Vehicle Driving Behavior Prediction Using Speed-Adaptive Templates

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Solution Overview

Problem

Existing vehicle driving behavior prediction systems require multiple templates based on varying traveling states, leading to increased storage capacity needs and manufacturing costs, while maintaining sufficient prediction accuracy.

Innovation Solution

A vehicle driving behavior predicting device that uses traveling state information to convert templates based on entry speed, allowing for prediction of vehicle behavior at a target point by comparing converted templates with current state information, minimizing storage capacity requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple templates are prepared according to different traveling states to improve prediction accuracy, then prediction accuracy is improved, but storage capacity requirements increase

Engineering Contradiction:
Improveprediction accuracyVSAvoidstorage capacity
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

A single template is designed to serve multiple traveling states through parameter conversion. The template includes conversion means that can adapt the template data according to different entry speeds, allowing one template to function for multiple speed conditions rather than requiring separate templates for each state.

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

Solution Approach 2:

The template parameters are made convertible based on entry speed. The conversion means adjusts template parameters according to the actual entry speed of the vehicle, enabling the same template to accurately represent different traveling states through parameter transformation rather than requiring multiple fixed templates.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If multiple templates are prepared according to different traveling states to improve prediction accuracy, then prediction accuracy is improved, but manufacturing cost increases

Engineering Contradiction:
Improveprediction accuracyVSAvoidmanufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

A single template with conversion capability replaces multiple specialized templates, reducing the complexity of system configuration and lowering manufacturing costs. The conversion means is integrated into the template structure, eliminating the need to produce and manage multiple separate templates for different traveling states.

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

Solution Approach 2:

Multiple template functions are merged into a single template through the conversion means. Instead of having separate templates for different entry speeds, the conversion mechanism combines the functionality of multiple templates into one, reducing overall system complexity and manufacturing requirements.

Inventive Principle:
Principle #5Merging (Combining)

3Quantity of substance

If a single template is used for all traveling states to reduce storage capacity, then storage capacity is minimized, but prediction accuracy deteriorates

Engineering Contradiction:
Improvestorage capacityVSAvoidprediction accuracy
Core Design Contradiction:
Quantity of substanceVSMeasurement precision

Solution Approach 1:

The template is made dynamic through the conversion means that adjusts template parameters based on actual entry speed. Instead of a static template that cannot adapt to different traveling states, the conversion mechanism enables real-time parameter adjustment, allowing the single template to maintain accuracy across varying conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The template parameters are designed to be convertible rather than fixed. The conversion means transforms template parameters according to the actual entry speed, enabling a single template to accurately represent different traveling states through parameter transformation, thus maintaining prediction accuracy while minimizing storage requirements.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9428196B2Vehicle driving behavior predicting device
Publication Date: 2016.08.30 TOYOTA JIDOSHA KK
  • US9428196B2 patent drawing
  • US9428196B2 patent drawing
  • US9428196B2 patent drawing

AI summary

A vehicle driving behavior predicting device that predicts a driving behavior of a vehicle at a prediction target point based on speed information or acceleration information of the vehicle includes: a storage unit storing a reference template indicating a transition of the speed information or the acceleration information corresponding to the driving behavior being a prediction target in a predetermined prediction section to the prediction target point; a converting unit converting the reference template to a converted template indicating a transition of a speed or acceleration from an entry speed to a case in which the driving behavior being the prediction target is exhibited based on the entry speed of the vehicle into the prediction section; and a predicting unit predicting the driving behavior at the prediction target point by comparing the converted template with a current transition of the speed information or the acceleration information.