Autonomous Vehicle Control Combining AI and Rule-Based Driving

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Solution Overview

Problem

Existing automatic driving technologies rely on machine learning and artificial intelligence for vehicle control, which can fail to predict accurately, leading to safety concerns and difficulties in ensuring compliance with traffic rules and driving morals.

Innovation Solution

An automatic driving device that combines a dynamically changing algorithm using machine learning or artificial intelligence with a prescribed algorithm based on traffic rules and driving morals, ensuring safety and compliance by dynamically adjusting vehicle control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If machine learning or artificial intelligence is used for vehicle control, then adaptability and natural automatic driving are improved, but reliability deteriorates due to prediction failures

Engineering Contradiction:
ImproveadaptabilityVSAvoidreliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent combines machine learning algorithms with prescribed algorithms (traffic rules and driving morals) into a unified control system. The ECU executes both types of algorithms simultaneously, allowing the system to leverage the adaptability of machine learning while maintaining the reliability of rule-based control, thereby resolving the contradiction between adaptability and reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent applies different algorithm types to different control aspects: machine learning is used for aspects requiring adaptability and natural driving behavior, while prescribed algorithms are used for safety-critical and rule-based aspects. This localized application of different algorithm qualities ensures reliability where needed while maintaining adaptability where beneficial

Inventive Principle:
Principle #3Local quality

2Reliability

If prescribed algorithm is used for vehicle control, then reliability is improved, but adaptability deteriorates

Engineering Contradiction:
ImprovereliabilityVSAvoidadaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system merges prescribed algorithms with machine learning algorithms, allowing the prescribed algorithm to ensure reliability through rule-based control while the machine learning component provides adaptability for natural and flexible driving behavior, resolving the contradiction between reliability and adaptability

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3498555B1Automatic driving device
Publication Date: 2026.03.11 ASTEMO LTD
  • EP3498555B1 patent drawingFigure 1
  • EP3498555B1 patent drawingFigure 2
  • EP3498555B1 patent drawingFigure 3

AI summary

Achieving safety and natural automatic driving needs a control platform using intelligence (such as learning function and artificial intelligence), but it is difficult to ensure operations suited for the behavior of a vehicle by the output of intelligence. An automatic driving device according to the present invention includes a control program for inputting outside information and vehicle information, and outputting a target control value for a vehicle. The control program has a first program for generating a first target control amount on the basis of a dynamically changing algorithm (which outputs operations based on learning function or artificial intelligence), and a second program for generating a second target control amount on the basis of a prescribed algorithm (which outputs operations according to traffic rules or driving morals).