Vehicle door drainage system, control method and vehicle

Abstract

The invention discloses a vehicle door drainage system, a control method and a vehicle. The vehicle door drainage system comprises a controller; the first water level sensor is connected with the controller, and the controller is used for collecting the wading state and wading information of the first water level sensor; the first drainage pipeline is used for being arranged in a vehicle door; the first water pump is arranged in the first drainage pipeline; when the fording depth collected by the first water level sensor reaches a set value, the controller controls the first water pump to work, and water in the vehicle door is drained out of the vehicle through the first drainage pipeline. The device can effectively dilute and weaken impact water pressure of wading on blanking cap sealing and vehicle door sealing, so that water pressure impact is smaller than sealing extrusion force, floating sealing performance is guaranteed, and long-time floating sealing and wading working conditions are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts manufacturing, and more specifically, to a door drainage system, a control method and a vehicle. Background Art

[0002] When the vehicle is in the maximum wading depth, the surface of the vehicle is submerged, and the normal operation of the vehicle and the sealing of the vehicle body are not leaking, which are the key performance indicators of the vehicle body floating water seal. At present, the existing technology usually adopts the method of plugging and door sealing to prevent water from entering the vehicle body. However, under the strict requirements of wading depth and floating time, the water pressure of the plugging and door sealing method will continuously impact the extrusion force of the door seal, resulting in the inability of the existing technology to perform floating water sealing and wading conditions for a long time. Summary of the invention

[0003] An object of the present invention is to provide a new technical solution for a door drainage system, a control method and a vehicle, which can at least solve the problems of the prior art that floating water sealing and wading conditions cannot be performed for a long time.

[0004] According to a first aspect of the present invention, a vehicle door drainage system is provided, comprising: a controller, the controller being arranged on a vehicle body; a first water level sensor, the first water level sensor being arranged in a vehicle door, the first water level sensor being connected to the controller, the controller being used to collect wading status and wading information of the first water level sensor; a first drainage pipe, the first drainage pipe being arranged in a vehicle door; a first water pump, the first water pump being arranged in the first drainage pipe; when the wading depth collected by the first water level sensor reaches a set value, the controller controls the first water pump to operate, and discharges the water in the vehicle door out of the vehicle through the first drainage pipe.

[0005] Optionally, the vehicle door includes a door outer panel and a door inner panel, the door outer panel and the door inner panel are connected and define a door panel cavity, the first water level sensor, the first drainage pipe and the first water pump are arranged in the door panel cavity, the first water level sensor, the first drainage pipe and the first water pump constitute a first drainage system, and the first drainage pipe extends along the height direction of the vehicle door.

[0006] Optionally, the first drainage pipe is respectively provided with a first water suction inlet and a first drainage outlet, and the first drainage outlet is provided with a first drainage one-way valve.

[0007] Optionally, the first water level sensor is located at the bottom of a door module inside the vehicle door.

[0008] Optionally, the height distance between the first water level sensor and the door module is 45-50 mm.

[0009] Optionally, the first water suction inlet is 10-20 mm away from the bottom of the first water level sensor, and the first water discharge outlet is 45-55 mm away from the bottom of the vehicle door.

[0010] Optionally, the door drainage system further includes:

[0011] a second water level sensor, the second water level sensor being arranged on the outer side of the threshold, and the second water level sensor being connected to the controller;

[0012] A second drainage pipe, the second drainage pipe is used to be arranged in the threshold, a second water suction inlet is arranged on the threshold, one end of the second drainage pipe is connected with the second water suction inlet, the other end of the second drainage pipe is a second drainage outlet, the second drainage outlet is connected with the first water pump in the first drainage pipe to discharge water into the first drainage pipe; the second water level sensor and the second drainage pipe constitute a second drainage system.

[0013] Optionally, the second water level sensor is arranged at the bottom of the sheet metal stop of the vehicle body door frame sealing strip.

[0014] Optionally, the second water level sensor is 13-17 mm away from the sheet metal stop of the vehicle body door frame sealing strip, and the second water suction inlet is 30-45 mm away from the sheet metal stop of the vehicle body door frame sealing strip.

[0015] Optionally, the door drainage system further includes:

[0016] A third water level sensor, the third water level sensor is used to be arranged on the bottom plate of the door sill body, and the third water level sensor is connected to the controller;

[0017] A third drainage pipe, the third drainage pipe is used to be arranged on the inner floor of the threshold body, the third drainage pipe has a third water suction inlet and a third drainage outlet, the third water suction inlet is connected to the water storage chamber in the inner floor of the threshold body, and the third drainage outlet is connected to the outside of the vehicle;

[0018] A second water pump, wherein the second water pump is arranged in the third drainage pipe, and the third water level sensor, the third drainage pipe and the second water pump constitute a third drainage system.

