Aquaplaning prevention system and related methods for vehicles

Abstract

Disclosed herein is an anti-aquaplaning system for a motor vehicle, the system comprising: - a storage unit (2; 102) for a working fluid, - a mixing unit (4; 104), - a supply unit (6; 106), - a distribution unit (8; 108) having at least a first and a second injector (10, 12; 110, 112) configured to inject the fluid onto the road surface in front of the right (RT) and left (LT) contact patches of the right (R) and left (L) wheels, respectively, of the front axle of the motor vehicle. The system operates with a working mixture defined by the working fluid stored in a main tank and at least one auxiliary tank.

Description

Technical Field

[0001] The present invention refers to an aquaplaning prevention system for automobiles. Specifically, the present invention has been developed in relation to an aquaplaning prevention system based on injecting a liquid in front of the ground contact surface.

Background Art

[0002] The applicant has already developed and proposed a vehicle aquaplaning prevention system based on injecting a liquid in front of the ground contact surface of the front wheels of an automobile. Here, the liquid to be injected is sucked from the tank of the front window washer liquid of the automobile. An example of such a system is described in Italian Patent Application No. 102014902296915.

[0003] One of the most common technical problems affecting such a system lies in the characteristics of the front window washer liquid. This liquid usually contains a solution of water and a surfactant-based cleaning agent for removing dirt from the front window or rear window. At the typical injection pressure of the front window cleaning system, a large amount of foam is not formed due to the presence of the surfactant in the liquid, but in the aquaplaning prevention system, the injection pressure can reach about 100 - 150 bar (10000 - 15000 kPa), so a considerable amount of foam is generated. This endangers the function of the liquid injection, has a great negative impact on the performance of this system, and eliminates the effect of this system in reducing the aquaplaning effect. Another constraint involves the tank of the front window washer liquid. This tank cannot be modified for the supply of the aquaplaning prevention system because there are differences in specifications depending on the automobile type and its equipment (presence or absence of the aquaplaning prevention system). Furthermore, it should be necessary to distinguish the liquid contained in the tank, and there are differences between the liquid for automobiles without an aquaplaning prevention system and the liquid for automobiles with an aquaplaning prevention system. [Object of the Invention]

[0004] The present invention aims to solve the technical problems mentioned in the preceding paragraph. Specifically, the present invention aims to optimize the simultaneous existence and operation of an aquaplaning prevention system and a front windshield cleaning device mounted on a vehicle by providing multiple functions. [Overview of the project]

[0005] The object of the present invention is realized by systems and methods having the features described in the subsequent claims, which are essential elements of the technical disclosure provided herein in connection with the present invention. [Brief explanation of the drawing]

[0006] The present invention will now be described with reference to the following appendix, which is provided merely as a non-limiting example.

[0007] [Figure 1] This is a schematic representation of the aquaplaning prevention system according to the first embodiment of the present invention.

[0008] [Figure 2] This is a schematic representation of an aquaplaning prevention system according to a second embodiment of the present invention.

[0009] [Figure 3] This figure shows another embodiment of the present invention. [Figure 4] This figure shows another embodiment of the present invention. [Modes for carrying out the invention]

[0010] Reference numeral 1 in Figure 1 generally refers to an aquaplaning prevention system for automobiles according to a first embodiment of the present invention.

[0011] In this embodiment and other embodiments, the system includes a storage unit 2 for the working fluid, a mixing unit 4, a supply unit 6, and a distribution unit 8, the distribution unit having at least first and second injectors 10, 12 configured to inject the fluid toward the road surface located in front of the right contact surface RT and the left contact surface LT of the right wheel R and left wheel L of the front axle of the vehicle.

[0012] Furthermore, it should be noted that the distribution unit 8 may generally be mounted on any axle of the vehicle (either the front axle, the rear axle, or both); therefore, it is also possible to mount it on the rear axle, and the first and second injectors 10, 12 are configured accordingly to spray liquid toward the road surface in front of the right and left contact surfaces of the right and left wheels of the rear axle and / or front axle of the vehicle, respectively.

