A method, system, vehicle and storage medium for monitoring and preventing damage to rear-end vehicles

Abstract

The present invention relates to the technical field of automobile early warning, and in particular to a method, system, automobile and storage medium for monitoring and preventing damage to automobile rear-end collision. The method is applied to the automobile rear-end collision monitoring and preventing damage system, the system includes a vehicle processor, and the method includes: real-time monitoring of the acceleration and throttle status of the automobile, when the acceleration and throttle status do not correspond and fall into the threshold of the rear-end collision state, confirming that the automobile has entered the rear-end collision state, and starting the emergency damage prevention mechanism; in the emergency damage prevention mechanism, monitoring whether the automobile transmission is in the parking gear and releasing the parking gear transmission locking mechanism; controlling the brake to fully brake until the rear-end collision state stops. The present invention uses the existing acceleration sensor in the automobile to accurately judge whether a rear-end collision occurs through the acceleration and throttle status of the automobile, and performs emergency braking of the entire vehicle before the driver after the rear-end collision occurs, and unhooks the fixed hook of the P gear as soon as possible to prevent permanent damage to the transmission. The implementation cost is low and the reliability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile early warning, and in particular to an automobile rear-end collision monitoring and anti-damage method, system, automobile and storage medium. Background Art

[0002] With the development of the automobile industry, users are gradually paying attention to the safety of vehicles. In addition to personal safety, how to reduce the damage to the car in minor accidents has also become a research issue in the current industry. In the existing on-board driving assistance system, a collision system is usually set up to ensure user safety, such as conventional seat belts, airbags, and some high-precision sensors such as cameras and radars to detect whether there are obstacles approaching at high speed behind the vehicle. Once an obstacle is detected, a prompt will be issued to warn the driver to achieve safety protection.

[0003] While ensuring the safety of users, the vehicle does not receive the necessary protection when it is rear-ended. For example, the parking gear of the existing gearbox, that is, the P gear, is generally a locking gear. When the driver shifts to the P gear, a ratchet is provided inside the gearbox to buckle the gear on the output shaft to form a mechanical lock, and the wheels are generally fixed and will not slip. When a car is rear-ended, the risk of rear-end collision from behind cannot be fully addressed. For example, when the vehicle gear is in the P gear and a rear-end collision occurs from behind, a strong external force forces the wheels to rotate. In extreme cases, the locking mechanism of the gearbox will be damaged, which may cause permanent damage to the gearbox, thereby extending the vehicle's maintenance cycle and affecting the owner's driving experience. Summary of the invention

[0004] The present invention aims to solve the technical problem that a rear-end collision occurs when a car is in the P gear, which easily causes permanent damage to the car gearbox. A method, system, car and storage medium for monitoring and preventing damage to the rear-end collision of the car are provided.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A method for preventing damage to a rear-end collision monitoring vehicle is applied to a rear-end collision monitoring and preventing damage system for a rear-end collision monitoring vehicle. The system includes a vehicle processor. The method includes:

[0007] Real-time monitoring of the acceleration and throttle status of the car. When the acceleration and throttle status do not correspond and fall within the rear-end collision threshold, it is confirmed that the car has entered the rear-end collision state and the emergency damage prevention mechanism is activated.

[0008] In the emergency damage prevention mechanism, monitor whether the vehicle transmission is in the parking gear and release the parking gear transmission locking mechanism;

[0009] Apply the brakes with full force until the vehicle comes to a stop after being rear-ended.

[0010] Furthermore, the method further comprises:

[0011] Determine whether the rear-end collision state has stopped;

[0012] If so, release the brake and apply the handbrake;

[0013] If not, keep the brakes at full force.

[0014] Furthermore, the real-time monitoring of the acceleration and throttle status of the automobile, when the acceleration and throttle status do not correspond and fall within the rear-end collision state threshold, confirming that the rear-end collision state has been entered includes:

[0015] Get the real-time acceleration of the car through the acceleration sensor and obtain the real-time throttle status of the car;

[0016] Compare the real-time acceleration of the vehicle with the preset acceleration corresponding to the throttle state of the vehicle;

[0017] If the difference between the real-time acceleration and the preset acceleration is greater than the preset threshold, it is determined that the car is in a rear-end collision state.

