Brake booster device having an actuator rod

Abstract

An exemplary brake booster device includes a brake booster mounted on a vehicle component and an actuator rod that pivots in response to a force applied to the actuator through a transmission housing to move the brake booster upward. An exemplary method includes pivoting the actuator rod about a pivot axis under the action of a force in an X direction generated by the transmission housing, and during the pivoting, applying a force in a Z direction to a module mounted on a bulkhead using the actuator rod to change a position of the module mounted on the bulkhead.

Description

Technical Field

[0001] The present disclosure generally relates to a brake booster mounted to a vehicle component via at least one fastening point. Background Art

[0002] A motor vehicle can be equipped with a brake booster for increasing the pedal force. A low-pressure brake booster can be used. However, a motor vehicle can also be equipped with an electric brake booster. An electric brake booster can be particularly advantageous for use in electric vehicles and hybrid vehicles. In an electric brake booster, pulses from the brake pedal can be used to induce an alternating voltage in the coil via a combination of a coil and an iron core, thereby releasing kinetic energy. The kinetic energy supports the braking force of the pedal. German Patent No. 202010017605 describes an exemplary electric brake booster.

[0003] Transmissions for hybrid vehicles are usually of relatively large size, since they contain components and functions that are not required for transmissions for vehicles with only an internal combustion engine. For example, a transmission for a hybrid vehicle may have components and functions that make it possible to switch between different drive types, such as electric and internal combustion engines. The electric motor and necessary additional transmission units may also be installed in the transmission housing.

[0004] If a large transmission with associated housing and electric brake booster is used in a hybrid vehicle, a direct force connection between the transmission housing and the brake booster system may occur during a frontal collision due to the packaging of the transmission housing and the electric brake booster system in the X direction. However, this may lead to undesired deformation of the bulkhead, displacement of the brake pedal and deformation of the instrument panel bracket. The steering column may also move. Summary of the invention

[0005] A brake booster device according to an exemplary aspect of the present disclosure includes a brake booster mounted on a vehicle component via at least one fastening point, and an actuator rod designed to pivot about a pivot axis extending in the Y direction under the action of a force in the X direction generated by a transmission housing. The actuator rod applies a force to the brake booster in the Z direction so that the position of the brake booster can be changed. The actuator rod has an inclined arm that is supported on the vehicle component below the brake booster via at least one pivot bearing. The convex side of the actuator rod faces away from the brake booster, so that the actuator rod is configured to apply an upward force to the brake booster in the Z direction during the pivoting movement.

[0006] In another example of the above apparatus, the brake booster rotates about a rotation axis in the Y direction due to a force of the actuator rod.

[0007] In another example of any of the foregoing apparatus, the axis of rotation is located at a fastening point of the brake booster on the vehicle component.

[0008] In another example of any of the foregoing apparatus, the brake booster is displaced in the Z direction due to a force of the actuator rod.

[0009] In another example of any of the foregoing apparatus, the brake booster is displaced along a surface of the vehicle component on which the at least one fastening point is disposed.

[0010] In another example of any of the foregoing apparatus, the tilt arm is supported on the vehicle component via a fork having two fork bearings.

[0011] In another example of any of the foregoing devices, the at least one fastening point is formed by a longitudinal hole having two laterally narrowed portions, the longitudinal hole being divided into two mutually adjacent hole areas by the two laterally narrowed portions, wherein the longitudinal extent of the longitudinal hole extends in the Z direction and when a force is applied to the brake booster along the Z direction, the threaded connection moves from the first hole area to the second hole area by the widening of the narrowed portion.

[0012] A method according to another exemplary aspect of the present disclosure includes pivoting an actuator rod about a pivot axis under the action of an X-direction force generated by a transmission housing, and during the pivoting, using the actuator rod to apply a Z-direction force to a module mounted on the bulkhead to change a position of the module mounted on the bulkhead.

[0013] In another example of the above method, the X direction is horizontal and the Z direction is vertical.

[0014] In another example of any of the foregoing methods, a force is applied to the module in the Z direction via an actuator rod to displace the module in the Z direction.

[0015] In another example of any of the foregoing methods, the module is a brake booster.