[0013] According to the present invention, the storage unit 2 includes a main tank 14 configured to store the main working fluid, and at least one auxiliary tank 16, 18, (n), 20, where reference numeral (n) generally indicates the presence of a variable number of auxiliary tanks (in this embodiment, there are three auxiliary tanks in addition to the nth tank, but the number can generally vary from a minimum of 1 to a maximum number determined by operational needs). Each auxiliary tank is configured to store the corresponding auxiliary working fluid. The main working fluid may include a conventional windshield washer solution (water and cleaning agent) or simply water. In a preferred embodiment, the main tank 14 is selected as the tank for the automotive windshield washer fluid.

[0014] Auxiliary tanks 16, 18, (n), and 20 store auxiliary working fluids. These are functionally additives specific to the equipment connected to the distribution unit and are configured to be mixed with the main working fluid. Examples of auxiliary working fluids, whose purpose will become clear from the following description, include - defoaming agents, - water, and - soap / cleaning agents (not necessarily used for windshield cleaning, see below).

[0015] The mixing unit 4 includes a manifold 22 to which a main tank 14 and at least one auxiliary tank 16, 18, (n), 20 are individually hydraulically connected. Specifically, the following connections are connected to the manifold 22: - a hydraulic connection 24 for the main tank 14, - a hydraulic connection 26 for the auxiliary tank 16, - a hydraulic connection 28 for the auxiliary tank 18, - a hydraulic connection (nc) for the auxiliary tank (n), and - a hydraulic connection 30 for the auxiliary tank 20.

[0016] The mixing unit 4 further has an electric valve for each auxiliary tank, specifically: - an electric valve 32 attached to the hydraulic connection 26 of auxiliary tank 16, where valve 32 is driven by a drive signal S32; - an electric valve 34 attached to the hydraulic connection 28 of auxiliary tank 18, where valve 34 is driven by a drive signal S34; - an electric valve 36 attached to the hydraulic connection 30 of auxiliary tank 20, where valve 36 is driven by a drive signal S36; - an electric valve (nv) attached to the hydraulic connection (nc) of (generally) the nth auxiliary tank (n), where valve (nv) is driven by a drive signal (sn).

[0017] Each electric valve is configured to selectively enable the flow of auxiliary working fluid from its respective auxiliary tank to the manifold 22. Therefore, each valve may be operated to block the flow by taking the closed position and to enable the flow by taking the open position.

[0018] In this embodiment, the supply unit 6 includes a pump having an injection port 38 and a discharge port 40. In the schematic diagram of Figure 1, it can be seen that the manifold 22 and its associated tanks 14, 16, 18, 20, (n) are hydraulically connected to the injection port 38 of the pump. In the case of the auxiliary tanks, the hydraulic connection is effective when the valves 32, 34, 36, (nv) are in the open position, and the hydraulic connection of the main tank 14 is always effective.

[0019] Accordingly, each valve 32, 34, 36, (nv) is configured to selectively enable the flow of auxiliary working fluid in the hydraulic coupling between the corresponding auxiliary tank and manifold 22 in order to mix the main working fluid flowing from tank 14 with the corresponding (selected) auxiliary working fluid, thereby determining the working mixture of the system. It should be further noted that in certain embodiments, depending on the characteristics of the main working fluid and auxiliary working fluid, the working mixture may contain the main working fluid and two or more auxiliary working fluids. Accordingly, the supply unit 6 is configured to draw the working mixture from manifold 22 through injection port 38 and deliver it to distribution unit 8, specifically to injectors 10, 12.

[0020] Tank 14 is also connected to a conventional front windshield cleaning pump 42, which is smaller than the pump in supply unit 6 and is configured to draw the main working fluid directly from Tank 14 to clean the car windows.

