A closed loop interlock catapult access cleaning control system and method

Abstract

The application belongs to the field of aircraft ejection escape system, and particularly relates to a closed-loop interlocking ejection passage cleaning control system and method. The system comprises an ejection seat, a passage actuating device, a canopy, a single-dual state selector, a three-in-two-out shunt and a detonation and door control box. The closed-loop interlocking ejection passage cleaning control system can be used in an aircraft ejection escape system, has electronic signal and detonation signal dual-redundancy control, and can ensure that there is no obstacle in the ejection passage before ejection.

Description

Technical Field

[0001] This application belongs to the field of aircraft ejection escape systems, and specifically relates to a closed-loop interlocked ejection channel cleaning control system and method. Background Technology

[0002] When an aircraft is in an emergency and the pilot ejects from the cabin using the ejection seat, the ejection escape system must ensure that the ejection lane is free of obstructions to prevent injury or death to the pilot due to impact with an obstacle during ejection. Due to limited cabin space on some aircraft, some equipment may obstruct the ejection lane. Therefore, after the ejection seat is activated but before the ejection tubes actuate, any equipment obstructing the ejection lane should be cleared.

[0003] Therefore, it is desirable to have a technical solution to overcome or at least mitigate one of the aforementioned defects of the prior art. Summary of the Invention

[0004] The purpose of this application is to provide a closed-loop interlocked ejection channel cleaning control system and method to solve at least one problem existing in the prior art.

[0005] The technical solution of this application is:

[0006] The first aspect of this application provides a closed-loop interlocked ejection channel cleaning control system, comprising:

[0007] The ejection seat includes a left ejection seat, a right ejection seat, and a rear ejection seat. The left ejection seat and the right ejection seat are each equipped with a program controller and a detonation generator. The rear ejection seat is equipped with a program controller. The program controller is used to output an ejection start electronic signal. The detonation generator is used to output an ejection start detonation signal. The ejection start detonation signal output by the detonation generator in the left ejection seat and the right ejection seat is passed through a timer to output a detonation delay signal.

[0008] The channel actuation device includes a left channel actuation device and a right channel actuation device. Both the left and right channel actuation devices are equipped with an electric detonator, a detonation initiator, and a detonation generator. The electric detonator on the left channel actuation device can receive the ejection initiation electronic signal output from the left ejection seat and output a channel clearing completion electronic signal to the left ejection seat. The detonation generator on the left channel actuation device is also used to output a channel clearing completion detonation signal. Similarly, the electric detonator on the right channel actuation device can receive the ejection initiation electronic signal output from the right ejection seat and output a channel clearing completion electronic signal to the right ejection seat. The detonation generator on the right channel actuation device is also used to output a channel clearing completion detonation signal.

[0009] The cockpit canopy includes a left cockpit canopy, a right cockpit canopy, and a rear cockpit canopy. Each of the left, right, and rear cockpit canopies is equipped with an electric detonator and a detonation generator. The electric detonator on the left cockpit canopy receives the ejection activation electronic signal from the left ejection seat and outputs a cutting and throwing electronic signal to the left ejection seat. The detonation generator on the left cockpit canopy also outputs a cutting and throwing detonation signal. Similarly, the electric detonator on the right cockpit canopy receives the ejection activation electronic signal from the right ejection seat and outputs a cutting and throwing electronic signal to the right ejection seat. The detonation generator on the right cockpit canopy also outputs a cutting and throwing detonation signal. Likewise, the electric detonator on the rear cockpit canopy receives the ejection activation electronic signal from the rear ejection seat and outputs a cutting and throwing electronic signal to the rear ejection seat. The detonation generator on the rear cockpit canopy also outputs a cutting and throwing detonation signal to the rear ejection seat.

[0010] A single / dual-state selector is provided with a detonation generator. The single / dual-state selector can interact with the program controller of each ejection seat to exchange ejection start electronic signals. The detonation generator is used to output ejection start detonation signals.

[0011] The three-input two-output splitter has three input terminals and two output terminals. The three input terminals can respectively receive the ejection start detonation signals output by the detonation generators of the left ejection seat, the right ejection seat, and the single / dual-state selector. The two output terminals can respectively send ejection start detonation signals to the detonation initiators of the left channel actuator and the right channel actuator.

[0012] The detonation and door control box includes two No. 1 detonation and door control boxes and two No. 2 detonation and door control boxes. The inputs of the first No. 1 detonation and door control box are the cutting and throwing detonation signal output from the left cockpit canopy and the channel clearing completion detonation signal output from the left channel actuator; the output is a channel feedback signal. The inputs of the second No. 1 detonation and door control box are the cutting and throwing detonation signal output from the right cockpit canopy and the channel clearing completion detonation signal output from the right channel actuator; the output is a channel feedback signal. The inputs of the first No. 2 detonation and door control box are the channel feedback signal output from the first No. 1 detonation and door control box and the detonation delay signal output from the timer of the left ejection seat; the output is a detonation ejection feedback signal to the left ejection seat. The inputs of the second No. 2 detonation and door control box are the channel feedback signal output from the second No. 1 detonation and door control box and the detonation delay signal output from the timer of the right ejection seat; the output is a detonation ejection feedback signal to the right ejection seat.

