Method, system, and storage medium for controlling vertical speed of an aircraft
By determining the available range of the aircraft's vertical speed and displaying an indication on the monitor, receiving the target value selected by the pilot, and controlling the aircraft's vertical speed to avoid triggering speed protection, the problem of control interruption during rapid climb or descent is solved, improving flight safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- COMMERCIAL AIRCRAFT CORP OF CHINA LTD
- Filing Date
- 2024-06-07
- Publication Date
- 2026-07-07
AI Technical Summary
Existing technology lacks a clear indication of the available vertical speed range when an aircraft is rapidly climbing or descending. This can cause the automatic activation of the speed protection function to interrupt the original automatic flight mode, requiring the pilot to reset the control target. Furthermore, there is a lack of warning of triggering trends.
An aircraft vertical speed control method and system are provided, which determines the available range of vertical speed and displays an indication on a display, receives a target value selected by the pilot, controls the aircraft's vertical speed to avoid triggering speed protection, including flashing an inappropriate target value prompt on the display.
It assists pilots in selecting appropriate vertical speed target values, preventing the speed protection function from automatically activating and interrupting, thereby improving flight safety and operational efficiency.
Smart Images
Figure CN118778666B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an automatic flight control system for aircraft, specifically to a technique for controlling the vertical speed of an aircraft, and more particularly to a method, system, and storage medium for controlling the vertical speed of an aircraft. Background Technology
[0002] In flight scenarios requiring rapid climb or descent, pilots often select higher vertical speeds. Due to the coupling between vertical speed and pitch attitude, excessively high vertical speeds can cause the aircraft's airspeed to approach the edge of its speed envelope, potentially triggering the speed envelope protection function automatically. To quickly return the aircraft to its speed envelope, this automatic activation may interrupt the existing automatic flight mode. After speed protection deactivates, the pilot needs to reactivate the original mode and set the control target.
[0003] Current technologies primarily provide aircraft status indications to pilots after protection has been triggered, lacking early warning indications of a tendency for the aircraft to trigger speed protection. When pilots select a vertical speed target, the aircraft lacks clear indication of the available vertical speed range; furthermore, automatic activation of pitch speed protection may interrupt the original flight mode, requiring pilots to reactivate the original mode and set control targets after speed protection deactivates.
[0004] Therefore, there is a need for an aircraft vertical speed control technology that provides an indication of the available range. Summary of the Invention
[0005] To address the aforementioned technical problems, this invention provides an aircraft vertical speed control scheme that provides an indication of the available range.
[0006] According to one aspect of the present invention, an aircraft vertical speed control method is provided, the method comprising: determining an available vertical speed range for the aircraft; displaying an indication of the available vertical speed range on a display; receiving a target vertical speed value selected by the pilot; and controlling the vertical speed of the aircraft based on the available vertical speed range and the target vertical speed value to avoid triggering speed protection.
[0007] When a pilot selects a target vertical speed value, the display shows the available range of vertical speeds based on the flight status, indicating the aircraft's climb or descent capabilities in the current flight condition, thus assisting the pilot in selecting an appropriate target value.
[0008] According to one embodiment of the present invention, when the vertical speed target value selected by the pilot is outside the available vertical speed range, the vertical speed target value cursor displayed on the display flashes to indicate to the pilot that flying with this target value may trigger speed protection.
[0009] According to another embodiment of the present invention, when the selected vertical speed target value is greater than the vertical speed upper limit value, the vertical speed upper limit value is used to control the vertical speed of the aircraft; when the selected vertical speed target value is less than the vertical speed lower limit value, the vertical speed lower limit value is used to control the vertical speed of the aircraft; and when the selected vertical speed target value is within the vertical speed available range, the selected vertical speed target value is used to control the vertical speed of the aircraft, thereby avoiding triggering speed protection.
[0010] According to another aspect of the present invention, an aircraft vertical speed control system is provided, the system comprising: a determination module for determining an available vertical speed range for the aircraft; a display module for displaying an indication of the available vertical speed range; an input module for receiving a target vertical speed value selected by the pilot; and a flight control module for controlling the vertical speed of the aircraft based on the available vertical speed range and the selected target vertical speed value to avoid triggering speed protection.
[0011] According to one embodiment of the present invention, when the selected vertical speed target value is outside the available range of vertical speed, the vertical speed target value cursor displayed on the display module flashes, while when the selected vertical speed target value is within the available range of vertical speed, the vertical speed target value cursor displayed on the display module does not flash.
