 12 to be incorporated can act as a sheath / coating, at least partially, for an actuator drive element 8 of the electrical actuator component 2. If the actuator drive element 8 extends through the tubular section 9 of the mounting component and through the opening 7, it receives the shielding function provided by the tubular section 9, thus preventing, for example, damage from foreign material such as stones or other impacts on rough gravel roads. The shielding design for the tubular section 9 can, for example, include a configuration as a mounting component projection that is "nose-shaped" and offers advantages due to its protective function.

[0042] If deemed necessary, several spaced-apart interface means 11, 12; 12.1, 12.2 are possible. These are arranged to interact in a coordinated, harmonized direction, so that they are applied in the insertion direction M4; M4.1, M4.2 and operate constantly, preferably approximately parallel to the axial axis Ax, such that when the several spaced-apart interface means are all interlocked and interact between all components 2, 3, 4 with enhanced effect regarding positive locking between components (3, 4) with respect to the radial direction R and tangential direction T, which run perpendicular to the insertion direction M4 / that is, preferably parallel to the axial axis Ax.

[0043] Interface means can provide hardware coding for an acceptable and compliant hardware handshake in interaction between all corresponding / compatible components 2, 3, 4, wherein such code means can preferably function with integration into components 2, 3, 4, e.g., in their interface means 11, 12. The code allows automatic hardware fault protection in conjunction with identification of faulty coupling or incorrect assembly, so that fraud or failures due to incompatibility are automatically prevented by the code. As a further alternative with regard to the proposed code means involved in their hardware integration, or as a supplement thereto, digital and / or electronic monitoring means appear recommendable and feasible for integration into the assembly process / production system for in-situ quality verification during assembly processes.Such a monitoring system can include image and / or camera systems with or without digital image processing. The latter can particularly include AI systems (AI - artificial intelligence), the implementation of which in software with automated, digitized control of process and product quality is recommended.

[0044] Each projection of the mounting component 3 can include a tip section with a special profile that simplifies the finding and streamlined penetration process towards M 4 through the opening 7 in the brake carrier component 4. Consequently, the tip section can be configured as a stepped tip, with the first surface 5 of the brake carrier component 4 comprising the opening, which can preferably be configured as a stepped and / or framed opening to receive a stepped tip projection. A front face of the stepped tip can penetrate the opening 7. The tip can terminate in a stepped manner or can reach a level, either fully or partially, with the second surface 6 of the brake carrier component 4.

[0045] The opening 7 can comprise a window shape, which in particular can be of any window shape, but preferably can be configured in an arched window shape, wherein more specifically the Romanesque arched window shape is more preferred than the also possible Gothic arched window shape, wherein the Romanesque arched window shape is particularly preferred, which can comprise an arched section into which a circular arc segment with a single predefined circular radius can be integrated, and wherein the arch connects the two opposing parallel window slits.

[0046] A brake carrier component 4 can essentially comprise a thinly sliced ​​body which may be cut from flat sheet steel metal material such that the main areas around a first and second surface and / or around the opening are at the same level, which is straight and flat, so that the opening 7 can generally be two-dimensional in that the surfaces 5, 6 are essentially aligned, but nevertheless are at an essentially identical level to each other ('aligned').

[0047] The components, interfaces, or other parts of the electric wheel brake assembly 1 may include one or more sealing means in direct or indirect coupling to, proximity to, or in direct or indirect interaction with interfaces and / or the opening 7. Such sealing means may essentially serve to protect against the unintentional ingress of foreign material, e.g., to protect against moisture ingress and / or dirt ingress, e.g., to seal the interior of the electric actuator component 2, but also to seal the interior of the drum brake, which is located next to the second surface 6 of the brake carrier component 4.

