CN115145176A - A kind of aircraft cockpit cover opening and closing control device and control method - Google Patents

Abstract

The invention relates to an aircraft cockpit cover opening and closing control device and a control method, belonging to the technical field of aircraft electromechanical control. An aircraft cockpit canopy opening and closing control device, comprising a front canopy opening and closing switch and a rear canopy opening and closing switch respectively arranged in the front cockpit and the rear cockpit of the aircraft, and the canopy opening and closing switches can realize the opening, closing and The state switching of three neutral positions; also includes a hatch opening and closing button box arranged outside the cockpit, which includes the opening and closing buttons; when the canopy is in the open or closed state, through the hatch opening and closing button box to realize Canopy opening and closing controls. The invention has the following advantages: realizes the integration of the opening and closing control of the cockpit cover into the electromechanical load power distribution equipment, reduces the number of airborne finished products and the weight of the finished products, improves the execution efficiency of the electric mechanism, and the relevant parameters can be stored and recorded in real time , which is convenient for the maintenance of the canopy system in the later stage.

Description

A kind of aircraft cockpit cover opening and closing control device and control method

technical field

The invention relates to an aircraft cockpit cover opening and closing control device and a control method, belonging to the technical field of aircraft electromechanical control.

Background technique

Most of the existing aircraft canopy opening and closing use a separate "relay control box" and "canopy control box" to realize the control function of the canopy lift motor mechanism. The opening and closing sequence control of the hatch is realized by the relay inside the relay control box through the interlocking method. The lift motor mechanism at the rear end is directly driven by the canopy control box. The control box has a single function. The transient value of the driving voltage at the rear end exceeds the relay resistance When the upper limit is pressed, the relay contacts will be ablated for a long time on and off, which is not conducive to the maintenance of the canopy system in the later stage, and cannot meet the requirements of miniaturization, integration and reliability of airborne products.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an aircraft cockpit cover opening and closing control device, which replaces the traditional single-function control box and integrates the cockpit cover opening and closing control function into the electromechanical load power distribution equipment for unified management.

In order to achieve the above purpose, the present invention adopts the following technical solutions: an aircraft cockpit canopy opening and closing control device, comprising a front canopy opening and closing switch, a rear canopy opening and closing switch respectively arranged in the front cockpit and rear cockpit of the aircraft, The lid opening and closing switch can realize the state switching of three positions: open, closed and neutral; it also includes a hatch open and close button box arranged outside the cockpit, which includes open and close buttons; when the canopy is open or closed In the state, the opening and closing of the canopy can be controlled through the canopy opening and closing button box.

Preferably, the canopy opening and closing functions of the front hatch cover opening and closing switch, the rear hatch opening and closing switch and the hatch cover opening and closing button box are integrated into the electromechanical load power distribution equipment.

Preferably, the front hatch cover open/close switch and the rear hatch cover open/close switch are lift switches. When the switch is in the neutral position, the pilot only needs to lift the switch in the vertical direction to unlock it, then move forward or backward. The canopy can be opened or closed by flipping the switch.

Another object of the present invention is to provide a method for controlling the opening and closing of an aircraft canopy that can be optimized, using the above-mentioned device for controlling the opening and closing of an aircraft canopy, including the following steps:

(1) Initialization of electromechanical load power distribution equipment;

(2) The electromechanical load power distribution equipment conducts data collection, and collects the signal of the hatch cover opening, closing and unlocking in place;

(3) When the collected "canopy opening, closing and unlocking in-position signal" is valid, real-time collection of the discrete signals of the cabin cabin, outer cabin opening and closing, as well as the opening or closing in-position signal of the lift motor mechanism;

(4) The canopy opening and closing control command is obtained through comprehensive calculation, and the opening and closing control signal is output to drive the rear motor mechanism to perform extension and retraction operations;

(5) After the cockpit cover is lifted in place, the electromechanical load power distribution equipment releases the residual energy of the internal coil of the motor mechanism through the internal energy release circuit.

Preferably, in step (1), when the electromechanical load power distribution equipment is initialized or faulty, the output control signal: "the extension control signal of the electric actuator" is invalid, and the "retraction control signal of the electric actuator" is invalid.

Preferably, in step (2), when the in-position signal for opening, closing and unlocking of the canopy is invalid, the output control signal: "the control signal for extending the electric actuator of the lift of the cabin cover" is invalid, and the "control signal for retracting the electric actuator" is invalid.

