CN103552443A - Method for controlling automobile air conditioner when in crash acceleration of automobile - Google Patents
Method for controlling automobile air conditioner when in crash acceleration of automobile Download PDFInfo
- Publication number
- CN103552443A CN103552443A CN201310474392.0A CN201310474392A CN103552443A CN 103552443 A CN103552443 A CN 103552443A CN 201310474392 A CN201310474392 A CN 201310474392A CN 103552443 A CN103552443 A CN 103552443A
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- CN
- China
- Prior art keywords
- automobile
- air conditioner
- schedule time
- control unit
- electromechanical source
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001133 acceleration Effects 0.000 title claims abstract description 14
- 239000000446 fuel Substances 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 210000002445 nipple Anatomy 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 20
- 238000004378 air conditioning Methods 0.000 claims description 18
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a method for controlling an automobile air conditioner when in crash acceleration of an automobile. The method is used for switching off a relay of a compressor of the air conditioner in due time in crash acceleration of the automobile, so that the temperature comfort in the automobile is not affected, the acceleration power of an engine is increased in a short time, and the requirement on acceleration of the automobile is met. The method comprises the following steps that a control unit detects the fuel injection pulse width of single fuel nozzles in the engine, if the fuel pulse width of the fuel nozzles is higher than a preset threshold value (T) in M1 continuous periods, then the control unit can determine that the automobile is in crush acceleration, and the power of the compressor of the air conditioner is switched off by the control unit for a first preset time (T1). By the method, whether the automobile is in the crash acceleration process or not is judged by detecting the work state of the fuel nozzles, the power of the compressor of the air conditioner is switched off in the crash acceleration process, the acceleration power of the engine is increased in a short time, the driving comfort is improved, fuel consumption is reduced, and the requirement on energy conservation and environmental protection at present is met.
Description
Technical field
The invention belongs to automobile control technology field, specially refer to the control method of a kind of air conditioning for automobiles when automobile emergency accelerates.
Background technology
Along with the theory of rise of the oil price and energy-conserving and environment-protective is rooted in the hearts of the people gradually, light car, with relatively low use and maintenance cost, is accepted and likes for popular gradually.But the small displacement engine that light car is used, ubiquity low speed torque is not high, and under slow speed of revolution, driving engine net output is not high, the large percentage that the power of air-conditioning compressor consumption accounts in net output.Therefore in use, while especially opening refrigeration air-conditioner, acceleration capability is not enough, has become the bottleneck that affects light car comfort for light car.
Summary of the invention
The object of the invention is to propose the control method of a kind of air conditioning for automobiles when automobile emergency accelerates, be used in automobile emergency accelerator, disconnect air-conditioning compressor relay in good time, thereby when not affecting vehicle interior temperature traveling comfort, promote in short-term the accelerating power of driving engine, meet the needs that automobile accelerates.
The control method of air conditioning for automobiles of the present invention when automobile emergency accelerates comprises steps A: control unit detect driving engine in real time in the fuel injection pulsewidth of single spraying nipple, if the fuel injection pulsewidth of this spraying nipple all exceeds predetermined threshold value (T) in continuous N in 1 cycle, control unit judges that automobile is in anxious acceleration, control unit disconnects air conditioner compressed electromechanical source and continues first schedule time (T1), and described M1 is the predetermined integer that is greater than 1; That to be control unit search according to automotive engine discharge capacity (L) and present engine rotating speed (N) form that prestores to described threshold value (T) is resulting.
Further, the control method of above-mentioned air conditioning for automobiles when automobile emergency accelerates also comprises step B: control unit detects the fuel injection pulsewidth of single spraying nipple in driving engine in first schedule time (T1) after disconnecting air conditioner compressed electromechanical source, if the fuel injection pulsewidth of this spraying nipple all exceeds described threshold value (T) in continuous N in 2 cycles, control unit is in follow-up continuous air conditioner compressed second schedule time of electromechanical source (T2) that remains open of first schedule time (T1), and then connect air conditioner compressed electromechanical source, and re-execute steps A after the 3rd schedule time (T3) of connecting air conditioner compressed electromechanical source, if the fuel injection pulsewidth of this spraying nipple does not all exceed described threshold value (T) in continuous N in 2 cycles lower than the fuel injection pulsewidth of described threshold value (T) or this spraying nipple, control unit is connected air conditioner compressed electromechanical source after first schedule time (T1) after disconnecting air conditioner compressed electromechanical source, and re-executing steps A after connecting the 3rd schedule time (T3) of air conditioner compressed electromechanical source, described M2 is the predetermined integer that is greater than 1.The setting of above-mentioned second schedule time (T2), has fully guaranteed the acceleration capacity of automobile in the short time, and the 3rd schedule time (T3) the work-hours that can guarantee air-conditioning is set, avoid vehicle interior temperature too high and affect traveling comfort.
