Car access assembly with two strain gauges oriented differently

Abstract

To provide a handle with a sophisticated design without any conspicuous elements.SOLUTION: The car access assembly includes a support blade 3 extending along a reference plane 5, a main strain gauge 9 mounted on the support blade 3 and configured to measure its extension or contraction according to a main direction 11 in the reference plane 5, an additional strain gauge 13 mounted on the support blade 3 for extension at least partially inclined with respect to the reference plane 5, and a handle cover 15, the handle cover 15 having a main actuation area configured to be manually actuated in or parallel to the main direction 11 to trigger the main strain gauge 9, and an additional actuation area configured to be manually actuated in or parallel to an additional direction 21 transverse to the main direction 11 to trigger the additional strain gauge 13.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a car access assembly in which two sets of strain gauges, a main strain gauge and an additional strain gauge, are arranged in different directions, and in particular, the additional strain gauges are arranged in a direction oblique to the main strain gauges. [Background technology]

[0002] Car access assemblies in motor vehicles are known to incorporate a variety of commands, including release, lock, or automatic door open. Thus, the car access assembly includes various sensors linked to the control assembly of the automobile. This arrangement is satisfactory in that it allows the user to utilize various commands at the same location. Summary of the Invention [Problem to be solved by the invention]

[0003] The handle design of this car access assembly is required to be clean. The objective is to provide a sleek handle design without any prominent elements. Such a handle can be wing-shaped and painted in gloss black. Another trend is to make the car access assembly almost invisible by locating it in the B-pillar (center pillar) or C-pillar area, which is very compact and reinforced to withstand side impacts.

[0004] Thus, integrating a car access assembly into this area of ​​the automobile door is a very challenging design imperative, and when integrating multiple functions into the handle, this becomes even more challenging both from a packaging standpoint and an electronics standpoint.

[0005] The present invention aims to overcome all or some of the above disadvantages. [Means for solving the problem]

[0006] To this end, the car access assembly of the present invention comprises: a support blade extending along a reference plane and configured to be attached to a structural support of a vehicle door; a primary strain gauge attached to the support blade and configured to measure its expansion or contraction along a primary direction in the reference plane; an additional strain gauge mounted on the support blade so as to extend at least partially at an angle to the reference plane and configured to measure the expansion or contraction thereof along a secondary direction not collinear with the primary direction; a handle cover configured to be attached around the support blade, the main strain gauge, and the additional strain gauge; The handle cover is provided with a primary actuation area configured to be manually actuated along or parallel to the primary direction to trigger the primary strain gauge, and an additional actuation area configured to be manually actuated along or parallel to an additional direction that intersects the primary direction to actuate the additional strain gauge.

[0007] This configuration allows easy differentiation between the various commands of a single user who manually activates the handle cover. Indeed, the respective orientation of the main and additional strain gauges facilitates the interpretation of the measured signals. This reduces the risk of measurement signals that may lead to doubts about the actual operating area being used. Such a construction allows for a compact car access assembly, placement of additional strain gauges near the primary strain gauge, and measurement of multiple different user manual inputs.

[0008] According to one aspect of the invention, the handle cover is provided with a primary transmission part that contacts the support blade in an area of ​​the support blade that aligns or couples with the location of the primary strain gauge along the primary direction, the primary transmission part being configured to apply a strain or load to the support blade such that the primary strain gauge expands or contracts along the primary direction when the primary actuation area is manually actuated along or parallel to the primary direction. This configuration allows establishing a link between the manual movement of a single user in a primary working area along a primary direction and the triggering of the primary strain gauges.

[0009] In fact, the support blade is attached to the structural support of the car door and appears to be held in position by the structural support, while the handle cover is loaded by the user's hand. Therefore, to obtain reliable commands, a cooperation between the support blade and the handle cover that facilitates the triggering of the primary strain gauge is required. According to one aspect of the invention, the primary transmission is a pin extending from the handle cover. Preferably, the pin extends transversely to a reference plane when the handle cover is attached around the support blade. The primary transmission may be spaced apart from the primary strain gauge along the primary direction. In this case, the main transmission part can cooperate with the face of the support blade on which the main strain gauge is arranged. Alternatively, the primary transmission part may cooperate with an opposite surface of the support blade opposite to the surface on which the primary strain gauge is located, in which case the primary transmission part may be below the primary strain gauge.

