Wiper device, in particular for a motor vehicle, and method, control and computer program for guiding a wiper blade over a windscreen

Abstract

Wiper device (2), in particular for a motor vehicle (1), comprising a wiper blade (8, 9) which, in the mounted state, can be guided over a window (3) upon actuation, and a drive (11, 12) for actuating the wiper blade (8, 9). It is proposed that the drive (11, 12) be designed such that, upon actuation according to a first actuation mode (S1, S5), the wiper blade (8, 9) can be guided in an actuation direction (20) up to a first turning position (P1), that at least one further actuation mode (S2, S3, S4) is provided, and that, upon actuation according to the at least one further actuation mode (S2, S3, S4), the wiper blade (8, 9) can be guided into at least one further turning position (P2, P3, P4), which, viewed in the actuation direction (20), lies before the first turning position (P1).Furthermore, a method for actuating a wiper blade (8, 9) of a wiper device (2), in particular a wiper device (2) of a motor vehicle (1), by means of a drive (11, 12) is specified. A controller and a computer program are also specified.

Description

State of the art

[0001] The invention relates to a wiper device with a wiper blade, particularly for a motor vehicle. Specifically, the invention relates to the field of passenger cars (PCs) and trucks (Trucks).

[0002] WO 2022 / 178353 discloses a wiper blade having an air duct for blowing air directed to the wiper blade by a fan onto a vehicle windshield. This is intended, among other things, to reduce streaks and smears left behind by the wiper blade. Disclosure of the invention

[0003] The wiper device according to the invention with the features of the main claim, the method with the features of claim 11, the controller with the features of claim 12, and the computer program with the features of claim 13 have the advantage of enabling an improved design and functionality. This allows for improved functionality of the wiper blade when wiping a windshield, particularly when the wiper blade reverses its motion.

[0004] The measures listed in the subclaims also result in advantageous further developments and improvements of the wiping device, the method, the control and the computer program.

[0005] It is advantageous if several additional actuation modes are provided and if the turning positions of the several additional actuation modes differ from one another in the actuation direction. This means that different turning positions can be used. For example, the wiper blade can be moved to the different turning positions one after the other using a wiper arm with directly consecutive actuations. If the number of actuations is sufficiently high, then all actuation modes can be used to move to all of the intended turning positions, preferably one after the other. However, it is also possible, for example, to only use some of the available actuation modes within a cycle. After a cycle, all or some of the turning positions can be moved to again.

[0006] It is advantageous for the drive to be configured such that at least some of the several additional actuation modes are executed immediately after the first actuation mode, provided the wiper blade is actuated frequently enough. For example, during continuous operation, all actuation modes can be cycled through. This, in particular, prevents the wiper blade from drawing back a film of water onto the wiped field of view.

[0007] It is advantageous that the turning position of a further actuation mode lies behind the turning position of a further actuation mode that immediately follows this further actuation mode in terms of the direction of actuation. This allows the turning position reached by the wiper blade to shift increasingly counter to the direction of actuation within a cycle. As a result, the wiping area at this end becomes increasingly shorter, thus preventing the water that was wiped out of the field of vision from being drawn back, particularly during an earlier actuation of the wiper blade.

[0008] It is advantageous that the first turning position is at a first turning value, in particular a first turning angle, and that the drive is configured such that the turning value, in particular a turning angle, determined in a further operating mode immediately following the first operating mode is given as a differential value determined from the first turning value, in particular the first turning angle, as the minuend and a first shortening value as the subtrahend. This allows for the realization of an advantageous control system for controlling, for example, a drive motor.

[0009] In a preferred embodiment, the wiper blade is adjusted by the drive via a wiper arm according to a pendulum motion, with a pivot point for the wiper arm being predetermined. The drive can have an output shaft at the pivot point. The drive can also act at least indirectly on an axis at the pivot point on which the wiper arm is mounted.

[0010] However, the proposed solution, with appropriate modifications if necessary, is also suitable for wiper drives other than those that specify a pivot point for a wiper arm. Another area of ​​application includes linear and rotary drives that guide the wiper blade linearly across the windshield and can rotate independently of the linear movement.

[0011] In a preferred embodiment, the turning value can be considered a turning angle that describes a position on the windshield in radians or an angle in degrees or the like. The turning value or turning angle can indicate an absolute position on the windshield, which is not necessarily equal to the distance traveled by the wiper blade during actuation or the angular degrees swept. However, the turning value or turning angle can also indicate a relative position on the windshield, which depends on the initial position of the wiper blade.

