Drive Battery Care Suggestions for Longer EV Battery Life
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Solution Overview
Problem
The service life of drive batteries in electric motor vehicles is not optimized due to complex production and the need for extended usage, with factors like charging states, rapid charging, and ambient temperatures affecting longevity.
Innovation Solution
A method that receives drive battery charging state signals and generates care suggestion signals based on recommendations for battery care, including optimal charging and discharging strategies, to extend the service life by suggesting when to charge or discharge, and adjusting for route, temperature, and charging history.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the drive battery is charged to high charging states frequently, then the vehicle can travel longer distances between charges, but the service life of the battery deteriorates
Solution Approach 1:
The system dynamically adjusts the recommended charging state range based on multiple factors including ambient temperature, driving behavior patterns, state of health, and state of charge. The upper and lower limits of the charging state range are not fixed but adaptively modified to optimize both travel distance and battery service life under different operating conditions.
Solution Approach 2:
The system changes the operational parameters of the battery by adjusting the recommended charging state range. By modifying the charging and discharging state limits based on temperature, health status, and driving patterns, the system optimizes the balance between usable capacity and battery longevity without requiring physical modifications to the battery.
2Loss of time
If rapid charging is used frequently, then charging time is reduced, but the service life of the battery deteriorates
Solution Approach 1:
The system applies partial action by recommending moderate charging rates rather than always using maximum rapid charging. By suggesting charging states that are sufficient but not excessive, and by adjusting the recommended range to account for the damaging effects of rapid charging, the system reduces charging time while protecting battery service life.
3Adaptability or versatility
If the drive battery operates in extreme ambient temperatures, then the vehicle can be used in various environments, but the service life of the battery deteriorates
Solution Approach 1:
The system applies local quality by adjusting the recommended charging state range specifically for the battery based on ambient temperature conditions. In extreme temperatures, the system modifies the charging recommendations to protect the battery from thermal stress, allowing the vehicle to operate in various environments while minimizing temperature-related degradation.
Data Source
AI summary
A method for optimizing a service life of a drive battery of an electric motor vehicle. The method includes: receiving drive battery charging state signals representing a drive battery charging state of the drive battery; generating care suggestion signals based on the drive battery charging state signals and based on at least one recommendation for drive battery care to optimize a service life of the drive battery of the electric motor vehicle, wherein the care suggestion signals represent a care suggestion for caring for the drive battery; outputting the generated care suggestion signals. A device, a computer program and a machine-readable storage medium are also described.