Vehicle Door Control System Using ID Collation Signals
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Solution Overview
Problem
Existing vehicle control systems face issues with secure automatic door opening based on reservation information, as they often result in unintended door operations due to proximity to the vehicle and incomplete communication cessation.
Innovation Solution
A vehicle control system that includes an in-vehicle device and a portable device, utilizing regular and event collation signals to verify user intention through ID code matching, preventing automatic door opening unless correct collation results are received, thereby ensuring secure and intentional door operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic door opening is enabled based on proximity detection, then user convenience is improved, but unintended door operations occur when user is merely passing by
Solution Approach 1:
The system performs preliminary collation of ID codes between the portable device and in-vehicle device before enabling automatic door opening. This preliminary verification action ensures that only authorized users can trigger automatic door opening, preventing unintended operations while maintaining convenience for legitimate users
Solution Approach 2:
The system uses feedback from collation results to control the automatic door opening function. When collation succeeds, the system feedbacks permission to open doors automatically; when collation fails or communication stops, the feedback revokes this permission. This feedback mechanism ensures reliable control based on actual user intent
2Productivity
If reservation information is stored for automatic door opening, then door opening speed is improved, but communication may not cease completely in close environments
Solution Approach 1:
The system performs preliminary collation and stores reservation information before actual door opening. This preliminary action allows the door to open quickly when conditions are met, while the preliminary communication verification ensures reliability by confirming complete communication cessation in close environments like residences
Solution Approach 2:
The system dynamically adjusts the communication monitoring behavior based on the operational state. During the door opening process, the system continues monitoring communication status to detect when communication has completely ceased, adapting the monitoring duration to ensure reliability without unnecessarily delaying the door opening operation
Data Source
AI summary
A vehicle control system includes an in-vehicle device and a portable device. The in-vehicle device includes an in-vehicle communication portion. The in-vehicle communication portion transmits a regular collation signal searching the portable device, and receives a regular response signal, and receives reservation information reserving opening of an arbitrary door. The in-vehicle device includes a collation portion that collates an ID code with a master code. The in-vehicle communication portion transmits an event collation signal, and receives an event response signal. The collation portion collates the ID code with the master code. The in-vehicle device includes an output portion and an intention determination portion. The portable device includes a portable device communication portion and an operation portion and a storage portion and a notification portion. The portable device communication portion transmits the regular response signal, and transmitting the reservation information. The portable device communication portion transmits the event response signal.