Vehicle Auto Shut-Off Control with Occupancy Detection
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Solution Overview
Problem
Existing vehicle auto shut-off systems cannot be disabled by users, often lead to undesirable shut-offs when occupants are inside, and lack user notification outside the vehicle, resulting in issues like carbon monoxide poisoning and inefficient fuel use.
Innovation Solution
A system that includes sensors to detect vehicle occupancy and idle states, allowing users to set timer-based shut-off options, providing visual and audible warnings, and notifying users both inside and outside the vehicle, with the ability to reset timers and account for software updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the conventional auto shut-off function is applied, then fuel efficiency is improved and exhaust gas is reduced, but undesirable auto shut-off occurs when users ride in the vehicle
Solution Approach 1:
The system performs preliminary actions by detecting user presence through sensors (camera, radar, seat sensors) before executing the shut-off function. It also provides preliminary notification to users before shut-off occurs, allowing them to prevent unwanted shutdown. The system checks multiple conditions (gear position, ignition state, user presence) before activating shut-off, ensuring reliable operation only when appropriate.
2Object-generated harmful factors
If the conventional auto shut-off function is applied, then carbon monoxide emission is reduced, but users cannot disable the function when they do not want shut-off
Solution Approach 1:
The system dynamically adapts its behavior based on real-time conditions. It can be enabled or disabled through user settings, and automatically adjusts whether to shut off based on detected user presence. The notification system allows dynamic user intervention - users can cancel shut-off if they arrive or decide to use the vehicle, providing flexibility while maintaining emission reduction benefits.
3Device complexity
If the existing technology is used, then the system is simple, but users outside the vehicle do not know the vehicle state
Solution Approach 1:
The system implements feedback by notifying users of the upcoming shut-off state through visual and audible warnings. This feedback loop informs users outside the vehicle about the vehicle's state and impending shutdown, allowing them to take appropriate action if needed, while maintaining relatively simple system architecture.
4Loss of energy
If the auto shut-off function shuts off immediately after idle state, then fuel consumption is reduced, but users have no warning time to arrive or use the vehicle
Solution Approach 1:
The system performs preliminary notification actions by warning users before the actual shut-off occurs. This gives users advance notice to arrive at the vehicle or prepare for shutdown, balancing fuel efficiency with user convenience. The notification system activates before the final shut-off command, creating a buffer period for user response.
Data Source
AI summary
A system for automatically controlling shut-off of a vehicle includes: a sensor that senses existence of a user in the vehicle; and a vehicle controlling device that determines whether the vehicle is in an idle state, determines whether a user exists in the vehicle based on a sensing value of the sensor, controls the vehicle to automatically shut off, and notifies a user of a vehicle state.