CN103868201A - High-speed motor train unit air conditioner control method suitable for high-cold environment - Google Patents
High-speed motor train unit air conditioner control method suitable for high-cold environment Download PDFInfo
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- CN103868201A CN103868201A CN201410106088.5A CN201410106088A CN103868201A CN 103868201 A CN103868201 A CN 103868201A CN 201410106088 A CN201410106088 A CN 201410106088A CN 103868201 A CN103868201 A CN 103868201A
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- Prior art keywords
- environment
- temperature
- psychro
- conditioning system
- control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
Abstract
The invention relates to a high-speed motor train unit air conditioner control method suitable for the high-cold environment and belongs to the technical field of automatic control. A controller of an air conditioning system receives a signal of an outside temperature sensor to identify an environmental temperature; when the environmental temperature Toutside identified by the outside temperature sensor of the vehicle air conditioning system is lower than a set value Td, the air conditioning system is transferred into a control program of a high cold environment-heating equipment operation control logic, or the air conditioning system executes a conventional automatic control logic; when the suddenly changed temperature difference of the Toutside is more than or equal to delta T in time of less than or equal to S1 (min), the air conditioning system enters a program of a high cold environment-low temperature vehicle maintenance control logic; and if the Toutside is lower than or equal to Tf, starting an antifreezing mode of the air conditioning system. According to the invention, equipment of the air conditioning system can be protected; the temperature in a carriage comprising an end part region is guaranteed to meet the requirement for comfort under the condition of operating in the high-cold environment; and the end part region or a doorway of a vehicle is effectively prevented from being frosted.
Description
Technical field
The invention belongs to technical field of automatic control, relate to a kind of speed motor train unit air conditioner control method.
Background technology
Along with the development of Chinese Railway cause, EMU has run through on both sides of the Changjiang River.But because of differing greatly of north-south climate, for EMUs, in the short time, to pass through Different Climatic Zones at a high speed, need to carry out various adaptability design and control.Especially for air-conditioning system, not only the north-south climate temperature difference is large, and north of china in winter inspection and maintenance also needs that equipment is had to special safeguard measure.North of china in winter, when vehicle operating, environment temperature is ultralow, sometimes even there is ice and snow weather, and snow melt, maintenance, maintenance etc. need to be carried out under normal temperature laboratory, more than indoor/outdoor temperature-difference maximum can reach 60K like this, therefore just require vehicle to be not only equipped with and can adapt to the hardware device that the temperature difference is suddenlyd change, also will have rational control method to adapt to this huge temperature difference sudden change situation.
At present, domestic EMU, air-conditioning system all adopts automatic control, and the logic of automatically controlling can meet the comfortableness demand under nominal situation.But for the air-conditioning system that is applied to extremely frigid zones, be only the demand that the automatic control of versatility cannot meet psychro-environment.
Existing air-conditioning system, is running into low temperature severe snow weather, and air-conditioning unit condensation chamber can be sealed by ice and snow, and the equipment component ice that even can lump is stifled.For low temperature operation state, common vehicle only has charged antifreeze startup measure of depositing outside low temperature storehouse, and does not comprise the control system counter-measure under the low temperature environment of the aspects such as reply operation and maintenance, maintenance.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of speed motor train unit air conditioner control method that is applicable to psychro-environment, to adapt under psychro-environment operation and to realize in the situation that the larger temperature difference appears in the short time equipment is effectively protected.
The scheme of technical solution problem of the present invention is to adopt following steps to complete:
1. the controller of air-conditioning system receives external temperature sensor signal, and environment temperature is identified, and if do not satisfied condition, is considered as common environmental condition, and air-conditioning system is carried out conventional control logic automatically;
2. the environment mean temperature T recognizing when the external temperature sensor of vehicle air conditioner
outwardlower than setting value T
d(T
outward≤ T
d) time, air-conditioning system proceeds to the control program of " psychro-environment-firing equipment operation control logic ";
3. under the state of the 2nd article of description, T
outward≤ S
1(min) temperature difference>=△ T of sudden change in the time, air-conditioning system enters the program of " psychro-environment-low temperature vehicle maintenance control logic ";
4. under the state of " psychro-environment-low temperature vehicle maintenance control logic ", if T
outward≤ T
f(T
ffor anti-freezing pattern starts set temperature value), preferentially start air-conditioning system anti-freezing pattern;
5. in " psychro-environment-low temperature vehicle maintenance control logic " program operation process, during if any the order input of driver's manual-lock or vehicle cutting-off controlling device power supply, all EPs (end of program);
6。" psychro-environment-low temperature vehicle maintenance control logic " program continuous service exceedes S
2after time period, air-conditioning system automatically switches to the program of step (1) and (2), to environment temperature being proceeded to identification.
