Fuse detection system and method for intelligent driving training vehicle

Abstract

The invention discloses a fuse detection system and method for an intelligent driving training vehicle, and the system comprises a central main control module, a vehicle signal collection module, a storage battery voltage detection module and a terminal module, and the central main control module is connected with a vehicle CAN bus; the vehicle signal collecting module collects the vehicle speed, the engine rotating speed and the ignition key state in real time. The terminal module comprises a vehicle-mounted terminal and a remote control center, and the terminal module communicates with the central main control module by being connected with the network communication module; wherein the central main control module executes the following steps: (a) when an ignition key is in an ON state and the vehicle speed is greater than 5km / h, monitoring the voltage of a storage battery; (b) if the voltage of the storage battery is continuously lower than the threshold value for a preset time, judging that the charging fuse is damaged; (c) sending a fuse fault alarm and a safety control instruction to the terminal module; the defect that whether the fuse is damaged or not needs to be manually measured and observed is overcome, and normal power supply of the intelligent control system is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of intelligent driving technology, and in particular to a fuse detection system and method for an intelligent driving training vehicle. Background Art

[0002] Compared with traditional vehicles, smart driving test and training vehicles are equipped with an intelligent control system to ensure the safety of students learning to drive. The core of this system is its power supply part. Stable power supply is the primary condition for the normal operation of the system and the prerequisite for safe driving practice. It can always provide sufficient protection during the driving practice process.

[0003] The intelligent control systems of some current smart driving training vehicles have built-in batteries connected to the front battery via wires. After the vehicle starts, the generator charges the front battery, which in turn charges the battery. A fuse is connected in between for overcurrent protection. The battery can provide short-term power. When the power is low, the front battery can be used to charge. If the charging fuse is damaged and the charging circuit is disconnected, the battery will not be able to be recharged for an extended period of time, causing the intelligent control system to malfunction and the student's driving skills to be unsafe. Current fuse detection in smart driving training vehicles has three major flaws: Passive detection: Relies on manual periodic measurement and cannot detect the blowing of the charging fuse in real time; Poor fault correlation: Without considering the vehicle's operating status (such as speed / ignition status), it is easy to misjudge the voltage drop caused by battery aging; Lack of safety response: When a fuse is damaged and the intelligent control system loses power, there is no active safety protection mechanism (such as speed limiting / braking).

[0004] Therefore, there is an urgent need for a voltage monitoring solution for intelligent driving training vehicles, and to solve the problem of real-time diagnosis and safety control linkage during driving. Summary of the Invention

[0005] In order to solve the above problems, the present application provides a fuse detection system and method for an intelligent driving training vehicle, which overcomes the defect of requiring manual measurement to observe whether the fuse is damaged and ensures normal power supply of the intelligent control system. The technical solution is as follows: The first aspect of the present application provides a fuse detection system for an intelligent driving training vehicle, comprising a central main control module, a vehicle signal acquisition module, a battery voltage detection module and a terminal module, wherein the central main control module is connected to the vehicle CAN bus; the vehicle signal acquisition module collects vehicle speed, engine speed and ignition key status in real time; the terminal module comprises an on-board terminal and a remote control center, and the terminal module communicates with the central main control module by connecting to a network communication module; wherein the central main control module performs: (a) monitoring the battery voltage when the ignition key is in the ON state and the vehicle speed is greater than 5 km / h; (b) if the battery voltage is continuously lower than the threshold for a preset time, determining that the charging fuse is damaged; and (c) sending a fuse fault alarm and safety control instructions to the terminal module.

[0006] For example, in the fuse detection system for the intelligent driving training vehicle provided in one embodiment, the safety control instructions include: activating the electronic parking system; limiting the engine speed to ≤2000rpm; and triggering the vehicle terminal sound and light alarm.

[0007] For example, in the fuse detection system for the smart driving training vehicle provided in one embodiment, the remote control center of the terminal module receives fault information through the 4G / 5G network and pushes a maintenance work order containing the vehicle ID to the maintenance personnel's mobile terminal.

[0008] For example, in the fuse detection system for the smart driving training vehicle provided in one embodiment, an ultrasonic radar is also included. When the fuse is determined to be damaged and the distance to the obstacle ahead is detected to be less than 3m, the central main control module triggers emergency braking.

[0009] For example, in the fuse detection system for the intelligent driving training vehicle provided in one embodiment, the sampling frequency of the battery voltage detection module is 1 Hz, and the data is transmitted to the central main control module via the CAN bus.

[0010] For example, in the fuse detection system for the smart driving training vehicle provided in one embodiment, after determining that the fuse is damaged, the central main control module continuously records the GPS location when the fault occurs and uploads it to the cloud server.

[0011] For example, in the fuse detection system for the smart driving training vehicle provided in one embodiment, the vehicle terminal alarm mode is: red LED flashes (frequency 2Hz); voice broadcast "fuse failure, please repair immediately".

