Power assembly and vehicle

Abstract

The utility model discloses a power assembly and a vehicle. The power assembly comprises a transmission module, and the transmission module comprises a transmission and a first breather pipe which are connected with each other; the engine module comprises an oil tank, a carbon tank, a second breather pipe and an engine, one ends of the oil tank and the carbon tank are connected with the engine in series, and the second breather pipe is connected with the other end of the carbon tank; and the stop valve is internally provided with a first cavity and a second cavity which are separated from each other, the first ventilation pipe is communicated with one end of the first cavity, the second ventilation pipe is communicated with one end of the second cavity, and the other end of the first cavity and the other end of the second cavity are both communicated with the outside. The first chamber and the second chamber which are mutually separated are arranged in the stop valve, the first breather pipe and the second breather pipe can share one stop valve, dust, sand and the like can be prevented from entering the stop valve by utilizing the filtering function of the stop valve when the transmission is decompressed, and potential safety hazards caused by emulsification and deterioration of lubricating oil are effectively avoided; new parts do not need to be added, so that the economic benefit is better.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a power assembly and a vehicle. Background Art

[0002] The automobile transmission is one of the important components of a car. The first vent pipe of the transmission is used to connect the inside of the transmission with the atmosphere to keep the internal and external pressures consistent so that the lubricating oil in the transmission can flow out smoothly.

[0003] In the related art, some transmissions are not provided with a filtering device, while others add a filtering device at the joint of the first ventilation pipe of the transmission.

[0004] However, if the filter device is not added, the dust prevention effect of the transmission will be poor, especially in the desert off-road conditions of off-road SUVs, which can easily cause sand to enter the transmission from the first ventilation pipe during desert off-roading, which can easily cause problems such as emulsification and deterioration of the lubricating oil in the transmission, and then cause transmission failure, posing a safety hazard to vehicle use. Adding a filter device requires changing the structure and layout of the first ventilation pipe, which is costly. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a power assembly, in which the first vent pipe and the second vent pipe can share a cut-off valve, which can prevent dust and sand from entering the transmission, avoid safety hazards, and achieve better economic benefits.

[0006] The powertrain according to the first aspect of the present invention comprises: a transmission module, the transmission module comprises a transmission and a first ventilation pipe connected to each other; an engine module, the engine module comprises: a fuel tank, a carbon canister, a second ventilation pipe and an engine, the fuel tank, one end of the carbon canister and the engine are connected in series, and the second ventilation pipe is connected to the other end of the carbon canister; a stop valve, a first chamber and a second chamber separated from each other are arranged in the stop valve, the first ventilation pipe is connected to one end of the first chamber, the second ventilation pipe is connected to one end of the second chamber, and the other end of the first chamber and the other end of the second chamber are both connected to the outside.

[0007] According to the powertrain of the embodiment of the utility model, by arranging the first chamber and the second chamber separated from each other in the stop valve, the first ventilation pipe can share a stop valve with the second ventilation pipe, and the filtering function of the stop valve can be used to prevent dust, sand and the like from entering when the transmission is depressurized, thereby effectively avoiding the safety hazards caused by emulsification and deterioration of the lubricating oil in the transmission, and there is no need to add new parts, nor to change the structure and layout of the engine module and the transmission module, thereby achieving better economic benefits.

[0008] According to some embodiments of the utility model, the stop valve includes: a shell, a partition, a first pipe opening and a second pipe opening, the partition is arranged in the shell and divides the shell into the first chamber and the second chamber, the first pipe opening is connected to the first chamber and the first ventilation pipe, and the second pipe opening is connected to the second chamber and the second ventilation pipe.

[0009] According to some embodiments of the utility model, the stop valve further includes: a first control valve, the first control valve is connected between the second chamber and the second pipe opening, and the first control valve is selectively opened to allow external air to selectively enter the carbon canister.

