Vehicle gas detection system and vehicle

By installing a gas sensing unit, digital potentiometer, and alarm module on gasoline vehicles, the problem of toxic gas leakage inside the hood of gasoline vehicles has been solved, enabling real-time detection and early warning, and improving driving safety and passenger safety.

CN223897372UActive Publication Date: 2026-02-10GUANGDONG AUTOMOTIVE TEST CENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520280105.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-02-10
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing technologies make it difficult to detect toxic gas leaks inside the hood of gasoline vehicles in real time, which affects vehicle performance and passenger safety.

Method used

The vehicle gas detection system, composed of a gas sensing unit, a digital potentiometer, a microcontroller, and an alarm module, can detect and display the content of toxic gases in real time and issue an alarm when toxic gases are detected.

Benefits of technology

It enables real-time detection and early warning of toxic gases inside the hood of gasoline vehicles, improving driving safety and passenger safety, and increasing the vehicle's intelligence level.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223897372U_ABST
    Figure CN223897372U_ABST
Patent Text Reader

Abstract

The utility model discloses a vehicle gas detection system and a vehicle, the vehicle gas detection system comprises a storage battery, a gas sensing unit and a digital potentiometer, the storage battery is carried in a front cover of the vehicle; the gas sensing unit is electrically connected with the storage battery and used for detecting the content of poisonous gas in the vehicle front cover. The digital potentiometer is electrically connected with the gas sensing unit and is configured to be capable of receiving and displaying toxic gas content data detected by the gas sensing unit; the microcontroller is electrically connected with the digital potentiometer and the alarm module, and the microcontroller can read the toxic gas content data received by the digital potentiometer and control the alarm module to give an alarm or stop giving an alarm. The gas sensing unit detects the content of poisonous gas in the front cover of the vehicle in real time, the content is displayed through the digital potentiometer, and the concentration condition of the poisonous gas in the front cover of the vehicle can be visually obtained; the microcontroller can control the alarm module to give an alarm so as to remind a driver in time, and the driving safety can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, specifically to a vehicle gas detection system and a vehicle. Background Technology

[0002] With the rapid development of the global automotive industry, gasoline vehicles have become one of the mainstream modes of transportation. When using gasoline vehicles, engine exhaust leaks are inevitable. These leaks not only pollute the environment but can also affect vehicle performance and driver safety. After a certain number of years of use, gasoline vehicles may experience engine exhaust leaks. The generation of toxic gases outside the exhaust pipe not only indicates a malfunction and affects the vehicle's normal operation but also negatively impacts the environment. Furthermore, it can pose serious safety risks to vehicle occupants. Current technology lacks a system for detecting toxic gases that may be generated inside the hood of gasoline vehicles. Therefore, a system is needed to detect toxic gases inside the hood, allowing drivers to monitor for engine exhaust leaks in real time, enabling timely repairs, reducing toxic gas leaks, and ensuring vehicle performance and passenger safety. Utility Model Content

[0003] This utility model provides a vehicle gas detection system and vehicle to solve the problem of difficulty in detecting toxic gas leaks inside the hood of gasoline vehicles in the prior art, so as to detect toxic gas leaks inside the hood of gasoline vehicles in a timely manner and ensure vehicle performance and the personal safety of vehicle occupants.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A vehicle gas detection system for detecting the content of toxic gases inside a vehicle's hood includes: a battery, a gas sensing unit, and a digital potentiometer. The battery is mounted inside the vehicle's hood and is used to power onboard electrical appliances. The gas sensing unit is electrically connected to the battery and is used to detect the content of toxic gases inside the vehicle's hood. The digital potentiometer is electrically connected to the gas sensing unit and is configured to receive and display the toxic gas content data detected by the gas sensing unit. A microcontroller and an alarm module are also included. The microcontroller is electrically connected to both the digital potentiometer and the alarm module, and is configured to read the toxic gas content data received by the digital potentiometer and control the alarm module to sound an alarm or deactivate the alarm.

[0006] Based on the above-mentioned technical means, the gas sensing unit can detect the content of toxic gas inside the vehicle hood in real time and display it through the digital potentiometer to intuitively obtain the concentration of toxic gas inside the vehicle hood; when the gas sensing unit detects toxic gas, the microcontroller can control the alarm module to sound an alarm to promptly remind the occupants, which is conducive to improving driving safety and ensuring the personal safety of vehicle occupants.