[0012] According to another aspect of the invention, a storage medium storing instructions is provided that, when executed by a processor, cause the processor to perform the aircraft vertical speed control method as described above. Attached Figure Description
[0013] Figure 1 This is a flowchart of an aircraft vertical speed control method according to an embodiment of the present invention.
[0014] Figure 2 This is a flowchart of an aircraft vertical speed control method according to an embodiment of the present invention.
[0015] Figure 3 This is a block diagram of an aircraft vertical speed control system according to an embodiment of the present invention. Detailed Implementation
[0016] The present invention will be further described below with reference to specific embodiments and accompanying drawings, but this should not be construed as limiting the scope of protection of the present invention.
[0017] Figure 1 A flowchart of an aircraft vertical speed control method 100 according to an embodiment of the present invention is shown. The aircraft vertical speed control method 100 may include: in step 110, determining the available range of vertical speed for the aircraft.
[0018] For example, determining the available vertical speed range of an aircraft may include: acquiring the aircraft's altitude information, the aircraft signage speed value VFE, the minimum selectable speed value VLS, and the aircraft's maximum operating speed VMO / MMO; and determining the upper limit of the flight speed V based on the altitude information, the aircraft signage speed value VFE, the minimum selectable speed value VLS, and the aircraft's maximum operating speed VMO / MMO. max and the lower limit of flight speed V min ; and based on the upper limit of flight speed V max and the lower limit of flight speed V min To determine the available range of vertical speeds. For example, flight altitude information can be received from aircraft sensors, aircraft signage speed value (VFE) can be received from the flight management system, minimum selectable speed value (VLS) can be received from the main flight control system, and the aircraft's maximum operating speed (VMO / MMO) is a fixed characteristic parameter of the aircraft.
[0019] For example, the upper limit of flight speed V is determined based on flight altitude information, aircraft signage speed value VFE, minimum selectable speed value VLS, and maximum operating speed VMO / MMO of the aircraft. max and the lower limit of flight speed V min This includes: when the flight altitude is above a first altitude (e.g., 24,600 feet), adding the smaller of the aircraft's maximum operating speed (MMO) and the aircraft's displayed speed value (VFE) to a first speed margin ΔV. max As the upper limit of flight speed V max And subtract the second speed margin ΔV from the minimum selectable speed value VLS. min As the lower limit of flight speed V min ; and when the flight altitude is below the first altitude, add the smaller of the aircraft's maximum operating speed VMO and the aircraft's displayed speed value VFE to the first speed margin ΔV. max As the upper limit of flight speed V max And subtract the second speed margin ΔV from the minimum selectable speed value VLS. min As the lower limit of flight speed V min .
[0020] The aircraft vertical speed control method 100 may further include: in step 120, displaying an indication of the available vertical speed range on a display. The display may be, for example, the aircraft's main flight display (PFD) or a separate vertical speed control display. The available vertical speed range may include a vertical speed upper limit value (VS). max and vertical velocity lower limit VS min And it can be displayed in the vertical speed band.
[0021] The aircraft vertical speed control method 100 may further include: in step 130, receiving a target vertical speed value selected by the pilot. For example, the pilot may select the target vertical speed value from a human-machine interface provided by the aircraft.
[0022] For example, when the pilot selects a vertical speed target value, the available range of vertical speed based on the flight status is displayed on the screen to indicate the pilot's climb or descent capabilities in the current flight status, thereby assisting the pilot in selecting an appropriate vertical speed target value.
[0023] The aircraft vertical speed control method 100 may further include: in step 140, controlling the aircraft's vertical speed based on the available vertical speed range and a selected vertical speed target value to avoid triggering speed protection.
[0024] For example, controlling the aircraft's vertical speed based on the available vertical speed range and the selected vertical speed target value includes: when the selected vertical speed target value is greater than the vertical speed upper limit value VS max When using the vertical velocity upper limit value VS max To control the aircraft's vertical speed; when the selected target vertical speed value is less than the lower limit of vertical speed VS min When using the lower limit of vertical velocity VS min To control the aircraft's vertical speed; and when the selected vertical speed target value is within the available vertical speed range [VS] min ,VS max When the aircraft is in a vertical speed range, the selected vertical speed target value is used to control the aircraft's vertical speed.
