Automatic Engine Speed Adjustment for Powered Implements
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Solution Overview
Problem
Powered implements that include levers for engaging and disengaging driven members often operate at high engine speeds when the driven members are idle, leading to noise, increased wear, and decreased energy efficiency.
Innovation Solution
A powered implement with an automatic engine speed adjustment mechanism that responds to the engagement or disengagement of driven members, using a combination of manual actuators and speed control levers to adjust engine speed, allowing the engine to idle while driven members are not in use, thereby reducing noise and wear while maintaining energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the engine operates at high speed to ensure immediate responsiveness when driven members are engaged, then the responsiveness and power delivery are improved, but noise, wear, and energy consumption increase when driven members are idle
Solution Approach 1:
The patent applies dynamics by making the engine speed adjustable and variable rather than fixed. The system dynamically changes engine speed between high and low states based on the operational requirements of driven members, allowing the engine to operate at high speed when power is needed and low speed when idle, thereby reducing noise and wear during idle periods while maintaining responsiveness when needed
Solution Approach 2:
The patent changes the operating parameter of engine speed based on the state of driven members. When driven members are engaged, the engine operates at high speed; when driven members are disengaged, the engine automatically reduces to low speed. This parameter change resolves the contradiction by adapting engine speed to actual operational needs, reducing harmful factors during idle periods
2Power
If the engine operates at high speed continuously to maintain readiness for immediate operation, then the power availability is improved, but energy efficiency decreases when driven members are not in use
Solution Approach 1:
The system dynamically adjusts engine speed based on the engagement state of driven members, maintaining high power availability when needed while reducing energy consumption during idle periods. The engine can quickly transition between high and low speed states, ensuring power readiness when driven members are engaged while improving energy efficiency when they are not
Solution Approach 2:
The engine operating speed parameter is changed based on operational requirements. When driven members are engaged, the engine operates at high speed for maximum power output; when disengaged, the engine automatically reduces to low speed for energy efficiency. This dynamic parameter adjustment resolves the contradiction between power availability and energy efficiency
3Object-generated harmful factors
If the engine speed is automatically adjusted based on driven member engagement, then noise and wear are reduced, but the device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent employs feedback mechanisms where the engagement state of driven members is detected and used to automatically control engine speed adjustment. The system receives feedback about whether driven members are engaged or disengaged and automatically responds by adjusting engine speed accordingly, reducing noise and wear without requiring complex manual intervention
Solution Approach 2:
The system performs self-service by automatically adjusting engine speed based on the operational state of driven members without requiring external control. The engine control mechanism responds autonomously to the engagement/disengagement of driven members, reducing noise and wear while minimizing the need for additional complex control systems
Data Source
AI summary
An apparatus and method move a speed control lever of an engine automatically in response to movement of a manual actuator to engage a driven member.