[0010] According to some embodiments of the present utility model, the engine module further includes: a second control valve, the second control valve is arranged between one end of the carbon canister and the engine, and the first control valve and the second control valve selectively conduct the fuel ventilation path.

[0011] According to some embodiments of the utility model, the power assembly further includes: a controller, the controller is electrically connected to the first control valve and the second control valve, and the controller is used to control the first control valve and the second control valve to open when the engine is working.

[0012] According to some embodiments of the present utility model, the transmission module further includes: a third control valve, wherein the third control valve is disposed between the shut-off valve and the first ventilation pipe, and the third control valve selectively conducts the first ventilation pipe.

[0013] According to some embodiments of the present utility model, the power assembly further includes: a pressure sensor, which is disposed in the first ventilation pipe and is used to obtain the pressure in the first ventilation pipe.

[0014] According to some embodiments of the present utility model, the controller is electrically connected to the third control valve and the pressure sensor, and the controller is used to control the third control valve to open when the pressure in the first ventilation pipe is greater than a preset value.

[0015] According to some embodiments of the present invention, filters are disposed in both the first chamber and the second chamber.

[0016] A vehicle according to an embodiment of the second aspect of the utility model includes the power assembly.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a power assembly according to an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a stop valve according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 100. Powertrain;

[0023] 10. Transmission module; 11. Transmission; 12. First vent pipe; 13. Third control valve;

[0024] 20. Engine module; 21. Fuel tank; 22. Carbon canister; 23. Second ventilation pipe; 24. Engine; 25. Second control valve; 26. Adsorption tube; 27. Desorption tube;

[0025] 30. Stop valve; 31. First chamber; 32. Second chamber; 33. Shell; 34. Partition; 35. First pipe port; 36. Second pipe port; 37. First control valve;

[0026] 40. Controller;

[0027] 50. Pressure sensor. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0029] Reference below Figure 1-Figure 2 A powertrain 100 according to an embodiment of the present invention is described, and the present invention also provides a vehicle.

[0030] Reference Figure 1-2 As shown, the power assembly 100 of the embodiment of the present utility model includes: a transmission module 10 , an engine module 20 and a shut-off valve 30 .

[0031] The transmission module 10 includes a transmission 11 and a first vent pipe 12 that are connected to each other. The main function of the transmission 11 is to adjust the output power of the engine 24 by changing the transmission ratio. There is lubricating oil inside the transmission 11, which is used to reduce the friction and wear of the gears, bearings and other components of the transmission 11, and can also help the transmission 11 dissipate heat. The lubricating oil needs to be checked and replaced regularly to prevent the lubricating oil from deteriorating and emulsifying, which may cause poor lubrication of the transmission 11 or block the oil circuit, and the thermal conductivity of the lubricating oil decreases after emulsification and deterioration, which may easily cause overheating and damage to the transmission 11.

[0032] The transmission 11 may be a manual transmission, an automatic transmission, a dual clutch transmission, etc. In this embodiment, it is an automatic transmission.

[0033] The first ventilation pipe 12 is connected to the transmission 11, and the first ventilation pipe 12 is connected to the external environment. When the internal pressure of the transmission 11 is relatively high, the pressure can be released through the first ventilation pipe 12. During the operation of the transmission 11, the internal pressure will change due to temperature changes and the movement of internal parts. If there is no first ventilation pipe 12, the pressure inside the transmission 11 may increase, causing the seals and oil seals to be damaged or fail under pressure, and then causing the lubricating oil to leak. By using the first ventilation pipe 12 to be connected to the outside world for pressure relief, the transmission 11 can be prevented from being damaged and its service life can be extended.

[0034] The engine module 20 includes: a fuel tank 21, a carbon canister 22, a second ventilation pipe 23 and an engine 24. The fuel tank 21, one end of the carbon canister 22 and the engine 24 are connected in series, and the second ventilation pipe 23 is connected to the other end of the carbon canister 22. The fuel required by the engine 24 is placed in the fuel tank 21, and the main function of the carbon canister 22 is to capture and store the fuel vapor escaping from the fuel tank 21 to prevent it from being directly discharged into the atmosphere and reduce environmental pollution.

