CN108005881B - A kind of speed regulating method of motor compressor - Google Patents
A kind of speed regulating method of motor compressor Download PDFInfo
- Publication number
- CN108005881B CN108005881B CN201711243425.5A CN201711243425A CN108005881B CN 108005881 B CN108005881 B CN 108005881B CN 201711243425 A CN201711243425 A CN 201711243425A CN 108005881 B CN108005881 B CN 108005881B
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- Prior art keywords
- speed
- value
- motor compressor
- difference
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The present invention is suitable for automobile air conditioning technology field, provides a kind of speed regulating method of motor compressor, this method comprises the following steps: driving motor compressor, evaporating temperature sensor timing acquiring vehicle interior temperature value；The difference △ T1 of evaporator temperature sensor collected temperature value and target temperature value is calculated, the compensating rotational speed section where △ T1 is obtained；Read the corresponding speed considerations value in compensation section；The difference △ T2 of collected temperature value and last time collected temperature value, is modified speed considerations value based on △ T2 before calculating；The revolving speed of motor compressor is controlled based on revised speed considerations value.The embodiment of the present invention sets the adjustment speed in different compensation sections based on compensation section, adjustment speed is gradually reduced with the decline of compensation interval value, the case where can preventing revolving speed mutation on the whole, in compensation section, the adjustment speed in the compensation section is finely adjusted based on temperature fall, to guarantee that temperature plateau declines as far as possible.
Description
Technical field
The invention belongs to automobile air conditioning technology fields, provide a kind of speed regulating method of motor compressor.
Background technique
The revolving speed of existing motor compressor is typically carried out according to the collected temperature value of evaporator temperature sensor
It adjusts, evaporator temperature and compressor rotary speed are in one-to-one relationship, and evaporator temperature is higher, and revolving speed is higher, evaporator
Temperature is lower, and revolving speed is lower；Using this control mode, the case where being easy to appear revolving speed mutation, and in the environment of different humidity,
Motor compressor revolving speed required for identical evaporator temperature is different, and therefore, the evaporator temperature and compressor of foundation turn
Fast corresponding relationship is not well positioned to meet the demand of operating condition.
Summary of the invention
The embodiment of the present invention provides a kind of speed regulating method of motor compressor, and this method solve traditional motor compressors to turn
Velocity modulation prosecutor method is easy to appear the problem of revolving speed mutation.
The invention is realized in this way a kind of speed regulating method of motor compressor, this method comprises the following steps:
S1, driving motor compressor, evaporating temperature sensor timing acquiring vehicle interior temperature value；
S2, the difference △ T1 for calculating evaporator temperature sensor collected temperature value and target temperature value obtain difference
Compensating rotational speed section where △ T1；
S3, the corresponding speed considerations value in compensation section, corresponding turn of the compensation section set based on experimental data are read
Fast offset；
The difference △ T2 of collected temperature value and last time collected temperature value before S4, calculating is based on difference △ T2 couple
Speed considerations value is modified；
S5, the revolving speed that motor compressor is controlled based on revised speed considerations value.
Further, the step S4 specifically comprises the following steps:
S41, the difference △ T3 for calculating △ T2 ' and △ T2, wherein △ T2 ' is that collected temperature value of upper last time was adopted with last time
The difference collected；
If S42, △ T3, which are greater than, allows positively biased difference, speed considerations value is just being compensated, if △ T3, which is less than, to be allowed to bear
Deviation then carries out negative compensation to speed considerations value, when △ T3 be located at allowed minus deviation value and allow positively biased difference between, then not
Speed considerations value is compensated.
Further, include the following steps: before the step S1
S6, when motor compressor just starts power up, the initial speed of motor compressor is calculated based on difference △ T1；
If S7, the initial speed value calculated are greater than the maximum (top) speed value of motor compressor, motor compressor is controlled with most
Big tachometer value starting, if the initial speed value calculated is less than the minimum speed value of motor compressor, control motor compressor with
Minimum rotation, if the initial speed value calculated is located at most to descend between tachometer value and maximum (top) speed value, controls electronic pressure to starting
Initial speed value starting of the contracting machine to calculate.
Further, the sampling time interval of the evaporating temperature sensor with speed considerations interval value reduction gradually
Successively decrease.
Further, the interval in the velocity compensation section is placed equidistant with, or with the reduction of difference △ T1
Gradually successively decrease.
Further, the revolving speed of motor compressor be the current revolving speed of motor compressor and revised speed considerations value it
With.