[0019] Optionally, the inner bottom plate of the door sill body is provided with a water inlet, and a one-way water filter net is provided at the water inlet.

[0020] Optionally, a second drainage one-way valve is provided at the third drainage outlet.

[0021] Optionally, the height distance between the third drain outlet and the sheet metal stop of the vehicle body door frame sealing strip is 120-140 mm.

[0022] A second aspect of the present invention provides a control method for a vehicle door drainage system, which is applied to the vehicle door drainage system described in the above embodiment, and the control method comprises:

[0023] When the controller detects that the vehicle is in the ON gear, it determines whether the vehicle is in a wading state;

[0024] When it is determined that the vehicle is in a wading state, collecting wading depth information of the first water level sensor;

[0025] When the wading depth information collected by the first water level sensor reaches the wading position in the door panel cavity of the vehicle door, the controller controls the first water pump to operate and perform drainage operation;

[0026] When the wading depth information collected by the first water level sensor is smaller than the wading position in the door panel cavity of the vehicle door, the controller controls the first water pump to stop working and exit the drainage mode.

[0027] Optionally, the control method of the vehicle door drainage system further includes:

[0028] When the wading depth information collected by the first water level sensor reaches the wading position in the door panel cavity of the vehicle door, the controller calculates the current required to drive the actuator according to the current required water displacement;

[0029] The controller determines whether the currently required current reaches a stall current threshold of the motor in the first water pump, and if the current is less than or equal to the stall current threshold, directly drives the actuator to perform a drainage action.

[0030] Optionally, the control method of the vehicle door drainage system further includes:

[0031] When the wading depth information collected by the second water level sensor is at the wading position that is above the threshold and enters the threshold sealing cavity, the controller controls the first water pump to operate and perform drainage operations through the second drainage pipe.

[0032] Optionally, the control method of the vehicle door drainage system further includes:

[0033] When the wading depth information collected by the third water level sensor indicates that the wading position of the vehicle body floor is not above the threshold, the controller controls the second water pump to operate and perform drainage through the third drainage pipe.

[0034] A third aspect of the present invention provides a vehicle, comprising the door drainage system described in the above embodiment.

[0035] The vehicle door drainage system of the present invention collects wading information through a first water level sensor. When the collected wading information reaches the wading position, the controller controls the first water pump to operate, and discharges the water in the vehicle door through the first drainage pipe in time, effectively diluting and weakening the impact water pressure of wading on the plug cover seal and the vehicle door seal, so that the water pressure impact is smaller than the sealing extrusion force, thereby ensuring floating water sealing and facilitating long-term floating water sealing and wading conditions.

[0036] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0038] Figure 1 is a cross-sectional view of a vehicle door drainage system according to an embodiment of the present invention;

[0039] Figure 2 is another cross-sectional view of a vehicle door drainage system according to an embodiment of the present invention;

[0040] Figure 3 is a cross-sectional view of a first drainage system of a vehicle door drainage system according to an embodiment of the present invention;

[0041] Figure 4 is a cross-sectional view of a second drainage system of a vehicle door drainage system according to an embodiment of the present invention;

[0042] Figure 5 is a cross-sectional view of a third drainage system of a vehicle door drainage system according to an embodiment of the present invention;

[0043] Figure 6 is a partial schematic diagram of a door frame strip of a vehicle door drainage system according to an embodiment of the present invention;

[0044] Figure 7 is a control block diagram of a door drainage system according to an embodiment of the present invention;

[0045] Figure 8 2 is a working step diagram of a vehicle door drainage system according to an embodiment of the present invention.

[0046] Reference numerals:

[0047] Door drainage system 100;

[0048] Controller 10;

[0049] Sensor 20; first water level sensor 21; second water level sensor 22; third water level sensor 23;

[0050] A first drainage pipe 31; a first water suction inlet 311; a second drainage pipe 32; a second water suction inlet 321; a third drainage pipe 33;

[0051] Variable frequency water pump 40; first water pump 41; second water pump 42;

[0052] The first drainage system 5151; the second drainage system 52; the third drainage system 53;

[0053] First drainage one-way valve 61; second drainage one-way valve 62; one-way water filter 63;

[0054] Door panel cavity 71; door module 72; door sill outer side 73; body door frame sealing strip sheet metal stop 74; sill body inner bottom plate 75; door inner panel 76; sill sheet metal 77; door frame strip 78. DETAILED DESCRIPTION

[0055] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0056] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0057] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0058] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0059] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0060] In the specification and claims of the present invention, if the term "first" or "second" is involved, it may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" involved should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The vehicle door drainage system 100 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0064] like Figures 1 to 3 As shown, the vehicle door drainage system 100 according to the embodiment of the present invention includes a controller 10 , a first water level sensor 21 , a first drainage pipe 31 and a first water pump 41 .