Described " psychro-environment-low temperature vehicle maintenance control logic " program operation is in order to prevent that the equipment short time is from low-temperature condition to the hot environment of keeping in repair in storehouse, then gets back to suddenly in outdoor low-temperature condition process, and equipment is endured cold and damaged.
Under the state of step 2, driver inputs low temperature vehicle maintenance control signal, and air-conditioning system enters the program of " psychro-environment-low temperature vehicle maintenance control logic ".
Under the pattern of " psychro-environment-firing equipment operation control logic ", air-conditioning system has adopted two kinds of methods to control the condition and the lasting start-up time that start heating, adapts to ultralow environment temperature to realize:
(1) porch place is provided with temperature sensor, is used for controlling the temperature in porch region.Controller can judge according to the value of feedback of this sensor, the start-stop time of control heater." psychro-environment-firing equipment operation control logic " logically gives a kind of correction to the control point of porch temperature, to effectively improve by the temperature of platform in the time of low temperature environment.Porch by platform control point set temperature value is: T
h=T
s+ △ T
hwherein, T
hfor psychro-environment control point set temperature value; T
sfor conventional environment control point desired temperature; △ T
hfor high and cold porch environment temperature control point correction value, this correction value is one and accumulated the function of calculating out by experimental data, and this function can represent with a curve, see " Fig. 2. psychro-environment porch temperature control point correction value function curve ".(2) logically give a kind of correction to the feedback time of heater starting, to adapt to low temperature environment, the feedback identifying time S of definition heater starting
h: S
h=S
s+ △ S
hwherein, S
hfor psychro-environment air-conditioner controller allows the feedback time of identifying; S
sfor conventional environment control point feedback time; △ S
hfor psychro-environment temperature feedback time correction value, this correction value is a function of being calculated by experimental data accumulation, and this function can represent with a curve, see " Fig. 3. psychro-environment temperature feedback time correction value function curve ".
Control system is judged automatically
" psychro-environment-low temperature vehicle maintenance control logic " pattern, the control decision logic of this pattern is, as the external environment mean temperature T of vehicle temperature sensor identification
outwardbe less than or equal to S
1(min) when in the time, the temperature difference of sudden change exceedes (being more than or equal to) △ T, open, this pattern continues S
2(min), after the time, proceed to automatic control mode or psychro-environment control model (according to environment temperature identification), if occur during this period that environment temperature is dropped rapidly to anti-freezing pattern set point T
ftime, anti-freezing pattern preferentially starts, until driver's manual ringing is got involved or reached S running time
2(min), after, proceed to automatic control mode or psychro-environment control model (according to environment temperature identification).Concrete control logic schematic diagram, is shown in Fig. 4: low temperature vehicle maintenance control logic schematic diagram.
Wherein T
dfor-13 to-18 DEG C
S
1it is 8 to 12 minutes
△ T is 30 to 40 DEG C
T
ffor-2 to 6 DEG C
S
2it is 4 to 6 hours.
The present invention can protect the equipment of air-conditioning system; avoid cause equipment fault in batches at extremely frigid zones its winter; can ensure that the temperature that comprises end regions in compartment can both meet comfortableness requirement under the condition of psychro-environment operation, and effectively prevent vehicle end region or doorway frosting.
Brief description of the drawings
Fig. 1 is flow chart of the present invention;
Fig. 2 is psychro-environment porch temperature control point correction value function curve diagram;
Fig. 3 is psychro-environment temperature feedback time correction value function curve diagram;
Fig. 4 is low temperature vehicle maintenance control logic schematic diagram.
