Self-Sufficient Generator Unit with Integrated Cooling Circuit
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Solution Overview
Problem
Existing add-on generator units for agricultural work vehicles lack a comprehensive solution for controlling the generator module and electric power consumers, relying on external systems for operation and lacking integrated cooling and lubrication.
Innovation Solution
A self-sufficient generator unit with a gear module, generator module, and integrated power electronics system, along with a cooling circuit, which allows for independent mechanical drive and control of both the generator and electric power consumers, including provision of alternating and direct voltage interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an add-on generator unit is equipped to a work vehicle with external control systems, then the generator can operate with different nominal voltages, but the unit lacks self-sufficiency and depends on external power networks for control
Solution Approach 1:
The patent combines the generator module, gear module, power electronics system, and cooling circuit into a single integrated generator unit. The power electronics system is built directly into the unit, merging control functions with the generator operations, eliminating the need for external control systems while maintaining voltage adaptability.
Solution Approach 2:
The generator unit is designed as a self-sufficient multi-functional system that can operate independently of the work vehicle's power network. It provides both mechanical drive through the gear module and electrical control through the integrated power electronics system, making it universally applicable without external dependencies.
2Reliability
If the generator unit is designed as a self-sufficient unit with integrated power electronics, then independence from work vehicle power network is achieved, but the structural complexity of the unit increases
Solution Approach 1:
The generator unit is segmented into distinct functional modules: a generator module for power generation, a gear module for mechanical drive, a power electronics system for control, and a cooling circuit for thermal management. This modular segmentation allows each component to be optimized independently while maintaining overall system independence.
Solution Approach 2:
The power electronics system is nested within the generator unit structure, with the cooling circuit integrated around these components. The gear module and generator module are hydraulically connected within the same housing, creating a compact nested arrangement that achieves operational independence without excessive structural complexity.
3Temperature
If a separate cooling circuit is provided for the power electronics system, then thermal management is improved, but the number of fluid circuits and components increases
Solution Approach 1:
The cooling circuit for the power electronics system is merged with the existing cooling and lubricating agent circuit that serves the gear module and generator module. This unified cooling circuit reduces the number of separate fluid circuits and components while ensuring adequate thermal management for all heat-generating components through integrated heat exchange.
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
Enables self-sufficient operation of the generator unit, independent of the work vehicle's power network, with integrated cooling and lubrication, ensuring reliable power management and reduced dependency on external systems.
Implementation Method 1
A cooling circuit may also be provided for the cooling of the power electronics system
Implementation Method 2
the gear module and the generator module are hydraulically connected with one another via an integrated cooling and lubricating agent circuit
Data Source
AI summary
A generator unit is provided for attachment to an agricultural work vehicle with a gear module and a generator module. The gear for the driving of the generator module is connected in a drive system with the generator module, and the gear module and the generator module are hydraulically connected with one another via an integrated cooling and lubricating agent circuit.