Driver Assistance Guidance Based on Driving Load Timing

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Solution Overview

Problem

Vehicle users may not know how to operate driving assistance functions even if they are executable, and presenting operation methods uniformly can be inappropriate.

Innovation Solution

An assistance function presentation device that acquires surrounding environment information, determines the driver's load situation, and presents operation methods for driving assistance functions only when the situation is not high-load, using visual and auditory cues to guide the driver appropriately.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If operation method is presented uniformly to all drivers, then all drivers receive information about driving assistance function operation, but drivers in high-load situations may be distracted from driving operations

Engineering Contradiction:
Improveinformation delivery to driverVSAvoiddriver distraction
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts the presentation of operation methods based on the driver's current load situation. When the driver is in a high-load situation, the system suppresses or delays presentation of operation methods. When the driver is in a low-load situation, the system presents operation methods. This dynamic adaptation resolves the contradiction by making the information delivery conditional on the driver's current state, thereby preventing distraction while ensuring information is delivered when appropriate.

Inventive Principle:
Principle #15Dynamics

2Loss of information

If operation method is presented only when driving assistance function is available, then information is presented, but driver may still be in high-load situation requiring concentration on driving

Engineering Contradiction:
Improveoperation method informationVSAvoiddriver attention to driving
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The system introduces an additional dynamic condition (driver load situation) to the presentation logic. The presentation control unit monitors both the availability of the driving assistance function and the driver's load situation, and only presents operation methods when both conditions are favorable (function available AND driver not in high-load situation). This resolves the contradiction by adding a contextual layer to information delivery that protects driver attention while ensuring operational information is provided when safe to do so.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If operation method is not presented in high-load situations, then driver distraction is reduced, but drivers may not learn how to operate the driving assistance function

Engineering Contradiction:
Improvedriver distractionVSAvoidoperation method knowledge
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The system performs preliminary assessment of the driver's load situation before presenting operation methods. By evaluating the current driving context and driver state in advance, the system determines the appropriate timing for information delivery. This preliminary action ensures that operation methods are presented only when the driver is in a suitable state to receive and process the information, thereby preventing distraction while still enabling learning over time through repeated opportunities during low-load periods.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20260015003A1Assistance function presentation device
Publication Date: 2026.01.15 TOYOTA JIDOSHA KK
  • US20260015003A1 patent drawing
  • US20260015003A1 patent drawing
  • US20260015003A1 patent drawing

AI summary

An assistance function presentation device presents an operation method for a driving assistance function of a host vehicle. The assistance function presentation device includes: an information acquisition unit configured to acquire surrounding environment information of the host vehicle; a situation determination unit configured to determine whether or not a driver of the host vehicle is in a high-load situation in which a load on driving operations is high; and a presentation control unit configured to present the operation method to the driver when the driving assistance function is available or in operation and it is determined by the situation determination unit that a current situation is not the high-load situation.