CN112537182B - Control method for ECO mode of air conditioner of electric vehicle - Google Patents
Control method for ECO mode of air conditioner of electric vehicle Download PDFInfo
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- CN112537182B CN112537182B CN202011456796.3A CN202011456796A CN112537182B CN 112537182 B CN112537182 B CN 112537182B CN 202011456796 A CN202011456796 A CN 202011456796A CN 112537182 B CN112537182 B CN 112537182B
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- 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
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- 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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- 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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention discloses a control method of an ECO mode of an electric vehicle air conditioner, belonging to the technical field of energy conservation of the electric vehicle air conditioner, comprising the following steps: when a user operates an ECO key and a key indicator lamp is lightened, the air conditioner enters an ECO mode; step two: judging whether the temperature setting is LO or HI, if so, exiting the ECO mode, and if not, performing the third step; step three: judging whether the temperature setting is a cold end, if so, driving an internal and external circulation motor to an internal circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, entering the fourth step; step four: judging whether the temperature setting is a hot end, if so, driving an internal and external circulation motor to an external circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, executing the operation of the fifth step; step five: and D, judging whether the temperature setting is natural wind, if so, keeping the current state of the internal and external circulation motor, and if not, executing the operation of the step two. The control method realizes energy conservation and consumption reduction by adjusting the control strategy of the air conditioner and reducing the control target.
Description
Technical Field
The invention belongs to the technical field of energy conservation of an electric vehicle air conditioner, and particularly relates to a control method of an ECO mode of the electric vehicle air conditioner.
Background
The energy conservation and consumption reduction of the electric vehicle and the improvement of the endurance mileage are always the subjects of research of people. Starting from the air conditioning technology, the control of the ECO mode of the air conditioner is realized through the ECO mode of the whole vehicle, and the power is reduced.
In the prior air conditioner technology, a general energy-saving scheme is to change the system principle and realize the energy saving of the air conditioner by using a heat pump system, and the system has no obvious effect under two extreme working conditions of high temperature and low temperature.
Disclosure of Invention
Aiming at the problems that the existing system in the prior art has unobvious effects under two extreme working conditions of high temperature and low temperature, the invention provides a control method of an ECO mode of an air conditioner of an electric vehicle.
The invention is realized by the following technical scheme:
a control method for an ECO mode of an electric vehicle air conditioner comprises the following specific steps:
the method comprises the following steps: when a user operates an ECO key and a key indicator lamp is lightened, the air conditioner enters an ECO mode;
step two: judging whether the temperature setting is LO or HI, if so, exiting the ECO mode, and if not, performing the third step;
step three: judging whether the temperature setting is a cold end, if so, driving an internal and external circulation motor to an internal circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, entering the fourth step;
step four: judging whether the temperature setting is a hot end, if so, driving an internal and external circulation motor to an external circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, executing the operation of the fifth step;
step five: and D, judging whether the temperature setting is natural wind, if so, keeping the current state of the internal and external circulation motor, and if not, executing the operation of the step two.
Preferably, the LO in step two refers to the lowest temperature set by the user, the HI refers to the highest temperature set by the user, and when the two temperature values are entered, the user needs the air conditioning system to provide the cooling or heating function by default, so that the user is not suitable to enter the ECO mode at the temperature.
Preferably, the cold end is in a feedback voltage range of 0.98V-2.4V of the temperature motor, the hot end is in a feedback voltage range of 2.57V-4V of the temperature motor, and the natural wind is in a feedback voltage range of 2.4V-2.57V of the temperature motor.
Preferably, the control target temperature is determined by the lookup table for control, specifically, the lookup table is used for monitoring the outlet air temperature and the respiratory point temperature at different control temperatures according to the real vehicle performance, dividing the grade of the target temperature, and realizing the step change of the temperature.
Preferably, 50% of the internal circulation is also mixed into the external circulation described in step four.
Compared with the prior art, the invention has the following advantages:
the control method of the ECO mode of the air conditioner of the electric vehicle can properly reduce the control target according to the requirements of users so as to achieve the effect of reducing consumption.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic flow chart of a method for controlling an ECO mode of an air conditioner of an electric vehicle according to the present invention.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Example 1
A control method of an ECO mode of an electric vehicle air conditioner comprises the following specific steps:
the method comprises the following steps: when a user operates an ECO key and a key indicator lamp is lightened, the air conditioner enters an ECO mode;
step two: judging whether the temperature setting is LO or HI, if so, exiting the ECO mode, and if not, performing the third step;
step three: judging whether the temperature setting is a cold end, if so, driving an internal and external circulation motor to an internal circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, entering the fourth step;
step four: judging whether the temperature setting is a hot end, if so, driving an internal and external circulation motor to an external circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, executing the operation of the fifth step;
step five: and D, judging whether the temperature setting is natural wind, if so, keeping the current state of the internal and external circulation motor, and if not, executing the operation of the step two.
