Driver abrupt brake warning method and related system

Abstract

The application discloses a driver's sudden brake warning method and a related system, obtains the reliability of a vehicle braking condition based on vehicle driving information and vehicle control information, and obtains a determination result of the vehicle's sudden braking according to the reliability of the vehicle braking condition. The application utilizes the vehicle driving information and the vehicle control information, can reflect the multi-dimensional perception data inside and outside the vehicle, can utilize the multi-directional parameters of the vehicle's own driving control data and the vehicle driving environment data to determine the vehicle braking condition, can effectively improve the accuracy of the sudden brake condition determination in the case of operation failure, and then can control the vehicle based on the determination result. When the sudden brake condition really exists, the brake power output can be reduced in time, the vehicle can be ensured to reduce speed stably, and thus the incidence of the imbalance of the vehicle or the rear-end collision accident of the vehicle caused by the brake lock can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of vehicle control technology, specifically relating to a method and related system for warning drivers when they suddenly slam on the brakes. Background Technology

[0002] More and more people are choosing cars as their daily mode of transportation. Among the many components of a car, brakes are crucial. They allow a vehicle to stop or slow down, and their role is especially important in emergency situations. However, sudden braking can damage the car.

[0003] 1. Affects tire wear; 2. Reduces engine life; 3. Reduces clutch system life; 4. Increases fuel consumption; 5. Increases brake system wear; 6. Accelerates brake master cylinder damage.

[0004] Braking reduces speed or stops a vehicle. Its working principle involves using the friction between brake pads and brake drums, and between tires and the ground, to convert the vehicle's kinetic energy into heat energy, thus slowing the vehicle down or bringing it to a stop. With the development of vehicle intelligence, automatic obstacle avoidance control is increasingly involved in daily braking control, while normal braking still relies on the driver's conscious control. However, during driving, drivers sometimes mistakenly press the accelerator instead of the brake, or become distracted, leading to sudden braking. Such errors significantly increase the incidence of traffic accidents. Currently, vehicle braking relies heavily on information such as throttle opening, wheel speed, and GPS positioning to detect driver errors. This method is often inaccurate, leading to frequent brake use, which accelerates wear on the braking system and reduces vehicle safety. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for warning drivers from sudden braking, so as to overcome the problem of inaccurate control in the prior art when drivers suddenly brake or make mistakes.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] In a first aspect, the present invention provides a method for warning a driver from sudden braking, comprising the following steps:

[0008] Collect vehicle driving information and vehicle control information;

[0009] Based on the vehicle driving information and the vehicle control information, the reliability of the vehicle braking status is obtained;

[0010] Based on the reliability of the vehicle's braking situation, a determination result of the vehicle's sudden braking is obtained, and an early warning is issued based on the determination result of the vehicle's sudden braking.

[0011] The vehicle driving information includes vehicle external environment information and vehicle driver status information; the vehicle external environment information includes target environment information of the road segment in which the vehicle is traveling.

[0012] The confidence level of the vehicle braking status obtained based on the vehicle driving information and the vehicle control information specifically includes: obtaining a first confidence level parameter of the vehicle braking status based on the vehicle driving information and the vehicle control information.

[0013] The first confidence level of the vehicle's braking status is obtained based on the first confidence level parameter of the vehicle's braking status.

[0014] The first confidence parameter for vehicle braking status includes the target environment factor, driver state factor, and brake pedal pressure factor. Corresponding weights are assigned to the target environment factor, driver state factor, and brake pedal pressure factor. The first confidence level is obtained based on the target environment factor, driver state factor, and brake pedal pressure factor and their respective weights.

[0015] The first confidence level of the vehicle's braking condition is obtained by weighting and averaging environmental factors, driver state factors, and brake pedal pressure factors.

[0016] The second level of confidence in the vehicle's braking status is obtained based on the vehicle's emergency braking parameters in the vehicle control information.

[0017] Obtaining the second level of confidence in vehicle braking status specifically includes the following steps:

[0018] If the vehicle's emergency braking parameters meet the requirements for emergency braking, it means that the vehicle is using emergency braking at this time, and the second confidence level is 1, which is completely reliable, and emergency braking is implemented. Otherwise, the vehicle is judged to be in emergency braking based on the first confidence level value.