The embodiment of the present invention sets the adjustment speed in different compensation sections based on compensation section, and adjustment speed is with compensating basin
Between the decline that is worth the case where being gradually reduced, revolving speed mutation can be prevented on the whole, in compensation section, the range of decrease at a temperature of being based on
Degree is finely adjusted the adjustment speed in the compensation section, and to guarantee that temperature plateau declines as far as possible, it is prominent to further reduce revolving speed
The appearance of change, in addition, the embodiment of the present invention is regulated and controled based on the temperature difference and temperature difference fluctuating range, i.e., by temperature and humidity to turning
The influence of speed all accounts for, and can more meet the needs of various operating conditions.
Detailed description of the invention
Fig. 1 is the flow diagram of the speed regulating method of motor compressor provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the flow diagram of the speed regulating method of motor compressor provided in an embodiment of the present invention, and this method includes such as
Lower step:
S1, motor compressor, temperature value in evaporating temperature sensor collecting vehicle are driven；
Evaporator temperature sensor described in the embodiment of the present invention refers to the temperature sensor on evaporator.
S2, the difference △ T1 for calculating evaporator temperature sensor collected temperature value and target temperature value obtain difference
Compensation section where △ T1；
The target temperature value is preset temperature value, can be the preset value of default, and such as 24 degree or user is according to individual
Demand and the preset value that sets.
S3, the corresponding speed considerations value in compensation section, corresponding turn of the compensation section set based on experimental data are read
Fast offset；
In embodiments of the present invention, there are one-to-one relationships with speed considerations value in compensation section, and the compensation section
Interval can be equidistant, or gradually successively decrease, in the car temperature value and when target temperature value big compared with deviation,
The interval for compensating section is big, and with the reduction of deviation, the section for compensating section is gradually successively decreased, in addition, evaporating temperature passes
The sampling time interval of sensor is as (speed considerations interval value can be understood as the whole number in speed considerations section to compensation interval value
Value or mean values) reduction gradually successively decrease.
The difference △ T2 of collected temperature value and last time collected temperature value before S4, calculating is based on difference △ T2 couple
Speed considerations value is modified；
In embodiments of the present invention, step S4 specifically comprises the following steps:
S41, the difference △ T3 for calculating △ T2 ' and △ T2, wherein △ T2 ' is that collected temperature value of upper last time was adopted with last time
The difference collected,
If S42, △ T3, which are greater than, allows positively biased difference, speed considerations value is just being compensated, if △ T3, which is less than, to be allowed to bear
Deviation then carries out negative compensation to speed considerations value, when △ T3 be located at allowed minus deviation value and allow positively biased difference between, then not
Speed considerations value is compensated.
S5, the revolving speed that motor compressor is controlled based on revised speed considerations value.
In embodiments of the present invention, the revolving speed of motor compressor should be the current revolving speed of motor compressor with it is revised
The sum of speed considerations value.
Further include following steps before step S1:
S6, when motor compressor just starts power up, the initial speed of motor compressor is calculated based on difference △ T1；
In embodiments of the present invention, it is existing for being somebody's turn to do " calculating the initial speed of motor compressor based on difference △ T1 " and use
Some calculation methods.
If S7, the initial speed value calculated are greater than the maximum (top) speed value of motor compressor, motor compressor is controlled with most
Big tachometer value starting, if the initial speed value calculated is less than the minimum speed value of motor compressor, control motor compressor with
Minimum rotation, if the initial speed value calculated is located at most to descend between tachometer value and maximum (top) speed value, controls electronic pressure to starting
Initial speed value starting of the contracting machine to calculate.
The embodiment of the present invention sets the adjustment speed in different compensation sections based on compensation section, and adjustment speed is with compensating basin
Between the decline that is worth the case where being gradually reduced, revolving speed mutation can be prevented on the whole, in compensation section, the range of decrease at a temperature of being based on
Degree is finely adjusted the adjustment speed in the compensation section, and to guarantee that temperature plateau declines as far as possible, it is prominent to further reduce revolving speed
The appearance of change, in addition, the embodiment of the present invention is regulated and controled based on the temperature difference and temperature difference fluctuating range, i.e., by temperature and humidity to turning
The influence of speed all accounts for, and can more meet the needs of various operating conditions.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of speed regulating method of motor compressor, which is characterized in that described method includes following steps:
S1, driving motor compressor, evaporator temperature sensor timing acquiring vehicle interior temperature value；
S2, the difference △ T1 for calculating evaporator temperature sensor collected temperature value and target temperature value obtain difference △ T1
The compensating rotational speed section at place；
S3, the corresponding speed considerations value in compensating rotational speed section is read, it is corresponding that compensating rotational speed section is set based on experimental data
Speed considerations value；
S4, the difference △ T2 for calculating current collected temperature value and last time collected temperature value, based on difference △ T2 to turn
Fast offset is modified；
S5, the revolving speed that motor compressor is controlled based on revised speed considerations value:
The step S4 specifically comprises the following steps:
S41, the difference △ T3 for calculating △ T2 ' and △ T2, wherein △ T2 ' is that collected temperature value of upper last time was collected with last time
Difference；
If S42, △ T3, which are greater than, allows positively biased difference, speed considerations value is just being compensated, if △ T3 is less than allowed minus deviation
Value, then negative compensation is carried out to speed considerations value, when △ T3 be located at allowed minus deviation value and allow positively biased difference between, then not to turn
Fast offset compensates.
