Map-Supported Automatic Driving Control Mode Adjustment

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Solution Overview

Problem

Current map-supported adaptive cruise control systems do not adequately consider ride comfort and stability for drivers and passengers, nor do they effectively handle system failures due to differences between map information and actual driving situations, particularly in dangerous scenarios such as unstable GPS reception or driver override.

Innovation Solution

An apparatus and method that dynamically adjust the operation mode of a map-supported automatic driving system between limited, normal, and emergency operations based on driving situations, using a combination of vehicle sensors and navigation devices to ensure safe control, with alert messages and control releases in hazardous situations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If map-supported ACC uses road information for speed control, then speed limit observation accuracy is improved, but system reliability deteriorates in dangerous situations such as unstable GPS reception or driver override

Engineering Contradiction:
Improvespeed limit observation accuracyVSAvoidsystem reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The system dynamically adjusts its operation mode based on detected driving situations. When dangerous situations are detected (such as unstable GPS reception or driver override), the system transitions from normal operation to limited operation, dynamically changing its control behavior to maintain safety while preserving core functionality.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters based on detected conditions. In limited operation mode, the system modifies speed control parameters to prevent dangerous maneuvers while maintaining basic cruise control functionality, allowing the system to adapt its behavior to match the reliability of available information.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If map-supported ACC provides comprehensive speed control based on road information, then driving safety is improved, but device complexity increases due to multiple operation modes

Engineering Contradiction:
Improvedriving safetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control system is segmented into distinct operation modes (normal operation and limited operation). Each mode has clearly defined control parameters and decision logic, making the overall complex system manageable through modular design where each segment handles specific driving scenarios.

Inventive Principle:
Principle #1Segmentation

3Reliability

If the system responds to dangerous situations by releasing automatic driving control, then driver safety is improved, but ease of operation deteriorates due to frequent control interruptions

Engineering Contradiction:
Improvedriver safetyVSAvoidcontrol continuity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

Instead of completely releasing automatic driving control in all dangerous situations, the system applies partial action by maintaining limited operation mode. This allows the automatic driving system to continue functioning with restricted capabilities, providing safety improvements while avoiding complete control interruption and maintaining ease of operation.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS9216746B2Apparatus and method of controlling automatic driving of vehicle
Publication Date: 2015.12.22 HYUNDAI MOBIS CO LTD
  • US9216746B2 patent drawing
  • US9216746B2 patent drawing
  • US9216746B2 patent drawing

AI summary

Provided are an apparatus and a method of controlling automatic driving of a vehicle, which adjust an operation mode of a map-supported system to a limited operation, a normal operation, and an emergent operation according to a driving situation for a safe operation of a map-supported driving assistance or automatic driving system.