[0013] In at least one embodiment of this application, after receiving the catapult launch detonation signal, the timer outputs a detonation delay signal after a fixed delay time Ts.

[0014] In at least one embodiment of this application, the delay device is mounted on the lower beam of the ejection tube of the corresponding ejection seat.

[0015] In at least one embodiment of this application, the channel actuation device has a built-in pyrotechnic device.

[0016] In at least one embodiment of this application, the single / dual-state selector has a single-state mode and a dual-state mode, wherein,

[0017] When the rear ejection seat is powered on, a power-on signal is output to the single / dual-state selector;

[0018] If the single / dual-state selector acquires the power-on signal of the rear ejection seat, the single / dual-state selector automatically sets to dual-state mode;

[0019] If the single / dual-state selector does not detect the power-on signal of the rear ejection seat, the single / dual-state selector will automatically be set to single-state mode.

[0020] In at least one embodiment of this application, the single / dual-state selector is installed inside the aircraft cockpit, located under the floor of the rear ejection seat.

[0021] In at least one embodiment of this application, when any one of the input terminals of the three-input two-output splitter receives a catapult-initiated detonation signal, both output terminals of the three-input two-output splitter output a catapult-initiated detonation signal.

[0022] In at least one embodiment of this application, the three-in-two-out splitter is installed on the top of the aircraft cockpit, located between the left cockpit canopy and the right cockpit canopy.

[0023] In at least one embodiment of this application, the ejection start electronic signal, the channel clearing completion electronic signal, and the cutting and throwing electronic signal are transmitted via wires.

[0024] In at least one embodiment of this application, the ejection initiation detonation signal, the channel clearing completion detonation signal, and the cutting and throwing detonation signal are transmitted via detonating cord.

[0025] A second aspect of this application provides a closed-loop interlocked ejection channel cleaning control method, based on the closed-loop interlocked ejection channel cleaning control system described above, comprising:

[0026] Single / dual state selectors in dual state mode:

[0027] When the left ejection seat initiates the ejection procedure first, the program controller outputs three ejection start electronic signals, and the detonation generator outputs two ejection start detonation signals. The three ejection start electronic signals are respectively output to the left cockpit canopy, the left passageway actuator, and the single / dual-state selector. One ejection start detonation signal is delayed by a timer and then outputs a detonation delay signal to the first detonation and door control box. The other ejection start detonation signal is output to the three-input two-output splitter.

[0028] After receiving the ejection start electronic signal, the left cockpit canopy triggers the detonation tube, which ignites and the left cockpit canopy is cut and ejected. At the same time, the cut and ejection electronic signal is output to the left ejection seat and the cut and ejection detonation signal is output to the first detonation and door control box.

[0029] After receiving the ejection start electronic signal, the left channel actuator detonates the detonator, which ignites, and the left channel actuator actuates to clear the left ejection channel. At the same time, it outputs an electronic signal indicating that the channel clearing is complete to the left ejection seat and an output detonation signal indicating that the channel clearing is complete to the first detonation and door control box. After receiving the ejection start electronic signal, the single / dual state selector transmits the ejection start electronic signal to the right ejection seat and the rear ejection seat respectively. The detonation generator outputs the ejection start detonation signal to the three-input two-output splitter.

[0030] After receiving the ejection initiation detonation signal, the three-input two-output splitter transmits the ejection initiation detonation signal to the left channel actuator and the right channel actuator respectively. If the electric detonation tube of the left channel actuator fails to fire, the detonation initiation device fires, the left channel actuator operates, and the left ejection channel is cleared. If the electric detonation tube of the right channel actuator fails to fire, the detonation initiation device fires, the right channel actuator operates, and the right ejection channel is cleared.

[0031] After receiving the cutting and throwing detonation signal and the channel clearing completion detonation signal, the No. 1 detonation and door control box outputs the channel feedback signal to the No. 2 detonation and door control box. After receiving the detonation delay signal and the channel feedback signal, the No. 2 detonation and door control box outputs the detonation ejection feedback signal to the left ejection seat, fires the ejection tube, and ejects the left ejection seat out of the cabin.

