Axle Fluid Cooling Control Based on Temperature and Viscosity
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Solution Overview
Problem
Conventional axle fluid cooling systems in agricultural vehicles operate continuously, wasting energy as they cool the fluid regardless of temperature and viscosity needs, leading to inefficiency and resource wastage.
Innovation Solution
A method and system for selectively cooling axle fluid based on temperature and viscosity criteria, using a fluid cooling system that includes a pump, heat exchanger, and cooling fan, controlled by a controller to operate only when necessary, and a filter for maintaining fluid quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the fluid cooling system operates continuously, then the axle fluid temperature is consistently controlled, but energy is wasted by cooling the fluid regardless of temperature and viscosity needs
Solution Approach 1:
The cooling system transitions from static continuous operation to dynamic conditional operation. The controller dynamically adjusts the cooling system's operation based on real-time monitoring of axle fluid temperature and viscosity, activating cooling only when temperature exceeds threshold or viscosity indicates overheating, thereby eliminating unnecessary energy consumption while maintaining effective temperature control.
Solution Approach 2:
The system implements feedback control by continuously monitoring axle fluid temperature and viscosity sensors, comparing readings against predetermined thresholds, and adjusting cooling system operation accordingly. This closed-loop feedback mechanism ensures cooling is applied only when actually needed, resolving the contradiction between maintaining temperature control and reducing energy waste.
2Temperature
If the cooling system operates continuously, then temperature control is maintained, but filter life is reduced due to unnecessary filtration cycles
Solution Approach 1:
The filtration operation transitions from continuous static operation to dynamic conditional operation synchronized with cooling cycles. The filter operates only when the cooling system is actively cooling the fluid, which occurs only when temperature or viscosity thresholds are exceeded. This dynamic coordination extends filter life by eliminating unnecessary filtration cycles while maintaining effective temperature control when needed.
Solution Approach 2:
The filtration system adopts periodic action by activating filtration only during periods when cooling is required, rather than continuous operation. This periodic operation pattern, triggered by temperature and viscosity conditions, reduces cumulative filter usage and extends filter life while ensuring filtration occurs during all necessary cooling cycles.
3Power
If the cooling system is sized for continuous operation, then adequate cooling capacity is available, but system size and cost increase
Solution Approach 1:
The system applies partial action by operating the cooling system only when needed rather than continuously at full capacity. This allows the use of a smaller, more cost-effective cooling system that provides adequate cooling capacity during active periods without the excessive size and cost of a system designed for continuous maximum operation. The controller activates cooling partially, only when temperature or viscosity thresholds indicate necessity.
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
This approach reduces energy consumption, prolongs filter life, and optimizes system size and cost by ensuring cooling and filtration occur only when needed, enhancing the efficiency and longevity of the vehicle's axle fluid management.
Implementation Method 1
a heat exchanger operable to transfer heat between the axle fluid and a second fluid
Implementation Method 2
a cooling fan operate to engage the second fluid with the heat exchanger
Data Source
AI summary
Systems and methods for selectively cooling a vehicle fluid are disclosed. Particularly, systems and methods for selectively cooling axle fluid of a vehicle are disclosed. By selectively cooling the axle fluid, energy is conserved by avoiding continuously circulating the axle fluid through a cooling system when a temperature of the axle fluid does not satisfy a selected criteria. The systems and methods also disclose selectively heating a fluid, such as an axle fluid, such as upon startup of the vehicle, and selectively cooling the axle fluid once operation of a power source of the vehicle, such as an engine of the vehicle, has ceased.