Turbine Engine Propulsion Control With a Single Throttle Lever
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Solution Overview
Problem
Turbine engine control systems require dual throttle levers to adjust turbine engine speed and propulsor speed, increasing pilot workload and complexity.
Innovation Solution
A single throttle lever control system that integrates turbine engine speed and propulsor speed control, utilizing a hybrid electric propulsion system with a data communication bus for seamless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dual throttle levers are used to control turbine engine speed and propulsor speed separately, then control precision is improved, but device complexity and pilot workload increase
Solution Approach 1:
The patent combines two separate throttle levers into a single throttle lever that controls both the turbine engine speed and propulsor speed. The single lever integrates multiple control functions that were previously distributed across two separate controls, reducing device complexity while maintaining precise control through electronic management systems.
Solution Approach 2:
The single throttle lever is designed to perform multiple control functions simultaneously - it controls both the turbine engine speed and the propulsor speed. This multi-functional control mechanism eliminates the need for separate dedicated controls for each parameter, reducing overall system complexity.
2Measurement precision
If dual throttle levers are used to control turbine engine speed and propulsor speed separately, then control precision is improved, but pilot workload increases
Solution Approach 1:
By merging the control of turbine engine speed and propulsor speed into a single throttle lever, the patent reduces the number of control inputs required from the pilot. This integration maintains precise control capabilities while significantly reducing pilot workload and operational complexity.
3Device complexity
If a single throttle lever is used to control both turbine engine speed and propulsor speed, then device complexity is reduced, but control precision may deteriorate
Solution Approach 1:
The patent introduces an electronic control system and data communication bus as intermediaries between the single throttle lever and the multiple controlled parameters. These intermediary systems process the pilot's input and precisely regulate both turbine engine speed and propulsor speed, maintaining control precision despite the simplified mechanical interface.
Solution Approach 2:
The patent replaces complex mechanical control linkages with electronic control systems. The electronic management system uses sensors, processors, and actuators to precisely control engine and propulsor parameters based on throttle lever input, achieving accurate control without the mechanical complexity of dual levers.
Data Source
AI summary
A propulsion system and a method of operating the propulsion system. The propulsion system includes a first turbine engine, a second turbine engine, and a lubrication system. The lubrication system supplies a lubricant to the first turbine engine and the second turbine engine. The lubrication system includes one or more first lubricant sensors that sense information about the lubricant to the first turbine engine and one or more second lubricant sensors that sense information about the lubricant to the second turbine engine. The first controller and the second controller receive the information of the lubricant from the first lubricant sensors and the second lubricant sensors. The first controller controls the lubrication system to supply the lubricant to the second turbine engine based on the sensed information about the lubricant in the second turbine engine received at the first controller when the second turbine engine is shut down.