[0032] After receiving the electronic signals for cutting and throwing and the completion of passage clearing, the left ejection seat fires the ejection tube, and the left ejection seat ejects from the cockpit. After receiving the ejection start electronic signal transmitted by the single / dual-state selector, the right ejection seat initiates the ejection program. The program controller outputs three ejection start electronic signals, and the detonation generator outputs two ejection start detonation signals. The three ejection start electronic signals are respectively output to the right cockpit canopy, the right passage actuation device, and the single / dual-state selector. One ejection start detonation signal is delayed by a timer and then outputs a detonation delay signal to the second detonation and door control box. The other ejection start detonation signal is output to the three-input two-output splitter.

[0033] After receiving the ejection start electronic signal, the right cockpit canopy triggers the detonation tube, which then ignites. The right cockpit canopy is then cut and ejected, and simultaneously, the cut and ejection electronic signal is sent to the right ejection seat, as well as the cut and ejection detonation signal is sent to the No. 21 detonation and door control box.

[0034] After receiving the ejection start electronic signal, the right channel actuator triggers the detonation tube. The detonation tube ignites, the right channel actuator actuates, clears the right ejection channel, and simultaneously outputs a channel clearing completion electronic signal to the right ejection seat and an output channel clearing completion detonation signal to the second detonation and door control box.

[0035] After receiving the cutting and throwing detonation signal and the channel clearing completion detonation signal, the No. 21 detonation and door control box outputs the channel feedback signal to the No. 22 detonation and door control box. After receiving the detonation delay signal and the channel feedback signal, the No. 22 detonation and door control box outputs the detonation ejection feedback signal to the right ejection seat, fires the ejection tube, and ejects the right ejection seat out of the cabin.

[0036] After the right ejection seat receives the electronic signals for cutting and throwing and the completion of passage clearing, it fires the ejection tube and ejects the right ejection seat out of the cabin.

[0037] After receiving the ejection start electronic signal transmitted by the single / dual state selector, the rear ejection seat starts the ejection program. The program controller outputs two ejection start electronic signals, which are then output to the rear canopy and the single / dual state selector, respectively.

[0038] After receiving the ejection activation electronic signal, the rear canopy fires the detonation tube, which ignites and the right canopy is cut and ejected. At the same time, it outputs the cutting and ejection electronic signal and the cutting and ejection detonation signal to the rear ejection seat, which fires the ejection tube and ejects the rear ejection seat out of the cabin.

[0039] When the right ejection seat initiates the ejection procedure first, refer to the workflow when the left ejection seat initiates the ejection procedure first.

[0040] When the rear ejection seat initiates the ejection procedure first, the program controller outputs two ejection start electronic signals, which are then output to the rear canopy and the single / dual-state selector, respectively.

[0041] After receiving the ejection activation electronic signal, the rear canopy fires the detonation tube, which ignites and the right canopy is cut and ejected. At the same time, it outputs the cutting and ejection electronic signal and the cutting and ejection detonation signal to the rear ejection seat, which fires the ejection tube and ejects the rear ejection seat out of the cabin.

[0042] After receiving the ejection start electronic signal, the single / dual state selector transmits the ejection start electronic signal to the left ejection seat and the right ejection seat respectively. The detonation generator outputs the ejection start detonation signal to the three-input two-output splitter.

[0043] In at least one embodiment of this application, the single / dual-state selector is in single-state mode:

[0044] When the left ejection seat and the left ejection seat initiate the ejection procedure first, the single / dual state selector has no output to the rear ejection seat, and the rear ejection seat does not eject.

[0045] In at least one embodiment of this application, the ejection order of the ejection seats is that the rear ejection seat ejects first.

[0046] The invention has at least the following beneficial technical effects:

[0047] The closed-loop interlocked ejection channel clearing control system of this application can be used in aircraft ejection rescue systems. It has dual redundancy control of electronic signals and detonation signals, and can ensure that there are no obstacles in the ejection channel before ejection. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of a closed-loop interlocked ejection channel cleaning control system according to one embodiment of this application. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0051] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0052] The first aspect of this application provides a closed-loop interlocked ejection channel clearing control system, including: an ejection seat, a channel actuation device, a cockpit canopy, a single / dual-state selector, a three-in / two-out splitter, and a detonation and door control box.

[0053] Specifically, such as Figure 1 As shown, there are three ejection seats in a three-seat aircraft: a left ejection seat, a right ejection seat, and a rear ejection seat. The left and right ejection seats are equipped with a program controller and a detonation generator, while the rear ejection seat contains the program controller. The program controller outputs the ejection initiation electronic signal, and the detonation generator outputs the ejection initiation detonation signal. One ejection initiation detonation signal from the detonation generator in the left and right ejection seats is delayed by a timer to output a detonation delay signal. The program controller can also collect status information from the single / dual-state selector, the canopy's cutting and throwing electronic signal, and the passageway actuation device's passageway clearing completion electronic signal. Upon receiving the cutting and throwing electronic signal, the passageway clearing completion electronic signal, or the detonation ejection feedback signal, the ejection seat's program controller outputs a seat ignition signal, firing the ejection tube and ejecting the passenger seat.

