Automatic Driving Assist Activation via Driver State

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Solution Overview

Problem

Conventional advanced driver assist systems (ADAS) require driver input for activation, limiting their automatic operation in situations where collision or lane deviation risks are present, and do not account for the driver's state, leading to potential safety and convenience issues.

Innovation Solution

An apparatus and method that utilize a sensing device to gather vehicle and driver information, determining automatic activation conditions for driving assist functions such as Smart Cruise Control, Forward Collision Warning, Lane Keeping Assist, and Lane Departure Warning, which can activate or deactivate these functions based on driver state, collision risk, lane deviation, and road conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If driver input is required for activation, then system reliability is improved, but ease of operation deteriorates and productivity decreases

Engineering Contradiction:
Improvesystem reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system automatically activates driving assist functions by monitoring driver state and surrounding environment conditions without requiring manual driver input. The controller determines activation based on detected careless driver state combined with collision risk or lane deviation risk, enabling the system to serve itself by autonomously deciding when assist functions are needed.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes the activation parameter from manual driver input to automated detection of driver state parameters (careless state) combined with environmental parameters (collision risk, lane deviation risk). This parameter transformation allows automatic activation while maintaining safety through multi-condition verification.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If driver input is required for activation, then device complexity is reduced, but productivity deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidproductivity
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The sensing device performs multiple functions: detecting driver state (careless state), detecting surrounding environment (collision risk, lane deviation risk), and providing input for automatic activation decisions. This multi-functionality reduces the need for separate activation mechanisms while improving system responsiveness.

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

Solution Approach 2:

The system continuously monitors driver state and surrounding conditions in advance to determine when activation conditions are met. By performing preliminary detection and evaluation, the system can automatically activate assist functions before critical situations develop, improving productivity without adding complex activation hardware.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If automatic activation is implemented, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The controller acts as an intermediary that processes information from the sensing device about driver state and surrounding conditions, then makes activation decisions. This intermediary layer manages the complexity of automatic activation logic while keeping the user interface simple, as the controller translates multiple sensor inputs into automatic activation commands.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Device complexity

If driver state is not considered, then device complexity is reduced, but reliability deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidreliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system dynamically adjusts activation behavior based on real-time driver state detection. When the driver is detected in a careless state, the system becomes more proactive in activating assist functions. This dynamic adaptation improves reliability by matching system responsiveness to actual driver needs without requiring complex predefined rules for every scenario.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11001274B2Apparatus and method for automatically controlling driving assist function of vehicle
Publication Date: 2021.05.11 HYUNDAI MOTOR CO LTD
  • US11001274B2 patent drawing
  • US11001274B2 patent drawing
  • US11001274B2 patent drawing

AI summary

An apparatus for automatically controlling a driving assist function of a vehicle includes a sensing device to sense surrounding information and driving information of the vehicle and a state of a driver, a controller to determine whether an automatic activation condition for automatically activating the driving assist function is satisfied, based on the surrounding information and the driving information of the vehicle, which are acquired from the sensing device, and the sensed driver state, and automatically activate the driving assist function when the automatic activation condition is satisfied.