CN114056581B - Windshield heating control method and system - Google Patents
Windshield heating control method and system Download PDFInfo
- Publication number
- CN114056581B CN114056581B CN202111565789.1A CN202111565789A CN114056581B CN 114056581 B CN114056581 B CN 114056581B CN 202111565789 A CN202111565789 A CN 202111565789A CN 114056581 B CN114056581 B CN 114056581B
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- China
- Prior art keywords
- windshield
- temperature
- control
- limit
- overshoot
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009125 negative feedback regulation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/12—De-icing or preventing icing on exterior surfaces of aircraft by electric heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
- H05B3/86—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
Abstract
The application belongs to the technical field of aircraft windshield heating control design, and particularly relates to a windshield heating control method, which comprises the following steps: heating the windshield when the temperature on the windshield is below the upper windshield temperature control limit until the temperature on the windshield exceeds the calculated difference between the upper windshield temperature control limit and the upper limit overshoot control temperature; taking the difference between the lower control limit of the windshield temperature and the minimum value of the temperature on the windshield as the lower overshoot control temperature; taking the difference value between the maximum value of the temperature on the windshield and the upper control limit of the windshield temperature as an upper limit overshoot control temperature; when the temperature on the windshield is below the sum of the windshield temperature control lower limit and the lower limit overshoot control temperature, the windshield is heated again. In addition, the windshield heating control system controls the temperature of the windshield based on the windshield heating control method.
Description
Technical Field
The application belongs to the technical field of aircraft windshield heating control design, and particularly relates to a windshield heating control method and a windshield heating control system.
Background
In order to avoid the situation that mist is adhered to or icing occurs on the aircraft windshield, a windshield heating control system is designed to heat the aircraft windshield and control the temperature of the aircraft windshield, the aircraft windshield is of a multi-layer medium laminated structure, the thermal inertia is large, the temperature of the aircraft windshield is controlled by the current windshield heating control system, the temperature overshoot phenomenon is easy to occur, the temperature on the aircraft windshield is too high, the service life of the aircraft windshield is damaged, or the temperature on the aircraft windshield is too low, and the aircraft windshield cannot be effectively anti-fog and anti-icing.
The present application has been made in view of the above-described technical drawbacks.
It should be noted that the above disclosure of the background art is only for aiding in understanding the inventive concept and technical solution of the present application, which is not necessarily prior art to the present patent application, and should not be used for evaluating the novelty and creativity of the present application in the case where no clear evidence indicates that the above content has been disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide a method and system for windshield heating control that overcomes or mitigates at least one of the known technical drawbacks.
The technical scheme of the application is as follows:
one aspect provides a windshield heating control method comprising:
heating the windshield when the temperature on the windshield is below the upper windshield temperature control limit until the temperature on the windshield exceeds the calculated difference between the upper windshield temperature control limit and the upper limit overshoot control temperature;
taking the difference between the lower control limit of the windshield temperature and the minimum value of the temperature on the windshield as the lower overshoot control temperature;
taking the difference value between the maximum value of the temperature on the windshield and the upper control limit of the windshield temperature as an upper limit overshoot control temperature;
when the temperature on the windshield is below the sum of the windshield temperature control lower limit and the lower limit overshoot control temperature, the windshield is heated again.
Optionally, in the above method for controlling heating of a windshield, when the temperature on the windshield is lower than the upper control limit of the windshield temperature, heating the windshield until the temperature on the windshield exceeds the difference between the upper control limit of the windshield temperature and the upper overshoot control temperature, specifically:
heating the windshield when the temperature on the windshield is below the upper windshield temperature control limit until the temperature on the windshield exceeds the upper windshield temperature control limit and the upper limit overshoot control temperature n max A difference of a multiple, wherein,
wherein,
n max controlling a temperature adjustment coefficient for the upper limit overshoot;
Δt max controlling the temperature for the upper limit overshoot;
t upper part An upper control limit for the windshield temperature.
Optionally, in the above method for controlling heating of a windshield, the upper limit overshoot control temperature and the upper limit overshoot control temperature adjustment coefficient are initialized to 0.
