Vehicle Entry Greeting Indicator Control for Battery Saving
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Solution Overview
Problem
Vehicles often prematurely activate exterior lights and electrical loads when a user approaches with a portable access device, even if they have no intention of using the vehicle, which can drain the battery unnecessarily.
Innovation Solution
A system that uses a processor and memory to determine a power-saving condition based on factors like the user's calendar schedule, historical usage data, and current driving conditions, and selectively activates or deactivates exterior lights and other electrical loads to conserve battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If exterior lights and electrical loads are activated when a user approaches with a portable access device, then user convenience and vehicle readiness are improved, but battery power is consumed unnecessarily when the user has no intention of using the vehicle
Solution Approach 1:
The system performs preliminary actions by activating exterior lights and electrical loads when a user approaches with a portable access device. However, it enhances this by incorporating predictive analytics that assess the likelihood of vehicle usage before fully activating systems, thus preparing the vehicle conditionally rather than unconditionally.
Solution Approach 2:
The system incorporates feedback mechanisms by monitoring multiple data sources including calendar schedules, historical usage patterns, and current context information. This feedback loop allows the system to dynamically adjust whether to activate exterior lights and electrical loads based on the assessed probability of actual vehicle usage, preventing unnecessary energy consumption while maintaining user convenience.
2Use of energy by moving object
If exterior lights are activated predictively based on user intent analysis, then battery power is conserved, but system complexity increases due to calendar and historical data processing
Solution Approach 1:
The system achieves multi-functionality by integrating multiple data processing capabilities into a single predictive framework. The processor analyzes calendar schedules, historical usage data, and current context information simultaneously to make a unified determination about vehicle activation needs, thereby managing complexity through functional integration rather than separate systems.
Solution Approach 2:
The system changes operational parameters dynamically by adjusting the threshold for activating exterior lights and electrical loads based on predictive confidence levels. When the likelihood of vehicle usage is low, the system modifies parameters to prevent activation, thereby conserving battery power while using straightforward parameter adjustment rather than complex algorithms.
3Use of energy by moving object
If the system analyzes calendar schedules and historical usage data to determine vehicle usage intent, then battery drain is reduced, but response time increases due to data processing requirements
Solution Approach 1:
The system performs preliminary data processing by continuously monitoring and pre-analyzing calendar schedules and historical usage patterns in the background. This allows the system to have readiness assessments pre-computed so that when a user approaches with a portable access device, the determination of whether to activate exterior lights can be made quickly based on pre-evaluated data rather than processing everything in real-time.
Solution Approach 2:
The system implements selective data processing by skipping detailed analysis of certain data sources when predictive confidence is already high. For example, if historical patterns strongly indicate vehicle usage at this time, the system can skip extensive calendar analysis and make a rapid determination, thereby reducing response time while still achieving accurate predictive activation control.
Data Source
AI summary
A system for power reduction during vehicle access. A memory storing instructions executable by a processor includes instructions to receive an access message by a target vehicle, authenticate the access message, and determine either an occurrence of a power-saving condition or a non-occurrence of the power-saving condition. The instructions include activating a greeting indicator upon authentication of the access message and determining the non-occurrence of the power-saving condition, and determining not to activate the greeting indicator upon authentication of the access message and determining the occurrence of the power-saving condition.