[0007] Meanwhile, this utility model has the ability to obtain the content of toxic gases in real time and provide early warning of toxic gases, which increases the intelligence level of the vehicle.

[0008] Furthermore, the gas sensing unit includes a constant potential circuit and a gas sensor. The constant potential circuit is electrically connected to the gas sensor and the battery respectively to ensure that the operating potential of the gas sensor is constant. The gas sensor is used to detect the content of toxic gas inside the vehicle hood, and the gas sensor is electrically connected to the digital potentiometer so that the digital potentiometer can receive and display the toxic gas content data detected by the gas sensor.

[0009] According to the above-mentioned technical means, the constant potential circuit enables the gas sensor to maintain a constant operating potential, which helps to ensure the stability and accuracy of the gas sensor; the digital potentiometer can display the content of toxic gas detected by the gas sensor in real time, which makes it convenient for users to check the content of toxic gas in the hood of the vehicle in real time, and has the feature of immediacy.

[0010] Furthermore, the gas sensing unit also includes a circuit switch, which is connected to the constant potential circuit and configured to control the on / off state of the constant potential circuit, thereby controlling the gas sensor to be powered on or off.

[0011] According to the above-mentioned technical means, the power supply to the gas sensor can be conveniently controlled by the circuit switch, allowing users to selectively turn the gas sensor on or off according to detection needs, thus increasing the flexibility of the vehicle gas detection system.

[0012] Furthermore, it also includes a user interface, which is communicatively connected to the microcontroller, and the circuit switch is controllably connected to the microcontroller. The user can send control commands to the microcontroller through the user interface to control the on / off state of the circuit switch.

[0013] Based on the above-mentioned technical means, users can remotely control the power supply or power-off of the gas sensor through the user interface, which enhances the controllability and intelligence of the vehicle gas detection system and improves the user experience.

[0014] Furthermore, the battery includes a battery cell pack and a battery management module, the battery cell pack and the battery management module are controlled to be connected, and the battery management module is communicatively connected to the gas sensing unit; the battery management module is configured to control the battery cell pack to stop discharging when the gas sensing unit detects that the concentration of toxic gas reaches a set value.

[0015] According to the above technical means, the battery management module works in conjunction with the gas sensing unit so that when the gas sensing unit detects toxic gas, the battery management module can respond quickly and control the battery cell group to stop discharging, thereby preventing the battery cell group from working in a toxic gas environment, increasing the lifespan of the battery cell group, and improving the reliability of the vehicle detection system.

[0016] Furthermore, the gas sensing unit also includes a judgment module, which is communicatively connected to the battery management module and is used to determine whether the concentration of toxic gas detected by the gas sensor has reached a set value.

[0017] Based on the above technical means, by comparing and judging the content of toxic gas detected by the gas sensor through the judgment module, the false alarms of the battery management module can be reduced, and the accuracy of the vehicle detection system can be improved.

[0018] Furthermore, the gas sensor is an electrochemical sensor with multiple readable pixels.

[0019] Based on the above-mentioned technical means, the electrochemical sensor with multiple readable pixels has the characteristics of high sensitivity, which can realize the detection of a variety of toxic gases, and improve the accuracy and comprehensiveness of gas detection.

[0020] Furthermore, the alarm module is a light alarm unit, which is installed on the vehicle's dashboard.

[0021] Based on the aforementioned technical means, the light alarm unit alerts the vehicle driver through intuitive visual signals, which can quickly attract the driver's attention and enable the driver to take quick countermeasures, thereby avoiding personal safety accidents and ensuring driving safety.

[0022] Furthermore, it also includes a storage module, which is communicatively connected to the microcontroller and is used to store data on the content of toxic gases detected by the gas sensing unit.

[0023] Based on the above technical means, the storage module can record the toxic gas content data detected by the gas sensing unit in real time, providing a reliable basis for data analysis and traceability for subsequent vehicle maintenance, and facilitating maintenance personnel to quickly troubleshoot and locate faults.

[0024] This utility model also provides a vehicle equipped with any of the above-described vehicle gas detection systems.