[0016] In another example of any of the foregoing methods, the module remains attached to the bulkhead while the position of the module is changed by applying a force to the module in the Z direction via the actuator.

[0017] A brake booster device according to yet another exemplary aspect of the present disclosure includes, among other things, a brake booster mounted on a vehicle component and an actuator rod pivoted to move the brake booster upward in response to a force applied to the actuator through a transmission case.

[0018] In another example of the foregoing apparatus, the actuator lever includes an actuator arm pivotally coupled to a portion of the vehicle component.

[0019] In another example of any of the foregoing apparatus, at least one pivot bearing pivotably couples the actuator arm to the vehicle component.

[0020] In another example of any of the foregoing apparatus, the vehicle component is a bulkhead.

[0021] In another example of any of the foregoing apparatus, the convex side of the actuator rod faces away from the brake booster such that the actuator rod is configured to apply an upward force in the Z direction to the brake booster during the pivoting movement.

[0022] In another example of any of the foregoing apparatus, the brake booster rotates about an axis of rotation in the Y direction due to a force of the actuator rod.

[0023] In another example of any of the foregoing apparatus, the axis of rotation is located at a fastening point of the brake booster on the vehicle component.

[0024] In another example of any of the above apparatus, the brake booster is displaced in the Z direction due to a force of the actuator rod.

[0025] The embodiments, examples and alternatives of the preceding paragraphs, claims or the following description and drawings, including any of their various aspects or individual features, may be presented independently or in any combination. Features described in conjunction with one embodiment are applicable to all embodiments, unless these features are incompatible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] From the detailed description, various features and advantages of the disclosed examples will become apparent to those skilled in the art. The drawings accompanying the detailed description can be briefly described as follows:

[0027] Figure 1 A front view showing an embodiment of an electric brake booster having an actuator rod;

[0028] Figure 2 shows a schematic side view of a transmission housing and a brake booster with an actuator rod during normal operation;

[0029] Figure 3 Shown in accordance with Figure 2 The actuator rod of the brake booster first contacts the transmission housing;

[0030] Figure 4 FIG. 2 shows a brake booster according to the first embodiment after deflection caused by the actuator rod. Figure 2 Brake booster;

[0031] Figure 5 FIG. 2 shows a brake booster after deflection caused by an actuator rod according to a second embodiment. Figure 2Brake booster;

[0032] Fig. 6A An embodiment of a fastening point in normal operation is shown;

[0033] Figure 6B An embodiment of a fastening point after deflection of the brake booster is shown. DETAILED DESCRIPTION

[0034] The present disclosure is generally directed to providing a brake booster device that responds to a frontal collision with a vehicle. The brake booster device may be particularly suitable for use with an electric brake booster used in combination with a large transmission. In some variations, the brake booster device may push aside other modules mounted on the bulkhead.

[0035] In an exemplary non-limiting embodiment of the present disclosure, the brake booster is mounted on the vehicle component via at least one fastening point. The brake booster can be an electric or electromechanical brake booster. The brake booster can be mounted on the bulkhead of the motor vehicle. This is done via at least one fastening point, which can be designed as a threaded connection, for example. A plurality of fastening points can be provided. However, other modules fastened to the bulkhead, such as, for example, electronic stability program (ESP) modules, can also be moved from their position.

[0036] The actuator rod can be pivoted about a pivot axis extending in the Y direction under the action of a force generated by the transmission housing in the X direction. The actuator rod can exert a force on the brake booster in the Z direction, whereby the position of the brake booster can be changed. The X direction here represents the longitudinal direction of the motor vehicle in the vehicle coordinate system, while the Z direction represents the vertical direction. The Y direction corresponds to the transverse direction of the vehicle.

[0037] The actuator rod of the brake booster device according to an exemplary embodiment is arranged and designed so that it exerts a force on the brake booster in the Z direction when it is subjected to a force generated by the transmission housing in the X direction. Due to the action of this force in the Z direction, the brake booster moves out of the X load path in the Z direction.

[0038] In an exemplary embodiment, the brake booster can move upward in the Z direction and can slide along the upper side of the transmission housing. The actuator rod can be pivotally mounted below the brake booster and can be pivoted to apply an upward force to the brake booster in the Z direction. The actuator rod can have an inclined arm that is supported on a vehicle component below the brake booster via at least one pivot bearing. The actuator rod can have a convex side facing away from the brake booster.