[0035] After the carbon canister 22 absorbs the fuel vapor, when the engine 24 needs fuel, the fuel vapor absorbed by the carbon canister 22 can be brought into the engine 24 by the external clean air provided by the second ventilation pipe 23 to participate in combustion.

[0036] The fuel vapor in the fuel tank 21 enters the carbon canister 22 through the adsorption tube 26 , and the fuel vapor in the carbon canister 22 enters the engine 24 through the desorption tube 27 .

[0037] The shut-off valve 30 is provided with a first chamber 31 and a second chamber 32 separated from each other. The first vent pipe 12 is connected to one end of the first chamber 31, the second vent pipe 23 is connected to one end of the second chamber 32, and the other end of the first chamber 31 and the other end of the second chamber 32 are both connected to the outside. Specifically, the first chamber 31 and the second chamber 32 in the shut-off valve 30 are both connected to the outside, and the first chamber 31 and the second chamber 32 can filter the outside air. The first vent pipe 12 is connected to the first chamber 31, and the first vent pipe 12 is also connected to the transmission 11, so that when the internal pressure of the transmission 11 is relatively high, it can be connected to the outside through the first vent valve and the first chamber 31, thereby avoiding failure of the transmission 11.

[0038] The second ventilation pipe 23 is connected to the second chamber 32. The outside air is filtered by the second chamber 32 and reaches the carbon canister 22 through the second ventilation pipe 23, and brings the fuel vapor adsorbed in the carbon canister 22 into the engine 24 for combustion.

[0039] In the prior art, the second vent pipe 23 is already provided with a stop valve 30, which has a filtering function. Now the inside of the stop valve 30 is divided into two chambers, and the first vent pipe 12 and the second vent pipe 23 can share a stop valve 30. When the transmission 11 is depressurized, the filtering function of the stop valve 30 can be used to prevent dust and sand from entering, effectively avoiding the safety hazards caused by the emulsification and deterioration of the lubricating oil in the transmission 11. In addition, the modification of such a setting is relatively small, and there is no need to add new parts, nor to change the structure and layout of the engine module 20 and the transmission module 10, which has better economic benefits.

[0040] Therefore, by setting a first chamber 31 and a second chamber 32 that are separated from each other in the stop valve 30, the first ventilation pipe 12 can use a stop valve 30 together with the second ventilation pipe 23. When the transmission 11 is depressurized, the filtering function of the stop valve 30 can be used to prevent dust, sand, etc. from entering the transmission 11, thereby effectively avoiding the safety hazards caused by emulsification and deterioration of the lubricating oil in the transmission 11. There is no need to add new parts, nor is there any need to change the structure and layout of the engine module 20 and the transmission module 10, which has better economic benefits.

[0041] Reference Figure 2As shown, the stop valve 30 includes: a housing 33, a partition 34, a first pipe opening 35 and a second pipe opening 36. The partition 34 is arranged in the housing 33 and divides the housing 33 into a first chamber 31 and a second chamber 32. The first pipe opening 35 is connected to the first chamber 31 and the first ventilation pipe 12, and the second pipe opening 36 is connected to the second chamber 32 and the second ventilation pipe 23. In other words, the transmission 11 is connected to the outside world through the first ventilation pipe 12, the first pipe opening 35 and the first chamber 31 in sequence, so that the pressure inside the transmission 11 is consistent with the outside world. The outside air enters the stop valve 30, passes through the second pipe opening 36 and the second ventilation pipe 23 after being filtered in the second chamber 32, and enters the carbon canister 22, and brings the fuel vapor into the engine 24 through the desorption pipe 27.

