CN104742684A - Method for controlling protecting temperature of vehicle air conditioning - Google Patents
Method for controlling protecting temperature of vehicle air conditioning Download PDFInfo
- Publication number
- CN104742684A CN104742684A CN201310749153.1A CN201310749153A CN104742684A CN 104742684 A CN104742684 A CN 104742684A CN 201310749153 A CN201310749153 A CN 201310749153A CN 104742684 A CN104742684 A CN 104742684A
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- blower
- air conditioner
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- effective
- temperature
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims 1
- 238000011217 control strategy Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a method and device for controlling the protecting temperature of a vehicle air conditioning. The method includes: calculating the effective gear of an air blower, and setting the protecting temperature of an air conditioning evaporator and an air conditioning electric heater based on the effective gear of the air blower.
Description
Technical Field
The invention relates to a control strategy of air conditioner protection temperature, in particular to a method for controlling the protection temperature of an automobile air conditioner.
Background
At present, the protection temperature of the evaporator and the electric heater of the automobile air conditioner is mostly set to be a fixed temperature. Here, the evaporator protection temperature means that when the temperature at the evaporator reaches this value, the risk of icing of the evaporator is high, and the operation of the compressor needs to be shut down to avoid icing; the protection temperature of the electric heater means that when the temperature of the electric heater reaches the value, the risk that the periphery or the body of the electric heater is damaged by heat is high, and in order to avoid the high-temperature heat damage, the electric heater is stopped to continue heating. Although the scheme protects the evaporator and the electric heater in temperature and reduces the probability of damage caused by temperature, the influence of the air speed and the vehicle speed of the air conditioner blower is not considered. As a result, the performance of the evaporator and the electric heater is not maximized, the effect of the evaporator and the electric heater is reduced, the air conditioning comfort in critical conditions is affected, and the life of the compressor is also affected indirectly by frequent turning on of the compressor and the life of the relay or the controller by frequent switching of the electric heater.
Disclosure of Invention
According to an object of the present invention, there is disclosed a method for controlling a protection temperature of an air conditioner for a vehicle, comprising the steps of: and calculating the effective gear of the air blower, and setting the protection temperature of the air conditioner evaporator and the air conditioner electric heater based on the effective gear of the air blower.
In one embodiment, when the position P of the air conditioner internal and external circulation air door is in internal circulation, the set gear S of the blower is set as the effective gear S of the blowerrAnd when the position P of the internal and external circulation air door of the air conditioner is in non-internal circulation, correcting the set gear S of the air blower according to the speed V of the vehicle and the position P of the internal and external circulation air door to obtain the effective gear S of the air blowerr。
In one embodiment, the speed is based on the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner evaporatoreEffective protection temperature T for air conditioner evaporatoreRAnd the temperature T is effectively protected by utilizing the air conditioner evaporatoreRAs the protection temperature of the air conditioner evaporator, wherein,
initial protection temperature T of air conditioner evaporatoreIs at the default gear S of the blowerdThe temperature at which evaporator frosting is measured by the test at the internal circulation.
In one embodiment, the speed is based on the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner electric heaterhEffective protection temperature T for air conditioner electric heaterhRAnd the temperature T is effectively protected by using the air-conditioning electric heaterhRAs the protection temperature of the electric heater of the air conditioner,
wherein, the initial protection temperature T of the air conditioner electric heaterhIs at the default gear S of the blowerdAnd the temperature of the electric heater at the over-temperature is measured through tests during the internal circulation.
In one embodiment, the gear S is set when the blower is activerGreater than the default gear S of the blowerdTime, effective protection temperature T of air conditioner evaporatoreR=Te - f1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdTime, effective protection temperature T of air conditioner evaporatoreR = Te+f2（Sd - Sr）。
In one embodiment, the gear S is set when the blower is activerGreater than the default gear S of the blowerdEffective protection temperature T of air conditioner electric heaterhR = Th + g1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdEffective protection temperature T of air conditioner electric heaterhR = Th - g2（Sd - Sr）。
According to an object of the present invention, there is disclosed an apparatus for controlling a protection temperature of an air conditioner for a vehicle, characterized by comprising:
a first unit for calculating the effective gear of the blower,
and the second unit is used for setting the protection temperatures of the air conditioner evaporator and the air conditioner electric heater based on the effective gear of the air blower.
