Paving Machine Engine Idle Time Reduction via Truck Arrival Tracking
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Solution Overview
Problem
Paving machines often experience engine idle time due to delays in the arrival of haul trucks carrying paving material, leading to increased maintenance costs, fuel consumption, and reduced engine lifetime.
Innovation Solution
A method and system that estimate the arrival time of haul trucks using tracking systems and geofences, allowing the paving machine's engine to be shut down if the startup time is less than the estimated arrival time, thereby reducing idle time and optimizing engine operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the engine is kept running during haul truck delays, then the paving machine is ready for immediate operation, but engine idle time increases leading to higher fuel consumption and maintenance costs
Solution Approach 1:
The system performs preliminary actions by pre-heating the engine and pre-positioning the paving machine for operation. When a haul truck is approaching (detected via tracking system), the engine is started and warmed up in advance, and the paving machine is positioned ready to receive material, eliminating cold-start delays while allowing the engine to be shut down during extended idle periods.
Solution Approach 2:
The system dynamically adjusts engine operation based on real-time conditions. The controller continuously monitors haul truck location, estimated arrival time, and engine parameters to determine the optimal shutdown or restart timing, making the engine operation adaptive rather than static.
2Loss of energy
If the engine is shut down during idle periods, then fuel consumption and maintenance costs decrease, but startup time is required before operation can resume
Solution Approach 1:
The system performs preliminary engine startup and warm-up actions when a haul truck is approaching (detected via tracking system). The engine is started and brought to operating temperature before the truck arrives, so that when material delivery begins, the paving machine can operate immediately without startup delays.
Solution Approach 2:
The controller dynamically determines the optimal shutdown and restart timing by monitoring haul truck location and estimated arrival time, balancing fuel savings from idle shutdown against the time required for engine startup and warm-up.
3Loss of time
If tracking systems and geofences are implemented to monitor haul truck arrival, then engine idle time is reduced, but system complexity increases
Solution Approach 1:
The tracking system serves multiple functions: it monitors haul truck location, calculates estimated arrival times, triggers engine shutdown/startup decisions, and provides operational data for optimization. This multi-functionality reduces the need for separate dedicated systems for each function.
Solution Approach 2:
The system implements feedback loops where the controller continuously receives location data from the tracking system, compares it against geofence boundaries, calculates arrival time estimates, and adjusts engine operation accordingly. This closed-loop feedback enables automated decision-making without constant human intervention.
Data Source
AI summary
A system and method includes a paving machine, a vehicle, and one or more controllers. The paving machine includes an engine for powering the paving machine and the vehicle is associated with the paving machine. The one or more controllers are configured to determine an estimated time of arrival for the vehicle at the paving machine based on a location of the vehicle; identify a startup time for the paving machine, wherein the startup time comprises a time period between starting the engine of the paving machine and an operational parameter of the paving machine reaching a threshold value; and generate an indication to shut down the engine of the paving machine if the startup time for the paving machine is less than the estimated time of arrival of the vehicle associated with the paving machine.