Automobile system with water inflow prevention type carbon tank

Abstract

The invention discloses an automobile system with a water inflow prevention type carbon tank. The automobile system comprises a fuel supply system, a suspension system, an engine and a whole automobile controller. The fuel supply system comprises a fuel tank, a carbon tank, a first pressure sensor, a first electromagnetic valve, a three-way valve group and a first controller; a first port of the three-way valve group is communicated with the carbon tank, a second port of the three-way valve group is communicated with the environment, the first port of the three-way valve group is communicated with the second port when the carbon tank exhausts air into the environment, and the first port of the three-way valve group is communicated with a third port when the carbon tank needs air inlet balance; the suspension system comprises an air suspension air storage tank, a multi-way valve group and a second controller; a first port of the multi-way valve group is communicated with an air suspension air storage tank, a second port of the multi-way valve group is communicated with a third port of the three-way valve group, and when the carbon tank needs air inlet balance, the first port of the multi-way valve group is communicated with the second port of the three-way valve group. The problem that water in the environment enters the carbon tank in the carbon tank desorption process is fundamentally solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to an automobile system with a carbon canister that prevents water ingress. Background Art

[0002] In order to meet the national standard for fuel evaporative emissions, a carbon canister will be installed on the fuel tank to adsorb the fuel vapor evaporated from the fuel tank. When the fuel vapor pressure in the carbon canister reaches a certain value, the fuel vapor adsorbed in the carbon canister will be discharged into the engine to burn with the fuel, thereby avoiding the fuel vapor being directly discharged into the air and polluting the air.

[0003] In the prior art, in the process of discharging the fuel vapor in the carbon canister into the engine, that is, in the process of desorption of the carbon canister, in order to balance the pressure in the carbon canister, the carbon canister needs to be connected to the atmosphere. This action is generally achieved through a solenoid valve, but the air inlet position of the solenoid valve of some vehicles is very low, which easily leads to the risk of external water entering the carbon canister or even the engine. To solve this problem, the air inlet of the solenoid valve can be arranged at a higher position to prevent water from the environment from entering the carbon canister, but the length of the related pipeline will be increased, thereby increasing the weight and cost; or a one-way valve can be set at the air inlet of the solenoid valve. When there is a risk of external water invading the carbon canister, the one-way valve can be used to prevent external water from entering the carbon canister. However, the one-way valve can prevent the required air from entering the carbon canister while rejecting external water, affecting the pressure balance in the carbon canister. Summary of the invention

[0004] To solve at least one aspect of the above problems, the present invention provides an automobile system with a water-proof carbon canister, comprising a fuel supply system, a suspension system, an engine and a vehicle controller; the fuel supply system comprises a fuel tank, a carbon canister, a first pressure sensor, a first solenoid valve, a three-way valve group and a first controller; the fuel tank is connected to the carbon canister; the first pressure sensor is installed on the carbon canister and is used to detect the fuel vapor pressure in the carbon canister; one port of the first solenoid valve is connected to the carbon canister, and the other port is connected to the engine; the first port of the three-way valve group is connected to the carbon canister, and the second port thereof is connected to the external environment; the first controller is electrically connected to the first solenoid valve and the three-way valve group, and is used to control the on-off state of the first solenoid valve and the three-way valve group, so that when the carbon canister is exhausted to the external environment, the first port of the three-way valve group is connected to the first port of the three-way valve group. The two ports are connected, and when the carbon canister needs air intake balance, the first port of the three-way valve group is connected to the third port; the suspension system includes an air suspension air tank, a multi-way valve group and a second controller; the first port of the multi-way valve group is connected to the air suspension air tank, and the second port of the multi-way valve group is connected to the third port of the three-way valve group; the second controller is electrically connected to the multi-way valve group, and is used to control the on-off state of the multi-way valve group, so that when the carbon canister needs air intake balance, the first port and the second port of the multi-way valve group are connected; the vehicle controller is electrically connected to the first pressure sensor, the switch at the fuel tank refueling port, the engine controller, the first controller and the second controller, and is used to control the operation of the first controller and the second controller according to the signals of the first pressure sensor, the switch at the fuel tank refueling port and the engine controller.