[0065] Specifically, the controller 10 is used to be arranged on the vehicle body. The first water level sensor 21 is used to be arranged in the vehicle door, and the first water level sensor 21 is connected to the controller 10, and the controller 10 is used to collect the wading state and the wading information of the first water level sensor 21. The first drainage pipe 31 is used to be arranged in the vehicle door. The first water pump 41 is arranged in the first drainage pipe 31; when the wading depth collected by the first water level sensor 21 reaches a set value, the controller 10 controls the first water pump 41 to work, and discharges the water in the vehicle door to the outside of the vehicle through the first drainage pipe.

[0066] In other words, see Figures 1 to 3The vehicle door drainage system 100 according to the embodiment of the present invention is mainly composed of a controller 10, a first water level sensor 21, a first drainage pipe 31 and a first water pump 41. The controller 10 can be installed on the vehicle body, located inside the vehicle, and interacts with the vehicle through a CAN line. The controller 10 is mainly used to analyze and process the signal request of the vehicle door drainage system 100, collect the current status of each water level sensor through a hard-wired connection, and provide power output for the vehicle door drainage system 100. During the output process, the output signal source of each water level sensor can be detected to realize the drainage and stop drainage functions.

[0067] The first water level sensor 21 can be installed in the vehicle door. The first water level sensor 21 is connected to the controller 10. The controller 10 is used to collect the wading state of the whole vehicle and the wading information of the first water level sensor 21. The first drainage pipe 31 is used to be installed in the vehicle door. When the vehicle body encounters wading conditions, water enters the door from the sheet metal stopper and process arrangement hole formed by the door inner panel 76 and the door outer panel. The first water pump 41 is installed in the first drainage pipe 31. When the wading depth collected by the first water level sensor 21 reaches the set value, the controller 10 controls the first water pump 41 to work, and discharges the water in the door through the first drainage pipe 31 to the outside of the vehicle, effectively diluting and weakening the impact water pressure of wading on the plug cover seal and the door seal, so that the water pressure impact is less than the sealing extrusion force, ensuring the floating water sealing, which is conducive to long-term floating water sealing and wading conditions. Therefore, when the water volume reaches the arranged position of the first water level sensor 21, the sensor signal is triggered, the first water pump 41 starts to work, and the wading water is discharged out of the door cavity.

[0068] Therefore, according to the vehicle door drainage system 100 of the embodiment of the present invention, water wading information is collected by the first water level sensor 21. When the collected water wading information reaches the water wading position, the controller 10 controls the first water pump 41 to work, and discharges the water in the vehicle door through the first drainage pipe 31 in time, so as to effectively dilute and weaken the impact water pressure of water wading on the plug cover seal and the vehicle door seal, so that the water pressure impact is less than the sealing extrusion force, thereby ensuring the floating water sealing performance, which is conducive to long-term floating water sealing and wading conditions.

[0069] According to one embodiment of the present invention, a vehicle door includes a door outer panel and a door inner panel 76, which are connected and define a door panel cavity 71, a first water level sensor 21, a first drainage pipe 31 and a first water pump 41 are arranged in the door panel cavity 71, the first water level sensor 21, the first drainage pipe 31 and the first water pump 41 constitute a first drainage system 51, and the first drainage pipe 31 extends along the height direction of the vehicle door.

[0070] That is to say, Figures 1 to 3As shown, the vehicle door is mainly composed of a vehicle door outer panel and a vehicle door inner panel 76, wherein the vehicle door outer panel and the vehicle door inner panel 76 are connected and define a door panel cavity 71. The first water level sensor 21, the first drainage pipe 31 and the first water pump 41 are installed in the door panel cavity, and the first water level sensor 21, the first drainage pipe 31 and the first water pump 41 constitute a first drainage system 51. The first drainage pipe 31 extends along the height direction of the vehicle door, and the extension of the first drainage pipe 31 in the vehicle door can be bent and extended, so as to facilitate timely discharge of water in the door panel cavity 71 to the outside of the vehicle, dilute and weaken the impact water pressure of wading on the plug cover seal and the door seal, and improve the floating water sealing performance.

[0071] According to one embodiment of the present invention, Figure 3 As shown, the first drainage pipe 31 is respectively provided with a first water suction inlet 311 and a first drainage outlet. A first drainage one-way valve 61 is provided on the first drainage outlet. The first drainage one-way valve 61 is designed to stop water and resist water impact pressure ≥4900pa without water leakage. The first water pump 41 is a variable frequency water pump 40, which can perform variable frequency power operation according to the sensor signal strength of the first water level sensor 21 to discharge water of different flow rates out of the vehicle.