[0048] An assembly process relating to an industrial transfer line "TL" can comprise several process steps for assembling the electric wheel brake unit-1 assembly. A mounting component 3 can be connected to a wheel brake carrier component 4 using a transfer line TL for stepwise industrial production, which includes a workpiece carrier WPC for carrying the workpiece in directed one-way transfer with a transmission drive comprising a chain of several rotating rollers r in a chain, which convey a workpiece carrier WPC stepwise from one assembly station to the next assembly station in a three-dimensional work area WZ to perform different assembly steps, and vice versa, wherein the carrier component 4 is held with its axial axis Ax parallel to gravity g, its second surface 6 facing downwards in the direction of gravity g on a workpiece carrier WPC.such that its first surface 5 is arranged facing upwards, feeding the mounting component 3 with translational assembly movement M1 parallel to the axial axis Ax and following the force of gravity g in the working area WZ in the direction of the brake carrier component 4, wherein both components 3, 4 include interface means 11, 12 as a reference and coordinated adjustment with joint interaction, thereby providing a pre-arrangement step between the two interlocking components 3, 4 in the working area WZ, such that these components are both a) provisionally held in place with respect to each other and b) remain adjustable while provisionally held in their positions with respect to each other prior to their final fastening step, wherein the pre-arrangement step and the final fastening step both take place in the simple "plug-in" assembly direction, which runs parallel to the assembly movement M1. Reference sign 1 Wheel brake unit assembly (WBUC) 2 Actuator component 3 Mounting component 4 Brake carrier component 5 first surface 6 second surface 7; 7.1, 7.2 Opening 8 (Actuator) drive element 9 Pipe section 10 flat printing 11 interface devices (receiving) 12; 12.1, 12.2 Interface means (to be included) 13 hooks 14 Hook seat 15 pens 16 bars 17 pipe 18, 18', 18" detachable fastening element (screw) 19, 19' Longitudinal slot (for screw mounting with mounting component 3) 20 Threaded holes (for screw mounting with braked component 3) Ax Axial direction (axis of wheel rotation or equivalent / parallel to it) F MGU electric brake actuator force F RContact reaction force (counterforce) g Gravity M1 translational assembly movement M2 translational assembly movement M3 rotary assembly movement M4; M4.1, M4.2 translational assembly movement r roller (chain) R Radial direction (perpendicular to axis) T Tangential direction (perpendicular to Ax) TL Transfer Street WP workpiece WPC workpiece carrier WZ work area QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] WO 2017 / 097696 A1

[0002] WO 2007 / 089300 A2

[0002] WO 2005 / 070736 A2

[0002] US 5310026 A

[0002] EP 0 594 233 B1

[0003] EP 2 670 997 B1

[0004] EP 3 755 590 B1 [0005, 0012, 0024, 0026]

