Driver-Assistance System Voice Intention Coordination

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Solution Overview

Problem

Existing driver-assistance systems fail to effectively assist driving by reflecting the intention of the driver on the receiving side, as they do not adequately account for the intentions and actions of both transmitting and receiving vehicles during communication.

Innovation Solution

A driver-assistance system that includes processors in both vehicles to estimate driving intentions from voice data, transmit and receive request information, and generate assistance information to facilitate smooth and safe driving by recommending actions based on the intentions and surrounding conditions of both vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a driver-assistance system transmits driver's intention information to another vehicle and drives according to the intention, then the driving coordination between vehicles is improved, but the system fails to adequately assist the driver on the receiving side who may have conflicting intentions

Engineering Contradiction:
Improvedriving coordinationVSAvoidhandling conflicting intentions
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system introduces a feedback mechanism where the receiving vehicle's processor estimates its own driving intention from voice data and feeds this information back to the transmitting vehicle. This allows both vehicles to be aware of each other's intentions, enabling the system to mediate and coordinate actions when intentions conflict, thereby maintaining reliability while adapting to conflicting scenarios.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The receiving vehicle's processor acts as an intermediary by not only receiving intention information but also independently estimating its own intention and providing this information back to the transmitting vehicle. This intermediary role enables conflict resolution through mutual awareness and coordinated decision-making, allowing the system to handle conflicting intentions effectively.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the system only considers the transmitting vehicle's intention, then the system complexity is reduced, but the assistance quality for the receiving vehicle driver deteriorates

Engineering Contradiction:
Improvesystem structureVSAvoidassistance quality
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The receiving vehicle's processor is designed to perform multiple functions: receiving intention information from other vehicles, independently estimating its own driving intention from voice data, and transmitting this information back to the transmitting vehicle. This multi-functionality enables comprehensive assistance for both transmitting and receiving drivers without requiring separate dedicated systems, thus maintaining reasonable complexity while improving assistance quality.

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

3Measurement precision

If the system processes voice data from both vehicles to estimate intentions, then the accuracy of driving assistance is improved, but the information processing time and computational load increase

Engineering Contradiction:
Improveintention estimation accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The receiving vehicle's processor continuously estimates the driver's intention from voice data in advance, before receiving external intention information. This preliminary action ensures that when intention information is exchanged between vehicles, both parties already have current understanding of each other's intentions, reducing the need for lengthy processing during critical decision-making moments and improving response time.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11462103B2Driver-assistance device, driver-assistance system, and driver-assistance program
Publication Date: 2022.10.04 TOYOTA JIDOSHA KK
  • US11462103B2 patent drawing
  • US11462103B2 patent drawing
  • US11462103B2 patent drawing

AI summary

A driver-assistance device includes a processor having hardware, in which the processor estimates intention related to a drive of a vehicle provided with the processor from input voice data; generates first intention information based on the estimation; transmits the first intention information to outside; and generates and outputs assistance information, which is for assisting the drive of the vehicle provided with the processor based on the first intention information estimated by the processor and second intention information which is intention related to a drive of another vehicle that receives the first intention information transmitted to the outside, the second intention information being estimated by another processor provided in the another vehicle.