[0072] In some specific embodiments of the present invention, the first water level sensor 21 is located at the bottom of the door module in the vehicle door. The height distance between the first water level sensor 21 and the door module 72 is 45-50 mm.

[0073] In other words, Figure 2 As shown, the first water level sensor 21 is arranged at the bottom of the door module 72 in the vehicle door, and a drainage mechanism space is provided below the door module 72 in the door panel cavity 71. The door module 72 is mainly used for lifting and lowering the window glass, and the height distance H1 between the first water level sensor 21 and the door module 72 is 45-50 mm, ensuring that the wading depth cannot exceed the bottom position of the door module 72.

[0074] In some specific embodiments of the present invention, the first water inlet 311 is disposed at the bottom of the first water level sensor 21. The first water inlet 311 is 10-20 mm away from the bottom of the first water level sensor 21, and the first drain port is 45-55 mm away from the bottom of the door.

[0075] That is to say, Figure 2 and Figure 3As shown, the first water inlet 311 can be installed at the bottom of the first water level sensor 21. The height distance H2 between the first water inlet 311 and the bottom of the first water level sensor 21 is about 10-20mm, and the height distance H3 between the first drain port and the bottom of the door is about 45-55mm. By arranging the water inlet pipe (first drain pipe 31) at a position 10mm to 20mm below the water level sensor H2, and arranging the one-way valve drain port (first drain one-way valve 61) at the door inner plate 76 at a position 45mm to 55mm from the bottom of the door inner plate H3, a drainage system combination is formed. The first drain one-way valve 61 is designed to stop water and resist water impact pressure ≥4900pa without water leakage. The variable frequency water pump 40 operates with variable frequency power according to the sensor signal strength of the water level sensor to drain water of different flow rates out of the vehicle.

[0076] According to one embodiment of the present invention, the vehicle door drainage system 100 further includes a second water level sensor 22 and a second drainage pipe 32. Specifically, the second water level sensor 22 is used to be arranged on the outer side 73 of the door sill, and the second water level sensor 22 is connected to the controller 10. The second drainage pipe 32 is used to be arranged in the door sill, and a second water suction inlet 321 is provided on the door sill. One end of the second drainage pipe 32 is connected to the second water suction inlet 321, and the other end of the second drainage pipe 32 is a second drainage port, which is connected to the first water pump 41 in the first drainage pipe 31 to discharge water into the first drainage pipe 31; the second water level sensor 22 and the second drainage pipe 32 constitute a second drainage system 52.

[0077] In other words, Figure 1 and Figure 4 As shown, the door drainage system 100 also includes a second water level sensor 22 and a second drainage pipe 32. The second water level sensor 22 is used to be arranged on the outer side 73 of the door sill, and the second water level sensor 22 is connected to the controller 10. The second drainage pipe 32 is used to be arranged in the door sill, and a second water suction inlet 321 is provided on the door sill. One end of the second drainage pipe 32 is connected to the second water suction inlet 321, and the other end of the second drainage pipe 32 is a second drainage port. The second drainage port is connected to the first water pump 41 in the first drainage pipe 31. The second drainage pipe 32 is arranged on the first water pump 41 to form an automatic drainage system, and the water is discharged into the first drainage pipe 31. The second water level sensor 22 and the second drainage pipe 32 constitute a second drainage system 52. The second water suction inlet 321 can be set as a siphon one-way water inlet to improve drainage efficiency. Siphon means pressure difference, and one-way drainage can be achieved by setting a pressure difference at the drainage port opening, and the pressure of water flowing outward is small, and the pressure of water flowing inward is large. Of course, for those skilled in the art, the specific principle of siphoning is understandable and achievable, and will not be described in detail in the present invention.

[0078] In some specific embodiments of the present invention, the second water level sensor 22 is disposed at the bottom of the body door frame sealing strip sheet metal stop 74. The height distance between the second water level sensor 22 and the body door frame sealing strip sheet metal stop 74 is 13-17 mm, and the height distance between the second water suction inlet 321 and the body door frame sealing strip sheet metal stop 74 is 30-45 mm.

[0079] In other words, Figure 2 As shown, the second water level sensor 22 is installed at the bottom of the body door frame sealing strip sheet metal stop 74. The height distance H4 between the second water level sensor 22 and the body door frame sealing strip sheet metal stop 74 is 13-17 mm, and the height distance H5 between the second water suction inlet 321 and the body door frame sealing strip sheet metal stop 74 is 30-45 mm, ensuring that high water pressure water can flow to the low water pressure place, and at the same time, by connecting the second drainage pipe 32 to the first water pump 41 in the first drainage pipe 31, an automatic drainage system is formed.

