Control system and control method for operating reverse thrust control and actuation system

Abstract

The invention provides a control system for operating a reverse thrust control and actuation system. The control system comprises an engine control system connected with a reverse thrust control and actuation system and a plane avionics system; an engine interface control unit connected with the engine control system and the plane avionics system, and connected with the reverse thrust control and actuation system by a distribution contractor; a reverse thrust hood lock; and an accelerator table component including an accelerator rod, a first microswitch and a second microswitch. The first microswitch and the second microswitch are closed or cut off by moving the accelerator rod; the first microswitch and the second microswitch are connected with the engine interface control unit; the first microswitch is connected with the reverse thrust hood lock by a relay. The invention also provides a control method for operating a reverse thrust control and actuation system by the control system, so that the system structure is simplified and the inherent disadvantages of the hydraulic drive reverse thrust device are solved.

Description

technical field [0001] The invention relates to a control system and a control method for operating a reverse thrust control and actuation system of an aircraft. Background technique [0002] The aircraft reverse thrust control and actuation system is used to generate reverse thrust during aircraft landing and rejected takeoff. After the aircraft lands, the anti-thrust control and actuation system of the aircraft operates under the command of the control system to block the external airflow and force the external airflow to flow in the opposite direction, thereby generating reverse thrust. However, if the aircraft's anti-thrust control and actuation system is accidentally deployed during flight, it will lead to a catastrophic safety accident. [0003] In order to realize the control of the aircraft reverse thrust control and actuation system opening and closing, it is necessary to design a reasonable control system. The aircraft reverse thrust control and actuation system ...

AI Technical Summary

Problems solved by technology

In the prior art, the vast majority of aircraft reverse thrust control and actuation systems are driven by hydraulic sources, and the actuation of aircraft reverse thrust control and actuation systems is realized through the control of servo hydraulic energy and its flow direction. The hydraulic pipeline and electrical circuit are realized, the structure is complicated, and the maintainability is poor

Under extreme environmental conditions (such as low temperature weather), due to the inherent performance degradation of the hydraulic source, the control and actuation process of the aircraft reverse thrust control and actuation system will obviously deviate from the normal performance, which will adversely affect the normal flight of the aircraft

In addition, the use of hydraulic oil increases the risk of flammable liquid leakage in the nacelle, and adds new requirements to the design of nacelle ventilation and liquid drainage and fire protection systems

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