[0010] According to one aspect of the present invention, the primary strain gauge extends in a plane parallel to the reference surface. According to one aspect of the invention, the handle cover is provided with an additional transmission portion that contacts the support blade in an area of ​​the support blade that is aligned or coupled with the location of the additional strain gauge along the additional direction, the additional transmission portion configured to apply a strain to the support blade to expand or contract the additional strain gauge when the additional actuation area is manually actuated along or parallel to the additional direction. This configuration allows manual action by a single user in additional actuation regions in additional directions to be linked to the triggering of additional strain gauges.

[0011] According to one aspect of the present invention, the additional transmission part is a pin extending from the handle cover. This additional transmission may cooperate with an opposite face of the support blade opposite to the face on which the additional strain gauge is located, in which case the additional transmission may be below the additional strain gauge. Alternatively, the additional transmission part may be spaced apart from the additional strain gauge according to an additional direction, in which case the additional transmission part may cooperate with the face of the support blade on which the additional strain gauge is arranged.

[0012] According to one aspect of the invention, a handle cover includes an upper cover and a lower cover that are configured to cooperate, for example, by including corresponding portions of a snap-in mechanism. Preferably, the upper cover includes the main transmission portion and the lower cover includes the additional transmission portion.

[0013] According to one aspect of the invention, the additional strain gauge extends at least partially in a curved manner. This configuration allows the additional strain gauges to be triggered not only in additional directions, but also along other directions tangent to the curvature of the additional strain gauges. The signals perceived along these other directions may be more or less significant depending on the curvature of the additional strain gauges. The effect of combining the primary and additional strain gauges is to capture forces in three dimensions and ultimately filter out forces from incorrect or undesired directions not related to the primary function that could result in erroneous signals or malfunctions. Indeed, it is clear whether only the primary strain gauge is triggered, only the additional strain gauge, or both simultaneously. The strength of the signal generated by the additional strain gauge determines from which direction the actuation comes.

[0014] In response to actuation in the additional direction, a strong or related signal is received, but the additional strain gauge can be bent to receive weaker signals from other directions. If an erroneous signal is detected, both the primary and additional strain gauges are activated simultaneously, so the signal can be considered unintentional. Conversely, the additional strain gauges can extend in the plane and be triggered only along the additional directions. This alternative structure is simpler and still provides the benefits of placing the additional strain gauges close to the primary strain gauge.

[0015] According to one aspect of the invention, the additional strain gauge has a portion that extends along the reference surface. With this configuration, in addition to the signal from the main strain gauge, the force applied by the user along a direction within the reference plane can also be detected by the additional strain gauge. Typically, this can help distinguish between a user applying force along a primary direction to a primary actuation area and a user gripping the handle or using the handle as a hook on a bag. Combining the signal from the primary strain gauge with the signal from the additional strain gauge helps to more accurately determine the user command.

[0016] According to one aspect of the invention, the portion of the additional strain gauge that extends along the reference plane is parallel to the main direction. The portion is therefore oriented to detect expansion or contraction parallel to the principal direction in the reference plane. For example, this configuration can be useful for detecting whether a user is actually trying to activate the primary actuation region: if both the signals received at the primary strain gauge and at the additional strain gauge correspond to an extension, with the signal from the primary strain gauge being more relevant and stronger, this can lead to the conclusion that the command is correct.

[0017] Conversely, if the additional strain gauge signal is more relevant and stronger, then there may be an error and the handle cover may be operating in an inappropriate area. Naturally, other interpretations of both signals are possible depending on the geometry of the car access assembly and the location and sensitivity of the sensors.

