CN108331671B - Control method for improving automobile power performance - Google Patents
Control method for improving automobile power performance Download PDFInfo
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- CN108331671B CN108331671B CN201810111741.5A CN201810111741A CN108331671B CN 108331671 B CN108331671 B CN 108331671B CN 201810111741 A CN201810111741 A CN 201810111741A CN 108331671 B CN108331671 B CN 108331671B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a control method for improving the dynamic performance of an automobile, which comprises the steps of detecting the current working condition of the automobile; judging whether the current working condition is a starting working condition or an emergency acceleration working condition; if so, controlling the air conditioner to enter a disconnected state; judging whether the battery voltage is greater than a first threshold value; if yes, controlling the generator to enter a disconnection state; judging whether the water temperature of the engine is lower than a second threshold value; if yes, the fan is controlled to enter a disconnected state. According to the control method for improving the power performance of the automobile, the accessories which consume larger power of the engine are closed under a specific working condition, so that the energy consumption of the accessories is reduced, more energy is transmitted to the wheels to drive the automobile, and the improvement of the power performance of the automobile is realized. The control method for improving the power performance of the automobile does not need to change the current situation of a power system of the automobile, so that the implementation cost of the method is almost zero, and the method has high economical efficiency.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a control method for improving the power performance of an automobile.
Background
With the development of the automobile industry, energy conservation and environmental protection are the development life lines of automobile enterprises, and national regulations are met, so that the energy conservation and environmental protection are the minimum requirements of automobile products. The actual driving experience and experience of the vehicle during use is of greater concern to the user of the vehicle. These actual driving experiences and experiences include, among other things, the dynamic performance exhibited when the vehicle is traveling. Meanwhile, the country encourages people to select small-displacement automobiles under the background of energy conservation and environmental protection. The small-displacement automobile is usually matched with a small-displacement engine, so that the power performance shown under certain working conditions is unsatisfactory, such as starting and rapid acceleration.
At present, the confirmation of the dynamic performance of the automobile mainly depends on the matching of an engine, a gearbox and the automobile. When the displacement of the engine, the speed ratio of the gearbox and other parameters are determined, the dynamic performance of the vehicle is basically determined. If the dynamic performance of the vehicle needs to be improved, the matching of the engine, the gearbox and the vehicle needs to be carried out again. However, in the process of re-matching, the hardware configuration needs to be changed, the time period is long, and meanwhile, the influence on the economy, the emission and the like of the automobile is caused, and the influence may cause that a lot of time is needed to perform calibration optimization on the engine and the vehicle to meet the requirements of the economy and the emission.
Disclosure of Invention
The invention aims to provide a control method for improving the power performance of an automobile, which is used for solving the problems in the prior art, improving the power performance of the automobile and reducing the control cost.
The invention provides a control method for improving the dynamic performance of an automobile, which comprises the following steps:
s100, detecting the current working condition of the vehicle;
s200, judging whether the current working condition is a starting working condition or an emergency acceleration working condition; if yes, go to step S300; if not, the step S100 is carried out;
step S300, controlling the air conditioner to enter a disconnected state;
step S400, judging whether the battery voltage is greater than a first threshold value; if yes, go to step S500; if not, the step S600 is carried out;
s500, controlling the generator to enter a disconnection state;
step S600, judging whether the water temperature of the engine is lower than a second threshold value; if yes, go to step S700; if not, the step S100 is carried out;
and step S700, controlling the fan to enter a disconnected state.
The control method for improving the power performance of the automobile as described above, wherein preferably, whether the vehicle is in a starting condition is judged by the following steps:
step A, judging whether the opening degree of an accelerator is larger than a preset opening degree threshold value or not; if yes, entering the step B; if not, entering step F;
b, judging whether the vehicle speed is less than a preset vehicle speed threshold value; if yes, entering the step C; if not, entering step F;
c, judging whether the rotating speed of the engine is smaller than a preset rotating speed threshold value or not; if yes, entering step D; if not, entering step F;
d, judging whether the current gear is located at a preset gear or not; if yes, entering step E; if not, entering step F;
e, determining that the vehicle is in a starting working condition;
and F, determining that the vehicle is in a non-starting working condition.
The control method for improving the power performance of the automobile as described above, wherein preferably, whether the vehicle is in the rapid acceleration condition is judged by the following steps:
step a, judging whether the vehicle speed is less than a preset vehicle speed threshold value; if yes, entering the step b; if not, entering the step h;
b, judging whether the rotating speed of the engine is smaller than a preset rotating speed threshold value or not; if yes, entering step c; if not, entering the step h;
step c, judging whether the accelerator change rate is larger than a set change rate threshold value or not; if yes, entering the step d; if not, entering the step h;
d, timing by a timer;
step e, judging whether the timing time of the timer is smaller than a pre-examination time threshold value; if yes, entering step f; if not, entering the step h;
step f, judging whether the opening degree of the accelerator is larger than a preset opening degree threshold value or not; if yes, entering step g; if not, entering the step h;
step g, determining that the vehicle is in a rapid acceleration working condition;
and h, determining that the vehicle is in an emergency acceleration working condition.