[0018] Furthermore, the vehicle processor collects the real-time acceleration of the vehicle through the acceleration sensor inside the GPS module.

[0019] Furthermore, the initiation of the emergency damage prevention mechanism includes:

[0020] The vehicle computer processor receives the warning information of the vehicle being rear-ended;

[0021] Activate the interruption mechanism of the emergency damage prevention mechanism and start the emergency warning plan of the emergency damage prevention mechanism.

[0022] Further, the monitoring of whether the automobile transmission is in the parking gear and releasing the parking gear transmission locking mechanism includes:

[0023] Determine whether the car's transmission is in the parking gear;

[0024] If so, release the gearbox locking mechanism and proceed to the next process;

[0025] If not, go directly to the next process.

[0026] The present invention also provides a vehicle rear-end collision monitoring and anti-damage system, comprising a vehicle computer processor, a throttle status monitoring module, an acceleration sensor, a brake control module and a transmission control module; the vehicle computer processor is communicatively connected with the throttle status monitoring module and the acceleration sensor to obtain the acceleration and throttle status of the vehicle in real time; the vehicle computer processor is control-connected with the brake control module and the transmission control module of the vehicle; the system executes the above-mentioned vehicle rear-end collision monitoring and anti-damage method through the vehicle computer processor.

[0027] Furthermore, the system also includes a CAN communication module, and the vehicle processor is controlled and connected to the brake control module and the transmission control module of the vehicle through the CAN communication module.

[0028] The present invention also provides an automobile, comprising the above-mentioned automobile rear-end collision monitoring and anti-damage system.

[0029] The present invention also provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned vehicle rear-end collision monitoring and anti-damage method is implemented.

[0030] The present invention utilizes the existing acceleration sensor in the automobile to accurately determine whether a rear-end collision occurs through the acceleration and throttle status of the automobile, and performs emergency braking of the entire vehicle before the driver after the rear-end collision occurs, and releases the fixed hook of the P gear as soon as possible to prevent permanent damage to the gearbox. The implementation cost is low and the reliability is high, and it can prevent users from suffering greater economic losses to the greatest extent when an emergency rear-end collision is detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The structure flow chart of the vehicle rear-end collision monitoring and anti-damage method in an embodiment of the present invention.

[0032] Figure 2 The figure is a structural flow chart of judging the rear-end collision state of a vehicle in an embodiment of the present invention.

[0033] Figure 3 The figure is a flow chart of the mechanism of the automobile emergency damage prevention mechanism in the embodiment of the present invention.

[0034] Figure 4 1 is a structural block diagram of a vehicle rear-end collision monitoring and anti-damage system in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The same or similar numbers in the drawings of the embodiments of the present application correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside", etc. indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0037] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0038] Embodiment 1

[0039] Figure 1 The structural flow chart of the vehicle rear-end collision monitoring and anti-damage method in this embodiment is shown; Figure 2 A structural flow chart of rear-end collision state judgment in this embodiment is shown; Figure 3 The flowchart of the mechanism of the emergency damage prevention mechanism in this embodiment is shown.

[0040] See also Figure 1-3 The present embodiment provides a method for monitoring and preventing damage to a rear-end collision of an automobile. The method is mainly used to solve the technical problem of preventing damage to the automobile gearbox due to the locking state of the automobile gearbox when the automobile is rear-ended. The method detects whether the automobile is rear-ended through the relationship between the acceleration and the throttle state of the automobile, and enters an emergency state accordingly. When the automobile is in the gearbox locking state, the locking state is contacted and the brake is fully applied, thereby effectively avoiding the situation in which when the vehicle gear is in the parking gear and a rear-end collision occurs from behind, the strong external force forces the wheels to rotate, which may damage the locking mechanism of the gearbox in extreme cases, and may cause permanent damage to the gearbox.