[0080] In the present invention, if Figure 6 As shown, the sealing section bubble shape of the door frame strip 78 and the sheet metal interference L1 are set to an interference amount of 4-6.5mm, and the bubble wall L2 is 1.8-2.2 thick, which is similar to the interference amount of traditional door frame strips and vehicle door strips. It reduces the rebound force acting on the door when opening and closing the door, which is conducive to maintaining good comfort in opening and closing the door.

[0081] According to an embodiment of the present invention, the vehicle door drainage system 100 further includes a third water level sensor 23 , a third drainage pipe 33 and a second water pump 42 .

[0082] Specifically, the third water level sensor 23 is used to be arranged on the threshold body inner floor 75, and the third water level sensor 23 is connected to the controller 10. The third drainage pipe 33 is used to be arranged on the threshold body inner floor 75, and the third drainage pipe 33 has a third water suction inlet and a third drainage outlet, the third water suction inlet is connected to the water storage chamber in the threshold body inner floor 75, and the third drainage outlet is connected to the outside of the vehicle. The second water pump 42 is arranged in the third drainage pipe 33, and the third water level sensor 23, the third drainage pipe 33 and the second water pump 42 constitute a third drainage system 53.

[0083] That is to say, Figure 1 and Figure 5As shown, the door drainage system 100 may further include a third water level sensor 23, a third drainage pipe 33, and a second water pump 42. The third water level sensor 23 is used to be installed on the threshold body inner bottom plate 75, and the third water level sensor 23 is connected to the controller 10. The controller 10 can collect the wading information of the third water level sensor 23. The third drainage pipe 33 is used to be arranged on the threshold body inner bottom plate 75, and the third drainage pipe 33 has a third water suction inlet and a third drainage outlet. The third water suction inlet is connected to the water storage chamber in the threshold body inner floor 75, and the third drainage outlet is connected to the outside of the vehicle. The second water pump 42 is installed in the third drainage pipe 33. The third water level sensor 23, the third drainage pipe 33, and the second water pump 42 constitute a third drainage system 53. When the controller 10 collects the wading information of the third water level sensor 23, the second water pump 42 is controlled to start working, and the water is discharged out of the vehicle through the third drainage pipe 33, so as to keep the ground in the vehicle dry and clean.

[0084] According to one embodiment of the present invention, Figure 5 As shown, the inner bottom plate 75 of the door sill body is provided with a water inlet, and a one-way water filter 63 is provided at the water inlet. The one-way water filter 63 can be an anti-odor backwash filter, and the one-way water filter 63 introduces water into the water storage chamber in the door sill reinforcement beam cavity through a connecting pipe, and a third water level sensor 23 is arranged in the cavity to identify the water level in the cavity. When wading triggers the third water level sensor 23, the second water pump 42 arranged in the sheet metal starts to work, and the water is discharged out of the vehicle through the third drainage pipe 33, so as to keep the ground in the vehicle dry and clean.

[0085] According to an embodiment of the present invention, a second drainage one-way valve 62 is provided at the third drainage port. The second drainage one-way valve 62 is designed to resist water impact pressure ≥ 4900 Pa to prevent water leakage.

[0086] According to one embodiment of the present invention, Figure 2 As shown, the height distance between the third drain outlet and the sheet metal stop 74 of the vehicle body door frame sealing strip is 120-140 mm, which is convenient for arranging the second drain one-way valve 62 and the second water pump 42 to achieve effective drainage.

[0087] In the present invention, by designing the first drainage system 51, the second drainage system 52 and the third drainage system 53, according to the water-wading information of the first water level sensor 21, the second water level sensor 22 and the third water level sensor 23 collected by the controller 10, the first water pump 41 and / or the second water pump 42 is controlled to start working, so as to achieve effective drainage, discharge the water in the vehicle body in time, effectively dilute and weaken the impact water pressure of water-wading on the plug cover seal and the door seal, make the water pressure impact less than the sealing extrusion force, ensure the floating water sealing, and facilitate long-term floating water sealing and water-wading conditions.

[0088] Of course, for those skilled in the art, other structures and working principles of the vehicle door drainage system 100 are understandable and achievable, and will not be described in detail in the present invention.

[0089] According to a second aspect of the present invention, Figure 7 and Figure 8 As shown, a control method of a vehicle door drainage system 100 is provided, which is applied to the vehicle door drainage system 100 in the above embodiment, and the control method includes:

[0090] When the controller 10 detects that the vehicle is in the ON gear, it determines whether the vehicle is in a wading state;

[0091] When it is determined that the vehicle is in a wading state, collecting wading depth information of the first water level sensor 21;

[0092] When the wading depth information collected by the first water level sensor 21 reaches the wading position in the door panel cavity 71 of the vehicle door, the controller 10 controls the first water pump 41 to operate and perform drainage operation;

[0093] When the wading depth information collected by the first water level sensor 21 is smaller than the wading position in the door panel cavity 71 of the vehicle door, the controller 10 controls the first water pump 41 to stop working and exit the drainage mode.

