JPS61211199A - Helicopter weight and torque advising device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Background of the invention]

This invention relates to a helicopter advisory device, more specifically, but not exclusively, for the mission of transporting external loads.
The present invention relates to a device that informs a helicopter crew in real time of engine torque margin (difference between available torque and required torque), gross weight, center of gravity of gross weight, and weight supported by the helicopter's cargo hook. Traditionally, helicopter pilots estimate the required engine torque for the available torque as a function of the actual external cargo load.
They did not have modern automated means of determining torque. Current methods involve human reference to performance lookup tables and charts to determine torque margin for actual external loads, which is time consuming and
It's messy and always fallible. This human device is
This may result in structural damage to the helicopter, inability to accomplish its mission, or an unfortunate accident. Previous attempts to determine the condition of a helicopter after lifting external cargo did not provide real-time input of altitude, temperature, and fuel weight necessary to determine engine torque margin. The helicopter weight and torque advisory system of the present invention eliminates the above-mentioned problems and provides unique features and advantages not previously available during helicopter flight.

[Summary of the invention]

In one aspect of the invention, an aircraft power source is used as a helicopter weight and torque advisory device connected to the helicopter's fuel gauge, ambient temperature and altitude indicators, and hook load sensors and operated by one of the helicopter's occupants. It has a control panel and processing device connected to the hook load sensor, fuel gauge, outside temperature and altitude display device, and the control panel processing device displays the helicopter's engine torque margin,
It has the necessary calculators and memory to store and calculate the total weight, the center of gravity of the total weight when the external loads are lifted by the helicopter, as well as the individual weights supported by the cargo hooks, and is further connected to the processing equipment. The present invention provides a helicopter weight and torque advisory device having a remote display device that displays the fuel weight, outside air temperature, and altitude of the helicopter. In another aspect of the invention, the aircraft is used as a helicopter weight and torque advisory system connected to the helicopter's fuel gauge, ambient temperature and altitude indicators, and hook load sensors and operated by one of the helicopter's occupants. power supply,
It has a control panel and processing device connected to a hook load sensor, a fuel flow indicator, an outside air temperature gauge, a pressure altimeter, and an anti-icing device, the control panel and processing device having a control panel and a processing device connected to a hook load sensor, a fuel flow indicator, an outside air temperature gauge, a pressure altimeter, and an anti-icing device, and the control panel and processing device have a control panel and a processing device that are connected to a hook load sensor, a fuel flow indicator, an outside air temperature gauge, a pressure altimeter, and an anti-icing device, and the control panel and processing device are connected to a hook load sensor, a fuel flow indicator, an outside temperature gauge, a pressure altimeter, and an anti-icing device. has the calculator and memory necessary to store and calculate the center of gravity of the total weight when the external load is hoisted by each hook of the helicopter and the individual weight supported by each cargo hook of the helicopter; A helicopter weight and torque advisory device is provided having a remote display connected to a processing device and displaying the fuel weight, outside temperature and altitude of the helicopter. The helicopter weight and torque advisory device of the present invention displays in real time the torque margin of the helicopter engine, the total weight, the center of gravity of the total weight when the helicopter lifts and carries external loads, and the weight supported by each cargo hook. . The device's display alerts the occupants when the required torque approaches the available torque. Furthermore, this display device displays the total weight of the helicopter and the center of gravity (CG) of the total weight in a blinking manner when the (CG) limit is exceeded. Additionally, the display displays the weight lifted by the cargo hook and flashes when the hook load limit is reached. This device is based on the actual external load and processing equipment.
It can also be used to calculate the torque margin of the engine at the destination. The display and control panel can be mounted in the cockpit of the helicopter and can be read directly in sunlight, with or without night viewing equipment. The control panel and the control panel portion of the processing unit are
OFF switch, 3 mode switches: INTERNAL LOAD. It consists of a rope load switch 5LING LOAD and a destination engine/torque margin switch DEST. Additionally, this includes the call key RLD, test key
It has TEST and a calibration key CALB. Additionally, it has three data keys: change, scroll and enter, and a display brightness control knob. The remote display consists of three lines each capable of displaying four alphanumeric characters. The remote display and control panel and processing unit are small so that they can be installed in existing space without disturbing the existing equipment in the helicopter cockpit.

