Surface Compactor Power Scheduling Under Energy Constraints
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Solution Overview
Problem
Existing surface compactor machines often face challenges in efficiently managing energy expenditure, leading to situations where predicted energy demands exceed available energy supplies, potentially resulting in reduced performance or increased emissions.
Innovation Solution
An electronic control unit (ECU) is introduced that includes a processor circuit and memory, enabling it to obtain a planned operating profile, generate a predicted power expenditure schedule, and adjust the operation to a modified profile if energy constraints are detected, thereby optimizing energy use and reducing emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the compactor operates according to a planned operating profile with high power demands, then productivity and compaction performance are improved, but energy expenditure exceeds available energy supply
Solution Approach 1:
The system performs preliminary analysis of the planned operating profile to predict future energy requirements before executing compaction operations. The ECU calculates anticipated energy consumption and compares it against available energy supply, allowing proactive adjustment of operating parameters to prevent energy deficits while maintaining productivity
Solution Approach 2:
The system dynamically adjusts operating parameters such as vibration intensity, travel speed, and drum rotation based on real-time energy availability and predicted expenditure. This dynamic optimization allows the compactor to operate at maximum efficiency when energy is abundant while reducing power consumption when energy reserves are limited, resolving the contradiction between maintaining high productivity and staying within energy constraints
2Productivity
If the compactor operates at full power to meet energy demands, then compaction speed and productivity are improved, but emissions increase
Solution Approach 1:
The system changes operating parameters such as vibration amplitude, frequency, and travel speed to optimize the balance between compaction effectiveness and power consumption. By adjusting these parameters dynamically, the system achieves required compaction results with lower engine power output, thereby reducing emissions while maintaining productivity
Solution Approach 2:
The ECU continuously monitors actual energy consumption and compares it with predicted expenditure, using this feedback to adjust operating parameters in real-time. This closed-loop control ensures the compactor operates efficiently within energy constraints, reducing unnecessary high-power operations that would increase emissions while maintaining compaction speed
Data Source
AI summary
An electronic control unit for a compactor obtains a planned operating profile of the compactor, generates a predicted power expenditure schedule for the compactor based on the planned operating profile, determines, based on the predicted power expenditure schedule, that a predicted energy expenditure of the compactor exceeds an available energy of the compactor, generates a modified operating profile in response to determining that the predicted energy expenditure of the compactor exceeds the available energy of the compactor, and operates the compactor according to the modified operating profile.