[0021] The operation of System 1 is as follows:

[0022] The mixing unit makes it possible to determine an operating mixture with characteristics optimized for a specific application, which is delivered to the sprayers 10 and 12 of the aquaplaning prevention system. In a preferred embodiment with only one tank 14 and one auxiliary tank 16, the former is typically filled with a conventional windshield washer aqueous solution, from which the pump 42 can directly draw water, thus enabling the normal windshield cleaning function, while the latter is filled with a liquid defoamer.

[0023] When it becomes necessary to operate the anti-aquaplaning system 1, in this case, in order to obtain an operating mixture containing the front windshield washer solution stored in the tank 14 and the antifoaming agent stored in the tank 16, the valve 32 is opened so that mixing can be carried out in the manifold 22. Accordingly, the pump of the supply unit 6 sucks the operating mixture through the port 38 and directly delivers it to the injectors 10, 12 at a pressure of 60 to 100 bar (6000 to 10000 kPa). In the operation of this system, different from the related art, due to the presence of the antifoaming agent, the surfactant in the front windshield washer solution loses its efficacy, so the formation of bubbles is suppressed.

[0024] In another embodiment of the system 1, as a set of auxiliary tanks, a tank 18 filled only with water (which may contain an antifreeze agent) may also be assumed. In this case, the operating mixture may be composed of a combination of the front windshield washer solution sucked from the tank 14, the antifoaming agent sucked from the tank 16, and the water sucked from the tank 18 (the procedure is the same, the flow entering the connection part 28 through the valve 34 becomes effective, and mixing is carried out in the manifold 22). The water in the tank 18 may be used to dilute the front windshield washer solution in order to further reduce the bubbles generated from the injection through the injectors 10, 12.

[0025] In yet another embodiment, it is possible to assume the existence of another tank 20 containing a cleaning agent for removing dirt inside the injectors 10, 12. In this case, the operating mixture may contain a large amount of water from the tank 18 and the antifoaming agent from the tank 16 so as not to jeopardize the function of the cleaning agent for the injectors, but it is also possible to suck and deliver only the cleaning agent from the tank 20.

[0026] Referring to FIG. 2, reference numeral 100 denotes an aquaplaning prevention system according to a second embodiment of the present invention. System 100 is identical to system 1 with respect to the storage unit and the mixing unit, but the supply unit and the distribution unit are different. In any case, for the sake of easy comparison, the entire system will be described herein.

[0027] The aquaplaning prevention system 100 includes a storage unit 102 for the working fluid, a mixing unit 104, a supply unit 106, and a distribution unit 108. The distribution unit has a first injector and a second injector 110, 112 configured to inject the fluid toward the road surface in front of the right ground contact surface RT and the left ground contact surface LT of the right and left wheels R and L of the axle (front axle, rear axle, or both) of the automobile, respectively.

[0028] The storage unit 102 includes a main tank 114 configured to store the main working fluid, and at least one auxiliary tank 116, 118, (n), 120. Here, reference numeral (n) generally refers to the presence of the nth tank indicating a variable number of auxiliary tanks (in this embodiment, in addition to the nth tank, three auxiliary tanks are provided, but the number may generally vary from a minimum of 1 to a maximum defined by operational requirements). Each auxiliary tank is configured to store the corresponding auxiliary working fluid.

[0029] The main working fluid may include either a conventional front windshield washer solution (water and cleaning agent) or just water. Here too, the main tank 114 is preferably selected to be the tank for the front windshield washer fluid of the automobile.

[0030] Auxiliary tanks 116, 118, (n), 120 store auxiliary working fluids. These are functionally additives specific to the equipment connected to the distribution unit 108 and are configured to be mixed with the main working fluid. Examples of auxiliary working fluids, whose purpose will become clear from the following description, include: - defoaming solution, - in this embodiment, windshield washer fluid, - water, - in this embodiment, sensor cleaning fluid for removing dirt from sensors of various characteristics for advanced driver-assistance systems (ADAS), for example.

