Sensor, vehicle control system and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a sensor, a vehicle control system and a vehicle, the sensor comprises a shell, a humidity sensitive chip and a waterproof breathable piece, and the shell is provided with an inner cavity and a breathable hole communicating with the inner cavity; the humidity sensitive chip is arranged in the inner cavity; the waterproof ventilation piece is arranged on the shell to block the ventilation hole. When the sensor is used, gas in the environment enters the inner cavity of the shell through the air holes, and the humidity of the gas in the inner cavity is detected through the humidity-sensitive chip. By arranging the waterproof ventilation piece for blocking the ventilation hole in the shell, gas in the environment can penetrate through the ventilation hole to enter the inner cavity, and impurities such as liquid and dust in the environment are prevented from penetrating through the ventilation hole, so that the impurities such as the liquid and the dust are blocked on the outer side of the shell, and it is guaranteed that the sensor can be applied to the environment with the impurities such as the liquid and the dust; therefore, the sensor can be suitable for humidity detection of an internal combustion engine system.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, specifically to a sensor, a vehicle control system, and a vehicle. Background Technology

[0002] Vehicles are typically equipped with sensors to detect gases at specific locations, thereby improving vehicle performance. Currently, there is no dedicated humidity sensor for internal combustion engine systems, making it impossible to detect humidity in these systems. Therefore, there is an urgent need to design a humidity sensor suitable for internal combustion engine systems. Utility Model Content

[0003] This disclosure proposes a sensor for humidity detection in internal combustion engine systems.

[0004] The sensor disclosed herein includes a housing, a humidity-sensitive chip, and a waterproof and breathable component. The housing has an inner cavity and a vent hole communicating with the inner cavity. The humidity-sensitive chip is disposed in the inner cavity. The waterproof and breathable component is disposed in the housing to seal the vent hole.

[0005] Optionally, the humidity-sensitive chip is opposite to the vent, and the humidity-sensitive chip is spaced a predetermined distance from the waterproof and breathable component.

[0006] Optionally, the inner cavity is further provided with a circuit board, and the humidity-sensitive chip is disposed on the circuit board.

[0007] Optionally, a temperature-sensitive chip is also provided in the inner cavity, and the temperature-sensitive chip is disposed on the circuit board and arranged offset from the vent hole.

[0008] Optionally, the humidity-sensitive chip includes a detection end and a connection end, the detection end being opposite to the vent hole, and the connection end being connected to the circuit board; the inner cavity includes a first space and a second space, the vent hole communicating with the first space, the detection end being located in the first space, the second space being separated from the first space, and the circuit board and the connection end being located in the second space.

[0009] Optionally, the inner cavity is provided with a sealing body that encloses the circuit board to divide the interior of the inner cavity into the first space and the second space.

[0010] Optionally, a sealing sleeve is provided in the inner cavity, the sealing sleeve is fitted over the outside of the humidity-sensitive chip, the detection end is exposed at one end of the sealing sleeve, and the other end of the sealing sleeve is wrapped by the sealing body.

[0011] Optionally, the housing includes a bottom shell and a cover plate, the cover plate being connected to the bottom shell and forming the inner cavity, and a portion of the sealing body being disposed at the connection between the cover plate and the bottom shell.

[0012] Optionally, the sensor further includes an electrical connector, a first end of which is electrically connected to the circuit board, a second end of which is used for electrical connection to an external component, and a sealing body that encloses the first end of the electrical connector.

[0013] Optionally, the housing further includes a mounting portion for mounting the sensor, wherein the second end of the electrical connector is disposed in the mounting portion.

[0014] Optionally, the mounting part is provided with mounting holes, and the mounting holes and the second end of the electrical connector are arranged at intervals.

[0015] Optionally, the sealing body includes a sealant.

[0016] Optionally, the waterproof and breathable component includes a waterproof and breathable membrane disposed in the inner cavity.

[0017] This disclosure also proposes a vehicle control system.