[0005] Through the above technical scheme, the two-way solenoid valve in the original fuel supply system that controls the connection and disconnection between the carbon canister and the external environment is replaced with a three-way valve group, one of the ports is connected to the carbon canister, one port is connected to the external environment, and the remaining port is creatively connected to a port of a multi-way valve group that controls the air intake or outlet of the air suspension tank in the suspension system. In order to balance the gas pressure in the carbon canister during the desorption process of the carbon canister, the dry air in the air suspension tank is introduced into the carbon canister, fundamentally solving the problem of water in the environment entering the carbon canister and the engine during the desorption process of the carbon canister.

[0006] Since the fuel vapor in the fuel tank continues to evaporate into the carbon canister when the vehicle is not used for a long time, when the carbon canister is full of fuel vapor, the engine will be forced to start. Preferably, the fuel supply system also includes a second solenoid valve and a second pressure sensor; the second pressure sensor is installed on the fuel tank, and is used to detect the fuel vapor pressure in the fuel tank; the second solenoid valve is arranged between the fuel tank and the carbon canister, one port of the second solenoid valve is connected to the fuel tank, and the other port is connected to the carbon canister, and the fuel tank is connected to the carbon canister through the second solenoid valve; the second pressure sensor is electrically connected to the vehicle controller, and the second solenoid valve is electrically connected to the first controller, and is used to control the on and off of the second solenoid valve through the first controller according to the signal of the second pressure sensor. Through the above technical solution, a second pressure sensor is arranged on the fuel tank to detect the fuel vapor pressure in the fuel tank, and a second solenoid valve is arranged between the fuel tank and the carbon canister. When the fuel vapor pressure in the fuel tank reaches a preset threshold, the fuel vapor in the fuel tank is introduced into the carbon canister, so that the fuel tank itself bears some fuel pressure, reducing the situation of forced starting of the engine under the condition that the vehicle is not used for a long time.

[0007] Preferably, when the vehicle controller receives a signal from the second pressure sensor that the fuel vapor pressure in the fuel tank reaches a first threshold, the first controller is controlled to open the second solenoid valve, and the first solenoid valve and the three-way valve group are both closed, and the second controller is controlled to prevent the first port and the second port of the multi-way valve group from being conducted. Through the above technical solution, the on-off states of the first solenoid valve, the second solenoid valve, the three-way valve group, and the multi-way valve group in the evaporation scenario are disclosed.

[0008] Preferably, when the vehicle controller receives a signal from the first pressure sensor that the fuel vapor pressure in the carbon canister reaches the second threshold value and receives an engine running signal from the engine controller, the first controller is controlled to open the first solenoid valve, and the second solenoid valve is closed, and the first port and the third port of the three-way valve group are connected, and the second controller is controlled to connect the first port and the second port of the multi-way valve group. Through the above technical solution, the on-off states of the first solenoid valve, the second solenoid valve, the three-way valve group, and the multi-way valve group in the carbon canister desorption scenario are disclosed.

[0009] Preferably, when the vehicle controller receives a signal from the first pressure sensor that the fuel vapor pressure in the carbon canister reaches the second threshold value and receives a signal from the engine controller that the engine is not running, the first controller is controlled to close the first solenoid valve, and the second solenoid valve is opened, and the first and second ports of the three-way valve group are connected, and the second controller is controlled to not connect the first and second ports of the multi-way valve group. Through the above technical solution, the on-off states of the first solenoid valve, the second solenoid valve, the three-way valve group, and the multi-way valve group in the evaporative emission scenario are disclosed.

[0010] Preferably, when the vehicle controller receives a fuel filler switch opening signal and a signal from the first pressure sensor that the fuel vapor pressure in the carbon canister reaches a second threshold value, the first controller is controlled to control the first solenoid valve to close, and the second solenoid valve to open, and the first and second ports of the three-way valve group are connected, and the second controller is controlled to control the first and second ports of the multi-way valve group to be disconnected. Through the above technical solution, the on-off states of the first solenoid valve, the second solenoid valve, the three-way valve group, and the multi-way valve group in the fueling emission scenario are disclosed.

[0011] Preferably, the three-way valve group is a FTIV three-way solenoid valve, the first port of the FTIV three-way solenoid valve is connected to the carbon canister, the second port thereof is connected to the external environment, and the third port thereof is connected to the second port of the multi-way valve group. Through the above technical solution, a specific structure of a three-way valve group is disclosed, and the FTIV three-way solenoid valve is used as the three-way valve group, so as to realize function integration, reduce the number of parts and shorten the length of the wiring harness.