[0031] The mixing unit 104 includes a manifold 122 to which a main tank 114 and at least one auxiliary tank 116, 118, (n), 120 are individually hydraulically connected. Specifically, the following connections are connected to the manifold 122: - hydraulic connection 124 for the main tank 114, - hydraulic connection 126 for the auxiliary tank 116, - hydraulic connection 128 for the auxiliary tank 118, - hydraulic connection (nc) for the auxiliary tank (n), and - hydraulic connection 130 for the auxiliary tank 120.

[0032] The mixing unit 104 further has an electric valve for each auxiliary tank, specifically: - an electric valve 132 attached to the hydraulic connection 126 of auxiliary tank 116, where valve 132 is driven by a drive signal S132; - an electric valve 134 attached to the hydraulic connection 128 of auxiliary tank 118, where valve 134 is driven by a drive signal S134; - an electric valve 136 attached to the hydraulic connection 130 of auxiliary tank 120, where valve 136 is driven by a drive signal S136; - an electric valve (nv) attached to the hydraulic connection (nc) of (generally) the nth auxiliary tank (n), where valve (nv) is driven by a drive signal (sn).

[0033] Each electric valve is configured to selectively enable the flow of auxiliary working fluid from its respective auxiliary tank to the manifold 122. Therefore, each valve may be driven to take the closed position to block the flow and the open position to enable the flow.

[0034] In this embodiment, the supply unit 106 includes an injection port 138 and a pump having a plurality of discharge ports. Specifically, the pump of the supply unit 106 includes a first discharge port 140, a second discharge port 142, and a third discharge port 144.

[0035] The first discharge port 140 is hydraulically connected to a first accumulator 146 and a second accumulator 148, which are associated with injectors 110 and 112, respectively; accumulators 146 and 148 are configured to store the working mixture under pressure and are hydraulically connected to the corresponding injectors 110 and 112.

[0036] The second discharge port is hydraulically connected to a front windshield washer nozzle 150 assembly, and the third discharge port is hydraulically connected to a sensor cleaning nozzle 152 assembly configured, for example, to clean sensors for an advanced driver-assistance system (ADAS).

[0037] The sprayers 110 and 112, each equipped with accumulators 146 and 148, the front windshield washer nozzles 150, and the sensor cleaning nozzles 152 are all fixtures of the distribution unit 108.

[0038] In the schematic diagram of Figure 1, it can be seen that the manifold 122 and its associated tanks 114, 116, 118, 120, (n) are hydraulically connected to the pump's injection port 138. In the case of auxiliary tanks, the hydraulic connection is effective when valves 132, 134, 136, (nv) are in the open position, and the hydraulic connection of the main tank 114 is always effective.

[0039] Therefore, each valve 132, 134, 136, (nv) is configured to selectively enable the flow of auxiliary working fluid in the hydraulic connection between the corresponding auxiliary tank and manifold 122 in such a manner as to mix the main working fluid flowing from tank 114 with the corresponding (selected) auxiliary working fluid, thus defining the working mixture of the system. It should be further noted that in certain embodiments, depending on the characteristics of the main working fluid and auxiliary working fluid, the working mixture may include the main working fluid and two or more auxiliary working fluids. Unlike supply unit 6, the pump of supply unit 106 is configured to select a delivery port 140, 142, or 144 to draw the working mixture from manifold 122 through injection port 38 and deliver the drawn working mixture to distribution unit 108.

[0040] The basic operation of System 100 is the same as that of System 1; however, System 100 has other functions implemented, which are described below.

[0041] The mixing unit 104 makes it possible to specify a particular working mixture for each of the devices in the distribution unit 108.

