System and method capable of realizing single-engine training of double-engine helicopter

Abstract

The invention discloses a system and a method capable of realizing single-engine training of a double-engine helicopter. An engine electronic controller A is respectively connected with an engine A, an engine T0 sensor A, an engine training mode switch, an engine single-engined power switching switch, an engine electronic controller B, and a comprehensive information display system; the engine P0sensor A is arranged in the engine electronic controller A; and an engine electronic controller B is connected with an engine B, an engine training mode switch, an engine single-engined power change-over switch, an engine T0 sensor B and the comprehensive information display system, and the engine P0 sensor B is arranged in the engine electronic controller B. According to changes of the external atmospheric temperature and the atmospheric pressure height, the change of the transient output power of the engine during single-engined training and the change of the output power during stabilization are automatically adjusted, the similarity between the helicopter during single-engined training and the helicopter during real single-engined training is high, and the emergency handling capacity of a pilot during single-engine faults can be practically improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft design, and in particular relates to a system and method capable of realizing single-engine training of twin-engine helicopters. Background technique [0002] In the design of twin-engine or multi-engine helicopters, the influence of one engine failure on the helicopter needs to be considered. Especially for Category A aircraft, the effect on the helicopter of an engine failure during takeoff and landing needs to be considered. At this time, it is necessary to verify through flight tests that the pilot can effectively control the helicopter when a single engine fails, and according to the different flight stages, the helicopter can safely suspend takeoff, continue to take off, or complete landing and landing. This kind of flying technology is flying close to the flight limit, which requires the pilot to have high flying technology and flying experience. For this reason, the pilot needs to carry ...

AI Technical Summary

Problems solved by technology

However, this method has some disadvantages. First, during the engine power conversion process, the simulated engine failure is a controlled engine power drop, resulting in a relatively slow drop in torque, so that the helicopter's instantaneous speed drops, heading yaw, altitude drop and other dynamics There is a large difference between the response and the real single engine. The second is to protect the engine and prevent the use of excessive power that is harmful to the engine. The simulated single engine works at a power lower than the normal single engine operation, thus causing the single engine of the helicopter. The performance is lower than the actual one, resulting in unrealistic single-engine training, and it is difficult to conduct effective single-engine training for pilots, especially training pilots' emergency response capabilities when a single engine fails during takeoff and landing

The technical solution provided by some manufacturers is to reduce the power of one engine and increase the power of the other engine during single-engine training. Compared with the above method, the simulated single-engine power is closer to the real single-engine power, but there are still single-engine The problem that the hair simulation is not similar enough to the real single hair

[0005] At the same time, when the external atmospheric temperature T0 and atmospheric pressure altitude P0 change, the dynamic response of the helicopter and the engine changes. The above-mentioned technical solution does not change the control logic of the engine accordingly. At P0, the similarity between the single shot simulation and the real single shot further decreases

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