[0012] For example, in the fuse detection system for the intelligent driving training vehicle provided in one embodiment, the vehicle signal acquisition module obtains the vehicle speed and ignition status through the OBD-II interface.

[0013] For example, in the fuse detection system for the intelligent driving training vehicle provided in one embodiment, if the battery voltage is continuously less than 12.5V for 10 minutes, it is determined that the charging fuse is damaged.

[0014] The second aspect of the present application provides a fuse detection for an intelligent driving training vehicle, comprising the following steps: Step 1: obtaining vehicle speed > 5 km / h and ignition ON status in real time through the OBD-II interface; Step 2: collecting battery voltage at a frequency of 1 Hz; Step 3: if the voltage is < 12.5 V for 10 minutes, determining that the fuse is damaged; Step 4: triggering the engine speed limit ≤ 2000 rpm and pushing a maintenance work order.

[0015] The beneficial effects of a fuse detection system and method for an intelligent driving training vehicle provided by some embodiments of the present application are as follows: (1) Fault detection accuracy: Combined with vehicle speed > 5 km / h and ignition ON state trigger monitoring, it avoids misjudgment when parking and improves accuracy.

[0016] (2) Safety control time limit: The electronic parking brake and speed limit are triggered within 200ms after the fault is determined to prevent accidents caused by trainees’ misoperation.

[0017] (3) Operation and maintenance efficiency: The remote terminal automatically pushes maintenance work orders, and the response time for fuse replacement is shortened from 48 hours to 2 hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. 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 paying any creative work.

[0019] Figure 1 This is an architecture diagram of the fuse detection system for the smart driving training vehicle of this application. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] The first aspect of the present application provides a fuse detection system for an intelligent driving training vehicle, such as Figure 1 As shown, it includes a central main control module, a vehicle signal acquisition module, a battery voltage detection module and a terminal module.

[0022] The central main control module is connected to the vehicle CAN bus; The vehicle signal acquisition module collects vehicle speed, engine speed and ignition key status in real time, and periodically uploads the vehicle operation information to the central main control module; Battery voltage detection module; The terminal module includes an on-board terminal and a remote control center. The terminal module communicates with the central control module through the network communication module. The terminal module can control the central control module to execute corresponding commands. The central control module will also periodically upload vehicle operation information and information about the distance to obstacles around the vehicle to the terminal module. Among them, the central control module executes: When the ignition key is on and the vehicle speed is > 5 km / h, monitor the battery voltage; If the battery voltage remains below the threshold for a preset time, the charging fuse is determined to be damaged; (c) Send fuse failure alarm and safety control instructions to the terminal module.

[0023] The fuse detection system for the intelligent driving training vehicle of the present application has a central main control module that collects the vehicle operation information and the current battery voltage uploaded by the vehicle signal acquisition module, performs insurance detection algorithm judgment, and sends the result to the instruction control terminal module.

[0024] Specifically, the central control module detects the current vehicle speed and key status, combined with the current battery voltage. Using a built-in fuse detection algorithm, it determines the fuse is damaged if the battery voltage remains below a threshold for an extended period. If the battery voltage remains above the threshold for an extended period, the fuse is considered normal. The terminal module provides real-time feedback on the fuse status, reminding the user to replace the fuse promptly.

[0025] Based on the above embodiments, this application can accurately identify fuse faults during driving, avoiding misjudgments. Regarding current smart driving test and training vehicles, if a student is nervous, misoperating, or distracted during the second subject practice and test, and the control system power supply fails to function due to abnormalities, this application provides protection. When the vehicle encounters an obstacle while driving, the system can brake in time to ensure the student's safe driving.

[0026] For example, in one embodiment of the fuse detection system for a smart driving training vehicle, the safety control instructions include: activating the electronic parking system; limiting the engine speed to ≤ 2000 rpm; and triggering an audible and visual alarm on the vehicle terminal. By forcing the vehicle to slow down and park, the trainee is prevented from panicking.

[0027] For example, in one embodiment of the fuse detection system for a smart driving training vehicle, the terminal module's remote control center receives fault information via a 4G / 5G network and pushes a repair work order containing the vehicle ID to the maintenance personnel's mobile terminal. The repair work order includes the vehicle's VIN number, fault time, and a GPS location map link, enabling rapid location and repair scheduling of the faulty vehicle. Maintenance personnel can navigate to the faulty vehicle with a single click.

[0028] For example, in one embodiment, the fuse detection system for a smart driving training vehicle also includes an ultrasonic radar. When a fuse is detected as damaged and an obstacle ahead is less than 3 meters away, the central control module triggers emergency braking. This integration of obstacle detection provides dual collision avoidance protection.

[0029] For example, in the fuse detection system for a smart driving training vehicle provided in one embodiment, the sampling frequency of the battery voltage detection module is 1 Hz, and the data is transmitted to the central main control module via the CAN bus, ensuring the real-time voltage data and meeting the driving conditions.

[0030] For example, in one embodiment of the fuse detection system for a smart driving training vehicle, after determining that a fuse is damaged, the central control module continuously records the GPS location at the time of the fault and uploads it to a cloud server, supporting accident tracing and fuse failure heat map analysis.

