Hybrid Drive Module for Construction Machines
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Solution Overview
Problem
Existing construction machines with hybrid drive systems require significant development and production effort, as well as increased maintenance and retrofitting work due to the integration of power and control components for electric motors, which are often distributed across the superstructure or integrated into existing units, leading to inefficiencies and increased workload.
Innovation Solution
The power and control components for operating the electric motor are arranged on a modular frame, forming an additional module that can be detachably attached to the rear of the superstructure, allowing for efficient manufacturing and retrofitting of hybrid drive systems without major modifications to the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power and control components for electric motor are integrated into existing electronic switching and control units or distributed across the superstructure, then the hybrid drive system can be implemented, but the development and production effort becomes very considerable and maintenance workload increases
Solution Approach 1:
The power and control components are segregated into a separate additional module that can be detachably attached to the rear of the superstructure. This module contains all necessary power and control components for operating the electric motor, separating them from the main superstructure and existing electronic systems. This segmentation reduces the complexity of integrating hybrid drive components into the main system while maintaining full functionality.
Solution Approach 2:
The power and control components are extracted from the superstructure and placed in a separate additional module. This extraction eliminates the need to integrate these components into existing electronic switching and control units, thereby reducing development and production effort while allowing the main superstructure to remain unchanged.
2Adaptability or versatility
If power and control components are distributed across the superstructure or integrated into existing units, then hybrid drive functionality is achieved, but maintenance and retrofitting workload increases considerably
Solution Approach 1:
By segmenting the power and control components into a separate additional module, maintenance and retrofitting work can be focused on this single module rather than searching through distributed components across the entire superstructure. The modular design allows for easier replacement and repair of specific components without affecting the main superstructure.
Solution Approach 2:
Extracting the power and control components into a separate additional module that can be detachably attached simplifies maintenance and retrofitting operations. The module can be easily removed and replaced as a complete unit, reducing the time and effort required for maintenance and retrofitting compared to distributed or integrated component arrangements.
3Adaptability or versatility
If a completely unique distribution of components is created to accommodate additional power and control components, then space for hybrid drive components is provided, but the manufacturing effort and inventory requirements increase significantly
Solution Approach 1:
The additional module serves as a self-contained unit housing all power and control components, eliminating the need to redesign the entire superstructure for component distribution. This segmentation allows the main superstructure to be manufactured once and reused, while only the additional module needs to be produced for hybrid drive configurations, significantly reducing manufacturing effort and inventory requirements.
Solution Approach 2:
The additional module is designed as a universal solution that can be attached to the rear of the superstructure to provide all necessary power and control components for hybrid drive operation. This multi-functional module eliminates the need for component-by-component integration and reduces inventory requirements by standardizing the power and control component assembly.
Data Source
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AI summary
The invention relates to a construction machine, in particular a civil engineering machine, with an undercarriage (12) with a chassis, a superstructure (14) which is rotatably mounted about a vertical axis on the undercarriage, at least one internal combustion engine which is arranged in the superstructure, and a distribution gearbox which is arranged in the superstructure and has a first drive shaft to which the internal combustion engine is connected in order to transmit and distribute a torque of the internal combustion engine to machine components, wherein the distribution gearbox has at least a second drive shaft which is designed for connecting at least one electric motor for a hybrid drive arrangement.According to the invention, it is provided that power and control components (30) for operating the at least one electric motor are arranged on a module frame (42), forming an additional module (40), and that the additional module can be detachably attached to a rear of the superstructure when the construction machine is designed with the hybrid drive arrangement.