[0012] It is advantageous that several further operating modes are provided and that the drive is configured such that, in a further operating mode immediately following a further operating mode, the further turning value, in particular further turning angle, is given as a differential value determined from the first turning value, in particular the first turning angle, as the minuend and a further shortening value as the subtrahend. This allows for an advantageous determination of the further turning position. Furthermore, an advantageous control of the drive can be achieved.

[0013] It is advantageous that the shortening values ​​of the several additional operating modes increase according to the direct temporal sequence of the additional operating modes. The immediately subsequent shortening value for a further turning position is always selected to be greater than the shortening value for the turning position just reached or passed. This allows each subsequent turning position to be determined over time with increasingly smaller turning values, especially turning angles, until the first turning position is reached. The first turning position is then again determined by a maximum turning angle.

[0014] The shortening values ​​are not necessarily fixed. For example, the shortening values ​​can depend on other parameters, such as vehicle speed and / or wiping frequency.

[0015] In this embodiment, the first turning position has the largest, i.e., maximum, turning value or turning angle relative to the one or more other turning positions. However, this does not preclude the possibility of adjusting the first turning position within certain limits. For example, a first turning position can be adjustable to set or optimize a clear field of vision for the driver. Furthermore, the first turning position can depend on other parameters, such as a currently selected wiping frequency.

[0016] It is advantageous that the at least one shortening value is predetermined such that the wiper blade turns at the further turning value, in particular the further turning angle, determined by the shortening value, at least substantially before a film of water is drawn back over the windshield by the wiper blade during the turn at the previous first turning value, in particular the first turning angle, or previous further turning values, in particular the further turning angles. This prevents a sticking and slipping effect.

[0017] A sticking and slipping effect can occur when the wiper blade is guided over the previously wiped area of ​​the windshield and then comes into contact with a film of water provided on the edge of the previously wiped area. The film of water can briefly reduce friction significantly, causing the wiper blade to slide over the part of the windshield wetted with the film of water. Such a film of water can occur in particular when the wiper blade, after reversing its movement, pulls some of the water wiped to the side back into the swept area. The proposed solution, which may be suitably further developed, can prevent the wiper blade from coming into significant contact with such a film of water, at least in the other operating modes, so that the sticking and slipping effect then prevents it from occurring as much as possible.

[0018] It is advantageous for the drive to be configured such that the first operating mode and at least one further operating mode, or a portion of the further operating modes, form a wiping cycle that is repeated in the same or a modified manner if the wiper blade is actuated frequently enough. This can be the case, for example, during continuous operation of the wiping device. Thus, improved operation can be achieved even over a long period of time, while at least during the further operating modes, adhesion and slipping effects are avoided.

[0019] It is advantageous that the first pivot position and at least one further pivot position are implemented at least at an upper pivot position for the wiper blade. This can prevent the sticking and slipping effects in the driver's field of vision, especially in cars.

[0020] It is advantageous that the first pivot position and the at least one further pivot position are realized at least at a lower pivot position for the wiper blade. This can be advantageous with regard to the respective application in a passenger car, in order to additionally or alternatively prevent a sticking and slipping effect, for example, at the lower edge of the windshield. Furthermore, in the respective application, a pivot point for a wiper arm can also be located above the windshield.

[0021] It is advantageous that the first pivot position and the at least one further pivot position are realized at least at a pivot position for the wiper blade located in or near a driver's field of vision. With this preferred embodiment, a sticking and slipping effect in the field of vision, which the driver may find annoying, can be avoided.

[0022] It is advantageous that the first pivot position and the at least one further pivot position are realized at least at a pivot position for the wiper blade that is within or near the field of vision of a passenger. Thus, corresponding advantages for the driver can be realized additionally or alternatively for the passenger.

[0023] Depending on the design, one or more of the following features and advantages can be realized.

[0024] A wiping device can be implemented in which the wiper blade, during wiping operation when wiping upwards, for example, into the upper turning position, avoids a sticking and slipping effect, which represents a slipping of the wiper blade. This sticking and slipping effect can be caused by a water film that is drawn into the wiping area by the wiper blade, in particular the wiper rubber, and on which the wiper blade can suddenly slip due to the high friction difference. Since such sticking and slipping effects can be perceived as very annoying by the driver, for example, the driver's concentration and / or road safety can be positively influenced by avoiding the sticking and slipping effect.