[0025] Based on the aforementioned technical means, the vehicle gas detection system enables drivers to promptly detect the presence of toxic gases inside the vehicle's hood, further ensuring vehicle safety during operation, increasing vehicle reliability, and preventing vehicle accidents and personal injury accidents involving passengers.

[0026] Beneficial effects:

[0027] 1. In the vehicle detection system of this utility model, the gas sensing unit can detect the content of toxic gases inside the vehicle hood in real time and display it through the digital potentiometer to intuitively obtain the concentration of toxic gases inside the vehicle hood; when the gas sensing unit detects toxic gases, the microcontroller can control the alarm module to sound an alarm, so as to remind the driver in time, which is conducive to improving driving safety and ensuring the personal safety of vehicle occupants; this utility model also has the ability to obtain the content of toxic gases in real time and provide early warning of toxic gases, which increases the intelligence level of the vehicle.

[0028] 2. The vehicle of this utility model is equipped with the above-mentioned vehicle gas detection system, which enables the driver to detect the presence of toxic gases in the vehicle hood in a timely manner, further ensuring the safety of the vehicle during driving, increasing the reliability of the vehicle, and avoiding vehicle safety accidents and personal safety accidents of passengers. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0030] Figure label:

[0031] 100. Storage battery; 110. Battery cell pack; 120. Battery management module; 200. Gas sensing unit; 210. Constant potential circuit; 220. Gas sensor; 230. Circuit switch; 240. Judgment module; 300. Digital potentiometer; 400. Microcontroller; 500. Alarm module; 600. User interface; 700. Storage module.

[0032] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation

[0033] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0034] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0035] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0036] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0037] like Figure 1 As shown, this embodiment provides a vehicle gas detection system for detecting the content of toxic gases inside the vehicle's hood. The system includes: a battery 100, a gas sensing unit 200, and a digital potentiometer 300. The battery 100 is mounted inside the vehicle's hood and is used to power onboard electrical appliances. The gas sensing unit 200 is electrically connected to the battery 100 and is used to detect the content of toxic gases inside the vehicle's hood. The digital potentiometer 300 is electrically connected to the gas sensing unit 200 and is configured to receive and display the toxic gas content data detected by the gas sensing unit 200. A microcontroller 400 and an alarm module 500 are also included. The microcontroller 400 is electrically connected to both the digital potentiometer 300 and the alarm module 500, and is configured to read the toxic gas content data received by the digital potentiometer 300 and control the alarm module 500 to sound an alarm or stop sounding an alarm.

[0038] When toxic gases, such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx), are produced under the vehicle hood, the gas sensing unit 200 can communicate with the microcontroller 400 when there is a certain concentration of toxic gas. The microcontroller 400 can then trigger the alarm module 500 to issue an alarm, reminding the driver that toxic gases have been produced under the vehicle hood.

[0039] In this embodiment, the gas sensing unit 200 can detect the content of toxic gas inside the vehicle hood in real time and display it through the digital potentiometer 300 to intuitively obtain the concentration of toxic gas inside the vehicle hood; when the gas sensing unit 200 detects toxic gas, the microcontroller 400 can control the alarm module 500 to sound an alarm, so as to remind the driver in time, which is conducive to improving driving safety and ensuring the personal safety of vehicle occupants.

[0040] Meanwhile, this utility model has the ability to obtain the content of toxic gases in real time and provide early warning of toxic gases, which increases the intelligence level of the vehicle.

[0041] like Figure 1 As shown, in this embodiment, the gas sensing unit 200 includes a constant potential circuit 210 and a gas sensor 220. The constant potential circuit 210 is electrically connected to the gas sensor 220 and the battery 100 to ensure the constant operating potential of the gas sensor 220. The gas sensor 220 is used to detect the content of toxic gases inside the vehicle's hood, and it is electrically connected to a digital potentiometer 300 so that the digital potentiometer 300 can receive and display the toxic gas content data detected by the gas sensor 220. The constant potential circuit 210 enables the gas sensor 220 to maintain a constant operating potential, which helps ensure the stability and accuracy of the gas sensor 220. The digital potentiometer 300 can display the toxic gas content detected by the gas sensor 220 in real time, allowing users to instantly check the toxic gas content status inside the vehicle's hood, providing real-time monitoring.

