Auxiliary speed limiting method and device for vehicle

Abstract

The invention relates to an auxiliary speed limiting method and device for a vehicle, and the method comprises the steps: detecting whether the current driving road of the vehicle has speed limiting information or not; when it is detected that the speed limiting information does not exist on the current driving road, an auxiliary speed limiting mode of the vehicle is activated, and auxiliary speed limiting information of the vehicle is obtained; and verifying the effectiveness of the auxiliary speed limiting information, and controlling the vehicle to run within the range of the speed limiting information after verification is passed. According to the embodiment of the invention, the auxiliary speed limit mode of the vehicle can be activated when the road speed limit information is lost, and the speed of the vehicle is limited after the validity verification of the auxiliary speed limit information is passed, so that the vehicle can accurately sense the road speed limit in the intelligent driving process, the defect of inaccurate speed limit is overcome, and the driving safety of the vehicle is improved. The safety of vehicle driving is improved, and the intelligence and practicability of the vehicle are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle safety control, and in particular to a method and device for assisting speed limiting of a vehicle. Background Art

[0002] In the field of intelligent driving of automobiles, vehicles usually need to adjust their driving speed in real time according to road conditions. For example, on highways, the speed limit in tunnels is usually much lower than the normal speed limit. The speed of the vehicle needs to be adjusted and reduced before the intelligent driving enters the tunnel section, and then restored to the normal speed limit after the vehicle leaves the tunnel. This type of scenario exists widely. For example, there are different speed limit requirements at the forks on the highway, dangerous sections, and roads in different provinces and cities. That is, the intelligent driving system needs to have methods for speed control on different sections to meet the safety requirements during vehicle driving.

[0003] In the related art, CN106023628A proposes a speed limit assistance system and a speed limit assistance method for a vehicle, which can identify the speed limit sign and feedback the speed limit information through a camera acquisition unit; transmit the speed limit information through a gateway; receive the speed limit information sent back by the camera acquisition unit through the on-board control unit and compare it with the current vehicle speed, and control the body components to display the speed limit information, sound and light alarms or / and limit the vehicle speed according to the comparison results, so as to obtain more accurate speed limit data as the basis for vehicle driving, remind the driver and even limit the speed of the vehicle in combination with intelligent driving.

[0004] However, in the related technology, due to changes in road conditions or incomplete information, there may be inaccurate speed limit information on certain sections of the road, and speed limit signs are also missing on certain roads. Environmental factors lead to recognition abnormalities, making it difficult to accurately perceive the road speed limit. Inaccurate speed limits reduce the safety of vehicle driving during intelligent driving, which urgently needs to be improved. Summary of the invention

[0005] The present application provides a vehicle auxiliary speed limit method and device to solve the problem in the related art that due to changes in road conditions or incomplete information, there will be inaccurate speed limit information on certain road sections, and speed limit signs on certain roads are also missing. Environmental factors lead to recognition abnormalities, making it difficult to accurately perceive the road speed limit, inaccurate speed limit, and reduced vehicle driving safety during intelligent driving.

[0006] The first aspect of the present application provides an auxiliary speed limit method for a vehicle, comprising the following steps: detecting whether there is speed limit information on the current driving road of the vehicle; when it is detected that there is no speed limit information on the current driving road, activating the auxiliary speed limit mode of the vehicle and obtaining the auxiliary speed limit information of the vehicle; and verifying the validity of the auxiliary speed limit information, and controlling the vehicle to travel within the range of the speed limit information after verification.

[0007] According to the above-mentioned technical means, the embodiment of the present application can activate the auxiliary speed limit mode of the vehicle when the road speed limit information is missing, and limit the speed of the vehicle after the validity of the auxiliary speed limit information is verified, thereby ensuring that the vehicle can accurately perceive the road speed limit during intelligent driving, making up for the shortcomings of inaccurate speed limit, improving the safety of vehicle driving during intelligent driving, and ensuring the intelligence and practicality of the vehicle.

[0008] Optionally, in some embodiments, the obtaining of the auxiliary speed limit information of the vehicle includes: obtaining speed limit history data of the current driving road; and generating the auxiliary speed limit information of the vehicle according to the speed limit history data.