[0019] In a second aspect, the present invention provides a driver sudden braking warning system, comprising: an information acquisition module, a reliability calculation module, and a warning module;

[0020] The information acquisition module is used to collect vehicle driving information and vehicle control information;

[0021] The credibility calculation module is used to obtain the credibility of the vehicle braking situation based on the vehicle driving information and the vehicle control information;

[0022] The warning module is used to obtain the determination result of the vehicle's sudden braking based on the reliability of the vehicle's braking situation, and to issue a warning based on the determination result of the vehicle's sudden braking.

[0023] In a third aspect, a computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the driver's sudden braking warning method described above.

[0024] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described driver emergency braking warning method.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects:

[0026] This invention provides a method for warning drivers of sudden braking. It obtains the reliability of vehicle braking status based on vehicle driving information and vehicle control information, and determines whether sudden braking has occurred based on this reliability. This invention utilizes vehicle driving information and the aforementioned vehicle control information to reflect multiple dimensions of perception data both inside and outside the vehicle. It can use multi-dimensional parameters of the vehicle's own driving control data and the vehicle's driving environment data to judge the vehicle's braking status, effectively improving the accuracy of judging sudden braking in cases of driver error. Based on the judgment result, the vehicle can be controlled. When sudden braking does occur, the braking force output can be reduced in a timely manner to ensure the vehicle can decelerate steadily, thereby reducing the incidence of vehicle imbalance due to brake lock-up or rear-end collisions. Attached Figure Description

[0027] Figure 1 This is a flowchart of the driver's sudden braking warning method in an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the driver sudden braking warning system in an embodiment of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] like Figure 1 As shown, the present invention provides a method for warning a driver from sudden braking, comprising the following steps:

[0032] S1 collects vehicle driving information and vehicle control information;

[0033] In one embodiment of this application, the vehicle driving information includes vehicle external environment information and vehicle driver status information; the vehicle external environment information includes target environment information of the road segment in which the vehicle is traveling;

[0034] The target environment information of the vehicle's travel segment includes other vehicles, pedestrians, road facilities, surrounding buildings, and the road environment; the road environment includes highway environment, urban road environment, and parking lot internal road environment.

[0035] The specific driver status information includes whether the driver is driving while fatigued or exhibiting other behaviors that indicate a lack of concentration, such as looking at a mobile phone or having their eyes deviating from the direction of the vehicle's movement.

[0036] In one embodiment of this application, the vehicle control information includes accelerator pedal pressure, brake pedal pressure, vehicle direction of travel, accelerator pedal travel rate of change, brake pedal travel rate of change, and vehicle emergency braking parameters.

[0037] S2, Based on the vehicle driving information and the vehicle control information, obtain the reliability of the vehicle braking status;

[0038] In this embodiment, based on the vehicle driving information and the vehicle control information, it is possible to determine whether the driver has suddenly or accidentally applied the brakes. Appropriate weights are assigned to the vehicle driving information and the vehicle control information. The reliability of the vehicle braking situation is obtained according to the set weights and the scores of the vehicle driving information and the vehicle control information. A higher reliability of the vehicle braking situation indicates higher driver accuracy, while a lower reliability indicates driver error. Therefore, the vehicle's braking force output is reduced to prevent the vehicle from becoming unbalanced due to sudden braking or causing a rear-end collision due to the following vehicle's inability to avoid a collision, thus minimizing vehicle damage.

[0039] S3, based on the reliability of the vehicle's braking situation, obtain the determination result of the vehicle's sudden braking, and issue a warning based on the determination result of the vehicle's sudden braking.

[0040] Based on steps S1 to S3 above, this embodiment of the invention obtains the reliability of the vehicle's braking status based on vehicle driving information and vehicle control information, and obtains the judgment result of sudden braking based on the reliability of the vehicle's braking status. This invention utilizes vehicle driving information and the vehicle control information to reflect multiple dimensions of perception data inside and outside the vehicle. It can use multi-dimensional parameters of the vehicle's own driving control data and the vehicle driving environment data to judge the vehicle's braking status, which can effectively improve the accuracy of judging sudden braking in the event of control error. Then, the vehicle can be controlled based on the judgment result. When sudden braking does occur, the braking power output can be reduced in time to ensure that the vehicle can decelerate steadily, thereby reducing the incidence of vehicle imbalance or rear-end collisions caused by brake lock-up.

[0041] In one embodiment of this application, obtaining the reliability of the vehicle braking status based on the vehicle driving information and the vehicle control information includes the following steps:

[0042] S201, based on the vehicle driving information and the vehicle control information, obtain the reliability of the vehicle braking status.

