A vehicle fatigue reminding system, a vehicle fatigue reminding method and a vehicle

Abstract

The application relates to a vehicle fatigue reminding system, a vehicle fatigue reminding method and a vehicle, which comprises a steering wheel, a gas releasing mechanism is installed on the steering wheel; a gas storage mechanism is connected with the gas releasing mechanism through a flow pipeline, and a first opening and closing valve is installed on the flow pipeline, and the first opening and closing valve is connected with a vehicle ECU signal. When the first opening and closing valve is opened, the gas in the gas storage mechanism flows to the gas releasing mechanism through the flow pipeline, and can directly act on the driver from the steering wheel, thereby solving the technical problems that in the related art, the smell is released to the human nose for a long time, the reminding effect is delayed, and the reminding effect is limited.

Description

TECHNICAL FIELD

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

[0002] With the progress of automobile technology, more and more automobiles begin to be equipped with driver fatigue monitoring devices. When the fatigue monitoring device monitors that the driver has fatigue driving signs, the driver will be actively reminded. About fatigue driving reminding: the driver may appear fatigue and drowsiness phenomenon for a long time, which affects safety. Monitoring the state of the driver and reminding when fatigue and drowsiness behavior is found can help improve safety. Common monitoring methods include two kinds: using a camera to shoot the driver to detect fatigue performance such as eyelid closure and head drooping by image recognition technology, or monitoring driving behavior such as interval large-angle steering. Traditional reminding methods include vision (indicator light flickering), hearing (alarm sound), and touch (seat or steering wheel vibration).

[0003] In related technologies, some vehicles are also provided with an odor reminding method, which reminds the driver by releasing a gas with a reminding function. However, the odor bottle in the gas release device is placed at the door position, the odor is released to act on the human nose for a long time, the reminding effect is delayed, a large amount of odorant is needed to realize the reminding function, and the reminding effect is limited. SUMMARY

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

[0005] In a first aspect, the embodiments of the present application provide a vehicle fatigue reminding system, which comprises: a steering wheel, the steering wheel is installed with a gas release mechanism; a gas storage mechanism, the gas storage mechanism is connected with the gas release mechanism through a flow pipeline, and the flow pipeline is installed with a first on-off valve, and the first on-off valve is used for signal connection with a vehicle ECU.

[0006] In combination with the first aspect, in an implementation, the flow pipeline comprises a main pipeline and a first branch pipeline in communication with the main pipeline, one end of the main pipeline away from the first branch pipeline is connected to the gas storage mechanism, and the main pipeline is provided with a pressure sensor, and the first on-off valve is installed on the first branch pipeline; the main pipeline is further connected with a second branch pipeline on a side away from the gas storage mechanism, the other end of the second branch pipeline is in communication with the outside, the second branch pipeline is in parallel with the first branch pipeline, and the second branch pipeline is provided with a second on-off valve, and the second on-off valve is used to be connected with the vehicle ECU signal.

[0007] In combination with the first aspect, in an implementation, the gas storage mechanism comprises a gas cylinder and a gas filling port arranged at one end of the gas cylinder, the gas cylinder is detachably fixed to the spoke of the steering wheel, and the gas cylinder is located in the shroud of the steering wheel, the gas filling port is connected with the gas release mechanism through the flow pipeline, so that the gas cylinder is in communication with the gas release mechanism.

[0008] In combination with the first aspect, in an implementation, the gas cylinder is fixed with a mounting bracket, the mounting bracket is detachably mounted on the spoke of the steering wheel, and a damping device is mounted between the mounting bracket and the spoke of the steering wheel.

[0009] In combination with the first aspect, in an implementation, the gas release mechanism comprises a grille cover fixed to the horn cover of the steering wheel, and a release pipe fixed to the grille cover and in communication with the flow pipeline, and the grille cover is in communication with the flow pipeline through the release pipe.