[0039] If in the event of a head-on collision, the housing of the transmission of the motor vehicle can move in the X direction towards the brake booster. In response, the transmission housing can strike the actuator rod, which thus pivots about a pivot axis extending in the Y direction and thereby exerts a force on the brake booster in the Z direction. The actuator rod is thus pivoted out of a normal position in which it does not exert a force on the brake booster, into an activated position in which it pushes the brake booster away in the Z direction. The actuator rod here can already be in contact with the brake booster in the normal position. The required contact can result from the pivoting movement.

[0040] However, in the normal position, the actuator rod can be firmly fixed so that it does not wear during vehicle operation and does not generate any undesirable noise. This can be achieved in various ways by pivotally mounting the actuator rod on a vehicle component. For example, the actuator rod, like the brake booster, can be mounted on the bulkhead of the vehicle. This mounting is carried out via at least one pivot bearing.

[0041] The pivot bearing of the actuator rod can be formed as a hinge. For example, the pivot bearing can be formed by a bushing with a bolt guided through it. Parts of the bushing can be welded to the bulkhead. The pivot axis of the actuator rod is then formed by the bolt. In an alternative embodiment, the pivot bearing can be formed by a sheet metal connection with a region of less rigidity. In this region of less rigidity, the sheet metal connection bends under the force of the transmission housing so that the actuator rod pivots about the pivot axis in this region. In order to keep the actuator rod in its position during normal operation of the vehicle, the clamping force in the hinge can be selected, for example, with a suitable value. Due to the force of the transmission housing, the clamping force can be overcome and the actuator rod can pivot. Optionally or additionally, a deformable retaining clip can be provided, which keeps the actuator rod in its normal position, but gives way in the event of a sufficiently large force on the actuator rod.

[0042] In an exemplary embodiment, the actuator rod has an angled or curved area that the transmission housing contacts. In the event of a head-on collision, this contact can activate the actuator rod. This angled or curved area can be referred to as an angular arm. In one example, the angular arm can form no sharp edge on the side that contacts the transmission housing, but rather a rounded curve. This can be advantageous because the transmission housing can easily slide along the actuator rod in the event of a collision.

[0043] During the pivoting movement of the actuator rod due to the impact from the transmission housing, the tilting arm can exert a force on the brake booster in the Z direction with the end tip. The end tip can be designed to be rounded and smooth so that the actuator rod does not get stuck when in contact with the brake booster, but can slide along the brake booster. The contact side of the brake booster can also be conveniently designed to be flat in this area.

[0044] The transmission housing can contact the convex side of the tilting arm, which is supported on the vehicle component via at least one pivot bearing so that the convex side faces away from the brake booster. This form makes it possible to convert the force action in the X direction into a force on the brake booster in the Z direction. The transmission housing can slide along the convex side of the actuator rod and vice versa. In contrast, the opposite side of the tilting arm can face the brake booster or the bulkhead. This opposite side can be closed at an angle and therefore concave in design. However, this opposite side can also have other forms.

[0045] The angling or curvature of the tilt arm can be selected so that the force generated by the actuator rod on the brake booster in the Z direction is high enough to change the position of the brake booster. This is not necessarily only a force in the Z direction; rather, the force of the actuator rod on the brake booster can also have a component in the X direction. The actuator rod is designed to be so rigid and stable to withstand the forces that occur. For this purpose, the actuator rod can be designed to be relatively high strength (e.g., made of steel, sheet metal, aluminum, forged components, etc.).

[0046] In an exemplary, non-limiting embodiment, the tilting arm of the actuator rod can be supported on a vehicle component such as a bulkhead via a fork with two fork bearings. Each of these fork bearings can be formed by the pivot bearing described. As seen in the X direction, it can be provided that in the region of the fork, the actuator rod widens compared to the width of the tilting arm. The tilting arm is then designed with a relatively narrow profile, which widens significantly into the fork-shaped region with the fork bearings. In the event of a frontal collision, the transmission housing strikes the actuator rod in this widened region of the fork. The width of this region is selected so that, for example in the Y direction, there is sufficient overlap with the extent of the transmission for a robust interaction.

