CN112208300B - Automobile air conditioner frequency conversion control method - Google Patents
Automobile air conditioner frequency conversion control method Download PDFInfo
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- CN112208300B CN112208300B CN202011276806.5A CN202011276806A CN112208300B CN 112208300 B CN112208300 B CN 112208300B CN 202011276806 A CN202011276806 A CN 202011276806A CN 112208300 B CN112208300 B CN 112208300B
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- air conditioner
- current
- conditioner compressor
- compressor
- bus voltage
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3216—Control means therefor for improving a change in operation duty of a compressor in a vehicle
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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 variable frequency control method of an automobile air conditioner, which comprises the following steps: a1, reading the current air conditioner compressor rotation speed; a2, reading the current air conditioner compressor phase-line current; a3, reading the current battery bus voltage; a4, collecting the current environment temperature; a5, collecting the current illumination intensity; and A6, determining the adjusted rotating speed value of the air conditioner compressor according to the read current rotating speed of the air conditioner compressor, the phase line current of the air conditioner compressor, the battery bus voltage, the current environment temperature and the current illumination intensity. The invention adopts a linear combination mode, comprehensively incorporates various factors influencing the speed of the air conditioner compressor, optimizes the mechanism for adjusting the rotating speed of the air conditioner compressor and improves the operating efficiency of the air conditioner compressor.
Description
Technical Field
The invention relates to the technical field of automobile air conditioners, in particular to a variable frequency control method of an automobile air conditioner.
Background
Disclosure of Invention
The invention aims to provide a variable frequency control method for an automobile air conditioner.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a variable frequency control method for an automobile air conditioner comprises the following steps:
a1, reading the current air conditioner compressor rotation speed;
a2, reading the current air conditioner compressor phase-line current;
a3, reading the current battery bus voltage;
a4, collecting the current environment temperature;
a5, collecting the current illumination intensity;
and A6, determining the adjusted rotating speed value of the air conditioner compressor according to the read current rotating speed of the air conditioner compressor, the phase line current of the air conditioner compressor, the battery bus voltage, the current environment temperature and the current illumination intensity.
According to an embodiment of the present invention, the step a6 includes the steps of: determining the adjusted air conditioner compressor rotation speed according to the formula VX KT + K1T1-K3V-K4I + V0, wherein:
VX: the rotating speed of the air conditioner compressor is adjusted;
k: temperature coefficient of rotation, T: setting a difference value between the temperature and the current environment temperature;
k1: illumination intensity rotation rate coefficient, T1: setting a difference value between the illumination intensity and the current illumination intensity;
k3: bus voltage rotation speed coefficient, V: v ═ Vmax- (Vmax-Vmin) × 75%) -VcVc: current battery bus voltage, Vmax: maximum battery bus voltage, Vmin: a minimum battery bus voltage;
k4: phase current rotation rate coefficient, I: I-Ic-Imax 70%, Imax: maximum air conditioner compressor phase line current, Ic: current air conditioner compressor phase line current;
v0: the current air conditioner compressor speed.
According to the embodiment of the invention, when the phase line current of the air conditioner compressor is read to be less than 70% of the maximum value of the phase line current of the air conditioner compressor, K4I in the formula VX KT + K1T1-K3V-K4I + V0 is 0.
According to an embodiment of the present invention, when the read current battery bus voltage is greater than 70% of the maximum battery bus voltage, K3V in formula VX-KT + K1T1-K3V-K4I + V0 is 0.
According to an embodiment of the invention, KT ≦ (compressor maximum speed-V0) 20% is set.
According to an embodiment of the invention, K3V ≦ (compressor maximum speed-V0) 80%.
According to an embodiment of the invention, K4I ≦ (compressor maximum speed-V0) 50%.
According to the embodiment of the invention, the method further comprises the step A7: and inputting the adjusted rotating speed value of the air conditioner compressor into an air conditioner compressor driver.
The invention has the beneficial effects that: the invention adopts a linear combination mode, comprehensively incorporates various factors influencing the speed of the air conditioner compressor, optimizes the mechanism for adjusting the rotating speed of the air conditioner compressor and improves the operating efficiency of the air conditioner compressor.
Drawings
The advantages and realisation of the invention will be more apparent from the following detailed description, given by way of example, with reference to the accompanying drawings, which are given for the purpose of illustration only, and which are not to be construed in any way as limiting the invention, and in which:
FIG. 1 is a flow chart of a variable frequency control method of an automotive air conditioner according to the present invention;
FIG. 2 is a schematic view of a variable frequency control device of an automotive air conditioner according to the present invention;
FIG. 3 is a schematic diagram of the connection between the inverter control device of the automobile air conditioner and the air conditioner compressor according to the present invention.
