Vehicle fatigue reminding system, vehicle fatigue reminding method and vehicle

Abstract

The invention relates to a vehicle fatigue reminding system, a vehicle fatigue reminding method and a vehicle, and the system comprises a steering wheel which is provided with a gas release mechanism; and the gas storage mechanism is connected with the gas release mechanism through a circulation pipeline, the circulation pipeline is provided with a first opening and closing valve, and the first opening and closing valve is used for being in signal connection with a whole vehicle ECU. The gas release mechanism is installed on the steering wheel, after the first opening and closing valve is opened, gas in the gas storage mechanism can directly act on a driver from the steering wheel when flowing to the gas release mechanism through the circulation pipeline, and the problems that in the related technology, the time from releasing smell to acting on the nose of the human body is long, and the reminding effect is delayed are solved. And the reminding effect is limited.

Description

Technical Field

[0001] The present application relates to the technical field of truck components, and in particular to a vehicle fatigue reminder system, a vehicle fatigue reminder method and a vehicle. Background Art

[0002] With the advancement of automobile technology, more and more cars are equipped with driver fatigue monitoring devices. When the fatigue monitoring device detects signs of driver fatigue driving, it will actively remind the driver. About fatigue driving reminders: Drivers may become fatigued and sleepy after long-term driving, which affects safety. Monitoring the driver's status and reminding them when fatigue and sleepiness are found can help improve safety. There are two commonly used monitoring methods: using a camera to shoot the driver, using image recognition technology to detect fatigue manifestations such as eyelid closure and head drooping, or monitoring driving behaviors such as intermittent large-angle turns. Traditional reminder methods include vision (flashing indicator lights), hearing (alarm sounds), and touch (seat or steering wheel vibrations).

[0003] In the related art, some vehicles are also equipped with an odor reminder method, which reminds the driver by releasing a gas with a reminder function. However, the odor bottle in the gas release device is placed at the door position, and it takes a long time for the odor to be released to act on the human nose, so the reminder effect is delayed, and a large amount of odorant is required to achieve the reminder function, so the reminder effect is limited. Summary of the invention

[0004] The present application provides a vehicle fatigue reminder system, a vehicle fatigue reminder method and a vehicle, which can solve the technical problems in the related art that the odor bottle in the gas release device is placed at the door position, the time for the odor to be released to act on the human nose is long, the reminder effect is delayed, and a large amount of odorant is required to realize the reminder function, resulting in limited reminder effect.

[0005] In a first aspect, an embodiment of the present application provides a vehicle fatigue reminder system, comprising: a steering wheel, the steering wheel being equipped with a gas release mechanism; a gas storage mechanism, the gas storage mechanism and the gas release mechanism being connected through a flow pipeline, and the flow pipeline being equipped with a first opening and closing valve, the first opening and closing valve being used to connect to the vehicle ECU signal.

[0006] In combination with the first aspect, in one embodiment, the circulation pipeline includes a main pipeline and a first branch pipeline connected to the main pipeline, the end of the main pipeline away from the first branch pipeline is connected to the gas storage mechanism, and the main pipeline is equipped with a pressure sensor, and the first opening and closing valve is installed on the first branch pipeline; the main pipeline is also connected to a second branch pipeline on the side away from the gas storage mechanism, the other end of the second branch pipeline is connected to the outside world, the second branch pipeline is connected in parallel with the first branch pipeline, and the second branch pipeline is equipped with a second opening and closing valve, and the second opening and closing valve is used to connect to the vehicle ECU signal.

[0007] In combination with the first aspect, in one embodiment, the gas storage mechanism includes a gas bottle and a gas charging port disposed at one end of the gas bottle, the gas bottle is detachably fixed to the spokes of the steering wheel, and the gas bottle is located in a shield of the steering wheel, the gas charging port is connected to the gas release mechanism through the flow pipeline, so that the gas bottle is in communication with the gas release mechanism.