[0012] Preferably, an exhaust check valve is connected to the second port of the FTIV type three-way solenoid valve. Through the above technical solution, the exhaust check valve is provided to ensure that during the discharge of the carbon canister into the environment, only gas is allowed to be discharged from the carbon canister into the environment, and water in the environment is prevented from entering, which helps to further improve the water-proof performance of the carbon canister.

[0013] Preferably, the three-way valve group includes a three-way valve, a third solenoid valve and a fourth solenoid valve; the first port of the three-way valve is connected to the carbon canister, the second port of the three-way valve is connected to a port of the third solenoid valve, and the other port of the third solenoid valve is connected to the external environment; the third port of the three-way valve is connected to a port of the fourth solenoid valve, and the other port of the fourth solenoid valve is connected to the second port of the multi-way valve group; the third solenoid valve and the fourth solenoid valve are both electrically connected to the first controller. Through the above technical solution, another specific structure of the three-way valve group is disclosed.

[0014] Preferably, another port of the third solenoid valve is connected to an exhaust one-way valve.

[0015] The automobile system with a water-intake-preventing carbon canister of the present invention has the following beneficial effects:

[0016] By making a simple improvement in the original automobile system, the two-way solenoid valve that controls the connection and disconnection between the carbon canister and the external environment in the original fuel supply system is replaced with a three-way valve group, one of the ports is connected to the carbon canister, one port is connected to the external environment, and the remaining port is creatively connected to a port of the multi-way valve group that controls the air inlet or outlet of the air suspension tank in the suspension system, which not only ensures that the carbon canister is connected to the external environment through the three-way valve group when the carbon canister discharges gas into the environment, but also enables the dry air in the air suspension tank to be introduced into the carbon canister during the carbon canister desorption process to balance the gas pressure in the carbon canister, fundamentally solving the problem of water in the environment entering the carbon canister and the engine during the carbon canister desorption process. By setting an exhaust check valve on the second port of the three-way valve group, it is ensured that during the carbon canister discharge into the environment, only gas is allowed to be discharged from the carbon canister to the environment, avoiding water in the environment from entering, which helps to further improve the carbon canister's anti-water ingress performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0018] Figure 1 A structural block diagram of an automobile system having a water ingress prevention carbon canister according to a first embodiment of the present invention is shown;

[0019] Figure 2 A structural block diagram of an automobile system having a water ingress prevention carbon canister according to a second embodiment of the present invention is shown;

[0020] Figure 3 A structural block diagram of an automobile system having a water ingress prevention carbon canister according to a third embodiment of the present invention is shown;

[0021] Figure 4 A control block diagram of an automobile system having a water ingress prevention carbon canister according to an embodiment of the present invention is shown.

[0022] Description of reference numerals:

[0023] 11. Fuel tank; 111. Fuel filler port; 112. Second pressure sensor; 12. Carbon canister; 121. First pressure sensor; 13. First solenoid valve; 14. Second solenoid valve; 15. First controller; 16. Three-way valve group; 161. Three-way solenoid valve; 162. Three-way valve; 163. Third solenoid valve; 164. Fourth solenoid valve; 17. Exhaust check valve; 2. Engine; 21. Intake manifold; 31. Multi-way valve group; 32. Air suspension tank; 33. Second controller; 4. Vehicle controller. DETAILED DESCRIPTION

[0024] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0025] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0026] In order to at least partially solve the above problems and one or more of other potential problems, the embodiment of the present disclosure proposes an automobile system with a water-proof carbon canister, including a fuel supply system, a suspension system, an engine 2 and a vehicle controller 4; the fuel supply system includes a fuel tank 11, a carbon canister 12, a first pressure sensor 121, a first solenoid valve 13, a three-way valve group 16 and a first controller 15; the fuel tank 11 is connected to the carbon canister 12; the first pressure sensor 121 is installed on the carbon canister 12, and is used to detect the fuel vapor pressure in the carbon canister 12; one port of the first solenoid valve 13 is connected to the carbon canister 12, and the other port is connected to the engine 2; the first port of the three-way valve group 16 is connected to the carbon canister 12, and its second port is connected to the external environment; the first controller 15 is electrically connected to the first solenoid valve 13 and the three-way valve group 16, and is used to control the on-off state of the first solenoid valve 13 and the three-way valve group 16, so that when the carbon canister 12 is exhausted to the external environment, the three-way valve group 16 The first port is connected to the second port, and when the carbon canister 12 needs intake balance, the first port of the three-way valve group 16 is connected to the third port; the suspension system includes an air suspension air tank 32, a multi-way valve group 31 and a second controller 33; the first port of the multi-way valve group 31 is connected to the air suspension air tank 32, and the second port of the multi-way valve group 31 is connected to the third port of the three-way valve group 16; the second controller 33 is electrically connected to the multi-way valve group 31, and is used to control the on-off state of the multi-way valve group 31, so that when the carbon canister 12 needs intake balance, the first port and the second port of the multi-way valve group 31 are connected; the vehicle controller 4 is electrically connected to the first pressure sensor 121, the switch at the refueling port 111 on the fuel tank 11, the controller of the engine 2, the first controller 15 and the second controller 33, and is used to control the operation of the first controller 15 and the second controller 33 according to the signals of the first pressure sensor 121, the switch at the refueling port 111 on the fuel tank 11 and the controller of the engine 2.