[0054] Two ejection channel actuation devices are installed inside the machine. Each device contains pyrotechnics for clearing the ejection channel. The actuation devices include a left and a right actuation device. Both devices are equipped with an electric detonator, a detonation initiator, and a detonation generator. The electric detonator on the left actuation device receives the ejection start electronic signal from the program controller of the left ejection seat and outputs an ejection channel clearing completion electronic signal to the left ejection seat. The detonation generator on the left actuation device also outputs a detonation signal indicating that the ejection channel has been cleared. Similarly, the electric detonator on the right actuation device receives the ejection start electronic signal from the program controller of the right ejection seat and outputs an ejection channel clearing completion electronic signal to the right ejection seat. The detonation generator on the right actuation device also outputs a detonation signal indicating that the ejection channel has been cleared. After receiving the ejection start electronic signal and the ejection start detonation signal, the actuation device removes obstacles from the ejection channel. Upon completion of its work, it outputs a detonation signal indicating that the ejection channel has been cleared and an electronic signal indicating that the ejection channel has been cleared.

[0055] The cockpit canopy includes a left canopy, a right canopy, and a rear canopy. Each of these canopies is equipped with an electric detonator and a detonation generator. The electric detonator on the left canopy receives the ejection activation signal from the program controller of the left ejection seat and outputs a cutting and ejection signal to the left ejection seat. The detonation generator on the left canopy also outputs a cutting and ejection detonation signal. Similarly, the electric detonator on the right canopy receives the ejection activation signal from the program controller of the right ejection seat and outputs a cutting and ejection signal to the right ejection seat. The detonation generator on the right canopy also outputs a cutting and ejection detonation signal. Likewise, the electric detonator on the rear canopy receives the ejection activation signal from the program controller of the rear ejection seat and outputs a cutting and ejection signal to the rear ejection seat. The detonation generator on the rear canopy also outputs a cutting and ejection detonation signal to the rear ejection seat.

[0056] The single / dual-state selector is equipped with a detonation generator. The single / dual-state selector can interact with the program controller of each ejection seat to exchange ejection start electronic signals. The detonation generator is used to output the ejection start detonation signal.

[0057] The three-input two-output splitter has three input terminals and two output terminals. The three input terminals can receive the ejection start detonation signals output by the detonation generators of the left ejection seat, the right ejection seat, and the single / dual-state selector, respectively. The two output terminals can send ejection start detonation signals to the detonation initiators of the left channel actuator and the right channel actuator, respectively.

[0058] The detonation and door control box includes two No. 1 detonation and door control boxes and two No. 2 detonation and door control boxes. The inputs of the first No. 1 detonation and door control box are the cutting and throwing detonation signal output from the left cockpit canopy and the channel clearing completion detonation signal output from the left channel actuator, and the output is a channel feedback signal. The inputs of the second No. 1 detonation and door control box are the cutting and throwing detonation signal output from the right cockpit canopy and the channel clearing completion detonation signal output from the right channel actuator, and the output is a channel feedback signal. The inputs of the first No. 2 detonation and door control box are the channel feedback signal output from the first No. 1 detonation and door control box and the detonation delay signal output from the timer of the left ejection seat, and the output is a detonation ejection feedback signal to the left ejection seat. The inputs of the second No. 2 detonation and door control box are the channel feedback signal output from the second No. 1 detonation and door control box and the detonation delay signal output from the timer of the right ejection seat, and the output is a detonation ejection feedback signal to the right ejection seat.

[0059] In a preferred embodiment of this application, after receiving the ejection initiation detonation signal, the timer outputs a detonation delay signal after a fixed delay time Ts. The timer is installed on the lower beam of the ejection tube of the corresponding ejection seat. The function of the timer is to ensure that the ejection channel has been cleared when the ejection seat is ejected.

[0060] In a preferred embodiment of this application, the single-state selector has a single-state mode and a dual-state mode, wherein,

[0061] When the rear ejection seat is powered on, it outputs a power-on signal to the single / dual-state selector.

[0062] If the single / dual-state selector detects the power-on signal of the rear ejection seat, the single / dual-state selector will automatically be set to dual-state mode.

[0063] If the single / dual-state selector does not detect the power-on signal of the rear ejection seat, the single / dual-state selector will automatically switch to single-state mode.

[0064] The preferred single / dual state selector is installed inside the aircraft cockpit, under the floor of the rear ejection seat.

[0065] In a preferred embodiment of this application, the three-input, two-output splitter is a dedicated detonation transmission component, having three input terminals and two output terminals. When any one of the three input terminals receives an ejection-initiated detonation signal, both output terminals can output an ejection-initiated detonation signal. Preferably, the three-input, two-output splitter is installed on the top of the aircraft cockpit, located between the left and right cockpit canopies.