[0010] In combination with the first aspect, in an implementation, the gas storage mechanism is fixed to the spoke of the steering wheel, the steering wheel is provided with a through hole, and the flow pipeline is arranged through the through hole to communicate the gas storage mechanism with the release pipe.

[0011] The second aspect provides a vehicle fatigue reminding method, which adopts the vehicle fatigue reminding system, and comprises the following steps: when it is monitored that the driver is in fatigue driving, the first on-off valve is controlled to be opened, so that the gas in the gas storage mechanism is sprayed to the driver through the flow pipeline.

[0012] In combination with the second aspect, in an implementation, the flow pipeline comprises a main pipeline and a first branch pipeline in communication with the main pipeline, the main pipeline further communicates a second branch pipeline in parallel with the first branch pipeline, the first on-off valve is installed on the first branch pipeline, the first branch pipeline communicates the main pipeline and the gas releasing mechanism, and the vehicle fatigue reminding method further comprises: monitoring a pressure value of the gas storage mechanism in real time, 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 a second on-off valve installed on the second branch pipeline to open, so that the gas storage mechanism is in communication with the outside.

[0013] In combination with the second aspect, in an implementation, the vehicle fatigue reminding method further comprises: when the first on-off valve is in a closed state, monitoring a pressure value change of the gas storage mechanism in a preset time in real time; if the pressure value gradually decreases, controlling the second on-off valve to open, so that the gas storage mechanism is in communication with the outside; if not, controlling the second on-off valve to close.

[0014] In a third aspect, an embodiment of the present application provides a vehicle comprising the vehicle fatigue reminding system described above.

[0015] The technical scheme provided by the embodiment of the present application has the following beneficial effects:

[0016] By installing the gas releasing mechanism on the steering wheel, when the gas in the gas storage mechanism flows to the gas releasing mechanism through the flow pipeline after the first on-off valve is opened, the gas can directly act on the driver from the steering wheel, thereby solving the technical problem that in the related art, the smell is released and acts on the human nose for a long time, the reminding effect is delayed, and the reminding effect is limited. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A structural schematic diagram of the gas releasing mechanism and the gas storage mechanism connected by the flow pipeline provided by the embodiment of the present application;

[0019] Figure 2 A front view structural schematic diagram of the hose connecting the releasing pipe provided by the embodiment of the present application;

[0020] Figure 3 A structural schematic diagram of the gas storage mechanism installed on the spoke by the mounting bracket provided by the embodiment of the present application;

[0021] Figure 4 A perspective view of a gas storage mechanism provided by the embodiment of the present application fixed to a steering wheel is shown in the figure.

[0022] Figure 5 A perspective view of a grid cover provided by the embodiment of the present application fixed to a steering wheel is shown in the figure.

[0023] In the figure:

[0024] 1, steering wheel; 11, spoke; 12, perforation;

[0025] 21, release pipe; 22, grid cover;

[0026] 3, gas storage mechanism; 31, gas cylinder; 32, gas filling port;

[0027] 41, main pipe; 411, pressure sensor; 412, connecting head; 42, first branch pipe; 421, first on-off valve; 43, second branch pipe; 431, second on-off valve; 44, hose;

[0028] 5, mounting bracket; 51, rubber gasket;

[0029] 6, floor. DETAILED DESCRIPTION

[0030] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person of ordinary skill in the art without making creative labor belong to the scope of protection of the present application.

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

[0032] Referring to Figure 1The vehicle fatigue reminding system provided by the embodiment of the application can include a steering wheel 1, the steering wheel 1 is provided with a gas releasing mechanism, the gas releasing mechanism can release gas from the steering wheel 1, and the gas directly acts on the driver; a gas storage mechanism 3, the gas storage mechanism 3 is connected with the gas releasing mechanism through a flow pipeline, and the flow pipeline is provided with a first on-off valve 421, the first on-off valve 421 is connected with the ECU of the vehicle, and the ECU of the vehicle can control the opening and closing of the first on-off valve 421, so that the gas storage mechanism 3 is connected or disconnected with the gas releasing mechanism.