The LO in the second step is the lowest temperature set by the user, the HI is the highest temperature set by the user, and when the two temperature values are entered, the user needs the air conditioning system to provide the cooling or heating function by default, so that the user is not suitable to enter the ECO mode at the temperature.
The cold end is in a temperature motor feedback voltage range of 0.98V-2.4V, the hot end is in a temperature motor feedback voltage range of 2.57V-4V, and the natural wind is in a temperature motor feedback voltage range of 2.4V-2.57V.
And step four, 50% of internal circulation is mixed into the external circulation, through a real vehicle calibration test, under different low-temperature environments and different vehicle speeds, the passenger compartment (4 persons) starts an air conditioner to heat, the air-mixing internal circulation is n%, a foot blowing mode is adopted, the humidity in the passenger compartment is monitored constantly, the humidity value is not more than 50%, the air-mixing internal circulation is finally determined to be 50%, the indoor humidity is not over-standard, and the glass is not fogged.
And specifically, the table lookup is to monitor the outlet air temperature and the breathing point temperature at different control temperatures according to the real vehicle performance, and to divide the grade of the target temperature to realize the stepped change of the temperature.
The whole air conditioner temperature range which can be operated by a user is subdivided into a refrigerating end, a natural wind end and a heating end, the optimum target temperature is confirmed on each temperature gear through real vehicle calibration according to different temperature settings of the user, and the requirements of the user under different working conditions (a Normal mode and an ECO mode) are met. After entering the ECO mode, the subdivided temperature regulation can be realized by regulating the temperature gear.
As shown in fig. 1, in the heating working condition in winter, in order to increase the endurance mileage and reduce the energy consumption of the air conditioner, the following operations can be performed:
the method comprises the following steps: setting the temperature to 4 grades of heating ends;
1. pressing an ECO key, and enabling the air conditioner to enter an ECO mode at the moment;
2. the controller judges whether the temperature setting position of the air conditioner panel is LO or HI, namely not LO and HI;
3. the controller judges whether the temperature setting is a cold end-a non-cold end;
4. the controller executes and judges whether the temperature setting is hot end-hot end;
5. the controller drives the internal and external circulation motor to drive the feedback voltage to be (2.5 +/-0.07) V, the position of the motor is the middle position at the moment, the indicator light displays the external circulation, and the external circulation is actually 50% internal circulation of external circulation mixed air;
6. the controller drives the PTC to work, and controls the output power of the PTC to ensure that the target water temperature is 45 ℃ (obtained by table lookup);
the target temperature is properly reduced through an ECO mode, the high-voltage output power is reduced, the air inlet temperature is improved through the mixed air compensation of internal and external circulation, and the high-voltage output power is reduced again. Thereby achieving air conditioning control in the ECO mode.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (4)
1. The control method of the ECO mode of the air conditioner of the electric vehicle is characterized by comprising the following specific steps of:
the method comprises the following steps: when a user operates an ECO key and a key indicator lamp is lightened, the air conditioner enters an ECO mode;
step two: judging whether the temperature setting is LO or HI, if so, exiting the ECO mode, and if not, performing the third step;
step three: judging whether the temperature setting is a cold end, if so, driving an internal and external circulation motor to an internal circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, entering the fourth step;
step four: judging whether the temperature setting is a hot end, if so, driving an internal and external circulation motor to an external circulation by the air conditioner, looking up a table to determine a control target temperature for control; if not, executing the operation of the fifth step;
step five: judging whether the temperature setting is natural wind, if so, keeping the internal and external circulation motor in the current state, and if not, executing the operation of the second step;
the table lookup determines a control target temperature for control, and specifically, the table lookup monitors the outlet air temperature and the respiratory point temperature at different control temperatures according to the real vehicle performance, divides the grade of the target temperature, and realizes the step change of the temperature.
2. The method as claimed in claim 1, wherein the LO in step two is the lowest temperature set by the user, the HI is the highest temperature set by the user, and when entering these two temperature values, the user needs the air conditioning system to provide cooling or heating function by default, therefore, at this temperature, it is not suitable to enter into the ECO mode.
3. The ECO mode control method for air conditioners of electric vehicles according to claim 1, wherein the cold end condition is a feedback voltage range of the temperature motor of 0.98V to 2.4V, the hot end condition is a feedback voltage range of the temperature motor of 2.57V to 4V, and the natural wind condition is a feedback voltage range of the temperature motor of 2.4V to 2.57V.
4. The method as claimed in claim 1, wherein the external cycle of step four further comprises 50% of an internal cycle.
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| CN202011456796.3A CN112537182B (en) | 2020-12-11 | 2020-12-11 | Control method for ECO mode of air conditioner of electric vehicle |
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