Claims

[1] Electric wheel brake assembly (1), in particular in the configuration of an electric drum brake, comprising one or more connections of at least one electric wheel brake actuator component (2) serving a brake actuation or brake release function, comprising a support component (3) arranged between them and serving for positioning, for support, and for indirect support in the force flow of a force F MGU , F R in conjunction with the mounted electric wheel brake actuator component (2), and comprising a brake carrier component (4) with two opposing surfaces (5,6), characterized by , that the mounting component (3) comprises pluggable interface means (12; 12.1, 12.2) which are received by straight-line insertion (M4; M4.1, M4.2) into the brake carrier component (4), or vice versa. [2] Electric wheel brake assembly (1) according to claim 1, characterized bythat components are correctly aligned and connected to each other and are automatically held in place by interacting means, in particular by their interface means, with the components having an additional safety advantage against unintentional removal or displacement. [3] Electric wheel brake assembly (1) according to claim 1 or 2, characterized by , that the components (3,4) include retaining means that automatically protect a connection from unintentional removal or displacement. [4] Electric wheel brake assembly (1) according to claim 3, characterized by , that the retaining means include press-fit means which hold by straight insertion (M4, M4.1, M4.2). [5] Electric wheel brake assembly (1) according to claim 3 or 4, characterized by that the holding means include clamping means, and in particular snap-locking means. [6] Electric wheel brake assembly (1) according to claims 1-5, characterized by that the holding means combine the self-weight of the components with a positive locking connection under gravity. [7] Electric wheel brake assembly (1) according to one or more of claims 3-6, characterized by selective combination of several holding agents. [8] Electric wheel brake assembly (1) according to one or more of claims 1-7, characterized by , that the holding means are integrated into the components (2,3,4). [9] Electric wheel brake assembly (1) according to one or more of claims 1-8, characterized by , that the holding means are integrated into the interface means (11,12;12.1,12.2). [10] Electric wheel brake assembly (1) according to one or more of claims 1-9, characterized bythat the retaining means comprise elastically deformable spring means, which are preferably made of plastic and / or elastomer and are integrated into the actuator component (2) and / or the retaining component (3). [11] Electric wheel brake assembly (1) according to one or more of claims 1-10, characterized by , that the brake carrier component (4) serves as the basis for the wheel brake assembly (1), wherein the wheel brake actuator component (2) is located substantially in front of a first surface (5) and friction brake linings for friction brake interaction with a wheel brake rotor are located substantially in front of a second surface (6). [12] Electric wheel brake assembly (1) according to one or more of claims 1-11, characterized bythat the brake carrier component (4) comprises an opening (7) with a passage for an electric actuator drive element (8), wherein the electric actuator drive element (8) is at least partially enclosed by the mounting component (3), this partial enclosure is preferably arranged in a projection to be received, which is designed as a pipe section (9) of the mounting component (3), wherein the mounting component (3) is placed between the brake actuator component (2) and the brake carrier component (4), wherein the partial enclosure, preferably the pipe section (9) to be received, is provided for its centrally located support with contact in the axial Ax direction, radial R direction and tangential T direction during actuator force flow F MGU and / or reaction force flow F R in the opening (7) is essentially located centrally on the first surface (5) of the brake carrier component (4) and is received. [13] Electric wheel brake assembly (1) according to one or more of claims 1-12, characterized by , that each counterpart interface means (11) is designed to be flat and receiving, preferably designed as a simple axial through-opening with window shape, which is integrated into the brake carrier component (4). [14] Electric wheel brake assembly (1) according to one or more of claims 1-13, characterized by , that the interface means (11,12) are positively interlocking and rotationally secured, so that a relative rotation between the interlocking components (2,3,4) is prevented. [15] Electric wheel brake assembly (1) according to one or more of claims 1-14, characterized by, that the components (2,3,4) preferably comprise the interface means (11,12) guide means as an insertion aid for automatic support during coupling and assembly, wherein the guide means essentially comprise one or more surfaces which are arranged inclined at a specific angle α (viewed with respect to the radial direction R and / or the tangential direction T and / or the axial direction Ax) with respect to the axial simple insertion assembly direction. [16] Electric wheel brake assembly (1) according to one or more of claims 1-15, characterized by , that the receiving counterpart interface means (11) is indirectly integrated into the brake carrier component (4), for example by integrating the counterpart interface means (11) into an additional separate component that is received in the brake carrier component (4). [17] Electric wheel brake assembly (1) according to one or more of claims 1-16, characterized by , that the interface means (12) to be received at least partially encompasses the actuator drive element (8) of the electrical actuator component (2), and that it particularly