[0042] The operating mixture for the injectors 110 and 112 may be determined by following the procedure described in the previous section, that is, by mixing the windshield washer fluid stored in tank 114 with the defoamer stored in tank 116. Unlike system 1, in system 100 the pump of the supply unit 106 can be small (i.e., it can handle a low flow rate). This is because the latter pump can achieve the same pressure conditions as system 1 by incorporating accumulators 146 and 148 (flow F140 through the delivery port 140). Another advantage is that the proximity of the accumulators to the injectors 110 and 112 provides the system to operate at a faster speed.

[0043] The operating mixture for the front windshield washer nozzle 150 assembly can be determined simply by drawing the front windshield washer fluid from tank 114 and discharging it through port 142 (flow F150), and the operating mixture for the sensor cleaning nozzle 152 assembly can be obtained by mixing the front windshield washer fluid stored in tank 114 with the sensor cleaning fluid stored in tank 118. The features of system 100 allow for filling tank 112 with just water (with the optional addition of an antifreeze), and assigning auxiliary operating fluids to tanks 116, 118, and 120, respectively, corresponding to the chemicals required by the various devices of the distribution unit 108, namely, defoamers (for the sprayers 110 and 112 of system 100), front windshield washer fluid (150 assembly), and sensor cleaning fluid (152 assembly). In this case, the defoamer can be replaced with a cleaning agent to keep the sprayers clean.

[0044] Therefore, those skilled in the art will understand that System 1, 100 makes it possible to combine standard onboard equipment for windshield cleaning with on-demand mixing equipment for adding additives or chemicals necessary to perform various different functions, without requiring modification of the standard containers (tanks 14, 114) for the windshield washer fluid. Since the mixing unit 4, 104 provides the working mixture on demand due to the necessity of the equipment, System 1, 100 becomes highly adaptable and effective. For operation of sprayers 10, 12 or 110, 112 alone, System 1, 100 offers further adaptability through the possibility of adding an antifoaming agent to completely eliminate foam generation during spraying, and further through the possibility of separately mixing water to dilute the windshield washer fluid used as the main working fluid. In the case of System 100, since the accumulators 146, 148 ensure that pressurized fluid immediately upstream of sprayers 110, 112 is always available, there is another possibility of improving the intervention dynamics of the system.

[0045] Finally, referring to Figures 3 and 4, in preferred embodiments of systems 1 and 100, the mixing units 4 and 104 include venturi-effect flow elements V16, V116, V18, V118, V20, and V120 (at least schematically similar to carburetor jets) hydraulically positioned upstream of electric valves 32, 132, 34, 134, 36, and 136 at each hydraulic connection between the auxiliary tanks 16, 116, 18, 118, 20, and 120. Compared to embodiments of systems 1 and 100 in Figures 1 and 2, the inclusion of venturi-effect flow elements allows for precise control of the amount of auxiliary fluid mixed with the main fluid by the mixing unit (for example, by selecting the inner diameter of the flow elements V16, V116, V18, V118, V20, and V120), similar to how air and fuel are mixed in a carburetor (albeit using only a partially similar process). Figure 3 illustrates an embodiment in which more than one auxiliary tank is assumed, while Figure 4 illustrates an embodiment preferred for a particular application, which has only one auxiliary tank 16, 116.

[0046] In one embodiment of system 100, the configuration in Figure 4 may assume a tank 116 storing front windshield washer fluid as an auxiliary fluid. This auxiliary fluid is mixed only with the main fluid (water) when it is not necessary to send flow F_IN to the injectors 110 and 112, that is, only when it is necessary to mix water and front windshield washer fluid to remove dirt from the front or rear windshield. Conversely, when it is necessary to send flow F_IN to the injectors 110 and 112, mixing the front windshield washer fluid with the water in the main tank 114 is prohibited.