Detailed Description
As shown in fig. 1, 2 and 3, the method for controlling the variable frequency of the automotive air conditioner comprises the following steps:
a1, reading the current air conditioner compressor rotation speed;
a2, reading the current air conditioner compressor phase-line current;
a3, reading the current battery bus voltage;
a4, collecting the current environment temperature;
a5, collecting the current illumination intensity;
and A6, determining the adjusted rotating speed value of the air conditioner compressor according to the read current rotating speed of the air conditioner compressor, the phase line current of the air conditioner compressor, the battery bus voltage, the current environment temperature and the current illumination intensity.
According to an embodiment of the present invention, step a6 includes the steps of: determining the adjusted air conditioner compressor rotation speed according to the formula VX KT + K1T1-K3V-K4I + V0, wherein:
VX: the rotating speed of the air conditioner compressor is adjusted;
k: temperature coefficient of rotation, T: setting a difference value between the temperature and the current environment temperature;
k1: illumination intensity rotation rate coefficient, T1: setting a difference value between the illumination intensity and the current illumination intensity;
k3: bus voltage rotation speed coefficient, V: v ═ Vmax- (Vmax-Vmin) × 75%) -VcVc: current battery bus voltage, Vmax: maximum battery bus voltage, Vmin: a minimum battery bus voltage;
k4: phase current rotation rate coefficient, I: I-Ic-Imax 70%, Imax: maximum air conditioner compressor phase line current, Ic: current air conditioner compressor phase line current;
v0: the current air conditioner compressor speed.
When the phase line current of the air conditioner compressor is read to be less than 70% of the maximum value of the phase line current of the air conditioner compressor, K4I in the formula VX KT + K1T1-K3V-K4I + V0 is 0.
When the read current battery bus voltage is greater than 70% of the maximum battery bus voltage, K3V in the formula VX-KT + K1T1-K3V-K4I + V0 is 0.
KT (compressor maximum speed-V0) is set to 20%.
K3V ≦ (compressor maximum speed-V0) 80%.
K4I ≦ (compressor maximum speed-V0) 50%.
The automobile air conditioner frequency conversion control method further comprises the following steps of A7: and inputting the adjusted rotating speed value of the air conditioner compressor into an air conditioner compressor driver.
According to the variable frequency control device of the automobile air conditioner, the MCU is used for inquiring and acquiring data, respective parameters such as voltage are defined according to actual use conditions, the highest voltage is 400V, when the voltage of a battery is detected to be larger than 300V, the voltage item of the designed variable frequency method is not considered, the speed is calculated according to a formula when the voltage is smaller than 300V, and voltage detection is realized by using resistance voltage division as other signals; the phase current is realized by converting a current signal into a voltage signal by adopting a resistor, amplifying the voltage signal by an operational amplifier and inputting the amplified voltage signal into the MCU; the temperature and sunlight sensor has a professional sensor to convert corresponding signals into electric signals.
As will be apparent to those skilled in the art, many modifications can be made to the invention without departing from the spirit and scope thereof, and it is intended that the present invention cover all modifications and equivalents of the embodiments of the invention covered by the appended claims.
Claims (7)
1. The method for controlling the frequency conversion of the automobile air conditioner is characterized by comprising the following steps of:
a1, reading the current air conditioner compressor rotation speed;
a2, reading the current air conditioner compressor phase-line current;
a3, reading the current battery bus voltage;
a4, collecting the current environment temperature;
a5, collecting the current illumination intensity;
a6, determining the adjusted air conditioner compressor rotating speed value according to the read current air conditioner compressor rotating speed, the air conditioner compressor phase line current, the battery bus voltage, the current environment temperature and the current illumination intensity, and determining the adjusted air conditioner compressor rotating speed according to a formula VX KT + K1T1-K3V-K4I + V0, wherein:
VX: the rotating speed of the air conditioner compressor is adjusted;
k: temperature coefficient of rotation, T: setting a difference value between the temperature and the current environment temperature;
k1: illumination intensity rotation rate coefficient, T1: setting a difference value between the illumination intensity and the current illumination intensity;
k3: bus voltage rotation speed coefficient, V: v ═ Vmax- (Vmax-Vmin) × 75%) -Vc: current battery bus voltage, Vmax: maximum battery bus voltage, Vmin: a minimum battery bus voltage;
k4: phase current rotation rate coefficient, I: I-Ic-Imax 70%, Imax: maximum air conditioner compressor phase line current, Ic: current air conditioner compressor phase line current;
v0: the current air conditioner compressor speed.
