CN110159438B - Engine idling control method, device and equipment - Google Patents
Engine idling control method, device and equipment Download PDFInfo
- Publication number
- CN110159438B CN110159438B CN201910312562.2A CN201910312562A CN110159438B CN 110159438 B CN110159438 B CN 110159438B CN 201910312562 A CN201910312562 A CN 201910312562A CN 110159438 B CN110159438 B CN 110159438B
- Authority
- CN
- China
- Prior art keywords
- water temperature
- preset
- rotating speed
- value
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
- F02D31/008—Electric control of rotation speed controlling fuel supply for idle speed control
-
- 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
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/021—Engine temperature
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention relates to the technical field of engines, in particular to an engine idle speed control method, device and equipment, which comprises the steps of controlling the rotating speed of an engine to a starting rotating speed when receiving an engine starting request; when the rotating speed reaches the starting rotating speed, the current water temperature of the engine is obtained; acquiring at least two preset water temperature values, and correspondingly setting a preset rotating speed value according to each preset water temperature value; gradually increasing according to the preset water temperature value, wherein the preset rotating speed corresponding to the preset water temperature value with high set temperature is less than the preset rotating speed corresponding to the preset water temperature value with low set temperature; judging whether the current water temperature value reaches a preset water temperature value or not; when the current water temperature does not reach the preset water temperature value, the rotating speed is kept unchanged; and when the current water temperature reaches a preset water temperature value, controlling the rotating speed to be reduced to a corresponding preset rotating speed value. According to the invention, the rotating speed of the engine is reduced in the idling process by controlling the water temperature, so that the vibration caused by the resonance of the vehicle is avoided, the emission of the vehicle is reduced, and the comfort of the vehicle is improved.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine idle speed control method, device and equipment.
Background
With the development of economy, the automobile industry is developing faster and faster, more consumers select automobiles as a first travel tool, the holding amount of the automobiles is increasing, so national regulations are becoming stricter for automobile emission, and the requirements of the consumers for the comfort of automobile driving are higher and higher.
The normal idling of the automobile engine from start-up to the end of the period is one of the most frequently used conditions by the user, the emission level in the process directly influences the overall emission index of the automobile, and the NVH (noise Vibration harshness) comfort of the working process is also most concerned by the driver and passengers.
In general, after an engine is started, in order to enable a catalyst to achieve good exhaust emission performance and enable the engine to enter an optimal working state as soon as possible, a catalyst ignition working condition and a warming working condition are immediately entered, so that the catalyst and the engine are rapidly heated to a proper temperature, and the engine is required to start to operate under a working condition higher than a stable idling speed after being started and gradually reduce to a stable idling speed. However, in the control strategy of the process, only two points of the highest working rotating speed and the stable idling speed of the ignition working condition after the engine is started are usually specified, and the rotating speed reduction process is controlled to freely reduce by a plurality of set engine water temperature points. The middle process randomness that can make the engine speed decline like this is too strong, and the rotational speed is undulant greatly, makes to appear irregular shake in the car, also can make the rotational speed pass the time increase in the vehicle structure resonance area moreover, greatly influences driver's vibration travelling comfort.
In order to solve the above problems, a reasonable engine idle speed control process is a problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a method, a device and an apparatus for controlling an idle speed of an engine, which can control a reduction of an engine speed during an idle speed process by controlling a water temperature, so as to avoid a shake caused by a resonance of a vehicle, reduce an emission of the vehicle, and improve a comfort of the vehicle.
In order to solve the above problem, the present invention provides an engine idle speed control method including:
when an engine starting request is received, controlling the rotating speed of the engine to be a starting rotating speed;
when the rotating speed reaches the starting rotating speed, acquiring the current water temperature of the engine;
acquiring at least two preset water temperature values, and correspondingly setting a preset rotating speed value according to each preset water temperature value;
according to the gradual rise of the preset water temperature value, setting the preset rotating speed corresponding to the preset water temperature value with high temperature to be lower than the preset rotating speed corresponding to the preset water temperature value with low temperature;
judging whether the current water temperature value reaches the preset water temperature value or not;
when the current water temperature does not reach the preset water temperature value, the rotating speed is kept unchanged;
and when the current water temperature reaches the preset water temperature value, controlling the rotating speed to be reduced to the corresponding preset rotating speed value.