[0009] According to the above technical means, the embodiment of the present application can obtain the speed limit history data of the current road, thereby providing a basis for the subsequent generation of auxiliary speed limit information; the embodiment of the present application can match the corresponding road section through the road number when the user is performing route navigation and generate the auxiliary speed limit information of the vehicle, and obtain the speed limit plan of the corresponding route of the road section, so that the user can select the corresponding speed limit plan data for use according to the auxiliary speed limit information of the vehicle, thereby improving the intelligence and practicality of the vehicle.

[0010] Optionally, in some embodiments, obtaining the auxiliary speed limit information of the vehicle includes: obtaining a speed limit value set by a user; and generating the auxiliary speed limit information of the vehicle according to the speed limit value set by the user and road information of the current driving road.

[0011] According to the above-mentioned technical means, the embodiment of the present application can obtain the speed limit value set by the user, providing a basis for the subsequent generation of auxiliary speed limit information; the embodiment of the present application can record the legal and valid speed limit value input by the user during the intelligent driving of the vehicle, and then obtain the corresponding road information through real-time positioning, thereby generating the auxiliary speed limit information of the vehicle, thereby realizing accurate perception of the road speed limit and improving the safety of vehicle driving during intelligent driving.

[0012] Optionally, in some embodiments, obtaining the auxiliary speed limit information of the vehicle further includes: receiving a user's voice speed limit signal; and generating the auxiliary speed limit information of the vehicle according to the user's voice speed limit signal and road information of the current driving road.

[0013] According to the above-mentioned technical means, the embodiment of the present application can receive the user's voice speed limit signal, providing a basis for the subsequent generation of auxiliary speed limit information; the embodiment of the present application can combine the user's voice speed limit signal with the road information of the current driving road, establish the speed limit item of the current driving road, and record it through local storage, thereby generating auxiliary speed limit information of the vehicle, and further realizing accurate perception of the road speed limit.

[0014] Optionally, in some embodiments, verifying the validity of the auxiliary speed limit information includes: determining whether the auxiliary speed limit information satisfies a preset rationality condition and a preset validity condition; if both the preset rationality condition and the preset validity condition are satisfied, the verification is successful, and the speed limit information after the verification is obtained.

[0015] According to the above-mentioned technical means, the embodiment of the present application can determine whether the auxiliary speed limit information meets certain rationality conditions and certain effectiveness conditions, and provide support for the subsequent control of safe driving of the vehicle; when both meet certain rationality conditions and certain effectiveness conditions, the verification is passed, and the speed limit information after verification is obtained, thereby controlling the vehicle's safe speed limit, controlling the vehicle speed within the safe speed limit range, and improving the safety of vehicle driving during intelligent driving.

[0016] Optionally, in some embodiments, the method further includes: in a case where it is detected that the speed limit information exists on the current driving road, verifying the validity of the speed limit information, and controlling the vehicle to travel within the range of the verified speed limit information.

[0017] According to the above-mentioned technical means, the embodiment of the present application can directly extract the road speed limit information, verify the validity of the speed limit information, and control the vehicle to travel within the range of the speed limit information after verification when detecting that there is speed limit information on the current driving road, thereby further compensating for the shortcomings of inaccurate speed limit, improving the safety of vehicle driving during intelligent driving, and ensuring the intelligence and practicality of the vehicle.

[0018] A second aspect of the present application provides an auxiliary speed limit device for a vehicle, comprising: a detection module, used to detect whether there is speed limit information on the current driving road of the vehicle; an acquisition module, used to activate the auxiliary speed limit mode of the vehicle and acquire the auxiliary speed limit information of the vehicle when it is detected that the speed limit information does not exist on the current driving road; and a control module, used to verify the validity of the auxiliary speed limit information and control the vehicle to travel within the range of the speed limit information after verification.

[0019] Optionally, in some embodiments, the acquisition module includes: a first acquisition unit, used to acquire speed limit history data of the current driving road; and a first generation unit, used to generate auxiliary speed limit information of the vehicle according to the speed limit history data.

[0020] Optionally, in some embodiments, the acquisition module includes: a second acquisition unit, used to acquire a speed limit value set by a user; and a second generation unit, used to generate auxiliary speed limit information of the vehicle according to the speed limit value set by the user and road information of the current driving road.

