EV Charging Head Unit Dynamic Scheduling
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Solution Overview
Problem
Current electric vehicle charging systems lack the ability to dynamically set optimal charging times and amounts based on electricity rates, vehicle states, and routes, leading to driver inconvenience and inefficient energy usage.
Innovation Solution
A system comprising a head unit and mobile terminal that automatically sets variable charging times and amounts by considering electricity rates, vehicle states, and routes, using a telematics center to receive and transmit charging information, and including units for measuring battery conditions, computing charging rates, and storing map data to optimize charging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If static charging amount is input by scheduler, then charging operation is simple, but optimum charging time and vehicle state are not considered causing driver inconvenience
Solution Approach 1:
The system dynamically adjusts charging parameters based on real-time vehicle state and electricity rates. The head unit automatically modifies charging start time, charging amount, and charging rate according to current battery level, vehicle usage patterns, and time-of-use pricing, transforming static charging schedules into adaptive dynamic charging operations that respond to changing conditions
Solution Approach 2:
The head unit autonomously determines optimal charging parameters without requiring driver intervention. It self-adjusts charging start time based on predicted vehicle usage, self-calculates appropriate charging amounts based on battery state and route requirements, and self-optimizes charging rates based on electricity rate structures, enabling the system to serve itself rather than requiring manual scheduling
2Device complexity
If charging start/finish time is fixed, then charging schedule is simple, but charging cost efficiency is reduced due to ignoring electricity rate variations
Solution Approach 1:
The system continuously receives feedback from electricity rate information and vehicle state data, then adjusts charging parameters accordingly. The head unit monitors real-time or forecasted electricity rates and uses this feedback to determine optimal charging windows, shifting charging operations to low-rate periods when possible, thereby reducing charging costs while maintaining simple automated operation for the driver
Solution Approach 2:
The system changes charging parameters (start time, amount, rate) based on varying electricity rate conditions. When electricity rates are low, the system increases charging amount or extends charging duration; when rates are high, it reduces charging activity or delays charging to off-peak periods, dynamically adapting charging behavior to economic conditions
3Productivity
If linear charging is performed without considering route and destination, then charging process is simple, but charging timing does not match actual vehicle needs
Solution Approach 1:
The system performs preliminary analysis of route and destination information to predict future vehicle energy needs. By examining planned trips, terrain, distance, and vehicle usage patterns, the head unit anticipates when charging will be required and proactively schedules charging operations before battery depletion occurs, ensuring charging timing aligns with actual vehicle requirements rather than responding reactively
Solution Approach 2:
The head unit integrates multiple functions including route planning, battery management, electricity rate monitoring, and charging control into a single system. It processes diverse information types (GPS location, battery state, weather, traffic, pricing) and coordinates multiple charging parameters simultaneously, creating a universal charging management system that handles various driving scenarios and charging conditions through integrated control
Data Source
AI summary
A system and method for charging an electric vehicle are provided. The system includes a head unit that receives information regarding a battery of a power module mounted within the electric vehicle and displays the information. The head unit also sets variable reserved charging of the battery or a destination of a battery charging station based on a charging amount obtained from the power module. Additionally, information regarding the power module or a residual quantity of the battery of the electric vehicle is acquired and the information regarding the electric vehicle is stored or a current location is acquired.