[0043] Specifically, in S2011, a first confidence parameter for the vehicle braking status is obtained based on the vehicle driving information and the vehicle control information;

[0044] S2012, based on the first confidence parameter of the vehicle braking status, obtain the first confidence level of the vehicle braking status.

[0045] The primary confidence parameters for vehicle braking conditions include the target environmental factor, the driver's state factor, and the brake pedal pressure factor.

[0046] Environmental target factors are obtained based on information about the vehicle's external environment. For example, environmental target factors can be set according to the environment of the road the vehicle is driving on. The more complex the road, the higher the probability of the vehicle encountering a sudden accident, and therefore the larger the value of the environmental target factor. Different environmental factors can be set for different road environments. For example, the environmental factor for highway environments can be 0.1, the environmental factor for urban road environments can be 0.4, and the environmental factor for parking lot internal road environments can be 0.9.

[0047] The driver status factor is obtained based on the vehicle driver status information. The driver's driving status determines the credibility of his braking judgment. If the driver's driving status is good, that is, he is not looking at his mobile phone, is not driving under the influence of alcohol, or is not driving while fatigued, the higher the credibility of his braking judgment, the higher the driver status factor value. Conversely, the worse the driver's driving status, the lower the driver status factor value.

[0048] The brake pedal pressure factor is obtained based on the vehicle control information. The brake pedal pressure factor value is the value of the brake pedal pressure value divided by 100.

[0049] Each of the target environmental factor, driver state factor, and brake pedal pressure factor is assigned a corresponding weight. Based on the target environmental factor, driver state factor, and brake pedal pressure factor and their respective weights, the first confidence level is obtained.

[0050] Specifically, in this embodiment, the first confidence level of the vehicle braking condition is obtained by weighted averaging of environmental factors, driver state factors, and brake pedal pressure factors.

[0051] Specifically, the second level of confidence in the vehicle's braking status is obtained based on the vehicle's emergency braking parameters in the vehicle control information.

[0052] The second confidence level of the vehicle's braking status is obtained based on the vehicle's emergency braking parameters in the vehicle control information, specifically including the following steps:

[0053] If the vehicle's emergency braking parameters meet the requirements for emergency braking, it means that the vehicle is using emergency braking at this time, and the second confidence level is 1, which is completely reliable, and emergency braking is implemented. Otherwise, the vehicle is judged to be in emergency braking based on the first confidence level value.

[0054] If the first confidence level of the obtained vehicle braking information is less than the set threshold, it indicates that the braking was due to driver error or improper operation. The brake output should be reduced to avoid the vehicle deviating from its course or being rear-ended by other vehicles due to emergency braking. If the first confidence level of the obtained vehicle braking information is greater than or equal to the set threshold, it indicates that the driver anticipates the need for emergency braking and therefore performs emergency braking.

[0055] If the vehicle's emergency braking parameters do not meet the vehicle's emergency braking requirements, and the first confidence level of the obtained vehicle braking status is less than the set threshold, it indicates that the braking was due to driver error or improper operation. In this case, the instrument panel will issue a beeping alarm to remind the driver to drive normally, so as to avoid damaging the vehicle and effectively prevent accidents from occurring.

[0056] The following are embodiments of the apparatus of the present invention, which can be used to execute embodiments of the method of the present invention. For details not omitted in the apparatus embodiments, please refer to the embodiments of the method of the present invention.

[0057] See Figure 2 In another embodiment of the present invention, a driver sudden braking warning system is provided, which can be used to implement the driver sudden braking warning method in the above embodiment. Specifically, the driver sudden braking warning system includes: an information collection module, a reliability calculation module, and a warning module.

[0058] The information acquisition module is used to collect vehicle driving information and vehicle control information.

[0059] The credibility calculation module is used to obtain the credibility of the vehicle braking situation based on the vehicle driving information and the vehicle control information;

[0060] The warning module is used to obtain the determination result of the vehicle's sudden braking based on the reliability of the vehicle's braking situation, and to issue a warning based on the determination result of the vehicle's sudden braking.

[0061] In another embodiment of the present invention, a terminal device is provided, comprising a processor and a memory. The memory stores a computer program, which includes program instructions. The processor executes the program instructions stored in the computer storage medium. The processor may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing and control core of the terminal, suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions to achieve a corresponding method flow or corresponding function. The processor described in this embodiment can be used in the operation of a driver's sudden braking warning method, including the following steps: collecting vehicle driving information and vehicle control information; obtaining the reliability of the vehicle braking situation based on the vehicle driving information and the vehicle control information; obtaining the determination result of the vehicle's sudden braking based on the reliability of the vehicle braking situation; and issuing a warning based on the determination result of the vehicle's sudden braking.

