Engine Output Control Device Dynamic Load Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing engine output control devices face issues with fuel consumption deterioration and overheating due to excessive gross output settings, which can reduce the performance of auxiliary machinery.
Innovation Solution
A control device that calculates the total load power by accounting for lost power consumed by auxiliary machines and adjusts the gross output power to prevent excessive fuel consumption and maintain main output performance, using a threshold value to manage power distribution between main and auxiliary machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the gross output of the engine is set to a large value to ensure the power required for working, then the main output for working is ensured, but the fuel consumption deteriorates
Solution Approach 1:
The patent applies dynamics by making the gross output power setting dynamic rather than fixed. The control device continuously adjusts the gross output power based on real-time total load calculations, which vary as auxiliary machinery is activated or deactivated. This dynamic adjustment ensures the engine operates at the minimum necessary power level, preventing excessive fuel consumption while maintaining required working power.
Solution Approach 2:
The patent changes the parameter of gross output power based on operating conditions. By calculating the total load (main load + auxiliary load) and adjusting the gross output power accordingly, the system adapts to different operational states. This parameter change approach allows the engine to operate efficiently across varying load conditions without unnecessary fuel consumption.
2Loss of energy
If the gross output is limited to reduce fuel consumption, then the fuel consumption improves, but the output to auxiliary machinery such as radiator fan is reduced, causing overheating
Solution Approach 1:
The patent implements feedback by continuously monitoring the total load including auxiliary machinery requirements and adjusting the gross output power accordingly. The control device calculates the sum of main load and auxiliary load, then sets the gross output power to match this total load. This feedback mechanism ensures that when auxiliary machinery such as radiator fans are activated, the engine output is increased sufficiently to prevent overheating, while avoiding excessive power output when auxiliary loads are minimal.
3Power
If the gross output power is set equal to total load power in low power region, then the main output power is ensured, but the fuel consumption increases when auxiliary machinery is operated
Solution Approach 1:
The patent applies partial action by setting the gross output power equal to the total load power only in the low power region when auxiliary machinery is not operating or operating at minimal levels. When auxiliary machinery requires significant power, the system transitions to a different control mode that prevents excessive fuel consumption. This partial application of the control strategy optimizes the balance between maintaining main output power and managing fuel consumption across different operating conditions.
Data Source
AI summary
The gross output power of an engine distributed to at least one main machine and one auxiliary machine. A total load value calculation unit calculates the value of the lost power consumed by the auxiliary machine, and calculates the value of total load power by adding to this lost power value a target value for the main output power of the engine to be distributed to the main machine. A gross output value control unit controls the value of the gross output power so that the value of the gross output power becomes equal to the value of the total load power when the value of the total load power is less than a predetermined threshold value, and so that the value of the gross output power becomes equal to the above described threshold value when the value of the total load power is greater than the threshold value.