[0042] like Figure 1 As shown, in this embodiment, the gas sensing unit 200 further includes a circuit switch 230, which is connected to the constant potential circuit 210 and configured to control the on / off state of the constant potential circuit 210, thereby controlling the gas sensor 220 to be powered on or off. The circuit switch 230 allows for convenient control of the gas sensor 220's power supply, enabling users to selectively turn the gas sensor 220 on or off according to detection needs, increasing the flexibility of the vehicle gas detection system.

[0043] The circuit switch 230 can be manually operated by the user. When the vehicle is in an environment with a certain concentration of toxic gas, the gas sensor 220 may detect the toxic gas and trigger the alarm unit. In this case, the user can manually operate the circuit switch 230 to turn off the gas sensor 220, drive the vehicle to a safe environment free of toxic gas, and then manually turn the gas sensor 220 back on to detect whether toxic gas is generated inside the vehicle's hood. If the alarm unit still sounds in a safe environment free of toxic gas, it indicates that toxic gas has been generated inside the car's hood, and the parts inside the hood need repair.

[0044] like Figure 1 As shown, this embodiment also includes a user interface 600, which is communicatively connected to the microcontroller 400. The circuit switch 230 is also controllably connected to the microcontroller 400. The user can send control commands to the microcontroller 400 through the user interface 600 to control the on / off state of the circuit switch 230. The user can remotely control the power supply to the gas sensor 220 through the user interface 600, enhancing the controllability and intelligence of the vehicle gas detection system and improving the user experience.

[0045] like Figure 1 As shown, in this embodiment, the battery 100 includes a battery cell pack 110 and a battery management module 120. The battery cell pack 110 and the battery management module 120 are controllably connected, and the battery management module 120 is communicatively connected to the gas sensing unit 200. The battery management module 120 is configured to control the battery cell pack 110 to stop discharging when the gas sensing unit 200 detects that the concentration of toxic gas has reached a set value. The battery management module 120 cooperates with the gas sensing unit 200, enabling the battery management module 120 to respond quickly when the gas sensing unit 200 detects toxic gas, controlling the battery cell pack 110 to stop discharging. This prevents the battery cell pack 110 from operating in a toxic gas environment, increases the lifespan of the battery cell pack 110, and improves the reliability of the vehicle detection system. It is worth noting that when the battery cell pack 110 stops discharging, it does not affect the normal operation of the vehicle.

[0046] like Figure 1 As shown, in this embodiment, the gas sensing unit 200 further includes a judgment module 240, which is communicatively connected to the battery management module 120. The judgment module 240 is used to determine whether the concentration of toxic gas detected by the gas sensor 220 reaches a set value. By comparing and judging the toxic gas content detected by the gas sensor 220 through the judgment module 240, false alarms from the battery management module 120 can be reduced, improving the accuracy of the vehicle detection system.

[0047] like Figure 1As shown, in this embodiment, the gas sensor 220 is an electrochemical sensor with multiple readable pixels. Electrochemical sensors with multiple readable pixels are characterized by high sensitivity, enabling the detection of various toxic gases and improving the accuracy and comprehensiveness of gas detection. As an electrochemical sensor, when there is a sufficient amount of toxic gas inside the car hood, the electrochemical sensor can react and display the toxic gas content information on the digital potentiometer 300, while simultaneously transmitting the toxic gas content information to the microcontroller 400.

[0048] Electrochemical sensors operate by reacting with toxic gases to generate an electrical signal proportional to the gas concentration. They consist of a sensing electrode (or working electrode) and a counter electrode, separated by a thin electrolytic layer. The sensor also incorporates a hydrophobic barrier and an electrolyte. In the electrochemical sensor, the toxic gas first reacts with the sensor through tiny capillary openings, then through the hydrophobic barrier layer, and finally reaches the surface of the sensing electrode. This method allows a sufficient amount of gas to react with the sensing electrode to form a adequate electrical signal while preventing electrolyte leakage. The toxic gas diffuses through the thin electrolytic layer and reacts with the sensing electrode, which can employ either an oxidation or reduction mechanism. These reactions are catalyzed by electrode materials specifically designed for toxic gases.