Optionally, in the above method for controlling heating of a windshield, the temperature on the windshield is lower than a sum value calculated by a lower limit control temperature and a lower limit overshoot control temperature of the windshield, and the windshield is heated again, specifically:
the temperature on the windscreen is lower than the lower control limit of the windscreen temperature and the lower overshoot control temperature n min At the multiple sum, the windscreen is again heated, wherein,
wherein,
n min controlling a temperature adjustment coefficient for the lower limit overshoot;
Δt min controlling the temperature for the upper limit overshoot;
t lower part(s) Is the lower control limit for the windshield temperature.
Another aspect provides a windshield heating control system comprising:
a temperature sensor for acquiring the temperature of the windshield;
a heater for heating the windshield;
and the controller is connected with the temperature sensor and the heater to form negative feedback regulation for controlling the temperature of the windshield, and controls the temperature of the windshield based on any windshield heating control method.
Optionally, in the windshield heating control system, the windshield is a multi-layer glass structure;
the temperature sensor and the heater are embedded in the multilayer structure of the windshield.
The application has at least the following beneficial technical effects:
the method for controlling the heating of the windshield is provided, when the temperature on the windshield is lower than the upper limit of the temperature control of the windshield, the heating of the windshield is started, so that the situation that the temperature on the windshield is too low due to large thermal inertia is avoided, after the heating of the windshield is started, the heating of the windshield is stopped until the temperature on the windshield exceeds the calculated difference value of the upper limit of the temperature control of the windshield and the upper limit of the overshoot control temperature, the situation that the temperature on the windshield is too high due to large thermal inertia is avoided, in the heating process of the windshield, the difference value of the lower limit of the temperature control of the windshield and the minimum value of the upper temperature of the windshield is used as the lower limit of the overshoot control temperature, and after the heating of the windshield is stopped, the difference value of the maximum value of the upper temperature of the windshield and the upper limit of the temperature of the windshield is used as the upper limit of the overshoot control temperature, and the overshoot control temperature is calculated and the sum value of the lower limit of the temperature of the windshield, the heating of the windshield is started again, so that the windshield is prevented from being too low due to large thermal inertia, the temperature of the windshield, the overshoot control temperature of the windshield and the upper limit of the windshield and the overshoot control temperature is updated in each period, the overshoot temperature can be prevented, and the overshoot phenomenon between the upper limit and the temperature can be prevented from being high, and stable, and overshoot temperature can occur in the upper limit and lower temperature, and overshoot temperature can be controlled in real time.
Furthermore, a windshield heating control system is provided, which is implemented based on the windshield heating control method described above, and the advantageous technical effects can be referred to as the technical effects of the windshield heating control method.
Drawings
FIG. 1 is a schematic flow chart of a method for controlling windshield heating according to an embodiment of the present application;
fig. 2 is a schematic diagram of a windshield heating control system provided by an embodiment of the present application.
Fig. 3 is a schematic diagram of heating control of an aircraft windshield provided by an embodiment of the present application.
For the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; further, the drawings are for illustrative purposes and the positional relationship thereof is limited to the illustrative description and should not be construed as limiting the present patent.
Detailed Description
In order to make the technical solution of the present application and its advantages more clear, the technical solution of the present application will be further and completely described in detail with reference to the accompanying drawings, it being understood that the specific embodiments described herein are only some of the embodiments of the present application, which are for explanation of the present application and not for limitation of the present application. It should be noted that, for convenience of description, only the part related to the present application is shown in the drawings, and other related parts may refer to the general design, and the embodiments of the present application and the technical features of the embodiments may be combined with each other to obtain new embodiments without conflict.
Furthermore, unless defined otherwise, technical or scientific terms used in the description of the application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," "outer," and the like as used in the description of the present application are merely used for indicating relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and that the relative positional relationships may be changed when the absolute position of the object to be described is changed, thus not being construed as limiting the application. The terms "first," "second," "third," and the like, as used in the description of the present application, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance to the various components. The use of the terms "a," "an," or "the" and similar referents in the description of the application are not to be construed as limiting the amount absolutely, but rather as existence of at least one. As used in this description of the application, the terms "comprises," "comprising," or the like are intended to cover an element or article that appears before the term as such, but does not exclude other elements or articles from the list of elements or articles that appear after the term.