[0033] In the embodiment of the application, the gas releasing mechanism is installed on the steering wheel 1, and the steering wheel 1 is usually opposite to the driver when the driver drives the vehicle. After the first on-off valve 421 is opened, the gas in the gas storage mechanism 3 flows to the gas releasing mechanism through the flow pipeline, and can directly act on the driver from the steering wheel 1. The path of the gas from the releasing to the acting on the driver is short, the driver can almost immediately smell the released gas, and the concentration of the gas is not diluted by the ambient air when the gas is released from the gas releasing mechanism. In a short time, the driver can smell the gas with high concentration. The human body has a certain sense of smell, can distinguish abnormal smell, and can judge potential danger according to the smell. Therefore, the driver can be reminded, and the technical problem that the gas smell is released to the human nose for a long time, the reminding effect is delayed, and the reminding effect is limited in the related art is solved.

[0034] In some optional embodiments, the flow pipeline comprises a main pipeline 41 and a first branch pipeline 42 in communication with 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, and the main pipeline 41 is provided with a pressure sensor 411, and the first on-off 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 with a second branch pipeline 43, the other end of the second branch pipeline 43 is in communication with the outside, the second branch pipeline 43 is in parallel with the first branch pipeline 42, and the second branch pipeline 43 is provided with a second on-off valve 431, and the second on-off valve 431 is used for signal connection with the vehicle ECU. The outside to which the other end of the second branch pipeline 43 is in communication can be the outside of the vehicle, specifically, the second branch pipeline 43 can pass through the vehicle room floor 6 from the inside of the vehicle to the outside of the vehicle, so that 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 to the outside of the vehicle via the main pipeline 41 and then the second branch pipeline 43. In the embodiments of the application, the first branch pipeline 42 and the second branch pipeline 43 are in parallel, so that the gas can flow into the first branch pipeline 42 or the second branch pipeline 43 after passing through the main pipeline 41, and the flow direction of the gas can be controlled by the first on-off valve 421 and the second on-off valve 431, and whether the first on-off valve 421 and the second on-off valve 431 are closed or opened can be controlled by the vehicle ECU, the vehicle ECU can be in signal connection with the pressure sensor 411, that is, whether the first on-off valve 421 and the second on-off valve 431 are opened or not can be determined by monitoring the pressure value in the pressure sensor 411. The first on-off valve 421 and the second on-off valve 431 can be closed at the same time, or the first on-off valve 421 is opened while the second on-off valve 431 is closed, or the first on-off valve 421 is closed while the second on-off valve 431 is opened, but 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 each be an electromagnetic valve, preferably a one-way valve.

[0035] In some alternative embodiments, the gas storage mechanism 3 comprises a gas cylinder 31 and a gas filling port 32 arranged 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 shroud of the steering wheel, the gas filling port 32 is connected with the gas release mechanism through the flow pipeline, so that the gas cylinder 31 is in communication with the gas release mechanism. The gas cylinder 31 can be fixed on the back of the steering wheel 1 framework, which can be installed in various types of vehicles such as passenger cars and commercial vehicles. In passenger cars, the airbag is usually built into the steering wheel, and fixing the gas cylinder 31 on the back of the steering wheel 1 framework can avoid affecting the deployment or installation of the airbag. In commercial vehicles, fixing the gas cylinder 31 on the back of the steering wheel 1 framework can effectively utilize the layout space of the steering wheel, and the installation of the gas cylinder 31 does not affect the operation of the driver.