[0021] Optionally, in some embodiments, the acquisition module further includes: a receiving unit for receiving a user's voice speed limit signal; and a third generating unit for generating auxiliary speed limit information of the vehicle according to the user's voice speed limit signal and road information of the current driving road.

[0022] Optionally, in some embodiments, the control module includes: a judgment unit, used to judge whether the auxiliary speed limit information meets preset rationality conditions and preset validity conditions; a determination unit, used to verify if both the preset rationality conditions and the preset validity conditions are met, and obtain the speed limit information after the verification.

[0023] Optionally, in some embodiments, it also includes: a control unit, which is used to verify the validity of the speed limit information when it is detected that the speed limit information exists on the current driving road, and control the vehicle to travel within the range of the verified speed limit information.

[0024] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the auxiliary speed limiting method for the vehicle as described in the above embodiment.

[0025] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the auxiliary speed limiting method for a vehicle as described in the above embodiment.

[0026] Beneficial effects of the embodiments of the present application:

[0027] (1) The embodiments of the present application can activate the auxiliary speed limit mode of the vehicle when the road speed limit information is missing, and limit the speed of the vehicle after the validity of the auxiliary speed limit information is verified, thereby ensuring that the vehicle can accurately perceive the road speed limit during intelligent driving, compensating for the shortcomings of inaccurate speed limit, improving the safety of vehicle driving during intelligent driving, and ensuring the intelligence and practicality of the vehicle.

[0028] (2) The embodiment of the present application can obtain the speed limit value set by the user, providing a basis for the subsequent generation of auxiliary speed limit information; the embodiment of the present application can record the legal and valid speed limit value input by the user during the intelligent driving of the vehicle, and then obtain the corresponding road information through real-time positioning, so as to generate the auxiliary speed limit information of the vehicle, thereby realizing accurate perception of the road speed limit and improving the safety of vehicle driving during the intelligent driving process.

[0029] (3) The embodiment of the present application can determine whether the auxiliary speed limit information meets certain rationality conditions and certain validity conditions, and provide support for the subsequent control of vehicle safe driving; when both certain rationality conditions and certain validity conditions are met, the verification is passed, and the speed limit information after verification is obtained, thereby controlling the vehicle's safe speed limit, controlling the vehicle speed within the safe speed limit range, and improving the safety of vehicle driving during intelligent driving.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 A flowchart of an auxiliary speed limiting method for a vehicle provided according to an embodiment of the present application;

[0033] Figure 2 Schematic diagram of the functional framework of an auxiliary speed limiting method for a vehicle according to an embodiment of the present application;

[0034] Figure 3 The auxiliary speed limiting flow chart of the auxiliary speed limiting method for a vehicle according to one embodiment of the present application;

[0035] Figure 4 This is an auxiliary speed limiting scenario diagram of an auxiliary speed limiting method for a vehicle according to an embodiment of the present application;

[0036] Figure 5 It is a structural schematic diagram of an auxiliary speed limiting device for a vehicle provided according to an embodiment of the present application;

[0037] Figure 6 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application.

[0038] Among them, 10 is an auxiliary speed limiting device of the vehicle; 100 is a detection module, 200 is an acquisition module and 300 is a control module; 601 is a memory, 602 is a processor and 603 is a communication interface. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0040] The following describes the auxiliary speed limit method and device of the vehicle of the embodiment of the present application with reference to the accompanying drawings. In view of the above-mentioned related technologies mentioned in the background technology, due to the change of road state or incomplete information, there will be inaccurate speed limit information on some sections, and the speed limit signs on the road are also missing on certain roads, and the environmental factors cause abnormal recognition, making it difficult to accurately perceive the road speed limit, the speed limit is inaccurate, and the safety of the vehicle during intelligent driving is reduced. The present application provides an auxiliary speed limit method for a vehicle, in which the auxiliary speed limit mode of the vehicle can be activated when the road speed limit information is missing, and the speed of the vehicle is limited after the validity of the auxiliary speed limit information is verified, so as to ensure that the vehicle can accurately perceive the road speed limit during intelligent driving, make up for the shortcomings of inaccurate speed limit, improve the safety of vehicle driving, and ensure the intelligence and practicality of the vehicle. Thus, the problem that due to the change of road state or incomplete information in the related technology, there will be inaccurate speed limit information on some sections, and the speed limit signs on the road are also missing on certain roads, the environmental factors cause abnormal recognition, making it difficult to accurately perceive the road speed limit, the speed limit is inaccurate, and the safety of the vehicle during intelligent driving is reduced.

