Machine Power Control Ratio Increase for Work Implement Efficiency
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Solution Overview
Problem
Conventional machine power control systems often operate at high idle levels, leading to unnecessary wear, vibrations, noise, and emissions, while still failing to provide fully satisfactory power to operators for work implements, especially when increased power is needed.
Innovation Solution
A control system that regulates power sources to provide a first level of power, allocates percentages of this power to different operations, and increases the power level to enhance the ratio of power allocated to work operations, allowing for greater efficiency and performance without excessive idle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the power source is operated at a high idle level to provide sufficient power for work implements, then the power availability for work operations is improved, but unnecessary wear, vibrations, noise and emissions increase
Solution Approach 1:
The control arrangement dynamically adjusts the idle level of the power source based on the actual power demand for work implements. Instead of operating continuously at a high idle level, the system transitions between different idle levels (e.g., from a first idle level to a second idle level) in response to operator demand, thereby providing sufficient power only when needed while minimizing harmful effects during normal operation.
Solution Approach 2:
The system changes the operating parameters of the power source, specifically the idle level, to match the actual power requirements. By adjusting the idle level parameter from a standard elevated level to a higher level only when work implement power is needed, the system optimizes the balance between power availability and harmful effects such as wear and emissions.
2Productivity
If the power source idle level is increased to provide more power for work implements, then the power delivery capability is improved, but the power source operates frequently at high idle levels causing wear and emissions
Solution Approach 1:
The control arrangement implements dynamic adjustment of the power source idle level based on real-time power demand for work implements. The system transitions from a standard elevated idle level to a higher idle level only when additional power is required for work operations, thereby improving productivity when needed while preserving power source durability by minimizing time spent at high idle levels.
3Speed
If the power source is set to a higher idle level to increase boom lift speed, then the work operation performance is improved, but the operator still perceives inadequate power even at maximum settings
Solution Approach 1:
The control arrangement changes the idle level parameter of the power source from a standard elevated level to a higher level in response to operator demand. This parameter change directly increases the power delivery capability, thereby improving boom lift speed and overall work operation performance to meet operator expectations.
Solution Approach 2:
The system incorporates feedback from the operator's power demand signal to adjust the idle level. When the operator indicates a need for additional power (even at maximum boom lift settings), the control arrangement responds by increasing the idle level, thereby closing the feedback loop and ensuring operator satisfaction through improved perceived performance.
Data Source
AI summary
A control system for a machine having a power source configured to provide power, a number of implements including a work implement, configured to provide operations, and a number of power transmitting paths configurable to selectively make power available to the implements to perform operations. The control system may include a control arrangement configured to regulate the power source to provide a first level of available power, to configure a first power transmitting path to make a percentage A1 of said first level of power available to provide a first operation, and to configure a second power transmitting path to make a percentage A2 of said first level of power available to provide a second operation, at least the second operation being a work operation. The control arrangement may further be configured to increase said first level of available power of said power source to a second level of available power, to configure the first power transmitting path to make a percentage B1 of said second level op power available to provide said first operation, and to configure the second power transmitting path to make a percentage B2 of said second level of power available to provide said second operation, such that the ratio B2/B1 is greater than the ratio A2/A1.