[0008] In combination with the first aspect, in one embodiment, a mounting bracket is fixed to the gas cylinder, the mounting bracket is detachably mounted on the spokes of the steering wheel, and a vibration reduction device is installed between the mounting bracket and the spokes of the steering wheel.

[0009] In combination with the first aspect, in one embodiment, the gas release mechanism includes: a grille cover, which is fixed to the horn cover of the steering wheel; a release pipe, which is fixed to the grille cover and connected to the flow pipeline, and the grille cover is connected to the flow pipeline through the release pipe.

[0010] In combination with the first aspect, in one embodiment, the gas storage mechanism is fixed to the spokes of the steering wheel, the steering wheel is provided with a through hole, and the flow pipeline is provided through the through hole to connect the gas storage mechanism with the release pipe.

[0011] In the second aspect, an embodiment of the present application provides a vehicle fatigue reminder method, which adopts the above-mentioned vehicle fatigue reminder system, and the vehicle fatigue reminder method includes the following steps: when it is monitored that the driver is driving fatigued, the first opening and closing valve is controlled to open, so that the gas in the gas storage mechanism is sprayed toward the driver through the circulation pipeline.

[0012] In combination with the second aspect, in one embodiment, the circulation pipeline includes a main pipeline and a first branch pipeline connected to the main pipeline, the main pipeline is also connected to a second branch pipeline connected in parallel with the first branch pipeline, the first opening and closing valve is installed on the first branch pipeline, the first branch pipeline is connected to the main pipeline and the gas release mechanism, and the vehicle fatigue reminder method also includes: real-time monitoring of the pressure value of the gas storage mechanism, and comparing the monitored pressure value with a preset pressure value; when the pressure value of the gas storage mechanism is greater than the preset pressure value, controlling the second opening and closing valve installed on the second branch pipeline to open, so that the gas storage mechanism is connected to the outside world.

[0013] In combination with the second aspect, in one embodiment, the vehicle fatigue reminder method also includes: when the first on-off valve is in a closed state, real-time monitoring of the pressure value change of the gas storage mechanism within a preset time; if the pressure value gradually decreases, controlling the second on-off valve to open so that the gas storage mechanism is connected to the outside world; if not, controlling the second on-off valve to close.

[0014] In a third aspect, an embodiment of the present application provides a vehicle, which includes the above-mentioned vehicle fatigue reminder system.

[0015] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0016] By installing the gas release mechanism on the steering wheel, after the first opening and closing valve is opened, the gas in the gas storage mechanism flows to the gas release mechanism through the circulation pipeline, and can directly act on the driver from the steering wheel, thereby solving the technical problems in the related technology that it takes a long time for the odor to be released to act on the human nose, the reminder effect is delayed, and the reminder effect is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a structure in which a gas release mechanism and a gas storage mechanism provided in an embodiment of the present application are connected via a flow pipeline;

[0019] Figure 2 A schematic diagram of the main structure of a hose connected to a release tube provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a structure in which a gas storage mechanism provided in an embodiment of the present application is installed on a wheel spoke via a mounting bracket;

[0021] Figure 4 A schematic diagram of a three-dimensional structure in which a gas storage mechanism provided in an embodiment of the present application is fixed to a steering wheel;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of a grille cover provided in an embodiment of the present application installed on a steering wheel.

[0023] In the figure:

[0024] 1. Steering wheel; 11. Spokes; 12. Perforations;

[0025] 21. Release pipe; 22. Grille cover;

[0026] 3. Gas storage mechanism; 31. Gas storage cylinder; 32. Gas filling port;

[0027] 41. Main pipeline; 411. Pressure sensor; 412. Connector; 42. First branch pipeline; 421. First on-off valve; 43. Second branch pipeline; 431. Second on-off valve; 44. Hose;

[0028] 5. Mounting bracket; 51. Rubber gasket;

[0029] 6. Floor. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] The embodiment of the present application provides a vehicle fatigue reminder system, which can solve the technical problems in the related art that the odor bottle in the gas release device is placed at the door position, the time for the odor to be released to act on the human nose is long, the reminder effect is delayed, and a large amount of odorant is required to realize the reminder function, resulting in limited reminder effect.