[0018] The vehicle control system disclosed herein includes a sensor, a control system, and an exhaust gas recirculation system. The sensor is any of the sensors described above. The sensor is used to detect the intake temperature and humidity of the engine. The control system is signal-connected to the sensor. The control system is signal-connected to the exhaust gas recirculation system. The control system adjusts the operating conditions of the exhaust gas recirculation system according to the intake temperature and humidity of the engine detected by the sensor.

[0019] This disclosure also proposes another vehicle control system.

[0020] The vehicle control system disclosed herein includes a sensor, an air conditioning system, and a control system. The sensor is any of the sensors described above and is used to detect the temperature and humidity inside the vehicle. The air conditioning system is signal-connected to the control system. The control system is signal-connected to the sensor and adjusts the operating conditions of the air conditioning system according to the incoming temperature and humidity inside the vehicle detected by the sensor.

[0021] This disclosure also proposes a vehicle.

[0022] The vehicle disclosed herein includes any of the sensors described above, and / or any of the vehicle control systems described above.

[0023] In use, the sensor disclosed herein allows ambient gas to enter the inner cavity of the housing through a vent. A humidity-sensitive chip detects the humidity of the gas within the inner cavity, thus determining the humidity of the environment in which the sensor operates. By incorporating a waterproof and breathable component that seals the vent in the housing, ambient gas can pass through the vent into the inner cavity, while liquids, dust, and other impurities are prevented from passing through. This keeps liquids, dust, and other impurities outside the housing, ensuring the sensor can be used in environments containing liquids, dust, and other impurities. This improves the sensor's adaptability and makes it suitable for humidity detection in internal combustion engine systems. Attached Figure Description

[0024] Figure 1 This is a perspective view of a sensor according to an embodiment of the present disclosure.

[0025] Figure 2 This is an exploded view of a sensor according to an embodiment of this disclosure.

[0026] Figure 3 This is a cross-sectional view of a sensor according to another embodiment of this disclosure.

[0027] Figure 4 This is a flowchart of a vehicle control system according to an embodiment of the present disclosure.

[0028] Figure 5 This is a flowchart of a vehicle control system according to another embodiment of the present disclosure.

[0029] Figure label:

[0030] 10. Sensors;

[0031] 1. Housing; 11. Vent hole; 12. First space; 13. Second space; 14. Detection section; 15. Mounting part; 151. Insertion interface; 152. Insert; 1521. Mounting hole; 16. Sealing groove; 101. Bottom shell; 1011. Slot; 102. Cover plate; 1021. Insertion part;

[0032] 2. Humidity-sensitive chip; 21. Detection end; 22. Connection end;

[0033] 3. Waterproof and breathable components;

[0034] 4. Temperature-sensitive chip;

[0035] 5. Circuit board;

[0036] 6. Sealing body;

[0037] 7. Sealing sleeve;

[0038] 8. Electrical connector; 81. First end; 82. Second end;

[0039] 9. Sealing ring. Detailed Implementation

[0040] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0041] like Figures 1 to 3 As shown, the sensor 10 of this embodiment includes a housing 1, a humidity-sensitive chip 2, and a waterproof and breathable component 3. The housing 1 has an inner cavity and a vent 11 communicating with the inner cavity. The humidity-sensitive chip 2 is disposed in the inner cavity, and the waterproof and breathable component 3 is disposed in the housing 1 to seal the vent 11.

[0042] In use, the sensor 10 of this embodiment allows ambient gas to enter the inner cavity of the housing 1 through the vent 11. The humidity-sensitive chip 2 detects the humidity of the gas in the inner cavity, thereby obtaining the humidity of the environment in which the sensor 10 is located. By providing a waterproof and breathable component 3 that seals the vent 11 in the housing 1, ambient gas can pass through the vent 11 into the inner cavity, while preventing liquids, dust, and other impurities from passing through the vent 11. This keeps liquids, dust, and other impurities outside the housing 1, ensuring that the sensor 10 can be used in environments containing liquids, dust, and other impurities. This improves the adaptability of the sensor 10 and makes it suitable for humidity detection in internal combustion engine systems.

