Automatic Drive Control Device Attention Guidance for Mode Switching

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing automatic drive control devices do not adequately ensure driver attentiveness when switching from automatic driving to manual driving, as they do not account for the driver's state of readiness, leading to potential safety risks due to declining attentiveness.

Innovation Solution

An automatic drive control device with a peripheral situation recognition section, an information notification section, and an automatic drive control section that provides enhanced driving support by recognizing peripheral situations and notifying the driver through attention-calling mechanisms, ensuring safe switching from automatic to manual driving mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the system switches to manual driving upon detecting driver touch on steering wheel, then the switching response speed is improved, but the driver safety is worsened due to potential inattentive state

Engineering Contradiction:
Improveswitching response speedVSAvoiddriver safety
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The system performs preliminary actions by providing visual attention guidance before the driver needs to take over control. The attention guidance display shows information about peripheral situations (pedestrians, vehicles, obstacles) in advance, allowing the driver to mentally prepare and assess the situation before manual driving becomes necessary, thus bridging the attention gap during mode transition

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The attention guidance display acts as an intermediary between the automatic driving system and the driver. It mediates the transition by providing synthesized visual information about the peripheral situation, helping the driver re-engage with the driving context without requiring immediate full attention, thus safely bridging the gap during mode switching

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the system provides continuous attention guidance during manual driving, then the driver attentiveness is improved, but the information notification complexity increases

Engineering Contradiction:
Improvedriver attentivenessVSAvoidinformation notification complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system applies local quality by providing attention guidance selectively rather than continuously. The guidance is activated specifically when mode switching from automatic to manual driving is detected, and is localized to relevant peripheral situations (pedestrians, vehicles, obstacles) rather than providing all possible information, thus maintaining simplicity while improving attentiveness when needed

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system uses partial action by providing only the necessary attention guidance information during mode transition, rather than continuous comprehensive notifications. The attention guidance displays selected peripheral objects that are most relevant to current driving safety, avoiding information overload while ensuring driver awareness during the critical transition period

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS10717437B2Automatic drive control device and automatic drive control method
Publication Date: 2020.07.21 HITACHI LTD
  • US10717437B2 patent drawing
  • US10717437B2 patent drawing
  • US10717437B2 patent drawing

AI summary

With conventional automatic drive control, no consideration is given to whether the driver is in a condition to be able to drive the vehicle properly when automatic driving is cancelled. Accordingly, an automatic drive control device is switchable between a manual driving mode in which driving operation by the driver of the vehicle is required, and an automatic driving mode in which driving operation by the driver of the vehicle is not required. The device is equipped with: a surrounding conditions recognition unit for recognizing surrounding conditions of the vehicle; an information notification unit for notifying the driver of the vehicle; and an automatic drive control unit for carrying out control of the vehicle in automatic driving mode, and controlling the information notification unit in such a way as to alert the driver of the vehicle on the basis of the surrounding conditions recognized by the surrounding conditions recognition unit.