Driving Assistance Voice Approval by Road Risk and Driver State

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing driving assistance systems frequently require drivers to perform approval operations, which can be burdensome and reduce safety by increasing driver load, as they often need to confirm voice recognition contents for moving control processes, even in environments where it is not necessary.

Innovation Solution

A driving assistance apparatus that determines whether to request a driver's approval based on specific road environments and driver states, reducing unnecessary approval requests by assessing conditions such as road types and driver attentiveness to ensure safe execution of voice operation processes without requiring explicit approval in non-critical situations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the system frequently requests driver approval for voice operation processes, then vehicle safety is ensured through driver confirmation, but driver burden increases and safety is reduced due to increased driver load

Engineering Contradiction:
Improvevehicle safetyVSAvoiddriver burden
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system applies different approval request policies to different driving situations. High-risk scenarios (adverse weather, complex road conditions, driver fatigue) trigger approval requests, while low-risk scenarios do not. This localized application of safety protocols reduces unnecessary driver burden while maintaining safety where critical.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts the approval request frequency based on changing driving conditions and driver states. By monitoring parameters such as weather conditions, road complexity, and driver attentiveness, the system adapts its safety protocol intensity, reducing approval requests when conditions permit while maintaining them when necessary.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the system requests approval operation for all voice operation processes, then moving safety is ensured, but the frequency of approval requests increases causing driver burden

Engineering Contradiction:
Improvemoving safetyVSAvoidapproval operation frequency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system selectively applies approval requests only to voice operations occurring in high-risk contexts rather than universally. By identifying specific combinations of road conditions, weather, and driver state that constitute high-risk scenarios, the system localizes safety interventions to where they are most needed, reducing overall approval frequency.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system implements partial approval monitoring by focusing safety checks on critical voice operations during high-risk periods while allowing more autonomous operation during low-risk periods. This partial application of safety protocols balances safety assurance with operational efficiency.

Inventive Principle:
Principle #16Partial or excessive action

3Ease of operation

If the system executes voice operation process without approval operation, then driver burden is reduced, but moving safety cannot be ensured in certain road environments or driver states

Engineering Contradiction:
Improvedriver burdenVSAvoidmoving safety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system allows autonomous voice operation execution in low-risk environments while requiring approval in high-risk scenarios. By locally assessing risk based on road conditions, weather, and driver state, the system permits burden reduction where safe while maintaining safety protocols where critical.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically changes the autonomy level of voice operation execution based on real-time parameter assessment. When monitored parameters indicate safe conditions, the system permits execution without approval; when parameters indicate risk, the system requires approval or prevents execution, thus adapting safety levels to actual conditions.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240051566A1Driving assistance apparatus, driving assistance method, and computer-readable storage medium storing driving assistance program
Publication Date: 2024.02.15 TOYOTA JIDOSHA KK
  • US20240051566A1 patent drawing
  • US20240051566A1 patent drawing
  • US20240051566A1 patent drawing

AI summary

A driving assistance apparatus executes a moving control to autonomously control a moving of a vehicle. The apparatus informs a driver of contents of a voice operation process planned to be executed for the moving control in accordance with utterance contents of the driver acquired by voice recognition and requests the driver to perform an approval operation to approve the informed contents. The apparatus executes the voice operation process when the approval operation is performed. The apparatus determines whether to request the driver to perform the approval operation, based on whether a road environment of a road on which the vehicle moves.