[0025] This can prevent the wiper blade from suddenly slipping, at least in the remaining operating modes. This can, in particular, prevent undesirable visual and / or acoustic effects.

[0026] By means of an adaptive and / or parameterizable adjustment of, for example, the upper turning position of the wiper blade, the wiper blade can be turned in front of the water film in order to prevent or at least reduce slipping.

[0027] By cyclically reducing the upper turning position, for example, the wiper blade is preferably not guided, or at least not significantly pulled, into the water film. This prevents or at least reduces slipping or a sticking and slipping effect. After the maximum reduction is reached, the first turning position can be returned to upon subsequent actuation. Due to the at least one additional operating mode performed, the wiper blade can again be completely submerged in the water film and thus be guided stably, since a constant friction coefficient is ensured.

[0028] Furthermore, the cycle can be repeated, whereby the process can start again from the beginning. Short description of the drawings

[0029] Preferred embodiments of the invention are explained in more detail in the following description with reference to the accompanying drawings, in which corresponding elements are provided with identical reference numerals. They show: Fig. 1 a motor vehicle with a windscreen and a wiper device in an excerpted, schematic representation to explain an embodiment; Fig. 2 that in Fig. 1 shows a detail, designated II, with the windscreen and a wiper blade of the wiper device of the motor vehicle mounted on a wiper arm to explain the exemplary embodiment, wherein the formation of a water film in the previously wiped area is illustrated; Fig. 3 a detail of the windscreen and the wiper blade in a partial sectional view from the Fig. 1 Viewing direction marked III, illustrating the formation of the water film in the previously wiped area; Fig. 4A to 4E a detail of the windscreen and the wiper blade in a partial sectional view corresponding to the illustration in Fig. 2, wherein a first turning position and several further turning positions are shown corresponding to a possible wiping cycle; Fig. 5 a flow chart for determining the Fig. 4A to 4E according to a preferred embodiment, wherein shortening values ​​increasing in size are used during the wiping cycle. Embodiments of the invention

[0030] Fig. Figure 1 shows a motor vehicle 1 with a wiper device 2 in a partial, schematic representation to explain an exemplary embodiment. The motor vehicle 1 can be designed, in particular, as a passenger car or truck. The wiper device 2 is particularly suitable for such motor vehicles 1.

[0031] The motor vehicle 1 has a window 3. Wipers 4, 5 are also provided, which serve to wipe the window 3. The window 3 is preferably a windshield 3 of the motor vehicle 1. However, the wiping device 2 can also be used on another window 3', such as the rear window 3', in a possibly modified configuration, for example with only one wiper 4.

[0032] Furthermore, the wiping device 2 can have one or more wipers 4, 5. If the wiping device 2 has multiple wipers 4, 5, then the proposed and possibly suitably further developed configuration is not necessarily provided on all wipers 4, 5.

[0033] The wipers 4, 5 each have a wiper arm 6, 7, on which wiper blades 8, 9 are mounted. In this exemplary embodiment, the wiper blade 8 wipes towards an A-pillar 10 of the motor vehicle 1. The proposed and, if appropriate, suitably developed embodiment is shown by way of example in the Fig. 2 to 5 are further described using the wiper blade 8. The design and functionality of the wiper blade 9 on the wiper arm 7 are similar.

[0034] The wiper device 2 has drives 11, 12 for the wiper arms 6, 7. Furthermore, a controller 15 is provided, which is connected to the drives 11, 12 via control lines 16, 17. In a modified embodiment, only a single drive 11, 12 can be provided, which serves to drive both wiper arms 6, 7.

[0035] When the wiper arm 6 is actuated by means of the drive 11, the wiper blade 8 is guided in the actuation direction 20 towards the A-pillar 10 over the window 3, whereby an area 21 is wiped.

[0036] Fig. 2 shows that in Fig. 1 shows a detail, labeled II, with the windshield 3 and a wiper blade 8 of the wiper device 2 of the motor vehicle 1 mounted on a wiper arm 6 to illustrate the exemplary embodiment. This illustrates the possible formation of a water film 25 in the previously wiped area 21.

[0037] In this exemplary embodiment, the wiper blades 8, 9 are each guided into an upper turning position 26, 27. The proposed configuration is described in more detail with reference to the upper turning position 26 for the wiper blade 8. However, the proposed configuration can also be implemented at the lower turning positions 28, 29 of the wiper blades 8, 9.

