Modular Energy Supply Device for Flexible Vehicle Charging
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Solution Overview
Problem
Existing energy supply devices for motor vehicles lack flexibility in configuring energy delivery, particularly in terms of voltage levels and charging speed, which limits their adaptability to different customer requirements and vehicle types.
Innovation Solution
The proposed energy supply device includes an energy supply unit and an optional further energy supply unit, both controlled by a single control unit, which can establish a safety extra-low voltage connection and provide higher voltage levels for faster charging, allowing for flexible configuration and operation. The device can connect to both a safety extra-low voltage transmission device and a low-voltage transmission device, enabling various charging processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single energy supply unit is used, then device complexity is reduced, but adaptability to different charging requirements is limited
Solution Approach 1:
The energy supply device is divided into multiple independent energy supply units (first energy supply unit and second energy supply unit), each capable of providing different voltage levels. This segmentation allows the system to adapt to various charging requirements by selectively activating appropriate units, while each unit remains a manageable, modular component.
Solution Approach 2:
Multiple energy supply units are integrated into a single device, with each unit capable of operating independently or in combination with others. The control unit coordinates these multiple units to provide universal charging capabilities across different voltage requirements, making the device versatile for various charging scenarios.
2Adaptability or versatility
If multiple energy supply units are integrated, then adaptability increases, but control complexity increases
Solution Approach 1:
Multiple energy supply units are merged into a single integrated device with a unified control unit. This consolidation allows the control unit to manage all energy supply units through a single control interface, coordinating their operation to provide flexible energy delivery while maintaining centralized control and avoiding the need for separate control systems for each unit.
3Measurement precision
If separate control units are used for each energy supply unit, then control precision is improved, but device complexity increases
Solution Approach 1:
A single control unit is designed to manage multiple energy supply units, integrating control functions that would otherwise require separate control units. This unified approach maintains precise control over each energy supply unit while reducing overall device complexity by eliminating redundant control hardware and software.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a highly flexible and efficient energy supply system that can be tailored to customer needs, supporting both slow and fast charging, while ensuring safety and cost-effectiveness through shared components like a common rectifier and DC-to-DC converters, enhancing the adaptability and operational simplicity of the energy supply device.
Implementation Method 1
The energy supply unit and the further energy supply unit are electrically connected to a common energy connection of the housing separately from one another by means of a common rectifier
Implementation Method 2
The motor vehicle has an energy storage device for temporary storage of the electrical energy
Data Source
AI summary
An energy supply device for providing electrical energy to a motor vehicle comprises an energy supply unit arranged in a housing. It is thereby provided that the energy supply unit is electrically connected on the one hand to an energy source and on the other hand to a transmission device designed to establish a safety extra-low voltage connection to the motor vehicle, and the energy supply unit can be controlled by means of a control unit to provide the energy for the motor vehicle, wherein the control unit is provided and designed to control a further energy supply unit said further energy supply unit can be arranged separately from the energy supply unit in the housing and can be electrically connected on the one hand to the energy source and on the other hand to the motor vehicle. A method for operating an energy supply device, a method for manufacturing energy supply devices and an energy supply arrangement are also provided.