【Example】

In FIG. 1, a remote display device 10 is shown. The device 10 has three lines 12, 14 each of which can display four alphanumeric characters.
．． Has 16. The control panel and processing unit 18 are shown in FIG. The device 18 has an on/off switch 20 and three display mode keys: an internal load key 22, a rope load key 24, and a destination (DEST) key 26. Call (RCL) key 28 on the second line, test key 30
and a calibration (CALB) key 32. Furthermore, in the third row there are three data entry keys 1: a change key 34, a scroll key 36 and an input key 38. A display brightness control knob 40 is provided on the device 18 to adjust the brightness of the light to the remote display 10. FIG. 3 shows the cockpit of a CH-47B helicopter, with a remote display device 10, a control panel and a processing device 18.
Shows where it is typically installed. Remote display device 1
0 and control panel and processing equipment 18 are small enough to be installed in existing locations without interfering with equipment used in various types of helicopters. FIG. 4A shows a helicopter weight and torque advisory device 42.
A diagram of the equipment is shown showing its interface with other helicopter equipment. In this diagram, remote display device 1
0 is connected to the control panel and processing unit 18 via conductor 43. Device 18 guides! 44 to a conductor 45, and the conductor 1a45 is connected to a fuel gauge device of the helicopter. The conductor 44 is also connected to a conductor 46 which is connected to the helicopter's outside air temperature sensor device and to a 4-wire 48 which is connected to the helicopter's altitude display device. FIG. 4B shows the calculator and memory of the processing unit 18 for storing and calculating the helicopter's engine torque margin, gross weight, center of gravity of the gross weight, and the individual weights supported by each individual external cargo hook. It is shown. The load sensor, fuel gauge and outside temperature device are connected to conductors 45 and 46.5.
0 to an analog-to-digital converter 56 with multiplexer. Transducer 56 is connected to a single chip processor 58 which is connected to driver 60. The keyboard 62 of the device 18 is the encoder 6
4, which is connected to a processing device 58. A driver 60 is interfaced to a receiver 66;
The receiver is connected to a digit multiplexing controller 68 and a series/parallel connector 70, the controller 68 is connected to a digit driver 72, and the connector 70 is connected to a segment driver 74. Drivers 72 , 74 are connected to remote display 10 . Referring now to FIG. 5A, before beginning a mission, the crew turns on the device using the on/off switch 20. The display 10 displays total fuel weight in a first row 12, pressure altitude in a second row 14, and outside temperature in a third row 16. These values should be the same as those shown on the helicopter's total fuel gauge, altitude and outside temperature indicators. The occupant presses the scroll key 36 on the control panel 18 to view the helicopter's operating weight (Figure 5B), operating weight CG (Figure 5C), and engine type (Figure 5D). These are stored in the memory of the processing unit. Data entry key 1 on control panel 18
That is, the change key 34, scroll key 36, and input key 38 are used to change the displayed data. The way to enter or update data is to press change key 34, which causes the cursor on display 10 to begin flashing at the position of the first data symbol. If no changes are required at this position, the occupant then presses the enter key 38 and the cursor moves to the next symbol position. To enter or update a symbol, the occupant presses the scroll key 36 to bring up the desired symbol and then presses the enter key 38. The cursor then automatically moves to the next symbol and, at the end of the line, jumps to the first data symbol on the next line. Figures 6A, 6B, 6C, and 6D are examples of the display format that appears when the device is turned on and the scroll keys are used to display the display. First display format 5
A appears after using the scroll keys when Figure 5A is displayed. Before hoisting an external line load, the weight of the internal cargo load must be manually entered by the crew into the equipment's processor. For this purpose, the internal load switch 22 of the control panel 1B is first manipulated to the format shown in FIG. 7A, and then the data input key 1 change key 34, scroll key 36 and input key 38 are used. The system automatically and evenly distributes the weight of the indicated internal cargo load to the internal cargo compartments C, D, and E shown in Figure 13. This weight distribution is
It can be observed by pressing a key, and the display format is as shown in FIG. 7B. If the weight of the internal cargo load is not evenly distributed, the crew member may use the format of FIG. Input the load distribution unevenness into . Figures 8A and 8B are
An example is shown in which the internal payload of 16,000 bonds is unevenly distributed, and FIG. 8C shows the case where the distribution is uneven. Before hoisting an external load, the crew member activates the rope load switch 24. The display format that appears at that time is shown in FIG. 9A. Lifting the external rope load increases the total weight of the helicopter shown in the first row 12 of the display IO and also increases the weight of the total rope load shown in the second row 14 of the display 10. do. Furthermore, when lifting an external rope load, the torque margin is reduced when operating with two engines or one engine, and the display device 10
is displayed in the third row 16 of . An example of the actual display is the first
Shown in Figure 0A. If the total weight limit of the helicopter is exceeded as a result of a poor balance (center of gravity) condition, the first position of row 12 of display 10 will display an “F” for forward CG limit condition or “A” for aft CG limit condition. ” will appear and this entire line will start flashing. 14th
If the weight limit of the external cargo hook 76, 78 or 80 shown in the figure is exceeded, the overloaded hook will appear in the first position of row 14 of display 10 and the entire row 14 of display 10 will flash. . ``A'' in the first position is the front hook 76
, II C1'' indicates the center hook 78, and “D”
indicates the rear hook 80. If the torque margin (the value obtained by subtracting the required torque from the available torque) in the case of operation of two engines or one engine is exceeded, line 16 of the display device 10
The exceeded torque margin displayed on the screen starts blinking. This is shown in Figure 10B. If the occupant wishes to view the weight of an individual line load, he presses the scroll key 36, which brings up display format 9B displaying the individual line loads supported by the rank hooks. The position of the hook and the weight of the line it supports are displayed, and if the weight limit for any hook load is exceeded, the load limit, the weight value, and the hook confirmation symbol (F, C, A) will flash. do. 1 example in 1st Q
The zero occupant shown in Figure C presses either the scroll key 36 or the rope load key 24 to return to the original rope load display format 9A. DEST switch 26 is used to adjust the engine torque at the mission destination based on the actual line load, internal load and expected remaining fuel weight, altitude and temperature at the mission destination. Determine margin. When the destination switch 26 is actuated, the expected destination, altitude and temperature are displayed as shown in Figure 11A, an example being shown in Figure 12A.
As shown in the figure. These values can be updated by the crew using the data entry keys. The occupant then presses the scroll key 36 to display and update the estimated fuel remaining at the destination. The value of destination fuel remaining is shown in the second row of FIG. 11B, and an example is shown in FIG. 12B. The resulting torque margin at the destination is displayed in the third row of FIG. 11B, and will flash if exceeded. The call key RCL2B on the control panel 18 is used to display the same data (FIG. 5) that appears when the device is turned on. Test key TEST30 is for built-in testing. Calibration key CALB 32 is used to calibrate the equipment's processing equipment using data from the external cargo hook, fuel gauge, altitude and temperature indicators. Various modifications may be made to the embodiments described above within the scope of the invention as defined by the scope of the claims.

