Autonomous Vehicle Pedestrian Interaction Control

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Solution Overview

Problem

Current autonomous vehicle control systems lack effective methods to safely interact with pedestrians and manage speed adjustments based on real-time pedestrian behavior and environmental conditions, potentially leading to accidents.

Innovation Solution

A method and apparatus for controlling autonomous vehicles that send behavior prompt information to pedestrians, determine if deceleration conditions are met based on pedestrian behavior, and adjust vehicle speed or apply emergency braking as necessary, using target areas and vehicle-mounted devices to ensure safe operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the autonomous vehicle sends behavior prompt information and adjusts speed based on pedestrian behavior, then the safety of pedestrian interaction is improved, but the system complexity increases due to multiple target areas and decision conditions

Engineering Contradiction:
Improvesafety of pedestrian interactionVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system divides the surrounding environment into multiple target areas (first target area, second target area, third target area, fourth target area) with different safety levels and response requirements. Each target area has specific geometric definitions and triggers different control actions, enabling structured handling of complex pedestrian interaction scenarios without overwhelming system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system pre-defines multiple target areas and their corresponding control actions in advance. When a pedestrian enters a target area, the system executes pre-determined behaviors (sending prompt information, adjusting speed, stopping, or emergency braking) based on the area type, eliminating the need for complex real-time decision-making algorithms

Inventive Principle:
Principle #10Preliminary action

2Speed

If the autonomous vehicle continuously monitors pedestrian behavior and adjusts speed frequently, then the responsiveness to pedestrians is improved, but the energy consumption increases

Engineering Contradiction:
Improveresponsiveness to pedestriansVSAvoidenergy consumption
Core Design Contradiction:
SpeedVSUse of energy by moving object

Solution Approach 1:

The system implements periodic monitoring by checking pedestrian positions and behaviors at discrete time points rather than continuous monitoring. Speed adjustments are triggered by specific events (pedestrian entering target areas, behavior changes) rather than continuous control, reducing computational load and energy consumption while maintaining responsive pedestrian interaction

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS11269324B2Method and apparatus for controlling autonomous vehicle
Publication Date: 2022.03.08 APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO LTD
  • US11269324B2 patent drawing
  • US11269324B2 patent drawing
  • US11269324B2 patent drawing

AI summary

A method and an apparatus for controlling an autonomous vehicle are provided according to the embodiments of the disclosure. The method includes: sending, in response to determining that a pedestrian is in a first target area, behavior prompt information representing prompting the pedestrian to make a corresponding behavior; determining whether a deceleration condition matching the behavior prompt information is satisfied based on acquired behavior information of the pedestrian; and sending control information for reducing a moving speed of the autonomous vehicle, in response to determining that the deceleration condition is satisfied and determining that a speed of the autonomous vehicle is greater than a preset deceleration threshold. According to the embodiments, deceleration control of the autonomous vehicle is achieved based on the response of the pedestrian to the behavior prompt information.