[0038] Fig. 3 shows a detail of the windscreen 3 and the wiper blade 8 in a partial sectional view from the Fig. 1, in the direction of view designated III. This illustrates the formation of the water film 25 in the previously wiped area 21.

[0039] If the wiper blade 8, after its reversal of movement, which occurs near the A-pillar 10, is now guided against the actuation direction 20 for the upward movement, then due to adhesive forces between a wiper lip 30 of the wiper blade 8 and the water wiped towards the A-pillar 10 as well as the surface tension of water, the water can adhere to the wiper lip 30 and be drawn back with the wiping movement 31. After a certain movement of the wiper 4 against the actuation direction 20 for the upward movement, i.e. in the direction of the wiping movement 31, the water film 25 is torn off the wiper lip 30, as shown in Fig. 2 and Fig. 3. This creates the water film 25 in the previously wiped area 21, which initially remains on the pane 3.

[0040] This water film 25 could, upon subsequent actuation, lead to a sudden reduction in friction between the wiper lip 30 of the wiper blade 8 and the windscreen 3, so that a sticking and slipping effect could occur due to a sudden relaxation. This could be perceived by a driver as a sudden twitching of the wiper 4. This sticking and slipping effect can, however, be avoided, as will be explained below with reference to the Fig. 4A to 4E and 5 as further described.

[0041] Fig. 4A to 4E each show a detail of the windscreen 3 and the wiper blade 8 in a partial sectional view corresponding to the illustration in Fig. 2. Here, 4A and 4E show a first turning position P1 corresponding to a first actuation mode S1, S5. Fig. 4B to 4D show several further turning positions P2, P3, P4, each corresponding to a further actuation mode S2, S3, S4. This allows a possible wiping cycle to be run through. The actuation modes S1, S2, S3, S4, S5 are also shown in Fig. 5 described in more detail.

[0042] The actuation modes S1, S5 are the same as the first actuation mode S1, S5, whereby to illustrate a wiping cycle in Fig. 4E and in step S5 of the Fig. 5 also shows the actuation method S5 which follows the actuation method S4 according to the time sequence implemented here as an example in this embodiment.

[0043] The drive 11 or the control 15 of the drive 11 are designed such that the wiper blade 8 can be guided into a first turning position P1 in an actuation direction 20 when actuated in accordance with the first actuation mode S1, S5, that at least one further actuation mode S2, S3, S4 is provided, and that the wiper blade 8, 9 can be guided into at least one further turning position P2, P3, P4 when actuated in accordance with the at least one further actuation mode S2, S3, S4, which, viewed in the actuation direction 20, lies in front of the first turning position P1.

[0044] In principle, only a single further actuation mode S2 can be provided. However, as implemented in this exemplary embodiment, several further actuation modes S2, S3, S4 are preferably provided. A turning position P2, P3, P4 is predetermined for each of these further actuation modes. Thus, the turning positions P2, P3, P4 of the several further actuation modes S2, S3, S4 differ from one another when viewed in the actuation direction 20.

[0045] Depending on the number of actuations or the duration of the wiper operation, which is triggered, for example, by a command from a driver or by a rain sensor 40, only the first actuation mode S1 or the first actuation mode S1 and one or more of the further actuation modes S2, S3, S4 can take place one after the other.

[0046] It is also possible for only a portion of the several additional actuation modes S2, S3, S4 to be executed immediately after the first actuation mode S1. This may be caused by a small number of actuations or a correspondingly short duration of the wiping operation. A larger total number of additional actuation modes may also be provided than are used by the controller 15 for a complete wiping cycle in a specific operating mode.

[0047] The turning positions P2, P3 of the further actuation mode S2, S3 are arranged, as viewed in the actuation direction 20, behind a turning position P3, P4 of a further actuation mode S3, S4 that directly follows this further actuation mode S2, S3. Thus, the turning position P3 lies before the turning position P2 as viewed in the actuation direction 20. The turning position P4 lies before the turning position P3 as viewed in the actuation direction 20.

[0048] If, as in Fig. 4B, the turning position P2 is approached, then at least no significant adhesion or slipping effect occurs. The same applies to the Fig. 4C and Fig. 4D approached turning positions P3 and P4.

[0049] If, as in Fig. 4E, after a wiping cycle the position P1 is approached again, then the wiper blade 8 is completely in the water film 25 again during its wiping movement, in particular when passing over the previous turning positions (positions) P4, then P3 and then P4, and is therefore stable, since a constant coefficient of friction is ensured.

