Vehicle Stop Control Device with State Display Feedback
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Solution Overview
Problem
Existing automatic stop control devices for vehicles struggle to clearly communicate activation and cancellation timing to drivers, leading to confusion, especially in emergency situations where drivers are unable to operate due to health issues, potentially causing secondary disasters.
Innovation Solution
A stop control device that includes a stop intention detector, an unable-to-drive state detector, a stop controller, and a state display unit to show information on activation or cancellation of automatic stop control, deceleration speeds, and required operations, using a processor to communicate with onboard devices to manage vehicle deceleration and display necessary information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic stop control is activated based on detection of stop intention or unable-to-drive state, then vehicle safety is improved, but driver confusion increases due to lack of clear information display
Solution Approach 1:
The system provides real-time feedback to the driver through a display device that shows the current state of automatic stop control (activated, deactivated, or canceling). This feedback mechanism resolves the contradiction by maintaining high safety through automatic control while improving driver understanding by clearly displaying the system state and required operations.
Solution Approach 2:
A display device acts as an intermediary between the automatic stop control system and the driver. It translates complex system states into clear visual information, allowing the driver to understand when the system is active, when it is canceling, and what operations are needed, thereby reducing confusion while maintaining safety.
2Reliability
If the system requires predetermined driving operation for a predetermined time to cancel automatic stop control, then false activation is prevented, but driver confusion increases due to unclear timing requirements
Solution Approach 1:
The display device continuously shows whether the system is in the canceling state and how much time remains or what operation is needed. This resolves the contradiction by maintaining control accuracy through the predetermined time requirement while preventing information loss by clearly displaying the cancellation progress and requirements to the driver.
3Reliability
If the system uses multiple detection criteria (stop intention switch and unable-to-drive state), then false emergency detection is reduced, but device complexity increases
Solution Approach 1:
The display device serves multiple functions: it shows the current control state, displays required driver operations, and provides timing information for cancellation. This multi-functionality resolves the contradiction by supporting the complex multi-criteria detection system while presenting a unified, simple interface to the driver, effectively managing the perceived complexity.
Data Source
AI summary
A stop control device includes: a stop intention detection unit 170 that detects a stop intention of a driver; an unable-to-drive state detection unit 172 that detects that the driver is in an unable-to-drive state; a stop control unit 176 that performs automatic stop control in which a vehicle is decelerated and stopped, based on whether the stop intention is detected by the stop intention detection unit and/or whether the unable-to-drive state is detected by the unable-to-drive state detection unit; and a state display unit 174 that shows, on a display 144, information on whether it has been determined to activate the automatic stop control, a state of the control, and/or whether it has been determined to cancel the control.