Electric Vehicle Battery Bracket Dynamic Balancing

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Solution Overview

Problem

Existing methods for balancing electric vehicles lack flexibility and variability in adjusting the disposition of traction batteries relative to the chassis, limiting their ability to optimize weight distribution and dynamic balance in response to passenger input and driving conditions.

Innovation Solution

A controller in the electric vehicle adjusts the disposition of the bracket and battery modules relative to the chassis, allowing for up to six external degrees of freedom through translation, rotation, and internal adjustments, using a human-machine interface to receive passenger input and activate actuators for real-time or predictive adjustments, enabling various modes such as stable, balanced, and agile driving.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the position of the bracket is adjusted using existing methods, then the balance of the electric vehicle is improved, but the flexibility and variability of adjustment are limited

Engineering Contradiction:
ImprovebalanceVSAvoidflexibility and variability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic adjustment system where the bracket can be repositioned in real-time based on passenger input and driving conditions. The controller receives signals from the human-machine interface and automatically adjusts the bracket position, transforming a static mounting system into a dynamic one that adapts to changing requirements, thereby resolving the contradiction between maintaining stability and enabling flexibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The bracket is divided into multiple adjustable segments or positioning zones, allowing independent adjustment of different portions. This segmentation enables more granular control over the center of gravity position, increasing the variability of adjustment while maintaining overall balance, thus addressing the limitation of existing fixed-position systems.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If the disposition of the traction battery is fixed, then the device complexity is reduced, but the ability to optimize weight distribution is limited

Engineering Contradiction:
Improve结构简单性VSAvoidweight distribution optimization
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The bracket system is designed with multi-functionality, serving both as a structural support element and as an active balance adjustment mechanism. By integrating sensing capabilities, actuation systems, and control functions into the bracket assembly, the patent achieves weight distribution optimization without proportionally increasing overall device complexity, as the same structural component performs multiple functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20230382472A1Electric vehicle and balancing of an electric vehicle
Publication Date: 2023.11.30 AUDI AG
  • US20230382472A1 patent drawing
  • US20230382472A1 patent drawing

AI summary

A method for balancing an electric vehicle is provided, in which a controller of an electric vehicle variably adjusts the disposition of a bracket with battery modules of a traction battery of the electric vehicle situated in the bracket relative to a chassis of the electric vehicle. An electric vehicle is also provided.