[0066] In a preferred embodiment of this application, the electronic signals for launching, clearing the channel, and cutting and throwing are transmitted via wires, while the detonating cord transmits the detonation signals for launching, clearing the channel, and cutting and throwing.

[0067] The closed-loop interlocked ejection ramp clearing control system of this application has five sets of electric detonators. Upon receiving the ejection initiation electronic signal, the electric detonators are detonated, providing ignition power to the canopy and ramp actuators, enabling the canopy to be cut and thrown, and clearing the ejection ramp. There are two sets of detonation initiation devices. Upon receiving the ejection initiation detonation signal, the detonation initiation devices are detonated, and the pyrotechnics built into the ramp actuators are activated by the detonation initiation devices, clearing the ejection ramp. The electric detonators and detonation initiation devices installed at the ramp actuators provide dual-redundant ignition control for the ramp actuators.

[0068] Based on the aforementioned closed-loop interlocked ejection channel clearing control system, a second aspect of this application provides a closed-loop interlocked ejection channel clearing control method, comprising:

[0069] Single / dual state selectors in dual state mode:

[0070] When the left ejection seat initiates the ejection procedure first, the program controller outputs three ejection start electronic signals, and the detonation generator outputs two ejection start detonation signals. The three ejection start electronic signals are respectively output to the left cockpit canopy, the left passageway actuator, and the single / dual-state selector. One ejection start detonation signal is delayed by a timer and then outputs a detonation delay signal to the first detonation and door control box. The other ejection start detonation signal is output to the three-input two-output splitter.

[0071] After receiving the ejection start electronic signal, the left cockpit canopy triggers the detonation tube, which ignites and the left cockpit canopy is cut and ejected. At the same time, the cut and ejection electronic signal is output to the left ejection seat and the cut and ejection detonation signal is output to the first detonation and door control box.

[0072] After receiving the ejection start electronic signal, the left channel actuator strikes the electric detonation tube. The electric detonation tube ignites, the left channel actuator actuates, clears the left ejection channel, and at the same time outputs an electronic signal indicating that the channel clearing is complete to the left ejection seat and an output signal indicating that the channel clearing is complete to the first detonation and door control box.

[0073] After receiving the ejection start electronic signal, the single / dual state selector transmits the ejection start electronic signal to the right ejection seat and the rear ejection seat respectively. The detonation generator outputs the ejection start detonation signal to the three-input two-output splitter.

[0074] After receiving the ejection initiation detonation signal, the three-input two-output splitter transmits the ejection initiation detonation signal to the left channel actuator and the right channel actuator respectively. If the electric detonator of the left channel actuator fails to fire, the detonation initiation device fires, and the left channel actuator operates to clear the left ejection channel. If the electric detonator of the right channel actuator fails to fire, the detonation initiation device fires, and the right channel actuator operates to clear the right ejection channel. This achieves dual-redundancy control of electronic signal and detonation signal.

[0075] After receiving the cutting and throwing detonation signal and the channel clearing completion detonation signal, the No. 1 detonation and door control box outputs the channel feedback signal to the No. 2 detonation and door control box. After receiving the detonation delay signal and the channel feedback signal, the No. 2 detonation and door control box outputs the detonation ejection feedback signal to the left ejection seat, fires the ejection tube, and ejects the left ejection seat out of the cabin.

[0076] After receiving the electronic signals for cutting and throwing and for the passage to be cleared, the left ejection seat fires the ejection tube, and the left ejection seat ejects from the cabin.

[0077] After receiving the ejection start electronic signal transmitted by the single / dual-state selector, the right ejection seat initiates the ejection program. The program controller outputs three ejection start electronic signals, and the detonation generator outputs two ejection start detonation signals. The three ejection start electronic signals are respectively output to the right cockpit canopy, the right passageway actuator, and the single / dual-state selector. One ejection start detonation signal is delayed by a timer and then outputs a detonation delay signal to the second detonation and door control box. The other ejection start detonation signal is output to the three-input two-output splitter.

[0078] After receiving the ejection start electronic signal, the right cockpit canopy triggers the detonation tube, which then ignites. The right cockpit canopy is then cut and ejected, and simultaneously, the cut and ejection electronic signal is sent to the right ejection seat, as well as the cut and ejection detonation signal is sent to the No. 21 detonation and door control box.

[0079] After receiving the ejection start electronic signal, the right channel actuator triggers the detonation tube. The detonation tube ignites, the right channel actuator actuates, clears the right ejection channel, and simultaneously outputs a channel clearing completion electronic signal to the right ejection seat and an output channel clearing completion detonation signal to the second detonation and door control box.

