KR-20260065846-A - Single or limited use hydroplaning prevention system

KR20260065846AKR 20260065846 AKR20260065846 AKR 20260065846AKR-20260065846-A

Abstract

A method for handling intervention events of a vehicle anti-hydroplaning system (1; 100) is disclosed herein, wherein the system comprises at least first and second injectors (2, 4) configured to inject liquid toward the ground (G) in a forward position into the right tread (RT) and left tread (LT) of the right wheel (R) and left wheel (L) of the vehicle axle, respectively, and the method comprises the following: A step of obtaining a signal indicating the need for intervention by a hydroplaning prevention system (1; 100); A step of identifying multiple risk factors (V, Tr, Tc, O, LC, OA, OV, DR, R, TW) related to the possibility of a collision resulting from loss of vehicle control during a hydroplaning event; A step of acquiring signals representing each risk factor from an in-vehicle data network; A step of defining a collision risk indicator (CR) based on a combination of the above signals representing each risk factor, and determining the value of the risk indicator (CR); A step of determining the necessity of intervention by a hydroplaning prevention system and controlling intervention when the value of the above risk indicator (CR) is higher than the threshold.

Inventors

카세리니, 스테파노
피에르알리니, 마우로
블란디나, 지오반니

Assignees

이지 레인 아이.에스.피.에이.

Dates

Publication Date: 20260511
Application Date: 20240830
Priority Date: 20230904

Claims (10)

As a water-prevention system for automobiles, At least a first injector and a second injector configured to inject fluid into the ground at a forward position of the left tread of the left wheel and the right tread of the right wheel, respectively, of the axle of the vehicle; At least one accumulator configured to be fluidly connected to the first and second injectors and configured for storing high-pressure fluid; At least one flow control element - said at least one flow control element comprises: a first operating condition configured to enable fluid flow in fluid communication between said first injector and second injector and said at least one accumulator upon intervention of said water film prevention system including fluid injection using said first injector and second injector, and a second operating condition configured to block fluid flow in fluid communication between said at least one accumulator and said first injector and second injector when intervention of said water film prevention system is not required -; and It includes a control unit configured to enable the second operating condition and the first operating condition of the at least one flow rate control element based on the necessity of intervention of the above-mentioned water film prevention system, and The at least one accumulator comprises a recharge port configured to restore liquid within the accumulator. Water film prevention system.
In paragraph 1, The recharge port comprises a hydraulic connection port arranged in a branch-wise manner with respect to the fluid communication between the at least one accumulator, the first injector, and the second injector. Water film prevention system.
In paragraph 1, The above recharge port comprises a hydraulic connection port—through which fluid communication between the first injector and the second injector and the at least one accumulator is formed (developed)— Water film prevention system.
In paragraph 1, The recharge port comprises a valve, wherein the valve comprises an operating condition configured to enable the flow of fluid flowing out of the accumulator, and a recharge operating condition configured to enable the flow of fluid into the accumulator and to block the flow of fluid flowing out of the accumulator. Water film prevention system.
In paragraph 4, The above valve is, A casing extending along the valve shaft - the casing includes a valve seat at one end -; A plug movable along the valve axis within the casing—the plug maintains contact with the valve seat by means of an elastic element arranged between the shoulder of the plug and the shoulder of the casing, and the contact between the plug and the valve seat is separated by a pressure action on the influence surface of the plug on the valve seat—; and A maneuvering element of the plug configured to separate contact between the plug and the valve seat regardless of whether there is a pressure action on the influence surface of the plug on the valve seat; Includes, and The above recharge port is arranged on the valve seat, Water film prevention system.
In paragraph 5, The operating element of the above plug includes a pin having an axis that intersects or is orthogonal to the valve shaft, and The above operating element has a first operating position defining a first protrusion inside the casing and a second operating position defining a second protrusion larger than the first protrusion inside the casing, and In the second operating position, the tip end of the operating element contacts the surface of the plug that is tapered toward the valve seat, thereby separating the contact between the valve seat and the plug by the second protrusion, and In the first operating position, the first protrusion is insufficient to determine the separation of the contact between the valve seat and the plug, Water film prevention system.
In claim 6, at the first operating position, the tip end is separated from the surface of the plug tapered toward the valve seat, Water film prevention system.
In paragraph 6, The above plug is, A tang comprising the above-mentioned influence surface and configured to contact the valve seat; and A land adjacent to the above-mentioned tang - the land comprises a surface tapered toward the valve seat and further comprises a guide surface configured to guide the plug in movement along the valve axis -; Includes, and The above elastic element is included between one end of the casing facing the valve seat and the land, and The land is grooved by through grooves that identify passageways for liquid between the casing and the land, or between the casing and the guide surface. Water film prevention system.
In paragraph 1, The above recharge port includes a quick-release coupling, Water film prevention system.
A vehicle comprising a water-prevention system according to any one of paragraphs 1 through 9, The above recharge port is separated from any fluid circuit of the vehicle, vehicle.