[0032] See also Figure 1As shown, a vehicle fatigue reminder system provided by an embodiment of the present application may include: a steering wheel 1, wherein the steering wheel 1 is equipped with a gas release mechanism, which can release gas from the steering wheel 1 so that the gas acts directly on the driver; a gas storage mechanism 3, wherein the gas storage mechanism 3 is connected to the gas release mechanism through a circulation pipeline, and the circulation pipeline is equipped with a first opening and closing valve 421, wherein the first opening and closing valve 421 is used to connect with the vehicle ECU signal, and the vehicle ECU can control the opening and closing of the first opening and closing valve 421 to connect or disconnect the gas storage mechanism 3 with the gas release mechanism.

[0033] In the embodiment of the present application, a gas release mechanism is installed on the steering wheel 1. When the driver is driving the vehicle, the steering wheel 1 is usually facing the driver. After the first opening and closing valve 421 is opened, the gas in the gas storage mechanism 3 flows to the gas release mechanism through the circulation pipeline, and can directly act on the driver from the steering wheel 1. The path from the release of the gas to the effect on the driver is short, and the driver can smell the released gas almost immediately. Moreover, the gas has just been released from the gas release mechanism, and the concentration of the gas has not been completely diluted by the surrounding air. The driver can smell the high-concentration gas in a relatively short time. The human body has a certain sense of smell and can distinguish abnormal odors and judge potential dangers based on the smell. Therefore, the driver can be reminded, which solves the technical problems in the related art that it takes a long time for the odor to be released to act on the human nose, the reminder effect is delayed, and the reminder effect is limited.

[0034] In some optional embodiments, the circulation pipeline includes a main pipeline 41 and a first branch pipeline 42 connected to the main pipeline 41, the end of the main pipeline 41 away from the first branch pipeline 42 is connected to the gas storage mechanism 3, and the main pipeline 41 is installed with a pressure sensor 411, and the first opening and closing valve 421 is installed on the first branch pipeline 42; the side of the main pipeline 41 away from the gas storage mechanism 3 is also connected to a second branch pipeline 43, the other end of the second branch pipeline 43 is connected to the outside, the second branch pipeline 43 is connected in parallel with the first branch pipeline 42, and the second branch pipeline 43 is installed with a second opening and closing valve 431, and the second opening and closing valve 431 is used to connect with the vehicle ECU signal. The outside world connected to the other end of the second branch pipe 43 may refer to the outside of the vehicle. Specifically, the second branch pipe 43 may pass through the vehicle from the inside of the vehicle through the vehicle floor 6. When the first on-off valve 421 is closed and the second on-off valve 431 is opened, the gas in the gas storage mechanism 3 is released outside the vehicle through the main pipe 41 and then through the second branch pipe 43. In the embodiment of the present application, the first branch pipe 42 and the second branch pipe 43 are connected in parallel, so that the gas can flow into the first branch pipe 42 or the second branch pipe 43 after passing through the main pipe 41. The flow direction of the gas can be controlled by the first on-off valve 421 and the second on-off valve 431. Whether the first on-off valve 421 and the second on-off valve 431 are closed or opened or not can be controlled by the vehicle ECU. The vehicle ECU can be connected to the pressure sensor 411 signal, that is, by monitoring the pressure value in the pressure sensor 411, it is determined whether the first on-off valve 421 and the second on-off valve 431 are opened. The first on-off valve 421 and the second on-off valve 431 can be closed at the same time, or the second on-off valve 431 can be closed when the first on-off valve 421 is opened, or the second on-off valve 431 can be opened when the first on-off valve 421 is closed. However, in some special cases, the first on-off valve 421 and the second on-off valve 431 can also be opened at the same time. Further, the first on-off valve 421 and the second on-off valve 431 can both be set as solenoid valves, preferably one-way valves.