[0080] After receiving the cutting and throwing detonation signal and the channel clearing completion detonation signal, the No. 21 detonation and door control box outputs the channel feedback signal to the No. 22 detonation and door control box. After receiving the detonation delay signal and the channel feedback signal, the No. 22 detonation and door control box outputs the detonation ejection feedback signal to the right ejection seat, fires the ejection tube, and ejects the right ejection seat out of the cabin.

[0081] After the right ejection seat receives the electronic signals for cutting and throwing and the completion of passage clearing, it fires the ejection tube and ejects the right ejection seat out of the cabin.

[0082] After receiving the ejection start electronic signal transmitted by the single / dual state selector, the rear ejection seat starts the ejection program. The program controller outputs two ejection start electronic signals, which are then output to the rear canopy and the single / dual state selector, respectively.

[0083] After receiving the ejection activation electronic signal, the rear canopy fires the detonation tube, which ignites and the right canopy is cut and ejected. At the same time, it outputs the cutting and ejection electronic signal and the cutting and ejection detonation signal to the rear ejection seat, which fires the ejection tube and ejects the rear ejection seat out of the cabin.

[0084] When the right ejection seat initiates the ejection procedure first, refer to the workflow when the left ejection seat initiates the ejection procedure first.

[0085] When the rear ejection seat initiates the ejection procedure first, the program controller outputs two ejection start electronic signals, which are then output to the rear canopy and the single / dual-state selector, respectively.

[0086] After receiving the ejection activation electronic signal, the rear canopy triggers the detonation tube, which ignites, the right canopy is cut and ejected, the ejection tube is fired, and the rear ejection seat ejects the passenger from the cockpit.

[0087] After receiving the ejection start electronic signal, the single / dual-state selector transmits the ejection start electronic signal to the left and right ejection seats respectively. The detonation generator outputs the ejection start detonation signal to the three-input two-output splitter. After receiving the ejection start electronic signal from the single / dual-state selector, the left and right ejection seats initiate the ejection procedure. The subsequent workflow is described above.

[0088] If the rear ejection seat is not powered, it indicates that the rear ejection seat is unoccupied. The single / dual-state selector automatically sets to single-state mode. In single-state mode:

[0089] When the left ejection seat initiates its ejection procedure first, the single / dual-state selector has no output to the rear ejection seat, and the rear ejection seat does not eject. The remaining workflow is the same as in dual-state mode and will not be described further.

[0090] The closed-loop interlocked ejection channel clearing control method of this application allows the ejection time of all three ejection seats to be controlled by a programmable controller. The ejection times of the left and right ejection seats are also controlled by time delay units. The ejection time interval of the three ejection seats is controlled by the programmable controller inside each ejection seat, and the ejection order of the three ejection seats is that the last ejection seat ejects first.

[0091] The closed-loop interlocked ejection channel cleaning control system and method of this application can be used for three-seat aircraft, and can also be modified for two-seat and single-seat aircraft.

[0092] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A closed-loop interlocking ejection channel cleaning control system, characterized in that, include: The ejection seat includes a left ejection seat, a right ejection seat, and a rear ejection seat. The left ejection seat and the right ejection seat are each equipped with a program controller and a detonation generator. The rear ejection seat is equipped with a program controller. The program controller is used to output an ejection start electronic signal. The detonation generator is used to output an ejection start detonation signal. The ejection start detonation signal output by the detonation generator in the left ejection seat and the right ejection seat is passed through a timer to output a detonation delay signal. The channel actuation device includes a left channel actuation device and a right channel actuation device. Both the left and right channel actuation devices are equipped with an electric detonator, a detonation initiator, and a detonation generator. The electric detonator on the left channel actuation device can receive the ejection initiation electronic signal output from the left ejection seat and output a channel clearing completion electronic signal to the left ejection seat. The detonation generator on the left channel actuation device is also used to output a channel clearing completion detonation signal. Similarly, the electric detonator on the right channel actuation device can receive the ejection initiation electronic signal output from the right ejection seat and output a channel clearing completion electronic signal to the right ejection seat. The detonation generator on the right channel actuation device is also used to output a channel clearing completion detonation signal. The cockpit canopy includes a left cockpit canopy, a right cockpit canopy, and a rear cockpit canopy. Each of the left, right, and rear cockpit canopies is equipped with an electric detonator and a detonation generator. The electric detonator on the left cockpit canopy receives the ejection activation electronic signal from the left ejection seat and outputs a cutting and throwing electronic signal to the left ejection seat. The detonation generator on the left cockpit canopy also outputs a cutting and throwing detonation signal. Similarly, the electric detonator on the right cockpit canopy receives the ejection activation electronic signal from the right ejection seat and outputs a cutting and throwing electronic signal to the right ejection seat. The detonation generator on the right cockpit canopy also outputs a cutting and throwing detonation signal. Likewise, the electric detonator on the rear cockpit canopy receives the ejection activation electronic signal from the rear ejection seat and outputs a cutting and throwing electronic signal to the rear ejection seat. The detonation generator on the rear cockpit canopy also outputs a cutting and throwing detonation signal to the rear ejection seat. A single / dual-state selector is provided with a detonation generator. The single / dual-state selector can interact with the program controller of each ejection seat to exchange ejection start electronic signals. The detonation generator is used to output ejection start detonation signals. The three-input two-output splitter has three input terminals and two output terminals. The three input terminals can respectively receive the ejection start detonation signals output by the detonation generators of the left ejection seat, the right ejection seat, and the single / dual-state selector. The two output terminals can respectively send ejection start detonation signals to the detonation initiators of the left channel actuator and the right channel actuator. The detonation and door control box includes two No. 1 detonation and door control boxes and two No. 2 detonation and door control boxes. The inputs of the first No. 1 detonation and door control box are the cutting and throwing detonation signal output from the left cockpit canopy and the channel clearing completion detonation signal output from the left channel actuator; the output is a channel feedback signal. The inputs of the second No. 1 detonation and door control box are the cutting and throwing detonation signal output from the right cockpit canopy and the channel clearing completion detonation signal output from the right channel actuator; the output is a channel feedback signal. The inputs of the first No. 2 detonation and door control box are the channel feedback signal output from the first No. 1 detonation and door control box and the detonation delay signal output from the timer of the left ejection seat; the output is a detonation ejection feedback signal to the left ejection seat. The inputs of the second No. 2 detonation and door control box are the channel feedback signal output from the second No. 1 detonation and door control box and the detonation delay signal output from the timer of the right ejection seat; the output is a detonation ejection feedback signal to the right ejection seat.