Further, described in the prestore computing formula of the threshold value (T) in form as follows: T=K/ (L*N), described L is automotive engine discharge capacity, described N is automobile rotational speed, described K is predetermined constant.
Specifically, described first schedule time (T1) is 3～12 seconds; Described second schedule time (T2) is 1～3 second; Described the 3rd schedule time (T3) is 3～6 minutes; Described M1, M2 are certain integral value in 4～12.
Whether first the present invention judge automobile anxious accelerator by detecting the mode of operation of spraying nipple, and break air conditioner compressed electromechanical source in the anxious accelerator of automobile, the power of driving engine consumption on air-conditioning compressor is released like this, promote in short-term the accelerating power of driving engine, be conducive to engine operation under desirable operating mode, promote driver comfort, reduce oil consumption, meet the theme that current energy-conserving and environment-protective are large.
Accompanying drawing explanation
Fig. 1 is the diagram of circuit of the control method of air conditioning for automobiles of the present invention when automobile emergency accelerates.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and principle of work etc.
Embodiment 1:
As shown in Figure 1, the automobile of equipping 2.0 liters of driving engines of take is example, and the control method of the air conditioning for automobiles of the present embodiment when automobile emergency accelerates comprises the steps:
A: control unit detects in real time the fuel injection pulsewidth of single spraying nipple in driving engine and (specifically can realize by detecting the height of spraying nipple control level, this is prior art, the present invention repeats no more), if the fuel injection pulsewidth of this spraying nipple all exceeds predetermined threshold value (3 milliseconds) within continuous ten cycles, control unit judges that automobile is in anxious acceleration, and control unit disconnects air conditioner compressed electromechanical source and continues first schedule time (8 second); That to be control unit search according to automotive engine discharge capacity (L) and present engine rotating speed (N) form that prestores to described threshold value (3 milliseconds) is resulting, specifically can adopt following computing formula to obtain: T=K/ (L*N), described L is automotive engine discharge capacity, described N is automobile rotational speed, and described K is predetermined constant.
B: the fuel injection pulsewidth of single spraying nipple in detecting driving engine during after disconnecting air conditioner compressed electromechanical source the 6th second of control unit, if the fuel injection pulsewidth of this spraying nipple all exceeds described threshold value (3 milliseconds) within continuous ten cycles, control unit is in follow-up continuous air conditioner compressed second schedule time of electromechanical source (2 second) that remains open of first schedule time (8 second), and then connect air conditioner compressed electromechanical source, and re-execute steps A after the 3rd schedule time (5 minutes) of connecting air conditioner compressed electromechanical source; If the fuel injection pulsewidth of this spraying nipple does not all exceed described threshold value (3 milliseconds) lower than the fuel injection pulsewidth of described threshold value (3 milliseconds) or this spraying nipple within continuous ten cycles, control unit is connected air conditioner compressed electromechanical source after first schedule time (8 second) after disconnecting air conditioner compressed electromechanical source, and re-executes steps A after the 3rd schedule time (5 minutes) of connecting air conditioner compressed electromechanical source.
Claims (7)
1. the air conditioning for automobiles control method when automobile emergency accelerates, it is characterized in that comprising steps A: control unit detects the fuel injection pulsewidth of single spraying nipple in driving engine in real time, if the fuel injection pulsewidth of this spraying nipple all exceeds predetermined threshold value (T) in continuous N in 1 cycle, control unit judges that automobile is in anxious acceleration, control unit disconnects air conditioner compressed electromechanical source and continues first schedule time (T1), and described M1 is the predetermined integer that is greater than 1; That to be control unit search according to automotive engine discharge capacity (L) and present engine rotating speed (N) form that prestores to described threshold value (T) is resulting.