[0025] For example, the upper limit of vertical velocity VS max and vertical velocity lower limit VS min It can be determined by the following formula:
[0026]
[0027] Where VS is the aircraft's vertical speed, TAS is the aircraft's vacuum speed, V is the aircraft's corrected airspeed, and k1 and k2 are constants.
[0028] Furthermore, the aircraft vertical speed control method 100 may include: when the selected vertical speed target value is outside the available vertical speed range, the vertical speed target value cursor displayed on the display flashes to indicate to the pilot that flying with this target value may trigger speed protection; and when the selected vertical speed target value is within the available vertical speed range, the vertical speed target value cursor displayed on the display does not flash.
[0029] Figure 2A flowchart of an aircraft vertical speed control method 200 according to an embodiment of the present invention is shown. The aircraft vertical speed control method 200 may begin in step 210, calculating the upper limit value V of the flight speed. max With lower limit value V min .
[0030] For example, the aircraft's automatic flight system receives barometric altitude information from sensors, the aircraft signage speed value VFE from the flight management system, and the minimum selectable speed value VLS from the main flight control system. Based on these flight status data and the aircraft's fixed characteristic parameter, the maximum operating speed VMO / MMO, it calculates the upper limit of the selectable flight speed V. max With lower limit value V min .
[0031] Next, in step 220, the automatic flight system calculates the available vertical speed range [VS] based on this speed boundary. min ,VS max (For example, based on the formula shown in Aircraft Vertical Speed Control Method 100), and in step 230, displaying the available vertical speed range [VS] min ,VS max Instructions (e.g., displayed on the aircraft's main flight display (e.g., displayed on the vertical speed band) to inform the pilot of the aircraft's current climb or descent capabilities, thereby assisting the pilot in selecting an appropriate target vertical speed value).
[0032] Subsequently, in step 240, the pilot selects the target vertical speed value VS, for example, via the vertical speed knob on the flight mode control panel. cmd .
[0033] Upon receiving the pilot's selected vertical velocity target value VS cmd Then, in step 250, the automatic flight system determines the target vertical velocity value VS. cmd Located within the available vertical speed range [VS] min ,VS max When the speed is within 50°C, the automatic flight system controls the aircraft's vertical speed to be VS. cmd Display a fixed VS on the vertical speed band. cmd The cursor (does not blink), while when VS cmd VS max At that time, the automatic flight system controls the aircraft's vertical speed to be VS. max The VS is displayed as a flashing indicator on the vertical speed band. cmd Cursor, and when VS cmd <VS min At that time, the automatic flight system controls the aircraft's vertical speed to be VS. min The VS is displayed as a flashing indicator on the vertical speed band.cmd cursor.
[0034] Figure 3 An architectural block diagram of an aircraft vertical speed control system 300 according to an embodiment of the present invention is shown. Figure 3 As shown, the aircraft vertical speed control system 300 may include a determination module 310, a display module 320, an input module 330, and a flight control module 340.
[0035] The determining module 310 can be used to determine the available range of vertical speed for the aircraft. For example, the determining module 310 can acquire the aircraft's flight altitude information, the aircraft sign speed value VFE, the minimum selectable speed value VLS, and the aircraft's maximum operating speed VMO / MMO; and determine the upper limit of flight speed V based on the flight altitude information, the aircraft sign speed value VFE, the minimum selectable speed value VLS, and the aircraft's maximum operating speed VMO / MMO. max and the lower limit of flight speed V min ; and based on the upper limit of flight speed V max and the lower limit of flight speed V min To determine the available range of vertical speed.
[0036] For example, the determining module 310 may: when the flight altitude is above a first altitude (e.g., 24,600 feet), add the smaller of the aircraft's maximum operating speed MMO and the aircraft signage speed value VFE to a first speed margin ΔV. max As the upper limit of flight speed V max And subtract the second speed margin ΔV from the minimum selectable speed value VLS. min As the lower limit of flight speed V min ; and when the flight altitude is below the first altitude, add the smaller of the aircraft's maximum operating speed VMO and the aircraft's displayed speed value VFE to the first speed margin ΔV. max As the upper limit of flight speed V max And subtract the second speed margin ΔV from the minimum selectable speed value VLS. min As the lower limit of flight speed V min .
[0037] Display module 320 can be used to display an indication of the available vertical speed range. The available vertical speed range may include a vertical speed upper limit value VS. max and vertical velocity lower limit VS min And it can be displayed in the vertical speed band.