[0043] Optionally, such as Figure 2 As shown, the waterproof and breathable component 3 includes a waterproof and breathable membrane disposed in the inner cavity.

[0044] The waterproof and breathable membrane can be ultrasonically welded to the shell 1.

[0045] By placing the waterproof and breathable membrane inside the cavity, the risk of environmental debris coming into contact with the membrane can be reduced, as can the risk of debris clogging the vents 11 and improving the reliability of the sensor 10. Furthermore, placing the waterproof and breathable membrane inside the cavity also improves the aesthetic appearance of the sensor 10.

[0046] Optionally, such as Figure 2 As shown, the humidity-sensitive chip 2 is opposite to the vent 11, and the humidity-sensitive chip 2 is spaced at a predetermined distance from the waterproof and breathable component 3.

[0047] The humidity-sensitive chip 2 is opposite to the vent 11, which can be understood as follows: the orthographic projection of the humidity-sensitive chip 2 in the direction toward the waterproof and breathable component 3 and the orthographic projection of the vent 11 in the direction toward the waterproof and breathable component 3 at least partially coincide.

[0048] The predetermined distance can be designed as needed. While ensuring that the gap between the humidity-sensitive chip 2 and the waterproof and breathable component 3 can accommodate enough gas, that is, while ensuring the accuracy of the humidity-sensitive chip 2 in detecting the humidity of the gas in the environment, the predetermined distance can be designed to be smaller.

[0049] By setting the humidity-sensitive chip 2 opposite to the vent 11 and spacing the humidity-sensitive chip 2 and the waterproof and breathable component 3 at a predetermined distance, the humidity-sensitive chip 2 can fully contact the gas in the environment, thereby improving the detection accuracy of the sensor 10.

[0050] Optionally, such as Figure 2 and Figure 3 As shown, a circuit board 5 is also provided in the inner cavity, and the humidity-sensitive chip 2 is located on the circuit board 5.

[0051] The humidity-sensitive chip 2 can be integrated onto the circuit board 5 using a surface mount technology.

[0052] By placing circuit board 5 inside the cavity, the humidity-sensitive chip 2 can be fixed on circuit board 5. Then, circuit board 5 is connected to external components to realize the transmission of humidity signals detected by humidity-sensitive chip 2. This facilitates the transmission of humidity signals detected by humidity-sensitive chip 2.

[0053] In some embodiments, such as Figure 3 As shown, a temperature-sensitive chip 4 is also provided in the inner cavity. The temperature-sensitive chip 4 is located on the circuit board 5 and is arranged separately from the vent hole 11.

[0054] The temperature-sensitive chip 4 and the vent hole 11 are staggered, which can be understood as: the orthographic projection of the temperature-sensitive chip 4 in the direction toward the waterproof and breathable component 3 is staggered with the orthographic projection of the vent hole 11 in the direction toward the waterproof and breathable component 3.

[0055] Among them, the temperature-sensitive chip 4 can be integrated onto the circuit board 5 using a surface mount technology.

[0056] By placing a temperature-sensitive chip 4 inside the cavity, the temperature of the gas in the environment can be detected, enriching the functions of the sensor 10 and enabling the sensor 10 to integrate humidity detection and temperature detection functions. In addition, the temperature-sensitive chip 4 is staggered from the vent hole 11, which can prevent the temperature-sensitive chip 4 from being in a high-humidity environment and improve the reliability of the temperature-sensitive chip 4.

[0057] Optionally, such as Figure 2 As shown, the humidity-sensitive chip 2 includes a detection end 21 and a connection end 22. The detection end 21 is opposite to the vent 11, and the connection end 22 is connected to the circuit board 5. The inner cavity includes a first space 12 and a second space 13. The vent 11 is connected to the first space 12, the detection end 21 is located in the first space 12, the second space 13 is separated from the first space 12, and the circuit board 5 and the connection end 22 are located in the second space 13.

[0058] In this embodiment, the detection end 21 is opposite to the vent hole 11, which can be understood as follows: the orthographic projection of the detection end 21 in the direction toward the waterproof and breathable component 3 at least partially coincides with the orthographic projection of the vent hole 11 in the direction toward the waterproof and breathable component 3. In this embodiment, the sensor 10 has its detection end 21 directly facing the vent hole 11.