Preferably, when the "open" command signal and the "close" command signal of the canopy cover are valid at the same time, the control signal interlock circuit is used to realize the action of the canopy lift electric mechanism to maintain the previous state, that is, the control logic executes the opening or closing of the canopy cover. operate).

Compared with the prior art, the present invention has the following advantages: the control of the opening and closing of the cockpit cover is integrated into the electromechanical load power distribution equipment, the traditional single-function relay box control is cancelled, and the electromechanical load power distribution equipment collects the opening and closing of the cockpit cover. The closing command and the opening and closing in-position signal realize the lifting control of the canopy, which reduces the number of airborne finished products and the weight of the finished products, and improves the execution efficiency of the electric mechanism. The relevant parameters can be stored and recorded in real time, which is convenient for the maintenance of the canopy system later. .

Description of drawings

FIG. 1 is a control flow chart of an embodiment of the present invention.

Detailed ways

The present invention is described in further detail below in conjunction with accompanying drawing 1: a method for controlling the opening and closing of an aircraft cockpit cover, cancels the relay control box with a single function, and integrates the opening and closing function of the cockpit cover in the electromechanical load power distribution equipment for management. After the pilot pushes and pulls the lock lever inside the cockpit to unlock the canopy in place, when the electromechanical load power distribution equipment collects the "canopy opening and closing unlocking in-position signal" is valid, it is used as the access condition for the canopy opening and closing control, and the cabin cockpit is collected in real time. The discrete signal of inside and outside cabin opening and closing, as well as the opening or closing position signal of the lift motor mechanism, after comprehensive calculation, the hatch cover opening and closing control command is obtained, and the opening and closing control signal is output to drive the rear motor mechanism to perform extension and retraction. Return operation, after the cockpit cover is lifted in place, the electromechanical load power distribution equipment releases the residual energy of the internal coil of the motor mechanism through the internal energy release circuit.

The specific control technical means of the present invention are as follows (wherein the interpretation of the hatch cover opening and closing instructions, the hatch cover opening and closing control requirements, initialization and fault handling are all controlled and managed by the electromechanical load power distribution equipment).

1. Interpretation of hatch cover opening and closing instructions

1) When the "Hatch Cover Open Command Signal" is invalid and the "Hatch Cover Close Command Signal" is invalid, the "Hatch Cover Open" command and the "Hatch Cover Close" command are invalid;

2) When the "Hatch Cover Open Command Signal" is valid and the "Hatch Cover Close Command Signal" is invalid, the "canopy open" command is valid, and the canopy "close" command is invalid;

3) When the "hatch cover opening command signal" is invalid and the "hatch cover closing command signal" is valid, the "canopy open" command is invalid and the canopy "close" command is valid;

4) When the "Hatch lid open command signal" is valid and the "Hatch lid close command signal" is valid, the command of "Open" and "Close" of the canopy keep the previous state.

2. Hatch cover opening and closing control requirements

1) When the hatch cover opening and closing unlocking position signal is invalid

Output control signal: "canopy lift electric actuator extension control signal" is invalid, "electric actuator retraction control signal" is invalid.

2) When the hatch cover is open, closed, and unlocked in place, the signal is valid

When the canopy "open" command is valid and the "canopy lift electric actuator extension signal" is invalid, the output control signal: "electric actuator extension control signal" is valid, "electric actuator retraction control signal" is invalid.

When the canopy "close" command is valid and the "canopy lift electric actuator retraction position signal" is invalid, the output control signal: "electric actuator extension control signal" is invalid, "electric actuator retraction control signal" is valid.

When the "open" command and the "close" command of the canopy cover are valid at the same time, the operation of the canopy lift motor mechanism is realized through the control signal interlock circuit to maintain the previous state.

In other cases, the output control signal: "Electric actuator extension control signal" is invalid, "Electric actuator retraction control signal" is invalid.

3. Initialization and troubleshooting

When the electromechanical load power distribution equipment is initialized or faulty, the output control signal: "electric actuator extension control signal" is invalid, "electric actuator retraction control signal" is invalid.

details as follows:

Inside the cockpit of a certain type of aircraft, a front hatch cover switch and a rear hatch cover switch are respectively arranged, and a hatch cover switch button box is arranged outside the cockpit. The opening and closing switch and the opening and closing switch of the rear hatch cover are all single-pole three-position switches. The switch is a pull-up switch. The three positions correspond to the three states of open cabin, neutral and closed cabin, which can realize open cabin, close cabin and The three neutral positions are switched. When the switch is in the neutral position, the pilot only needs to lift the switch in the vertical direction to unlock it, and then toggle the switch forward or backward to open or close the canopy; There are 2 open and close buttons in the open and close button box. When any switch in the cabin is turned to the open position or the "open cabin" button of the outside button box is pressed, the "canopy cover open command signal" is valid. When any switch in the cabin is turned to the close position or the "close cabin" button of the outside button box is pressed, the "canopy cover close command signal" is valid. The external canopy opening and closing button box realizes the control of opening and closing the canopy.