preferably forms part of a pipe section (9) of the mounting component. [18] Electric wheel brake assembly (1) according to one or more of claims 1-17, characterized by, that several spaced-apart interface means (11,12) are applied in the insertion mounting direction M 1, that is, preferably parallel to the axial axis Ax, so that when the several spaced-apart interface means are all interlocked and interact between all components (2,3,4), their additive positive locking effect between the components (3,4) ensures a positive locking effect with respect to the other directions radial direction R, tangential direction, which run perpendicular to the insertion mounting direction / axial axis Ax. [19] Electric wheel brake assembly (1) according to one or more of claims 1-18, characterized byone or more unified and predefined interface codings for hardware handshake in interaction between all applicable and compatible components (2,3,4), wherein the code is preferably integrated into the component (2,3,4) interface means (11,12), wherein the code serves for automatic hardware fault protection in connection with faulty assembly or incorrect maintenance, so that fraud or failure in coupling the incompatible components is automatically prevented by the code. [20] Electric wheel brake assembly (1) according to one or more of claims 1-19, characterized by , that a projection of the mounting component (3) to be received carries interface means (12) to be received. [21] Electric wheel brake assembly (1) according to claim 20, characterized by, that the projection of the mounting component (3) includes a tip that penetrates the opening (7) in the brake carrier component (4) in the direction of M 4. [22] Electric wheel brake assembly (1) according to one or more of claims 20-21, characterized by , that the tip is a stepped tip, wherein the first surface (5) of the brake carrier component (4) comprises the opening, preferably a stepped and / or framed opening, for receiving the stepped tip projection section by section on the first surface (5) of the brake carrier component (4), and wherein a front face of the stepped tip penetrates the opening and terminates in the area of ​​the second surface (6) of the brake carrier component (4). [23] Electric wheel brake assembly (1) according to one or more of claims 1-22, characterized by, that the opening (7) comprises a window shape, which in particular may be of any window shape, but is preferably configured in the arched window shape, wherein the Romanesque arched window shape is specifically more preferred than a possible Gothic arched window shape, wherein the preferred Romanesque arched window shape may comprise an arched section into which a circular arc segment with a single predefined circular radius may be integrated, and wherein the arch connects the two opposing parallel window slits. [24] Electric wheel brake assembly (1) according to one or more of claims 1-23, characterized by, that the brake carrier component (4) essentially comprises a straight and thin-cut body made of flat sheet steel material with principal areas around a first and a second surface and / or around the opening, which is also straight and flat, such that the opening (7) and the surfaces (5,6) can essentially align with each other at substantially the same level (“align with each other”). [25] Electric wheel brake assembly (1) according to one or more of claims 1-24, characterized byComponents comprising one or more sealing means in direct or indirect proximity to or in direct or indirect cooperation with interfaces and / or the opening (7), which essentially serve to protect against unwanted ingress of foreign material, e.g. to protect against moisture ingress and / or to protect against dirt ingress, such as sealing the interior of the electrical actuator component (2) located on the first surface (5), but also, correspondingly, sealing the interior of the drum brake located on the second surface (6) of the brake carrier component (4). [26] Assembly method using an industrial transfer line TL by means of several process steps for assembling the electric wheel brake unit (1), in particular according to one or more of the preceding claims 1-20, with a mounting component (3) which is connected to a wheel brake carrier component (4) and vice versa, using a transfer line TL for stepwise industrial production, which comprises a workpiece carrier WPC for carrying the workpiece in directed one-way transfer with a transmission drive comprising a chain of several rotating rollers r in a chain, which convey a workpiece carrier WPC stepwise from one assembly station to the next assembly station for carrying out different assembly steps in a three-dimensional work area WZ, wherein the carrier component (4) is held with its axial axis Ax parallel to the force of gravity g,its second surface (6) facing downwards in the direction of gravity g on a workpiece carrier WPC, such that its first surface (5) is arranged facing upwards, feeding the mounting component (3) with translational assembly movement M1 parallel to the axial axis Ax and following gravity g into the working area WZ in the direction of the brake carrier component (4), wherein both components (3, 4) include interface means (11, 12) as a reference and coordinated adjustment with joint interaction, thereby providing a pre-arrangement step between the two interlocked components (3, 4) in the working area WZ, so that these components are both a) provisionally held pre-arranged in place relative to each other and b) still adjustable,while they are temporarily held in their positions relative to each other prior to their final fastening step, and wherein the pre-arrangement step and the final fastening step both take place in the simple "plug-in" assembly direction, which runs parallel to the assembly movement M1.

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