2. The closed-loop interlocked ejection channel cleaning control system according to claim 1, characterized in that, After receiving the catapult launch detonation signal, the timer outputs a detonation delay signal after a fixed delay time Ts.

3. The closed-loop interlocked ejection channel cleaning control system according to claim 2, characterized in that, The delay device is installed on the lower beam of the ejection tube corresponding to the ejection seat.

4. The closed-loop interlocked ejection channel cleaning control system according to claim 3, characterized in that, The channel actuation device contains pyrotechnic components.

5. The closed-loop interlocked ejection channel cleaning control system according to claim 4, characterized in that, The single / dual-state selector has a single-state mode and a dual-state mode, wherein, When the rear ejection seat is powered on, a power-on signal is output to the single / dual-state selector; If the single / dual-state selector detects the power-on signal of the rear ejection seat, the single / dual-state selector automatically switches to dual-state mode. If the single / dual-state selector does not detect the power-on signal of the rear ejection seat, the single / dual-state selector will automatically be set to single-state mode.

6. The closed-loop interlocked ejection channel cleaning control system according to claim 5, characterized in that, The single / dual state selector is installed inside the aircraft cockpit, located under the floor of the rear ejection seat.

7. The closed-loop interlocked ejection channel cleaning control system according to claim 6, characterized in that, When any one of the three-input two-output splitter input terminals receives a catapult-initiated detonation signal, both output terminals of the three-input two-output splitter output a catapult-initiated detonation signal.

8. The closed-loop interlocked ejection channel cleaning control system according to claim 7, characterized in that, The three-in-two-out splitter is installed on the top of the aircraft cockpit, located between the left and right cockpit canopies.

9. The closed-loop interlocked ejection channel cleaning control system according to claim 8, characterized in that, The ejection start electronic signal, the channel clearing completion electronic signal, and the cutting and throwing electronic signal are transmitted via wires.

10. The closed-loop interlocked ejection channel cleaning control system according to claim 9, characterized in that, The ejection initiation detonation signal, the channel clearing completion detonation signal, and the cutting and throwing detonation signal are transmitted through detonating cords.

