CN104806501B - automobile air conditioner compressor torque control method and device - Google Patents
automobile air conditioner compressor torque control method and device Download PDFInfo
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- CN104806501B CN104806501B CN201510227053.1A CN201510227053A CN104806501B CN 104806501 B CN104806501 B CN 104806501B CN 201510227053 A CN201510227053 A CN 201510227053A CN 104806501 B CN104806501 B CN 104806501B
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Abstract
The invention discloses a kind of automobile air conditioner compressor torque control method and device, it obtains compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals, compressor torque is determined with this, try to achieve the difference between compressor torque and compensation settings sum, determine compressor torque changing value, relatively compressor torque changing value and compressor torque setting value, so that it is determined that automobile engine output moment of torsion and rotating speed. By the method for the present invention and device, moment of torsion and rotating speed that automobile engine can export according to the adjustment of load of compressor can be made, it is to avoid start rotary speed unstabilization, the problem that car load vibration is bigger, improve driver and crew's comfortableness and safety.
Description
Technical field
The invention belongs to air conditioning for automobiles control field, particularly a kind of automobile air conditioner compressor torque control method and device.
Background technology
Automotive air-conditioning system includes compressor, condenser, expansion valve, evaporator core, air-conditioner controller, air-conditioning duct etc. After the engine started, open air-conditioning (opening A/C switch), sensor temperature on evaporator core is judged by Air-Conditioning Control Panel, when temperature meets the requirements, A/C request signal is passed to ECU, air conditioning system pressure signal and other situations of car load are judged by ECU, are confirmed whether to start compressor of air conditioner, whether start radiator fan. After meeting above-mentioned requirements, start compressor, after compressor start, coolant (coolant that current automobile uses is R134a) is compressed into high temperature and high pressure gas, high temperature and high pressure gas is by pipeline stream to condenser, carry out heat radiation by condenser and become high-temp liquid, high-temp liquid is become gas-liquid mixture phase by pipeline through the throttling action of expansion valve by liquid, gas liquid mixture absorbs the atmospheric heat by vaporizer, coolant becomes low temperature low pressure gas, and this gas returns to compressor through pipeline and circulates next time. Compressor of air conditioner is after unlatching, electromotor provides the compensation of certain rotating speed n on the basis of Experimental Calibration, but owing to the compressor load caused to electromotor in varied situations is different, rotary speed unstabilization is started thus causing, car load vibration is relatively big, and then have impact on the comfortableness of driver and crew and the safety of driving.
Summary of the invention
The technical problem to be solved is to provide a kind of automobile air conditioner compressor torque control method avoiding rotating speed of automobile engine to fluctuate and device.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of automobile air conditioner compressor torque control method, comprises the steps:
Obtain compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals;
According to described compressor rotary speed, air conditioning system pressure, compressor aperture, it is determined that compressor torque;
Determine compressor torque changing value, this compressor torque changing value=rear first compression machine moment of torsion-front first compression machine moment of torsion+compensation settings, wherein, compensation settings is 0 first, and later compensation settings is a upper compensation settings and the compressor torque changing value sum tried to achieve;
Relatively compressor torque changing value and compressor torque setting value, if compressor torque changing value is more than compressor torque setting value, then when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, it is transformed to and exports corresponding dynamic torque according to rear first compression machine moment of torsion, and adjust rotating speed.
Preferably, described compressor rotary speed calculates according to rotating ratio and the rotating speed of automobile engine of automobile engine driving wheel and compressor belt wheel.
Preferably, described rotating speed of automobile engine obtains by reading the engine speed data on ECU.
Preferably, described air conditioning system pressure is recorded by the pressure transducer on air-conditioning pressure duct.
Preferably, described compressor aperture records by monitoring the dutycycle of compressor external control valve output signal.
Preferably, described a period of time is 2min��5min.
Preferably, according to described engine speed, air conditioning system pressure, compressor aperture, it is determined that the method for compressor torque comprises the steps:
Tested by car engine rack, it is thus achieved that compressor rotary speed, air conditioning system pressure, torque meter between compressor aperture and compressor torque;
According to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, inquire about above-mentioned torque meter, and utilize interpolation method, it is thus achieved that compressor torque.