[0035] In some optional embodiments, the gas storage mechanism 3 includes a gas cylinder 31 and a gas filling port 32 disposed at one end of the gas cylinder 31, the gas cylinder 31 is detachably fixed to the spoke 11 of the steering wheel, and the gas cylinder 31 is located in the shield of the steering wheel, and the gas filling port 32 is connected to the gas release mechanism through the flow pipeline, so that the gas cylinder 31 is connected to the gas release mechanism. The gas cylinder 31 can be fixed on the back of the steering wheel 1 frame. This arrangement allows the vehicle fatigue reminder system to be installed in various types of vehicles such as passenger cars and commercial vehicles. In passenger cars, the reverse wheel is usually built with an airbag. Fixing the gas cylinder 31 on the back of the steering wheel 1 frame can avoid the gas cylinder 31 from affecting the deployment or installation of the airbag; in commercial vehicles, the gas cylinder 31 is fixed on the back of the steering wheel 1 frame, which can effectively utilize the layout space of the steering wheel in the commercial vehicle, and the gas cylinder 31 is installed without affecting the driver's operation.

[0036] Furthermore, the gas filling port 32 of the gas cylinder 31 can not only be used for inflation, but also for releasing gas into the circulation pipeline. In the embodiment of the present application, the gas cylinder 31 is made of metal, and the gas filled therein is composed of an odorant and an inert filling gas. The packaging pressure is higher than the atmospheric pressure, generally 2 to 3 atmospheres, that is, the pressure of a bicycle tire. The selected odorant should be a gas at room temperature and not condensed; the odor can be smelled under low concentration conditions, and the odorant smell and other odors can be identified; it is harmless to the human body, has low toxicity, and the odor lasts for a long time; it can be irritating but not too strong. If the onion smell is used, it is indeed helpful for the driver to wake up, but constant tears will also affect safe driving; the chemical properties are stable, the gas state is non-corrosive, and it is easy to store and transport; it is not easy to burn, or the perceptible concentration in the air is significantly lower than the explosion limit. For example, methyl mercaptan (molecular formula CH3SH, boiling point 6.2°C), a commonly used odorant in natural gas, can be used as an odorant, and other gases with certain odors can also be used, such as simulating the smell of burnt hair. The concentration of odorizer is very low. The common concentration of methyl mercaptan in natural gas is 20 mg / m 3 Therefore, it is necessary to inject a filling gas into the gas cylinder 31 as a medium. If compressed air is used, the chemically active oxygen in the air may react chemically with the odorant under long-term storage conditions to render it ineffective. Therefore, nitrogen with low cost and stable chemical properties can be used as the filling gas. Preferably, the shape of the gas cylinder 31 is customized according to the internal space of the steering wheel 1 and has a certain pressure resistance.

[0037] See also Figure 3As shown, in some optional embodiments, the gas cylinder 31 is fixed with a mounting bracket 5, the mounting bracket 5 is detachably mounted on the spoke 11 of the steering wheel, and a vibration reduction device is installed between the mounting bracket 5 and the spoke 11 of the steering wheel. The gas cylinder 31 is indirectly fixed to the spoke 11 of the steering wheel through the mounting bracket 5. At this time, the mounting bracket 5 and the gas cylinder 31 are both installed on the back of the spoke 11 of the steering wheel 1, and the back may refer to the side away from the driver when the steering wheel 1 is installed on the vehicle. The gas cylinder 31 and the mounting bracket 5 can be jointly set as a flat box structure; the mounting bracket 5 can be detachably mounted on the spoke 11 of the steering wheel 1 by bolt connection, and when the gas pressure in the gas cylinder 31 is insufficient and needs to be inflated, the mounting bracket 5 can be removed from the spoke 11 of the steering wheel; in addition, the vibration reduction device can be set as a rubber gasket 51, and the rubber gasket 51 is installed between the mounting bracket 5 and the spoke 11 of the steering wheel 1 to reduce the impact of vehicle vibration on the gas cylinder 31 during vehicle driving. In the embodiment of the present application, the installation bracket 5 can ensure that the gas cylinder 31 is not in direct contact with the steering wheel 1 body, thereby avoiding gas leakage caused by friction between the two, and at the same time reducing the heat transferred from the steering wheel 1 to the gas cylinder 31 (the steering wheel 1 may be exposed to direct sunlight), thereby improving safety. In addition, the installation bracket 5 can also adapt to the uneven position of the spoke 11 of the steering wheel 1, thereby enhancing the stability of the installation of the gas cylinder 31.

