Driving assistance system, method and medium for vehicle and vehicle

Abstract

A driving assistance system, a vehicle, and a corresponding method and storage medium are provided for a vehicle. The system includes: a detection unit for detecting whether the current driving state of the vehicle indicates an intention to overtake; an evaluation unit for determining, based on the planned routes of the current vehicle and the vehicle ahead, whether the proximity of the current vehicle's position to the node where the vehicle ahead will leave the current road is within a threshold; and a warning unit for providing a warning signal in response to detecting that the current vehicle's driving state indicates an intention to overtake and determining that the proximity of the current vehicle's position to the node where the vehicle ahead will leave the current road is within the threshold. Using the solution of this invention, the driver can be informed not to overtake when it is known that the vehicle ahead will soon leave the current road. This improves overtaking safety and reduces problems such as additional fuel and / or electricity consumption, driver fatigue, and reduced passenger experience associated with overtaking.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and more particularly, to a driving assistance system for a vehicle, a vehicle comprising the same, and a corresponding method and a computer-readable storage medium. Background Art

[0002] In the process of driving, it is common for drivers to overtake in order to reach the destination as soon as possible or for other reasons. However, overtaking is often accompanied by various risks, such as collision with the vehicle in front or other objects. In addition, overtaking is also accompanied by additional consumption of fuel and / or electricity, driver fatigue, and reduced riding experience. There are solutions related to overtaking in the prior art. However, all of these solutions focus on safety assessment to ensure safe driving. In fact, there is also a situation where the vehicle in front may leave the current road within a short distance ahead (for example, within 100 meters), that is, its route will deviate from the route of the current vehicle. In this case, overtaking becomes unnecessary and brings almost no benefits.

[0003] Therefore, there is an urgent need for a technical solution in this field, which can determine whether it is necessary to overtake based on the driving routes of the current vehicle and the vehicle in front of it, and send a reminder signal that overtaking is not necessary when it is determined that the driver has the intention to overtake but at the same time determines that overtaking is not necessary. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a technical solution, which can remind the driver not to overtake according to the judgment that overtaking is not necessary when the driver is overtaking. The present invention improves driving safety on the one hand, and reduces the extra consumption of fuel and / or electricity, driver fatigue and reduced riding experience caused by overtaking on the other hand.

[0005] Specifically, according to a first aspect of the present invention, there is provided a driving assistance system for a vehicle, the system comprising:

[0006] a detection unit configured to detect whether the driving state of the current vehicle indicates that the current vehicle has an overtaking intention;

[0007] An evaluation unit is configured to determine whether the proximity between the position of the current vehicle and the node where the preceding vehicle leaves the current road is within a threshold value based on the planned route of the current vehicle and the preceding vehicle; and a reminder unit is configured to provide a reminder signal in response to the detection unit detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, and the evaluation unit determines that the proximity between the position of the current vehicle and the node where the preceding vehicle leaves the current road is within a threshold value.

[0008] In one embodiment, the proximity of the current vehicle's position to the node where the preceding vehicle leaves the current road is a time proximity and / or a distance proximity.

[0009] In one embodiment, the detection unit detects whether the current vehicle has an overtaking intention by one or more of the following ways: the turn signal is activated, the steering wheel is turned at a large angle and accelerated, and / or the lateral position of the current vehicle moves on the lane marking.

[0010] In one embodiment, the system further includes an image acquisition unit and an image recognition unit, wherein the image acquisition unit is configured to acquire an image of a vehicle in front, and the image recognition unit is configured to recognize vehicle identification information of the vehicle in front based on the image of the vehicle in front acquired by the image acquisition unit, thereby identifying the vehicle in front.

[0011] In one embodiment, the reminder unit provides a visual, audible and / or tactile signal.

[0012] According to a second aspect of the present invention, there is provided a vehicle comprising the system of the first aspect of the present invention.

[0013] According to a third aspect of the present invention, there is provided a driving assistance method for a vehicle, the method comprising:

[0014] Detecting whether the driving state of the current vehicle indicates that the current vehicle has an intention to overtake;

[0015] Determining whether the proximity of the current vehicle's position to a node where the preceding vehicle exits the current road is within a threshold based on the current vehicle's planned route and the preceding vehicle's route; and

[0016] In response to detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, and determining that the proximity of the position of the current vehicle to a node where the leading vehicle exits the current road is within a threshold, a reminder signal is provided.

[0017] In one embodiment, the proximity of the current vehicle's position to the node where the preceding vehicle leaves the current road is a time proximity and / or a distance proximity.