[0047] The widened region of the fork then has a contact surface in which the actuator rod comes into contact with the transmission housing under forces in the X-direction in substantially all possible contact situations. The contact surface here is large enough and the actuator rod is stable enough in its bearing region to also be able to compensate for the moments resulting from forces applied to the outer region of the contact surface.

[0048] Due to the pivoting movement of the actuator rod, the position of the brake booster can be changed in various ways. In the exemplary embodiment, due to the force of the actuator rod, the brake booster is rotated about an axis of rotation extending in the Y direction. This axis of rotation is particularly formed on the vehicle component on which the brake booster is mounted (for example, on the bulkhead). For example, such an axis of rotation is formed at the fastening point of the brake booster on the vehicle component. It can also be formed by two fastening points.

[0049] The actuator rod then applies a force to the brake booster in the Z direction, which causes the brake booster to rotate about this axis of rotation. The axis of rotation here is preferably selected so that the lower side of the brake booster is rotated to a position where the transmission housing can be moved in a wedging manner under the brake booster or the lower side of the brake booster can slide along the upper side of the transmission housing. As a result, the side of the brake booster facing the transmission housing is raised due to the rotation.

[0050] The axis of rotation may be located in the lower, middle or upper region of the brake booster. Furthermore, a torsion of the brake booster may cause or require a separation or at least a deformation of the fastening point. The fastening point is formed, for example, by a threaded connection. In some examples, the bulkhead may be deformed so that the brake booster may be rotated about a horizontal axis of rotation. Although the brake booster partially penetrates into the bulkhead, the brake booster does not penetrate deeply into the passenger compartment, since the transmission housing and the brake booster do not form an enclosure in the X direction.

[0051] In another exemplary embodiment, the brake booster is displaced linearly in the Z direction due to the force of the actuator rod. The brake booster is thus pushed upwards as a whole. For example, the brake booster here can be displaced along the surface of the vehicle component on which at least one fastening point is arranged. If the vehicle component is a bulkhead, the brake booster is displaced upwards along the bulkhead. If the bulkhead is inclined, the displacement also contains a component in the X direction in addition to the component in the Z direction.

[0052] Such a displacement of the brake booster may also lead to or require a separation or at least a deformation of the fastening points. The fastening points inevitably give way here, or they are specially designed to enable the brake booster to be displaced due to a specific force component in the Z direction. In an exemplary embodiment, it is provided that at least one fastening point is formed by an elongated hole with two transverse narrowings, by which the elongated hole is divided into two mutually adjacent hole regions. Here, the longitudinal extent of the elongated hole extends in the Z direction, and when a force is applied to the brake booster in the Z direction, the threaded connection moves from the first hole region to the second hole region by the widening of the narrowing. The brake booster can thus be displaced in a controlled manner without completely separating the threaded connection.

[0053] The brake booster together with the actuator rod and the fastening point of the brake booster on the vehicle component thus forms a brake booster device that can be advantageously used in a motor vehicle. In the event of a frontal collision, the force of the transmission housing in the X direction can be converted by the device into a force in the Z direction, which advantageously pushes the brake booster upwards. The brake booster can be rotated or displaced here. A combination of both movements is also possible. The load path from the transmission housing to the brake booster in the X direction is thus advantageously interrupted. The deformation of the bulkhead is minimal, and the brake pedal and the steering column are likewise not displaced or only slightly displaced in the direction of the passenger compartment. This increases the safety of the occupants in the event of a frontal collision.

[0054] Features of some exemplary embodiments are particularly suitable for use with large transmissions having large transmission housings, as are typically used in hybrid vehicles. They are also particularly suitable for use with electric brake boosters, which are also used in hybrid vehicles. Due to the size and arrangement of these vehicle components, these exemplary embodiments can be used particularly advantageously, although it can also be used advantageously with other combinations of transmissions and modules (brake boosters, ESP modules, etc.) assembled on the bulkhead.

[0055] Another exemplary aspect of the present disclosure may include a motor vehicle having an embodiment of a brake booster device. This particularly relates to hybrid vehicles having a transmission designed to switch between electric drive and another drive type. For the purposes of the present disclosure, a frontal collision refers to any collision, i.e., an accident, in which a corresponding force component is generated.