In one embodiment, the first unit is configured to set the blower setting gear S to a blower active gear S when an inside and outside circulation damper position P of the air conditioner is in an inside circulationrAnd when the position P of the internal and external circulation air door of the air conditioner is in non-internal circulation, correcting the set gear S of the air blower according to the speed V of the vehicle and the position P of the internal and external circulation air door to obtain the effective gear S of the air blowerr。
In one embodiment, the second unit is configured to operate according to the blower effective gear SrAdjusting initial protection temperature T of air conditioner evaporatoreEffective protection temperature T for air conditioner evaporatoreRAnd the temperature T is effectively protected by utilizing the air conditioner evaporatoreRAs the protection temperature of the air conditioner evaporator, wherein,
initial protection temperature T of air conditioner evaporatoreIs at the default gear S of the blowerdThe temperature at which evaporator frosting is measured by the test at the internal circulation.
In one embodiment, the second unitIs configured to operate according to the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner electric heaterhEffective protection temperature T for air conditioner electric heaterhRAnd the temperature T is effectively protected by using the air-conditioning electric heaterhRAs the protection temperature of the electric heater of the air conditioner,
wherein, the initial protection temperature T of the air conditioner electric heaterhIs at the default gear S of the blowerdAnd the temperature of the electric heater at the over-temperature is measured through tests during the internal circulation.
In one embodiment, the gear S is set when the blower is activerGreater than the default gear S of the blowerdTime, effective protection temperature T of air conditioner evaporatoreR=Te - f1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdTime, effective protection temperature T of air conditioner evaporatoreR = Te+f2（Sd - Sr）。
In one embodiment, the gear S is set when the blower is activerGreater than the default gear S of the blowerdEffective protection temperature T of air conditioner electric heaterhR = Th + g1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdEffective protection temperature T of air conditioner electric heaterhR = Th - g2（Sd - Sr）。
The invention provides a control strategy for protecting the temperature of an air conditioner, which takes the speed of a vehicle, the air speed of a blower and the like into consideration, dynamically controls the protection temperature of an evaporator and an electric heater of the air conditioner, maximizes the performance of the evaporator and the electric heater of the air conditioner and improves the comfort of the automobile air conditioner.
Drawings
The various aspects of the present invention will become more apparent to those of ordinary skill in the art after reading the detailed description of the invention in light of the accompanying drawings. It should be understood by those skilled in the art that the drawings are designed solely for purposes of illustrating the subject technology in connection with the detailed description thereof and are not intended as a definition of the limits of the invention. Wherein,
fig. 1 is a schematic diagram of a method of controlling a protection temperature of an air conditioner of a vehicle according to an embodiment of the present invention.
Fig. 2 is a schematic view of an apparatus for controlling a protection temperature of an air conditioner for a vehicle according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. It may be evident, however, to one skilled in the art that one or more aspects of the various embodiments may be practiced with a lesser degree of these specific details. The following description is, therefore, not to be taken in a limiting sense, and the scope of protection is defined by the appended claims.
The data parameters required for the implementation of the invention include: setting gear (S) of the blower and effective gear (S) of the blowerr) Default gear of blower (S)d) Position (P) of an internal and external circulation air door of the air conditioner, vehicle speed (V), and initial protection temperature (T) of an evaporator of the air conditionere) Effective protection temperature (T) of air conditioner evaporatoreR) Initial protection temperature (T) of electric heater of air conditionerh) Effective protection temperature (T) of electric heater of air conditionerhR）。
When the air blower is closed, the gear number is 0, and the gear number is increased along with the increase of the air volume of the air blower.