[0018] In one embodiment, whether the current vehicle has an overtaking intention is detected by one or more of the following methods: the turn signal is activated, the steering wheel is turned at a large angle and accelerated, and / or the lateral position of the current vehicle moves on the lane mark.

[0019] In one embodiment, the method further includes: capturing an image of a leading vehicle, and recognizing vehicle identification information of the leading vehicle based on the captured image of the leading vehicle, thereby identifying the leading vehicle.

[0020] In one embodiment, the reminder signal is a visual, auditory and / or tactile signal.

[0021] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the method described in the third aspect of the present invention when executed by a processor.

[0022] By using the solution of the present invention, the driver can be informed that it is not necessary to overtake (or it is not worthwhile to overtake) when it is known that the vehicle ahead will soon leave the current road (for example, turn around, drive out of the exit). This improves the safety of overtaking on the one hand, and reduces the extra consumption of fuel and / or electricity, driver fatigue, and reduced riding experience associated with overtaking on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Non-limiting and non-exhaustive embodiments of the present invention are described, by way of example, with reference to the following drawings, in which:

[0024] Figure 1 is a schematic diagram showing a driving assistance system for a vehicle according to an embodiment of the first aspect of the present invention.

[0025] Figure 2 is a schematic diagram showing a driving assist method for a vehicle according to an embodiment of the third aspect of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application 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 application and are not used to limit the present application.

[0027] Before describing the system and method of the present invention in detail, a brief description is first given of the environment on which the system and method of the present invention are implemented.

[0028] The implementation of the present invention relies on vehicle-to-vehicle (V2V) communication and / or vehicle-to-everything (V2X) communication. Those skilled in the art will appreciate that a V2V network or a V2X network may be based on various communication technologies, such as Wi-Fi, Bluetooth, mobile networks, etc., but not limited thereto.

[0029] Specifically, the vehicle can communicate with one or more other vehicles around it through V2V communication. In other words, the vehicle can form a V2V communication network with one or more vehicles around it. V2V communication refers to wireless data transmission between motor vehicles. For example, in order to prevent accidents or for other purposes, the vehicle can send its current position and speed information to other vehicles around it through the V2V communication network, and / or receive vehicle position and speed information from other vehicles around it, so that the relevant information of each other can be known in real time. After receiving warnings from other vehicles, the driver can make corresponding operations, or the vehicle (for autonomous driving vehicles or vehicles with autonomous driving vehicle mode) itself can take autonomous measures, such as acceleration, deceleration, steering, etc., thereby reducing the risk of accidents. In some embodiments, vehicles in the V2V communication network can exchange various relevant information through V2V communication, such as vehicle identification information such as license plate number, part or all of the route, and / or itinerary, or notify other vehicles in the network of their specific actions, such as parking (for example, due to vehicle failure), turning right at a certain intersection, or exiting an exit, etc. In summary, the current vehicle can transmit its driving information and / or status information to other vehicles in the network through V2V communication, and can also receive driving information and / or status information from other vehicles in the network through V2V communication, wherein the driving information may, for example, include vehicle identification information such as license plate number, part or all of the route, itinerary, etc., and the status information may, for example, include its specific actions, such as parking (for example, due to vehicle failure), turning right at a certain intersection, exiting an exit, etc.

[0030] Instead of V2V communication or in addition to V2V communication, the vehicle can also communicate with other vehicles in the network through the V2X network. The V2X network includes at least one base station (or central server), and all vehicles in the network communicate with other vehicles through the base station. In some embodiments of the present invention, the network also includes a central server (or base station), and the vehicle communicates with one or more vehicles around it through the central server or base station.

[0031] The following is a detailed description of the driving assistance system and method for a vehicle and related computer-readable storage medium of the present invention.

[0032] According to a first aspect of the present invention, a driving assistance system for a vehicle is provided. Figure 1 A schematic diagram of a driving assistance system 100 for a vehicle according to an embodiment of the first aspect of the present invention is shown. The exemplary driving assistance system 100 includes a detection unit 110 , an evaluation unit 120 , and a reminder unit 130 .

[0033] The detection unit 110 can be configured to detect whether the driving state of the current vehicle indicates that the current vehicle has an intention to overtake. There are many types of vehicle driving states, including vehicle start, accelerating, driving at a constant speed, decelerating, changing lanes, stopping, etc. The detection unit 110 detects whether the driving state of the current vehicle indicates that the current vehicle has an intention to overtake in a variety of ways, for example, one or more of the following: the turn signal is enabled, the steering wheel is turned at a large angle and accelerated, and / or the side position of the current vehicle moves on the lane marking, etc. For example, in one example, if the detection unit 110 detects that the left turn signal of the vehicle is activated and the left side of the vehicle is crossing the lane marking line, it can be determined that the vehicle has an intention to overtake.

