CN105700387A - Engine starting sequential controller - Google Patents
Engine starting sequential controller Download PDFInfo
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- CN105700387A CN105700387A CN201410675823.4A CN201410675823A CN105700387A CN 105700387 A CN105700387 A CN 105700387A CN 201410675823 A CN201410675823 A CN 201410675823A CN 105700387 A CN105700387 A CN 105700387A
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- start timing
- starting
- button commands
- electromotor
- control device
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Abstract
The invention discloses an engine starting sequential controller comprising a power supply, an instruction generation unit, a starting sequential controller, a starting generator, an ignition device, a starting fuel oil solenoid valve, an engine digital controller, and a fuel oil regulator, wherein a signal output end of the instruction generation unit is respectively connected with signal input ends of the starting sequential controller and the engine digital controller; a signal output end of the starting sequential controller is respectively connected with single input ends of the starting generator, the ignition device, and the starting fuel oil solenoid valve; a signal output end of the engine digital controller is connected with a signal input end of the fuel oil regulator. Compared with the prior art, the starting sequential controller replaces a cam timing mechanism so as to improve system starting sequential control precision, and timing precision of a delay relay is much higher than a timing mechanism using a cam timer, thus improving starting system reliability, and reducing system weight.
Description
Technical field
The present invention relates to aircraft power plant field, particularly relate to a kind of engine start time sequence control device。
Background technology
Engine starting system is to be under the jurisdiction of a subsystem of aircraft power plant, and its function has been the starting of the electromotor that aircraft is installed。For ensureing that gas-turbine unit can well start, equipment is needed to forward compressor and the turbine band of electromotor to certain rotating speed, make appropriate air enter engine combustion indoor to mix mutually with fuel oil, simultaneously need to the air/fuel in engine chamber is mixed gas ignition by equipment, the necessary co-ordination of these equipment during engine start, therefore aero-jet engine starting process is engine electrical system, the complex process of fuel system and other system combined work, in starting process, start-control device is needed temporally to automatically control each starting equipment co-ordination。
Special start-control device is not designed during XX-11 electromotor design typification, but used the launcher of XX-6 electromotor, this launcher is the product of the seventies in last century, except can completing XX-11 engine start sequencing contro, also can complete the false start of this electromotor, dummy hot run, the sequencing contro of cold turn。At this h type engine h start-control device built with 1 constant speed motor and 4 cams, constitute starting timing mechanism。During work, motor constant speed drives 4 cams to rotate parallel, and owing to the shape of 4 cams designs difference, therefore each cam reaches the time difference of circuit ON, thus defining the sequencing contro signal of telecommunication。The timing control signal that launcher sends, through cable transmission to engine ignitor, starts the starting equipment such as fuel solenoid valve, starter-generator, therefore, and each starting equipment co-ordination, it is achieved that the sequencing contro of engine start。Cam timing mechanism has the disadvantage that
(1) due to the change of ground power supply voltage, the rotating speed controlling motor can change, and therefore timing error is bigger；
(2) along with the time of use increases, cam has wear cumulation, and the error of timing can increase；
(3) heavier-weight of constant speed motor and cam；
Specific term is explained: ground start, false start, dummy hot run, the implication of cold turn and purposes are as follows:
Ground start: making electromotor when resting state, starter-generator band turn, engine ignition runs to slow train rotating speed；
Cold turn: after electromotor is turned by starter belt, not to main chamber fuel feeding, the operating also not carrying out lighting a fire is called that engine cold turns, and whether normal the starting band being used for detecting electromotor turns；
False start: after electromotor is turned by starter belt, only to main chamber fuel feeding, and the operating misfired is called false start, and whether the main fuel system for checking electromotor is normal and completes the inside oil sealing of electromotor, unpacking；
Dummy hot run: after electromotor is turned by starter belt, not to main chamber fuel feeding, and the operating carrying out lighting a fire is called dummy hot run, is used for checking that whether igniter and starting fuel solenoid valve be normal。
Summary of the invention
The purpose of the present invention is that offer one solves the problems referred to above, is constituted start timing control device with time-delay relay for main devices, it is achieved the ground start of XX-11 electromotor, false start, dummy hot run, the engine start time sequence control device of cold turn。
To achieve these goals, the technical solution used in the present invention is: a kind of engine start time sequence control device, including power supply, instruction generating unit, start timing controls device, starter-generator, igniter, start fuel solenoid valve, electromotor digitial controller, fuel regulator, the signal input part that the signal output part of described instruction generating unit controls device and electromotor digitial controller with start timing respectively connects, described start timing control device signal output part respectively with starter-generator, igniter, start the connection of fuel solenoid valve signal input part, the described signal output part of electromotor digitial controller connects with the signal input part of fuel regulator。