Further, controlling the rotation speed to decrease to the corresponding preset rotation speed value comprises:
acquiring a difference value of the preset water temperature values;
and controlling the current water temperature to be within the difference value of the preset water temperature values according to the difference value of the preset water temperature values, and reducing the rotating speed to the preset rotating speed value.
Further, the difference range of the preset water temperature value is 1-3 ℃.
Further, the starting rotating speed range is 1100rpm-1500 rpm.
Further, the starting temperature range of the current water temperature is 30 ℃ below zero to 10 ℃ below zero.
Further, the preset water temperature value comprises a first preset water temperature value and a second preset water temperature value, the first preset water temperature value is 25 ℃, and the second preset water temperature value is 60 ℃.
Further, the preset rotating speed corresponding to the preset water temperature value comprises a first preset rotating speed and a second preset rotating speed;
the first preset rotating speed corresponds to the first preset water temperature value, and the first preset rotating speed is 850 rpm;
the second preset rotating speed corresponds to the second preset water temperature value, and the second preset rotating speed is 700 rpm.
Further, the rotation speed is controlled by the fuel injection amount of the engine.
In another aspect of the present invention, an engine idle speed control apparatus is further provided, including:
the first control unit is used for controlling the rotating speed of the engine to a starting rotating speed when receiving an engine starting request;
the information acquisition unit is used for acquiring the current water temperature of the engine when the rotating speed reaches the starting rotating speed;
the device comprises a first determining unit, a second determining unit and a control unit, wherein the first determining unit is used for acquiring at least two preset water temperature values and correspondingly setting a preset rotating speed value according to each preset water temperature value;
the second determining unit is used for gradually increasing according to the preset water temperature value, and the preset rotating speed corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed corresponding to the preset water temperature value with low set temperature;
the information judgment unit is used for judging whether the current water temperature value reaches the preset water temperature value or not;
the first execution unit is used for keeping the rotating speed unchanged when the current water temperature does not reach the preset water temperature value;
and the second execution unit is used for controlling the rotating speed to be reduced to the corresponding preset rotating speed value when the current water temperature reaches the preset water temperature value.
In another aspect of the present invention, an engine idle speed control apparatus is also protected, including: the system comprises an information acquisition device, an engine controller and a water temperature controller;
the engine controller is used for controlling the rotating speed of the engine to a starting rotating speed when receiving an engine starting request;
the information acquisition device is used for acquiring the current water temperature of the engine when the rotating speed reaches the starting rotating speed;
the water temperature controller is used for acquiring at least two preset water temperature values;
the engine controller is used for correspondingly setting a preset rotating speed value according to each preset water temperature value;
the engine controller is used for gradually increasing according to the preset water temperature value, and the preset rotating speed corresponding to the preset water temperature value with high set temperature is lower than the preset rotating speed corresponding to the preset water temperature value with low set temperature;
the water temperature controller is used for judging whether the current water temperature value reaches the pre-water temperature value or not;
the engine controller is used for maintaining the rotating speed unchanged when the current water temperature does not reach the preset water temperature value;
and the engine controller is used for controlling the rotating speed to be reduced to the corresponding preset rotating speed value when the current water temperature reaches the preset water temperature value.
Due to the technical scheme, the invention has the following beneficial effects:
1) according to the method, the device and the equipment for controlling the idling of the engine, disclosed by the invention, the rotating speed of the engine is reduced in a step mode in the process of initiating combustion of the catalyst to the stable idling of the engine by controlling the water temperature of the engine, the influence on the rotating speed fluctuation caused by uncertainty in the rotating speed reduction process is reduced, the rotating speed is prevented from passing through a vehicle body structure to resonate, the resonance time is reduced, irregular jitter is reduced, the comfort of a vehicle is improved, and the satisfaction degree of customers is improved.
2) According to the method, the device and the equipment for controlling the idling of the engine, disclosed by the invention, the water temperature of the engine is controlled, the working processes of the catalyst and the engine are reasonably planned, so that the catalyst and the engine can reach ideal working temperatures, the phenomenon that the rotating speed of the engine is reduced too fast, the warming-up time is sufficient is avoided, the phenomenon that the temperature of the catalyst is insufficient, the emission is increased, the emission is reduced, and the economical efficiency of a vehicle is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart of an engine idle speed control method provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an engine idle speed control apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third execution unit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
The embodiment provides an engine idle speed control method, device and equipment.