[0041] Specifically, Figure 1 A schematic flow chart of a vehicle auxiliary speed limiting method provided in an embodiment of the present application.

[0042] like Figure 1 As shown, the auxiliary speed limiting method of the vehicle includes the following steps:

[0043] In step S101, it is detected whether there is speed limit information on the current driving road of the vehicle.

[0044] It can be understood that the speed limit information in the embodiment of the present application can be a road speed limit value or a road speed limit data, which can be collected and detected by the vehicle's front-view camera.

[0045] In the actual implementation process, Figure 2 As shown, the embodiment of the present application can analyze the speed limit sign information collected by the front-view camera in real time through the visual perception function. When the front-view camera detects the speed limit sign information, it is determined that there is speed limit information on the current road of the vehicle. When the front-view camera does not detect the speed limit sign information, it is determined that there is no speed limit information on the current road of the vehicle.

[0046] The embodiments of the present application can detect whether there is speed limit information on the current road of the vehicle, thereby ensuring that the vehicle can accurately perceive the road speed limit during intelligent driving, which is beneficial to improving the safety of vehicle driving.

[0047] In step S102, when it is detected that there is no speed limit information on the current driving road, the auxiliary speed limit mode of the vehicle is activated to obtain the auxiliary speed limit information of the vehicle.

[0048] It is understandable that if Figure 2 As shown, the visual perception function, high-precision map function, voice control function, planning control function, human-computer interaction function and local storage function in the embodiments of the present application are all common functions of the intelligent driving system. The auxiliary speed limit mode is newly added, which can support the import and saving of custom speed limit information. The data in the auxiliary speed limit mode is constructed according to the Json data format.

[0049] During the actual implementation process, the embodiment of the present application can activate the vehicle's auxiliary speed limit mode and obtain the vehicle's auxiliary speed limit information when it is detected that there is no speed limit information on the current driving road. This ensures that when the road speed limit information is missing, the vehicle can further achieve accurate perception of the road speed limit during intelligent driving, improve the safety of the vehicle during intelligent driving, and ensure the intelligence and practicality of the vehicle.

[0050] It should be noted that the auxiliary speed limit mode stores data through a hash structure. The data header is the road number, and the data extension information includes the road type, road speed limit information, location coordinates, etc. The auxiliary speed limit mode can manage various custom speed limits on commonly used roads.

[0051] Optionally, in some embodiments, obtaining auxiliary speed limit information of the vehicle includes: obtaining speed limit history data of the current driving road; and generating auxiliary speed limit information of the vehicle according to the speed limit history data.

[0052] It can be understood that the speed limit history data in the embodiment of the present application includes but is not limited to the road number.

[0053] During the actual implementation process, the embodiment of the present application can obtain the speed limit history data of the current road when the vehicle is performing destination navigation planning, thereby providing a basis for the subsequent generation of auxiliary speed limit information; the embodiment of the present application can match the corresponding road section through the road number when the user is performing route navigation, and generate the auxiliary speed limit information of the vehicle, and obtain the speed limit plan of the corresponding route of the road section, so that the user can select the corresponding speed limit plan data for use according to the auxiliary speed limit information of the vehicle, thereby improving the intelligence and practicality of the vehicle.

[0054] Optionally, in some embodiments, obtaining auxiliary speed limit information of the vehicle includes: obtaining a speed limit value set by a user; and generating the auxiliary speed limit information of the vehicle according to the speed limit value set by the user and road information of the current driving road.

[0055] It will be appreciated that the speed limit value set by the user in the embodiment of the present application may be configured via a steering wheel speed limit button.

[0056] As a possible implementation method, the embodiment of the present application can obtain the speed limit value set by the user, and provide a basis for further generating auxiliary speed limit information by recording the speed limit value of the road section configured by the steering wheel speed limit button in real time; the embodiment of the present application can record the legal and valid speed limit value input by the user during the intelligent driving of the vehicle, and then obtain the corresponding road information through real-time positioning. The speed limit value set by the user and the road information of the current driving road can be combined to establish the speed limit item of the current driving road, and recorded through local storage, thereby generating auxiliary speed limit information of the vehicle, thereby realizing accurate perception of road speed limits and improving the safety of vehicle driving during intelligent driving.