[0027] Specifically, Figures 1 to 4 As shown, the fuel tank 11 is connected to the carbon canister 12. Preferably, the fuel supply system also includes a second solenoid valve 14 and a second pressure sensor 112; the second pressure sensor 112 is installed on the fuel tank 11, and is used to detect the fuel vapor pressure in the fuel tank 11; the second solenoid valve 14 is arranged between the fuel tank 11 and the carbon canister 12, one port of the second solenoid valve 14 is connected to the fuel tank 11, and the other port is connected to the carbon canister 12, and the fuel tank 11 is connected to the carbon canister 12 through the second solenoid valve 14; the first pressure sensor 121 is installed on the carbon canister 12, and is used to detect the fuel vapor pressure in the carbon canister 12; one port of the first solenoid valve 13 is connected to the carbon canister 12, and the other port is connected to the engine 2; the first port of the three-way valve group 16 is connected to the carbon canister 12, and its second port is connected to the external environment.

[0028] The first port of the multi-way valve group 31 is connected to the air suspension air tank 32, and the second port of the multi-way valve group 31 is connected to the third port of the three-way valve group 16. Specifically, Figures 1 to 3 As shown, in some embodiments, the three-way valve group 16 is a FTIV type three-way solenoid valve 161, a first port of the FTIV type three-way solenoid valve 161 is connected to the carbon canister 12, a second port thereof is connected to the external environment, and a third port thereof is connected to the second port of the multi-way valve group 31; preferably, an exhaust check valve 17 is connected to the second port of the FTIV type three-way solenoid valve 161. In other embodiments, the three-way valve 162 group includes a three-way valve 162, a third solenoid valve 163 and a fourth solenoid valve 164; the first port of the three-way valve 162 is connected to the carbon canister 12, the second port of the three-way valve 162 is connected to one port of the third solenoid valve 163, and the other port of the third solenoid valve 163 is connected to the external environment; the third port of the three-way valve 162 is connected to one port of the fourth solenoid valve 164, and the other port of the fourth solenoid valve 164 is connected to the second port of the multi-way valve group 31; the third solenoid valve 163 and the fourth solenoid valve 164 are both electrically connected to the first controller 15; preferably, the other port of the third solenoid valve 163 is connected to an exhaust check valve 17.

[0029] The first controller 15 is electrically connected to the first solenoid valve 13, the second solenoid valve 14 and the three-way valve group 16, and is used to control the on-off state of the first solenoid valve 13, the second solenoid valve 14 and the three-way valve group 16, that is, when the three-way valve group 16 is a FTIV type three-way solenoid valve 161, the first controller 15 controls the on-off state of the first solenoid valve 13, the second solenoid valve 14 and the FTIV type three-way solenoid valve 161; when the three-way valve group 16 includes a three-way valve 162, a third solenoid valve 163 and a fourth solenoid valve 164, the first controller 15 controls the on-off state of the first solenoid valve 13, the second solenoid valve 14, the third solenoid valve 163 and the fourth solenoid valve 164, so that when the carbon canister 12 exhausts air to the external environment, the first port of the three-way valve group 16 is connected to the second port, and when the carbon canister 12 needs intake balance, the first port of the three-way valve group 16 is connected to the third port. The second controller 33 is electrically connected to the multi-way valve group 31, and is used to control the on-off state of the multi-way valve group 31, so that when the carbon canister 12 needs intake balance, the first port and the second port of the multi-way valve group 31 are connected. The vehicle controller 4 is electrically connected to the first pressure sensor 121, the second pressure sensor 112, the switch at the fuel filling port 111 on the fuel tank 11, the controller of the engine 2, the first controller 15 and the second controller 33, and is used to control the operation of the first controller 15 and the second controller 33 according to the signals of the first pressure sensor 121, the second pressure sensor 112, the switch at the fuel filling port 111 on the fuel tank 11 and the controller of the engine 2.