[0094] In other words, Figure 7 and Figure 8 As shown, in the control method of the vehicle door drainage system 100 of the present invention, the controller 10 monitors the signal changes of the vehicle door drainage system 100. When the controller 10 collects that the vehicle is in the ON gear, it determines whether the vehicle is in a wading state. When it is determined that the vehicle is in a wading state, the wading depth information of the first water level sensor 21 is collected. Then, when the wading depth information collected from the first water level sensor 21 reaches the wading position in the door panel cavity 71 of the vehicle door, the controller 10 controls the first water pump 41 to work and perform drainage operations. And when the wading depth information collected from the first water level sensor 21 is less than the wading position in the door panel cavity 71 of the vehicle door, the controller 10 controls the first water pump 41 to stop working and exit the drainage mode.

[0095] The controller 10 can be installed on the vehicle body, located inside the vehicle, and interact with the vehicle through the CAN line. The controller 10 is mainly used to analyze and process the signal request of the door drainage system 100, collect the current status of each sensor 20 (including the first water level sensor 21, the second water level sensor 22 and the third water level sensor 2323) through hard wire connection, and provide power output for the door drainage system 100. During the output process, the output signal source of each water level sensor can be detected to realize the drainage and stop drainage functions.

[0096] The present invention collects wading information through the first water level sensor 21. When the collected wading information reaches the wading position, the controller 10 controls the first water pump 41 to work, and discharges the water in the vehicle door through the first drainage pipe 31 in time, effectively diluting and weakening the impact water pressure of wading on the plug cover seal and the vehicle door seal, so that the water pressure impact is less than the sealing extrusion force, thereby ensuring the floating water sealing, which is conducive to long-term floating water sealing and wading conditions.

[0097] According to one embodiment of the present invention, the control method of the door drainage system 100 further includes:

[0098] When the wading depth information collected by the first water level sensor 21 reaches the wading position in the door panel cavity 71 of the vehicle door, the controller 10 calculates the current required to drive the actuator according to the current required water displacement;

[0099] The controller 10 determines whether the current required reaches the stall current threshold of the motor in the first water pump 41 . If the current required reaches the stall current threshold, the controller 10 directly drives the actuator to perform the drainage operation.

[0100] That is to say, when the wading depth information collected by the first water level sensor 21 reaches the wading position in the door panel cavity of the vehicle door, the controller 10 can calculate the current ZA required to drive the actuator based on the current required drainage volume. Then, the controller 10 determines whether the current required current ZA reaches the maximum stall current of the motor in the first water pump 41. If it is less than or equal to the maximum stall current, the actuator is directly driven to perform the maximum drainage action.

[0101] According to one embodiment of the present invention, the control method of the door drainage system 100 further includes:

[0102] When the wading depth information collected by the second water level sensor 22 is at the wading position that is below the threshold and enters the threshold sealing cavity, the controller 10 controls the first water pump 41 to operate and perform drainage operation through the second drainage pipe 32 .

[0103] That is to say, in the control method of the vehicle door drainage system 100, when the wading depth information collected by the second water level sensor 22 is above the door sill and enters the wading position of the door sill sealing cavity, the controller 10 controls the first water pump 41 to work, and performs drainage operations through the second drainage pipe 32 to discharge the water on the outside of the door sill in time, effectively dilute and weaken the impact water pressure of wading on the plug cover seal and the door seal, so that the water pressure impact is less than the sealing extrusion force, thereby ensuring the floating water sealing, which is conducive to long-term floating water sealing and wading conditions.

[0104] According to one embodiment of the present invention, the control method of the door drainage system 100 further includes:

[0105] When the wading depth information collected by the third water level sensor 23 indicates that the wading position is not above the threshold and enters the vehicle body floor, the controller 10 controls the second water pump 42 to operate and perform drainage through the third drainage pipe 33 .

[0106] That is to say, in the control method of the door drainage system 100, when the wading depth information collected by the third water level sensor 23 is not over the threshold and enters the wading position of the vehicle body floor, the controller 10 controls the second water pump 42 to operate, and performs drainage operations through the third drainage pipe 33 to discharge the water in the vehicle body floor in time, thereby ensuring the floating water sealing, which is conducive to long-term floating water sealing and wading conditions.