[0056] refer to Figure 1 , the exemplary brake booster 10 is part of a brake booster arrangement having an actuator rod 20. In this example, the brake booster 10 is an electric brake booster. Figure 1 The view of φ represents a view of the brake booster 10 in the X direction of the motor vehicle. The brake booster 10 is fastened to a bulkhead 30 of the motor vehicle and is connected in a known manner to the brake pedal and the brake system of the motor vehicle.

[0057] An actuator rod 20 is mounted below the brake booster 10. This actuator rod is essentially formed by an inclined arm 24, which is also mounted on the bulkhead 30 via a fork 23 with two fork bearings 21 and 22. The actuator rod 20 can be pivoted about a pivot axis 25 in the two fork bearings 21, 22. The inclined arm 24 is designed as a narrow profile that widens in the region of the fork 23. A contact surface 26 can therefore be formed in the region of the fork 23, which contact surface 26 has a width B in the Y direction that is substantially greater than the width b of the inclined arm 24 in the Y direction.

[0058] refer to Figure 2, a schematic side view of a brake booster 10 with an actuator rod 20 in normal operation of the relevant motor vehicle. In this case, the transmission housing 40 is at a distance from the actuator rod 20, wherein only the side of the transmission housing 40 facing the brake booster 10 is shown in simplified form. The front of the vehicle is located Figure 2 , which means that in the event of a frontal collision the transmission housing 40 moves towards the brake booster 10 .

[0059] The brake booster 10 is mounted on a bulkhead 30 via at least one fastening point. By way of example, two fastening points 11 and 12 formed by a screw connection one above the other are shown. To the right of the bulkhead 30 is the vehicle cabin with the driver's footwell. The bulkhead 30 is shown here only schematically and can be designed in a known manner.

[0060] The actuator rod 20 pivotably mounted on the bulkhead 30 is located below the brake booster 10. The pivot axis 25 extends in the Y direction. The tilting arm 24 of the actuator rod 20 is configured to be angled or curved, wherein the convex side of the actuator rod 20 faces the transmission housing 40, or the convex side faces away from the bulkhead 30 and the brake booster 10. The entire actuator rod 20 is shown here as being angled, so that a corresponding concave side is formed on the side facing the bulkhead 30. However, this only represents an exemplary embodiment, and the form of the actuator rod 20 can also be selected differently. For example, it can also be configured to be linear on the side facing the bulkhead 30.

[0061] The actuator rod 20 is mounted here below the brake booster 10 so that its free end 27 faces in the direction of the underside of the brake booster 10. In normal operation of the motor vehicle, this tip 27 of the actuator rod 20 is in contact with the underside of the brake booster 10 or is spaced a short distance from the underside of the brake booster 10. The actuator rod 20 protrudes from the bulkhead 30 and is held in this position by a retaining clip (not shown) or a corresponding clamping force in the fork bearings 21, 22.

[0062] In the event of a frontal collision, the transmission case 40 moves toward the actuator rod 20 until it comes into contact with the actuator rod 20 . Figure 3 This position of the transmission housing 40 is shown with reference numeral 40 ′, whereas the initial position of the transmission housing 40 is shown by dashed lines. The first contact occurs in the inclined region of the actuator rod 20 at a first contact point 50 .

[0063] In this exemplary, non-limiting embodiment, further movement of the transmission housing 40 Figure 4 ” is indicated in the figure by reference numeral 40, while the initial position of the transmission 40 is again indicated by a dashed line. Figure 4, as indicated by the smaller rotation arrow, the actuator rod 20 has been pivoted upwards about the pivot axis 25 in the direction of the brake booster 20 by the force effect of the transmission housing 40″. The free end 27 of the tilting arm 24 has pushed the underside of the brake booster 10 upwards, thereby causing a rotation of the brake booster 10 about the rotation axis 60 (larger rotation arrow). In contrast, the initial position of the brake booster 10 is shown by the dashed line.

