4results about How to "Avoid sudden braking" patented technology

The application provides a multi-intention interactive game decision method and system for automatic driving path planning, which fuses current environment information and current state information by acquiring the current state information and the current environment information, extracts state features and intention features of a moving target from current scene features, fuses the intention features of the state features of the moving target, constructs a game relationship graph, calculates attention weights between an automatic driving vehicle and the moving target, weights and aggregates a value vector by a prediction probability and the attention weights of different preset intention features executed by the automatic driving vehicle, performs feature splicing, nonlinear conversion and decoding on the aggregated features, evaluates each game candidate trajectory, and selects a game candidate trajectory with the maximum game value score as the automatic driving path; the application reduces uncertainty in the interactive process, avoids the risk of sudden braking or collision caused by misjudgment, and has stronger environmental adaptability and generalization ability.

This disclosure provides a vehicle control method, device, equipment, and unmanned vehicle, relating to the field of autonomous driving technology. The specific implementation scheme is as follows: Based on the vehicle's driving data and obstacle driving data within the current unit time period across multiple unit time periods, the acceleration decision value for the vehicle in the next unit time period is determined; based on the acceleration decision value and the vehicle's driving data, the reference speed and reference position of the vehicle at the end of the next unit time period are determined; based on the vehicle's reference speed and reference position at each moment, a reference speed sequence and a reference position sequence for the vehicle are obtained; the reference speed sequence and reference position sequence are optimized to obtain a planned speed sequence and a planned position sequence for the vehicle; the vehicle's driving is controlled based on the planned speed sequence and planned position sequence. This scheme fully considers the impact of obstacles on the vehicle within each time unit, improving the vehicle's driving stability and car-following performance.

The invention discloses a Transform-based driving habit prediction method and device, and belongs to the technical field of automatic driving and intelligent driving assistance, and the method comprises the steps: obtaining and preprocessing the historical vehicle driving data of a driver, and obtaining a vehicle driving data sequence in which the dimensional difference between different parameters is eliminated; a sliding window is adopted to slide on the vehicle driving data sequence, and a data sample containing a corresponding data label is extracted; training a Transform-based driving habit prediction model by using a data sample containing a corresponding data label, and in the training process, performing back propagation and parameter optimization by using a mean square error loss function to obtain a trained driving habit prediction model; and inputting real-time vehicle driving data into the trained driving habit prediction model to carry out real-time prediction on the vehicle driving data to obtain a driving habit prediction result. The auxiliary driving information can be obtained according to different persons, and the driving experience of a driver is improved.

The utility model discloses a road construction safety early warning vehicle relates to road construction safety early warning technical field, including main part, the main part still includes early warning mechanism, and the bottom of main part is provided with a plurality of moving wheel, the utility model drives push plate to move down with electric telescopic link, and push plate moves down in the process of driving push rod to move down, and push rod moves down in the process of driving connecting strip synchronous down, and further make articulated guardrail expand outward to preset position, like this can accurate cover the dangerous range of construction area, let rear vehicle clear identification safety boundary, and electric telescopic link can reverse contraction, drive articulated guardrail automatic retraction, and the early warning vehicle is convenient for fastly removed to new construction position, and adapts many place operation demand, and articulated guardrail expands, and dangerous alarm flashing light passes through the light of high brightness scintillation, can remind rear vehicle in front of the construction area in several hundred meters, let the driver have enough time to slow down, change lane, and all -round improve the safety protection of construction area.