11. A closed-loop interlocked ejection channel cleaning control method, based on the closed-loop interlocked ejection channel cleaning control system according to any one of claims 1 to 10, characterized in that, include: Single / dual state selectors in dual state mode: When the left ejection seat initiates the ejection procedure first, the program controller outputs three ejection start electronic signals, and the detonation generator outputs two ejection start detonation signals; the three ejection start electronic signals are respectively output to the left cockpit canopy, the left passageway actuator, and the single / dual state selector. One ejection start detonation signal is delayed by a timer and then output as a detonation delay signal to the first and second detonation gate control box; the other ejection start detonation signal is output to a three-input two-output splitter. After receiving the ejection start electronic signal, the left cockpit canopy triggers the detonation tube, which ignites and the left cockpit canopy is cut and ejected. At the same time, the cut and ejection electronic signal is output to the left ejection seat and the cut and ejection detonation signal is output to the first detonation and door control box. After receiving the ejection start electronic signal, the left channel actuator detonates the detonator, which ignites, and the left channel actuator actuates to clear the left ejection channel. At the same time, it outputs an electronic signal indicating that the channel clearing is complete to the left ejection seat and an output detonation signal indicating that the channel clearing is complete to the first detonation and door control box. After receiving the ejection start electronic signal, the single / dual state selector transmits the ejection start electronic signal to the right ejection seat and the rear ejection seat respectively. The detonation generator outputs the ejection start detonation signal to the three-input two-output splitter. After receiving the ejection initiation detonation signal, the three-input two-output splitter transmits the ejection initiation detonation signal to the left channel actuator and the right channel actuator respectively. If the electric detonation tube of the left channel actuator fails to fire, the detonation initiation device fires, the left channel actuator operates, and the left ejection channel is cleared. If the electric detonation tube of the right channel actuator fails to fire, the detonation initiation device fires, the right channel actuator operates, and the right ejection channel is cleared. After receiving the cutting and throwing detonation signal and the channel clearing completion detonation signal, the No. 1 detonation and door control box outputs the channel feedback signal to the No. 2 detonation and door control box. After receiving the detonation delay signal and the channel feedback signal, the No. 2 detonation and door control box outputs the detonation ejection feedback signal to the left ejection seat, fires the ejection tube, and ejects the left ejection seat out of the cabin. After receiving the electronic signals for cutting and throwing and for the passage to be cleared, the left ejection seat fires the ejection tube, and the left ejection seat ejects from the cabin. After receiving the ejection start electronic signal transmitted by the single / dual-state selector, the right ejection seat initiates the ejection program. The program controller outputs three ejection start electronic signals, and the detonation generator outputs two ejection start detonation signals. The three ejection start electronic signals are respectively output to the right cockpit canopy, the right passageway actuator, and the single / dual-state selector. One ejection start detonation signal is delayed by a timer and then outputs a detonation delay signal to the second detonation and door control box. The other ejection start detonation signal is output to the three-input two-output splitter. After receiving the ejection start electronic signal, the right cockpit canopy triggers the detonation tube, which then ignites. The right cockpit canopy is then cut and ejected, and simultaneously, the cut and ejection electronic signal is sent to the right ejection seat, as well as the cut and ejection detonation signal is sent to the No. 21 detonation and door control box. After receiving the ejection start electronic signal, the right channel actuator triggers the detonation tube. The detonation tube ignites, the right channel actuator actuates, clears the right ejection channel, and simultaneously outputs a channel clearing completion electronic signal to the right ejection seat and an output channel clearing completion detonation signal to the second detonation and door control box. After receiving the cutting and throwing detonation signal and the channel clearing completion detonation signal, the No. 21 detonation and door control box outputs the channel feedback signal to the No. 22 detonation and door control box. After receiving the detonation delay signal and the channel feedback signal, the No. 22 detonation and door control box outputs the detonation ejection feedback signal to the right ejection seat, fires the ejection tube, and ejects the right ejection seat out of the cabin. After the right ejection seat receives the electronic signals for cutting and throwing and the completion of passage clearing, it fires the ejection tube and ejects the right ejection seat out of the cabin. After receiving the ejection start electronic signal transmitted by the single / dual state selector, the rear ejection seat starts the ejection program. The program controller outputs two ejection start electronic signals, which are then output to the rear canopy and the single / dual state selector, respectively. After receiving the ejection activation electronic signal, the rear canopy fires the detonation tube, which ignites and the right canopy is cut and ejected. At the same time, it outputs the cutting and ejection electronic signal and the cutting and ejection detonation signal to the rear ejection seat, which fires the ejection tube and ejects the rear ejection seat out of the cabin. When the right ejection seat initiates the ejection procedure first, refer to the workflow when the left ejection seat initiates the ejection procedure first. When the rear ejection seat initiates the ejection procedure first, the program controller outputs two ejection start electronic signals, which are then output to the rear canopy and the single / dual-state selector, respectively. After receiving the ejection activation electronic signal, the rear canopy fires the detonation tube, which ignites and the right canopy is cut and ejected. At the same time, it outputs the cutting and ejection electronic signal and the cutting and ejection detonation signal to the rear ejection seat, which fires the ejection tube and ejects the rear ejection seat out of the cabin. After receiving the ejection start electronic signal, the single / dual state selector transmits the ejection start electronic signal to the left ejection seat and the right ejection seat respectively. The detonation generator outputs the ejection start detonation signal to the three-input two-output splitter.

12. The closed-loop interlocked ejection channel cleaning control method according to claim 11, characterized in that, Single / dual state selectors in single state mode: When the left ejection seat and the left ejection seat initiate the ejection procedure first, the single / dual state selector has no output to the rear ejection seat, and the rear ejection seat does not eject.

13. The closed-loop interlocked ejection channel cleaning control method according to claim 12, characterized in that, The ejection order of the ejection seats is that the rear ejection seat ejects first.

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