[0041] Specifically, the vehicle rear-end collision monitoring and anti-damage method in this embodiment is applied to a vehicle rear-end collision monitoring and anti-damage system, which includes a vehicle computer processor, which is used to realize information communication collection in the vehicle, and directly or indirectly control the vehicle gearbox and brake to perform corresponding actions after calculating and processing the data. For more details, please refer to Figure 1 , the method of this embodiment includes the following steps:

[0042] 101. Monitor the acceleration and throttle status of the car in real time. When the acceleration and throttle status do not correspond and fall into the rear-end collision threshold, confirm that the car has entered the rear-end collision state and activate the emergency damage prevention mechanism.

[0043] 102. In the emergency damage prevention mechanism, monitor whether the vehicle transmission is in the parking gear and release the parking gear transmission locking mechanism.

[0044] 103. Apply the brakes with full force until the vehicle is rear-ended and stops.

[0045] Among them, since there is a certain correspondence between the acceleration and throttle status of the car during driving, when there is a large difference between the two, it can be determined that the car is currently in an abnormal state, such as a collision or rear-end collision. If the car is in P gear at this time, it can be confirmed that the car is in a rear-end collision state. The emergency damage prevention mechanism is mainly used to prevent the car's gearbox from being permanently damaged and then scrapped when the car is rear-ended, aiming to reduce the user's economic losses.

[0046] In specific applications, the vehicle processor continuously polls the acceleration sensor and obtains the current acceleration and throttle status through the CAN bus, and compares these two states with the passing to determine whether the current vehicle is rear-ended, thereby deciding whether it is necessary to notify the driving electronic control unit to perform emergency protection actions. Figure 2 As shown, once the vehicle is turned on, the polling process will continue to run in the background of the vehicle processor.

[0047] Of course, in some embodiments, the anti-damage method further includes the following steps:

[0048] Determine whether the rear-end collision state has stopped;

[0049] If so, release the brake and apply the handbrake;

[0050] If not, keep the brakes at full force.

[0051] Among them, whether the rear-end collision state has stopped can still be determined by the above-mentioned rear-end collision state determination method. Of course, after determining that a rear-end collision has occurred, whether the rear-end collision state has ended can also be determined by other methods, such as determining whether the car has moved. If the car is already in a stationary state, it can be determined that the rear-end collision state has ended.

[0052] In some specific embodiments, the real-time monitoring of the acceleration and throttle status of the automobile, when the acceleration and throttle status do not correspond and fall within the rear-end collision state threshold, confirming that the vehicle has entered the rear-end collision state includes:

[0053] Get the real-time acceleration of the car through the acceleration sensor and obtain the real-time throttle status of the car;

[0054] Compare the real-time acceleration of the vehicle with the preset acceleration corresponding to the throttle state of the vehicle;

[0055] If the difference between the real-time acceleration and the preset acceleration is greater than the preset threshold, it is determined that the car is in a rear-end collision state.

[0056] Among them, the comparison of acceleration and throttle status in this embodiment can also be achieved by looking up a table. For example, the corresponding relationship between acceleration and throttle status is pre-installed in the vehicle processor. When a rear-end collision occurs, the preset table is queried to confirm whether the two correspond, and then the vehicle status is confirmed.

[0057] More specifically, in this embodiment, the vehicle processor collects the real-time acceleration of the vehicle through the acceleration sensor inside the GPS module. The GPS module is responsible for searching for satellite information in the area of ​​the vehicle to locate the entire vehicle. Since the GPS signal is discontinuous, there are usually acceleration sensors and gyroscope sensors inside the GPS module. Therefore, acceleration polling can be achieved through the acceleration sensor inside the GPS module. Of course, if there is no acceleration sensor integrated inside the GPS module, acceleration sensors in other parts of the vehicle can be used.

[0058] See also Figure 3 The steps in this embodiment to start the emergency anti-damage mechanism specifically include the following steps:

[0059] The vehicle computer processor receives the warning information of the vehicle being rear-ended;

[0060] Activate the interruption mechanism of the emergency damage prevention mechanism and start the emergency warning plan of the emergency damage prevention mechanism.

