Vehicle Energy Management Computing Split Between BMS and Processor

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional electric vehicles lack advanced energy management functions, leading to limitations in processing complex energy management calculations, which are crucial for efficient autonomous driving and energy efficiency.

Innovation Solution

An autonomous driving platform with a processor that processes energy management calculations in conjunction with a battery management system, distributing the workload to efficiently manage vehicle energy and enhance driving control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If energy management calculations are processed only by the battery management system (BMS), then the system structure remains simple, but the processing capability reaches its limits and cannot handle advanced energy management functions

Engineering Contradiction:

Improveprocessing capabilityVSAvoidsystem structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The energy management calculation is divided into multiple portions: a first portion processed by the autonomous driving platform's processor and a second portion processed by the battery management system. This segmentation allows complex calculations to be distributed across different processing units, enhancing overall processing capability while maintaining a modular system structure that doesn't require complete redesign.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The autonomous driving platform's processor, originally designed for driving control functions, is extended to also handle energy management calculations. This multi-functionality approach allows the existing processor to serve dual purposes, improving processing capability without adding dedicated new hardware specifically for energy management.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Loss of energy

If more advanced energy management functions are implemented, then energy efficiency improves, but the processing load increases beyond BMS capabilities

Engineering Contradiction:

Improveenergy efficiencyVSAvoidprocessing capability

Core Design Contradiction:

Loss of energyVSProductivity

Solution Approach 1:

Advanced energy management calculations are segmented into portions that can be handled by the autonomous driving platform and portions handled by the BMS. This enables implementation of sophisticated energy management functions that improve energy efficiency while distributing the processing load to avoid overwhelming the BMS.

Inventive Principle:

Principle #1Segmentation

3Productivity

If the BMS processes all energy management calculations independently, then system independence is maintained, but processing speed and efficiency are limited

Engineering Contradiction:

Improveprocessing speedVSAvoidsystem independence

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The energy management calculation function is merged between the autonomous driving platform and the battery management system. The processor and BMS work together as a coordinated system, with the processor handling complex calculations and the BMS managing battery-specific operations. This combination improves processing speed while maintaining functional independence through defined interfaces and communication protocols.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4663469A1Vehicle, computing system, operation method of computing system, and computer program

Publication Date: 2025.12.17 LG ENERGY SOLUTION LTD

Figure 1
Figure 2
Figure 3

AI summary

A vehicle includes a battery and a computer system that obtains battery state information related to a state of the battery from the battery, at least partially processes a calculation related to energy management of the vehicle by using the battery state information, and provides the battery with result information obtained by processing the calculation.