Detailed description of the invention
Control method of the present invention is when in vehicle operating process, and the controller of air-conditioning system receives external temperature sensor signal, and environment temperature is identified, and if do not satisfied condition, is considered as common environmental condition, and air-conditioning system is carried out conventional control logic automatically; The environment mean temperature T recognizing when the external temperature sensor of vehicle air conditioner
outwardduring lower than-15 DEG C, air-conditioning system proceeds to the control program of " psychro-environment-firing equipment operation control logic "; T
outwardthe temperature difference of suddenling change in 10 minutes exceedes 35 DEG C, and air-conditioning system enters the program of " psychro-environment-low temperature vehicle maintenance control logic "; Under the state of " psychro-environment-low temperature vehicle maintenance control logic ", if T
outwardlower than 0 DEG C, preferentially start air-conditioning system anti-freezing pattern; In " psychro-environment-low temperature vehicle maintenance control logic " program operation process, during if any the order input of driver's manual-lock or vehicle cutting-off controlling device power supply, all EPs (end of program); As " psychro-environment-low temperature vehicle maintenance control logic " program continuous service exceedes 5h hour, air-conditioning system automatically switches to the program of " psychro-environment-firing equipment operation control logic ".
Under the state of step 2, driver inputs low temperature vehicle maintenance control signal, and air-conditioning system enters the program of " psychro-environment-low temperature vehicle maintenance control logic ".
Under the pattern of " psychro-environment-firing equipment operation control logic ", air-conditioning system has adopted two kinds of methods to control the condition and the lasting start-up time that start heating, adapts to ultralow environment temperature to realize:
(1) porch place is provided with temperature sensor, is used for the temperature in FEEDBACK CONTROL porch region.Controller can judge according to this value of feedback, the start-stop time of control heater." psychro-environment-firing equipment operation control logic " logically gives a kind of correction to the control point of porch temperature, to effectively improve by the temperature of platform in the time of low temperature environment.Porch by platform control point set temperature value is: T
h=T
s+ △ T
hwherein, T
hfor psychro-environment control point set temperature value; T
sfor conventional environment control point desired temperature; △ T
hfor high and cold porch environment temperature control point correction value, this correction value is one and accumulated the function of calculating out by experimental data, and this function can represent with a curve, see " Fig. 2. psychro-environment porch temperature control point correction value function curve ".(2) logically give a kind of correction to the feedback time of heater starting, to adapt to low temperature environment.The feedback identifying time S of definition heater starting
h: S
h=S
s+ △ S
hwherein, S
hfor psychro-environment air-conditioner controller allows the feedback time of identifying; S
sfor conventional environment control point feedback time; △ S
hfor psychro-environment temperature feedback time correction value, this correction value is a function of being calculated by experimental data accumulation, and this function can represent with a curve, see " Fig. 3. psychro-environment temperature feedback time correction value function curve ".
Wherein control system is judged automatically
" psychro-environment-low temperature vehicle maintenance control logic " pattern, the control decision logic of this pattern is, as the external environment mean temperature T of vehicle temperature sensor identification
outwardwhen within being less than or equal to minute, the temperature difference of sudden change exceedes 35 DEG C, open, this pattern continued after 5 hours, proceed to automatic control mode or psychro-environment control model (according to environment temperature identification), if while occurring during this period that environment temperature is dropped rapidly to 0 DEG C of anti-freezing pattern set point, anti-freezing pattern preferentially starts, until driver's manual ringing is got involved or reached running time after 5 hours, proceed to automatic control mode or psychro-environment control model (according to environment temperature identification).Concrete control logic schematic diagram, is shown in Fig. 4: low temperature vehicle maintenance control logic schematic diagram.