[0049] like Figure 1 As shown, in this embodiment, the alarm module 500 is a light alarm unit, which is installed on the vehicle's dashboard. The light alarm unit alerts the driver through intuitive visual signals, quickly attracting the driver's attention and enabling the driver to take prompt action to avoid personal injury accidents and ensure driving safety.

[0050] like Figure 1 As shown, this embodiment also includes a storage module 700, which is communicatively connected to the microcontroller 400 and used to store data on the content of toxic gases detected by the gas sensing unit 200. The storage module 700 can record the data on the content of toxic gases detected by the gas sensing unit 200 in real time, providing a reliable basis for data analysis and traceability in subsequent vehicle maintenance, and facilitating maintenance personnel to quickly troubleshoot and locate faults.

[0051] This embodiment also provides a vehicle equipped with any of the vehicle gas detection systems described above. Equipping the vehicle gas detection system enables the driver to promptly detect the presence of toxic gases inside the vehicle's hood, further ensuring vehicle safety during operation, increasing vehicle reliability, and preventing vehicle accidents and occupant injuries.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vehicle gas detection system for detecting the content of toxic gases inside the hood of a vehicle, characterized in that, include: The vehicle includes a battery (100), a gas sensing unit (200), and a digital potentiometer (300). The battery (100) is mounted inside the vehicle hood and is used to power the vehicle's electrical appliances. The gas sensing unit (200) is electrically connected to the battery (100) and is used to detect the content of toxic gases inside the vehicle hood. The digital potentiometer (300) is electrically connected to the gas sensing unit (200) and is configured to receive and display the toxic gas content data detected by the gas sensing unit (200). The microcontroller (400) and the alarm module (500) are electrically connected to the digital potentiometer (300) and the alarm module (500), respectively. The microcontroller (400) is configured to read the toxic gas content data received by the digital potentiometer (300) and control the alarm module (500) to alarm or stop alarming.

2. The vehicle gas detection system according to claim 1, characterized in that, The gas sensing unit (200) includes a constant potential circuit (210) and a gas sensor (220). The constant potential circuit (210) is electrically connected to the gas sensor (220) and the battery (100) to ensure that the working potential of the gas sensor (220) is constant. The gas sensor (220) is used to detect the content of toxic gas in the hood of the vehicle, and the gas sensor (220) is electrically connected to the digital potentiometer (300) so that the digital potentiometer (300) can receive and display the toxic gas content data detected by the gas sensor (220).

3. The vehicle gas detection system according to claim 2, characterized in that, The gas sensing unit (200) also includes a circuit switch (230), which is connected to the constant potential circuit (210) and is configured to control the on / off state of the constant potential circuit (210), thereby further controlling the gas sensor (220) to be powered on or off.

4. The vehicle gas detection system according to claim 3, characterized in that, It also includes a user interface (600) that is communicatively connected to the microcontroller (400), and a circuit switch (230) that is controllably connected to the microcontroller (400). The user can send control commands to the microcontroller (400) through the user interface (600) to control the on / off state of the circuit switch (230).

5. A vehicle gas detection system according to claim 2, characterized in that, The battery (100) includes a battery cell group (110) and a battery management module (120). The battery cell group (110) and the battery management module (120) are controlled to be connected, and the battery management module (120) is communicatively connected to the gas sensing unit (200). The battery management module (120) is configured to control the battery cell group (110) to stop discharging when the gas sensing unit (200) detects that the concentration of toxic gas has reached a set value.

6. A vehicle gas detection system according to claim 5, characterized in that, The gas sensing unit (200) further includes a judgment module (240), which is communicatively connected to the battery management module (120) and is used to determine whether the concentration of toxic gas detected by the gas sensor (220) has reached a set value.

7. A vehicle gas detection system according to claim 2, characterized in that, The gas sensor (220) is an electrochemical sensor with multiple readable pixels.

8. A vehicle gas detection system according to claim 1, characterized in that, The alarm module (500) is a light alarm unit, which is installed on the vehicle's dashboard.

9. A vehicle gas detection system according to claim 1, characterized in that, It also includes a storage module (700), which is communicatively connected to the microcontroller (400) and is used to store data information on the content of toxic gases detected by the gas sensing unit (200).

10. A vehicle, characterized in that, Equipped with a vehicle gas detection system as described in any one of claims 1-9.