When the "canopy opening and closing unlocking in-position signal" is valid, the electromechanical load power distribution equipment realizes the entire operation process of opening and closing the canopy through the following steps.

(1) The "signal of the electric mechanism extending into position" is invalid, and the realization of the opening function of the cockpit cover:

When the "canopy cover opening command signal" is valid and the "cockpit cover closing command signal" is invalid, the electromechanical load power distribution equipment outputs an opening control signal to the motor mechanism to realize the opening function of the canopy cover. When the "canopy cover extension signal" is valid , The electromechanical load power distribution equipment releases the residual energy of the motor coil inside the motor mechanism through the energy release circuit, and stops outputting the opening control signal to the outside.

(2) The "motor mechanism retracting position signal" is invalid, and the realization of the closing function of the cockpit cover:

When the "canopy cover closing command signal" is valid and the "cockpit cover opening command signal" is invalid, the electromechanical load power distribution equipment outputs a closing control signal to the motor mechanism to realize the closing function of the canopy cover. When the "canopy cover retracting position signal" is valid , The electromechanical load power distribution equipment releases the residual energy of the motor coil inside the motor mechanism through the energy release circuit, and stops outputting the shutdown control signal to the outside.

Claims (7)

1. The utility model provides an aircraft cockpit lid start and stop control equipment which characterized in that: the device comprises a front cabin cover opening and closing switch and a rear cabin cover opening and closing switch which are respectively arranged on a front cabin and a rear cabin of the airplane, wherein the cabin cover opening and closing switches can realize state switching of three positions of cabin opening, cabin closing and vertical position; the cabin cover opening and closing button box is arranged outside the cabin and comprises a cabin opening button and a cabin closing button; when the canopy is in an open or closed state, the canopy opening and closing button box is used for controlling the opening and closing of the canopy.

2. An aircraft canopy opening and closing control apparatus as claimed in claim 1, wherein: the opening and closing functions of the front cabin cover opening and closing switch, the rear cabin cover opening and closing switch and the cabin cover opening and closing button box are integrated in the electromechanical load distribution equipment.

3. An aircraft canopy opening and closing control apparatus according to claim 1, wherein: the front cabin cover opening and closing switch and the rear cabin cover opening and closing switch are both pull-type switches, when the switches are located at the neutral position, a pilot only needs to pull the switches in the vertical direction to unlock the switches, and then the switches are shifted forwards or backwards to realize the opening or closing control operation of the cabin covers.

4. An opening and closing control method for an aircraft canopy is characterized by comprising the following steps: the aircraft canopy opening and closing control device according to any one of claims 1 to 3, comprising the steps of:

(1) Initializing electromechanical load power distribution equipment;

(2) The electromechanical load power distribution equipment acquires data and acquires a cabin cover opening and closing unlocking in-place signal;

(3) When the acquired cabin cover opening and closing in-place unlocking signal is effective, discrete quantity signals of an inside cabin, an outside cabin and a closed cabin of the cabin and an opening or closing in-place signal of the lifting electric mechanism are acquired in real time;

(4) Comprehensively resolving to obtain a canopy opening and closing control instruction, and outputting an opening and closing control signal to drive a rear end electric mechanism to perform stretching and retracting operations;

(5) After the canopy is lifted to the proper position, the electromechanical load power distribution equipment releases the residual energy of the coil in the electric mechanism through the internal energy release circuit.

5. The aircraft canopy opening and closing control method of claim 4, wherein: in step (1), when the electromechanical load distribution equipment is initialized or fails, outputting a control signal: the 'electric actuator extending control signal' is invalid, and the 'electric actuator retracting control signal' is invalid.

6. An aircraft canopy opening and closing control method according to claim 4, wherein: in the step (2), when the opening and closing of the hatch cover is invalid, outputting a control signal: the electric actuator extending control signal of the canopy lifting is invalid, and the electric actuator retracting control signal is invalid.

7. The aircraft canopy opening and closing control method of claim 4, wherein: when the opening command and the closing command of the canopy are simultaneously effective, the canopy lifting electric mechanism is controlled by the control signal interlocking circuit to move to keep the previous state.

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