[0038] The input module 330 can be used to receive the target vertical speed value selected by the pilot. For example, the pilot can select the target vertical speed value from the human-machine interface provided by the aircraft.
[0039] For example, when the pilot selects a vertical speed target value through the input module 330, the available range of vertical speed based on the flight status is displayed on the display module 320 to inform the pilot of the aircraft's climb or descent capabilities in the current flight status, thereby assisting the pilot in selecting an appropriate vertical speed target value.
[0040] The flight control module 340 can be used to control the vertical speed of the aircraft based on the available vertical speed range and the selected vertical speed target value to avoid triggering speed protection.
[0041] For example, the flight control module 340 can: when the selected vertical speed target value is greater than the vertical speed upper limit value VS max When using the vertical velocity upper limit value VS max To control the aircraft's vertical speed; when the selected target vertical speed value is less than the lower limit of vertical speed VS min When using the lower limit of vertical velocity VS min To control the aircraft's vertical speed; and when the selected vertical speed target value is within the available vertical speed range [VS] min ,VS max When the aircraft is in a vertical speed range, the selected vertical speed target value is used to control the aircraft's vertical speed.
[0042] Furthermore, such as Figure 3 As shown, the aircraft vertical speed control system 300 may also include a sensor module for outputting flight altitude information (e.g., barometric altitude information) to the determination module 310.
[0043] The present invention also provides a storage medium storing instructions that, when executed by a processor, cause the processor to perform the above-described aircraft vertical speed control method 100 or 200.
[0044] The various steps and modules of the methods and systems described above can be implemented in hardware, software, or a combination thereof. If implemented in hardware, the various illustrative steps, modules, and circuits described in connection with this disclosure can be implemented or executed using a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic components, hardware components, or any combination thereof. A general-purpose processor can be a processor, microprocessor, controller, microcontroller, or state machine, etc. If implemented in software, the various illustrative steps and modules described in connection with this disclosure can be stored as one or more instructions or codes on a computer-readable medium or transmitted. Software modules implementing the various operations of this disclosure can reside in storage media such as RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disks, removable disks, CD-ROMs, cloud storage, etc. The storage medium can be coupled to a processor so that the processor can read and write information from / to the storage medium and execute corresponding program modules to implement the various steps of this disclosure. Moreover, software-based embodiments can be uploaded, downloaded, or remotely accessed through appropriate communication means. Such appropriate means of communication include, for example, the Internet, the World Wide Web, intranets, software applications, cables (including fiber optic cables), magnetic communication, electromagnetic communication (including RF, microwave and infrared communication), electronic communication, or other such means of communication.
[0045] The numerical values given in the various embodiments are merely examples and are not intended to limit the scope of the invention. Furthermore, as a whole, there are other components or steps not listed in the claims or specification of this invention. Moreover, a single name for a component does not preclude other names for that component.
[0046] It should also be noted that these embodiments may be described as processes depicted as flowcharts, flow diagrams, structure diagrams, or block diagrams. Although a flowchart may describe the operations as a sequential process, many of these operations can be executed in parallel or concurrently. Furthermore, the order of these operations can be rearranged.
[0047] The disclosed methods, apparatuses, and systems should not be limited in any way. Rather, this disclosure covers all novel and non-obvious features and aspects of the various disclosed embodiments (individually and in various combinations and sub-combinations of each other). The disclosed methods, apparatuses, and systems are not limited to any particular aspect or feature or combination thereof, and no disclosed embodiment is required to have any one or more specific advantages or to solve any particular or all technical problems.
[0048] This invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications based on the teachings of this invention without departing from the spirit and scope of the claims. All of these modifications are within the scope of protection of this invention.
Claims
1. A method for controlling the vertical speed of an aircraft, characterized in that, include: Acquire the aircraft's flight altitude information, aircraft sign speed value VFE, minimum selectable speed value VLS, and maximum operating speed VMO / MMO; The upper limit of flight speed is determined based on the flight altitude information, the aircraft sign speed value VFE, the minimum selectable speed value VLS, and the aircraft maximum operating speed VMO / MMO. V max and lower limit of flight speed V min The upper limit value of the flight speed is determined. V max and the lower limit of the flight speed V min include: When the flight altitude is higher than the first altitude, the smaller of the aircraft's maximum operating speed MMO and the aircraft's signage speed value VFE is added to the first speed margin Δ. V max As the upper limit of the flight speed V max And subtract the second speed margin Δ from the minimum selectable speed value VLS. V min As the lower limit value of the flight speed V min ;as well as When the flight altitude is below the first altitude, the smaller of the aircraft's maximum operating speed VMO and the aircraft's signage speed value VFE is added to the first speed margin Δ. V max As the upper limit of the flight speed V max And subtract the second speed margin Δ from the minimum selectable speed value VLS. V min As the lower limit value of the flight speed V min ; Based on the aforementioned upper limit of flight speed V max and the lower limit of the flight speed V min To determine the available range of vertical speed for the aircraft; The display shows an indication of the available range of the vertical speed; Receive the vertical velocity target value selected by the pilot; and The vertical speed of the aircraft is controlled based on the available vertical speed range and the selected vertical speed target value to avoid triggering speed protection.