[0018] According to one aspect of the invention, the support blade includes an additional extension portion extending at an angle at least partially to the reference plane, and the additional strain gauge is at least partially attached to said additional extension portion. The at least partial inclined extension of the additional strain gauge is defined by a shape of the additional extension relative to a reference surface. In other words, the support blade extends primarily along the reference plane, but also has additional extensions pointing in a different direction. This configuration allows additional strain gauges to be easily attached to the support blade in the correct orientation.

[0019] According to one aspect of the invention, a car access assembly includes a flexible circuit board mounted on a support blade and configured to house a primary strain gauge and an additional strain gauge. In other words, the flexible circuit board is disposed between the support blade on one side and the primary and additional strain gauges on the other side. This structure simplifies the electrical connection of the primary and additional strain gauges for tracking signals.

[0020] According to one aspect of the invention, a flexible circuit board includes a connection portion configured to be connected to a control assembly of an automobile. Preferably, the support blade has a through opening for passing the connection.In particular, the control assembly of the motor vehicle is mounted on a structural support.

[0021] According to one aspect of the present invention, the car access assembly is provided with a fixing mechanism for mounting on a corresponding location of the structural support, for example, the fixing mechanism includes a screw and a guide opening for the screw in the support blade.

[0022] According to one aspect of the invention, the support blade includes a major extension portion extending at least partially at an angle relative to a reference plane, and a major strain gauge is aligned with said major extension portion along a major direction. This geometric structure strengthens the structure of the support blade and also serves as a base element for the assembly of other components within the handle cover, which in combination with the handle cover can also transmit user forces by contact with the primary working area.

[0023] According to one aspect of the present invention, a handle cover includes: a base portion extending along a reference plane and at least partially surrounding the support blade; an actuating portion coupled to the base portion and extending transversely relative to the base portion, the actuating portion including a primary actuating area and an additional actuating area and actuable along or parallel to the primary direction and the additional direction. This configuration defines the shape of the handle and the orientation of the actuation parts to facilitate the transmission of commands to the primary and additional strain gauges.

[0024] According to one aspect of the invention, the active portion has a main edge extending parallel to the reference plane and transverse to the main direction to define a main active area, and the active portion has an additional edge extending transverse to the main edge and directed towards the base portion to define an additional active area. The handle cover has a wing shape, with lateral portions defined by additional edges acting as additional working areas and straight portions defined by major edges acting as the main working areas.

[0025] According to one aspect of the invention, the actuation portion starting from the main edge is manually operable by a user parallel to the main direction, preferably such that, from the user's point of view, a first function is associated when pushing and a second function is associated when pulling. According to one aspect of the invention, the actuation portion originating from the additional edge is manually operable by a user in a direction perpendicular to the direction of the additional edge. The user can activate a third function by tapping or pressing the additional edge. The direction perpendicular to the additional edge corresponds to the additional direction. The first function is the car door auto-open command. The second function is car door opening, which allows the user to pull the car door by hand. The third function is car locking and unlocking. The user may also reprogram these functions through the vehicle's control assembly.

[0026] According to one aspect of the invention, the actuation portion may include an optional detection portion configured to be linked to a dedicated portion of the flexible circuit board. The optional detector is used as a redundant sensor for improved signal filtering and may include, for example, a capacitive sensor. Optional detectors may also include LED modules, NFC approach sensors, and / or light guides or lane lighting.

[0027] According to one aspect of the present invention, the car access assembly includes a resin configured to fill the gap between the handle cover and the remaining interior elements of the car access assembly, which acts like a protective glove that seals and waterproofs the car access assembly.