2. The variable frequency control method of the automobile air conditioner according to claim 1, characterized in that: when the phase line current of the air conditioner compressor is read to be less than 70% of the maximum value of the phase line current of the air conditioner compressor, K4I in the formula VX KT + K1T1-K3V-K4I + V0 is 0.
3. The variable frequency control method of the automobile air conditioner according to claim 2, characterized in that: when the read current battery bus voltage is greater than 70% of the maximum battery bus voltage, K3V in the formula VX-KT + K1T1-K3V-K4I + V0 is 0.
4. The variable frequency control method of the automobile air conditioner according to claim 3, characterized in that: KT (compressor maximum speed-V0) is set to 20%.
5. The variable frequency control method of the automobile air conditioner according to claim 4, characterized in that: K3V ≦ (compressor maximum speed-V0) 80%.
6. The variable frequency control method of the automobile air conditioner according to claim 5, characterized in that: K4I ≦ (compressor maximum speed-V0) 50%.
7. The variable frequency control method of the automobile air conditioner according to claim 6, characterized in that: further comprising step a 7: and inputting the adjusted rotating speed value of the air conditioner compressor into an air conditioner compressor driver.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011276806.5A CN112208300B (en) | 2020-11-16 | 2020-11-16 | Automobile air conditioner frequency conversion control method |
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| CN202011276806.5A CN112208300B (en) | 2020-11-16 | 2020-11-16 | Automobile air conditioner frequency conversion control method |
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| CN112208300B true CN112208300B (en) | 2022-02-08 |
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| JP2005344647A (en) * | 2004-06-04 | 2005-12-15 | Denso Corp | Drive control device of electric compressor for automobile |
| CN103940050A (en) * | 2014-05-13 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Control method and system of electric vehicle air-conditioning compressor |
| CN203926086U (en) * | 2014-03-04 | 2014-11-05 | 广州汽车集团股份有限公司 | The speed-regulating controller of a kind of automotive air-conditioning system and blower thereof |
| CN105034744A (en) * | 2014-04-16 | 2015-11-11 | 丰田自动车株式会社 | Vehicle and method for controlling vehicle |
| DE102014217005A1 (en) * | 2014-08-26 | 2016-03-03 | BSH Hausgeräte GmbH | Method for braking a compressor and compressors of a refrigerating appliance, air conditioner or a heat pump and refrigeration device, air conditioner or heat pump with it |
| CN107097607A (en) * | 2017-05-24 | 2017-08-29 | 苏州冷晨智能科技有限公司 | The Air Condition Compressor for Electric Vehicle system and its control method of temperature stabilization |
| CN107588503A (en) * | 2017-09-04 | 2018-01-16 | 青岛海尔空调器有限总公司 | For controlling method and device, the air-conditioning of air-conditioning |
| CN107621049A (en) * | 2017-09-04 | 2018-01-23 | 青岛海尔空调器有限总公司 | For controlling method and device, the air-conditioning of air-conditioning |
| CN108819657A (en) * | 2018-06-26 | 2018-11-16 | 上海加冷松芝汽车空调股份有限公司 | A kind of new-energy automobile refrigeration control method |
| CN110701828A (en) * | 2019-10-21 | 2020-01-17 | 广东美的暖通设备有限公司 | Control method and system of compressor, compressor assembly, air conditioner and storage medium |
-
2020
- 2020-11-16 CN CN202011276806.5A patent/CN112208300B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344647A (en) * | 2004-06-04 | 2005-12-15 | Denso Corp | Drive control device of electric compressor for automobile |
| CN203926086U (en) * | 2014-03-04 | 2014-11-05 | 广州汽车集团股份有限公司 | The speed-regulating controller of a kind of automotive air-conditioning system and blower thereof |
| CN105034744A (en) * | 2014-04-16 | 2015-11-11 | 丰田自动车株式会社 | Vehicle and method for controlling vehicle |
| CN103940050A (en) * | 2014-05-13 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Control method and system of electric vehicle air-conditioning compressor |
| DE102014217005A1 (en) * | 2014-08-26 | 2016-03-03 | BSH Hausgeräte GmbH | Method for braking a compressor and compressors of a refrigerating appliance, air conditioner or a heat pump and refrigeration device, air conditioner or heat pump with it |
| CN107097607A (en) * | 2017-05-24 | 2017-08-29 | 苏州冷晨智能科技有限公司 | The Air Condition Compressor for Electric Vehicle system and its control method of temperature stabilization |
| CN107588503A (en) * | 2017-09-04 | 2018-01-16 | 青岛海尔空调器有限总公司 | For controlling method and device, the air-conditioning of air-conditioning |
| CN107621049A (en) * | 2017-09-04 | 2018-01-23 | 青岛海尔空调器有限总公司 | For controlling method and device, the air-conditioning of air-conditioning |
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