[0038] In some optional embodiments, see Figure 5 As shown, the gas release mechanism may include: a grille cover 22, the grille cover 22 is fixed to the horn cover of the steering wheel, and a vehicle logo is usually installed on the horn cover of the steering wheel, so the grille cover 22 and the installation point of the vehicle logo are spaced apart; a release pipe 21, the release pipe 21 is fixed to the grille cover 22, and the release pipe 21 is connected to the flow pipeline, the grille cover 22 is connected to the flow pipeline through the release pipe 21, and the release pipe 21 can be used as a gas injection port to eject the pressurized gas from the release port through the grille cover 22. In the embodiment of the present application, by installing the grille cover 22 on the horn cover, the release pipe 21 and the grille cover 22 can be integrated, effectively utilizing the space and structure on the steering wheel 1 to adapt to the vehicle fatigue reminder system. In some other embodiments, the grille cover 22 can also be close to the installation point of the vehicle logo.

[0039] In some optional embodiments, see Figure 4As shown, the gas storage mechanism 3 is fixed to the spoke 11 of the steering wheel, and the steering wheel 1 is provided with a through hole 12. The flow pipe is passed through the through hole 12 to connect the gas storage mechanism 3 with the release pipe 21. It should be understood that the through hole 12 on the steering wheel 1 can be specially opened for the passage of the flow pipe, or the original through hole 12 structure of the vehicle can be utilized. At this time, the gas storage mechanism 3 is installed on the back of the spoke 11. In the embodiment of the present application, the through hole 12 is opened separately and is located on the side of the steering wheel facing the driver. The gas release mechanism can be installed on the front side of the steering wheel 1 frame, that is, the side close to the driver when the steering wheel 1 is installed on the vehicle, and the release pipe 21 is facing the driver's face. Therefore, passing the flow pipe through the through hole 12 can connect the flow pipe to the release pipe 21 and the gas storage mechanism 3. The circulation pipeline can be set as a hose 44, and a connector 412 can be fixed at one end of the circulation pipeline close to the gas storage mechanism 3. The connector 412 can be threadedly connected to the inflation port 32 of the gas cylinder 31. It can be considered that the connector 412 and the inflation head adopt a connection method similar to that of a car or bicycle tire and an air pump. In the embodiment of the present application, the gas cylinder 31 and the inflation port 32, the release tube 21, the pressure sensor 411, the first on-off valve 421 and the second on-off valve 431 installed thereon can all be installed under the steering wheel 1 cover, and the first on-off valve 421, the second on-off valve 431, the pressure sensor 411 and the release tube 21 can be an integrated package assembly. For further information, see Figure 2 As shown, the release tube 21 can be set as a hard pipe mouth, which can be connected to the hose 44. The specific connection method can be that a protrusion along the radial direction of the hard pipe mouth is set at the end away from the speaker cover, and the inner wall of the hose 44 is sealed by cooperating with the protrusion to achieve a sealed connection. The connection can withstand the gas pressure when the system is working normally, but the pulling force of the connecting part has an upper limit, that is, when the steering wheel 1 cover and the steering wheel 1 body (that is, the steering wheel 1 frame are relatively pulled apart, the hose 44 will be disengaged from the hard pipe mouth. If the built-in airbag of the steering wheel 1 is ignited and deployed, since the deployment direction of the airbag is toward the driver, it will not have a direct impact on the gas storage bottle 31 on the back of the frame. When the airbag is deployed, the steering wheel 1 cover will be subjected to a large force and separated from the steering wheel 1 body. At this time, the bottom of the hard pipe mouth is disconnected from the connection with the hose 44 due to the pulling force, which does not affect the deployment of the airbag.

