EV Battery Replacement Control Using Battery Characteristic Data
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Solution Overview
Problem
There is a risk that vehicle performance deteriorates when an inappropriate battery pack is mounted on a vehicle following a battery replacement.
Innovation Solution
A control device and method that acquire battery characteristic information corresponding to the replaced battery pack and adjust vehicle control accordingly, ensuring optimal performance based on the new battery characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a replaceable battery pack is mounted on the vehicle without verification, then battery replacement is simple and quick, but vehicle performance may deteriorate due to incompatible battery characteristics
Solution Approach 1:
The control device acquires battery characteristic information from the storage device before executing battery replacement operations. This preliminary verification ensures that only compatible battery packs are installed, preventing performance deterioration while maintaining simple replacement procedures.
Solution Approach 2:
The control device receives battery characteristic information through a communication unit and uses this feedback to determine whether the replaced battery pack is appropriate for the vehicle. This feedback mechanism ensures reliable vehicle performance by preventing installation of incompatible batteries.
2Reliability
If battery characteristic information is acquired and verified for each replacement, then vehicle performance is maintained, but the control system becomes more complex
Solution Approach 1:
The battery pack includes an integrated storage device that automatically stores and provides its own characteristic information. This self-service approach eliminates the need for complex external verification systems, as the battery itself provides the necessary data for compatibility verification.
Solution Approach 2:
The control device integrates multiple functions including communication with the storage device, acquisition of battery characteristic information, determination of battery appropriateness, and control of battery replacement operations within a single system. This multi-functionality reduces overall system complexity despite the added verification requirements.
Data Source
AI summary
The control device of electrified vehicle includes a communication unit capable of receiving data stored in servers, and a processor. The server stores battery characteristic information indicating a characteristic of the battery when electrified vehicle is driven, in association with battery specific information specific to the battery. When the battery is replaced, the processor acquires the battery characteristic information corresponding to the battery specific information of the replaced battery from the server through the communication unit, and changes the vehicle control in electrified vehicle using the battery characteristic information acquired from the server.