[0057] It should be noted that the local storage in the embodiment of the present application can store file data in a protocol format.

[0058] Optionally, in some embodiments, obtaining the auxiliary speed limit information of the vehicle further includes: receiving a user's voice speed limit signal; and generating the auxiliary speed limit information of the vehicle according to the user's voice speed limit signal and road information of the current driving road.

[0059] Specifically, the embodiment of the present application can receive the user's voice speed limit signal. During the intelligent driving of the vehicle, according to the user's voice speed limit signal, the legal speed limit value input by voice in the voice speed limit configuration section is recorded in real time, and the road information of the current driving road is obtained through the real-time positioning function, so as to provide a basis for the subsequent generation of auxiliary speed limit information; the embodiment of the present application can combine the user's voice speed limit signal and the road information of the current driving road, establish the speed limit item of the current driving road, and record it through local storage, so as to generate auxiliary speed limit information of the vehicle, further realize the accurate perception of the road speed limit, and improve the safety of vehicle driving during intelligent driving.

[0060] Furthermore, for example, during vehicle driving, the user in the embodiment of the present application can also cancel the current custom speed limit or the speed limit value under the entire style by voice, or configure the speed limit value of the road section during current driving. When the user inputs "adjust the speed limit to 100", the voice control function parses the speed limit value according to the statement, and calls the auxiliary high-precision map function according to the default limit-speed-01 for relevant configuration.

[0061] In step S103, the validity of the auxiliary speed limit information is verified, and the vehicle is controlled to travel within the range of the verified speed limit information.

[0062] It is understood that the auxiliary speed limit information includes but is not limited to the speed limit information in the auxiliary speed limit mode, the speed limit information in the high-precision map function and the road sign information, among which, Figure 2 As shown, the high-precision map function is used for map and navigation path information in intelligent driving, as well as providing road attribute information and positioning information of road sections; the planning and control function combines the speed limit information in the auxiliary control mode, the speed limit information in the high-precision map function and the road sign information in the vehicle intelligent driving process to make a reasonable judgment on the vehicle speed, verify the validity of the auxiliary speed limit information, decide the vehicle's speed information, and then limit the speed safely, control the vehicle to travel within the range of the verified speed limit information, ensure that the vehicle is limited in speed after the validity of the auxiliary speed limit information is verified, improve the safety of vehicle driving during intelligent driving, and ensure the intelligence and practicality of the vehicle.

[0063] For example, the embodiment of the present application can verify the validity of the auxiliary speed limit information. When the speed limit value of the road sign is less than the current speed during vehicle driving, such as entering a tunnel section, the customized speed limit of the vehicle is cancelled; when the vehicle drives out of the tunnel section, if the subsequent section is still in the current road section, the vehicle speed limit is restored to the customized speed limit. In the embodiment of the present application, when the user adjusts the navigation speed and the speed limit value meets certain legal conditions, the auxiliary map function can extract the road number and location information from the current map data, and add the user-configured speed limit to store the data in the current style. Among them, the speed limit of each section supports multiple style fields, limit-speed-01 is used for the customized default speed limit style, and supports up to N speed limit styles. For example, after the vehicle is powered on, the auxiliary speed limit mode reads data from the local storage function and places it in the memory. When the user modifies the speed limit, the auxiliary speed limit mode will store the modified memory data in the local storage.

[0064] It should be noted that when configuring the intelligent speed limit, the user can choose custom style speed limit 1, custom style speed limit 2 and custom style speed limit 3. The speed limit configuration data will be directly sent to the auxiliary speed limit mode, and the auxiliary speed limit mode obtains the configuration data. When the intelligent driving is turned on and the custom auxiliary speed limit is activated, the user navigates on section road A, and when driving to section road-01, drives according to speed limit A. The user adjusts the speed on the section to reduce it to B. When the vehicle speed is adjusted to speed B and drives at this speed for T minutes, the auxiliary speed limit mode memorizes and saves the speed limit B and road road-01 information.

[0065] Optionally, in some embodiments, verifying the validity of the assisted speed limit information includes: determining whether the assisted speed limit information meets the preset rationality condition and the preset validity condition; if both meet the preset rationality condition and the preset validity condition, the verification passes, and the speed limit information after passing the verification is obtained.

