Paving Machine Screed Parameter Recall System
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Solution Overview
Problem
The set-up of screed assemblies in paving machines is time-consuming and labor-intensive, leading to inefficiencies and potential errors in achieving uniformity and smoothness of the paving mat, due to complex adjustments required for varying job site conditions and roadbed configurations.
Innovation Solution
A system with adjustable screed assemblies, actuators, and sensors that allow for automated configuration adjustments based on saved parameters, using a controller to communicate with sensors and actuators to recall and apply specific configuration settings for quick and accurate set-up.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of screed assembly is used to accommodate different job site conditions and roadbed configurations, then the paving machine can achieve desired uniform depth and smoothness, but the set-up process becomes time-consuming and labor-intensive
Solution Approach 1:
The system pre-saves optimal screed assembly configuration parameters for different paving conditions in memory. When a new paving operation begins, the operator can quickly recall previously saved parameters instead of manually adjusting each parameter, thus performing the configuration action in advance and reducing set-up time while maintaining precision
Solution Approach 2:
The system creates digital copies of successful screed assembly configurations and stores them in memory. These parameter sets can be recalled and applied to new operations, eliminating the need to manually recreate the same adjustments and significantly reducing set-up time while preserving the precision of previously optimized configurations
2Manufacturing precision
If multiple adjustments are made to the screed assembly to accommodate varying conditions, then the paving quality can be optimized, but the complexity of the set-up process increases leading to errors
Solution Approach 1:
The system merges multiple individual parameter adjustments into integrated parameter sets that are saved and recalled as complete configurations. This combining of adjustments into unified packages reduces the complexity of manual set-up while maintaining all necessary adjustments for optimal paving quality
Solution Approach 2:
The system uses sensors to monitor actual screed assembly positions and provides feedback to the controller. This feedback mechanism ensures that recalled parameters are accurately applied and maintains precision despite the complexity of multiple adjustments, as the system can verify and correct any deviations
3Ease of operation
If manual set-up procedures are used for the screed assembly, then operators can adjust parameters, but errors in set-up can result in defects in the paving mat
Solution Approach 1:
The system performs self-configuration by automatically recalling and applying saved parameters to screed assembly actuators. This self-service capability eliminates manual adjustment errors while maintaining operational ease, as the system independently configures itself based on pre-saved optimal settings for different paving conditions
Solution Approach 2:
The system replaces manual mechanical adjustment with an automated electronic control system. The controller receives recall commands and automatically actuates the screed assembly through electronic signals to actuators, substituting human manual operations with an automated system that eliminates errors while maintaining ease of operation through simple button presses
Data Source
AI summary
A paving machine including an adjustable screed assembly is provided. Actuators adjust the screed assembly into the plurality of different configurations. Sensors sense a respective configuration parameter indicative of the configuration of the screed assembly. A controller is configured to save a first set of parameters including the configuration parameters and save a second set of parameters including the configuration parameters in response. The controller is configured to recall one of the first set or second set of parameters, and adjust automatically the configuration of the screed assembly to correspond to the configuration parameters included in the recalled first set or second set of parameters.