Vehicle Control System Preventing Unauthorized Door Unlock
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Solution Overview
Problem
The existing smart entry systems for vehicles face issues with unintentional unlocking when a mobile terminal is left inside the vehicle compartment, leading to potential unauthorized access and decreased convenience due to erroneous determination of the terminal's position.
Innovation Solution
A vehicle control system that includes an in-vehicle device and a mobile terminal, where the system determines if the mobile terminal is inside the vehicle compartment and only allows unlocking when the terminal is detected in use, preventing unauthorized access and maintaining system convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the smart entry system allows unlocking when a mobile terminal is detected inside the vehicle compartment, then convenience is improved, but security deteriorates due to potential unauthorized access
Solution Approach 1:
The system dynamically changes the unlocking behavior based on the detected state of the mobile terminal. When the terminal is detected inside the vehicle compartment, the system switches to a restricted mode where unlocking is only permitted if the terminal is actively being used, rather than allowing unconditional unlocking as in static systems
Solution Approach 2:
The system continuously monitors and detects whether the mobile terminal is being used, and uses this feedback information to control the unlocking function. The detection result directly influences the unlocking decision, creating a closed-loop control system that adapts to real-time conditions
2Reliability
If the system prevents unlocking when the mobile terminal is inside the vehicle compartment, then security is improved, but convenience deteriorates due to erroneous determination
Solution Approach 1:
Instead of a static prohibition policy, the system dynamically adjusts the unlocking restriction based on terminal usage detection. The system transitions from a fixed 'no unlocking' rule to a flexible 'unlock only when used' policy, optimizing both security and convenience based on real-time conditions
Solution Approach 2:
The system changes the operational parameters of the unlocking function based on the detected usage state of the mobile terminal. When usage is detected, the system modifies the unlocking condition from 'prohibited' to 'permitted', effectively changing the system's behavior through parameter adjustment rather than structural modification
Data Source
AI summary
A vehicle control system includes an in-vehicle device, a mobile terminal, and one or more processors. The in-vehicle device is mounted on a vehicle. The in-vehicle device controls a lock mechanism that locks and unlocks a door of the vehicle. The in-vehicle device causes the lock mechanism to unlock the door in response to a predetermined condition being satisfied. The mobile terminal communicates with the in-vehicle device. The one or more processors determine whether the mobile terminal is present inside a vehicle compartment. The one or more processors detect whether the mobile terminal is used. The one or more processors control the vehicle control system not to satisfy the predetermined condition in response to determination that the mobile terminal is present inside the vehicle compartment.