[0034] The detection unit 110 may also be configured to identify the vehicle in front. The detection unit 110 may identify the vehicle in front in a variety of ways. For example, in some embodiments, the detection unit 110 may identify vehicles within a distance set in front of the road in the network through V2V or V2X communication. As described above, the vehicles in the network may exchange each other's current location information (e.g., in the form of geographic location coordinates) through the V2V or V2X communication network. To this end, the detection unit 110 may detect one or more other vehicles within a distance set in front of the road in the network (e.g., 50, 100, or 150 meters, etc.), and identify the vehicle in front of the current vehicle based on the position information of the one or more other vehicles relative to the current vehicle. For another example, in other embodiments, information associated with the vehicle in front may be obtained through the vehicle identification information of the vehicle in front, such as the license plate number, including the driving information and / or status information as described above. In such an embodiment, the detection unit 110 may include an image acquisition unit and an image recognition unit, wherein the image acquisition unit is configured to acquire an image of a vehicle in front of the current vehicle, and the image recognition unit is configured to recognize the vehicle identification information of the vehicle in front, such as a license plate number, based on the image of the vehicle in front acquired by the image acquisition unit, thereby identifying the vehicle in front. The image acquisition unit may be any image acquisition device (such as a camera / camera) capable of acquiring a single image frame or multiple continuous image frames (such as a video), and may be arranged at any position in the current vehicle that is capable of / convenient to acquire an image of the vehicle in front, such as being arranged at the front windshield of the current vehicle. The image acquisition unit is communicatively connected to the image recognition unit, thereby transmitting the acquired image of the vehicle in front to the image recognition unit for it to recognize the vehicle identification information of the vehicle in front, such as a license plate number, thereby identifying the vehicle in front. It is understood that the image acquisition unit and the image recognition unit may be two independent units, but may also be separate units integrated into one. In the above embodiment, the image acquisition unit and the image recognition unit are arranged on the detection unit 110, but it should be understood that they may also be arranged on the system 100 as separate parts.

[0035] The evaluation unit 120 may be configured to determine whether the proximity between the current position of the current vehicle and the node where the preceding vehicle exits the current road is within a threshold value based on the planned routes of the current vehicle and the preceding vehicle.

[0036] As mentioned above, the implementation of the present invention needs to be implemented in the context of a V2V and / or V2X communication network. Through the V2V and / or V2X communication network, the current vehicle and the vehicle in front can exchange their driving information (e.g., vehicle identification information such as license plate number, itinerary, planned route (including partial planned route and full-length planned route)) and / or status information (e.g., parking (such as due to vehicle failure), turning right at a certain intersection, exiting an exit) with each other. Based on this network, the vehicle in front can be identified and the status information of the vehicle in front can be obtained, such as the next step of the planned route. In this context, the evaluation unit 120 can determine whether the current position of the current vehicle is within a threshold value based on the planned routes of the current vehicle and the vehicle in front obtained through the network. The proximity of the node where the vehicle in front leaves the current road.

[0037] Specifically, the evaluation unit 120 can be configured to learn the node where the front vehicle leaves the current road through the network (more specifically, through the planned route transmitted via the network), and determine whether the proximity between the current position of the current vehicle and the node where the front vehicle leaves the current road is within a threshold. Different from the scheme of risk reminder based on the distance between the current vehicle and the front vehicle in the prior art, in the present invention, the evaluation of whether it is necessary to overtake and the corresponding reminder are performed based on the distance / proximity between the position of the current vehicle and the node where the front vehicle leaves the current road. From another perspective, the evaluation of whether it is necessary to overtake and the corresponding reminder can be performed based on the degree of overlap between the current vehicle and the front vehicle within a certain travel distance (the end point of the overlap indicates that the current vehicle and the front vehicle are separated, indicating that after the certain travel distance, the front vehicle potentially no longer constitutes the front vehicle of the current vehicle). In some embodiments, the proximity between the position of the current vehicle and the node where the front vehicle leaves the current road can be time proximity and / or distance proximity. That is, proximity can be measured in time and / or distance. The so-called "time proximity" refers to the length of time it takes for the current vehicle to travel from the current position to the node where the vehicle in front leaves the current road, and the so-called "distance proximity" refers to the length of the distance from the current position of the current vehicle to the node where the vehicle in front leaves the current road. Therefore, determining whether the proximity between the current position of the current vehicle and the node where the vehicle in front leaves the current road is within the threshold may include: determining whether the distance L between the current position of the current vehicle and the node where the vehicle in front leaves the current road is less than or equal to a preset distance length threshold LTh; and / or determining whether the time T it takes for the current vehicle to travel from the current position to the node where the vehicle in front leaves the current road is less than or equal to a preset time length threshold TTh. Those skilled in the art know that the calculation of the time T it takes to travel from the current position of the current vehicle to the node where the vehicle in front leaves the current road can be based on the speed of the current vehicle, the speed limit of the road section and / or traffic conditions, etc. At the same time, the time length threshold T can also be adjusted based on the speed of the vehicle, the speed limit of the road section and / or traffic conditions, etc. Th .