Initial protection temperature (T) of air conditioner evaporatore) Is at the default gear of the blower (S)d) Evaporator with internal circulation measured by experimentTemperature at frost formation; initial protection temperature (T) of air conditioner electric heaterh) Is at the default gear of the blower (S)d) And the temperature of the electric heater at the over-temperature is measured through tests during the internal circulation.
When the position (P) of an internal and external circulation air door of the air conditioner is in internal circulation, the set gear (S) of the air blower is recorded as the effective gear (S) of the air blowerr) (ii) a When the position (P) of an internal and external circulation air door of the air conditioner is in non-internal circulation, the set gear (S) of the blower is corrected to be the effective gear (S) of the blower according to the vehicle speed (V) and the position (P) of the internal and external circulation air doorr). In one embodiment, Sr= S + P × V/50, where P is a percentage data, 0% is the inner cycle and 100% is the complete outer cycle.
When the blower is in effective gear (S)r) Minus the default gear of the blower (S)d) When the value of (A) is positive, the initial protection temperature T of the air conditioner evaporator is reducedeTo the effective protection temperature T of the air-conditioning evaporatoreR=Te-f1（Sr - Sd) Increasing the initial protection temperature T of the air-conditioning electric heaterhTo the effective protection temperature T of the electric heater of the air conditionerhR=Th+g1（Sr - Sd）。
When the blower is in effective gear (S)r) Minus the default gear of the blower (S)d) When the value of (A) is negative, the initial protection temperature T of the air conditioner evaporator is increasedeTo the effective protection temperature T of the air-conditioning evaporatoreR=Te+f2（Sd - Sr) Reducing the initial protection temperature T of the air-conditioning electric heaterhTo the effective protection temperature T of the electric heater of the air conditionerhR=Th-g2（Sd - Sr）。
Wherein f is1（），f2（），g1（），g2() Is an effective gear (S) with the blowerr) And a default gear of the blower (S)d) A function related to the difference. For example, f1（Sr - Sd）=（Sr - Sd) /2, the evaporator protection temperature TeR= Te +（Sr - Sd）/2。
Fig. 2 is a schematic view of an apparatus for controlling a protection temperature of an air conditioner for a vehicle according to an embodiment of the present invention. As shown in fig. 2, the apparatus for controlling a protection temperature of an air conditioner for a vehicle includes: the air conditioner comprises a first unit and a second unit, wherein the first unit is used for calculating an effective gear of an air blower, and the second unit is used for setting the protection temperature of an air conditioner evaporator and an air conditioner electric heater based on the effective gear of the air blower.
In one embodiment, the first unit is configured to set the blower setting gear S to a blower active gear S when an inside and outside circulation damper position P of the air conditioner is in an inside circulationrAnd when the position P of the internal and external circulation air door of the air conditioner is in non-internal circulation, correcting the set gear S of the air blower according to the speed V of the vehicle and the position P of the internal and external circulation air door to obtain the effective gear S of the air blowerr。
In one embodiment, the second unit is configured to operate according to the blower effective gear SrAdjusting initial protection temperature T of air conditioner evaporatoreEffective protection temperature T for air conditioner evaporatoreRAnd the temperature T is effectively protected by utilizing the air conditioner evaporatoreRAs the protection temperature of the air conditioner evaporator, wherein the initial protection temperature T of the air conditioner evaporatoreIs at the default gear S of the blowerdThe temperature at which evaporator frosting is measured by the test at the internal circulation.
In one embodiment, the second unit is configured to operate according to the blower effective gear SrAdjusting initial protection temperature T of air conditioner electric heaterhEffective protection temperature T for air conditioner electric heaterhRAnd the temperature T is effectively protected by using the air-conditioning electric heaterhRAs the protection temperature of the air-conditioning electric heater, wherein the initial protection temperature T of the air-conditioning electric heaterhIs at the default gear S of the blowerdAnd the temperature of the electric heater at the over-temperature is measured through tests during the internal circulation.