[0030] When the vehicle controller 4 only receives the signal from the second pressure sensor 112 that the fuel vapor pressure in the fuel tank 11 reaches the first threshold value, the second solenoid valve 14 is controlled to open by controlling the first controller 15, and the first solenoid valve 13 and the three-way valve group 16 are both closed, and the first port and the second port of the multi-way valve group 31 are controlled to be non-conductive by controlling the second controller 33, and the system of the present application is in an evaporation scene.

[0031] When the vehicle controller 4 receives a signal from the first pressure sensor 121 that the fuel vapor pressure in the carbon canister 12 reaches a second threshold value and receives a signal from the engine 2 controller that the engine 2 is not running, the first solenoid valve 13 is closed by controlling the first controller 15, and the second solenoid valve 14 is opened, and the first port and the second port of the three-way valve group 16 are connected, and the first port and the second port of the multi-way valve group 31 are controlled to be non-connected by controlling the second controller 33, and the system of the present application is in an evaporative emission scenario.

[0032] When the vehicle controller 4 receives a signal that the fuel port 111 switch is turned on and receives a signal from the first pressure sensor 121 that the fuel vapor pressure in the carbon canister 12 reaches a second threshold value, the first solenoid valve 13 is closed by controlling the first controller 15, and the second solenoid valve 14 is opened, and the first and second ports of the three-way valve group 16 are connected, and the first and second ports of the multi-way valve group 31 are controlled to be non-connected by controlling the second controller 33, and the system of the present application is in a refueling emission scenario.

[0033] When the vehicle controller 4 receives a signal from the first pressure sensor 121 that the fuel vapor pressure in the carbon canister 12 reaches a second threshold and receives an engine 2 operation signal from the engine 2 controller, the first solenoid valve 13 is opened by controlling the first controller 15, and the second solenoid valve 14 is closed, and the first port and the third port of the three-way valve group 16 are connected, and the first port and the second port of the multi-way valve group 31 are connected by controlling the second controller 33, and the system of the present application is in a carbon canister 12 desorption scenario.

[0034] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the present invention.

Claims

1. An automobile system having a water-proof carbon canister, characterized in that: It includes a fuel supply system, a suspension system, an engine (2) and a vehicle controller (4); The fuel supply system comprises a fuel tank (11), a carbon canister (12), a first pressure sensor (121), a first solenoid valve (13), a three-way valve group (16) and a first controller (15); the fuel tank (11) is connected to the carbon canister (12); the first pressure sensor (121) is installed on the carbon canister (12) and is used to detect the fuel vapor pressure in the carbon canister (12); one port of the first solenoid valve (13) is connected to the carbon canister (12), and the other port is connected to the engine (2); the three-way valve group (16) is connected to the carbon canister (12); 6) has a first port connected to the carbon canister (12), and a second port connected to the external environment; a first controller (15) is electrically connected to the first solenoid valve (13) and the three-way valve group (16), and is used to control the on-off state of the first solenoid valve (13) and the three-way valve group (16), so that when the carbon canister (12) exhausts air to the external environment, the first port of the three-way valve group (16) is connected to the second port, and when the carbon canister (12) needs to balance the intake of air, the first port of the three-way valve group (16) is connected to the third port; The suspension system comprises an air suspension air storage tank (32), a multi-way valve group (31) and a second controller (33); a first port of the multi-way valve group (31) is in communication with the air suspension air storage tank (32), and a second port of the multi-way valve group (31) is in communication with a third port of a three-way valve group (16); the second controller (33) is electrically connected to the multi-way valve group (31) and is used to control the on / off state of the multi-way valve group (31) so that when the carbon canister (12) needs to balance the intake air, the first port and the second port of the multi-way valve group (31) are in communication; The vehicle controller (4) is electrically connected to a first pressure sensor (121), a switch at a fuel filling port (111) on a fuel tank (11), a controller of an engine (2), a first controller (15) and a second controller (33), and is used to control the operation of the first controller (15) and the second controller (33) according to signals from the first pressure sensor (121), the switch at a fuel filling port (111) on a fuel tank (11) and the controller of the engine (2).