2. The aircraft vertical speed control method as described in claim 1, characterized in that, The available range of vertical speed includes an upper limit value for vertical speed. VS max and the lower limit of vertical velocity VS min .
3. The aircraft vertical speed control method as described in claim 2, characterized in that, Controlling the vertical speed of the aircraft based on the available vertical speed range and the selected target vertical speed value includes: When the selected vertical speed target value is greater than the vertical speed upper limit value VS max When using the aforementioned upper limit value of vertical velocity. VS max To control the vertical speed of the aircraft; When the selected vertical velocity target value is less than the vertical velocity lower limit value VS min When using the aforementioned lower limit value of vertical velocity. VS min To control the vertical speed of the aircraft; and When the selected vertical velocity target value is within the available vertical velocity range [ VS min , VS max When the aircraft is in a vertical speed range, the selected target vertical speed value is used to control the vertical speed of the aircraft.
4. The aircraft vertical speed control method as described in claim 2, characterized in that, The upper limit of vertical speed VS max and the lower limit of the vertical velocity VS min Determined by the following formula: in VS The vertical speed of the aircraft. TAS For the aircraft's vacuum speed, V To correct the aircraft's airspeed, and k1 and k2 It is a constant.
5. The aircraft vertical speed control method as described in claim 1, characterized in that, Further includes: When the selected vertical speed target value is outside the available range of vertical speed, the vertical speed target value cursor displayed on the display flashes; as well as When the selected vertical speed target value is within the available range of vertical speed, the vertical speed target value cursor displayed on the display does not flicker.
6. An aircraft vertical speed control system, characterized in that, include: A determining module is used to determine the available range of vertical speed for an aircraft, wherein determining the available range of vertical speed for the aircraft includes: Acquire the aircraft's flight altitude information, aircraft sign speed value VFE, minimum selectable speed value VLS, and maximum operating speed VMO / MMO; The upper limit of flight speed is determined based on the flight altitude information, the aircraft sign speed value VFE, the minimum selectable speed value VLS, and the aircraft maximum operating speed VMO / MMO. V max and lower limit of flight speed V min The upper limit value of the flight speed is determined. V max and the lower limit of the flight speed V min include: When the flight altitude is higher than the first altitude, the smaller of the aircraft's maximum operating speed MMO and the aircraft's signage speed value VFE is added to the first speed margin Δ. V max As the upper limit of the flight speed V max And subtract the second speed margin Δ from the minimum selectable speed value VLS. V min As the lower limit value of the flight speed V min ;as well as When the flight altitude is below the first altitude, the smaller of the aircraft's maximum operating speed VMO and the aircraft's signage speed value VFE is added to the first speed margin Δ. V max As the upper limit of the flight speed V max And subtract the second speed margin Δ from the minimum selectable speed value VLS. V min As the lower limit value of the flight speed V min ; Based on the aforementioned upper limit of flight speed V max and the lower limit of the flight speed V min To determine the available range of the vertical velocity; A display module is used to display an indication of the available range of the vertical speed; The input module is used to receive the vertical speed target value selected by the pilot; and The flight control module is used to control the vertical speed of the aircraft based on the available vertical speed range and the selected vertical speed target value, so as to avoid triggering speed protection.
7. The aircraft vertical speed control system as described in claim 6, characterized in that, When the selected vertical speed target value is outside the available vertical speed range, the vertical speed target value cursor displayed on the display module flashes; when the selected vertical speed target value is within the available vertical speed range, the vertical speed target value cursor displayed on the display module does not flash.
8. A storage medium storing instructions, characterized in that, When executed by the processor, the instructions cause the processor to perform the aircraft vertical speed control method as described in any one of claims 1-5.