Track Temperature Control for Work Vehicle Speed Limiting
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Solution Overview
Problem
Current track-driven work vehicles face premature aging and damage due to excessive heating of rubber tracks from heavy loads and high speeds, leading to accelerated wear and tear, with existing systems unable to predict and control vehicle speed based on track component temperatures.
Innovation Solution
A system and method that monitors the operating temperature of track components, such as roller wheels, to predict the temperature of the tracks and automatically control vehicle speed by setting a maximum speed limit through a controller, preventing overheating by adjusting the transmission and engine operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heavy loads and high travel speeds are used, then productivity is improved, but track temperature increases causing premature aging and damage
Solution Approach 1:
The system performs preliminary monitoring of track temperature and predicts future temperature trends before excessive heating occurs. By detecting temperature changes in advance and comparing them against threshold values, the system can take preventive action by reducing speed before damage occurs, rather than waiting for actual overheating damage to manifest
Solution Approach 2:
The system continuously monitors track temperature and uses this feedback to automatically adjust vehicle speed. The controller receives temperature data from sensors, compares it to predetermined thresholds, and dynamically adjusts speed to maintain temperature within safe operating ranges, creating a closed-loop control system that balances productivity with track protection
2Duration of action of stationary object
If vehicle speed is reduced to prevent overheating, then track lifespan is extended, but productivity decreases
Solution Approach 1:
The system dynamically adjusts vehicle speed based on real-time track temperature conditions rather than using a fixed speed limit. When temperatures are within safe ranges, the vehicle can operate at higher speeds for maximum productivity. When temperature thresholds are approached, the system automatically reduces speed to prevent overheating, creating an adaptive speed control strategy that optimizes both productivity and track lifespan
Solution Approach 2:
The system changes the operating parameter of vehicle speed in response to temperature conditions. By monitoring temperature and adjusting speed as a variable parameter rather than a constant, the system can maintain high productivity during cool operating conditions while preventing damage during warmer conditions, effectively optimizing the trade-off between speed and track protection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents track overheating by reducing vehicle speed when temperature thresholds are exceeded, thereby extending the lifespan of the tracks and reducing maintenance costs.
Implementation Method 1
For example, the controller may be configured to monitor a load acting on the track, a current speed of the vehicle and a time at which the vehicle is traveling at the current speed
Implementation Method 2
The track for a track-driven work vehicle is often formed from an elastomeric material, such as rubber. While rubber-based tracks offer numerous advantages, such tracks are often subject to accelerated wear and tear due to excessive heating.
Implementation Method 3
For instance, heavy loads and/or high travel speeds may create hysteresis heating within a rubber track, which may cause premature aging of the underling rubber material.
Data Source
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AI summary
A method for automatically controlling vehicle speeds of a track-based work vehicle (10) may generally include receiving, with a computing device, one or more signals associated with an operating temperature for a track component of a track assembly (12, 14) of the track-based work vehicle (10), comparing, with the computing device, the operating temperature for the track component to a predetermined temperature threshold defined for the track component and automatically limiting, with the computing device, a vehicle speed of the track-based work vehicle (10) when the operating temperature for the track component exceeds the predetermined temperature threshold.