The control method for improving the dynamic performance of the automobile as described above, wherein preferably, the step S300 specifically includes:
and the air conditioner relay is disconnected to control the air conditioner to enter a disconnected state.
The control method for improving the vehicle dynamic performance as described above, wherein preferably, the step S400 specifically includes:
and controlling a generator relay to cut off a generator exciting circuit so as to enable the generator to enter an off state.
According to the control method for improving the power performance of the automobile, the accessories which consume larger power of the engine are closed under a specific working condition, so that the energy consumption of the accessories is reduced, more energy is transmitted to the wheels to drive the automobile, and the improvement of the power performance of the automobile is realized. The control method for improving the power performance of the automobile does not need to change the current situation of a power system of the automobile, so that the implementation cost of the method is almost zero, and the method has high economical efficiency.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a flowchart of a control method for improving vehicle power performance according to an embodiment of the present invention;
FIG. 2 is a flowchart of a control method for improving vehicle power performance according to another embodiment of the present invention;
fig. 3 is a flowchart of a control method for improving the power performance of a vehicle according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1, an embodiment of the present invention provides a control method for improving power performance of an automobile, including the following steps:
and S100, detecting the current working condition of the vehicle.
S200, judging whether the current working condition is a starting working condition or an emergency acceleration working condition; if yes, go to step S300; if not, the process proceeds to step S100.
And step S300, controlling the air conditioner to enter a disconnected state.
The air conditioner can be controlled to enter the off state by disconnecting the air conditioner relay.
Step S400, judging whether the battery voltage is greater than a first threshold value; if yes, go to step S500; if not, the process proceeds to step S600.
And step S500, controlling the generator to enter a disconnected state.
Wherein, the generator relay can be controlled to cut off the generator exciting circuit so as to enable the generator to enter a disconnected state.
Step S600, judging whether the water temperature of the engine is lower than a second threshold value; if yes, go to step S700; if not, the process proceeds to step S100.
And step S700, controlling the fan to enter a disconnected state.
Compared with the prior art, the control method for improving the power performance of the automobile provided by the embodiment of the invention reduces the energy consumption of accessories by closing certain accessories which consume larger power of the engine under a specific working condition, so that more energy is transmitted to wheels to drive the automobile, and the improvement of the power performance of the automobile is realized. The control method for improving the power performance of the automobile does not need to change the current situation of a power system of the automobile, so the implementation cost of the method is almost zero, and the method has high economical efficiency.
As shown in fig. 2, in another embodiment provided by the present invention, the control method for improving the dynamic performance of the vehicle includes:
and S100, detecting the current working condition of the vehicle.
S200, judging whether the current working condition is a starting working condition or an emergency acceleration working condition; if yes, go to step S300; if not, the process proceeds to step S100.
The step of judging whether the vehicle is in the starting working condition comprises the following steps:
step A, judging whether the opening degree of an accelerator is larger than a preset opening degree threshold value or not; if yes, entering the step B; if not, go to step F.
B, judging whether the vehicle speed is less than a preset vehicle speed threshold value; if yes, entering the step C; if not, go to step F.
C, judging whether the rotating speed of the engine is smaller than a preset rotating speed threshold value or not; if yes, entering step D; if not, go to step F.
D, judging whether the current gear is located at a preset gear or not; if yes, entering step E; if not, go to step F.
And E, determining that the vehicle is in a starting state, and entering the step 300.
And F, determining that the vehicle is in a non-starting state.
And step S300, controlling the air conditioner to enter a disconnected state.
Step S400, judging whether the battery voltage is greater than a first threshold value; if yes, go to step S500; if not, the process proceeds to step S600.
And step S500, controlling the generator to enter a disconnected state.
Step S600, judging whether the water temperature of the engine is lower than a second threshold value; if yes, go to step S700; if not, the process proceeds to step S100.
And step S700, controlling the fan to enter a disconnected state.
As shown in fig. 3, in another embodiment provided by the present invention, the control method for improving the dynamic performance of the vehicle includes:
and S100, detecting the current working condition of the vehicle.
S200, judging whether the current working condition is a starting working condition or an emergency acceleration working condition; if yes, go to step S300; if not, the process proceeds to step S100.
The step of judging whether the vehicle is in the rapid acceleration working condition specifically comprises the following steps:
step a, judging whether the vehicle speed is less than a preset vehicle speed threshold value; if yes, entering the step b; if not, go to step h.
B, judging whether the rotating speed of the engine is smaller than a preset rotating speed threshold value or not; if yes, entering step c; if not, go to step h.
Step c, judging whether the accelerator change rate is larger than a set change rate threshold value or not; if yes, entering the step d; if not, go to step h.
And d, timing by a timer.
