Construction Machine Drive Mode Management
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Solution Overview
Problem
Existing road finisher operations require frequent manual adjustments of drives between operating modes, leading to increased operator interactions, potential errors, and reduced efficiency, which affects paving quality and safety.
Innovation Solution
A control system with an operating mode selector switch that automatically adjusts drives between predefined positions based on selected modes, reducing operator interactions and enabling quick switching between paving and transport positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of drives between operating modes is used, then operator control flexibility is maintained, but operator interaction frequency increases and error potential rises
Solution Approach 1:
The control system automatically detects the selected operating mode and autonomously adjusts the drive positions without requiring manual operator intervention. The system serves itself by linking drive position control directly to operating mode selection, eliminating human error while maintaining operational flexibility.
Solution Approach 2:
The control system continuously monitors the selected operating mode and automatically responds by adjusting drive positions accordingly. This closed-loop feedback mechanism ensures the drives are always in the correct position for the current operating mode, preventing errors while preserving operator control flexibility.
2Ease of operation
If manual adjustment of drives between operating modes is used, then operator control is maintained, but time consumption increases
Solution Approach 1:
The control system pre-configures drive positions for each operating mode in advance. When an operator selects an operating mode, the system instantly retrieves and executes the pre-determined drive position settings, eliminating the time-consuming manual adjustment process while maintaining operator control over the operating mode selection.
Solution Approach 2:
The control system autonomously manages drive position adjustments based on operating mode selection, freeing the operator from time-consuming manual adjustment tasks. The system serves itself by automatically configuring drives according to the selected mode, significantly reducing time consumption while preserving operator control.
3Reliability
If automatic drive adjustment is implemented, then operator errors are reduced, but system complexity increases
Solution Approach 1:
The control system merges operating mode selection with drive position control into a single integrated function. By combining these previously separate control functions, the system achieves automatic drive adjustment and error reduction without proportionally increasing complexity, as the control logic is consolidated rather than added.
Solution Approach 2:
The control system is designed to perform multiple functions: it manages operating mode selection, monitors drive positions, and automatically adjusts drives based on the selected mode. This multi-functionality allows the system to reduce operator errors while maintaining reasonable complexity by consolidating control responsibilities into a single universal control unit.
Data Source
Figure 1
AI summary
The machine has an operating mode selector switch (1) determining laying and transport operating modes of the machine. A drive (2) i.e. linear drive, is connected with a functional component of the machine. The switch and the drive are connected to a control system (3). The control system automatically adjusts the drive from a transport position (5) to a laying position (4) when the switch determines the laying operating mode. The component is selected from a group consisting of a leveling cylinder, screed, spreading screw, material bunker and a moving gear strike-off element. An independent claim is also included for a method operating a construction machine.