[0047] Naturally, the details of the implementation and embodiments may differ, even in notability to any significant change, from those described and illustrated herein, without departing from the scope of the present invention as defined in the accompanying claims. (Other possible items) (Item 1) Storage unit for working fluid (2;102), Mixing unit (4;104), Supply unit (6;106), A distribution unit (8;108), wherein the distribution unit (8;108) has at least a first injector and a second injector (10, 12;110, 112) configured to spray liquid onto the road surface in front of the right contact surface (RT) and left contact surface (LT) of the right wheel (R) and left wheel (L) of the automobile axle, respectively. Equipped with, The storage unit (2;102) has a main tank (14;114) configured to store the main working fluid, and at least one auxiliary tank (16, 18, 20;116, 118, 120) configured to store the corresponding auxiliary working fluid, and each of the main tank (14;114) and the at least one auxiliary tank (16, 18, 20;116, 118, 120) includes a hydraulic connection part (22, 24, 26, 28, 30;122, 124, 126, 128, 130) to the supply unit (6;106), The mixing unit (104) is configured to mix a predetermined amount of the main working fluid with at least one of the predetermined amounts of the auxiliary working fluids, thereby determining the working mixture of the aquaplaning prevention system. This supply unit (6;106) is configured to deliver the working mixture to the first and second injectors (10, 12;110, 112). Aquaplaning prevention system for automobiles (1;100). (Item 2) The supply unit (6;106) has a pump including an injection port (38;138) and a discharge port (40;140), and the mixing unit (4;104) has a manifold (22;122) hydraulically connected to the injection port, to which the main tank (14;114) and the at least one auxiliary tank (16, 18, 20;116, 118, 120) are hydraulically connected individually. The aquaplaning prevention system (1;100) according to item 1, wherein the mixing unit (4;104) has electric valves (32, 34, 36;132, 134, 136) configured to selectively enable the flow of fluid in the hydraulic connection between the auxiliary tanks (16, 18, 20;116, 118, 120) and the manifold (22;122) in order to mix the main working fluid and the corresponding auxiliary working fluid, thereby determining the working fluid mixture of the aquaplaning prevention system, and the supply unit (6;106) is configured to draw the working fluid mixture from the manifold (22;122) through the injection port and deliver it to the distribution unit (8;108). (Item 3) The aquaplaning prevention system (1;100) according to item 1 or item 2, wherein the main tank (14;114) is a tank for the windshield washer fluid of the automobile. (Item 4) The aquaplaning prevention system (1) described in item 3, wherein the main tank is also hydraulically connected to another supply unit (42) configured to distribute front windshield washer fluid. (Item 5) The distribution unit (108) Front windshield washer nozzle (150) set, A set of sensor cleaning nozzles (152) specifically for removing dirt from sensors used in autonomous driving systems. Having at least one of the following, The aquaplaning prevention system (100) according to item 2, wherein the supply unit (106) has at least one other supply port (140, 142, 144) connected to a corresponding one of the front windshield washer nozzle (150) set and the sensor cleaning nozzle (152) set, and the supply unit (106) is configured to selectively enable the delivery of the operating mixture to predetermined supply ports (140, 142, 144). (Item 6) An aquaplaning prevention system (100) according to any one of items 1 to 5, comprising a first accumulator (146) associated with the first injector (110) and a second accumulator (148) associated with the second injector (112). (Item 7) The aquaplaning prevention system (100) described in item 4 further comprises, for each auxiliary tank (16, 18, 20; 116, 118, 120), a venturi effect flow element (V16, V18, V20; V116, V118, V120) hydraulically positioned upstream of an electric valve (32, 34, 36; 132, 134, 136). (Item 8) A method for supplying an operating mixture to a distribution unit (8;108) of an aquaplaning prevention system described in any one of items 1 to 7, The step of determining the instruments (10, 12, 110, 112, 150, 152) of the distribution unit (8, 108) that are supplied by the supply unit (6, 106), Steps to enable the flow of auxiliary working fluid from one or more selected auxiliary tanks (16, 18, 20; 116, 118, 120), The step of determining the working mixture of the aquaplaning prevention system by mixing the main working fluid with the auxiliary working fluid in one or more selected auxiliary tanks (16, 18, 20; 116, 118, 120), Steps include supplying the operating mixture to the determined instruments (10, 12; 110, 112, 150, 152) via the supply unit. A method for providing this. (Item 9) The method according to item 8, further comprising the step of selecting the pump outlet ports (140, 142, 144) of the supply unit (106) according to the determined equipment. (Item 10) A vehicle equipped with an aquaplaning prevention system as described in any one of items 1 through 7.

