Unmanned aerial vehicle fuel pump work control system and control method
A work control and control method technology, which is applied in the turbine/propulsion fuel delivery system, the fuel control of the turbine/propulsion device, and the charging system, etc., can solve the time limit, complex control and structure of the auxiliary fuel supply system, and startup failures. and other problems, to achieve the effect of reducing the risk of shutdown, reducing the interface and weight, and reliable oil supply
Active Publication Date: 2021-01-15
XIAN AISHENG TECH GRP +1
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Problems solved by technology
The carburetor engine is specially equipped with a set of oil pump, electronic throttle and controller for air starting. The engine also needs to be equipped with a starter motor and is controlled by the auxiliary controller. The auxiliary fuel supply system has a time limit for working
This method is limited by the following conditions: the auxiliary fuel supply system is activated only after the engine is cut off and turned off, and there is a risk of starting failure; the carburetor engine backs up the electronic throttle and the dedicated controller, the system is complex and the functions are redundant; the control and structure are complex, and there is no Increased man-machine weight and reduced reliability
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[0037] see figure 1 — figure 2 The core idea of the present invention is to use an effective and reliable control system and control method to control the work of the dual oil pumps of the UAV powered by the aviation turbocharged piston engine.
[0038] The technical solution adopted by the invention is: setting an effective control and monitoring circuit; formulating a reasonable, simple and effective oil pump operation control logic; monitoring the operation of the double pumps in real time through the controller to ensure reliable operation of the engine.
[0039] An unmanned aerial vehicle fuel pump operation control system powered by an aviation turbocharged piston engine, which is characterized by: a control and detection circuit, a main oil pump, an auxiliary oil pump, a check valve for the main oil pump, a check valve for the auxiliary oil pump, and an aircraft power supply ;
[0040] The control and detection circuit includes: a first controller, a second control...
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The invention relates to an unmanned aerial vehicle fuel pump work control system and a control method. A main oil pump is connected with an auxiliary oil pump in series, a main oil pump one-way valveis connected with an auxiliary oil pump one-way valve in series, the main oil pump one-way valve is connected with the main oil pump in parallel, and the auxiliary oil pump one-way valve is connectedwith the auxiliary oil pump in parallel. Working of the main oil pump is independently controlled by a main oil pump measurement and control unit located in a first controller, working of the auxiliary oil pump is independently controlled by an auxiliary oil pump measurement and control unit located in a second controller, and host faults and failure of double-pump control during control of the same host are avoided. Oil pump work control logic is formulated for different work stages of the engine through double-pump oil supply, and when the oil supply pressure or flow is lower than a set safety threshold value, the auxiliary pump is started emergently. The control logic is simple, an independent control mechanism is simplified, responsibility is clear, control is reliable, it is guaranteed that the unmanned aerial vehicle reliably supplies oil to the engine ground and air, and the engine stably works; and through logic permission limitation, the misoperation closing risk of the oil pump is reduced.
Description
technical field [0001] The invention belongs to the technical field of fuel supply for drones, and in particular relates to a working control system and control method for a fuel pump for drones powered by an aviation turbocharged piston engine. Background technique [0002] For UAVs equipped with fuel engines, the main task of the fuel supply system is to ensure effective fuel supply to the engines in each flight state of the UAV. At present, most small and medium-sized drones are powered by aviation piston engines, and their fuel supply is mainly driven by electric fuel pumps. [0003] The early fuel supply of UAVs using aviation piston engines used a single pump in series with the fuel supply pipeline or a submerged single pump installed at the bottom of the fuel tank to supply fuel. Once the oil pump fails, it is difficult for the engine to maintain stable operation by self-priming. endanger the safety of drones. [0004] Recently, drones powered by aviation turbocharg...
Claims
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Login to View More IPC IPC(8): F02C9/30
CPCF02C9/30
Inventor 车海威尉星胡利文
Owner XIAN AISHENG TECH GRP