Furthermore, unless specifically stated and limited otherwise, the terms "mounted," "connected," and the like in the description of the present application are used in a broad sense, and for example, the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements, and the specific meaning of the two elements can be understood by a person skilled in the art according to specific situations.
The application will be described in further detail below with reference to fig. 1 to 3, taking as an example the control of the heating of the temperature of an aircraft windscreen.
The heating control method for the temperature of the windshield glass of the airplane is as shown in fig. 3, and specifically comprises the following steps:
initializing Δt max ＝0、n max =0, where Δt max For upper limit overshoot control temperature, Δt min Controlling the temperature for the lower limit overshoot;
at t < t Upper part When the temperature is lower than t, heating the aircraft windshield glass until t is lower than t Upper part -n max Δt max Wherein t is the temperature on the windshield glass of the aircraft, and can be acquired by a temperature sensor specifically, t Upper part Upper limit of temperature control of aircraft windshield, n max Controlling a temperature adjustment coefficient for the upper limit overshoot;
during heating of the aircraft windshield, a minimum value t of the temperature on the aircraft windshield is recorded min Calculating and updating the lower limit overshoot control temperature Δt min ＝t min -t Lower part(s) Wherein t is Lower part(s) A lower control limit for the temperature of the aircraft windshield;
after stopping heating the aircraft windshield, the maximum value of the temperature on the aircraft windshield is recordedt max Calculating and updating the lower limit overshoot control temperature Δt max ＝t max -t Upper part ；
At t < t Lower part(s) +n min Δt min At this time, the windshield is heated again, where n min The temperature adjustment coefficient is controlled for the lower limit overshoot.
The following formula is constructed according to the thermal inertia of the aircraft windshield:
the method comprises the following steps:
then the following may be made:
wherein,
t upper part ' is an estimate for controlling the temperature on the aircraft windshield beyond the upper control limit for the temperature of the aircraft windshield;
Δt max ' is an overexcitation estimation value for controlling the temperature of the windshield of the aircraft to exceed the upper control limit of the temperature of the windshield of the aircraft;
the following formula is constructed:
the method comprises the following steps:
then the following may be made:
wherein,
t upper part ' for controlling aircraft windshieldsAn estimate of the temperature on the glass below a lower control limit for the aircraft windshield temperature;
Δt min ' is an estimate of the amount of overshoot that controls the temperature of the aircraft windshield below the lower control limit for the temperature of the aircraft windshield.
For controlling the temperature on the windshield of the aircraft, a heating control system is designed, comprising:
the temperature sensor is used for collecting the temperature of the windshield glass of the airplane;
the heater is used for heating the aircraft windshield;
and the controller is connected with the temperature sensor and the heater to form negative feedback regulation for controlling the temperature of the aircraft windshield glass, and controls the temperature of the aircraft windshield glass based on the aircraft windshield glass heating control method.
In some alternative embodiments, the aircraft windshield heating control system described above wherein the aircraft windshield is a multiple layer glass structure;
the temperature sensor and the heater are embedded in the multilayer structure of the aircraft windshield glass, are not easy to damage and are not easy to be influenced by the outside, and can accurately collect the temperature of the aircraft windshield glass and stably heat the aircraft windshield glass, wherein the heater can be an electric heating element and comprises an indium oxide film.
In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred.
Having thus described the technical aspects of the present application with reference to the preferred embodiments shown in the drawings, it should be understood by those skilled in the art that the scope of the present application is not limited to the specific embodiments, and those skilled in the art may make equivalent changes or substitutions to the related technical features without departing from the principle of the present application, and those changes or substitutions will fall within the scope of the present application.