In one embodiment, whenEffective gear S of blowerrGreater than the default gear S of the blowerdTime, effective protection temperature T of air conditioner evaporatoreR=Te - f1（Sr - Sd) When the effective gear S of the blower is usedrLess than default gear S of blowerdTime, effective protection temperature T of air conditioner evaporatoreR = Te+f2（Sd - Sr）。
In one embodiment, the gear S is set when the blower is activerGreater than the default gear S of the blowerdEffective protection temperature T of air conditioner electric heaterhR = Th + g1（Sr - Sd) When the effective gear S of the blower is usedrLess than default gear S of blowerdEffective protection temperature T of air conditioner electric heaterhR = Th - g2（Sd - Sr）。
From the above description of the embodiments, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present invention without departing from the spirit and scope of the invention. Such modifications and substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (12)
1. A method of controlling a protection temperature of an automotive air conditioner, comprising the steps of:
calculating the effective gear of the blower,
and setting the protection temperatures of the air conditioner evaporator and the air conditioner electric heater based on the effective gear of the air blower.
2. The method of claim 1,
when the position P of the internal and external circulation air door of the air conditioner is in internal circulation, settingSetting gear S of blower as effective gear S of blowerrAnd when the position P of the internal and external circulation air door of the air conditioner is in non-internal circulation, correcting the set gear S of the air blower according to the speed V of the vehicle and the position P of the internal and external circulation air door to obtain the effective gear S of the air blowerr。
3. The method of claim 2,
according to the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner evaporatoreEffective protection temperature T for air conditioner evaporatoreRAnd the temperature T is effectively protected by utilizing the air conditioner evaporatoreRAs the protection temperature of the air conditioner evaporator, wherein,
initial protection temperature T of air conditioner evaporatoreIs at the default gear S of the blowerdThe temperature at which evaporator frosting is measured by the test at the internal circulation.
4. The method of claim 2,
according to the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner electric heaterhEffective protection temperature T for air conditioner electric heaterhRAnd the temperature T is effectively protected by using the air-conditioning electric heaterhRAs the protection temperature of the electric heater of the air conditioner,
wherein, the initial protection temperature T of the air conditioner electric heaterhIs at the default gear S of the blowerdAnd the temperature of the electric heater at the over-temperature is measured through tests during the internal circulation.
5. The method of claim 3,
when the blower is in effective gear SrGreater than the default gear S of the blowerdTime, effective protection temperature T of air conditioner evaporatoreR=Te - f1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdTime, effective protection temperature T of air conditioner evaporatoreR = Te+f2（Sd - Sr）。
6. The method of claim 4,
when the blower is in effective gear SrGreater than the default gear S of the blowerdEffective protection temperature T of air conditioner electric heaterhR = Th + g1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdEffective protection temperature T of air conditioner electric heaterhR = Th - g2（Sd - Sr）。
7. An apparatus for controlling a protection temperature of an air conditioner for a vehicle, comprising:
a first unit for calculating the effective gear of the blower,
and the second unit is used for setting the protection temperatures of the air conditioner evaporator and the air conditioner electric heater based on the effective gear of the air blower.
8. The method of claim 7,
the first unit is configured to set a blower setting position S to a blower effective position S when an inside and outside circulation damper position P of the air conditioner is in an inside circulationrAnd when the position P of the internal and external circulation air door of the air conditioner is in non-internal circulation, correcting the set gear S of the air blower according to the speed V of the vehicle and the position P of the internal and external circulation air door to obtain the effective gear S of the air blowerr。
9. The apparatus of claim 8,
the second unit is configured to operate according to the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner evaporatoreEffective protection temperature T for air conditioner evaporatoreRAnd the temperature T is effectively protected by utilizing the air conditioner evaporatoreRAsThe air conditioning evaporator protects the temperature of the air conditioning evaporator, wherein,
initial protection temperature T of air conditioner evaporatoreIs at the default gear S of the blowerdThe temperature at which evaporator frosting is measured by the test at the internal circulation.