[0031] For example, in the fuse detection system for the smart driving training vehicle provided in one embodiment, the vehicle terminal provides an alarm in the following ways: a red LED flashes (at a frequency of 2 Hz); a voice broadcast announces "fuse fault, please repair immediately." This multi-modal system prompts the trainee to take timely action.

[0032] For example, in the fuse detection system for the smart driving training vehicle provided in one embodiment, the vehicle signal acquisition module obtains vehicle speed and ignition status through the OBD-II interface. This is compatible with existing vehicle interfaces and does not require vehicle modification.

[0033] For example, in the fuse detection system for the intelligent driving training vehicle provided in one embodiment, if the battery voltage is continuously less than 12.5V for 10 minutes, it is determined that the charging fuse is damaged.

[0034] A second aspect of the present application provides a fuse detection method for an intelligent driving training vehicle, comprising the following steps: Step 1: Obtain vehicle speed > 5km / h and ignition ON status in real time through the OBD-II interface; Step 2: Collect battery voltage at 1 Hz frequency; Step 3: If the voltage is less than 12.5V for 10 minutes, the fuse is considered damaged. Step 4: Trigger the engine speed limit to ≤2000rpm and push a maintenance work order.

[0035] The fuse detection method for smart driving training vehicles in this application realizes full-process automated diagnosis and reduces manual intervention. It solves the problem that when the power supply of the intelligent control system is abnormal and cannot function, it is not handled in time, resulting in a car crash caused by students due to excessive speed, misoperation, lack of control, and distraction during driving. This application overcomes the defect of manual measurement to observe whether the fuse is damaged, and has the characteristics of simple operation, high efficiency, and accurate detection, which greatly improves the safety of students practicing driving. This application obtains information such as battery voltage, vehicle speed, and ignition status, uses a built-in detection algorithm to determine whether the fuse is damaged, and finally uses human-computer interaction to notify the user whether the fuse needs to be replaced, ensuring that the power supply of the intelligent control system is always normal, ensuring that it can function when students are driving due to misoperation or distraction, and avoiding traffic accidents.

[0036] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fuse detection system for an intelligent driving training vehicle, characterized in that: include: Central main control module, connected to the vehicle CAN bus; Vehicle signal acquisition module, real-time acquisition of vehicle speed, engine speed and ignition key status; Battery voltage detection module; The terminal module includes the vehicle terminal and the remote control center. The terminal module communicates with the central main control module through the network communication module; Among them, the central control module executes: (a) When the ignition key is on and the vehicle speed is greater than 5 km / h, monitor the battery voltage; (b) If the battery voltage remains below the threshold for a predetermined period of time, the charging fuse is deemed damaged; (c) Send fuse failure alarm and safety control instructions to the terminal module.

2. The fuse detection system for the intelligent driving training vehicle according to claim 1, characterized in that: The security control instructions include: Activate the electronic parking system; Limit engine speed to ≤2000rpm; Trigger the sound and light alarm on the vehicle terminal.

3. The fuse detection system for the intelligent driving training vehicle according to claim 1, characterized in that: The remote control center of the terminal module receives fault information through the 4G / 5G network and pushes a maintenance work order containing the vehicle ID to the maintenance personnel's mobile terminal.

4. The fuse detection system for the intelligent driving training vehicle according to claim 1, characterized in that: It also includes ultrasonic radar. When the fuse is determined to be damaged and the distance of the obstacle ahead is detected to be less than 3m, the central main control module triggers emergency braking.

5. The fuse detection system for the intelligent driving training vehicle according to claim 1, characterized in that: The sampling frequency of the battery voltage detection module is 1 Hz, and the data is transmitted to the central main control module via the CAN bus.

6. The fuse detection system for the intelligent driving training vehicle according to claim 1, characterized in that: After determining that the fuse is damaged, the central control module continuously records the GPS location when the fault occurs and uploads it to the cloud server.

7. The test method for the fuse detection system of the intelligent driving training vehicle according to claim 1, characterized in that: The vehicle terminal alarm mode is: Red LED flashes (frequency 2Hz); The voice broadcast says "Fuse failure, please repair immediately".

8. The test method for the fuse detection system of the intelligent driving training vehicle according to claim 1, characterized in that: The vehicle signal acquisition module obtains vehicle speed and ignition status through the OBD-II interface.

9. The test method for the fuse detection system of the intelligent driving training vehicle according to claim 1, characterized in that: If the battery voltage remains below 12.5V for 10 minutes, the charging fuse is considered damaged.

10. A detection method for a fuse detection system for an intelligent driving training vehicle based on any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Obtain vehicle speed > 5km / h and ignition ON status in real time through the OBD-II interface; Step 2: Collect battery voltage at 1 Hz frequency; Step 3: If the voltage is less than 12.5V for 10 minutes, the fuse is considered damaged. Step 4: Trigger the engine speed limit to ≤2000rpm and push a maintenance work order.

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