Claims (3)
1. A windshield heating control method characterized by comprising:
heating the windshield when the temperature on the windshield is below the upper windshield temperature control limit until the temperature on the windshield exceeds the calculated difference between the upper windshield temperature control limit and the upper limit overshoot control temperature;
taking the difference between the lower control limit of the windshield temperature and the minimum value of the temperature on the windshield as the lower overshoot control temperature;
taking the difference value between the maximum value of the temperature on the windshield and the upper control limit of the windshield temperature as an upper limit overshoot control temperature;
heating the windshield again when the temperature on the windshield is below the sum of the windshield temperature control lower limit and the lower limit overshoot control temperature calculation;
heating the windshield when the temperature on the windshield is lower than the upper control limit of the windshield temperature until the temperature on the windshield exceeds the difference value calculated by the upper control limit of the windshield temperature and the upper overshoot control temperature, specifically:
heating the windshield when the temperature on the windshield is below the upper windshield temperature control limit until the temperature on the windshield exceeds the upper windshield temperature control limit and the upper limit overshoot control temperature n max A difference of a multiple, wherein,
wherein,
n max controlling a temperature adjustment coefficient for the upper limit overshoot;
Δt max controlling the temperature for the upper limit overshoot;
t upper part An upper control limit for the windshield temperature;
initializing an upper limit overshoot control temperature and an upper limit overshoot control temperature adjustment coefficient to 0;
the temperature on the windshield is lower than the sum value calculated by the lower limit of the temperature control of the windshield and the lower limit overshoot control temperature, and the windshield is heated again, specifically:
the temperature on the windscreen is lower than the lower control limit of the windscreen temperature and the lower overshoot control temperature n min At the multiple sum, the windscreen is again heated, wherein,
wherein,
n min controlling a temperature adjustment coefficient for the lower limit overshoot;
Δt min controlling the temperature for the upper limit overshoot;
t lower part(s) Is the lower control limit for the windshield temperature.
2. A windshield heating control system, comprising:
a temperature sensor for acquiring the temperature of the windshield;
a heater for heating the windshield;
a controller connected to the temperature sensor and the heater to form a negative feedback control for controlling the temperature of the windshield, and controlling the temperature of the windshield based on the windshield heating control method according to any one of claims 1.
3. The windshield heating control system of claim 2 wherein the windshield heating control system,
the windshield glass is of a multi-layer glass structure;
the temperature sensor and the heater are embedded in the multilayer structure of the windshield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111565789.1A CN114056581B (en) | 2021-12-20 | 2021-12-20 | Windshield heating control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111565789.1A CN114056581B (en) | 2021-12-20 | 2021-12-20 | Windshield heating control method and system |
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| Publication Number | Publication Date |
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| CN114056581A CN114056581A (en) | 2022-02-18 |
| CN114056581B true CN114056581B (en) | 2023-11-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828841U (en) * | 2010-09-27 | 2011-05-11 | 秦皇岛科普铁科实用技术开发中心 | Anti-freezing anti-frosting automatic sensing control system for railway locomotive windshield window |
| CN204821482U (en) * | 2015-08-12 | 2015-12-02 | 中国航空工业集团公司西安飞机设计研究所 | Anti -icing defogging system of hybrid aircraft windscreen |
| CN110422312A (en) * | 2019-07-26 | 2019-11-08 | 北京神导科讯科技发展有限公司 | Method for heating and controlling, device, equipment and the medium of helicopter windshield |
| WO2020096477A1 (en) * | 2018-11-09 | 2020-05-14 | Дмитрий Вячеславович ФЕДОТОВ | Thermodynamic test bench for simulating aerodynamic heating |
| CN112822805A (en) * | 2019-11-15 | 2021-05-18 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
-
2021
- 2021-12-20 CN CN202111565789.1A patent/CN114056581B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828841U (en) * | 2010-09-27 | 2011-05-11 | 秦皇岛科普铁科实用技术开发中心 | Anti-freezing anti-frosting automatic sensing control system for railway locomotive windshield window |
| CN204821482U (en) * | 2015-08-12 | 2015-12-02 | 中国航空工业集团公司西安飞机设计研究所 | Anti -icing defogging system of hybrid aircraft windscreen |
| WO2020096477A1 (en) * | 2018-11-09 | 2020-05-14 | Дмитрий Вячеславович ФЕДОТОВ | Thermodynamic test bench for simulating aerodynamic heating |
| CN110422312A (en) * | 2019-07-26 | 2019-11-08 | 北京神导科讯科技发展有限公司 | Method for heating and controlling, device, equipment and the medium of helicopter windshield |
| CN112822805A (en) * | 2019-11-15 | 2021-05-18 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
| WO2021093077A1 (en) * | 2019-11-15 | 2021-05-20 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
Non-Patent Citations (1)
| Title |
|---|
| 基于适航标准的飞机风挡加温系统控制方式研究;瑚洋;林丽;;航空工程进展(第03期);全文 * |
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