2. the speed regulating method of motor compressor as described in claim 1, which is characterized in that including as follows before the step S1
Step:
S6, when motor compressor just starts power up, the initial speed value of motor compressor is calculated based on difference △ T1；
If S7, the initial speed value calculated are greater than the maximum (top) speed value of motor compressor, control motor compressor and turned with maximum
Speed value starting controls motor compressor if the initial speed value calculated is less than the minimum speed value of motor compressor with minimum
Tachometer value starting, if the initial speed value calculated controls motor compressor between minimum speed value and maximum (top) speed value
Started with the initial speed value of calculating.
3. the speed regulating method of motor compressor as claimed in claim 2, which is characterized in that the evaporator temperature sensor is adopted
Sample time interval is gradually successively decreased with the reduction of compensating rotational speed interval value.
4. the speed regulating method of motor compressor as claimed in claim 2, which is characterized in that between the section in the compensating rotational speed section
It is divided into and is placed equidistant with, or gradually successively decrease with the reduction of difference △ T1.
5. the speed regulating method of motor compressor as described in claim 1, which is characterized in that the revolving speed of motor compressor is electronic pressure
The sum of the current revolving speed of contracting machine and revised speed considerations value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243425.5A CN108005881B (en) | 2017-11-30 | 2017-11-30 | A kind of speed regulating method of motor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243425.5A CN108005881B (en) | 2017-11-30 | 2017-11-30 | A kind of speed regulating method of motor compressor |
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| Publication Number | Publication Date |
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| CN108005881A CN108005881A (en) | 2018-05-08 |
| CN108005881B true CN108005881B (en) | 2019-09-17 |
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| CN201711243425.5A Active CN108005881B (en) | 2017-11-30 | 2017-11-30 | A kind of speed regulating method of motor compressor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819657B (en) * | 2018-06-26 | 2020-08-18 | 上海加冷松芝汽车空调股份有限公司 | New energy automobile refrigeration control method |
| CN113002272A (en) * | 2019-12-20 | 2021-06-22 | 北京宝沃汽车股份有限公司 | Vehicle-mounted air conditioner compressor rotation speed control method and device, vehicle-mounted air conditioner and vehicle |
| CN112160900A (en) * | 2020-08-31 | 2021-01-01 | 上汽通用五菱汽车股份有限公司 | Compressor speed regulation method, system, equipment and storage medium |
| CN112519531A (en) * | 2020-11-30 | 2021-03-19 | 奇瑞商用车（安徽）有限公司 | VCU control-based compressor rotating speed control method |
| CN116533771A (en) * | 2023-06-26 | 2023-08-04 | 广州汽车集团股份有限公司 | Vehicle control method and device, vehicle and storage medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6262158A (en) * | 1985-09-11 | 1987-03-18 | 三洋電機株式会社 | Controller for refrigerator |
| US4734628A (en) * | 1986-12-01 | 1988-03-29 | Carrier Corporation | Electrically commutated, variable speed compressor control system |
| JPS63143450A (en) * | 1986-12-03 | 1988-06-15 | Hitachi Ltd | Method of controlling rotational speed of air conditioner |
| CN103147968B (en) * | 2013-03-18 | 2015-12-23 | 安徽江淮汽车股份有限公司 | Based on pure electric automobile air conditioning compressor control method and the system of fuzzy control |
| CN103940050B (en) * | 2014-05-13 | 2016-06-01 | 安徽江淮汽车股份有限公司 | The control method of electric automobile air conditioner compressor and system |
| CN104864563B (en) * | 2015-05-11 | 2017-10-13 | 广东美的制冷设备有限公司 | The control method and control device of air conditioner |
| CN106368939B (en) * | 2016-08-30 | 2017-09-12 | 东风柳州汽车有限公司 | Motor compressor for vehicle air conditioner method for controlling number of revolution |
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