[0061] Among them, when the driving electronic control unit, that is, the braking control module and the transmission control module of the car receive the warning information from the vehicle processor, a software interrupt mechanism will be established to ensure that the driving electronic control unit quickly switches to running the software algorithm of the rear-end collision warning system. By changing the above steps, this solution can implement the rear-end collision prevention damage method without additional hardware cost.

[0062] In some embodiments, the steps in this embodiment to monitor whether the vehicle transmission is in the parking gear and release the parking gear transmission locking mechanism specifically include:

[0063] Determine whether the car's transmission is in the parking gear;

[0064] If so, release the gearbox locking mechanism and proceed to the next process;

[0065] If not, go directly to the next process.

[0066] Among them, in this step, after receiving the early warning information, the gearbox releases the locking mechanism of the gearbox to prevent the gearbox from being permanently damaged by the locking mechanism when the car is hit by the car behind.

[0067] The advantage of this embodiment is that this method utilizes the existing acceleration sensor in the car to accurately determine whether a rear-end collision occurs through the car acceleration and throttle status, and performs emergency braking of the entire vehicle before the driver after the rear-end collision occurs, and releases the fixed hook of the P gear as soon as possible to prevent permanent damage to the gearbox. It has low implementation cost and high reliability, and can prevent users from suffering greater economic losses to the greatest extent when an emergency rear-end collision is sent.

[0068] Embodiment 2

[0069] The present embodiment provides a system for monitoring and preventing damage to a car in a rear-end collision. Specifically, the system includes a vehicle processor, a throttle status monitoring module, an acceleration sensor, a brake control module, and a transmission control module. The vehicle processor is communicatively connected to the throttle status monitoring module and the acceleration sensor, and the vehicle processor obtains the acceleration and throttle status of the car in real time through the throttle status monitoring module and the acceleration sensor. At the same time, the vehicle processor is directly or indirectly connected to the brake control module and the transmission control module of the car. It can directly take over the control, or it can send warning information through the CAN communication module to control the full braking and transmission unlocking of the car. Specifically, the system executes a method for monitoring and preventing damage to a car in a rear-end collision through the above-mentioned vehicle processor to prevent the problem of permanent damage to the transmission when the car is rear-ended. The method for monitoring and preventing damage to a car in a rear-end collision includes the following steps:

[0070] Real-time monitoring of the acceleration and throttle status of the car. When the acceleration and throttle status do not correspond and fall within the rear-end collision threshold, it is confirmed that the car has entered the rear-end collision state and the emergency damage prevention mechanism is activated.

[0071] In the emergency damage prevention mechanism, monitor whether the vehicle transmission is in the parking gear and release the parking gear transmission locking mechanism;

[0072] Apply the brakes with full force until the vehicle comes to a stop after being rear-ended.

[0073] Specifically, the automobile rear-end collision monitoring and damage prevention system in this embodiment specifically adopts the automobile rear-end collision monitoring and damage prevention method of the first embodiment.

[0074] As a preference of this embodiment, the anti-damage system in this embodiment further includes a CAN communication module. Specifically, the vehicle processor is controlled and connected to the brake control module and the transmission control module of the vehicle through the CAN communication module.

[0075] Embodiment 3

[0076] This embodiment provides a car, specifically, the car includes a car rear-end collision monitoring and anti-damage system, the system includes a car processor, a throttle state monitoring module, an acceleration sensor, a brake control module and a gearbox control module. The car processor is connected to the throttle state monitoring module and the acceleration sensor for communication, and the car processor obtains the car acceleration and throttle state in real time through the throttle state monitoring module and the acceleration sensor.

[0077] Specifically, the automobile of this embodiment adopts the automobile rear-end collision monitoring and anti-damage system of the second embodiment.

[0078] Embodiment 4

[0079] This embodiment provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, a method for monitoring and preventing damage to a rear-end collision of a vehicle is implemented, wherein the method specifically includes:

[0080] Real-time monitoring of the acceleration and throttle status of the car. When the acceleration and throttle status do not correspond and fall within the rear-end collision threshold, it is confirmed that the car has entered the rear-end collision state and the emergency damage prevention mechanism is activated.