[0036] Further, the gas filling port 32 of the gas cylinder 31 can not only fill gas, but also realize the effect of releasing gas into the flow pipeline. In the embodiment of the application, the gas cylinder 31 is made of metal, and the gas filled therein is composed of a stench agent and an inert filling gas. The packaging pressure is higher than the atmospheric pressure, generally 2-3 atmospheres, that is, the pressure of the bicycle tire. The selected stench agent should be a gas at room temperature and not condense. The stench can be smelled under low concentration conditions, and the stench agent smell can be identified from other smells. It is harmless to the human body, has low toxicity, and the smell lasts for a long time. It can have a certain irritation but not too strong. If onion smell is used, it is indeed beneficial to the driver's alertness, but constant tearing also affects safe driving. It is chemically stable, non-corrosive in gaseous state, easy to store and transport, not flammable, or the perceptible concentration in air is significantly lower than the explosion limit. For example, methyl mercaptan (molecular formula CH3SH, boiling point 6.2℃) commonly used in natural gas can be used as a stench agent. Other gases with a certain smell, such as simulated hair burning smell, etc. The concentration of the stench agent used is very low. The commonly used concentration of methyl mercaptan in natural gas is 20mg / m 3 Therefore, it is necessary to inject a filling gas as a medium into the gas cylinder 31. If compressed air is used, the chemically active oxygen in the air under long-term storage conditions may react with the stench agent to cause it to fail. Therefore, nitrogen gas with low cost and stable chemical properties can be used as a 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] Referring to Figure 3As shown, in some alternative 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 damping device is mounted between the mounting bracket 5 and the spoke 11 of the steering wheel. The gas cylinder 31 is indirectly fixed on 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 mounted on the back of the spoke 11 of the steering wheel 1. The back can 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 collectively arranged as a flat box structure. The mounting bracket 5 can be detachably mounted on the spoke 11 of the steering wheel 1. When the gas pressure in the gas cylinder 31 is insufficient and needs to be inflated, the mounting bracket 5 can be detached from the spoke 11 of the steering wheel. In addition, the damping device can be a rubber gasket 51 mounted between the mounting bracket 5 and the spoke 11 of the steering wheel 1 to reduce the influence of vehicle vibration on the gas cylinder 31 during vehicle driving. In the embodiment of the application, by arranging the mounting bracket 5, the gas cylinder 31 and the steering wheel 1 body can be prevented from directly contacting each other, thereby avoiding gas leakage caused by friction between the two, and reducing the heat transmitted from the steering wheel 1 to the gas cylinder 31 (the steering wheel 1 can be directly exposed to sunlight), thereby improving safety. In addition, by arranging the mounting bracket 5, the mounting bracket 5 can also adapt to uneven positions on the spoke 11 of the steering wheel 1, thereby enhancing the stability of the gas cylinder 31.

[0038] In some alternative embodiments, referring to Figure 5 As shown, the gas release mechanism can include: a grille cover 22 fixed to the horn cover of the steering wheel. The horn cover of the steering wheel usually also has a vehicle logo installed thereon. The grille cover 22 is arranged at a distance from the mounting point of the vehicle logo. A release pipe 21 is fixed to the grille cover 22, and the release pipe 21 communicates with the flow pipe. The grille cover 22 communicates with the flow pipe through the release pipe 21. The release pipe 21 can serve as a gas injection port to spray the gas with pressure from the release port through the grille cover 22. In the embodiment of the application, by arranging the grille cover 22 on the horn cover, the release pipe 21 and the grille cover 22 can be integrated, thereby effectively utilizing the space and structure of the steering wheel 1 to adapt to the vehicle fatigue reminding system. In some other embodiments, the grille cover 22 can also be arranged close to the mounting point of the vehicle logo.