As shown in fig. 1, the engine idle control method includes:
s101, when an engine starting request is received, controlling the rotating speed of an engine to be a starting rotating speed;
s102, when the rotating speed reaches the starting rotating speed, obtaining the current water temperature of the engine;
s103, obtaining at least two preset water temperature values, and correspondingly setting a preset rotating speed value according to each preset water temperature value;
s104, gradually increasing according to the preset water temperature value, wherein the preset rotating speed corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed corresponding to the preset water temperature value with low set temperature;
s105, judging whether the current water temperature value reaches the preset water temperature value or not;
s106, when the current water temperature does not reach the preset water temperature value, maintaining the rotating speed unchanged;
and S107, when the current water temperature reaches the preset water temperature value, controlling the rotating speed to be reduced to the corresponding preset rotating speed value.
Further, controlling the rotation speed to decrease to the corresponding preset rotation speed value comprises:
acquiring a difference value of the preset water temperature values;
and controlling the current water temperature to be within the error value of the preset water temperature value according to the difference value of the preset water temperature value, and reducing the rotating speed to the preset rotating speed value.
Specifically, the difference range of the preset water temperature value is 1-3 ℃.
Preferably, the difference between the preset water temperature values is 2 ℃.
Specifically, the starting rotating speed range is 1100rpm-1500 rpm.
Preferably, the starting speed is 1300 rpm.
Specifically, the initial temperature range of the current water temperature is 30 ℃ below zero to 10 ℃ below zero
Preferably, the starting temperature of the current water temperature is minus 20 ℃.
Preferably, the preset water temperature value includes a first preset water temperature value and a second preset water temperature value, the first preset water temperature value is 25 ℃, and the second preset water temperature value is 60 ℃.
Preferably, the preset rotating speed corresponding to the preset water temperature value comprises a first preset rotating speed and a second preset rotating speed;
the first preset rotating speed corresponds to the first preset water temperature value, and the first preset rotating speed is 850 rpm;
the second preset rotating speed corresponds to the second preset water temperature value, and the second preset rotating speed is 700 rpm.
Preferably, the rotation speed is controlled by the fuel injection amount of the engine.
Further, when the current water temperature does not reach the preset water temperature value, the rotating speed is kept unchanged by maintaining the oil injection quantity of the engine;
and when the current water temperature reaches the preset water temperature value, reducing the oil injection quantity of the engine to reduce the rotating speed to the corresponding preset rotating speed value.
As shown in fig. 2, the engine idle speed control device includes:
a first control unit 200 for controlling a rotational speed of the engine to a starting rotational speed upon receiving an engine start request;
an information obtaining unit 300 configured to obtain a current water temperature of the engine when the rotation speed reaches the start rotation speed;
the first determining unit 400 is configured to obtain at least two preset water temperature values, and set a preset rotation speed value according to each preset water temperature value;
a second determining unit 500, configured to gradually increase according to the preset water temperature value, where the preset rotation speed corresponding to the preset water temperature value with a high set temperature is smaller than the preset rotation speed corresponding to the preset water temperature value with a low set temperature;
an information determining unit 600, configured to determine whether the current water temperature value reaches the preset water temperature value;
the first execution unit 700 is configured to maintain the rotation speed unchanged when the current water temperature does not reach the preset water temperature value;
a second executing unit 800, configured to control the rotation speed to decrease to the corresponding preset rotation speed value when the current water temperature reaches the preset water temperature value.
As shown in fig. 3, the second execution unit 800 includes:
a third execution module 801, configured to maintain the rotation speed unchanged by maintaining the fuel injection amount of the engine when the current water temperature does not reach the preset water temperature value;
and a fourth executing module 802, configured to reduce the rotation speed to the corresponding preset rotation speed value by reducing the fuel injection amount of the engine when the current water temperature reaches the preset water temperature value.
