Vehicle Paging Response With Dynamic DRX Cycle Control
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Solution Overview
Problem
The latency in receiving vehicle commands during a discontinuous reception (DRX) cycle in a power-off state leads to customer dissatisfaction due to noticeable delays, which can be perceived as technology glitches, especially in a world where instant control is expected.
Innovation Solution
A vehicle system dynamically adjusts the DRX cycle based on predefined variables and control strategies, allowing automatic changes to minimize latency while preserving battery life, using processors to manage DRX cycles during engine-off states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the vehicle uses a fixed DRX cycle for power-off state, then battery life is extended, but response latency increases to 0.64 seconds average
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed DRX cycle to a dynamic, context-aware DRX cycle that automatically adjusts based on predefined variables such as time of day, vehicle usage patterns, and environmental conditions. This allows the system to optimize between battery life and response latency in real-time, resolving the contradiction between energy conservation and fast response.
Solution Approach 2:
The patent changes the parameter of DRX cycle duration based on contextual variables. By modifying the cycle length parameter dynamically rather than using a fixed value, the system can reduce latency when needed (shorter cycles) while maintaining battery life during normal conditions (longer cycles), thus resolving the trade-off between these two parameters.
2Loss of time
If the DRX cycle is reduced to minimize latency, then response time improves to near-instantaneous, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the DRX cycle length based on contextual conditions rather than using a static short cycle. This allows the vehicle to maintain near-instantaneous response when needed (e.g., during business hours or when vehicle usage is detected) while extending the cycle to conserve power during appropriate conditions, thus resolving the contradiction between fast response and low power consumption.
Solution Approach 2:
The patent changes the DRX cycle parameter based on contextual variables such as time of day, weather conditions, and vehicle usage patterns. This dynamic parameter adjustment enables the system to optimize the balance between response speed and power consumption, avoiding the need for continuously short cycles that would waste energy.
3Ease of operation
If the vehicle responds immediately to all commands, then customer satisfaction improves, but battery depletes faster
Solution Approach 1:
The system dynamically adjusts responsiveness based on contextual conditions rather than maintaining constant immediate response. By monitoring variables such as time of day, vehicle usage patterns, and environmental factors, the system can provide fast response during appropriate conditions (enhancing customer satisfaction) while extending the DRX cycle to conserve battery life during conditions where immediate response is less critical.
Solution Approach 2:
The patent changes the responsiveness parameter (DRX cycle length) based on contextual variables. This allows the vehicle to appear highly responsive and satisfy customer expectations during business hours or when usage patterns indicate imminent vehicle access, while reducing responsiveness (extending cycle length) during off-peak times to preserve battery life.
4Use of energy by moving object
If a longer DRX cycle is used, then battery life is extended, but customer perception of system responsiveness deteriorates
Solution Approach 1:
The system dynamically adjusts the DRX cycle based on contextual conditions to balance battery life and perceived responsiveness. By monitoring variables such as time of day, weather, and usage patterns, the system can extend the cycle (improving battery life) during conditions where customers are less likely to notice delays (e.g., night time, extreme weather), while using shorter cycles during business hours when responsiveness is more critical.
Solution Approach 2:
The patent changes the DRX cycle parameter based on contextual variables to optimize the balance between battery life and perceived responsiveness. This dynamic parameter adjustment allows the system to use longer cycles when battery conservation is prioritized and customer perception is less critical, while using shorter cycles when responsiveness is more important, thus resolving the contradiction.
Data Source
AI summary
A vehicle determines the value of at least one predefined variable related to predefined contexts for discontinuous reception (DRX) cycle control during an engine-off state of the vehicle. The vehicle determines how a current DRX cycle should be changed responsive to the value of the at least one predefined variable in accordance with a control strategy associated with the at least one variable and, responsive to the determining how the cycle should be changed, automatically changes the current DRX cycle in accordance with the control strategy while the vehicle remains powered down.