[0059] It is understandable that when the humidity-sensitive chip 2 detects the humidity of the gas, the detection end 21 of the humidity-sensitive chip 2 needs to come into contact with the humid air, resulting in a high humidity in the space where the detection end 21 is located. The circuit board 5 and other components are prone to corrosion and other problems when they are in a high-humidity environment for a long time, which can cause the sensor 10 to fail.

[0060] The sensor 10 of this embodiment sets the inner cavity into a first space 12 and a second space 13 that are separated. The detection end 21 of the humidity-sensitive chip 2 is located in the first space 12, and the circuit board 5 and the connection end 22 are located in the second space 13. This ensures that humid air is only located in the first space 12 and will not enter the second space 13 where the circuit board 5 and the connection end 22 are located. This can prevent the circuit board 5 and other components from being in a high-humidity environment for a long time and thus improve the reliability of the sensor 10.

[0061] Optionally, such as Figure 2 As shown, a sealing body 6 is provided in the inner cavity, and the sealing body 6 encloses the circuit board 5 to divide the interior of the inner cavity into a first space 12 and a second space 13.

[0062] By setting a sealing body 6 in the inner cavity and using the sealing body 6 to wrap the circuit board 5 to divide the inner cavity into a first space 12 and a second space 13, the sealing performance between the first space 12 and the second space 13 can be improved, and the reliability of the sensor 10 can be further improved.

[0063] Optionally, such as Figure 2 As shown, a sealing sleeve 7 is provided in the inner cavity. The sealing sleeve 7 is fitted outside the humidity-sensitive chip 2. The detection end 21 is exposed through one end of the sealing sleeve 7, and the other end of the sealing sleeve 7 is wrapped by the sealing body 6.

[0064] For example, both ends of the sealing sleeve 7 are open, and the detection end 21 is exposed to the outside through one end of the sealing sleeve 7 to achieve contact with the gas in the first space 12. The other end of the sealing sleeve 7 is abutted against the circuit board 5 and is wrapped by the sealing body 6.

[0065] By setting a sealing sleeve 7 in the inner cavity, which is fitted over the humidity-sensitive chip 2 and the sealing body 6 wraps around the sealing sleeve 7, the connection between the humidity-sensitive chip 2 and the circuit board 5 can be double-sealed, preventing humid air from entering the connection between the humidity-sensitive chip 2 and the circuit board 5 and corroding the connection between the humidity-sensitive chip 2 and the circuit board 5, thus causing the connection between the humidity-sensitive chip 2 and the circuit board 5 to break, thereby further improving the reliability of the sensor 10.

[0066] Optionally, such as Figure 2 and Figure 3 As shown, the housing 1 includes a bottom shell 101 and a cover plate 102, with the cover plate 102 connected to the bottom shell 101 and forming an inner cavity. A portion of the sealing body 6 is located at the connection between the cover plate 102 and the bottom shell 101. The bottom shell 101 and the cover plate 102 can be ultrasonically welded.

[0067] By placing a portion of the sealing body 6 at the connection between the cover plate 102 and the bottom shell 101, the sealing body 6 can be used to seal the connection between the cover plate 102 and the bottom shell 101, thereby improving the sealing performance of the shell 1. Optionally, the sealing body 6 includes a sealant.

[0068] By making the sealing body 6 include sealant, when assembling the sensor 10, the humidity chip 2, the temperature chip 4 and the circuit board 5 can be installed into the bottom shell 101 first, then the cover plate 102 is connected to the bottom shell 101, and then sealant is poured into the inner cavity. After the sealant cures, the sealing body 6 is formed.

[0069] By making the sealing body 6 include sealant, the cover plate 102 and the bottom shell 101 can be connected by sealant, which improves the connection reliability between the cover plate 102 and the bottom shell 101, and further improves the reliability of the sensor 10.

