Vehicle Door Sensor Control Based on User Pose and Battery Drain
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Solution Overview
Problem
Vehicles face increased power consumption when sensors are left active after the vehicle is deactivated, reducing the battery's state of charge and preventing other vehicle components from being powered.
Innovation Solution
A vehicle computer system that classifies vehicle doors based on the pose of a user outside the passenger cabin, selectively activating sensors to monitor doors only when necessary, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors are left active after vehicle deactivation, then door monitoring capability is maintained, but battery power consumption increases
Solution Approach 1:
The system dynamically adjusts sensor activation status based on real-time user pose detection and door risk assessment. Sensors transition between active and inactive states according to changing conditions, optimizing the balance between monitoring reliability and power consumption.
Solution Approach 2:
The system changes the operational parameter of sensors from continuously active to conditionally active based on detected user pose and calculated door risk. This parameter change enables the system to maintain monitoring capability when needed while reducing power consumption when risks are low.
2Use of energy by moving object
If sensors are deactivated to save power, then battery power consumption is reduced, but door monitoring capability is lost
Solution Approach 1:
The system performs preliminary risk assessment by detecting user pose and calculating door risk before determining sensor activation. This preliminary action allows the system to proactively maintain or reduce monitoring based on predicted risk levels, preventing both unnecessary power consumption and inadequate monitoring.
Solution Approach 2:
The system continuously monitors user pose and door risk conditions, using this feedback to dynamically adjust sensor activation status. This closed-loop feedback mechanism ensures monitoring capability is maintained when risks are high while enabling power savings when risks are low.
3Use of energy by moving object
If selective sensor activation based on user pose is implemented, then power consumption is optimized, but system complexity increases
Solution Approach 1:
The system segments the monitoring task by dividing it into distinct functional modules: user pose detection, door risk calculation, and sensor activation control. This segmentation allows each module to operate independently with optimized complexity, reducing overall system complexity while enabling sophisticated power management.
Data Source
AI summary
Upon detecting a user departing a passenger cabin of a vehicle, a pose of the user is determined relative to the vehicle. A classification for a vehicle door is determined based on the pose. The classification is one of monitored or unmonitored. A sensor is controlled to monitor the vehicle door based on the classification.