[0066] It can be understood that the preset rationality condition and the preset validity condition in the embodiments of the present application can but are not limited to that the assisted speed limit information meets the rationality judgment and is within the safe speed limit range.

[0067] As a possible implementation manner, the embodiments of the present application can determine whether the assisted speed limit information meets certain rationality conditions and certain validity conditions to provide support for subsequent controlling the vehicle to drive safely; when both meet certain rationality conditions and certain validity conditions, the verification passes, and the speed limit information after passing the verification is obtained, so as to control the vehicle to be safely speed-limited, control the vehicle speed within the safe speed limit range, and improve the safety of the vehicle driving during the intelligent driving process.

[0068] It should be noted that the preset rationality condition and the preset validity condition can be set by those skilled in the art according to the actual situation, and no specific limitation is made here.

[0069] Optionally, in some embodiments, it further includes: when it is detected that there is speed limit information on the current driving road, verifying the validity of the speed limit information, and controlling the vehicle to drive within the range of the speed limit information after passing the verification.

[0070] In the actual execution process, the embodiments of the present application can directly extract the road speed limit information when it is detected that there is speed limit information on the current driving road, verify the validity of the speed limit information, and control the vehicle to drive within the range of the speed limit information after passing the verification. Among them, the planning control function requests the speed limit value and road style of this section from the map or the auxiliary map function in real time. The road speed limit value data comes from the intelligent speed limit mode traffic signs or the high-definition map data. The road speed limit and the custom map speed limit return data according to the following situations:

[0071] (1) There is no speed limit configured for the current road, but the auxiliary map mode returns a speed limit value B, and the speed limit value is B;

[0072] (2) The current road has a speed limit A, and the auxiliary map mode is configured with a speed limit B, A < B, and the limit value is A;

[0073] (3) The current road has a speed limit A, and the auxiliary map mode is configured with a speed limit B, A > B, and the limit value is B;

[0074] (4) The current road has a speed limit A, and there is no speed limit in the auxiliary map mode, and the limit value is A.

[0075] For example, the current road is not configured with a speed limit, but the auxiliary map mode returns a speed limit of 80km / h, and the speed limit is 80km / h; the current road speed limit is 75km / h, the auxiliary map mode is configured with an auxiliary speed limit of 80km / h, the road speed limit is less than the auxiliary speed limit, and the speed limit is 75km / h; the current road speed limit is 80km / h, the auxiliary map mode is configured with an auxiliary speed limit of 75km / h, the road speed limit is greater than the auxiliary speed limit, and the speed limit is 75km / h; the current road speed limit is 80km / h, the auxiliary map mode has no speed limit, and the speed limit is 80km / h. The planning control function can adjust the vehicle speed according to the above logic, and the interactive device displays the custom speed limit icon in real time on the interface, and the icon displays the user-configured speed limit in real time. When the vehicle travels to a non-custom speed limit section, the planning control function adjusts the speed limit, and the custom speed limit icon data on the interface is cancelled.

[0076] Specifically, it can be combined Figure 3 and Figure 4 As shown, the working principle of the auxiliary speed limiting method for a vehicle in the embodiment of the present application is described in detail with a specific embodiment.

[0077] like Figure 3 As shown, when the user starts smart driving, the high-definition map function returns navigation path data, which contains information about each road section. The assisted driving mode traverses the map path data and matches the road section information according to the following logic. If the assisted driving mode data field is involved in the road section in the navigation, the assisted driving mode will record the speed limit style involved. After the traversal is completed, the assisted driving mode returns the multiple styles of speed limits involved in the path (this data is used to prompt the user that the path involves a custom style). If no marked style section is found, there is no need to return data. The embodiment of the present application may include the following steps:

[0078] Step S301: Acquire road information.

[0079] Step S302: Determine whether there is road speed limit information on the road, if so, execute step S303; if not, execute step S304.

[0080] Step S303: extracting road speed limit information.

[0081] Step S304: Determine whether the auxiliary speed limit mode is activated, if so, execute step S305; if not, execute step S306.

[0082] Step S305: extract road speed limit information.

[0083] Step S306: verifying the validity of the speed limit information.