[0040] See also Figure 4 and Figure 5As shown, preferably, the gas cylinder 31 is installed on the back of the spoke 11 of the steering wheel 1, so that the gas cylinder 31 is less affected by external heat sources such as sunlight, and is safer. Even if an accident such as an explosion occurs, the driver will not be injured by the shielding of the metal frame. Further, the first opening and closing valve 421, the second opening and closing valve 431 and the pressure sensor 411 and other structures can use the circuit interface of the original functional assembly in the vehicle to solve the power supply and electrical communication problems, and establish an electrical connection with the vehicle fatigue reminder system through the original electrical connector of the steering wheel 1 and the dashboard, so as to achieve collaborative work.

[0041] The embodiment of the present application also provides a vehicle fatigue reminder method, which adopts the above-mentioned vehicle fatigue reminder system, and is characterized in that the vehicle fatigue reminder method includes the following steps: when it is monitored that the driver is driving fatigued, the first opening and closing valve 421 is controlled to open, so that the gas in the gas storage mechanism 3 is sprayed toward the driver through the circulation pipeline. Monitoring the driver's fatigue driving can be achieved by using the original fatigue monitoring system on the vehicle, such as using a camera to capture the driver's facial information, and when yawning and other situations are found, it is judged that fatigue driving occurs. After controlling the first opening and closing valve 421 to open, the gas with a certain pressure in the gas storage bottle 31 flows through the main pipeline 41 to the first branch pipeline 42 and finally flows to the release pipe 21 to spray toward the driver.

[0042] Furthermore, the vehicle fatigue reminder method in the embodiment of the present application should also use the vehicle speed signal, that is, the vehicle ECU reads the current vehicle speed control signal, and only when the vehicle speed is not 0, the odor reminder function is activated after judging that the driver is driving fatigued. In addition, the odor reminder function can work in conjunction with other fatigue reminder functions, and other fatigue reminder functions can use one or two reminder methods such as sound (such as beeping), light signal (flashing indicator light) or vibration (seat and / or steering wheel built-in vibration motor) to remind. When the driver is detected to be driving fatigued, other fatigue reminder functions other than the odor reminder are first enabled. Within a period of time (such as 15 minutes), if other fatigue reminders are repeated three times, they are used when the driver is still detected to be driving fatigued next time. In the embodiment of the present application, by coordinating the odor reminder with other fatigue reminders, the driver can be reminded in multiple directions, so that the driver can stay awake as much as possible, and enhance driving safety.

[0043] Preferably, when the odor reminder function is turned on, the gas injection can be pulsed, with each injection time of 0.1s to 0.2s. After the injection, the driver's state will continue to be monitored. If the driver is still in a state of fatigue and sleepiness, the next injection will be started. The injection interval is not less than 15s, and a maximum of 3 injections are allowed. After the gas injection is started, conventional reminders (sound, light, vibration) should remain in a continuous working state. If the driver is still detected to be in a fatigued state after 3 gas injections, follow-up measures will be taken, such as automatic pull-over parking (for vehicles with automatic driving functions), notification of relevant parties (including but not limited to the police, relatives, fleet managers, in the form of phone calls / text messages / mobile phone APP messages), etc. When the pressure in the gas cylinder 31 is too low to support the injection, a fault code is sent to the driver through the instrument, prompting the replacement of the gas cylinder 31, and the odor reminder function is disabled at the same time.