A kind of automobile air conditioner compressor torque control device includes the data obtaining module, the first computing module, the second computing module and the comparison module that are sequentially connected with;
Described breath acquisition module, it is for obtaining compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals;
Described first computing module, it is according to described compressor rotary speed, air conditioning system pressure, compressor aperture, it is determined that compressor torque;
Described second computing module, it is used for determining compressor torque changing value, this compressor torque changing value=rear first compression machine moment of torsion-front first compression machine moment of torsion+compensation settings, wherein, compensation settings is 0 first, and later compensation settings is a upper compensation settings and the compressor torque changing value sum tried to achieve;
Described comparison module, it is used for comparing compressor torque changing value and compressor torque setting value, if compressor torque changing value is more than compressor torque setting value, then when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, it is transformed to and exports corresponding dynamic torque according to rear first compression machine moment of torsion, and adjust rotating speed.
Preferably, described first computing module includes interconnective tabulation unit and inquiry arithmetic element;
Described tabulation unit, it is tested by car engine rack, it is thus achieved that compressor rotary speed, air conditioning system pressure, torque meter between compressor aperture and compressor torque;
Described inquiry arithmetic element, it, according to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, is inquired about above-mentioned torque meter, and utilizes interpolation method, it is thus achieved that compressor torque.
A kind of automobile air conditioner compressor torque control method provided by the present invention and device, it obtains compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals, compressor torque is determined with this, try to achieve the difference between compressor torque and compensation settings sum, determine compressor torque changing value, relatively compressor torque changing value and compressor torque setting value, so that it is determined that automobile engine output moment of torsion and rotating speed.By the method for the present invention and device, moment of torsion and rotating speed that automobile engine can export according to the adjustment of load of compressor can be made, it is to avoid start rotary speed unstabilization, the problem that car load vibration is bigger, improve driver and crew's comfortableness and safety.
Accompanying drawing explanation
The flow chart of the automobile air conditioner compressor torque control method that Fig. 1 provides for the embodiment of the present invention;
In the automobile air conditioner compressor torque control method that Fig. 2 provides for the embodiment of the present invention, according to engine speed, air conditioning system pressure, compressor aperture, it is determined that the flow chart of the method for compressor torque;
The block diagram of the automobile air conditioner compressor torque control device that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As it is shown in figure 1, a kind of automobile air conditioner compressor torque control method comprises the steps:
Step 100: obtain compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals, will be set as that �� t, �� t is 2min��5min interval time, be preferably 3min in the present embodiment. Wherein, compressor rotary speed calculates according to rotating ratio and the rotating speed of automobile engine of automobile engine driving wheel and compressor belt wheel, and rotating speed of automobile engine obtains by reading the engine speed data on ECU. Air conditioning system pressure is recorded by the pressure transducer on air-conditioning pressure duct. Compressor aperture records by monitoring the dutycycle of compressor external control valve output signal.
Step 200, according to compressor rotary speed, air conditioning system pressure, compressor aperture, it is determined that compressor torque, its concrete grammar as shown in Figure 2:
Step 201: tested by car engine rack, it is thus achieved that compressor rotary speed, air conditioning system pressure, torque meter between compressor aperture and compressor torque;
Step 202: according to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, inquire about above-mentioned torque meter, and utilize interpolation method, it is thus achieved that compressor torque.
Such as:
First time, according to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, tables look-up and after utilizing interpolation calculation, it is thus achieved that compressor torque T0;
After the 3min of interval, again obtain compressor rotary speed, air conditioning system pressure, compressor aperture, table look-up and after utilizing interpolation calculation, it is thus achieved that compressor torque T1;
Interval 3min again, obtains compressor torque T again2, by that analogy.
Step 300: determine compressor torque changing value, this compressor torque changing value=rear first compression machine moment of torsion-front first compression machine torque compensation setting value, wherein, compensation settings is 0 first, and later compensation settings is a upper compensation settings and the compressor torque changing value sum tried to achieve; Above-mentioned computational methods can be written as formula:
��Tn=Tn+1-Tn+Tm
��TnFor compressor torque changing value, Tm compensation settings, Tm=Tm+ �� Tn(n=0,1,2,3 ...)
Step 300: compare compressor torque changing value and compressor torque setting value, compressor torque changing value is �� Tn, compressor torque setting value Tsn, n=0,1,2,3 ..., compressor torque setting value TsnDemarcate according to engine rig test and know.