Specifically, the engine idle speed control device is controlled based on the engine idle speed control method, and the engine speed can be reduced in a step mode by controlling the water temperature of the engine in the process of initiating combustion of the catalyst to the stable idle speed of the engine, so that the influence of uncertainty in the process of reducing the engine speed on speed fluctuation is reduced, the resonance of the engine speed passing through a vehicle body structure is avoided, the resonance time is reduced, irregular jitter is reduced, the comfort of a vehicle is improved, and the satisfaction of customers is improved.
Specifically, the engine idle speed control apparatus includes:
the system comprises an information acquisition device, an engine controller and a water temperature controller;
the engine controller is used for controlling the rotating speed of the engine to a starting rotating speed when receiving an engine starting request;
the information acquisition device is used for acquiring the current water temperature of the engine when the rotating speed reaches the starting rotating speed;
the water temperature controller is used for acquiring at least two preset water temperature values;
the engine controller is used for correspondingly setting a preset rotating speed value according to each preset water temperature value;
the engine controller is used for gradually increasing according to the preset water temperature value, and the preset rotating speed corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed corresponding to the preset water temperature value with low set temperature;
the water temperature controller is used for judging whether the current water temperature value reaches the pre-water temperature value or not;
the engine controller is used for maintaining the rotating speed unchanged when the current water temperature does not reach the preset water temperature value;
and the engine controller is used for controlling the rotating speed to be reduced to the corresponding preset rotating speed value when the current water temperature reaches the preset water temperature value.
Further, the engine idle speed control apparatus further includes:
the engine controller is used for keeping the rotating speed unchanged by maintaining the oil injection quantity of the engine when the current water temperature does not reach the preset water temperature value;
and the engine controller is used for reducing the rotating speed to the corresponding preset rotating speed value by reducing the oil injection quantity of the engine when the current water temperature reaches the preset water temperature value.
The embodiment provides an engine idling control method, device and equipment, which are characterized in that the working processes of a catalyst and an engine are reasonably planned by controlling the water temperature of the engine, so that the catalyst and the engine can reach ideal working temperatures, the phenomenon that the rotating speed of the engine is reduced too fast, the warming-up time is enough, the phenomenon that the temperature of the catalyst is insufficient, emission is increased, emission is reduced, and the economical efficiency of a vehicle is improved.
Example two
The second embodiment provides an engine idle speed control method, device and equipment.
Specifically, the engine idle speed control method includes:
s101, when an engine starting request is received, controlling the rotating speed of an engine to be a starting rotating speed;
s102, when the rotating speed reaches the starting rotating speed, obtaining the current water temperature of the engine;
s103, acquiring at least two preset water temperature values, correspondingly setting a preset rotating speed value according to each preset water temperature value, and setting the preset rotating speed value of the latter to be lower than the preset rotating speed value of the former;
s104, gradually increasing according to the preset water temperature value, wherein the preset rotating speed corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed corresponding to the preset water temperature value with low set temperature;
s105, judging whether the current water temperature value reaches the preset water temperature value or not;
s106, when the current water temperature does not reach the preset water temperature value, maintaining the rotating speed unchanged;
and S107, when the current water temperature reaches the preset water temperature value, controlling the rotating speed to be reduced to the corresponding preset rotating speed value.
Further, controlling the rotation speed to decrease to the corresponding preset rotation speed value comprises:
obtaining an error value of the preset water temperature value;
and controlling the current water temperature to be within the error value of the preset water temperature value according to the error value of the preset water temperature value, and reducing the rotating speed to the preset rotating speed value.
Specifically, the difference range of the preset water temperature value is 1-3 ℃.
Preferably, the difference between the preset water temperature values is 2 ℃.
Specifically, the starting rotating speed range is 1100rpm-1500 rpm.
Preferably, the starting speed is 1300 rpm.
Specifically, the initial temperature range of the current water temperature is 30 ℃ below zero to 10 ℃ below zero
Preferably, the starting temperature of the current water temperature is minus 20 ℃.
Preferably, the preset water temperature values include a first preset water temperature value, a second preset water temperature value and a third preset water temperature value, the first preset water temperature value is 20 ℃, the second preset water temperature value is 40 ℃, and the third preset water temperature value is 60 ℃.