[0042] Reference Figure 2 As shown, the stop valve 30 further includes: a first control valve 37, the first control valve 37 is connected between the second chamber 32 and the second pipe opening 36, and the first control valve 37 is selectively opened to allow external air to selectively enter the carbon canister 22. Specifically, the first control valve 37 can be a carbon canister desorption valve, the first control valve 37 is connected between the second chamber 32 and the second pipe opening 36, the first control valve 37 is opened, the second chamber 32 and the second pipe opening 36 are connected, and external air can enter the carbon canister 22, and the first control valve 37 is closed, the second chamber 32 and the second pipe opening 36 are disconnected, and external air cannot enter the carbon canister 22.

[0043] The working principle of the carbon canister desorption valve is that when the pressure of the fuel tank 21 is higher than the atmospheric pressure, the fuel vapor will enter the carbon canister 22 through the adsorption tube 26 and be adsorbed by the activated carbon particles in the carbon canister 22. When the amount of fuel vapor adsorbed by the activated carbon reaches saturation, the carbon canister desorption valve will open, and the fuel vapor adsorbed on the activated carbon will flow into the desorption tube 27 under the pressure difference between the atmosphere and the activated carbon, and mix with the outside air to enter the engine 24 cylinder to participate in combustion.

[0044] Reference Figure 1 As shown, the engine module 20 further includes: a second control valve 25, the second control valve 25 is arranged between one end of the carbon canister 22 and the engine 24, and the first control valve 37 and the second control valve 25 selectively conduct the fuel air passage. Specifically, the second control valve 25 can be a carbon canister solenoid valve, and the second control valve 25 can control whether the fuel vapor and air enter the engine 24, that is, when the second control valve 25 is opened, the fuel vapor and air can enter the engine 24 from the desorption pipe 27, and when the second control valve 25 is closed, the fuel vapor and air cannot enter the engine 24 to participate in combustion.

[0045] Reference Figure 1As shown, the power assembly 100 further includes: a controller 40, the controller 40 is electrically connected to the first control valve 37 and the second control valve 25, and the controller 40 is used to control the first control valve 37 and the second control valve 25 to open when the engine 24 is working. For example, when the engine 24 is in a flameout condition, the controller 40 can control the first control valve 37 and the second control valve 25 to close, and at this time, the fuel vapor in the fuel tank 21 escapes from the fuel tank 21 and adheres to the carbon canister 22 through the adsorption pipe 26, and the specific path is: fuel tank 21-adsorption pipe 26-carbon canister 22. For another example, when the engine 24 needs fuel combustion, that is, the carbon canister 22 desorption condition, the controller 40 can control the first control valve 37 and the second control valve 25 to open, and the outside air enters the carbon canister 22 through the first control valve 37 and the second ventilation pipe 23, and brings the fuel vapor in the carbon canister 22 into the desorption pipe 27 and the engine 24, and finally burns in the engine 24. The specific path is: stop valve 30 - second ventilation pipe 23 - carbon canister 22 - desorption pipe 27 - second control valve 25 - engine 24 .

[0046] Reference Figure 1 As shown, the transmission module 10 further includes: a third control valve 13, which is disposed between the stop valve 30 and the first ventilation pipe 12, and the third control valve 13 selectively conducts the first ventilation pipe 12. Specifically, the third control valve 13 may be a solenoid valve, and the third control valve 13 may control the connection between the first ventilation pipe 12 and the external environment.

[0047] Reference Figure 1 As shown, the power assembly 100 further includes a pressure sensor 50, which is disposed in the first ventilation pipe 12 and is used to obtain the pressure in the first ventilation pipe 12. The pressure sensor 50 can be used to monitor the pressure of the first ventilation pipe 12, thereby determining whether the third control valve 13 is opened or closed.