[0039] In some alternative embodiments, referring to Figure 4As shown, the gas storage mechanism 3 is fixed to the spoke 11 of the steering wheel 1, the steering wheel 1 is provided with a through hole 12, the flow pipeline is arranged through the through hole 12 to communicate the gas storage mechanism 3 and the release pipe 21, it should be understood that the through hole 12 on the steering wheel 1 can be specially provided for the flow pipeline, or the original through hole 12 structure of the vehicle can be used, at this time the gas storage mechanism 3 is installed on the back of the spoke 11, in the embodiment of the application, the through hole 12 is separately provided and located on the side of the steering wheel facing the driver, the gas release mechanism can be installed on the front of the steering wheel 1 framework, the front is also the side close to the driver when the steering wheel 1 is installed on the vehicle, and the release pipe 21 is opposite to the face of the driver, therefore, the flow pipeline through the through hole 12 can make the flow pipeline communicate the release pipe 21 and the gas storage mechanism 3. The flow pipeline can be provided as a hose 44, a connecting head 412 can be fixed to one end of the flow pipeline close to the gas storage mechanism 3, the connecting head 412 can be screwed with the inflation port 32 of the gas cylinder 31, it can be considered that the connecting head 412 and the inflation head adopt a connection mode similar to the connection mode of the tire and the inflator of the automobile or bicycle. In the embodiment of the application, the gas cylinder 31 and the inflation port 32, the release pipe 21, the pressure sensor 411, the first on-off valve 421 and the second on-off valve 431 installed thereon can be installed under the cover of the steering wheel 1, and the first on-off valve 421, the second on-off valve 431, the pressure sensor 411 and the release pipe 21 can be an integrated assembly. Further, referring to Figure 2 As shown, the release pipe 21 can be provided as a hard pipe, which can be connected with the hose 44, and the connection mode can be that a protrusion along the radial direction is arranged at one end of the hard pipe away from the cover of the horn, the inner wall of the hose 44 is sealed and connected by cooperating with the protrusion, the connection can withstand the gas pressure in the normal working state of the system, but the pulling force of the connection part has an upper limit, that is, when the cover of the steering wheel 1 is separated from the body of the steering wheel 1 (that is, the steering wheel 1 framework), the hose 44 will be separated from the hard pipe. If the safety airbag inside the steering wheel 1 is ignited and deployed, since the deployment direction of the airbag is towards the driver, it will not directly affect the gas cylinder 31 on the back of the framework. When the steering wheel 1 cover is separated from the body of the steering wheel 1 under the great force of the airbag deployment, the lower part of the hard pipe connected with the hose 44 is separated under the pulling force, which does not affect the deployment of the safety airbag.

[0040] Referring to 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, and even if an accident such as explosion occurs, the metal frame will not harm the driver. Further, the first on-off valve 421, the second on-off 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 through the original electrical connection between the steering wheel 1 and the instrument panel, an electrical connection is established with the vehicle fatigue warning system to realize cooperative work.

[0041] The vehicle fatigue warning system provided by the embodiment of the present application also provides a vehicle fatigue warning method, which uses the vehicle fatigue warning system described above, and the vehicle fatigue warning method comprises the following steps: when it is monitored that the driver is in fatigue driving, the first on-off valve 421 is controlled to be opened, so that the gas in the gas storage mechanism 3 is sprayed to the driver through the flow pipe. The monitoring of the fatigue driving of the driver can be performed by using the original fatigue monitoring system of the vehicle, such as using a camera to shoot the facial information of the driver, and when yawning and other conditions are found, it is judged that the driver is in fatigue driving. After the first on-off valve 421 is controlled to be opened, the gas with a certain pressure in the gas cylinder 31 flows through the main pipe 41 to the first branch pipe 42 and finally flows to the release pipe 21 to be sprayed to the driver.

[0042] Further, the vehicle fatigue warning method in the embodiment of the present application also uses the past vehicle speed signal, that is, the current vehicle speed control signal is read by the vehicle ECU, and only when the vehicle speed is not 0, the smell warning function is started after it is judged that the driver is in fatigue driving. In addition, the smell warning function can work in cooperation with other fatigue warning functions, and the other fatigue warning functions can use one or two of the sound (such as emitting a dripping sound), light signal (flashing indicator light) or vibration (seat and / or built-in vibration motor of the steering wheel) warning methods, when it is monitored that the driver is in fatigue driving, the other fatigue warning function except the smell warning is used first, and if the other fatigue warning is repeatedly reminded three times within a period of time (such as 15 minutes), the smell warning is used when the driver is monitored again to be in fatigue driving next time. In the embodiment of the present application, by cooperating the smell warning with the other fatigue warning, the driver can be reminded from multiple directions, so that the driver can keep awake as much as possible, and the driving safety is enhanced.