Preferably, the preset rotating speed corresponding to the preset water temperature value comprises a first preset rotating speed and a second preset rotating speed;
the first preset rotating speed corresponds to the first preset water temperature value, and the first preset rotating speed is 1000 rpm;
the second preset rotating speed corresponds to the second preset water temperature value, and the second preset rotating speed is 800 rpm;
the third preset rotating speed corresponds to the second preset water temperature value, and the third preset rotating speed is 600 rpm.
Preferably, the rotation speed is controlled by the fuel injection amount of the engine.
Further, when the current water temperature does not reach the preset water temperature value, the rotating speed is kept unchanged by maintaining the oil injection quantity of the engine;
and when the current water temperature reaches the preset water temperature value, reducing the oil injection quantity of the engine to reduce the rotating speed to the corresponding preset rotating speed value.
Specifically, the engine idle speed control device includes:
a first control unit 200 for controlling a rotational speed of the engine to a starting rotational speed upon receiving an engine start request;
an information obtaining unit 300 configured to obtain a current water temperature of the engine when the rotation speed reaches the start rotation speed;
the first determining unit 400 is configured to obtain at least two preset water temperature values, and set a preset rotation speed value according to each preset water temperature value;
a second determining unit 500, configured to gradually increase according to the preset water temperature value, where the preset rotation speed corresponding to the preset water temperature value with a high set temperature is less than the preset rotation speed corresponding to the preset water temperature value with a low set temperature;
an information determining unit 600, configured to determine whether the current water temperature value reaches the preset water temperature value;
the first execution unit 700 is configured to maintain the rotation speed unchanged when the current water temperature does not reach the preset water temperature value;
a second executing unit 800, configured to control the rotation speed to decrease to the corresponding preset rotation speed value when the current water temperature reaches the preset water temperature value.
Specifically, the second execution unit 800 includes:
a third execution module 801, configured to maintain the rotation speed unchanged by maintaining the fuel injection amount of the engine when the current water temperature does not reach the preset water temperature value;
and a fourth executing module 802, configured to reduce the rotation speed to the corresponding preset rotation speed value by reducing the fuel injection amount of the engine when the current water temperature reaches the preset water temperature value.
Specifically, the engine idle speed control device is controlled based on the engine idle speed control method, and the engine speed can be reduced in a step mode by controlling the water temperature of the engine in the process of initiating combustion of the catalyst to the stable idle speed of the engine, so that the influence of uncertainty in the process of reducing the engine speed on speed fluctuation is reduced, the resonance of the engine speed passing through a vehicle body structure is avoided, the resonance time is reduced, irregular jitter is reduced, the comfort of a vehicle is improved, and the satisfaction of customers is improved.
Specifically, the engine idle speed control apparatus includes:
the system comprises an information acquisition device, an engine controller and a water temperature controller;
the engine controller is used for controlling the rotating speed of the engine to a starting rotating speed when receiving an engine starting request;
the information acquisition device is used for acquiring the current water temperature of the engine when the rotating speed reaches the starting rotating speed;
the water temperature controller is used for acquiring at least two preset water temperature values;
the engine controller is used for correspondingly setting a preset rotating speed value according to each preset water temperature value;
the engine controller is used for gradually increasing according to the preset water temperature value, and the preset rotating speed corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed corresponding to the preset water temperature value with low set temperature;
the water temperature controller is used for judging whether the current water temperature value reaches the pre-water temperature value or not;
the engine controller is used for maintaining the rotating speed unchanged when the current water temperature does not reach the preset water temperature value;
and the engine controller is used for controlling the rotating speed to be reduced to the corresponding preset rotating speed value when the current water temperature reaches the preset water temperature value.
Further, the engine idle speed control apparatus further includes:
the engine controller is used for keeping the rotating speed unchanged by maintaining the oil injection quantity of the engine when the current water temperature does not reach the preset water temperature value;
and the engine controller is used for reducing the rotating speed to the corresponding preset rotating speed value by reducing the oil injection quantity of the engine when the current water temperature reaches the preset water temperature value.
The second embodiment provides a gear shifting method for a hybrid vehicle, by controlling the water temperature of an engine, the engine speed is reduced in a step mode in the process of initiating combustion by a catalyst to the stable idling of the engine, the influence of uncertainty in the process of reducing the engine speed on speed fluctuation is reduced, the resonance of the engine speed passing through a vehicle body structure is avoided, the resonance time is reduced, irregular jitter is reduced, the comfort of the vehicle is improved, and the satisfaction of customers is improved.