[0048] Reference Figure 1 As shown, the controller 40 is electrically connected to the third control valve 13 and the pressure sensor 50. The controller 40 is used to control the third control valve 13 to open when the pressure in the first ventilation pipe 12 is greater than a preset value. The controller 40 can receive and monitor the pressure data obtained by the pressure sensor 50, and make a decision to control the third control valve 13 to open or close according to the change of the pressure data.

[0049] Specifically, the controller 40 classifies the data obtained by the pressure sensor 50, sets the calibration threshold γ (the calibration threshold γ can be determined in combination with the vehicle test calibration), and when the pressure monitored by the pressure sensor 50 is less than the calibration threshold γ, the controller 40 controls the third controller 40 to close, that is, the air path of the transmission 11 is in a closed state. When the pressure monitored by the pressure sensor 50 is greater than or equal to the calibration threshold γ, the controller 40 controls the third control valve 13 to open, and the air path of the transmission 11 is in an open state, so that the transmission 11 can be depressurized to prevent the occurrence of lubricating oil leakage caused by excessive pressure in the transmission 11.

[0050] Furthermore, a filter is provided in both the first chamber 31 and the second chamber 32. The first chamber 31 and the second chamber 32 filter the outside air through the filter to prevent sand and other debris from entering the first ventilation pipe 12, prevent the lubricating oil from emulsifying and deteriorating, and reduce safety hazards. The filter can be a filter screen, a filter element, or a combination of the two, and the filter element can be made of paper, non-woven fabric, fabric, glass fiber, activated carbon and other materials.

[0051] A vehicle according to an embodiment of the second aspect of the utility model includes a power assembly 100 .

[0052] 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, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A powertrain, characterized in that: include: a transmission module, the transmission module comprising a transmission and a first vent pipe connected to each other; An engine module, the engine module comprising: a fuel tank, a carbon canister, a second ventilation pipe and an engine, the fuel tank, one end of the carbon canister and the engine are connected in series, and the second ventilation pipe is connected to the other end of the carbon canister; A stop valve is provided with a first chamber and a second chamber separated from each other, the first ventilation pipe is connected to one end of the first chamber, the second ventilation pipe is connected to one end of the second chamber, and the other end of the first chamber and the other end of the second chamber are both connected to the outside.

2. The powertrain according to claim 1, characterized in that: The stop valve includes: a shell, a partition, a first pipe opening and a second pipe opening, the partition is arranged in the shell and divides the shell into the first chamber and the second chamber, the first pipe opening is connected to the first chamber and the first ventilation pipe, and the second pipe opening is connected to the second chamber and the second ventilation pipe.

3. The powertrain according to claim 2, characterized in that: The stop valve further includes: a first control valve, the first control valve is connected between the second chamber and the second pipe opening, and the first control valve is selectively opened to allow external air to selectively enter the carbon canister.

4. The powertrain according to claim 3, characterized in that: The engine module further includes: a second control valve, which is disposed between one end of the carbon canister and the engine, and the first control valve and the second control valve selectively connect a fuel ventilation path.

5. The powertrain according to claim 4, characterized in that: Also includes: A controller is electrically connected to the first control valve and the second control valve, and is used to control the first control valve and the second control valve to open when the engine is working.

6. The powertrain according to claim 5, characterized in that: The transmission module further includes a third control valve, which is disposed between the cut-off valve and the first ventilation pipe and selectively conducts the first ventilation pipe.

7. The powertrain according to claim 6, characterized in that: Also includes: A pressure sensor is disposed in the first ventilation pipe and is used to obtain the pressure in the first ventilation pipe.

8. The powertrain according to claim 7, characterized in that: The controller is electrically connected to the third control valve and the pressure sensor, and is used for controlling the third control valve to open when the pressure in the first ventilation pipe is greater than a preset value.

9. The powertrain according to claim 1, characterized in that: Filter elements are disposed in both the first chamber and the second chamber.

10. A vehicle, characterized in that: include: The powertrain according to any one of claims 1 to 9.

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