[0064] The axis of rotation 60 extends in the Y direction and is located in the region of the bulkhead 30. Furthermore, it is located in the region of the lower fastening point 12. In this position, the transmission housing 40" rests against the actuator rod 20 at the second contact point 51. In order to rotate the brake booster 10 about the axis of rotation 60, the bulkhead 30 is already deformed in the region of the brake booster 10, since it has already given way in the direction of the passenger compartment. In contrast, the initial extent of the bulkhead 30 is shown by the dashed line. Furthermore, a rotation of the brake booster 10 can make it possible or require that the fastening points have already been disengaged or at least significantly deformed.

[0065] The force of the transmission housing 40" in the X direction has therefore been converted by the actuator rod 20 into a force on the brake booster 10 in the Z direction. Figure 4 , the transmission housing 40" is shown in a position in which the brake booster has been twisted, i.e., in a position in which the torsion contacts the actuator rod 20. In this position of the brake booster 10, the load path diameter in the X direction between the transmission housing 40" and the brake booster 10 can be increased. The transmission housing 40" can be moved under the brake booster 10, or the brake booster 10 can slide with its lower side along the upper side of the transmission housing 40".

[0066] exist Figure 5 Another exemplary, non-limiting embodiment of the present disclosure is shown in . In this example, the brake booster 10 is not rotated about the rotation axis by the actuator rod 20, but is displaced in the Z direction. After the first contact between the transmission housing and the actuator rod 20, the transmission housing 40'' moves into a position in which it contacts the actuator rod 20 at the third contact point 52 and likewise pivots it about its pivot axis 25 in the direction of the lower side of the brake booster 10 (smaller rotation arrow). By contact with the tip 27 of the tilting arm 24, the brake booster 10 has been displaced upwards in the Z direction (straight arrow) along the bulkhead 30. In contrast, the initial position of the brake booster 10 is shown by the dashed line.

[0067] The force of the transmission housing 40'' in the X direction is also converted by the actuator rod 20 into a force on the brake booster 10 in the Z direction, and in this position of the brake booster 10, the load path between the transmission housing 40'' and the brake booster 10 in the X direction is increased. The transmission housing 40'' can move under the brake booster 10, or the brake booster 10 can slide with its lower side along the upper side of the transmission housing 40''. Figure 5 , the transmission housing 40 ′″ is shown in a position where the brake booster is displaced, ie, in contact with the displacement of the actuator rod 20 .

[0068] Due to the inclination of the bulkhead 30, the displacement of the brake booster 10 also has a component in the X direction here. However, it is important that the underside of the brake booster 10 is now located at a higher position than before. This can lead to or require that the fastening points have been separated or at least deformed significantly. In contrast, no significant deformation of the bulkhead will result. In order to achieve a controlled displacement of the brake booster 10 along the bulkhead 30, special fastening points can be formed, for example. In particular, this refers to threaded connections, whose certain forces in the longitudinal direction of the elongated hole can change their position within the elongated hole.

[0069] exist Fig. 6A and 6B In the exemplary embodiment of the embodiment of the invention, the fastening point 12 has an elongated hole 70. The elongated hole 70 is located in the bulkhead, although it can also be located in the housing wall of the brake booster. Furthermore, the brake booster can be mounted on the bulkhead via a plurality of these fastening points. The inner contour of the elongated hole 70 has two transverse narrowings 71 and 72. Due to these narrowings, two hole regions 74 and 75 are formed in the elongated hole 70, and the longitudinal direction of the elongated hole 70 extends in the Z direction. The hole region 74 is therefore located below the hole region 75.

[0070] The brake booster is connected to the bulkhead via a threaded connection 73 shown in simplified form. After assembling the brake booster, as shown in FIG. Fig. 6A As shown, the threaded connection 73 is located in the lower hole region 74. In this state, the narrowings 71, 72 form a defined assembly position for the threaded connection 73.

[0071] If the brake booster is displaced significantly upwards in the Z direction due to the force of the actuator rod, the threaded connection 73 is pushed against the narrowings 71, 72. These narrowings 71, 72 are deformed due to a certain force or are broken by them, and the threaded connection 73 is displaced from the lower hole area 74 into the upper hole area 75. Thus, a controlled displacement of the brake booster along one or more longitudinal holes can be achieved.

[0072] In some examples, Figure 4 and5 can be combined so that the brake booster can be both rotated and displaced in the Z direction by the actuator rod.