It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as two series of acts, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Similarly, the modules of the engine idle speed control device are computer programs or program segments for performing one or more specific functions, and the distinction between the modules does not mean that the actual program codes are necessarily separated. Further, the above embodiments may be arbitrarily combined to obtain other embodiments.
In the foregoing embodiments, the descriptions of the embodiments have their respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described in detail in a certain embodiment. Those of skill in the art will further appreciate that the various illustrative logical blocks, units, and steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate the interchangeability of hardware and software, various illustrative components, elements, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims should not be limited to the description of the embodiments contained herein.
Claims (10)
1. An engine idle speed control method, characterized by comprising:
when an engine starting request is received, controlling the rotating speed of the engine to be a starting rotating speed;
when the rotating speed reaches the starting rotating speed, acquiring the current water temperature of the engine;
acquiring at least two preset water temperature values, and correspondingly setting a preset rotating speed value according to each preset water temperature value;
according to the gradual rise of the preset water temperature value, setting the preset rotating speed value corresponding to the preset water temperature value with high temperature to be smaller than the preset rotating speed value corresponding to the preset water temperature value with low temperature;
judging whether the current water temperature reaches the preset water temperature value or not;
when the current water temperature does not reach the preset water temperature value, the rotating speed is kept unchanged;
and when the current water temperature reaches the preset water temperature value, controlling the rotating speed to be reduced to the corresponding preset rotating speed value, and reducing the rotating speed in a step mode.
2. The engine idle speed control method of claim 1, wherein controlling the rotational speed to decrease to the corresponding preset rotational speed value comprises:
acquiring a difference value of the preset water temperature values;
and controlling the current water temperature to be within the difference value of the preset water temperature values according to the difference value of the preset water temperature values, and reducing the rotating speed to the preset rotating speed value.
3. The engine idle speed control method of claim 2, wherein the difference between the preset water temperature values is in a range of 1 ℃ to 3 ℃.
4. The engine idle speed control method of claim 1, wherein the cranking rotation speed is in a range of 1100rpm to 1500 rpm.
5. The engine idle speed control method of claim 1, wherein the starting temperature range of the current water temperature is from-30 ℃ below zero to-10 ℃.
6. The engine idle speed control method of claim 1, wherein the preset water temperature values include a first preset water temperature value and a second preset water temperature value, the first preset water temperature value is 25 ℃, and the second preset water temperature value is 60 ℃.
7. The engine idle speed control method of claim 6, wherein the preset rotation speed value corresponding to the preset water temperature value comprises a first preset rotation speed and a second preset rotation speed;
the first preset rotating speed corresponds to the first preset water temperature value, and the first preset rotating speed is 850 rpm;
the second preset rotating speed corresponds to the second preset water temperature value, and the second preset rotating speed is 700 rpm.
8. The engine idle speed control method of claim 1 wherein the speed is controlled by the amount of fuel injected into the engine.
9. An engine idle speed control device, characterized by comprising:
the first control unit is used for controlling the rotating speed of the engine to a starting rotating speed when receiving an engine starting request;
the information acquisition unit is used for acquiring the current water temperature of the engine when the rotating speed reaches the starting rotating speed;
the device comprises a first determining unit, a second determining unit and a control unit, wherein the first determining unit is used for acquiring at least two preset water temperature values and correspondingly setting a preset rotating speed value according to each preset water temperature value;
the second determining unit is used for gradually increasing according to the preset water temperature value, and the preset rotating speed value corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed value corresponding to the preset water temperature value with low set temperature;
the information judgment unit is used for judging whether the current water temperature reaches the preset water temperature value or not;
the first execution unit is used for keeping the rotating speed unchanged when the current water temperature does not reach the preset water temperature value;
and the second execution unit is used for controlling the rotating speed to be reduced to the corresponding preset rotating speed value when the current water temperature reaches the preset water temperature value, and the rotating speed is reduced in a step mode.