As preferably, described instruction generating unit includes power knob instruction, ground start button commands, false start button commands, cold fortune button commands, dummy hot run button commands, described power knob instruction controls installation's power source signal input part with start timing and connects, described ground start button commands, false start button commands, cold fortune button commands, dummy hot run button commands controls device control signal input with start timing respectively and connects, described ground start button commands, false start button commands, cold fortune button commands, dummy hot run button commands connects with the control signal input of electromotor digitial controller respectively。
As preferably, the power supply signal input by the power knob instruction of instruction generating unit with start timing control device of described power supply connects。
As preferably, described start timing controls device and is mainly made up of control circuit and time-delay relay。
As preferably, described start timing controls device and adopts GJB599 III series electric connector as the signaling interface of input/output signal end。
As preferably, described power supply is 28.5V DC source。
Compared with prior art, it is an advantage of the current invention that:
1. control device replacement cam timing mechanism by start timing and improve system sequence control accuracy: the timing accuracy of time-delay relay is much higher than the timing mechanism adopting cam timer。
2. the reliability of time-delay relay is significantly high, thus improve the reliability of system；
3. reduce the weight of system。
Accompanying drawing explanation
Fig. 1 is principles of the invention block diagram；
Fig. 2 is the signaling interface block diagram of start timing device；
When Fig. 3 is ground start, the timing waveform of the output of start timing device；
Fig. 4 is cold turn, false start time, the timing waveform of the output of start timing device；
When Fig. 5 is dummy hot run, the timing waveform of the output of start timing device；
Fig. 6 is the structural representation of ground start, false start, cold clock signal generating unit when turning；
Fig. 7 is the structural representation of clock signal generating unit during dummy hot run；
Fig. 8 is the sequential control circuit schematic diagram that start timing controls within device。
Detailed description of the invention
The invention will be further described below。
Embodiment: a kind of engine start time sequence control device, including power supply, instruction generating unit, start timing controls device, starter-generator, igniter, fuel solenoid valve, electromotor digitial controller, fuel regulator, the signal input part that the signal output part of described instruction generating unit controls device and electromotor digitial controller with start timing respectively connects, described start timing control device signal output part respectively with starter-generator, igniter, fuel solenoid valve signal input part connects, the described signal output part of electromotor digitial controller connects with the signal input part of fuel regulator。During engine start, start timing control device and electromotor digitial controller jointly control the starting equipment of electromotor。Start timing controls device to be provided igniter in starting process, starts the timing control signal of fuel solenoid valve, starter-generator job demand, and electromotor digitial controller controls the main fuel supply of electromotor in starting process。
The equipment that device work is relevant is controlled: power supply is positioned on ground safeguard car and supplies electricity to start timing controls device to start timing；Starting button is positioned on ground safeguard car, sends starting order and controls device to start timing；False start button is positioned on ground safeguard car, sends false start instruction and controls device to start timing；Dummy hot run button is positioned on ground safeguard car, sends dummy hot run instruction and controls device to start timing；The cold button that turns is positioned on ground safeguard car, sends and cold turn instruction and control device to start timing；Igniter is positioned at aircraft rear body, and the signal being controlled device output by start timing controls；Electromotor digitial controller is positioned at aircraft rear body, controls the work of device combined in parallel with start timing；Starter-generator is positioned on electromotor, and the signal being controlled device output by start timing controls；Fuel solenoid valve is positioned on electromotor, and the signal being controlled device output by start timing controls；Fuel regulator is positioned on electromotor, by the main fuel governor motion that electromotor digitial controller controls。
Fig. 1 is shown in by principle of the invention block diagram, and when engines ground starts, ground handling operator connects the power supply on ground safeguard car, controls device to start timing and powers；Ground staff operates the control knob on the service truck of ground and sends control instruction and control device to start timing afterwards；Start timing control device exports start timing signal by predetermined time and logic after receiving instruction；Each clock signal is through power amplification and transmission, and control starter-generator, igniter, starting fuel solenoid valve work chronologically；Starting order can send to electromotor digitial controller simultaneously, and the main fuel supply of control electromotor, so that each adnexa co-ordination of electromotor, electromotor, through starting band turn, fuel feeding, igniting, reaches slow train rotating speed, completes the starting of electromotor。
One, start timing controls the external interface of device:
