Autonomous Lane Change Schedule Presentation for Occupant Trust

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Solution Overview

Problem

In autonomous driving systems, continuous automatic lane changes can cause anxiety for occupants as they are difficult to distinguish from normal control behaviors, leading to uncertainty and anxiety for drivers when multiple lane changes occur without their monitoring.

Innovation Solution

A presentation control device and program that grasp the plan of automatic lane changes and notify occupants of the execution schedule, allowing them to recognize the behavior as under normal control, and optionally request driver intervention by setting wider intervals between lane changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple automatic lane changes are executed without notification, then the autonomous driving function operates efficiently, but occupant anxiety increases due to lack of transparency

Engineering Contradiction:

Improveautonomous driving efficiencyVSAvoidoccupant anxiety

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary notification to the occupant before executing automatic lane changes. The notification is displayed in advance to inform the occupant of the upcoming lane change, reducing anxiety while maintaining autonomous operation efficiency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides feedback to the occupant about the autonomous driving system's intentions through notifications. This feedback loop allows the occupant to understand and anticipate lane change actions, reducing uncertainty and anxiety while the system maintains its autonomous efficiency.

Inventive Principle:

Principle #23Feedback

2Productivity

If lane changes are executed frequently to optimize routing, then productivity improves, but occupant trust decreases due to perceived abnormal behavior

Engineering Contradiction:

Improverouting optimizationVSAvoidoccupant trust

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system notifies the occupant in advance before executing lane changes, even when multiple lane changes are planned. This preliminary notification helps the occupant understand the system's routing optimization decisions, maintaining trust while allowing frequent lane changes for productivity.

Inventive Principle:

Principle #10Preliminary action

3Extent of automation

If the system operates without driver monitoring, then automation level increases, but safety perception decreases when unusual patterns occur

Engineering Contradiction:

Improvedriver monitoring requirementVSAvoidsafety perception

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

The system provides feedback notifications to the occupant about its autonomous operations and intentions. This feedback mechanism maintains high automation levels by not requiring driver monitoring, while simultaneously improving safety perception by keeping the occupant informed about system actions.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20240375674A1Presentation control device, automatic driving control device, and storage medium storing program

Publication Date: 2024.11.14 DENSO CORP

AI summary

A presentation control device is used in a subject vehicle capable of traveling by autonomous travel control and controls presentation of information related to the autonomous travel control. The presentation control device is configured to grasp a plan of automatic lane change made by the autonomous travel control and, when a plurality of times of lane change are planned within a predetermined section or within a predetermined time, notify of an execution plan of the plurality of times of the automatic lane change in accordance with a first automatic lane change.