Battery Simulator Circuit Using Shared Ground for Fewer Components

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Solution Overview

Problem

Conventional battery simulators require a large number of electrical components, leading to high costs and space requirements due to their need to simulate multiple battery cells independently.

Innovation Solution

The battery simulator employs a first electrical circuit that simulates two battery cells using a shared local circuit ground, reducing the need for duplicate electrical components and control electronics. This design allows for efficient simulation of multiple battery cells with a significantly lower component requirement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional battery simulator simulates multiple battery cells independently with separate electrical circuits, then each cell can be individually controlled and simulated, but the number of electrical components, control electronics, and power supplies increases significantly

Engineering Contradiction:

Improveability to simulate multiple battery cellsVSAvoidnumber of electrical components

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple battery cell simulations into a single electrical circuit by connecting simulated cell voltages in series. Instead of using separate electrical circuits for each battery cell, the invention combines them into one circuit where the first cell voltage and second cell voltage are connected in series, sharing common control electronics and power supply, thereby reducing component count while maintaining simulation capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The control electronics and power supply are designed to serve multiple functions simultaneously. A single control electronics unit regulates multiple cell voltages (first cell voltage, second cell voltage, etc.), and one power supply provides energy for the entire circuit, making these components universal rather than dedicated to individual cells

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If separate electrical circuits are used for each battery cell simulation, then independent control is achieved, but the space requirement and cost increase

Engineering Contradiction:

Improveindependent control of cell voltagesVSAvoidspace requirement

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

Multiple cell voltage simulations are merged into a single electrical circuit layout, reducing the physical space required. The first subsection and second subsection share the same circuit board and component housing, eliminating the need for separate circuit modules for each battery cell

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If multiple independent electrical circuits are implemented, then each cell voltage can be regulated independently, but the number of control electronics and power supplies doubles

Engineering Contradiction:

Improveindependent regulation of cell voltagesVSAvoidnumber of control electronics and power supplies

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The control electronics is designed as a universal regulator that can independently control multiple cell voltages within the same circuit. The single control unit generates separate control signals for the first voltage regulator and second voltage regulator, enabling independent regulation of first cell voltage and second cell voltage while using only one control electronics module

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The control electronics is segmented into functional modules that can independently regulate different voltage levels. The control unit divides its control functions to manage multiple voltage regulators, allowing independent control of each cell voltage while sharing the overall control architecture

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250067808A1Battery simulator with a reduced need for electrical components

Publication Date: 2025.02.27 DSPACE DIGITAL SIGNAL PROCESSING & CONTROL ENGINEERING GMBH

AI summary

A battery simulator comprising a first electrical circuit for providing a first cell voltage for simulating the electrical voltage of a first battery cell and a second electrical circuit for providing a second cell voltage for simulating the electrical voltage of a second battery cell. The first cell voltage is connected to a local circuit ground and the second cell voltage is connected to the same local circuit ground and connected in series to the first cell voltage in such a way that the local circuit ground forms a pole of the first cell voltage and the second cell voltage. A control electronics is set up to regulate the first cell voltage and the second cell voltage. A saving in components results from the control of two cell voltages by a single control electronics.