[0043] Preferably, the gas injection can be in pulse mode when the smell prompting function is turned on, each injection time is 0.1s-0.2s, and the driver state is continuously monitored after the injection. If the driver is still in a fatigue and drowsy state, the next injection is started. The injection interval time is not less than 15s, and the maximum injection is 3 times. After the gas injection is started, the conventional prompt (sound, light, vibration) should be kept in a continuous working state. If the driver is still detected in a fatigue state after 3 times of gas injection, subsequent measures are taken, such as automatic parking (for vehicles with automatic driving function), notifying relevant parties (including but not limited to police, relatives, and vehicle fleet managers, and the mode can be telephone / sms / mobile APP message), etc. When the pressure in the gas cylinder 31 is low enough to support the injection, the driver is sent a fault code through the instrument to prompt the replacement of the gas cylinder 31, and the smell prompting function is disabled.

[0044] In some optional embodiments, the flow pipeline includes a main pipeline 41 and a first branch pipeline 42 in communication with the main pipeline 41, the main pipeline 41 also communicates with a second branch pipeline 43 in parallel with the first branch pipeline 42, the first on-off valve 421 is installed on the first branch pipeline 42, and the first branch pipeline 42 communicates the main pipeline 41 and the gas release mechanism. The vehicle fatigue prompting method can further include: 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 the 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 in communication with the outside. The pressure value of the gas storage mechanism 3 can be monitored in real time by installing a pressure sensor 411 at the main pipeline 41, and connecting the pressure sensor 411 with the vehicle ECU signal to obtain the change of the pressure value in the gas storage mechanism 3; it should be understood that when 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 decreasing state. Therefore, when the pressure value of the gas storage mechanism 3 is greater than the preset pressure value, the first on-off valve 421 and the second on-off valve 431 can be in a closed state before this time. The pressure value of the gas storage mechanism 3 greater than the preset pressure value can mean that the pressure of the gas cylinder 31 abnormally rises, at which time a fault code can be sent to the driver through the instrument to prompt the driver to pay attention to troubleshooting. If the pressure sensor 411 detects that the pressure value rises to a dangerous state, in order to ensure the safety of the vehicle environment, the pressure is actively released, at which time the vehicle ECU can control the second on-off valve 431 to open, and the first on-off valve 421 remains closed, so that the gas in the gas cylinder 31 is discharged from the second on-off valve 431 to the outside of the vehicle.

[0045] In some optional embodiments, the vehicle fatigue reminding method can further include: when the first on-off valve 421 is in the closed state, monitoring the pressure value change of the gas storage mechanism 3 in real time within a preset time; if the pressure value gradually decreases, the second on-off valve 431 is controlled to be opened, so that the gas storage mechanism 3 is in communication with the outside; if not, the second on-off valve 431 is controlled to be closed. The vehicle ECU can continuously monitor the pressure value change in the pressure sensor 411, when the first on-off valve 421 is closed, it is indicated that the smell reminding function is not started, but the value in the pressure sensor 411 continuously decreases, it can be considered that there is a risk of gas leakage in the gas cylinder 31 or the flow pipeline, which can cause adverse effects on the driver, in order to reduce the influence of gas leakage on the driver, the pressure release function is 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] Further, when the vehicle safety airbag is ignited and expanded, the vehicle ECU judges that the vehicle has a traffic accident, in order to prevent the gas cylinder 31 as a pressure container from being subsequently extruded to produce danger, the vehicle ECU controls the second on-off valve 431 to be in the opened state, and the first on-off valve 421 to be in the closed state, so that 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] The vehicle fatigue reminding system provided in the embodiments of the present application can be applied to a vehicle, and the vehicle can include the vehicle fatigue reminding system provided in the embodiments of the present application.