[0038] The reminder unit 130 is communicatively connected to the detection unit 110 and the evaluation unit 120, and is configured to provide a reminder signal in response to the detection unit 110 detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, and the evaluation unit 120 determines that the proximity between the current position of the current vehicle and the node where the front vehicle leaves the current road is within a threshold. Specifically, when the evaluation unit 120 determines that the proximity between the current position of the current vehicle and the node where the front vehicle leaves the current road is within a threshold, it indicates that the front vehicle will soon leave the road where the current vehicle is traveling, and will no longer constitute the front vehicle (relative to the current vehicle). At this time, it is obviously unnecessary or unworthy to overtake the front vehicle, so the reminder unit 130 can remind the driver accordingly based on this evaluation result that there is no need to overtake. The reminder that the driver does not need to overtake can also be used in a variety of ways, such as visual, auditory and / or tactile ways. For example, the text "No need to overtake, the front vehicle is about to leave the current road" can be displayed on the vehicle display, and / or a corresponding voice broadcast can be performed. In some embodiments of the invention, speed recommendations may be given based on the proximity of the current position of the current vehicle to the node where the vehicle ahead is leaving the current road, such as a recommendation to slow down to match the pace of the vehicle ahead leaving the node of the current road. For example, if it is determined that the vehicle ahead is exiting the exit to the right 150 meters ahead, the current vehicle is recommended to slow down in advance, thereby improving safety.

[0039] According to a second aspect of the present invention, a vehicle is provided, comprising the driving assistance system for the vehicle according to the first aspect.

[0040] According to a third aspect of the present invention, a driving assistance method for a vehicle is provided. Figure 2 A schematic diagram of a driving assistance method 200 for a vehicle according to an embodiment of the third aspect of the present invention is shown. As shown in the figure, the method 200 includes:

[0041] S210: Detecting whether the driving state of the current vehicle indicates that the current vehicle has an intention to overtake;

[0042] S220: Determine whether the proximity between the position of the current vehicle and the node where the front vehicle leaves the current road is within a threshold according to the planned route of the current vehicle and the front vehicle; and

[0043] S230: In response to detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, and determining that the proximity between the position of the current vehicle and the node where the leading vehicle leaves the current road is within a threshold, providing a reminder signal.

[0044] It can be understood that the above description of the driving assistance system 100 for a vehicle according to the first aspect of the present invention is applicable to various aspects of the driving assistance method 200 for a vehicle according to the second aspect of the present invention. For example, in the method, the proximity between the position of the current vehicle and the node where the front vehicle leaves the current road is time proximity and / or distance proximity; in the method, whether the current vehicle has an intention to overtake is detected by one or more of the following ways: the turn signal is enabled, the steering wheel is turned at a large angle and accelerated, and / or the side position of the current vehicle moves on the lane mark; in the method, it also includes collecting an image of the front vehicle, identifying the vehicle identification information of the front vehicle based on the collected image of the front vehicle, thereby identifying the front vehicle; in the method, the reminder signal is a visual, auditory and / or tactile signal.

[0045] The fourth aspect of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the method described in the third aspect of the present invention when executed by a processor. For example, when executed by a processor, the computer program can instruct the processor and / or corresponding components to implement the following steps: detecting whether the driving state of the current vehicle indicates that the current vehicle has an intention to overtake; determining whether the proximity between the position of the current vehicle and the node where the front vehicle leaves the current road is within a threshold value based on the planned route of the current vehicle and the vehicle ahead of it; and providing a reminder signal in response to detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, and determining that the proximity between the position of the current vehicle and the node where the front vehicle leaves the current road is within a threshold value.