[Brief explanation of the drawing]

FIG. 1 is a diagram of the remote display device, FIG. 2 is a diagram of the control panel and the control panel of the processing device, FIG. 3 is a diagram of the helicopter cockpit receiving the remote display device, control panel, and processing device, and FIG. 4A 4B is a diagram of the advisory device and the parts of the processing device; FIGS. 5A, 5B, 5C and 5D are diagrams showing the display format when the on/off switch is actuated; Figures 6A, 6B, 6C, and 6D show examples of the display when the on/off switch is activated, and Figures 7A and 7B are the displays when the internal load switch is activated. Figures showing the format, Figures 8A, 8B, and 8
Figure C is a diagram showing an example of the display when the internal load switch is activated, Figures 9A and 9B are diagrams showing the display format when the rope load switch is activated, Figures 10A, 1QB, and 10C. The figure shows an example of the display when the rope load switch is activated, and Figures 11A and 11B show the destination (
Figures 12A and 12B are diagrams showing an example of the display when the DEST switch is activated, and Figure 13 is a diagram showing the display format when the DEST switch is activated.
A diagram showing the location of the cargo hold in the H-47D helicopter,
FIG. 14 is a diagram showing the location of the external cargo hooks on the CH-47D helicopter. 10...Remote display device, 18...Control panel and processing device (≧ 1 "1 Mini-drawing engraving (no change in content) == Go ==, 2 Self == Ding Giant =, = == Engineering = =, Eyo = = 1 = =, 11 = = = 9.1 = ÷ Procedural amendment (voluntary) 1. Waiting for the presentation of the case No. 60-292406 2) Name of the invention Helicopter weight and torque Advice device 3, relationship with the case of the person making the amendment Patent applicant name The Boeing Company 4, agent 2-2-21-6 Akasaka, Minato-ku, Tokyo 107 N-elements of amendment (1) Column of If letter