2. the control method of air conditioning for automobiles according to claim 1 when automobile emergency accelerates, characterized by further comprising step B: control unit detects the fuel injection pulsewidth of single spraying nipple in driving engine in first schedule time (T1) after disconnecting air conditioner compressed electromechanical source, if the fuel injection pulsewidth of this spraying nipple all exceeds described threshold value (T) in continuous N in 2 cycles, control unit is in follow-up continuous air conditioner compressed second schedule time of electromechanical source (T2) that remains open of first schedule time (T1), and then connect air conditioner compressed electromechanical source, and re-execute steps A after the 3rd schedule time (T3) of connecting air conditioner compressed electromechanical source, if the fuel injection pulsewidth of this spraying nipple does not all exceed described threshold value (T) in continuous N in 2 cycles lower than the fuel injection pulsewidth of described threshold value (T) or this spraying nipple, control unit is connected air conditioner compressed electromechanical source after first schedule time (T1) after disconnecting air conditioner compressed electromechanical source, and re-executing steps A after connecting the 3rd schedule time (T3) of air conditioner compressed electromechanical source, described M2 is the predetermined integer that is greater than 1.
3. the control method of air conditioning for automobiles according to claim 1 and 2 when automobile emergency accelerates, the computing formula of the threshold value (T) in form that prestores described in it is characterized in that is as follows: T=K/ (L*N), described L is automotive engine discharge capacity, described N is automobile rotational speed, and described K is predetermined constant.
4. the control method of air conditioning for automobiles according to claim 1 and 2 when automobile emergency accelerates, is characterized in that described first schedule time (T1) is 3～12 seconds.
5. the control method of air conditioning for automobiles according to claim 1 and 2 when automobile emergency accelerates, is characterized in that described second schedule time (T2) is 1～3 second.
6. the control method of air conditioning for automobiles according to claim 1 and 2 when automobile emergency accelerates, is characterized in that described the 3rd schedule time (T3) is 3～6 minutes.
7. the control method of air conditioning for automobiles according to claim 1 and 2 when automobile emergency accelerates, is characterized in that described M1, M2 are certain integral value in 4～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474392.0A CN103552443B (en) | 2013-10-12 | 2013-10-12 | The control method of a kind of air conditioning for automobiles in the time that automobile emergency accelerates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474392.0A CN103552443B (en) | 2013-10-12 | 2013-10-12 | The control method of a kind of air conditioning for automobiles in the time that automobile emergency accelerates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103552443A true CN103552443A (en) | 2014-02-05 |
| CN103552443B CN103552443B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310474392.0A Active CN103552443B (en) | 2013-10-12 | 2013-10-12 | The control method of a kind of air conditioning for automobiles in the time that automobile emergency accelerates |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589956A (en) * | 2014-12-19 | 2015-05-06 | 奇瑞汽车股份有限公司 | Automatic vehicle-mounted air conditioner control system and method |
| CN104842739A (en) * | 2014-11-13 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle control system, vehicle and control method |
| CN105539071A (en) * | 2015-12-23 | 2016-05-04 | 奇瑞汽车股份有限公司 | Automobile traveling control method and system |
| CN106032796A (en) * | 2016-06-24 | 2016-10-19 | 安徽工程大学 | System and method for controlling air conditioner compressor disconnection during fast acceleration of automobile |
| CN105015303B (en) * | 2015-07-16 | 2017-05-10 | 奇瑞汽车股份有限公司 | Optimization method of power control under started state of automobile air conditioner |
| CN111347840A (en) * | 2018-12-21 | 2020-06-30 | 北京宝沃汽车有限公司 | Control method and device for compressor cut-off point, controller and vehicle |
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-
2013
- 2013-10-12 CN CN201310474392.0A patent/CN103552443B/en active Active
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842739A (en) * | 2014-11-13 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle control system, vehicle and control method |
| CN104589956A (en) * | 2014-12-19 | 2015-05-06 | 奇瑞汽车股份有限公司 | Automatic vehicle-mounted air conditioner control system and method |
| CN105015303B (en) * | 2015-07-16 | 2017-05-10 | 奇瑞汽车股份有限公司 | Optimization method of power control under started state of automobile air conditioner |
| CN105539071A (en) * | 2015-12-23 | 2016-05-04 | 奇瑞汽车股份有限公司 | Automobile traveling control method and system |
| CN106032796A (en) * | 2016-06-24 | 2016-10-19 | 安徽工程大学 | System and method for controlling air conditioner compressor disconnection during fast acceleration of automobile |
| CN111347840A (en) * | 2018-12-21 | 2020-06-30 | 北京宝沃汽车有限公司 | Control method and device for compressor cut-off point, controller and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103552443B (en) | 2016-05-18 |
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