Vehicle Door Lock Controller with Multi-Sensor State Detection
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Solution Overview
Problem
Current vehicle door locking systems require multiple actions to open a door when locked, and lack efficient mechanisms to detect and respond to vehicle states such as alarm status, ignition, and airbag deployment, leading to inconvenience and safety concerns.
Innovation Solution
A door locking system with a controller connected to various sensors (alarm, ignition, transmission, and airbag sensors) that detects vehicle states and releases doors accordingly, providing notifications and ensuring safe operation by monitoring and responding to these conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple sensor arrays and control logic are added to detect vehicle states and enable automatic door release, then door operation convenience and safety are improved, but device complexity increases
Solution Approach 1:
The controller is designed to perform multiple functions: monitoring alarm sensor status, ignition sensor status, transmission sensor status, airbag sensor status, and controlling door lock release based on any of these conditions. This multi-functionality consolidates what would otherwise require separate control systems into a single universal controller, improving ease of operation while managing device complexity through functional integration.
2Reliability
If the system monitors multiple vehicle states (alarm, ignition, transmission, airbag) to enable automatic door release, then safety and responsiveness are improved, but device complexity increases
Solution Approach 1:
The monitoring system is segmented into four independent sensor arrays, each dedicated to monitoring a specific vehicle state: alarm sensor for alarm status, ignition sensor for ignition status, transmission sensor for gear status, and airbag sensor for airbag deployment status. This segmentation allows each sensor to be optimized for its specific function while the controller integrates their outputs, improving reliability through specialized monitoring without requiring a single overly complex sensor system.
Solution Approach 2:
The controller serves as a universal monitoring and control unit that handles inputs from all four sensor arrays and executes door release logic based on any monitored condition. This multi-functional controller consolidates the complexity of monitoring multiple vehicle states into a single device, improving safety response while managing the overall system complexity.
3Reliability
If the door locking system requires multiple actuations to open the door when locked, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs preliminary monitoring of vehicle states (alarm disarmed, ignition off, transmission in park, airbag not deployed) before enabling door release. When these conditions are met, the door lock can be released with a single actuation of the door handle or locking mechanism, rather than requiring multiple actuations. This preliminary checking of security conditions allows the system to maintain security posture while enabling convenient single-action door opening when appropriate.
Solution Approach 2:
The system continuously monitors vehicle state through sensor arrays and provides feedback to the control logic, which adjusts door lock release behavior accordingly. When security conditions are satisfied (alarm disarmed, ignition off, transmission in park, airbag not deployed), the system feedback enables single-actuation door release. When conditions are not met, the system maintains multi-actuation requirements, thus adapting the ease of operation based on real-time security feedback while maintaining security posture.
Data Source
AI summary
A system and method for controlling a door locking system includes a controller and at least one locking mechanism operatively connected to each of a plurality of doors. At least one lock switch connected to the controller selectively locks the at least one locking mechanism based at least partially on actuation of the at least one lock switch. At least one sensor array connected to the controller detects a vehicle condition from at least one of a first vehicle state and a second vehicle state.