If �� is Tn> Tsn, then, when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, it is transformed to and exports corresponding dynamic torque according to rear first compression machine moment of torsion, and adjust rotating speed.Such as:
If �� is T0> Ts0, then when demand of auto engine is according to compressor torque T0When exporting corresponding dynamic torque, it is transformed to according to compressor torque T1Export corresponding dynamic torque, and adjust rotating speed.
If �� is Tn��Tsn, then, when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, export corresponding dynamic torque still according to this compressor torque, and rotating speed be set. Such as:
If �� is T0��Ts0, then when demand of auto engine is according to compressor torque T0When exporting corresponding dynamic torque, still according to compressor torque T0Export corresponding dynamic torque, and rotating speed is set.
Accordingly, as it is shown on figure 3, present invention also offers a kind of automobile air conditioner compressor torque control device, it includes data obtaining module the 500, first computing module the 600, second computing module 700 and the comparison module 800 that are sequentially connected with;
Breath acquisition module 500, it is for obtaining compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals;
First computing module 600, it is according to compressor rotary speed, air conditioning system pressure, compressor aperture, it is determined that compressor torque, and this first computing module 600 includes interconnective tabulation unit 601 and inquiry arithmetic element 602.
Tabulation unit 601, it is tested by car engine rack, it is thus achieved that compressor rotary speed, air conditioning system pressure, torque meter between compressor aperture and compressor torque;
Inquiry arithmetic element 602, it, according to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, is inquired about above-mentioned torque meter, and utilizes interpolation method, it is thus achieved that compressor torque.
Second computing module 700, it is used for determining compressor torque changing value, this compressor torque changing value=rear first compression machine moment of torsion-front first compression machine moment of torsion+compensation settings, wherein, compensation settings is 0 first, and later compensation settings is a upper compensation settings and the compressor torque changing value sum tried to achieve;
Comparison module 800, it is used for comparing compressor torque changing value and compressor torque setting value, if compressor torque changing value is more than compressor torque setting value, then when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, it is transformed to and exports corresponding dynamic torque according to rear first compression machine moment of torsion, and adjust rotating speed.
A kind of automobile air conditioner compressor torque control method that the embodiment of the present invention provides and device, it obtains compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals, compressor torque is determined with this, try to achieve the difference between compressor torque and compensation settings sum, determine compressor torque changing value, relatively compressor torque changing value and compressor torque setting value, so that it is determined that automobile engine output moment of torsion and rotating speed. By the method for the present invention and device, moment of torsion and rotating speed that automobile engine can export according to the adjustment of load of compressor can be made, it is to avoid start rotary speed unstabilization, the problem that car load vibration is bigger, improve driver and crew's comfortableness and safety.
In sum, present disclosure is not limited in above-described embodiment, and those skilled in the art can propose other embodiment easily according to the guiding theory of the present invention, and these embodiments are all included within the scope of the present invention.
Claims (9)
1. an automobile air conditioner compressor torque control method, it is characterised in that comprise the steps:
Obtain compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals;
According to described compressor rotary speed, air conditioning system pressure, compressor aperture, it is determined that compressor torque;
Determine compressor torque changing value, this compressor torque changing value=rear first compression machine moment of torsion-front first compression machine moment of torsion+compensation settings, wherein, compensation settings is 0 first, and later compensation settings is a upper compensation settings and the compressor torque changing value sum tried to achieve;
Relatively compressor torque changing value and compressor torque setting value, if compressor torque changing value is more than compressor torque setting value, then when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, it is transformed to and exports corresponding dynamic torque according to rear first compression machine moment of torsion, and adjust rotating speed.
2. automobile air conditioner compressor torque control method according to claim 1, it is characterised in that: described compressor rotary speed calculates according to rotating ratio and the rotating speed of automobile engine of automobile engine driving wheel and compressor belt wheel.
3. automobile air conditioner compressor torque control method according to claim 2, it is characterised in that: described rotating speed of automobile engine obtains by reading the engine speed data on ECU.
4. automobile air conditioner compressor torque control method according to claim 1, it is characterised in that: described air conditioning system pressure is recorded by the pressure transducer on air-conditioning pressure duct.