Claims (16)

[Claims] (1) In a helicopter weight and torque advisory device connected to the helicopter's fuel gauge, outside temperature and altitude indicator, and hook load sensor and operated by one of the helicopter's occupants, the aircraft's power supply, hook load It is connected to sensors, fuel gauges, outside temperature and altitude indicators, as well as the helicopter's engine torque reserve, gross weight,
and a control panel and processing device containing a calculator and necessary memory for storing and calculating the center of gravity of the gross weight and the individual weights supported by the cargo hooks when the helicopter lifts an external load; a remote display device connected to the helicopter, the display device being adapted to display fuel weight, outside temperature and altitude of the helicopter. (2) In the helicopter weight and torque advisory device according to claim (1), the control panel and processing device include an on/off switch, an internal load key, a destination key,
A helicopter weight and torque advisory device that includes three input data keys such as change, scroll and enter, along with a recall key, a calibration key and a test key. (3) The helicopter weight and torque advisory device according to claim (2), wherein the control panel and the processing device have a brightness control knob that provides light to the remote display device. . (4) In the helicopter weight and torque advisory device according to claim (1), the remote display device displays the operating weight, the balance of the operating weight, and the center of gravity. (5) In the helicopter weight and torque advisory device according to claim (1), the remote display device displays the pay and individual weights in the cargo compartment of the helicopter. (6) In the helicopter weight and torque advisory device according to claim (1), the remote display device displays individual loads of front, center and rear hooks attached to the helicopter. Device. (7) In the helicopter weight and torque advisory device according to claim (6), the remote display device visually indicates when the front hook, center hook, or rear hook reaches its load limit. Helicopter weight and torque advisory device. (8) In the helicopter weight and torque advisory device described in claim (1), when the remote display device indicates that the torque margin, total weight, center of gravity of the total weight, and individual hook load have reached their limits. , a visually flashing helicopter weight and torque advisory device. (9) In a helicopter weight and torque advisory device connected to the helicopter's fuel gauge, outside temperature and altitude indicator, and hook load sensor, and operated by one of the helicopter's occupants, the aircraft's power source, hook load. It is connected to sensors, fuel flow indicators, outside air temperature gauges, pressure altimeters, and anti-icing equipment, and is connected to the helicopter's engine torque margin, total weight, and the center of gravity of the total weight when an external load is lifted by each hook of the helicopter. and a control panel and processing unit containing a calculator and necessary memory for storing and calculating the individual weights supported by each cargo hook of the helicopter, and a remote display connected to the processing unit. a helicopter weight and torque advisory device, the display device displaying the helicopter's fuel weight, outside temperature and altitude; (10) In the helicopter weight and torque advisory device according to claim (9), the control panel and the processing device include an on/off switch, an internal load key, a rope load key, a destination key, and a call key. A helicopter weight and torque advisory device that includes three data entry keys such as scroll and enter, along with a calibration key and a test key. (11) The helicopter weight and torque advisory device according to claim (10), wherein the control panel and the processing device have a brightness control knob that provides light to the remote display device. . (12) The helicopter weight and torque advisory device according to claim (10), wherein the remote display device displays the operating weight, the balance of the operating weight, and the center of gravity. (13) The helicopter weight and torque advisory device according to claim (9), wherein the remote display device displays the toll and individual weights in the cargo hold of the helicopter. (14) In the helicopter weight and torque advisory device according to claim (9), the remote display device displays individual loads of front, center, and rear hooks attached to the helicopter. Device. (15) In the helicopter weight and torque advisory device according to claim (14), the remote display device visually indicates when the front hook, center hook, or rear hook reaches its load limit. Helicopter weight and torque advisory device. (16) In the helicopter weight and torque advisory device set forth in claim (9), when the remote display device indicates that the torque margin, total weight, center of gravity of the total weight, and individual hook load have reached their limits. , a visually flashing helicopter weight and torque advisory device.