[0070] Optionally, such as Figure 2 As shown, one of the cover plate 102 and the bottom shell 101 is provided with a slot 1011, and the other of the cover plate 102 and the bottom shell 101 is provided with a plug-in portion 1021, which is inserted into the slot 1011. A portion of the sealing body 6 is provided in the slot 1011, such that a portion of the sealing body 6 is located at the connection between the cover plate 102 and the bottom shell 101.

[0071] For example, the bottom shell 101 is provided with a slot 1011, and the cover plate 102 is provided with a plug-in part 1021. The plug-in part 1021 is inserted into the slot 1011. Sealant is injected into the inner cavity, and the sealant flows into the slot 1011. After the sealant cures, a sealing body 6 is formed, thereby connecting the cover plate 102 and the bottom shell 101 at the joint using the sealant. Optionally, such as Figure 2 and Figure 3 As shown, the sensor 10 also includes an electrical connector 8. The first end 81 of the electrical connector 8 is electrically connected to the circuit board 5, and the second end 82 of the electrical connector 8 is used for electrical connection to an external component. The sealing body 6 encloses the first end 81 of the electrical connector 8.

[0072] Among them, electrical connector 8 can be a pin.

[0073] By wrapping the first end 81 of the electrical connector 8 with the sealing body 6, the connection between the electrical connector 8 and the circuit board 5 can be sealed, preventing humid air from entering the connection between the electrical connector 8 and the circuit board 5 and corroding the connection between the electrical connector 8 and the circuit board 5, which could lead to the connection between the electrical connector 8 and the circuit board 5 being disconnected, thereby further improving the reliability of the sensor 10.

[0074] Optionally, such as Figure 1 and Figure 2 As shown, the housing 1 includes a detection section 14 and a mounting section 15, the mounting section 15 being used to mount the sensor 10. The circuit board 5 is disposed in the detection section 14, and the second end 82 of the electrical connector 8 is disposed in the mounting section 15.

[0075] When installing the sensor 10, the detection section 14 can extend into the environment to be detected. For example, the detection section 14 can extend into the pipeline, and the mounting part 15 can be located outside the environment to be detected.

[0076] By providing a mounting part 15 in the housing 1 and placing the second end 82 of the electrical connector 8 in the mounting part 15, it is convenient to install and fix the sensor 10.

[0077] Optionally, the extension direction of the detection section 14 intersects with the extension direction of the mounting section 15.

[0078] The extension direction of the detection section 14 and the extension direction of the mounting section 15 can be perpendicular to each other or form an acute angle.

[0079] By setting the extension direction of the detection section 14 to intersect with the extension direction of the mounting part 15, the length of the sensor 10 in the extension direction of the detection section 14 and the length in the extension direction of the mounting part 15 can be reduced, thereby improving the structural compactness of the sensor 10 and reducing the space occupied by the sensor 10.

[0080] Optionally, the mounting part 15 is provided with a plug-in interface 151, and the second end 82 of the electrical connector 8 is located in the plug-in interface 151.

[0081] When installing the sensor 10, the external component is plugged into the connector, and the second end 82 is electrically connected to the external component to achieve the connection between the sensor 10 and the external component.

[0082] By providing an interface 151 in the mounting section 15, it is convenient to connect the sensor 10 to external components, which helps to improve the installation efficiency of the sensor 10.

[0083] Optionally, such as Figure 2 As shown, a portion of the inner cavity is located in the detection section 14, another portion of the inner cavity is located in the mounting section 15, a portion of the sealing body 6 (not shown in the figure) is located in the mounting section 15, and the portion of the electrical connector 8 located between the first end 81 and the second end 82 is wrapped by the sealing body 6.

[0084] When assembling the sensor 10, the electrical connector 8 can be electrically connected to the circuit board 5 and installed into the inner cavity. Then, sealant is applied to the inner cavity. After the sealant cures, a sealing body 6 is formed, which is used to fix the electrical connector 8.

[0085] Optionally, such as Figure 1 and Figure 3 As shown, the mounting part 15 is provided with mounting holes 1521, and the mounting holes 1521 and the electrical connectors 8 are arranged at intervals along the extending direction of the mounting part 15.

