Driver Attention Assist for Rear-End Collision Prevention

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Solution Overview

Problem

Conventional driver assist systems require manual activation by the driver and fail to provide assistance during rear-end collisions when the driver is distracted, leading to potential accidents due to last-minute interventions that can be dangerous to other vehicles and cause driver discomfort.

Innovation Solution

An automatic driver assist system that uses sensors to detect driver attention levels and external environment data to activate vehicle drive assist components, such as maintaining current speed and preventing acceleration when the driver is not focused on the road, without requiring driver activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional driver assist systems are activated manually by the driver, then the system can provide assistance when needed, but the system fails to provide assistance when the driver is distracted and cannot activate it

Engineering Contradiction:
Improvecollision avoidance capabilityVSAvoidautomatic activation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system automatically detects driver distraction states and activates assistive behaviors without requiring manual driver input. The driver monitoring system continuously assesses driver attention and autonomously engages safety features when distraction is detected, making the system self-activating rather than requiring manual operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors driver state through sensors and uses this feedback to dynamically activate or deactivate assistive behaviors. The closed-loop feedback mechanism allows the system to respond to real-time driver distraction levels and adjust safety interventions accordingly.

Inventive Principle:
Principle #23Feedback

2Reliability

If active safety systems intervene at the last moment to avoid collision, then collision avoidance is achieved, but other vehicles must respond to last-minute actions causing danger, and the driver experiences discomfort and stress

Engineering Contradiction:
Improvecollision avoidanceVSAvoiddanger to other vehicles and driver stress
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system detects driver distraction early and activates assistive behaviors before a collision imminently threatens. By maintaining current speed and preventing acceleration during distraction, the system proactively prevents collision scenarios from developing, rather than reacting at the last moment when other vehicles would need to respond urgently.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20230271604A1Automatic driver assist system for a vehicle
Publication Date: 2023.08.31 NISSAN NORTH AMERICA INC
  • US20230271604A1 patent drawing
  • US20230271604A1 patent drawing
  • US20230271604A1 patent drawing

AI summary

An automatic driver assist system for a vehicle comprising a first sensor, a second sensor, and a controller. The first sensor is configured to detect driver data relating to a current state of a driver of the vehicle. The second sensor is configured to detect external environment data relating to an external environment of the vehicle. The controller is configured to activate one of a plurality of vehicle drive assist system components based on the driver data and on the external environment data.