Claims

1. Storage unit for working fluid, Mixing unit, Supply unit, A distribution unit, wherein the distribution unit has at least a first injector and a second injector configured to spray liquid onto the road surface in front of the right contact surface (RT) and left contact surface (LT) of the right wheel (R) and left wheel (L) of the automobile axle, respectively. Equipped with, The storage unit comprises a main tank configured to store a main working fluid and at least one auxiliary tank configured to store a corresponding auxiliary working fluid, and each of the main tank and the at least one auxiliary tank includes a hydraulic connection to the supply unit. The mixing unit is configured to mix a predetermined amount of the main working fluid with a predetermined amount of at least one of the auxiliary working fluids, thereby determining the working mixture of the aquaplaning prevention system. This supply unit is configured to deliver the operating mixture to the first and second injectors. Aquaplaning prevention system for automobiles.

2. The supply unit has a pump including an injection port and a discharge port, and the mixing unit has a manifold hydraulically connected to the injection port, to which the main tank and the at least one auxiliary tank are hydraulically connected individually. The aquaplaning prevention system for an automobile according to claim 1, wherein the mixing unit has an electric valve configured to selectively enable the flow of fluid in the hydraulic connection between the auxiliary tank and the manifold in order to mix the main working fluid and the corresponding auxiliary working fluid, thereby determining the working fluid mixture of the aquaplaning prevention system, and the supply unit is configured to draw the working fluid mixture from the manifold through the injection port and deliver it to the distribution unit.

3. The aquaplaning prevention system for an automobile according to claim 1 or 2, wherein the main tank is a tank for the front windshield washer fluid of the automobile.

4. The aquaplaning prevention system for an automobile according to claim 3, wherein the main tank is also hydraulically connected to another supply unit configured to distribute front windshield washer fluid.

5. The aforementioned distribution unit Front windshield washer nozzle assembly, Sensor cleaning nozzle set Having at least one of the following, The aquaplaning prevention system for an automobile according to claim 2, wherein the supply unit has at least one other supply port connected to a corresponding one of the front windshield washer nozzle set and the sensor cleaning nozzle set, and the supply unit is configured to selectively enable the delivery of the operating mixture to a predetermined supply port.

6. An aquaplaning prevention system for an automobile according to any one of claims 1 to 5, comprising a first accumulator associated with the first injector and a second accumulator associated with the second injector.

7. The aquaplaning prevention system for an automobile according to claim 4, further comprising a venturi-effect flow element hydraulically positioned upstream of an electric valve for each auxiliary tank.

8. A method for supplying an operating mixture to a distribution unit of an aquaplaning prevention system for automobiles according to any one of claims 1 to 7, In the step of determining the equipment of the distribution unit to be supplied by the supply unit, A step of enabling the flow of auxiliary working fluid from one or more selected auxiliary tanks, The step of determining the operating mixture of the aquaplaning prevention system by mixing the main operating fluid with the auxiliary operating fluid in one or more selected auxiliary tanks, Steps include supplying the operating mixture to the determined instrument via the supply unit. A method for providing this.

9. The method of claim 8, further comprising the step of selecting a delivery port of the pump of the supply unit according to the determined instrument.

10. An automobile equipped with an aquaplaning prevention system for automobiles according to any one of claims 1 to 7.

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