[0086] When installing the sensor 10, a fastener can be passed through the mounting hole 1521 to fix the sensor 10. The fastener can be a bolt, screw, etc.

[0087] By arranging the mounting hole 1521 and the electrical connector 8 at intervals along the extension direction of the mounting portion 15, interference between the mounting hole 1521 and the electrical connector 8 can be avoided.

[0088] Optionally, the mounting part 15 is fitted with an insert 152, and a mounting hole 1521 is provided in the insert 152.

[0089] The insert 152 can be a metal insert, and the shell 1 is a plastic shell. The insert 152 and the shell 1 are integrally injection molded.

[0090] By setting the insert 152, the structural strength of the mounting hole 1521 can be improved, ensuring the installation reliability of the sensor 10.

[0091] Optionally, a sealing ring 9 is provided at the end of the detection section 14 near the mounting part 15.

[0092] For example, such as Figure 3 As shown, the detection section 14 is provided with a sealing groove 16 at one end near the installation part 15, and the sealing ring 9 is fitted inside the sealing groove 16.

[0093] When installing sensor 10, an installation port can be opened in the pipeline, and detection section 14 extends into the pipeline through the installation port to detect the gas in the pipeline. By setting a sealing ring 9, the sealing ring 9 can be used to seal the installation port, thereby preventing gas leakage in the pipeline.

[0094] The assembly method of sensor 10 according to the embodiments of this disclosure:

[0095] Circuit board 5 is snapped into bottom shell 101, and circuit board 5 is soldered to electrical connector 8. Humidity-sensitive chip 2 and temperature-sensitive chip 4 are integrated and fixed to circuit board 5 by surface mount technology. Waterproof and breathable membrane is fixed to cover plate 102 by ultrasonic welding. Then, cover plate 102 is snapped into bottom shell 101. After that, glue is poured into the inner cavity of shell 1. After the glue cures, a sealing body 6 is formed, so that the inner cavity forms a first space 12 and a second space 13 for dry and wet separation. Finally, sealing ring 9 is fitted onto the outside of shell 1.

[0096] like Figure 4 As shown, the vehicle control system of this embodiment includes a sensor 10, a control system, and an exhaust gas recirculation (EGR) system. The sensor 10 is the same as the sensor 10 described in any of the above embodiments. The sensor 10 is used to detect the intake temperature and humidity of the engine. The control system is signal-connected to the sensor 10 and signal-connected to the exhaust gas recirculation system. The control system adjusts the operating conditions of the exhaust gas recirculation system according to the intake temperature and humidity of the engine detected by the sensor.

[0097] The sensor 10 can be used to detect the humidity and temperature of the engine's intake air. For example, the detection section 14 of the sensor 10 is inserted into the engine's intake manifold to detect the humidity and temperature of the gas inside the intake manifold.

[0098] For example, after the engine starts, sensor 10 is powered on and works to detect the intake air temperature and humidity of the engine in real time. Sensor 10 communicates one-way with the control system. The control system judges the current environmental conditions based on the intake air temperature and humidity information and, in combination with the fuel combustion situation, dynamically adjusts the EGR operating conditions to avoid problems such as reduced engine efficiency or even misfire caused by excessive condensate generated by EGR. At the same time, it dynamically adjusts the intake working strategy to effectively exert the fuel-saving potential of EGR.

[0099] This improves the reliability of the vehicle control system and enhances engine safety and fuel economy. The vehicle control system can possess data processing and diagnostic capabilities, enabling it to diagnose and promptly output fault codes from sensor 10 based on its own operating conditions.

[0100] like Figure 5 As shown, the vehicle control system of this embodiment includes a sensor 10, an air conditioning system, and a control system. The sensor 10 is the same as the sensor 10 described in any of the above embodiments, and the sensor 10 can be used to detect the temperature and humidity inside the vehicle. The air conditioning system is signal-connected to the control system, and the control system is signal-connected to the sensor 10. The control system adjusts the operating conditions of the air conditioning system according to the air temperature and humidity inside the vehicle detected by the sensor.

