Driver Distance Monitoring for Standing Vehicle Stop Control

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Solution Overview

Problem

Drivers operating vehicles in a standing posture may fall due to vehicle swaying while traveling, potentially rendering the vehicle inoperable.

Innovation Solution

A safety apparatus mounted on a manual driving apparatus, equipped with a distance sensor to measure the distance between the apparatus and the driver, and transmits a deceleration stop request when the measured distance exceeds a threshold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a driver operates the vehicle in a standing posture, then the ease of operation is improved, but the reliability deteriorates due to the risk of falling over from vehicle swaying

Engineering Contradiction:
Improveease of operationVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary detection of driver presence and position using sensors before an accident can occur. The distance sensor continuously monitors the driver's position relative to the driving apparatus, and the system is ready to execute emergency stopping before the driver actually falls, thus maintaining reliability while enabling standing posture operation

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback by monitoring the distance between the driver and the driving apparatus. When the distance exceeds a predetermined threshold, indicating the driver may have fallen, the system automatically triggers emergency stopping. This closed-loop feedback mechanism ensures reliability is maintained without compromising the ease of standing posture operation

Inventive Principle:
Principle #23Feedback

2Reliability

If the vehicle is equipped with a distance sensor and automatic deceleration system, then the reliability is improved, but the device complexity increases

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical monitoring mechanisms with electronic sensors and control systems. Instead of mechanical switches or physical contact sensors, the patent uses distance sensors (optical or electromagnetic) to detect driver position, and electronic control to trigger braking, thereby achieving high reliability with relatively simple device architecture

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables the vehicle to monitor its own operating conditions and automatically take corrective action. The distance sensor continuously self-monitors driver presence, and the control system automatically executes emergency stopping when needed, without requiring external intervention or complex manual safety systems

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The safety apparatus effectively prevents accidents by ensuring the vehicle can be decelerated to a stop even if the driver falls, thereby improving the safety of driving a vehicle in a standing posture.

Implementation Method 1

measure, using a distance sensor, a distance between the manual driving apparatus and a driver operating the manual driving apparatus

Methodology Applied
Scientific EffectDistance measurement:

Data Source

PatentUS20250187596A1Safety apparatus and control method
Publication Date: 2025.06.12 TOYOTA JIDOSHA KK
  • US20250187596A1 patent drawing
  • US20250187596A1 patent drawing
  • US20250187596A1 patent drawing

AI summary

A safety apparatus includes a controller configured to measure, using a distance sensor, a distance between a manual driving apparatus and a driver operating the manual driving apparatus while a vehicle is traveling, and transmit a deceleration stop request to the manual driving apparatus when the measured distance exceeds a threshold.