[0028] The present invention also relates to a vehicle door comprising a structural support and a car access assembly as described above, the support blade being attached to the structural support of the vehicle door, the structural support being part of or attached to a pillar of the vehicle door. Since the main strain gauge and the additional strain gauge can be arranged close to each other in the handle cover, there is no difficulty in mounting the car access assembly to a pillar of the automobile, in particular, said pillar corresponds to a B-pillar or a C-pillar. The invention also relates to a motor vehicle equipped with at least one vehicle door as described above. The various non-conflicting aspects defined above may be combined.The invention will be better understood from the detailed description given below with reference to the accompanying drawings, in which:FIG. [Brief description of the drawings]

[0029] [Figure 1] 1 is an exploded perspective view of a car access assembly according to a first embodiment of the present invention; [Diagram 2] FIG. 1 is a perspective view of a car access assembly of a first embodiment. [Diagram 3] FIG. 2 is a perspective view showing details of the car access assembly including the support plate of the first embodiment. [Figure 4] FIG. 11 is a perspective view showing details of a car access assembly according to a second embodiment of the present invention. [Diagram 5] 1 is a perspective view of a support plate to which a flexible circuit board and two sets of strain gauges are attached according to an embodiment of the present invention; [Figure 6] FIG. 2 is a perspective view of a support plate and a structural support of an automobile in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] In the following detailed description of the invention, the same elements or elements performing the same functions are designated by the same reference numerals in the various figures in order to facilitate understanding of the invention. As shown in Figures 1 to 6, the car access assembly 1 comprises a support blade 3 extending along a reference plane 5, the support blade 3 being configured to be attached to a structural support 7 of the door of the automobile.

[0031] The car access assembly 1 comprises a primary strain gauge 9 mounted on the support blade 3 and configured to measure the expansion or contraction of the primary strain gauge 9 along a primary direction 11 in a reference plane 5 . The car access assembly 1 comprises an additional strain gauge 13 mounted on the support blade 3 and configured to extend at least partially obliquely relative to the reference plane 5. The additional strain gauge 13 is configured to measure the extension or contraction of the additional strain gauge 13. The car access assembly 1 includes a handle cover 15 configured to be mounted around the support blade 3 , the primary strain gauge 9 and the additional strain gauge 13 .

[0032] As shown in Figures 1 and 2, the handle cover 15 has a main actuation area 17 configured to be manually actuated along or parallel to the main direction 11 to trigger the main strain gauge 9, and an additional actuation area 19 configured to be manually actuated along or parallel to an additional direction 21 intersecting the main direction 11 to trigger the additional strain gauge 13.

[0033] The handle cover 15 is provided with a main transmission part 23 which contacts the support blade 3 in an area of ​​the support blade 3 which aligns with or merges with the position of the main strain gauge 9 along the main direction 11, as shown in FIG. The main transmission part 23 is configured to apply a strain to the support blade 3 to cause the main strain gauge 9 to expand or contract along the main direction 11 when the main operating area 17 is manually actuated along or parallel to the main direction 11. This establishes a link between the user's manual manipulation in the primary actuation area 17 along the primary direction 11 and the triggering of the primary strain gauges 9 .

[0034] In fact, the support blade 3 is attached to a structural support 7 of the car door, so that the support blade 3 is kept in position by the structural support 7, while the handle cover 15 is loaded by the user's hand. Therefore, to obtain reliable commands, the support blade 3 and the handle cover 15 must cooperate to facilitate triggering of the main strain gauge 9. The main transmission part 23 is a pin extending from the handle cover 15. This pin extends transversely to the reference plane 5 when the handle cover 15 is attached around the support blade 3. The main transmission part 23 is spaced apart from the main strain gauges 9 along the main direction 11. In this case, the main transmission part 23 cooperates with the face of the support blade 3 on which the main strain gauges 9 are arranged. The main strain gauge 9 extends in a plane parallel to the reference surface 5 .

[0035] The handle cover 15 is provided with an additional transmission part 25, as shown in FIG. 4, which is aligned with the position of the additional strain gauge 13 along the additional direction 21 or contacts the support blade 3 in the area of ​​the support blade 3 to which it is connected. This additional transmission part 25 is configured to apply a strain to the support blade 3 to extend or contract the additional strain gauge 13 when the additional actuating area 19 is manually actuated along or parallel to the additional direction 21. This links the user's manual manipulation at the additional actuation areas 19 along the additional directions 21 to the triggering of additional strain gauges 13 . The additional transmission part 25 is a pin extending from the handle cover 15. The additional transmission part 25 cooperates with a facing surface of the support blade 3 opposite to the surface on which the additional strain gauge 13 is arranged. In this case, the additional transmission part 25 is located below the additional strain gauge 13.

