Hydraulic Transmission Control System for Fracking Launch Conditions
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Solution Overview
Problem
The increasing power requirements in the fracking industry demand more advanced transmission systems for powered machines and vehicles, necessitating improved clutch control, cooling, and fluid management to enhance performance and efficiency.
Innovation Solution
A hydraulic control system is implemented, featuring a main hydraulic circuit, lube circuit, cooler circuit, first and second hydraulic pumps, a hydraulic valve, electronic solenoid, and a controller to manage hydraulic pressure and fluid flow, allowing for selective engagement and disengagement of clutches, and efficient cooling and lubrication during launch conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If hydraulic pressure is provided to the first clutch during launch condition, then clutch engagement and power transmission are improved, but hydraulic pressure loss to cooling and lubrication circuits increases
Solution Approach 1:
The hydraulic system is divided into separate circuits: a first hydraulic pump dedicated to clutch engagement and a second hydraulic pump dedicated to cooling and lubrication. This segmentation allows independent control of hydraulic pressure to the clutch versus the cooling/lubrication circuits, preventing pressure loss to non-essential circuits during launch when power transmission is critical.
Solution Approach 2:
The system dynamically switches hydraulic circuit configurations based on operating conditions. During launch condition, the first hydraulic pump is activated to provide pressure to the clutch while the second pump handles cooling/lubrication. This dynamic switching optimizes hydraulic pressure distribution to match real-time power transmission needs.
2Device complexity
If a single hydraulic pump is used, then device complexity is reduced, but insufficient hydraulic pressure control for both clutch engagement and cooling/lubrication is achieved
Solution Approach 1:
The single hydraulic pump is replaced with two separate hydraulic pumps, each dedicated to specific functions. The first pump serves clutch engagement and the second serves cooling and lubrication. This segmentation improves reliability by ensuring each circuit receives adequate hydraulic pressure independently, while the modular design keeps system complexity manageable.
Solution Approach 2:
Each hydraulic pump serves multiple functions within its dedicated circuit. The first pump provides hydraulic pressure for clutch engagement and power transmission. The second pump provides hydraulic pressure for both cooling and lubrication functions. This multi-functionality approach maintains reliability while avoiding the need for even more specialized components.
3Temperature
If hydraulic pressure is directed to cooling and lubrication circuits during launch, then clutch cooling and lubrication are improved, but power transmission efficiency decreases
Solution Approach 1:
The system dynamically allocates hydraulic pressure based on operational phase. During launch condition, the first hydraulic pump prioritizes clutch engagement while the second pump provides necessary cooling and lubrication. After launch, the system can shift hydraulic pressure allocation to prioritize cooling if thermal conditions require it. This dynamic allocation maintains both power transmission efficiency and thermal management.
Solution Approach 2:
The dual hydraulic pump system acts as an intermediary mechanism that decouples the trade-off between power transmission and thermal management. By providing separate hydraulic pressure sources, the system can simultaneously satisfy both clutch engagement requirements and cooling/lubrication requirements without compromising either power transmission efficiency or thermal management.
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 system effectively manages hydraulic pressure and fluid flow to enhance transmission performance, ensuring efficient power transmission and cooling, thereby meeting the high power demands of the fracking industry while maintaining optimal clutch operation.
Implementation Method 1
an electronic solenoid disposed in fluid communication with the hydraulic valve
Implementation Method 2
a first hydraulic pump, a second hydraulic pump
Implementation Method 3
providing hydraulic pressure from at least one of the first hydraulic pump and the second hydraulic pump to the hydraulic valve; controlling the hydraulic pressure through the hydraulic valve to the first clutch
Data Source
AI summary
The present disclosure provides a method of controlling a transmission of a powered vehicle. The method includes determining if the powered vehicle is in a launch condition, activating a solenoid, controlling a hydraulic valve to a first position, and providing hydraulic pressure from at least one of a first hydraulic pump and a second hydraulic pump to the hydraulic valve. The method also includes controlling the hydraulic pressure through the hydraulic valve to a first clutch, determining if the launch condition is complete, deactivating the solenoid after the launch condition is complete, controlling the hydraulic valve from the first position to a second position, and substantially limiting hydraulic pressure from passing through the hydraulic valve to the first clutch.