Vehicle Driving Control System Adapted to Current Trip Preferences

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Solution Overview

Problem

Existing driving control systems for vehicles that switch between manual and automated driving often apply outdated driving characteristics learned during previous manual driving sessions, leading to automated driving that does not align with the occupant's current preferences.

Innovation Solution

A driving control method and apparatus that compares the occupant's current manual driving characteristics with stored reference characteristics and adjusts automated driving settings to match the desired characteristics for the present trip, using data from the vehicle's running state and environmental conditions to ensure alignment with the occupant's intentions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the driving control apparatus uses driving characteristics learnt during past manual driving for automated driving, then automated driving can be executed with learned driving patterns, but the automated driving may not align with the occupant's current desired driving characteristics

Engineering Contradiction:
Improveautomated driving executionVSAvoidalignment with occupant's current preferences
Core Design Contradiction:
Extent of automationVSAdaptability or versatility

Solution Approach 1:

The system dynamically switches between using past learned driving characteristics and current manual driving characteristics based on the automated driving execution flag. When automated driving is executed, the system determines whether to apply historically learned characteristics or real-time manually operated characteristics, making the system adaptable to the occupant's current intentions while maintaining automated driving functionality

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of driving characteristics being applied by setting different values for the automated driving execution flag. When the flag indicates automated driving execution, the system switches from using past learned characteristics to using current manual driving characteristics, thereby adapting to the occupant's present preferences

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the driving control apparatus continuously learns and updates driving characteristics during manual driving, then the system can adapt to changing occupant preferences, but there is a risk of using outdated or inconsistent characteristics during automated driving

Engineering Contradiction:
Improveadaptation to changing preferencesVSAvoidconsistency of driving characteristics
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary determination of whether to execute automated driving before applying driving characteristics. By setting the automated driving execution flag in advance and determining characteristic application based on this flag, the system ensures consistent and reliable characteristic application rather than using potentially outdated continuously updated characteristics

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3778333B1Driving control method and driving control apparatus
Publication Date: 2021.11.17 NISSAN MOTOR CO LTD
  • EP3778333B1 patent drawingFigure 1
  • EP3778333B1 patent drawingFigure 2
  • EP3778333B1 patent drawingFigure 3

AI summary

A driving control method compares, in a vehicle capable of switching manual driving to run the vehicle according to driving operations of an occupant and automated driving to automatically run the vehicle from one to another, occupant's driving characteristics of manual driving in a present trip of the vehicle with reference driving characteristics stored in advance, and if a predetermined deviation occurs between the occupant's driving characteristics of manual driving in the present trip and the reference driving characteristics, sets driving characteristics applied to the automated driving according to the occupant's driving characteristics of manual driving in the present trip.