Driving Assistance Timing Adaptation for Driver Comfort

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Solution Overview

Problem

Existing driving assisting apparatuses do not consider a driver's feelings when determining the timing for assisting a stopping operation, leading to discomfort and distrust of the system, especially when the timing based on vehicle characteristics differs from the driver's preferred timing.

Innovation Solution

A driving assisting apparatus that acquires both stoppable conditions and driver characteristics to set a start condition for assisting the driving operation, prioritizing the timing based on the driver's feelings by determining a second timing that may be earlier than the first timing based on stoppable conditions, and using a notification system to alert the driver at the appropriate time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the assistance timing is determined based on stoppable condition (vehicle characteristics), then the vehicle can stop safely at the stop position, but the driver feels discomfort and distrusts the assisting system

Engineering Contradiction:
Improvesafe stoppingVSAvoiddriver comfort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the assistance timing adaptable rather than fixed. The system dynamically adjusts the timing between the first timing (based on stoppable condition) and second timing (based on driver characteristic) according to the running state of the vehicle. This allows the system to flexibly select the most appropriate timing in different situations, resolving the contradiction between safe stopping and driver comfort.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of assistance timing from a single fixed value to a variable range between first timing and second timing. By introducing the driver characteristic as a variable parameter and allowing the system to select timing within this range based on vehicle running state, the patent resolves the contradiction between objective safety requirements and subjective driver preferences.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the assistance timing is determined based on driver characteristic, then the driver feels comfortable, but the vehicle may not stop safely at the stop position

Engineering Contradiction:
Improvedriver comfortVSAvoidsafe stopping
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system dynamically balances driver comfort and safety by adjusting the assistance timing based on vehicle running state. When the vehicle is in a state where early assistance is beneficial, the system leans toward the second timing (driver characteristic). When safety is more critical, it adjusts toward the first timing (stoppable condition), thus dynamically resolving the contradiction.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent uses preliminary action by acquiring driver characteristics in advance and storing them. This allows the system to have the driver's preferred timing ready before assistance is needed, enabling quick and appropriate response while ensuring safety through the comparison with stoppable condition requirements.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If the assistance timing is fixed based on vehicle characteristics, then the system is simple to implement, but it cannot adapt to different driver preferences

Engineering Contradiction:
Improvesystem simplicityVSAvoiddriver preference adaptation
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent segments the assistance timing into two distinct components: first timing based on stoppable condition (vehicle characteristics) and second timing based on driver characteristic. This segmentation allows the system to maintain simplicity in the safety-critical first timing calculation while adding adaptability through the separate driver preference component, resolving the contradiction between simplicity and adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system achieves multi-functionality by making the assistance timing serve dual purposes: ensuring safe stopping (first timing) and accommodating driver preferences (second timing). The start condition setting means acts as a universal controller that can adapt to different drivers while maintaining the core safety function, thus resolving the contradiction between simplicity and adaptability.

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

Data Source

PatentUS8290677B2Driving assisting apparatus
Publication Date: 2012.10.16 TOYOTA JIDOSHA KK
  • US8290677B2 patent drawing
  • US8290677B2 patent drawing
  • US8290677B2 patent drawing

AI summary

A driving assisting apparatus acquires a stoppable condition for allowing a vehicle to stop at a stop position and a driver characteristic concerning a driving operation for stopping the vehicle, and determines whether to determine the condition for starting assisting the driving operation according to the stoppable condition or driver characteristic depending on a running state of the vehicle. This sets the start condition for assisting the driving operation in view of the driver characteristic as well, thus making it possible to assist the driving operation in conformity to the driver's feelings.