(1) signaling interface
Start timing controls device and uses GJB599 III series electric connector as the signaling interface of input and output, and this electric connector is installed on start timing and controls on the front panel of device。Start timing uses, when controlling device work, the 28.5V DC source meeting GJB181, and its input, the signaling interface block diagram exported are shown in that Fig. 2, signal type and definition are in Table 2, table 3。Receive ground start, cold turn, false start, the different instruction such as dummy hot run time, the timing waveform that start timing controls the output of device correspondence is also different。When cold turn, false start, dummy hot run and ground start, start timing controls the timing waveform of output corresponding to device and sees Fig. 3, Fig. 4, Fig. 5。
Table 1 inputs signaling interface
| Sequence number | Title | Type | Remarks |
| 1 | Power supply+ | Analog quantity | The power supply of start-control device |
| 2 | Ground start | Switching value | The control instruction accepted, the persistent period should be not less than 2s |
| 3 | False start | Switching value | The control instruction accepted, the persistent period should be not less than 2s |
| 4 | Cold turn | Switching value | The control instruction accepted, the persistent period should be not less than 2s |
| 5 | Dummy hot run | Switching value | The control instruction accepted, the persistent period should be not less than 2s |
Table 2 exports signaling interface
(2) mounting interface
Start timing controls device provides four lug-mounteds, opens 1 Φ 4.2 through hole fixing for installing bolt on each lug-mounted, and installing hole is from for 145mm × 65mm。
Two, start timing controls the internal structure of device:
Start timing controls device internal main and to be made up of semaphore lock unit, clock signal generating unit two parts, main composition device is aeronautical relay, Fig. 8 is shown in the electrical connection of each device, in figure, code name is K1, K2, K3, K4, K5, K6, K7, K8 is time-delay relay, by the action of time-delay relay, start timing control the clock signal shown in device exportable Fig. 3, Fig. 4, Fig. 5, for engine starting system starter-generator, start fuel solenoid valve, ignition coil control。
(1) instruction lock cell
Operator send ground start, cold turn, false start, the instruction such as dummy hot run be when controlling device to start timing, the persistent period of pressing button is shorter, after button is upspring, button is emitted to the signal of start timing control device and can disappear, therefore, the 1.8s time delayed signal that start timing controls within device utilization carrys out lock instruction, to ensure to can continue to work after command signal terminates。
The main composition device of start timing control instruction lock cell within device and code name are in Table 4, and Fig. 8 is shown in the electrical connection of each device。
The main composition device of table 4 instruction lock cell
| Device | Purposes | Type |
| K1 | The locking of ground start control signal, protection and control logic realization | Electromagnetic relay |
| K2 | The locking of false start, cold rotaring signal, protection and control logic realization | Electromagnetic relay |
| K3 | Dummy hot run semaphore lock, protection and control logic realization | Solid-state relay |
Ground start command signal locking workflow is as follows, and during ground start, start timing controls device after receiving command signal, and self contact is connected in the action immediately of K1 relay；1.8s time-delay relay 1.8s action after receiving instruction of clock signal generating unit, connects self contact；When K1 relay receive the persistent period of instruction more than 1.8s after, the contact that 1.8s time-delay relay is connected will feed back to 28.5V voltage the coil anode of K1 relay by the contact of K1 relay, so that after ground start instruction disappearance, the coil anode of K1 relay yet suffers from running voltage, work on, so that each time-delay relay works on；Until the time reaches 42s, the 42s time-delay relay action of clock signal generating unit, cut off the power supply of 1.8s time-delay relay, 1.8s time-delay relay is quit work, its contact disconnects, semaphore lock loop thereby through 1.8s time-delay relay contact disconnects, and K1 relay stops the locking of ground starting order, and start timing controls device and quits work。
Cold turn, false start, dummy hot run instruction self-lock mechanism identical with ground start。
False start, the signal self-locking of cold turn and logic control flow process are as follows, for realizing the logic of output timing waveshape signal, K2 instruction lock-up relay has multipair contact, utilizes the break-make of its residue contact to control the break-make of " starting fuel oil/ignition coil " output timing signal。
According to electromotor needs, dummy hot run needs to terminate when 13s, uses 13s time-delay relay to instead of 42s relay during dummy hot run。
(2) clock signal generating unit
Clock signal generating unit, for producing the time signal needed in starting process, can send the on-off model of 1.8s, 4.1s, 8.5s, 13s, 42s on request, is mainly made up of time-delay relay, and Fig. 8 is shown in the electrical connection of each time-delay relay。
Table 5 start timing controls the timing sequencer part within device
| Code name | Time delay | Type |
| K4 | 42s | Time delay 1 type |
| K5 | 13s | Time delay 1 type |
| K6 | 1.8s | Time delay 1 type |
| K7 | 4.1s | Time delay 1 type |
| K8 | 8.5s | Time delay 1 type |