[0046] In the present invention, the vehicle may be a conventional vehicle, or an autonomous driving vehicle or a vehicle with an autonomous driving mode.

[0047] In addition, it should be understood that each unit in the above-mentioned driving assistance system 100 for a vehicle can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned units can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above-mentioned units.

[0048] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program that can be run on the processor is stored on the memory, and the steps of the method in any of the above embodiments are implemented when the processor executes the computer program. The computer device can be a server or a vehicle-mounted terminal. The computer device includes a processor, a memory, a network interface and a database connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the driving assistance method for a vehicle of the present invention is implemented.

[0049] Those skilled in the art will understand that Figure 1 The schematic diagram of the driving assistance system 100 for a vehicle and related components shown in the figure is merely a schematic block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the system to which the scheme of the present application is applied. The specific system may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0050] Those of ordinary skill in the art can understand that all or part of the steps in the method according to the above-mentioned embodiments of the present invention can be implemented by instructing the relevant hardware to complete through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the steps of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Although the present invention has been described in conjunction with the embodiments, it should be understood by those skilled in the art that the above description and the accompanying drawings are only exemplary and non-restrictive, and the present invention is not limited to the disclosed embodiments. Various modifications and variations are possible without departing from the spirit of the present invention.

Claims

1. A driving assistance system for a vehicle, characterized in that: The system comprises: a detection unit configured to detect whether the driving state of the current vehicle indicates that the current vehicle has an overtaking intention; an evaluation unit configured to determine whether the proximity of the current vehicle's position to a node where the preceding vehicle exits the current road is within a threshold value based on the current vehicle and the planned route of the preceding vehicle, and to provide an evaluation of whether overtaking is necessary based on the degree of overlap between the current vehicle and the preceding vehicle within a certain travel distance; and The reminder unit is configured to provide a corresponding reminder signal in response to the detection unit detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, and the evaluation unit determines that the proximity of the position of the current vehicle to the node where the front vehicle leaves the current road is within a threshold and whether it is necessary to overtake.

2. The system according to claim 1, characterized in that The proximity between the position of the current vehicle and the node where the preceding vehicle leaves the current road is time proximity and / or distance proximity.

3. The system according to claim 1 or 2, characterized in that: The detection unit detects whether the current vehicle has an overtaking intention by one or more of the following ways: the turn signal is activated, the steering wheel is turned at a large angle and accelerated, and / or the side position of the current vehicle moves on the lane mark.

4. The system according to claim 1 or 2, characterized in that: The system further includes: an image acquisition unit and an image recognition unit, wherein the image acquisition unit is configured to acquire an image of a front vehicle, and the image recognition unit is configured to recognize vehicle identification information of the front vehicle based on the image of the front vehicle acquired by the image acquisition unit, thereby identifying the front vehicle.

5. The system according to claim 1 or 2, characterized in that: The reminder unit provides a visual, audible and / or tactile signal.

6. A vehicle, characterized in that: Comprising a system according to any one of claims 1-5.

7. A driving assistance method for a vehicle, characterized in that: The method comprises: Detecting whether the driving state of the current vehicle indicates that the current vehicle has an intention to overtake; determining whether the proximity of the current vehicle's position to a node where the preceding vehicle exits the current road is within a threshold based on the current vehicle and the planned path of the preceding vehicle, and providing an assessment of whether overtaking is necessary based on the degree of overlap between the current vehicle and the preceding vehicle within a certain travel distance; and In response to detecting that the driving state of the current vehicle indicates that the current vehicle has an intention to overtake, determining that the proximity of the current vehicle's position to the node where the leading vehicle leaves the current road is within a threshold and evaluating whether overtaking is necessary, a corresponding reminder signal is provided.

8. The method according to claim 7, characterized in that The proximity between the position of the current vehicle and the node where the preceding vehicle leaves the current road is time proximity and / or distance proximity.

9. The method according to claim 7 or 8, characterized in that: Whether the current vehicle has an overtaking intention is detected by one or more of the following ways: the turn signal is activated, the steering wheel is turned at a large angle and accelerated, and / or the lateral position of the current vehicle moves on the lane mark.

10. The method according to claim 7 or 8, characterized in that: The method further includes: acquiring an image of a front vehicle, and recognizing vehicle identification information of the front vehicle based on the acquired image of the front vehicle, thereby identifying the front vehicle.

11. The method according to claim 7 or 8, characterized in that: The reminder signal is a visual, auditory and / or tactile signal.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 7 to 11 is implemented.

Images