[0036] The handle cover 15 is comprised of an upper cover 27 and a lower cover 29 that are configured to cooperate with each other, for example by including corresponding portions of a snap-in mechanism, as shown in Figure 1. The upper cover 27 includes the main transmission part 23, and the lower cover 29 includes the additional transmission part 25 as shown in Figure 4. The additional strain gauge 13 extends at least partially in a curved manner, which allows the additional strain gauge 13 to be triggered not only along the additional direction 21 but also along other directions tangent to the curvature of the additional strain gauge 13.

[0037] The signals perceived along these other directions may be more or less significant depending on the curvature of the additional strain gauge 13 . The combined effect of the main strain gauge 9 and the additional strain gauge 13 is to capture forces in three dimensions and ultimately filter out forces coming from undesirable directions not related to the main function that could result in false signals or even erroneous operation. Indeed, it is clear whether only the main strain gauge 9 is triggered, only the additional strain gauge 13, or both are triggered simultaneously. The strength of the signal generated by the additional strain gauge 13 determines in which direction the actuation takes place.

[0038] The additional strain gauge 13 can be bent such that upon actuation in the additional direction 21 a strong or adequate signal is received, but in other directions a weaker signal is received. If an erroneous signal is detected, both the main strain gauge 9 and the additional strain gauge 13 are activated simultaneously, so the signal can be considered unintentional. The additional strain gauge 13 has a portion 31 that extends along the reference surface 5. This allows it to detect a force applied by the user along a direction within the reference surface 5 in addition to the signal from the main strain gauge 9. Typically, this helps distinguish between a user exerting a force on the primary actuation area 17 along the primary direction 11 and a user gripping the handle or using the handle as a hook for a bag.

[0039] Combining the signals from the main strain gauge 9 and the additional strain gauge 13 helps to determine the user command more accurately. A portion 31 of the additional strain gauge 13 extending along the reference plane 5 is parallel to the main direction 11. Said portion 31 is oriented to detect an expansion or contraction parallel to the main direction 11 in the reference plane 5.

[0040] As an example, this configuration serves to detect whether a user is actually trying to actuate the main actuation area 17. If both the signal received by the main strain gauge 9 and the signal received by the additional strain gauge 13 correspond to "extension", and the signal from the main strain gauge 9 is more relevant or stronger, this may lead to the conclusion that the command is correct. Conversely, if the signal of the additional strain gauge 13 is more relevant or stronger, it may mean that there is an erroneous signal and the handle cover is operating in an inappropriate area. Of course, other interpretations of both signals are possible depending on the shape of the car access assembly 1 and the location and sensitivity of the sensors.

[0041] The support blade 3 comprises an additional extension 33 which extends at an incline at least partially with respect to the reference plane 5, and the additional strain gauge 13 is at least partially attached to said additional extension 33. The at least partial inclined extension of the additional strain gauge 13 is defined by the shape of the additional extension 33 with respect to the reference plane 5. In other words, the support blade 3 extends mainly along the reference plane 5, but also has an additional extension 33 pointing in a different direction. This configuration allows for easy attachment of additional strain gauges 13 to the support blade 3 in the correct orientation.

[0042] The car access assembly 1 includes a flexible circuit board 35 attached to the support blade 3 and configured to house the primary strain gauge 9 and the additional strain gauge 13, as shown in Figures 5 and 6. In other words, the flexible circuit board 35 is arranged between the support blade 3 on one side and the main strain gauge 9 and the additional strain gauge 13 on the other side. The flexible circuit board 35 includes a connection section 37 configured to be connected to a control assembly 39 of the vehicle. The support blade 3 is provided with a through opening 41 for passing the connecting section 37. The vehicle control assembly 39 is mounted on the structural support 7.