[0050] Fig. 5 shows a flow chart for determining the Fig. 4A to 4E for the steps or operating modes S1, S2, S3, S4, S5 according to a preferred embodiment. In this embodiment, increasing shortening values ​​x1, x2, x3 are used during the wiping cycle.

[0051] In this exemplary embodiment, the controller 15 calculates the turning values ​​a, b for turning positions P1, P2, P3, P4 from a first turning value a and the shortening values ​​x1, x2, x3. The shortening values ​​are given as positive values.

[0052] Here, the first turning position P1 is given at a first turning value a. In this exemplary embodiment, the wiper arm rotates, so that the turning value a can be considered a turning angle a, which can be determined, for example, in radians or degrees or converted into such a value.

[0053] In the further operating mode S2 which immediately follows the first operating mode S1, the control 15 determines the turning value b, i.e. in this case the turning angle b, as a difference value, whereby a first shortening value x1 is deducted from the first turning value a.

[0054] Accordingly, the control determines the turning value b for the subsequent operating mode S3 by subtracting a second shortening value x2 from the first turning value a.

[0055] In this embodiment, at the end of the wiping cycle, the controller determines the turning value b for the operating mode S3 following the operating mode S2 by subtracting a third shortening value x3 from the first turning value a.

[0056] Then, in this embodiment, a wiping cycle is completed, and in step S5, operating mode S5 follows, which corresponds to operating mode S1. Here, the position P1 determined by the first turning value a is again approached as the turning position P1.

[0057] Thus, in this exemplary embodiment, several further operating modes S2, S3, S4 are provided, the drive 11 being designed such that, in a further operating mode S3, S4 which directly follows a further operating mode S2, S3, the further turning value b, in particular further turning angles b, is given as a difference value which is determined from the first turning value a, in particular first turning angle a, as minuends and a further shortening value x2, x3 as subtrahends.

[0058] As shown by the arrows in Fig.5, the temporal sequence is specified in such a way that the shortening values ​​x1, x2, x3 of the several further operating modes S2, S3, S4 increase in accordance with the direct temporal succession of the further operating modes S2, S3, S4.

[0059] The shortening values ​​can be specified with respect to the respective application, in particular with respect to the geometric design of the wiping device, but possibly also with respect to other parameters, such as a wiping speed.

[0060] In this exemplary embodiment, the shortening values ​​x1, x2, x3 are predetermined such that the wiper blade 8, 9 turns at the further turning value b determined by the shortening values ​​x1, x2, x3 at least substantially before a water film 25 drawn back over the window 3 by the wiper blade 8 when turning at the previous first turning value a or previous further turning value b.

[0061] Furthermore, the first operating mode S1 and the further operating modes S2, S3, S4, or a portion of the further operating modes S2, S3, S4, form a wiping cycle. The wiping cycle can be repeated in the same or modified manner depending on the desired number of actuations or the desired duration of wiper operation.

[0062] Thus, the controller 15 can execute a method for actuating the wiper blades 8, 9 of the wiper device 2 of the motor vehicle 1 by means of the drives 11, 12. In this case, the wiper blades 8, 9 are guided over the windshield 3 upon actuation.

[0063] When actuated according to a first actuation method S1, S5, the respective wiper blade 8, 9 is guided in an actuation direction 20 into a first turning position P1. When actuated according to a further actuation method S2, S3, S4, the respective wiper blade 8, 9 is guided into a further turning position P2, P3, P4, which are each located before the first turning position P1, viewed in the actuation direction 20. This preferably results in an ever further forward displacement of the turning positions P2, P3, P4 over the course of a wiping cycle.

[0064] Thus, the controller 15 can be configured to execute the described method. Furthermore, a computer program can be configured to execute the described method.