Corresponding relation between each time-delay relay code name and time delay is in Table 5, ground start, false start, cold clock signal generating unit when turning control structure see Fig. 6, ground start, false start and cold when turning, after corresponding instruction sends, start timing controls device by instruction lock-up relay, 28.5V running voltage is added in K4 time-delay relay coil two ends, K4 time-delay relay is started working, K4 time-delay relay contact default conditions are on-state, therefore K6, K7, K8 time-delay relay obtains 28.5V running voltage by the contact of K4, also begins to work；When 42s, K4 time-delay relay action, its contact disconnects, the power supply of K6, K7, K8 time-delay relay is cut off, therefore the clock signal of K6, K7, K8 time-delay relay contact output all terminates, now start timing controls the voltage of device sequential outfan is all 0V, and start timing controls device work and stops。
During dummy hot run, the control structure of clock signal generating unit is shown in Fig. 7, during dummy hot run, by instruction lock-up relay, 28.5V running voltage is added in K5 time-delay relay coil two ends, K5 time-delay relay is started working, K5 time-delay relay contact default conditions are on-state, and therefore K6, K7, K8 time-delay relay obtains 28.5V running voltage by the contact of K5 time-delay relay, also begins to work；When 13s, K5 time-delay relay action, its contact disconnects, the power supply of K6, K7, K8 time-delay relay is cut off, therefore the clock signal of K6, K7, K8 contact output all terminates, and now start timing controls the voltage of device sequential outfan is all 0V, and start timing controls device and quits work。
Except this programme, full powers limit electromotor numerical control system is used to control the start timing of electromotor, it is possible to the start timing completing electromotor automatically controls。
Above a kind of engine start time sequence control device provided by the present invention is carried out exhaustive presentation, principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously, for one of ordinary skill in the art, thought according to the present invention, all will change in specific embodiments and applications, change and improvement to the present invention will be possible, without beyond the design of accessory claim defined and scope, in sum, this specification content should not be construed as limitation of the present invention。
Claims (6)
1. an engine start time sequence control device, it is characterized in that: include power supply, instruction generating unit, start timing controls device, starter-generator, igniter, start fuel solenoid valve, electromotor digitial controller, fuel regulator, the signal input part that the signal output part of described instruction generating unit controls device and electromotor digitial controller with start timing respectively connects, described start timing control device signal output part respectively with starter-generator, igniter, start the connection of fuel solenoid valve signal input part, the described signal output part of electromotor digitial controller connects with the signal input part of fuel regulator。
2. a kind of engine start time sequence control device according to claim 1, it is characterized in that: described instruction generating unit includes power knob instruction, ground start button commands, false start button commands, cold fortune button commands, dummy hot run button commands, described power knob instruction controls installation's power source signal input part with start timing and connects, described ground start button commands, false start button commands, cold fortune button commands, dummy hot run button commands controls device control signal input with start timing respectively and connects, described ground start button commands, false start button commands, cold fortune button commands, dummy hot run button commands connects with the control signal input of electromotor digitial controller respectively。
3. a kind of engine start time sequence control device according to claim 2, it is characterised in that: the power supply signal input by the power knob instruction of instruction generating unit with start timing control device of described power supply connects。
4. a kind of engine start time sequence control device according to claim 1, it is characterised in that: described start timing controls device and is mainly made up of control circuit and time-delay relay。
5. a kind of engine start time sequence control device according to claim 1, it is characterised in that: described start timing controls device and adopts GJB599 III series electric connector as the signaling interface of input/output signal end。
6. a kind of engine start time sequence control device according to claim 1, it is characterised in that: described power supply is 28.5V DC source。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410675823.4A CN105700387A (en) | 2014-11-23 | 2014-11-23 | Engine starting sequential controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410675823.4A CN105700387A (en) | 2014-11-23 | 2014-11-23 | Engine starting sequential controller |
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| CN105700387A true CN105700387A (en) | 2016-06-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108708790A (en) * | 2018-04-19 | 2018-10-26 | 中国航发南方工业有限公司 | The progress of starting sequence control device and control method of fanjet |
| CN110487550A (en) * | 2019-08-28 | 2019-11-22 | 中国航发南方工业有限公司 | A kind of aircraft engine test stand starting investigating method |
| CN111434906A (en) * | 2019-01-12 | 2020-07-21 | 上海航空电器有限公司 | Starting box system based on solid relay design |
| CN113911375A (en) * | 2021-11-03 | 2022-01-11 | 哈尔滨哈飞航空工业有限责任公司 | Manual starting control circuit for helicopter engine |
| CN114070132A (en) * | 2021-11-29 | 2022-02-18 | 上海尚实能源科技有限公司 | Motor control circuit and motor control system of auxiliary power device |
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| CN114070132A (en) * | 2021-11-29 | 2022-02-18 | 上海尚实能源科技有限公司 | Motor control circuit and motor control system of auxiliary power device |
| CN114070132B (en) * | 2021-11-29 | 2022-11-22 | 上海尚实航空发动机股份有限公司 | Motor control circuit and motor control system of auxiliary power device |
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Application publication date: 20160622 |