[0048] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower", etc. are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0050] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A vehicle fatigue alert system, characterized by, It includes: Steering wheel (1), the steering wheel (1) is installed with gas release mechanism; Gas storage mechanism (3), the gas storage mechanism (3) is connected with the gas release mechanism through flow pipeline, and the flow pipeline is installed with first on-off valve (421), and the first on-off valve (421) is used for signal connection with vehicle ECU; The flow pipeline includes main pipeline (41) and first branch pipeline (42) communicated with the main pipeline (41), one end of the main pipeline (41) far away from the first branch pipeline (42) is connected to the gas storage mechanism (3), and the main pipeline (41) is installed with pressure sensor (411), and the first on-off valve (421) is installed on the first branch pipeline (42); The main pipeline (41) far away from the gas storage mechanism (3) side is also connected with second branch pipeline (43), the other end of the second branch pipeline (43) is communicated with the outside world, the second branch pipeline (43) is parallelly connected with the first branch pipeline (42), and the second branch pipeline (43) is installed with second on-off valve (431), and the second on-off valve (431) is used for signal connection with vehicle ECU.

2. The vehicle fatigue reminding system of claim 1, wherein: The gas storage mechanism (3) includes a gas cylinder (31) and a gas inlet (32) provided 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 shroud of the steering wheel, the gas inlet (32) is connected with the gas release mechanism through the flow pipeline, so that the gas cylinder (31) is communicated with the gas release mechanism.

3. The vehicle fatigue reminding system of claim 2, wherein: 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 damping device is mounted between the mounting bracket (5) and the spoke (11) of the steering wheel.

4. The vehicle fatigue reminder system of claim 1, wherein, The gas release mechanism includes: A grille cover (22) is fixed to the horn cover of the steering wheel; A release pipe (21) is fixed to the grille cover (22), and the release pipe (21) is communicated with the flow pipeline, and the grille cover (22) is communicated with the flow pipeline through the release pipe (21).

5. The vehicle fatigue reminding system of claim 4, wherein: The gas storage mechanism (3) is fixed to the spoke (11) of the steering wheel, the steering wheel (1) is provided with a perforation (12), and the flow pipeline is arranged in the perforation (12) to communicate the gas storage mechanism (3) with the release pipe (21).

6. A vehicle fatigue reminding method employing the vehicle fatigue reminding system according to any one of claims 1 to 5, characterized by, The vehicle fatigue reminding method includes the following steps: When it is monitored that the driver appears fatigue driving, the first on-off valve (421) is opened to make the gas in the gas storage mechanism (3) sprayed to the driver through the flow pipeline. The flow pipeline comprises a main pipeline (41) and a first branch pipeline (42) communicated with the main pipeline (41), the main pipeline (41) is further communicated with a second branch pipeline (43) in parallel with the first branch pipeline (42), the first on-off valve (421) is installed on the first branch pipeline (42), the first branch pipeline (42) is communicated with the main pipeline (41) and the gas releasing mechanism, the vehicle fatigue reminding method further comprises: Real-time monitoring 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 on-off valve (431) installed on the second branch pipeline (43) to open, so that the gas storage mechanism (3) is communicated with the outside world.

7. The vehicle fatigue reminding method of claim 6, wherein The vehicle fatigue reminding method further comprises: When the first on-off valve (421) is in a closed state, real-time monitoring the pressure value change of the gas storage mechanism (3) within a preset time; If the pressure value gradually decreases, controlling the second on-off valve (431) to open, so that the gas storage mechanism (3) is communicated with the outside world; if not, controlling the second on-off valve (431) to close.

8. A vehicle characterized by comprising: The vehicle fatigue reminding system comprises the vehicle fatigue reminding system according to any one of claims 1-5.

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