Vehicle Control Adapting Dynamics to Driver Psychophysical State

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Solution Overview

Problem

Existing vehicle control systems fail to effectively enhance driving pleasure and reduce driving fatigue by accurately evaluating and responding to a driver's psychophysical condition, as they struggle with the complexity of determining precise connections between biometric and psychometric sensor parameters and the driver's actual condition.

Innovation Solution

A vehicle control method that uses biometric and psychometric sensors to record and evaluate psychophysical parameters, comparing successive evaluations to adapt the vehicle's dynamic performance to the driver's changing condition, enhancing or reducing responsiveness based on satisfaction, excitement, or relaxation levels, while considering the driving context.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biometric and psychometric sensors are used to evaluate driver psychophysical condition, then driving safety and pleasure can be enhanced, but the complexity of determining precise connections between sensor parameters and actual condition increases significantly

Engineering Contradiction:

Improvedriving safetyVSAvoidevaluation system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a differential evaluation mechanism that compares successive psychophysical evaluations rather than directly mapping sensor parameters to absolute condition states. This intermediary comparison approach simplifies the evaluation complexity while maintaining reliability by focusing on changes in driver state rather than absolute measurements

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system transitions from attempting to determine absolute psychophysical parameters to measuring differential changes between successive evaluations. This parameter transformation approach reduces the complexity of establishing precise connections between sensor data and driver condition while preserving the ability to detect meaningful changes in driver state

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If absolute psychophysical assessments are performed, then comprehensive driver condition evaluation is achieved, but precision and reliability are reduced due to wide individual variations in parameter thresholds

Engineering Contradiction:

Improvedriver condition evaluation comprehensivenessVSAvoidpsychophysical parameter precision

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

Instead of evaluating absolute psychophysical parameters and their thresholds, the patent inverts the approach by evaluating differential changes between successive assessments. This inversion eliminates the need to establish absolute thresholds that vary widely between individuals, thereby improving measurement precision while maintaining comprehensive evaluation capability

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The system performs partial evaluation by focusing only on the differential changes in psychophysical parameters between successive measurements rather than attempting to assess all parameters absolutely. This partial action approach improves precision by concentrating on relative changes that are more consistent across different drivers

Inventive Principle:

Principle #16Partial or excessive action

3Adaptability or versatility

If driver-selected dynamic vehicle performance is provided, then driving style adaptation is improved, but safety is impaired when drivers overestimate their psychophysical condition

Engineering Contradiction:

Improvedriving style adaptationVSAvoiddriving safety

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the system continuously monitors differential changes in driver psychophysical condition and automatically adjusts vehicle dynamic performance accordingly. This feedback loop ensures that vehicle responsiveness is adapted to the driver's actual condition rather than relying solely on driver selection, thereby maintaining safety while preserving adaptability

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system provides self-service by automatically adjusting vehicle dynamics based on detected changes in driver psychophysical state, eliminating the need for drivers to accurately self-assess their condition. The vehicle serves itself by making real-time adaptations based on objective sensor measurements and differential evaluation

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8483909B2Vehicle control method for adapting dynamic vehicle performance to the psychophysical condition of the driver

Publication Date: 2013.07.09 FERRARI SPA

AI summary

A method of controlling a driver-operated vehicle; the method including the steps of:recording the values of a number of psychophysical parameters of the driver over a first measuring interval; making a first evaluation of the driver's psychophysical condition on the basis of the driver's psychophysical parameter values over the first measuring interval; recording the values of the driver's psychophysical parameters over a second measuring interval following the first measuring interval; making a second evaluation of the driver's psychophysical condition on the basis of the driver's psychophysical parameter values over the second measuring interval; comparing the first and second evaluation of the driver's psychophysical condition to determine a change in the driver's psychophysical condition; and modifying the dynamic performance of the vehicle as a function of the driver's psychophysical condition, to adapt dynamic performance of the vehicle to the change in the driver's psychophysical condition.