EV Communication Mode Switching for Battery-Aware V2X Links
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Solution Overview
Problem
Battery-powered electric vehicles face challenges in maintaining stable battery capacity during high-power consumption RF communication modes like 5G mmWave, which can reduce driving distance and speed due to excessive battery drain.
Innovation Solution
An electronic device with battery capacity identifying circuitry and processor that calculates estimated battery consumption and determines whether to switch from high-power 5G mmWave communication to lower power modes like 5G sub6, LTE, or 3G based on remaining battery capacity, ensuring efficient power management and stable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 5G mmWave communication mode is used to achieve high data rates and low latency, then V2X communication performance is improved, but battery power consumption increases excessively
Solution Approach 1:
The system dynamically switches between 5G mmWave and 5G sub6 communication modes based on real-time battery status and communication requirements. When battery level is sufficient, the system uses 5G mmWave for high data rates; when battery level drops below thresholds, it switches to 5G sub6 for lower power consumption, making the communication mode adaptable rather than static
Solution Approach 2:
The system changes the communication mode parameter (from 5G mmWave to 5G sub6) based on battery status conditions. This parameter change allows the system to adjust power consumption characteristics while maintaining communication functionality, directly addressing the contradiction between high data rate requirements and battery conservation
2Reliability
If 5G mmWave communication mode is used continuously, then communication quality is maintained, but driving distance is shortened
Solution Approach 1:
The system periodically monitors battery status and communicates with the server to assess whether communication mode switching is needed. This periodic evaluation ensures that communication quality is maintained when battery is sufficient, while enabling power-saving mode transitions when battery levels drop, thus extending overall driving distance
3Loss of time
If 5G mmWave communication mode is used, then low latency is achieved, but battery capacity depletes faster
Solution Approach 1:
The system dynamically adjusts communication mode based on battery status and communication urgency. For time-critical V2X communications, it may maintain 5G mmWave mode despite higher power consumption, while for less urgent communications or when battery is low, it switches to 5G sub6, creating a dynamic balance between latency and power consumption
Data Source
AI summary
Provided are an electronic device mounted on a battery powered electric vehicle and an operation method thereof. The electronic device may calculate estimated battery consumption for the vehicle to be driven to a destination, identify a current remaining capacity of the battery, and determine, based at least in part on the identified remaining capacity of the battery and the estimated battery consumption, whether to switch from a first communication mode (e.g., a fifth generation (5G) millimeter wave (mmWave)) in current use, to a second communication mode that consumes battery power at a different rate.