Automated Driving Control Unit for Intuitive Route Changes

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Solution Overview

Problem

Conventional driving assistance devices require manual intervention or route resetting when a vehicle occupant wants to deviate from a pre-set route, which can be unsafe and inconvenient, especially if the occupant is in a hurry.

Innovation Solution

A driving assistance device that includes a surrounding environmental information acquisition unit and an automated driving control unit, which detects the occupant's intention to turn right or left through a turn signal or steering operation, allowing for immediate route changes without manual intervention, by selecting the nearest or highest-priority route candidate based on stored route change information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automated driving control is implemented along a pre-set route, then automated driving capability is improved, but route flexibility and ease of operation deteriorate

Engineering Contradiction:
Improveautomated driving capabilityVSAvoidroute change operation
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The automated driving control unit automatically changes the route based on the detected turning intention signal from the occupant, without requiring manual route resetting or switching to manual driving. The system serves itself by interpreting the occupant's simple turn signal input and autonomously recalculating and executing the new route, thereby maintaining automated driving while enabling easy route changes.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If manual intervention is required for route changes, then route change precision is improved, but response time and ease of operation deteriorate

Engineering Contradiction:
Improveroute change accuracyVSAvoidroute change response time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system detects the occupant's turning intention in advance through the turn signal operation or steering input, and the automated driving control unit prepares and executes the route change immediately upon detection. This preliminary detection and automatic execution mechanism eliminates the time delay associated with manual route resetting operations while maintaining accurate route changes based on the detected intention.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If automated driving is released for route changes, then route flexibility is improved, but safety and ease of operation deteriorate

Engineering Contradiction:
Improveroute flexibilityVSAvoiddriving safety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The automated driving control unit is designed to perform multiple functions: it maintains automated driving control along the pre-set route and simultaneously handles route changes based on occupant intention. This multi-functionality allows the system to provide both route flexibility (by accepting turn signals for route changes) and safety (by maintaining automated control without requiring switching to manual driving), eliminating the need to release automated driving for route modifications.

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

Data Source

PatentUS9898006B2Drive assist device
Publication Date: 2018.02.20 HONDA MOTOR CO LTD
  • US9898006B2 patent drawing
  • US9898006B2 patent drawing
  • US9898006B2 patent drawing

AI summary

An automatic drive control unit implements automatic drive of a vehicle along a pre-set path without operation by a passenger while making decisions about the peripheral situation on the basis of vehicle peripheral environment information recognized by a peripheral environment information detection unit and a peripheral environment recognition unit. When the passenger's intention to make a right or left turn for changing to another path from the pre-set path is detected by a right or left turn intention input unit and a right or left turn intention detection unit, the automatic drive control unit continues the automatic drive while changing the path in a direction indicated by the right or left turn intention.