[0107] The present invention designs a logic control method to solve the progressive hierarchical work of the drainage system of each module. Through multiple water level sensors (the first water level sensor 21, the second water level sensor 22 and the third water level sensor 23), the water level information of the vehicle during wading condition is collected and a trigger signal is given to the controller 10, and the controller 10 sends an execution signal. The wading enters the door panel cavity 71 and triggers the signal of the first water level sensor 21, and a certain flow of water is discharged from the pipe to the outside of the vehicle. The wading position passes the door strip position and enters the second water level sensor 22 in the cavity between the outer side of the threshold and triggers a signal, and the water wading in the cavity between the door and the body sealing strip is discharged from the pipe to the outside of the vehicle. The wading position is submerged in the threshold position and enters the body, and water leaks from the floor filter into the water storage cavity. When the water in the water cavity reaches the position of the third water level sensor 23, a trigger signal is issued to discharge the water in the cavity to the outside of the vehicle.

[0108] like Figure 8 As shown, the actual processing flow of the control method of the vehicle door drainage system 100 of the present invention is as follows:

[0109] S01: The controller 10 monitors the signal changes in the door drainage system 100.

[0110] S02: If the controller 10 detects that the vehicle is in the ON gear, it determines whether it is currently in a wading state. If it is in the wading state, it further collects the current water level sensor signal information.

[0111] S03: When A controller 10 detects that the vehicle is currently in a wading state, it collects the current wading depth information. The wading depth is divided into X1 wading position in the door panel cavity, X2 water level does not exceed the threshold and enters the position in the threshold sealing cavity, X3 water does not exceed the threshold and enters the cockpit body floor, and water enters the vehicle. There is a certain water pressure outside the vehicle.

[0112] S04: A controller 10 calculates the current ZA required to drive the actuator according to the currently required water discharge.

[0113] S05: A controller 10 determines whether the current ZA currently required has reached the maximum stall current of the motor. If it is less than or equal to the maximum stall current, the actuator is directly driven to perform the maximum water discharge action.

[0114] S06: A controller 10 drives the water pump motor to operate, and the drainage system performs drainage operations according to the signal sent by the actuator.

[0115] S07: A controller 10 detects the sensor signal and issues an automatic drainage instruction to perform drainage operations according to different wading depths.

[0116] S08: A controller 10 stops driving the current action, maintains the current position of the motor, and performs a braking action.

[0117] S09: A controller 10 collects the current wading state and the power state of the whole vehicle. If the current wading depth of the vehicle is less than X1 or the vehicle exits the ON gear, the vehicle exits the drainage mode.

[0118] S10: The controller 10 drives the pull-in actuator to perform a reset action, and the electrolysis function is restored after the reset is completed.

[0119] In summary, the control method of the vehicle door drainage system 100 of the present invention, when the water wading information is collected and the water wading position is reached, the controller 10 controls the corresponding water pump to work, so as to discharge the water in the vehicle door in time, effectively dilute and weaken the impact water pressure of the water wading on the plug cover seal and the vehicle door seal, so that the water pressure impact is less than the sealing extrusion force, thereby ensuring the floating water sealing, which is conducive to long-term floating water sealing and wading conditions.

[0120] According to the third aspect of the present invention, a vehicle is provided, comprising the door drainage system 100 in the above embodiment. Since the door drainage system 100 according to the embodiment of the present invention has the above technical effects, the vehicle according to the embodiment of the present invention should also have corresponding technical effects, that is, the vehicle of the present invention adopts the door drainage system 100, which can effectively dilute and weaken the impact water pressure of wading on the plug cover seal and the door seal, so that the water pressure impact is less than the sealing extrusion force, ensuring the floating water sealing performance, which is conducive to long-term floating water sealing and wading conditions.

[0121] Of course, for those skilled in the art, other structures of the vehicle and their working principles are understandable and achievable, and will not be described in detail in the present invention.

[0122] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A door drainage system, characterized in that: include: A controller, the controller being arranged on the vehicle body; a first water level sensor, the first water level sensor being arranged in a vehicle door, the first water level sensor being connected to the controller, the controller being used to collect wading status and wading information of the first water level sensor; a first drainage pipe, wherein the first drainage pipe is used to be arranged in a vehicle door; The first water pump is arranged in the first drainage pipe; when the wading depth collected by the first water level sensor reaches a set value, the controller controls the first water pump to operate and discharge the water in the vehicle door out of the vehicle through the first drainage pipe.

2. The door drainage system according to claim 1, characterized in that: The vehicle door includes a door outer panel and a door inner panel, the door outer panel and the door inner panel are connected and define a door panel cavity, the first water level sensor, the first drainage pipe and the first water pump are arranged in the door panel cavity, the first water level sensor, the first drainage pipe and the first water pump constitute a first drainage system, and the first drainage pipe extends along the height direction of the vehicle door.

