CN-122009171-A - Vehicle running speed control method and related equipment

CN122009171ACN 122009171 ACN122009171 ACN 122009171ACN-122009171-A

Abstract

The application discloses a vehicle running speed control method and related equipment, and relates to the technical field of vehicle control, wherein the method comprises the steps of obtaining multi-source running data of a target vehicle; the method comprises the steps of carrying out weighted fusion on multi-source running data to obtain an initial speed control instruction, correcting the initial speed control instruction based on conflict information to obtain a target speed control instruction if the conflict information exists in the multi-source running data, and sending the target speed control instruction to a driving execution module of a target vehicle to control the running speed of the target vehicle. According to the application, through acquisition and weighted fusion of the multi-source driving data and correction of the vehicle speed control instruction when conflict information exists, the vehicle speed control instruction is acted on the vehicle execution module, and the reliable and stable vehicle driving speed control with high scene suitability which takes account of road environment, regulation constraint and driving behavior characteristics can be realized.

Inventors

LUO KUAN
ZHANG GUIHAI
Wu Leizhi

Assignees

岚图汽车科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260112

Claims (10)

1. A vehicle running speed control method characterized by comprising: The method comprises the steps of obtaining multi-source driving data of a target vehicle, wherein the multi-source driving data comprise traffic environment data and road traffic rule data from a cloud, driving habit data stored at a vehicle end and environment perception data from a vehicle-mounted sensor; carrying out weighted fusion on the multi-source driving data to obtain an initial speed control instruction; If conflict information exists in the multi-source driving data, correcting the initial speed control instruction based on the conflict information to obtain a target speed control instruction; And sending the target speed control instruction to a driving execution module of the target vehicle so as to control the vehicle running speed of the target vehicle.
2. The vehicle running speed control method according to claim 1, wherein the performing weighted fusion on the multi-source running data to obtain an initial speed control instruction includes: Based on the driving scene of the target vehicle, respectively distributing a first preset weight, a second preset weight, a third preset weight and a fourth preset weight for the traffic environment data, the road traffic rule data, the driving habit data and the environment perception data; performing weighted calculation on the multi-source driving data based on the first preset weight, the second preset weight, the third preset weight and the fourth preset weight, and determining a target vehicle speed and an acceleration control parameter; and generating the initial speed control instruction according to the target vehicle speed and the acceleration control parameter.
3. The vehicle running speed control method according to claim 2, wherein the assigning the first preset weight, the second preset weight, the third preset weight, and the fourth preset weight to the traffic environment data, the road passing rule data, the driving habit data, and the environment awareness data, respectively, based on the driving scenario of the target vehicle, includes: Acquiring basic weight configuration aiming at the traffic environment data, the road traffic rule data, the driving habit data and the environment perception data; if the driving scene is a highway scene, the value corresponding to the second preset weight is increased and the value corresponding to the third preset weight is reduced relative to the basic weight configuration, so that the first preset weight, the second preset weight, the third preset weight and the fourth preset weight are respectively distributed for the traffic environment data, the road traffic rule data, the driving habit data and the environment perception data; If the driving scene is an urban congestion scene, the numerical value corresponding to the third preset weight is improved relative to the basic weight configuration, and the numerical value corresponding to the first preset weight is reduced, so that the first preset weight, the second preset weight, the third preset weight and the fourth preset weight are respectively distributed for the traffic environment data, the road passing rule data, the driving habit data and the environment perception data; If the driving scene is an urban unobstructed scene, the numerical value corresponding to the first preset weight is increased and the numerical value corresponding to the fourth preset weight is reduced relative to the basic weight configuration, so that the first preset weight, the second preset weight, the third preset weight and the fourth preset weight are respectively allocated to the traffic environment data, the road passing rule data, the driving habit data and the environment perception data.
4. The vehicle running speed control method according to claim 1, characterized in that before correcting the initial speed control instruction based on the conflict information to obtain a target speed control instruction if the conflict information exists in the multi-source running data, the vehicle running speed control method further comprises: Determining first vehicle speed control information based on the traffic environment data and the road traffic rule data, determining second vehicle speed control information based on the driving habit data, and determining third vehicle speed control information based on the environment-aware data; If the difference value of the speed change trend indicated by any two of the first speed control information, the second speed control information and the third speed control information exceeds a preset difference threshold value, judging that conflict information exists in the multi-source driving data; and determining the data source information corresponding to the speed change trend exceeding the preset difference threshold as the conflict information.
5. The vehicle running speed control method according to claim 4, characterized in that the correcting the initial speed control command based on the collision information to obtain a target speed control command includes: based on the conflict information, determining a conflict type corresponding to the conflict information; If the conflict type is a safety type, correcting the initial speed control instruction based on the vehicle speed control information indicating safety risk in the conflict information to obtain the target speed control instruction; And if the conflict type is the unsafe type, adjusting based on the data confidence of each vehicle speed control information in the conflict information so as to correct the initial speed control instruction and obtain the target speed control instruction.
6. The vehicle running speed control method according to claim 5, wherein the adjusting based on the data confidence of each vehicle speed control information in the conflict information includes: Acquiring a first data confidence coefficient of the first vehicle speed control information, a second data confidence coefficient of the second vehicle speed control information and a third data confidence coefficient of the third vehicle speed control information; And adjusting the speed change trend and/or the acceleration control parameter in the initial speed control instruction based on the proportional relation among the first data confidence coefficient, the second data confidence coefficient and the third data confidence coefficient.
7. The vehicle running speed control method according to any one of claims 1 to 6, characterized in that after transmitting the target speed control instruction to a drive execution module of the target vehicle to control a vehicle running speed of the target vehicle, the vehicle running speed control method further comprises: Acquiring execution feedback data generated by the driving execution module in response to the target speed control instruction, wherein the execution feedback data comprises energy consumption data, smoothness indexes and vehicle speed control deviation data; And adjusting a preset control response curve of the driving execution module based on the execution feedback data so that the target vehicle executes vehicle speed control according to the adjusted preset control response curve in the subsequent driving process.
8. A vehicle travel speed control device characterized by comprising: the system comprises a data acquisition unit, a vehicle-mounted sensor and a vehicle-mounted sensor, wherein the data acquisition unit is used for acquiring multi-source driving data of a target vehicle, and the multi-source driving data comprises traffic environment data and road traffic rule data from a cloud end, driving habit data stored at a vehicle end and environment sensing data from the vehicle-mounted sensor; The initial instruction acquisition unit is used for carrying out weighted fusion on the multi-source driving data to obtain an initial speed control instruction; The target instruction acquisition unit is used for correcting the initial speed control instruction based on the conflict information if the conflict information exists in the multi-source running data so as to obtain a target speed control instruction; And the vehicle speed control unit is used for sending the target speed control instruction to a driving execution module of the target vehicle so as to control the vehicle running speed of the target vehicle.
9. An electronic device comprising a memory and a processor, characterized in that the processor is adapted to implement the steps of the vehicle running speed control method according to any one of claims 1 to 7 when executing a computer program stored in the memory.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, realizes the steps of the vehicle running speed control method according to any one of claims 1 to 7.