[0062] In another embodiment of the present invention, a storage medium is provided, specifically a computer-readable storage medium (Memory). This computer-readable storage medium is a memory device in a terminal device used to store programs and data. It is understood that the computer-readable storage medium here can include both the built-in storage medium in the terminal device and extended storage media supported by the terminal device. The computer-readable storage medium provides storage space that stores the terminal's operating system. Furthermore, this storage space also stores one or more instructions suitable for loading and execution by a processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be high-speed RAM or non-volatile memory, such as at least one disk storage device.

[0063] One or more instructions stored in a computer-readable storage medium can be loaded and executed by a processor to implement the corresponding steps of the driver's sudden braking warning method in the above embodiments; collect vehicle driving information and vehicle control information; obtain the reliability of the vehicle braking situation based on the vehicle driving information and the vehicle control information; obtain the determination result of the vehicle sudden braking based on the reliability of the vehicle braking situation; and issue a warning based on the determination result of the vehicle sudden braking.

[0064] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0065] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0066] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0067] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for warning drivers of sudden braking, characterized in that, Includes the following steps: Collect vehicle driving information and vehicle control information; Based on the vehicle driving information and the vehicle control information, the reliability of the vehicle braking status is obtained, specifically including: based on the vehicle driving information and the vehicle control information, a first reliability parameter of the vehicle braking status is obtained; Based on the first confidence parameter of the vehicle braking status, obtain the first confidence of the vehicle braking status; The first confidence parameter for vehicle braking status includes target environmental factor, driver state factor and brake pedal pressure factor. Corresponding weights are assigned to the target environmental factor, driver state factor and brake pedal pressure factor. The first confidence level is obtained based on the target environmental factor, driver state factor and brake pedal pressure factor and their respective weights. Obtaining the second level of confidence in vehicle braking status specifically includes the following steps: If the vehicle's emergency braking parameters meet the vehicle's emergency braking requirements, it means that the vehicle is using emergency braking at this time, and the second confidence level is 1, which is completely reliable and emergency braking is implemented. Otherwise, the vehicle is judged to be in emergency braking based on the first confidence level value. Based on the reliability of the vehicle's braking situation, a determination result of the vehicle's sudden braking is obtained, and an early warning is issued based on the determination result of the vehicle's sudden braking.

2. The method for warning a driver from suddenly slamming on the brakes according to claim 1, characterized in that, The vehicle driving information includes vehicle external environment information and vehicle driver status information; the vehicle external environment information includes target environment information of the road segment in which the vehicle is traveling.

3. The method for warning a driver from suddenly slamming on the brakes according to claim 1, characterized in that, The first confidence level of the vehicle's braking condition is obtained by weighting and averaging environmental factors, driver state factors, and brake pedal pressure factors.

4. A method for warning drivers from sudden braking according to claim 1, characterized in that, The second level of confidence in the vehicle's braking status is obtained based on the vehicle's emergency braking parameters in the vehicle control information.

5. A driver sudden braking warning system, characterized in that, include: Information collection module, credibility calculation module, and early warning module; The information acquisition module is used to collect vehicle driving information and vehicle control information; The credibility calculation module is used to obtain the credibility of the vehicle braking status based on the vehicle driving information and the vehicle control information, specifically including: obtaining a first credibility parameter of the vehicle braking status based on the vehicle driving information and the vehicle control information; Based on the first confidence parameter of the vehicle braking status, obtain the first confidence of the vehicle braking status; The first confidence parameter for vehicle braking status includes target environmental factor, driver state factor and brake pedal pressure factor. Corresponding weights are assigned to the target environmental factor, driver state factor and brake pedal pressure factor. The first confidence level is obtained based on the target environmental factor, driver state factor and brake pedal pressure factor and their respective weights. Obtaining the second level of confidence in vehicle braking status specifically includes the following steps: If the vehicle's emergency braking parameters meet the vehicle's emergency braking requirements, it means that the vehicle is using emergency braking at this time, and the second confidence level is 1, which is completely reliable and emergency braking is implemented. Otherwise, the vehicle is judged to be in emergency braking based on the first confidence level value. The warning module is used to obtain the determination result of the vehicle's sudden braking based on the reliability of the vehicle's braking situation, and to issue a warning based on the determination result of the vehicle's sudden braking.

6. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the driver sudden braking warning method as described in any one of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the driver sudden braking warning method as described in any one of claims 1 to 4.

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