[0065] The invention is not limited to the described embodiments. QUOTES CONTAINED IN THE DESCRIPTION

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

[0000] WO 2022 / 178353

[0002]

Claims

[1] Wiper device (2), in particular for a motor vehicle (1), with a wiper blade (8, 9) which, in the mounted state, can be guided over a window (3) when actuated, and a drive (11, 12) for actuating the wiper blade (8, 9), characterized by , that the drive (11, 12) is designed such that the wiper blade (8, 9) can be guided into a first turning position (P1) in an actuation direction (20) according to a first actuation mode (S1, S5), that at least one further actuation mode (S2, S3, S4) is provided, and ... according to the at least one further actuation mode (S2, S3, S4) can be guided into at least one further turning position (P2, P3, P4) which, viewed in the actuation direction (20), lies before the first turning position (P1). [2] Wiper device according to claim 1, characterized bythat several further actuation modes (S2, S3, S4) are provided and that the turning positions (P2, P3, P4) of the several further actuation modes (S2, S3, S4) differ from one another when viewed in the actuation direction (20). [3] Wiper device according to claim 2, characterized by that the drive (11, 12) is designed such that at least some of the several further actuation modes (S2, S3, S4) are carried out directly after the first actuation mode (S1) if a correspondingly frequent actuation of the wiper blade (8, 9) takes place. [4] Wiper device according to claim 2 or 3, characterized by that the turning position (P2, P3) of a further actuation mode (S2, S3) is located behind a turning position (P3, P4) of a further actuation mode (S3, S4) which directly follows this further actuation mode (S2, S3) in the actuation direction (20). [5] Wiper device according to one of claims 1 to 4, characterized bythat the first turning position (P1) is at a first turning value (a), in particular a first turning angle (a), and that the drive (11, 12) is designed in such a way that the turning value (b), in particular a turning angle (b), determined in a further operating mode (S2) immediately following the first operating mode (S1, S5) is given as a difference value which is determined from the first turning value (a), in particular a first turning angle (a), as the minuend and a first shortening value (x1) as the subtrahend. [6] Wiper device according to claim 5, characterized bythat several further operating modes (S2, S3, S4) are provided and that the drive (11, 12) is designed such that in a further operating mode (S3, S4) which directly follows a further operating mode (S2, S3), the further turning value (b), in particular further turning angles (b), is given as a difference value which is determined from the first turning value (a), in particular first turning angle (a), as minuends and a further shortening value (x2, x3) as subtrahends. [7] Wiper device according to claim 6, characterized by that the shortening values ​​(x1, x2, x3) of the several further operating modes (S2, S3, S4) increase according to the direct temporal succession of the further operating modes (S2, S3, S4). [8] Wiper device according to one of claims 5 to 7, characterized byin that the at least one shortening value (x1, x2, x3) is predetermined such that the wiper blade (8, 9) turns at the further turning value (b), in particular further turning angle (b), determined by the shortening value (x1, x2, x3), at least substantially before a water film (25) drawn back over the window (3) by the wiper blade (8, 9) when turning at the previous first turning value (a), in particular first turning angle (a), or previous further turning value (b), in particular further turning angle (b). [9] Wiper device according to one of claims 1 to 8, characterized by that the drive (11, 12) is designed such that the first operating mode (S1) and at least one further operating mode (S2, S3, S4) or a part of the further operating modes (S2, S3, S4) form a wiping cycle which is repeated in the same or in a modified manner if the wiper blade (8, 9) is actuated with corresponding frequency. [10] Wiper device according to one of claims 1 to 9, characterized by , a1) that the first turning position (P1) and the at least one further turning position (P2, P3, P4) are realized at least at an upper turning position (26, 27) for the wiper blade (6, 7) and / or a2) that the first turning position (P1) and the at least one further turning position (P2, P3, P4) are realized at least at a lower turning position (28, 29) for the wiper blade (8, 9) and / or b1) that the first turning position (P1) and the at least one further turning position (P2, P3, P4) are realized at least at a turning position (26) for the wiper blade (8, 9) located in or at a field of vision (36) of a driver and / or b2) that the first turning position (P1) and the at least one further turning position (P2, P3, P4) are realized at least at a turning position (26) for the wiper blade (8, 9) located in or at a field of vision (37) of a passenger. [11] Method for actuating a wiper blade (8, 9) of a wiper device (2), in particular a wiper device (2) of a motor vehicle (1), by means of a drive (11, 12), wherein the wiper blade (8, 9) in the mounted state can be guided over a window (3) upon actuation, characterized by that the wiper blade (8, 9) is guided into a first turning position (P1) in an actuation direction (20) when actuated in accordance with a first actuation method (S1, S5), and that the wiper blade (8, 9) is guided into at least one further turning position (P2, P3, P4) when actuated in accordance with at least one further actuation method (S2, S3, S4), which, viewed in the actuation direction (20), lies in front of the first turning position (P1). [12] Control (15), in particular for a motor vehicle (1), which is arranged to carry out the method according to claim 11. [13] Computer program which is arranged to carry out the method according to claim 11.

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