Claims (6)
1. a speed motor train unit air conditioner control method that is applicable to psychro-environment, is characterized in that being completed by following steps:
(1) controller of air-conditioning system receives external temperature sensor signal, and environment temperature is identified, and if do not satisfied condition, is considered as common environmental condition, and air-conditioning system is carried out conventional control logic automatically;
(2) the environment mean temperature T recognizing when the external temperature sensor of vehicle air conditioner
outwardlower than setting value T
dtime, air-conditioning system proceeds to the control program of " psychro-environment-firing equipment operation control logic ";
(3) under the state of step (2), T
outward≤ S
1the temperature difference>=△ T of sudden change in time, air-conditioning system enters the program of " psychro-environment-low temperature vehicle maintenance control logic ";
(4) under the state of " psychro-environment-low temperature vehicle maintenance control logic ", if T
outward≤ T
f, preferentially start air-conditioning system anti-freezing pattern;
(5) in " psychro-environment-low temperature vehicle maintenance control logic " program operation process, during if any the order input of driver's manual-lock or vehicle cutting-off controlling device power supply, all EPs (end of program);
(6) " psychro-environment-low temperature vehicle maintenance control logic " program continuous service exceedes S
2after time period, air-conditioning system automatically switches to the program of step (1) and (2), and environment temperature is proceeded to identification.
2. control method according to claim 1, is characterized in that: under the state of step (2), driver inputs low temperature vehicle maintenance control signal, and air-conditioning system enters the program of " psychro-environment-low temperature vehicle maintenance control logic ".
3. control method according to claim 1, it is characterized in that under the pattern of " psychro-environment-firing equipment operation control logic ", air-conditioning system realizes in the following ways and adapts to ultralow environment temperature: porch place is provided with temperature sensor, is used for the temperature in FEEDBACK CONTROL porch region
Controller can judge according to this value of feedback, the start-stop time of control heater,
?" psychro-environment-firing equipment operation control logic " logically gives a kind of correction to the control point of porch temperature, to effectively improve by the temperature of platform in the time of low temperature environment;
Porch by platform control point set temperature value is: T
h=T
s+ △ T
hwherein, T
hfor psychro-environment control point set temperature value; T
sfor conventional environment control point desired temperature; △ T
hfor high and cold porch environment temperature control point correction value.
4. control method according to claim 1, it is characterized in that under the pattern of " psychro-environment-firing equipment operation control logic ", air-conditioning system realizes in the following ways and adapts to ultralow environment temperature: logically give a kind of correction to the feedback time of heater starting, to adapt to low temperature environment, the feedback identifying time S of definition heater starting
h: S
h=S
s+ △ S
hwherein, S
hfor psychro-environment air-conditioner controller allows the feedback time of identifying; S
sfor conventional environment control point feedback time; △ S
hfor psychro-environment temperature feedback time correction value.
5. control method according to claim 1, is characterized in that: " psychro-environment-low temperature vehicle maintenance control logic " pattern is the external environment mean temperature T when the identification of vehicle temperature sensor
outwardbe less than or equal to S
1when in time, the temperature difference of sudden change exceedes △ T, open, this pattern continues S
2after time, proceed to automatic control mode or psychro-environment control model, if occur during this period that environment temperature is dropped rapidly to anti-freezing pattern set point T
ftime, anti-freezing pattern preferentially starts, until driver's manual ringing is got involved or reached S running time
2after, proceed to automatic control mode or psychro-environment control model.
6. control method according to claim 1, is characterized in that: T
dfor-13 to-18 DEG C, S
1be 8 to 12 minutes, △ T is 30 to 40 DEG C, T
ffor-2 to 6 DEG C, S
2it is 4 to 6 hours.
Priority Applications (2)
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CN201410106088.5A CN103868201A (en) | 2014-03-21 | 2014-03-21 | High-speed motor train unit air conditioner control method suitable for high-cold environment |
PCT/CN2014/095734 WO2015139501A1 (en) | 2014-03-21 | 2014-12-31 | Method for air conditioning control of high-speed electrical multiple unit suitable for high and cold environment |
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CN201410106088.5A CN103868201A (en) | 2014-03-21 | 2014-03-21 | High-speed motor train unit air conditioner control method suitable for high-cold environment |
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WO (1) | WO2015139501A1 (en) |
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2014
- 2014-03-21 CN CN201410106088.5A patent/CN103868201A/en active Pending
- 2014-12-31 WO PCT/CN2014/095734 patent/WO2015139501A1/en active Application Filing
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Inventor after: Cao Yanhua Inventor after: Li Jun Inventor before: Li Jun Inventor before: Cao Yanhua |
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Application publication date: 20140618 |