10. The method of claim 8,
the second unit is configured to operate according to the effective shift S of the blowerrAdjusting initial protection temperature T of air conditioner electric heaterhEffective protection temperature T for air conditioner electric heaterhRAnd the temperature T is effectively protected by using the air-conditioning electric heaterhRAs the protection temperature of the electric heater of the air conditioner,
wherein, the initial protection temperature T of the air conditioner electric heaterhIs at the default gear S of the blowerdAnd the temperature of the electric heater at the over-temperature is measured through tests during the internal circulation.
11. The method of claim 9,
when the blower is in effective gear SrGreater than the default gear S of the blowerdTime, effective protection temperature T of air conditioner evaporatoreR=Te - f1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdTime, effective protection temperature T of air conditioner evaporatoreR = Te+f2（Sd - Sr）。
12. The apparatus of claim 10,
when the blower is in effective gear SrGreater than the default gear S of the blowerdEffective protection temperature T of air conditioner electric heaterhR = Th + g1（Sr - Sd），
When the blower is in effective gear SrLess than default gear S of blowerdThe electric heater of the air conditioner hasEffective protective temperature ThR = Th - g2（Sd - Sr）。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749153.1A CN104742684B (en) | 2013-12-31 | 2013-12-31 | A kind of method controlling air conditioning for automobiles to protect temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749153.1A CN104742684B (en) | 2013-12-31 | 2013-12-31 | A kind of method controlling air conditioning for automobiles to protect temperature |
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| CN104742684A true CN104742684A (en) | 2015-07-01 |
| CN104742684B CN104742684B (en) | 2017-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579262A (en) * | 2020-04-29 | 2020-08-25 | 中国第一汽车股份有限公司 | Method for determining protection temperature of fixed-displacement compressor evaporator of passenger car |
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|---|---|---|---|---|
| EP0021353B1 (en) * | 1979-06-22 | 1983-09-21 | Nippondenso Co., Ltd. | Air conditioner control method and apparatus |
| CN102085788A (en) * | 2009-12-03 | 2011-06-08 | 现代自动车株式会社 | Air conditioning system for electric vehicle and method for controlling the same |
| CN202229355U (en) * | 2011-08-09 | 2012-05-23 | 上海加冷松芝汽车空调股份有限公司 | Controller of automobile air conditioner |
| JP2013049324A (en) * | 2011-08-30 | 2013-03-14 | Honda Motor Co Ltd | Control device of hybrid vehicle and control method |
| JP5310875B2 (en) * | 2010-01-25 | 2013-10-09 | トヨタ自動車株式会社 | Electric drive vehicle |
-
2013
- 2013-12-31 CN CN201310749153.1A patent/CN104742684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021353B1 (en) * | 1979-06-22 | 1983-09-21 | Nippondenso Co., Ltd. | Air conditioner control method and apparatus |
| CN102085788A (en) * | 2009-12-03 | 2011-06-08 | 现代自动车株式会社 | Air conditioning system for electric vehicle and method for controlling the same |
| JP5310875B2 (en) * | 2010-01-25 | 2013-10-09 | トヨタ自動車株式会社 | Electric drive vehicle |
| CN202229355U (en) * | 2011-08-09 | 2012-05-23 | 上海加冷松芝汽车空调股份有限公司 | Controller of automobile air conditioner |
| JP2013049324A (en) * | 2011-08-30 | 2013-03-14 | Honda Motor Co Ltd | Control device of hybrid vehicle and control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579262A (en) * | 2020-04-29 | 2020-08-25 | 中国第一汽车股份有限公司 | Method for determining protection temperature of fixed-displacement compressor evaporator of passenger car |
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