[0073] The foregoing description is illustrative rather than restrictive in nature. Variations and modifications to the disclosed examples may become apparent to those skilled in the art without necessarily departing from the essence of the present disclosure. Therefore, the scope of legal protection afforded to the present disclosure can only be determined by studying the following claims.

Claims

1. A brake booster device, comprising: a brake booster, which is mounted on a vehicle component via at least one fastening point; and an actuator rod, the actuator rod being designed to pivot about a pivot axis extending in the Y direction under the action of a force in the X direction generated by the transmission housing, whereby the actuator rod applies a force in the Z direction to the brake booster, whereby the position of the brake booster can be changed, wherein the actuator rod has an inclined arm, which is supported on a vehicle component below the brake booster via at least one pivot bearing, wherein the convex side of the actuator rod faces away from the brake booster, so that the actuator rod is configured to apply an upward force in the Z direction to the brake booster during the pivoting movement; Therein, the X direction represents the longitudinal direction of the motor vehicle in the vehicle coordinate system, the Z direction represents the vertical direction, and the Y direction corresponds to the transverse direction of the vehicle.

2. The brake booster device according to claim 1, wherein: The brake booster rotates about a rotation axis in the Y direction due to the force of the actuator rod.

3. The brake booster device according to claim 2, wherein: The axis of rotation is located at the fastening point of the brake booster on the vehicle component.

4. The brake booster device according to claim 1, wherein: The brake booster is displaced in the Z direction due to the force of the actuator rod.

5. The brake booster device according to claim 1, wherein: The brake booster is displaced along the surface of the vehicle component where the at least one fastening point is provided.

6. The brake booster device according to claim 1, wherein: The tilting arm is supported on the vehicle component via a fork having two fork bearings.

7. The brake booster device according to claim 1, wherein: The at least one fastening point is formed by a longitudinal hole having two lateral narrowing portions, the longitudinal hole being divided into two hole areas adjacent to each other by the two lateral narrowing portions, wherein the longitudinal extent of the longitudinal hole extends in the Z direction, and when a force is applied to the brake booster along the Z direction, the threaded connection moves from the first hole area to the second hole area by the widening of the narrowing portions.

8. A method of operating a brake booster, comprising: pivoting the actuator rod about the pivot axis under the action of an X-direction force generated by the transmission housing; as well as applying a force in a Z direction to a brake booster mounted on the bulkhead using the actuator rod during the pivoting to change a position of the brake booster mounted on the bulkhead; wherein the convex side of the actuator rod faces away from the brake booster, so that the actuator rod is configured to apply an upward force along the Z direction to the brake booster during pivoting movement; The X direction represents the longitudinal direction of the motor vehicle in the vehicle coordinate system, and the Z direction represents the vertical direction.

9. The method according to claim 8, wherein: The X direction is horizontal and the Z direction is vertical.

10. The method according to claim 8, wherein: Applying a force to the brake booster in the Z direction through the actuator rod causes the brake booster to be displaced in the Z direction.

11. The method according to claim 8, wherein: The brake booster remains attached to the bulkhead when the actuator rod applies a force to the brake booster in the Z direction to change a position of the brake booster.

12. A brake booster device comprising: Brake boosters mounted on vehicle components; and an actuator rod that pivots in response to a force applied to the actuator rod by the transmission housing to move the brake booster upward in the Z direction; wherein the convex side of the actuator rod faces away from the brake booster, so that the actuator rod is configured to apply an upward force in the Z direction to the brake booster during the pivoting movement; The Z direction represents the vertical direction.

13. The brake booster device according to claim 12, wherein: The actuator lever includes an actuator arm pivotably connected to a portion of the vehicle component.

14. The brake booster device according to claim 13, wherein: At least one pivot bearing pivotably connects the actuator arm to the vehicle component.

15. The brake booster device according to claim 13, wherein: The vehicle component is a bulkhead.

16. The brake booster device according to claim 12, wherein: Due to the force of the actuator rod, the brake booster rotates about a rotation axis in a Y direction, which corresponds to a lateral direction of the vehicle.

17. The brake booster device according to claim 16, wherein: The axis of rotation is located at the fastening point of the brake booster on the vehicle component.

18. The brake booster device according to claim 16, wherein: The brake booster is displaced in the Z direction due to the force of the actuator rod.

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