[0081] In the emergency damage prevention mechanism, monitor whether the vehicle transmission is in the parking gear and release the parking gear transmission locking mechanism;

[0082] Apply the brakes with full force until the vehicle comes to a stop after being rear-ended.

[0083] Specifically, in this embodiment, when the computer program is executed by the processor, the vehicle rear-end collision monitoring and damage prevention method in the embodiment is implemented.

[0084] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for monitoring and preventing damage in case of rear-end collision of automobiles, characterized in that: Applied to a vehicle rear-end collision monitoring and damage prevention system, the system includes a vehicle processor, and the method includes: Real-time monitoring of the acceleration and throttle status of the vehicle. When the acceleration and throttle status do not correspond and fall within the rear-end collision threshold, it is confirmed that the vehicle has entered the rear-end collision state, a software interrupt mechanism is established, and the vehicle processor activates an emergency damage prevention mechanism. In the emergency damage prevention mechanism, the vehicle transmission is monitored to see if it is in the park gear and the parking gear transmission locking mechanism is released; Apply the brakes with full force until the vehicle comes to a stop due to rear-end collision.

2. The vehicle rear-end collision monitoring and damage prevention method according to claim 1, characterized in that: The method further comprises: Determine whether the vehicle has stopped in the rear-end collision state; If so, release the brake and apply the parking brake; If not, keep the brakes at full force.

3. The vehicle rear-end collision monitoring and damage prevention method according to claim 1, characterized in that: The real-time monitoring of the acceleration and throttle status of the vehicle, and when the acceleration and throttle status do not correspond and fall within a rear-end collision state threshold, confirming that the vehicle has entered a rear-end collision state includes: Get the real-time acceleration of the car through the acceleration sensor and obtain the real-time throttle status of the car; Compare the real-time acceleration of the car with the preset acceleration corresponding to the throttle state of the car; If the difference between the real-time acceleration and the preset acceleration is greater than the preset threshold, it is determined that the car is in a rear-end collision state.

4. The vehicle rear-end collision monitoring and damage prevention method according to claim 3, characterized in that: The vehicle processor collects the real-time acceleration of the vehicle through the acceleration sensor inside the GPS module.

5. The vehicle rear-end collision monitoring and damage prevention method according to claim 1, characterized in that: The said starting emergency damage prevention mechanism comprises: The vehicle processor receives warning information indicating that the vehicle has been rear-ended; Activate the interruption mechanism of the emergency damage prevention mechanism and start the emergency warning plan of the emergency damage prevention mechanism.

6. The vehicle rear-end collision monitoring and damage prevention method according to claim 1, characterized in that: The method of monitoring whether the automobile transmission is in the parking gear and releasing the parking gear transmission locking mechanism includes: Determine whether the car's transmission is in parking gear; If so, release the gearbox locking mechanism and proceed to the next process; If not, go directly to the next process.

7. A car rear-end collision monitoring and anti-damage system, characterized in that: The vehicle-mounted vehicle control system comprises a vehicle-mounted processor, a throttle status monitoring module, an acceleration sensor, a brake control module, and a transmission control module; the vehicle-mounted vehicle control system is communicatively connected to the throttle status monitoring module and the acceleration sensor to obtain the vehicle's acceleration and throttle status in real time; the vehicle-mounted vehicle control system is controllably connected to the vehicle's brake control module and transmission control module; the system executes the vehicle rear-end collision monitoring and damage prevention method according to any one of claims 1 to 6 through the vehicle-mounted vehicle control system.

8. The vehicle rear-end collision monitoring and damage prevention system according to claim 7, characterized in that: The system also includes a CAN communication module. The vehicle processor is controlled and connected to the vehicle's brake control module and transmission control module through the CAN communication module.

9. An automobile, characterized in that: The vehicle rear-end collision monitoring and anti-damage system includes the vehicle rear-end collision monitoring and anti-damage system according to claim 7 or 8.

10. A storage medium, characterized in that: The storage medium stores a computer program, which, when executed by a processor, implements the vehicle rear-end collision monitoring and damage prevention method according to any one of claims 1 to 6.

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