[0101] This allows for the regulation of temperature and humidity inside the vehicle.

[0102] The vehicle in this disclosure includes the sensor 10 described in any of the above embodiments, and / or the vehicle control system described in any of the above embodiments.

[0103] The sensor 10 of this disclosure addresses environmental adaptability issues in the engine intake system environment, improves its resistance to dirt and contamination, and effectively enhances product durability and reliability. Furthermore, it saves space in vehicle applications, allowing for a more compact vehicle design.

[0104] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0105] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0106] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0107] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0108] In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0109] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A sensor, characterized in that, include: A housing having an inner cavity and a vent communicating with the inner cavity; A humidity-sensitive chip, wherein the humidity-sensitive chip is disposed in the inner cavity; A waterproof and breathable component is provided on the housing to seal the vent holes.

2. The sensor according to claim 1, characterized in that, The humidity-sensitive chip is opposite to the vent, and the humidity-sensitive chip is spaced at a predetermined distance from the waterproof and breathable component.

3. The sensor according to claim 1, characterized in that, The inner cavity is also equipped with a circuit board, and the humidity-sensitive chip is located on the circuit board.

4. The sensor according to claim 3, characterized in that, The inner cavity is also equipped with a temperature-sensitive chip, which is located on the circuit board and is staggered from the vent hole.

5. The sensor according to claim 3, characterized in that, The humidity-sensitive chip includes a detection end and a connection end, the detection end being opposite to the vent hole, and the connection end being connected to the circuit board; The inner cavity includes a first space and a second space. The vent is connected to the first space. The detection end is located in the first space. The second space is separated from the first space. The circuit board and the connection end are located in the second space.

6. The sensor according to claim 5, characterized in that, The inner cavity is provided with a sealing body, which encloses the circuit board to divide the interior of the inner cavity into the first space and the second space.

7. The sensor according to claim 6, characterized in that, The inner cavity is provided with a sealing sleeve, which is fitted over the humidity-sensitive chip. The detection end is exposed at one end of the sealing sleeve, and the other end of the sealing sleeve is wrapped by the sealing body.

8. The sensor according to claim 6, characterized in that, The housing includes a bottom shell and a cover plate, the cover plate being connected to the bottom shell and forming the inner cavity, and a portion of the sealing body being disposed at the connection between the cover plate and the bottom shell.

9. The sensor according to claim 6, characterized in that, The sensor also includes an electrical connector, the first end of which is electrically connected to the circuit board, and the second end of which is used for electrical connection to an external component. The sealing body covers the first end of the electrical connector.

10. The sensor according to claim 9, characterized in that, The housing also includes a mounting portion for mounting the sensor; the second end of the electrical connector is located at the mounting portion.

11. The sensor according to any one of claims 6-10, characterized in that, The sealing body includes sealant.

12. The sensor according to any one of claims 1-10, characterized in that, The waterproof and breathable component includes a waterproof and breathable membrane disposed in the inner cavity.

13. A vehicle control system, characterized in that, include: The sensor is the sensor according to any one of claims 1-12, and the sensor is used to detect the intake air temperature and humidity of the engine; A control system, wherein the control system is connected to the sensor signal; An exhaust gas recirculation system, wherein the control system is signal-connected to the exhaust gas recirculation system; The control system adjusts the operating conditions of the exhaust gas recirculation system based on the engine intake temperature and humidity detected by the sensors.

14. A vehicle control system, characterized in that, include: The sensor is the sensor according to any one of claims 1-12, and the sensor is used to detect the temperature and humidity inside the vehicle; A control system, wherein the control system is connected to the sensor signal; An air conditioning system, wherein the air conditioning system is signal-connected to the control system; The control system adjusts the operating conditions of the air conditioning system based on the air temperature and humidity inside the vehicle detected by the sensors.

15. A vehicle, characterized in that, Includes the sensor according to any one of claims 1-12, and / or the vehicle control system according to claim 13, and / or the vehicle control system according to claim 14.

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