[0043] The connection section 37 is provided with a fastening mechanism 43 which is attached to a corresponding arrangement on the structural support 7. For example, this fastening mechanism 43 consists of a screw in the support blade 3 and a guide opening for the screw. The support blade 3 is provided with a main extension 45 which extends at least partially at an angle to the reference plane 5 , and the main strain gauges 9 are aligned with the main extension 45 along the main direction 11 .

[0044] The handle cover 15 functionally comprises a base portion 47 that extends along the reference plane 5 and at least partially surrounds the support blade 3, as shown in FIG. The handle cover 15 also includes an actuation portion 49 connected to the base portion 47 and extending transversely relative to the base portion 47. The actuation portion 49 includes a primary actuation area 17 and an additional actuation area 19 and is actuable along or parallel to the primary direction 11 and the additional direction 21.

[0045] The active portion 49 comprises a main edge 51 extending parallel to the reference plane 5 and transversely to the main direction 11 to define a main active area 17 . The working portion 49 also includes an additional edge 53 extending transversely to the main edge 51 and oriented towards the base portion 47 to define an additional working area 19 .

[0046] The handle cover 15 has a wing shape, the transverse portions of which are defined by additional edges 53 and the straight portions of which are defined by main edges 51 . The actuating portion 49, starting from the main edge 51, can be manually manipulated by a user parallel to the main direction 11. From the user's point of view, a first function is associated when pushing the actuating portion 49 and a second function is associated when pulling it. The actuation portion 49, which starts from the additional edge 53, is manually operable by a user in a direction transverse to the direction of the additional edge 53. The user can actuate a third function by tapping or pressing the additional edge 53. The direction extending transverse to this additional edge 53 corresponds to the additional direction 21.

[0047] The first function is the car door auto-open command. The second function is car door opening, which allows the user to pull the car door by hand. The third function is car locking and unlocking. These functions may also be reprogrammed by the user through the vehicle's control assembly 39.

[0048] The actuation portion 49 may include an optional sensing portion 55 configured to be linked to a dedicated portion of the flexible circuit board 35 as shown in Figures 5 and 6. The optional sensing portion 55 is used as a redundant sensor for improved signal filtering. The optional sensing portion 55 may include, for example, a capacitance sensor. The optional detection unit 55 may also include an LED module, an NFC approach sensor, and / or a light guide or interior light.

[0049] The car access assembly 1 is constructed with a resin that is configured to fill the gap between the handle cover and the remaining interior elements of the car access assembly 1. This acts like a protective glove that makes the car access assembly 1 sealed and durable. The resulting vehicle door comprises a structural support 7 and a car access assembly 1 as previously described, with the support blade 3 attached to the vehicle door structural support 7, said structural support 7 being part of or attached to a vehicle door pillar.

[0050] The main strain gauge 9 and the additional strain gauge 13 can be arranged close to each other in the handle cover 15, so that there is no difficulty in mounting the car access assembly 1 on a pillar of a motor vehicle. In particular, said pillar corresponds to a B-pillar or a C-pillar.

[0051] The vehicle may include multiple vehicle doors as described above. The steering wheel of the above-mentioned car can have a neat design with various commands integrated in a small space. Indeed, the respective orientation of the main strain gauge 9 and the additional strain gauge 13 makes it easier to interpret the measured signals. There is less risk of measurement signals that would call into question the operating range actually used. Of course, the invention is not limited to the embodiments described above by way of example, but it encompasses all variants. [Explanation of symbols]

[0052] 1 Car Access Assembly 3 Support Blade 5 Reference plane 7 Structural support 9 Main strain gauge 11 Primary Direction 13 Additional strain gauges 15 Steering wheel cover 17 Main operating area 19 Additional operating areas 21 Additional Directions 23 Main Transmission Section 25 Additional Transmission Unit 27 Upper cover 29 Lower cover 33 Additional extensions 45 Main extension 49 Working Parts 51 Main Edge 53 Extra Edge