Step e, judging whether the timing time of the timer is smaller than a pre-examination time threshold value; if yes, entering step f; if not, go to step h.
Step f, judging whether the opening degree of the accelerator is larger than a preset opening degree threshold value or not; if yes, entering step g; if not, go to step h.
And step g, determining that the vehicle is in a rapid acceleration state, and entering step 300.
And h, determining that the vehicle is in an emergency acceleration state.
And step S300, controlling the air conditioner to enter a disconnected state.
Step S400, judging whether the battery voltage is greater than a first threshold value; if yes, go to step S500; if not, the process proceeds to step S600.
And step S500, controlling the generator to enter a disconnected state.
Step S600, judging whether the water temperature of the engine is lower than a second threshold value; if yes, go to step S700; if not, the process proceeds to step S100.
And step S700, controlling the fan to enter a disconnected state.
According to the control method for improving the power performance of the automobile, which is provided by the embodiment of the invention, certain accessories which consume larger power of the engine are closed under a specific working condition, so that the energy consumption of the accessories is reduced, more energy is transmitted to the wheels to drive the automobile, and the improvement of the power performance of the automobile is realized. The control method for improving the power performance of the automobile does not need to change the current situation of a power system of the automobile, so that the implementation cost of the method is almost zero, and the method has high economical efficiency.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (3)
1. A control method for improving the dynamic performance of an automobile is characterized by comprising the following steps:
s100, detecting the current working condition of the vehicle;
s200, judging whether the current working condition is a rapid acceleration working condition or not; if yes, go to step S300; if not, the step S100 is carried out;
step S300, controlling the air conditioner to enter a disconnected state;
step S400, judging whether the battery voltage is greater than a first threshold value; if yes, go to step S500; if not, the step S600 is carried out;
s500, controlling the generator to enter a disconnection state;
step S600, judging whether the water temperature of the engine is lower than a second threshold value; if yes, go to step S700; if not, the step S100 is carried out;
step S700, controlling the fan to enter a disconnected state;
judging whether the vehicle is in a sudden acceleration working condition or not by the following steps:
step a, judging whether the vehicle speed is less than a preset vehicle speed threshold value; if yes, entering the step b; if not, entering the step h;
b, judging whether the rotating speed of the engine is smaller than a preset rotating speed threshold value or not; if yes, entering step c; if not, entering the step h;
step c, judging whether the accelerator change rate is larger than a set change rate threshold value or not; if yes, entering the step d; if not, entering the step h;
d, timing by a timer;
step e, judging whether the timing time of the timer is smaller than a preset time threshold value; if yes, entering step f; if not, entering the step h;
step f, judging whether the opening degree of the accelerator is larger than a preset opening degree threshold value or not; if yes, entering step g; if not, entering the step h;
step g, determining that the vehicle is in a rapid acceleration working condition;
and h, determining that the vehicle is in an emergency acceleration working condition.
2. The control method for improving the dynamic performance of the automobile according to claim 1, wherein the step S300 specifically comprises:
and the air conditioner relay is disconnected to control the air conditioner to enter a disconnected state.
3. The control method for improving the dynamic performance of the automobile according to claim 1, wherein the step S400 specifically comprises:
and controlling a generator relay to cut off a generator exciting circuit so as to enable the generator to enter an off state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810111741.5A CN108331671B (en) | 2018-02-05 | 2018-02-05 | Control method for improving automobile power performance |
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| CN201810111741.5A CN108331671B (en) | 2018-02-05 | 2018-02-05 | Control method for improving automobile power performance |
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| CN108331671B true CN108331671B (en) | 2021-02-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101857022A (en) * | 2009-04-13 | 2010-10-13 | 杨铭域 | Power control method and system |
| CN102506021B (en) * | 2011-11-11 | 2015-02-18 | 郑州宇通客车股份有限公司 | Control device and method for air-conditioning compressor of low-displacement automobile |
| CN104118425B (en) * | 2013-04-26 | 2018-06-26 | 比亚迪股份有限公司 | The control method of automobile and the dynamical system of automobile |
| CN103241099B (en) * | 2013-05-23 | 2015-10-28 | 奇瑞汽车股份有限公司 | The method of airconditioning control and device |
| KR101426291B1 (en) * | 2014-04-21 | 2014-08-05 | 국방과학연구소 | Apparatus for temperature rising of battery in hybrid vehicle and method for rising battery temperature using the same |
| 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 |
| CN205779198U (en) * | 2016-06-03 | 2016-12-07 | 西京学院 | A kind of automobile engine cooling intelligent control system |
| CN106240497B (en) * | 2016-08-29 | 2019-01-22 | 广州汽车集团股份有限公司 | A kind of driving operating mode's switch method |
| CN107620646A (en) * | 2017-08-10 | 2018-01-23 | 北汽福田汽车股份有限公司 | Dual-purpose fuel vehicle and control method for dual-purpose fuel vehicle, device |
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