2. The automobile system with a water ingress prevention carbon canister according to claim 1, characterized in that: The fuel supply system further comprises a second solenoid valve (14) and a second pressure sensor (112); the second pressure sensor (112) is mounted on the fuel tank (11) and is used to detect the fuel vapor pressure in the fuel tank (11); the second solenoid valve (14) is arranged between the fuel tank (11) and the carbon canister (12); one port of the second solenoid valve (14) is connected to the fuel tank (11), and the other port is connected to the carbon canister (12); the fuel tank (11) is connected to the carbon canister (12) through the second solenoid valve (14); the second pressure sensor (112) is electrically connected to the vehicle controller (4), and the second solenoid valve (14) is electrically connected to the first controller (15), and is used to control the on and off of the second solenoid valve (14) through the first controller (15) according to the signal of the second pressure sensor (112).

3. The automobile system with a water ingress prevention carbon canister according to claim 2, characterized in that: When the vehicle controller (4) receives only a signal from the second pressure sensor (112) indicating that the fuel vapor pressure in the fuel tank (11) reaches a first threshold value, the first controller (15) is controlled to open the second solenoid valve (14), and the first solenoid valve (13) and the three-way valve group (16) are both closed, and the first port and the second port of the multi-way valve group (31) are controlled to be non-conductive by controlling the second controller (33).

4. The automobile system with a water ingress prevention carbon canister according to claim 2, characterized in that: When the vehicle controller (4) receives a signal from the first pressure sensor (121) indicating that the fuel vapor pressure in the carbon canister (12) has reached a second threshold value and receives an engine (2) operation signal from the engine (2) controller, the first controller (15) is controlled to open the first solenoid valve (13) and close the second solenoid valve (14), and the first and third ports of the three-way valve group (16) are connected, and the second controller (33) is controlled to connect the first and second ports of the multi-way valve group (31).

5. The automobile system with a water ingress prevention carbon canister according to claim 2, characterized in that: When the vehicle controller (4) receives a signal from the first pressure sensor (121) that the fuel vapor pressure in the carbon canister (12) reaches a second threshold value and receives a signal from the engine (2) controller that the engine (2) is not running, the first controller (15) is controlled to close the first solenoid valve (13), and the second solenoid valve (14) is opened, and the first port and the second port of the three-way valve group (16) are connected, and the second controller (33) is controlled to not connect the first port and the second port of the multi-way valve group (31).

6. The automobile system with a water ingress prevention carbon canister according to claim 2, characterized in that: When the vehicle controller (4) receives a signal indicating that the fuel inlet (111) switch is turned on and receives a signal indicating that the fuel vapor pressure in the carbon canister (12) reaches a second threshold value from the first pressure sensor (121), the first solenoid valve (13) is closed and the second solenoid valve (14) is opened by controlling the first controller (15), and the first and second ports of the three-way valve group (16) are connected, and the first and second ports of the multi-way valve group (31) are not connected by controlling the second controller (33).

7. The automobile system with a water ingress prevention carbon canister according to claim 1, characterized in that: The three-way valve group (16) is a FTIV three-way solenoid valve (161), the first port of the FTIV three-way solenoid valve (161) is connected to the carbon canister (12), the second port is connected to the external environment, and the third port is connected to the second port of the multi-way valve group (31).

8. The automobile system with a water ingress prevention carbon canister according to claim 7, characterized in that: The second port of the FTIV type three-way solenoid valve (161) is connected to an exhaust check valve (17).

9. The automobile system with a water ingress prevention carbon canister according to claim 1, characterized in that: The three-way valve (162) group includes a three-way valve (162), a third solenoid valve (163) and a fourth solenoid valve (164); the first port of the three-way valve (162) is connected to the carbon canister (12), the second port of the three-way valve (162) is connected to a port of the third solenoid valve (163), and the other port of the third solenoid valve (163) is connected to the external environment; the third port of the three-way valve (162) is connected to a port of the fourth solenoid valve (164), and the other port of the fourth solenoid valve (164) is connected to the second port of the multi-way valve group (31); the third solenoid valve (163) and the fourth solenoid valve (164) are both electrically connected to the first controller (15).

10. The automobile system with a water ingress prevention carbon canister according to claim 9, characterized in that: Another port of the third solenoid valve (163) is connected to an exhaust check valve (17).

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