[0044] In some optional embodiments, the circulation pipeline includes a main pipeline 41 and a first branch pipeline 42 connected to the main pipeline 41, the main pipeline 41 is also connected to a second branch pipeline 43 connected in parallel with the first branch pipeline 42, the first opening and closing valve 421 is installed on the first branch pipeline 42, the first branch pipeline 42 connects the main pipeline 41 and the gas release mechanism, and the vehicle fatigue reminder method may also include: real-time monitoring of the pressure value of the gas storage mechanism 3, and comparing the monitored pressure value with a preset pressure value; when the pressure value of the gas storage mechanism 3 is greater than the preset pressure value, controlling the second opening and closing valve 431 installed on the second branch pipeline 43 to open, so that the gas storage mechanism 3 is connected to the outside world. Real-time monitoring of the pressure value of the gas storage mechanism 3 can be achieved by installing a pressure sensor 411 at the main pipeline 41, and connecting the pressure sensor 411 to the vehicle ECU signal to obtain the change in the pressure value of the gas storage mechanism 3; it should be understood that if the gas in the gas cylinder 31 needs to be released to act on the driver, it is in the process of releasing the gas, and in this process, the pressure value in the gas cylinder 31 should be in a reduced state. Therefore, when the pressure value of the gas storage mechanism 3 is greater than the preset pressure value, the first opening and closing valve 421 and the second opening and closing valve 431 can be in a closed state before this. The pressure value of the gas storage mechanism 3 is greater than the preset pressure value, which may mean that the pressure of the gas cylinder 31 is abnormally increased. At this time, a fault code can be sent to the driver through the instrument to raise the driver's attention to troubleshooting. If the pressure sensor 411 detects that the pressure value has increased to a dangerous state, in order to ensure the safety of the vehicle environment, the pressure is actively released. At this time, the vehicle ECU can control the second opening and closing valve 431 to open, and the first opening and closing valve 421 is still closed, so that the gas in the gas cylinder 31 is discharged from the second opening and closing valve 431 to the outside of the vehicle.

[0045] In some optional embodiments, the vehicle fatigue reminder method may further include: when the first on-off valve 421 is in a closed state, real-time monitoring of the pressure value change of the gas storage mechanism 3 within a preset time; if the pressure value gradually decreases, the second on-off valve 431 is controlled to open, so that the gas storage mechanism 3 is connected to the outside; if not, the second on-off valve 431 is controlled to close. The vehicle ECU can continuously monitor the change of the pressure value in the pressure sensor 411. When the first on-off valve 421 is closed, it means that the odor reminder function is not turned on, but the value in the pressure sensor 411 continues to decrease, it can be considered that there is a risk of gas leakage in the gas cylinder 31 or the circulation pipeline, which may have an adverse effect on the driver. In order to reduce the impact of gas leakage on the driver, the pressure release function is also started at this time, the second on-off valve 431 is opened, the first on-off valve 421 is continuously closed, and the remaining gas flows out of the vehicle from the main pipeline 41 through the second branch pipeline 43.

[0046] Furthermore, when the vehicle airbag is ignited and deployed, the vehicle ECU determines that the vehicle is involved in a traffic accident. In order to prevent the gas cylinder 31 as a pressure vessel from being squeezed and causing danger, the pressure is actively released. The vehicle ECU controls the second opening and closing valve 431 to be in an open state and the first opening and closing valve 421 to be in a closed state. The gas in the gas cylinder 31 flows to the outside of the vehicle through the hose 44, that is, flows out of the passenger compartment.

[0047] An embodiment of the present application also provides a vehicle, which may include the above-mentioned vehicle fatigue reminder system. The vehicle may include the vehicle fatigue reminder system in any of the above-mentioned embodiments, which will not be repeated here.

[0048] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0049] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0050] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A vehicle fatigue reminder system, characterized in that: It includes: A steering wheel (1), wherein the steering wheel (1) is provided with a gas release mechanism; A gas storage mechanism (3), wherein the gas storage mechanism (3) is connected to the gas release mechanism via a flow pipeline, and the flow pipeline is provided with a first opening and closing valve (421), and the first opening and closing valve (421) is used for connecting to a vehicle ECU signal.