Claims

1. a support blade (3) extending along a reference plane (5) and configured to be attached to a structural support (7) of a vehicle door; a primary strain gauge (9) attached to said support blade (3) and configured to measure its expansion or contraction along a primary direction (11) in said reference plane (5); an additional strain gauge (13) mounted on the support blade (3) so as to extend at an angle at least partially to the reference plane (5) and configured to measure its expansion or contraction; a handle cover (15) configured to be attached around the support blade (3), the main strain gauge (9), and the additional strain gauge (13); The handle cover (15) has a main actuation area (17) configured to be manually actuated along or parallel to the main direction (11) to trigger the main strain gauge (9), and an additional actuation area (19) configured to be manually actuated along or parallel to an additional direction (21) intersecting the main direction (11) to trigger the additional strain gauge (13).

2. 2. A car access assembly (1) according to claim 1, wherein the handle cover (15) is provided with a main transmission part (23) in contact with the support blade (3) in a region of the support blade (3) that is aligned or merges with a position of the main strain gauge (9) along the main direction (11), The car access assembly (1), characterized in that the main transmission part (23) is configured to apply a strain to the support blade (3) to extend or contract the main strain gauge (9) along the main direction (11) when the main actuation area (17) is manually actuated along or parallel to the main direction (11).

3. 2. A car access assembly (1) according to claim 1, characterized in that the main strain gauges (9) extend in a plane parallel to the reference surface (5).

4. 2. The car access assembly (1) according to claim 1, wherein the handle cover (15) is provided with an additional transmission part (25) in contact with the support blade (3) in a region of the support blade (3) that is aligned or coupled with a position of an additional strain gauge (13) along the additional direction (21), The car access assembly (1), characterized in that the additional transmission portion (25) is configured to apply a strain to the support blade (3) to extend or contract the additional strain gauge (13) when the additional operating area (19) is manually actuated along or parallel to the additional direction (21).

5. 2. A car access assembly (1) according to claim 1, characterized in that the additional strain gauge (13) extends at least partially in a curved manner.

6. 6. A car access assembly (1) according to claim 5, characterized in that the additional strain gauge (13) has a portion (31) extending along the reference surface (5).

7. 7. A car access assembly (1) as claimed in claim 6, characterized in that the portion (31) of the additional strain gauge (13) extending along the reference plane (5) is parallel to the main direction (11).

8. A car access assembly (1) as described in claim 1, characterized in that the support blade (3) includes an additional extension portion (33) extending at an angle at least partially to the base plane (5), and the additional strain gauge (13) is at least partially attached to the additional extension portion (33).

9. 2. The car access assembly (1) of claim 1, characterized in that it includes a flexible circuit board (35) mounted on the support blade (3) and configured to accommodate the main strain gauge (9) and the additional strain gauge (13).

10. 2. A car access assembly (1) as claimed in claim 1, characterized in that the support blade (3) includes, at least in part, a main extension portion (45) extending at an angle to the reference plane (5), and the main strain gauge (9) is aligned with the main extension portion (45) along the main direction (11).

11. 2. A car access assembly (1) according to claim 1, wherein the handle cover (15) comprises: a base portion (47) extending along said reference plane (5) and at least partially surrounding said support blade (3); an actuation portion (49) connected to said base portion (47) and extending transversely thereto; The car access assembly (1), characterized in that the actuating portion (49) includes the main actuating area (17) and the additional actuating area (19) and is actuable along or parallel to the main direction (11) and the additional direction (21).

12. 12. A car access assembly (1) according to claim 11, wherein the working portion (49) has an additional edge (53) extending transversely to the main direction (11) and transversely to a main edge (51) and oriented towards the base portion (47) to define the main working area (17), The car access assembly (1), characterized in that the working portion (49) has an additional edge (53) extending transversely to the main edge (51) and oriented towards the base portion (47) to define the additional working area (19).

13. A motor vehicle door comprising the structural support (7) according to any one of claims 1 to 12 and the car access assembly (1), A vehicle door, characterized in that the support blade (3) is attached to the structural support (7) of the vehicle door, the structural support (7) being part of a pillar of the vehicle door or attached to the pillar.

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