3. The vehicle door drainage system according to claim 1, characterized in that: The first drainage pipe is respectively provided with a first water suction inlet and a first drainage outlet, and the first drainage outlet is provided with a first drainage one-way valve.

4. The vehicle door drainage system according to claim 1, characterized in that: The first water level sensor is located at the bottom of a door module in the vehicle door.

5. The vehicle door drainage system according to claim 4, characterized in that: The height distance between the first water level sensor and the door module is 45-50 mm.

6. The vehicle door drainage system according to claim 3, characterized in that: The first water suction inlet is arranged at the bottom of the first water level sensor.

7. The vehicle door drainage system according to claim 6, characterized in that: The height of the first water suction inlet from the bottom of the first water level sensor is 10-20 mm, and the height of the first water discharge outlet from the bottom of the vehicle door is 45-55 mm.

8. The vehicle door drainage system according to claim 1, characterized in that: Also includes: a second water level sensor, the second water level sensor being arranged on the outer side of the threshold, and the second water level sensor being connected to the controller; A second drainage pipe, the second drainage pipe is used to be arranged in the threshold, a second water suction inlet is arranged on the threshold, one end of the second drainage pipe is connected with the second water suction inlet, the other end of the second drainage pipe is a second drainage port, the second drainage port is connected with the first water pump to discharge water into the first drainage pipe; the second water level sensor and the second drainage pipe constitute a second drainage system.

9. The vehicle door drainage system according to claim 8, characterized in that: The second water level sensor is arranged at the bottom of the sheet metal stop of the sealing strip of the vehicle body door frame.

10. The vehicle door drainage system according to claim 9, characterized in that: The height of the second water level sensor from the sheet metal stop of the vehicle body door frame sealing strip is 13-17 mm, and the height of the second water suction inlet from the sheet metal stop of the vehicle body door frame sealing strip is 30-45 mm.

11. The vehicle door drainage system according to claim 1, characterized in that: Also includes: A third water level sensor, the third water level sensor is used to be arranged on the bottom plate of the door sill body, and the third water level sensor is connected to the controller; A third drainage pipe, the third drainage pipe is used to be arranged on the inner floor of the threshold body, the third drainage pipe has a third water suction inlet and a third drainage outlet, the third water suction inlet is connected to the water storage chamber in the inner floor of the threshold body, and the third drainage outlet is connected to the outside of the vehicle; A second water pump, wherein the second water pump is arranged in the third drainage pipe, and the third water level sensor, the third drainage pipe and the second water pump constitute a third drainage system.

12. The vehicle door drainage system according to claim 11, characterized in that: The bottom plate inside the door sill body is provided with a water inlet, and a one-way water filter net is provided at the water inlet.

13. The vehicle door drainage system according to claim 11, characterized in that: A second drainage one-way valve is provided at the third drainage outlet.

14. The vehicle door drainage system according to claim 11, characterized in that: The height distance between the third drain outlet and the sheet metal stop of the vehicle body door frame sealing strip is 120-140 mm.

15. A control method for a vehicle door drainage system, applied to the vehicle door drainage system according to any one of claims 1 to 14, characterized in that: The control method comprises: When the controller detects that the vehicle is in the ON gear, it determines whether the vehicle is in a wading state; When it is determined that the vehicle is in a wading state, collecting wading depth information of the first water level sensor; When the wading depth information collected by the first water level sensor reaches the wading position in the door panel cavity of the vehicle door, the controller controls the first water pump to operate and perform drainage operation; When the wading depth information collected by the first water level sensor is smaller than the wading position in the door panel cavity of the vehicle door, the controller controls the first water pump to stop working and exit the drainage mode.

16. The control method of the vehicle door drainage system according to claim 15, characterized in that: Also includes: When the wading depth information collected by the first water level sensor reaches the wading position in the door panel cavity of the vehicle door, the controller calculates the current required to drive the actuator according to the current required water displacement; The controller determines whether the currently required current reaches a stall current threshold of the motor in the first water pump, and if the current is less than or equal to the stall current threshold, directly drives the actuator to perform a drainage action.

17. The control method of the vehicle door drainage system according to claim 15, characterized in that: Also includes: When the wading depth information collected by the second water level sensor is at the wading position that is above the threshold and enters the threshold sealing cavity, the controller controls the first water pump to operate and perform drainage operations through the second drainage pipe.

18. The control method of the vehicle door drainage system according to claim 15, characterized in that: Also includes: When the wading depth information collected by the third water level sensor indicates that the wading position of the vehicle body floor is not above the threshold, the controller controls the second water pump to operate and perform drainage through the third drainage pipe.

19. A vehicle, characterized in that: The vehicle door drainage system comprises the vehicle door drainage system according to any one of claims 1 to 14.

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