5. automobile air conditioner compressor torque control method according to claim 1, it is characterised in that: described compressor aperture records by monitoring the dutycycle of compressor external control valve output signal.
6. automobile air conditioner compressor torque control method according to claim 1, it is characterised in that: described a period of time is 2min��5min.
7. automobile air conditioner compressor torque control method according to claim 1, it is characterised in that according to described engine speed, air conditioning system pressure, compressor aperture, it is determined that the method for compressor torque comprises the steps:
Tested by car engine rack, it is thus achieved that compressor rotary speed, air conditioning system pressure, torque meter between compressor aperture and compressor torque;
According to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, inquire about above-mentioned torque meter, and utilize interpolation method, it is thus achieved that compressor torque.
8. an automobile air conditioner compressor torque control device, it is characterised in that include the data obtaining module, the first computing module, the second computing module and the comparison module that are sequentially connected with;
Described breath acquisition module, it is for obtaining compressor rotary speed, air conditioning system pressure, compressor aperture at set intervals;
Described first computing module, it is according to described compressor rotary speed, air conditioning system pressure, compressor aperture, it is determined that compressor torque;
Described second computing module, it is used for determining compressor torque changing value, this compressor torque changing value=rear first compression machine moment of torsion-front first compression machine moment of torsion+compensation settings, wherein, compensation settings is 0 first, and later compensation settings is a upper compensation settings and the compressor torque changing value sum tried to achieve;
Described comparison module, it is used for comparing compressor torque changing value and compressor torque setting value, if compressor torque changing value is more than compressor torque setting value, then when demand of auto engine exports corresponding dynamic torque according to front first compression machine moment of torsion, it is transformed to and exports corresponding dynamic torque according to rear first compression machine moment of torsion, and adjust rotating speed.
9. automobile air conditioner compressor torque control device according to claim 8, it is characterised in that described first computing module includes interconnective tabulation unit and inquiry arithmetic element;
Described tabulation unit, it is tested by car engine rack, it is thus achieved that compressor rotary speed, air conditioning system pressure, torque meter between compressor aperture and compressor torque;
Described inquiry arithmetic element, it, according to the compressor rotary speed obtained, air conditioning system pressure, compressor aperture, is inquired about above-mentioned torque meter, and utilizes interpolation method, it is thus achieved that compressor torque.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510227053.1A CN104806501B (en) | 2015-05-06 | 2015-05-06 | automobile air conditioner compressor torque control method and device |
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| CN201510227053.1A CN104806501B (en) | 2015-05-06 | 2015-05-06 | automobile air conditioner compressor torque control method and device |
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| CN104806501B true CN104806501B (en) | 2016-06-08 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106948954A (en) * | 2017-05-19 | 2017-07-14 | 重庆超力高科技股份有限公司 | Torque control device and torque control method, vehicle torsional moment control system |
| CN108506200B (en) * | 2018-02-26 | 2019-05-31 | 江苏大学 | A kind of control system and method for mixed driven automobile air conditioning torque in compressor |
| CN110985391B (en) * | 2019-11-11 | 2021-04-06 | 杭州电子科技大学 | Dynamic driving torque measuring device and method for electric scroll compressor |
| CN111322242B (en) * | 2019-11-14 | 2021-07-23 | 重庆建设车用空调器有限责任公司 | Efficiency optimization method for automobile air conditioner compressor |
| CN111120088B (en) * | 2019-12-26 | 2021-08-31 | 三一专用汽车有限责任公司 | Vehicle control system, vehicle, and control method |
| CN111706497B (en) * | 2020-06-30 | 2022-04-26 | 潍柴动力股份有限公司 | Torque correction method and related device for air compressor |
| CN112065700B (en) * | 2020-09-03 | 2021-11-12 | 东风汽车集团有限公司 | Torque control method for compressor and storage medium |
| CN113357135B (en) * | 2021-07-13 | 2023-03-28 | 奇瑞商用车（安徽）有限公司 | Torque compensation method for variable displacement compressor |
| CN114056042B (en) * | 2021-11-13 | 2022-09-30 | 安徽江淮汽车集团股份有限公司 | Air conditioner control circuit of truck system |
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| JP2007303416A (en) * | 2006-05-12 | 2007-11-22 | Toyota Industries Corp | Variable displacement compressor |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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