Description

Single or limited use hydroplaning prevention system The present invention relates to anti-aquaplaning systems for automobiles. Specifically, the present invention was developed with reference to an anti-aquaplaning system based on injecting a liquid into the front position of the tread. The applicant has already developed and proposed a vehicle anti-aquaplaning system based on injecting a liquid into the front position of the tread of the vehicle's front wheels, and the injected liquid is drawn from the vehicle's windshield washer fluid tank. An example of such a system is described in Italian industrial invention patent application No. 102014902296915. Subsequently, the applicant developed a method for determining interface conditions between a tire and the ground, specifically a method for determining the occurrence of aquaplaning events, which is described in patent applications No. 102021000017588 and No. 102022000021216. All research conducted by the applicant, as well as general research in the field, is based on the assumption of the availability of liquid-injecting hydrofilm prevention systems that draw liquid from tanks with substantially infinite availability in relation to the frequency of intervention events. In other words, the deductive logic leading to the determination of the need for intervention events—including both those developed by the applicant and those that can be implemented in third-party known systems—never considered the possibility of limited usage patterns for liquid availability for hydrofilm prevention systems. It should be noted that limited use is not a requirement in itself. On the contrary, limited use stems from the objective of reducing, as much as possible, the functional dependence of the hydroplaning system on in-vehicle equipment, such as, for example, the windshield washer fluid container (which typically also serves as the tank from which the system draws liquid for injection). Furthermore, limited use makes it possible to avoid installing a pump for the hydroplaning system's liquid inside the vehicle. By reducing or completely eliminating dependency, the anti-water film system can be implemented as a completely independent unit (a kind of "plug-and-play" unit), while simultaneously reducing complexity, cost (due to the absence of a pump), volume, and potential difficulties during integration into manufactured vehicles (e.g., the need for a separate windshield washer fluid container is eliminated). However, as previously mentioned, the disclosed solutions operate without considering potential limited usage and therefore control the intervention of the accumulation system based solely on decisions regarding the vehicle's driving conditions. This inevitably leads to an excessive number of intervention events compared to the actual safety requirements of the vehicle in motion. The present invention aims to solve the technical problems described above. Specifically, the present invention aims to provide a single-use or limited-use hydroplaning prevention system having a simple structure, mounted on a vehicle for easy integration, and easily replaceable. The object of the present invention is achieved by a water film prevention system having the features described in the following claims, which form an essential part of the technical disclosure provided in this specification in relation to the invention. The present invention will now be described with reference only to the accompanying drawings provided as non-limiting examples, in which: - FIG. 1 is a schematic diagram of a water film prevention system according to a first embodiment of the present invention, and - FIGS. 2 and 3 illustrate the operational configurations of the system components of FIG. 1, FIG. 4 corresponds to a cross-sectional view along line IV-IV of FIG. 3, and, - FIG. 5 is a schematic diagram of a water film prevention system according to a second embodiment of the present invention. Reference numeral 1 in FIG. 1 generally represents an anti-water film system for an automobile according to a first embodiment of the present invention. The system (1) includes at least first and second injectors (2, 4) configured to inject liquid toward the ground (G) in a forward position into the left tread (LT) of the left wheel (L) of the vehicle axle and the right tread (RT) of the right wheel (R), respectively. The system (1) also includes at least one fluid accumulator (6) configured to store pressurized liquid (preferably water) and fluidly communicating with the first injector (2) and the second injector (4). Referring to a preferred embodiment of FIG. 1, the system (1) comprises a single accumulator (6) in fluid communication with both injectors (2, 4). Fluid communication is implemented by a three-way connection (8) comprising two outlets (10, 12) toward the injectors (2, 4) and an inlet (14) from the accumulator (6). Of course, an embodiment having one accumulator for each injector (2, 4) is also possi