Driver Assistance Risk Integration for Blind Spot Vehicle Control

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Solution Overview

Problem

Existing driver assistance technologies fail to consider risks generated by obstacles outside the blind spots, leading to hindered smooth vehicle control.

Innovation Solution

A driver assistance apparatus sets virtual risks between blind spot areas to manage latent risks, generating risk distribution data for smooth driving by integrating apparent, latent, and virtual risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple latent risks are set based on blind spot areas, then collision avoidance capability is improved, but vehicle control smoothness deteriorates due to abrupt changes in speed and steering

Engineering Contradiction:

Improvecollision avoidance capabilityVSAvoidvehicle control smoothness

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent merges multiple discrete latent risks into a single integrated risk representation. When multiple blind spot areas are detected, their risks are combined into one comprehensive risk value that reflects the overall threat level, enabling smooth vehicle control while maintaining collision avoidance capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the parameter representation from multiple discrete risk values to a single integrated risk value. This parameter transformation allows the control system to handle multiple blind spot risks uniformly, preventing abrupt control actions while preserving safety.

Inventive Principle:

Principle #35Parameter changes

2Stability of the object's composition

If virtual risks are set between blind spot areas, then risk distribution smoothness is improved, but calculation complexity increases

Engineering Contradiction:

Improverisk distribution smoothnessVSAvoidcalculation complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent performs preliminary risk integration by calculating a single integrated risk value before control decisions are made. This preliminary action consolidates multiple blind spot risks into one value, smoothing the risk distribution and simplifying subsequent control calculations.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If integrated risk assessment is performed for multiple obstacles, then comprehensive safety is improved, but responsiveness to individual risks deteriorates

Engineering Contradiction:

Improvecomprehensive safetyVSAvoidrisk response speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The patent merges multiple individual obstacle risks into a single integrated risk assessment. This combination provides comprehensive safety coverage while maintaining fast response through unified risk evaluation, avoiding the need to process each obstacle separately.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12509069B2Driver assistance apparatus, vehicle, recording medium storing computer program, and driver assistance method

Publication Date: 2025.12.30 SUBARU CORP

AI summary

A vehicle control system is a system configured to appropriately perform driver assistance such as automatic driving of a vehicle, while reducing risks considering blind spot areas formed by obstacles. In particular, the vehicle control system is configured to set a virtual risk integrated with latent risks generated individually in order to prevent an abrupt change in speed or the like of the own vehicle. Further, even when other risks are generated on a side different from a side on which the blind spot areas are located, the vehicle control system is configured to set the virtual risk having a smaller value than a maximum value of the latent risks to reduce an influence of the virtual risk.