[0084] Step S307: planning and controlling the vehicle speed limit.

[0085] like Figure 4 As shown, in the auxiliary speed limit + road speed limit mode, the current road speed limit is 80km / h, the auxiliary speed limit is 75km / h, the road speed limit is greater than the auxiliary speed limit, and the current vehicle speed is 75km / h; the current road speed limit is 80km / h, there is no auxiliary speed limit, and the current vehicle speed is 80km / h; the current road speed limit is 80km / h, the auxiliary speed limit is 90km / h, the road speed limit is less than the auxiliary speed limit, and the current vehicle speed is 90km / h. In the auxiliary speed limit + road speed limit off mode, the current road speed limit is 80km / h, the auxiliary speed limit is 90km / h, the road speed limit is less than the auxiliary speed limit, and the current vehicle speed is 80km / h, which ensures that in the vehicle auxiliary speed limit scenario, the road speed limit is accurately perceived, which makes up for the shortcomings of inaccurate speed limit and improves the safety of vehicle driving during intelligent driving.

[0086] According to the auxiliary speed limit method for vehicles proposed in the embodiment of the present application, when the road speed limit information is missing, the auxiliary speed limit mode of the vehicle can be activated, and after the validity of the auxiliary speed limit information is verified, the speed of the vehicle can be limited, thereby ensuring that the vehicle can accurately perceive the road speed limit during intelligent driving, making up for the shortcomings of inaccurate speed limit, improving the safety of vehicle driving during intelligent driving, and ensuring the intelligence and practicality of the vehicle. Thus, the problem in the related art that due to changes in road status or incomplete information, there will be inaccurate speed limit information on certain sections of the road, and the speed limit signs on the road are also missing on certain roads, and environmental factors cause recognition abnormalities, making it difficult to accurately perceive the road speed limit, the speed limit is inaccurate, and the safety of vehicle driving during intelligent driving is reduced.

[0087] Next, the auxiliary speed limiting device for a vehicle according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0088] Figure 5 It is a schematic structural diagram of an auxiliary speed limiting device for a vehicle according to an embodiment of the present application.

[0089] like Figure 5 As shown, the auxiliary speed limiting device 10 of the vehicle includes: a detection module 100 , an acquisition module 200 and a control module 300 .

[0090] Specifically, the detection module 100 is used to detect whether there is speed limit information on the current driving road of the vehicle.

[0091] The acquisition module 200 is used to activate the auxiliary speed limit mode of the vehicle and acquire the auxiliary speed limit information of the vehicle when it is detected that there is no speed limit information on the current driving road.

[0092] The control module 300 is used to verify the validity of the auxiliary speed limit information and control the vehicle to travel within the range of the verified speed limit information.

[0093] Optionally, in some embodiments, the acquisition module 200 includes: a first acquisition unit and a first generation unit.

[0094] The first acquisition unit is used to acquire the speed limit history data of the current driving road.

[0095] The first generating unit is used to generate auxiliary speed limit information of the vehicle according to the speed limit history data.

[0096] Optionally, in some embodiments, the acquisition module 200 includes: a second acquisition unit and a second generation unit.

[0097] The second acquisition unit is used to acquire the speed limit value set by the user.

[0098] The second generating unit is used to generate auxiliary speed limit information of the vehicle according to the speed limit value set by the user and the road information of the current driving road.

[0099] Optionally, in some embodiments, the acquisition module 200 further includes: a receiving unit and a third generating unit.

[0100] The receiving unit is used to receive the user's voice speed limit signal.

[0101] The third generating unit is used to generate auxiliary speed limit information of the vehicle according to the user's voice speed limit signal and the road information of the current driving road.

[0102] Optionally, in some embodiments, the control module 300 includes: a judging unit and a determining unit.

[0103] The judgment unit is used to judge whether the auxiliary speed limit information meets the preset rationality condition and the preset validity condition.

[0104] The determination unit is used to verify that the preset rationality conditions and the preset validity conditions are met, and obtain the speed limit information after the verification.

[0105] Optionally, in some embodiments, it also includes: a control unit.

[0106] The control unit is used to verify the validity of the speed limit information when it is detected that there is speed limit information on the current driving road, and control the vehicle to travel within the range of the speed limit information after verification.

