Rolling Compactor Power Compensation for Accurate Compaction State
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Solution Overview
Problem
Existing compaction measurement systems for rolling compactors are influenced by various variables, making it difficult to accurately determine the state of compaction, including power requirements, material composition, thickness, and surface friction, leading to inconsistent compaction results.
Innovation Solution
A system and method that utilizes a powertrain sensor to measure gross generated power and temperature sensors to calculate an actual drive power, incorporating a temperature compensation factor, and a compaction measuring system to account for friction and vibration effects, enabling precise compaction determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If powertrain sensor measures gross generated power to determine compaction state, then compaction measurement is obtained, but measurement precision deteriorates due to influence from temperature, friction, and vibration variables
Solution Approach 1:
The system continuously monitors temperature from temperature sensors and vibration from vibration sensors, then feeds this information back to the controller which adjusts the compaction measurement calculations in real-time to compensate for these variables' effects
Solution Approach 2:
The system changes the measurement parameters by introducing temperature compensation factors and vibration compensation factors that adjust the gross power measurement to account for environmental and operational variables, transforming a single-parameter measurement into a multi-parameter corrected measurement
2Measurement precision
If temperature sensors and vibration sensors are added to the system, then measurement precision improves through compensation factors, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it manages the powertrain, processes temperature sensor data, processes vibration sensor data, calculates compensation factors, and determines compaction state - consolidating what could be separate systems into a single multi-functional control unit
Solution Approach 2:
The system merges the temperature compensation calculation and vibration compensation calculation into a unified actual drive power calculation process, combining multiple correction factors into a single integrated measurement approach
Data Source
AI summary
A compaction measurement system is configured to measure the state of compaction of a work material by a rolling compactor. The compaction measurement system includes a powertrain sensor to measure the gross generated power produced by a powertrain of the rolling compactor and a temperature sensor to measure the temperature of a system associated with the rolling compactor. The compaction measurement system also includes an electronic controller that converts the system temperature to a temperature compensation factor and calculates an actual drive power applied during the compaction process from the temperature compensation factor and the gross generated power.