Multi-Agent Vehicle Control Using Neural Nash Equilibrium Prediction

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Solution Overview

Problem

In autonomous driving scenarios, existing technologies face challenges in efficiently controlling multiple interacting vehicles to maximize utility and robustness, as they struggle to predict and coordinate actions among multiple agents in real-time, especially in complex traffic situations.

Innovation Solution

A method utilizing two neural networks: a preference-ascertaining network to determine potential function values for action sequences and an equilibrium-refining network to identify Nash equilibria, predicting common trajectories and optimizing control scenarios to ensure rational behavior among agents, incorporating game-theoretic principles for decision-making.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If game-theoretic methods are used to predict common trajectories of multiple hardware agents, then the accuracy of predicting rational behavior is improved, but the computational complexity and processing time increase

Engineering Contradiction:
Improveprediction accuracyVSAvoidcomputational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system segments the complex multi-agent prediction problem into two distinct neural networks: a preference-ascertaining network that determines potential function values, and an equilibrium-refining network that identifies Nash equilibria. This segmentation allows each network to specialize in a specific aspect of the prediction task, improving overall accuracy while managing computational complexity through functional decomposition.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The preference-ascertaining network performs preliminary action by determining potential function values for action sequences before the equilibrium-refining network identifies the final Nash equilibria. This preliminary computation of preference information structures the input for the second network, enabling more efficient convergence to the solution and reducing the overall computational burden.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If game-theoretic methods are used to predict common trajectories of multiple hardware agents, then the accuracy of predicting rational behavior is improved, but the processing time increases

Engineering Contradiction:
Improveprediction accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system segments the complex multi-agent prediction problem into two distinct neural networks: a preference-ascertaining network that determines potential function values, and an equilibrium-refining network that identifies Nash equilibria. This segmentation allows each network to specialize in a specific aspect of the prediction task, improving overall accuracy while managing computational complexity through functional decomposition.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The preference-ascertaining network performs preliminary action by determining potential function values for action sequences before the equilibrium-refining network identifies the final Nash equilibria. This preliminary computation of preference information structures the input for the second network, enabling more efficient convergence to the solution and reducing the overall computational burden.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If two neural networks are used to ascertain potential functions and control scenarios, then the prediction accuracy for multi-agent behavior is improved, but the device complexity increases

Engineering Contradiction:
Improveprediction accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system segments the complex multi-agent prediction problem into two distinct neural networks: a preference-ascertaining network that determines potential function values, and an equilibrium-refining network that identifies Nash equilibria. This segmentation allows each network to specialize in a specific aspect of the prediction task, improving overall accuracy while managing computational complexity through functional decomposition.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Both neural networks operate within a unified framework that handles multiple hardware agents and various control scenarios simultaneously. The preference-ascertaining network and equilibrium-refining network work together as a multi-functional system that can predict common trajectories for any number of agents, reducing the need for separate specialized systems for each agent or scenario type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12145612B2Device and method for controlling a hardware agent in a control situation having a plurality of hardware agents
Publication Date: 2024.11.19 ROBERT BOSCH GMBH
  • US12145612B2 patent drawing
  • US12145612B2 patent drawing
  • US12145612B2 patent drawing

AI summary

A device and method for controlling a hardware agent in a control situation having a plurality of hardware agents. The method includes ascertaining of a potential function by a first neural network; ascertaining of a control scenario for a control situation from a plurality of possible control scenarios by a second neural network; ascertaining a common action sequence for the plurality of hardware agents by seeking an optimum of the ascertained potential function over the possible common action sequences of the ascertained control scenario; and controlling at least one of the plurality of hardware agents in accordance with the ascertained common action sequence.