Description

Vehicle running speed control method and related equipment Technical Field The application relates to the technical field of vehicle control, in particular to a vehicle running speed control method and related equipment. Background Along with the continuous development of intelligent network-connected automobile technology and advanced driving auxiliary systems, the vehicle driving speed control is one of key technologies for guaranteeing driving safety, improving passing efficiency and driving comfort, and in the actual road driving process, the vehicle is required to not only follow road regulation requirements, but also comprehensively consider various factors such as traffic environment changes, surrounding vehicle states, driving behavior characteristics and the like, so that higher requirements are provided for the intellectualization and the accuracy of a vehicle speed control method. In the related art, the vehicle running speed control generally mainly depends on local environment information acquired by a vehicle-mounted sensor or a speed limiting control strategy based on a fixed rule, and although partial schemes introduce cloud traffic information or navigation data, the partial schemes are mostly simply overlapped or independently used, so that the real running scene of the vehicle is difficult to comprehensively reflect. In addition, under the condition that information from different data sources is inconsistent or mutually conflicting, the prior art easily causes unreasonable and even mutually contradictory vehicle speed control instructions, and further affects the safety and stability of vehicle running. That is, there is a technical problem in the related art that the vehicle speed control accuracy and reliability are insufficient. Disclosure of Invention In the summary of the application, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. The summary of the application is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. The vehicle running speed control method and the related equipment provided by the application can realize reliable and stable vehicle running speed control with strong scene suitability, which takes account of road environment, regulation constraint and driving behavior characteristics, by acquiring and weighting fusion of multi-source running data, correcting the vehicle speed control instruction when conflict information exists, and then acting on the vehicle execution module. The application provides a vehicle running speed control method, which comprises the steps of obtaining multi-source running data of a target vehicle, wherein the multi-source running data comprise traffic environment data from a cloud, road traffic rule data, driving habit data stored at a vehicle end and environment perception data from a vehicle-mounted sensor, carrying out weighted fusion on the multi-source running data to obtain an initial speed control instruction, correcting the initial speed control instruction based on conflict information if the conflict information exists in the multi-source running data to obtain the target speed control instruction, and sending the target speed control instruction to a driving execution module of the target vehicle to control the vehicle running speed of the target vehicle. In some embodiments, the performing weighted fusion on the multi-source driving data to obtain an initial speed control instruction includes respectively allocating a first preset weight, a second preset weight, a third preset weight and a fourth preset weight to the traffic environment data, the road traffic rule data, the driving habit data and the environment perception data based on a driving scene of the target vehicle, performing weighted calculation on the multi-source driving data based on the first preset weight, the second preset weight, the third preset weight and the fourth preset weight to determine a target vehicle speed and an acceleration control parameter, and generating the initial speed control instruction according to the target vehicle speed and the acceleration control parameter. In some embodiments, the allocating a first preset weight, a second preset weight, a third preset weight, and a fourth preset weight to the traffic environment data, the road traffic rule data, the driving habit data, and the environment awareness data, respectively, based on the driving scenario of the target vehicle includes acquiring a basic weight configuration for the traffic environment data, the road traffic rule data, the driving habit data, and the environment awareness data, if the driving scenario is an expressway scenario, increasing a value corresponding to the second preset weight relative to the basic weight configuration, decreasing a value co