[0107] It should be noted that the above explanation of the embodiment of the auxiliary speed limiting method for a vehicle is also applicable to the auxiliary speed limiting device for a vehicle in this embodiment, and will not be repeated here.

[0108] According to the auxiliary speed limit device of the vehicle proposed in the embodiment of the present application, when the road speed limit information is missing, the auxiliary speed limit mode of the vehicle can be activated, and after the validity of the auxiliary speed limit information is verified, the speed of the vehicle can be limited, thereby ensuring that the vehicle can accurately perceive the road speed limit during intelligent driving, making up for the shortcomings of inaccurate speed limit, improving the safety of vehicle driving during intelligent driving, and ensuring the intelligence and practicality of the vehicle. Thus, the problem in the related art that due to changes in road status or incomplete information, there will be inaccurate speed limit information on certain sections of the road, and the speed limit signs on certain roads are missing, and environmental factors cause recognition abnormalities, making it difficult to accurately perceive the road speed limit, the speed limit is inaccurate, and the safety of vehicle driving during intelligent driving is reduced.

[0109] Figure 6 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0110] A memory 601 , a processor 602 , and a computer program stored in the memory 601 and executable on the processor 602 .

[0111] When the processor 602 executes the program, the auxiliary speed limiting method for the vehicle provided in the above embodiment is implemented.

[0112] Furthermore, the vehicle also includes:

[0113] The communication interface 603 is used for communication between the memory 601 and the processor 602 .

[0114] The memory 601 is used to store computer programs that can be executed on the processor 602 .

[0115] The memory 601 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0116] If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0117] Optionally, in a specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can communicate with each other through an internal interface.

[0118] The processor 602 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0119] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned auxiliary speed limiting method for a vehicle.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0121] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0122] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0123] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0124] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0125] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vehicle auxiliary speed limiting method, characterized in that: The following steps are involved: Detect whether there is speed limit information on the current road of the vehicle; When it is detected that the current driving road does not have the speed limit information, activating the auxiliary speed limit mode of the vehicle and obtaining the auxiliary speed limit information of the vehicle; as well as The validity of the auxiliary speed limit information is verified, and the vehicle is controlled to travel within the range of the verified speed limit information.

2. The method according to claim 1, characterized in that The obtaining of auxiliary speed limit information of the vehicle includes: Obtaining speed limit history data of the current driving road; Auxiliary speed limit information of the vehicle is generated according to the speed limit history data.

3. The method according to claim 1, characterized in that The obtaining of auxiliary speed limit information of the vehicle includes: Get the speed limit value set by the user; The auxiliary speed limit information of the vehicle is generated according to the speed limit value set by the user and the road information of the current driving road.

4. The method according to claim 1, characterized in that The obtaining of the auxiliary speed limit information of the vehicle further includes: Receive the user's voice speed limit signal; The auxiliary speed limit information of the vehicle is generated according to the user's voice speed limit signal and the road information of the current driving road.

5. The method according to claim 1, characterized in that The verifying the validity of the auxiliary speed limit information includes: Determining whether the auxiliary speed limit information meets a preset rationality condition and a preset validity condition; If both the preset rationality condition and the preset validity condition are satisfied, the verification is passed, and the speed limit information after the verification is passed is obtained.

6. The method according to claim 1, characterized in that Also includes: In the case where it is detected that the speed limit information exists on the current driving road, the validity of the speed limit information is verified, and the vehicle is controlled to travel within the range of the verified speed limit information.

7. An auxiliary speed limiting device for a vehicle, characterized in that: include: A detection module, used to detect whether there is speed limit information on the current road of the vehicle; an acquisition module, configured to activate the auxiliary speed limit mode of the vehicle and acquire the auxiliary speed limit information of the vehicle when detecting that the current driving road does not have the speed limit information; as well as The control module is used to verify the validity of the auxiliary speed limit information and control the vehicle to travel within the range of the verified speed limit information.

8. The device according to claim 7, characterized in that The acquisition module comprises: An acquisition unit, used to acquire the speed limit history data of the current driving road; A generating unit is used to generate auxiliary speed limit information of the vehicle according to the speed limit history data.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the auxiliary speed limiting method for a vehicle as claimed in any one of claims 1 to 6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the auxiliary speed limiting method for a vehicle as claimed in any one of claims 1 to 6.

Images