2. The vehicle fatigue reminder system according to claim 1, characterized in that: The circulation pipeline comprises a main pipeline (41) and a first branch pipeline (42) connected to the main pipeline (41); one end of the main pipeline (41) away from the first branch pipeline (42) is connected to the gas storage mechanism (3); a pressure sensor (411) is installed on the main pipeline (41); and the first on-off valve (421) is installed on the first branch pipeline (42); A second branch pipeline (43) is also connected to a side of the main pipeline (41) away from the gas storage mechanism (3); the other end of the second branch pipeline (43) is connected to the outside; the second branch pipeline (43) is connected in parallel with the first branch pipeline (42); and a second opening and closing valve (431) is installed on the second branch pipeline (43); the second opening and closing valve (431) is used to connect to the vehicle ECU signal.

3. The vehicle fatigue reminder system according to claim 1, characterized in that: The gas storage mechanism (3) comprises a gas bottle (31) and a gas charging port (32) arranged at one end of the gas bottle (31); the gas bottle (31) is detachably fixed to the spoke (11) of the steering wheel, and the gas bottle (31) is located in the shield of the steering wheel; the gas charging port (32) is connected to the gas release mechanism through the flow pipeline, so that the gas bottle (31) is connected to the gas release mechanism.

4. The vehicle fatigue reminder system according to claim 3, characterized in that: The gas storage bottle (31) is fixed with a mounting bracket (5), the mounting bracket (5) is detachably mounted on the spokes (11) of the steering wheel, and a vibration reduction device is installed between the mounting bracket (5) and the spokes (11) of the steering wheel.

5. The vehicle fatigue reminder system according to claim 1, characterized in that: The gas release mechanism comprises: A grille cover (22), wherein the grille cover (22) is fixed to a horn cover of the steering wheel; A release pipe (21), wherein the release pipe (21) is fixed to the grille cover (22), and the release pipe (21) is in communication with the flow pipeline; the grille cover (22) is in communication with the flow pipeline through the release pipe (21).

6. The vehicle fatigue reminder system according to claim 5, characterized in that: The gas storage mechanism (3) is fixed to the spokes (11) of the steering wheel, the steering wheel (1) is provided with a through hole (12), and the flow pipeline is passed through the through hole (12) to connect the gas storage mechanism (3) with the release pipe (21).

7. A vehicle fatigue reminder method, which uses the vehicle fatigue reminder system according to any one of claims 1 to 6, characterized in that: The vehicle fatigue reminder method comprises the following steps: When it is detected that the driver is driving fatigued, the first opening and closing valve (421) is controlled to open, so that the gas in the gas storage mechanism (3) is sprayed toward the driver through the circulation pipeline.

8. The vehicle fatigue reminder method according to claim 7, characterized in that: The circulation pipeline comprises a main pipeline (41) and a first branch pipeline (42) connected to the main pipeline (41); the main pipeline (41) is further connected to a second branch pipeline (43) connected in parallel with the first branch pipeline (42); the first opening and closing valve (421) is installed on the first branch pipeline (42); the first branch pipeline (42) is connected to the main pipeline (41) and the gas release mechanism; the vehicle fatigue reminder method further comprises: monitoring the pressure value of the gas storage mechanism (3) in real time, and comparing the monitored pressure value with a preset pressure value; When the pressure value of the gas storage mechanism (3) is greater than a preset pressure value, the second on-off valve (431) installed on the second branch pipeline (43) is controlled to open, so that the gas storage mechanism (3) is connected to the outside.

9. The vehicle fatigue reminder method according to claim 8, characterized in that: The vehicle fatigue reminder method further includes: When the first on-off valve (421) is in a closed state, real-time monitoring of changes in the pressure value of the gas storage mechanism (3) within a preset time; If the pressure value gradually decreases, the second opening and closing valve (431) is controlled to open so that the gas storage mechanism (3) is connected to the outside; if not, the second opening and closing valve (431) is controlled to close.

10. A vehicle, characterized in that: It includes the vehicle fatigue reminder system as described in any one of claims 1 to 6.

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