10. An engine idle speed control apparatus, characterized by comprising: the system comprises an information acquisition device, an engine controller and a water temperature controller;
the engine controller is used for controlling the rotating speed of the engine to a starting rotating speed when receiving an engine starting request;
the information acquisition device is used for acquiring the current water temperature of the engine when the rotating speed reaches the starting rotating speed;
the water temperature controller is used for acquiring at least two preset water temperature values;
the engine controller is used for correspondingly setting a preset rotating speed value according to each preset water temperature value;
the engine controller is used for gradually increasing according to the preset water temperature value, and the preset rotating speed value corresponding to the preset water temperature value with high set temperature is smaller than the preset rotating speed value corresponding to the preset water temperature value with low set temperature;
the water temperature controller is used for judging whether the current water temperature reaches the preset water temperature value or not;
the engine controller is used for maintaining the rotating speed unchanged when the current water temperature does not reach the preset water temperature value;
and the engine controller is used for controlling the rotating speed to be reduced to the corresponding preset rotating speed value when the current water temperature reaches the preset water temperature value, and the rotating speed is reduced in a step mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910312562.2A CN110159438B (en) | 2019-04-18 | 2019-04-18 | Engine idling control method, device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910312562.2A CN110159438B (en) | 2019-04-18 | 2019-04-18 | Engine idling control method, device and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159438A CN110159438A (en) | 2019-08-23 |
| CN110159438B true CN110159438B (en) | 2022-06-03 |
Family
ID=67639577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910312562.2A Active CN110159438B (en) | 2019-04-18 | 2019-04-18 | Engine idling control method, device and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159438B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443445A (en) * | 2019-09-03 | 2021-03-05 | 深圳臻宇新能源动力科技有限公司 | Vehicle and starting method and device of engine of vehicle |
| CN111550318B (en) * | 2020-03-31 | 2023-04-14 | 浙江吉利汽车研究院有限公司 | NVH (noise, vibration and harshness) performance adjusting method and device for hybrid vehicle, electronic equipment and storage medium |
| CN111894747A (en) * | 2020-07-14 | 2020-11-06 | 北京汽车股份有限公司 | Hybrid vehicle engine starting control method and system and hybrid vehicle |
| CN112283343B (en) * | 2020-10-23 | 2022-02-22 | 中国第一汽车股份有限公司 | Gear shifting control method of automatic transmission |
| CN112594074B (en) * | 2020-12-08 | 2022-11-29 | 长沙中联重科环境产业有限公司 | Control method and device, storage medium and equipment for auxiliary engine of special vehicle |
| CN112622869B (en) * | 2020-12-28 | 2022-08-23 | 潍柴动力股份有限公司 | Vehicle control method and device and vehicle |
| CN114368371B (en) * | 2022-01-05 | 2023-02-17 | 一汽解放汽车有限公司 | Braking power distribution method and device, computer equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013434A (en) * | 2000-06-30 | 2002-01-18 | Suzuki Motor Corp | Idling speed controller of internal combustion engine |
| JP2004143982A (en) * | 2002-10-23 | 2004-05-20 | Suzuki Motor Corp | Engine speed control device |
| JP2007064152A (en) * | 2005-09-01 | 2007-03-15 | Suzuki Motor Corp | Rotation speed control device for engine |
| CN102146849A (en) * | 2010-02-05 | 2011-08-10 | 广西玉柴机器股份有限公司 | Method and system for controlling idling of engine |
| CN102312736A (en) * | 2011-10-17 | 2012-01-11 | 奇瑞汽车股份有限公司 | Idling control method for engine of automobile |
| CN107701288A (en) * | 2017-09-29 | 2018-02-16 | 安徽江淮汽车集团股份有限公司 | A kind of temperature control system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7950368B2 (en) * | 2008-11-06 | 2011-05-31 | Ford Global Technologies, Llc | Engine and exhaust heating |
-
2019
- 2019-04-18 CN CN201910312562.2A patent/CN110159438B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013434A (en) * | 2000-06-30 | 2002-01-18 | Suzuki Motor Corp | Idling speed controller of internal combustion engine |
| JP2004143982A (en) * | 2002-10-23 | 2004-05-20 | Suzuki Motor Corp | Engine speed control device |
| JP2007064152A (en) * | 2005-09-01 | 2007-03-15 | Suzuki Motor Corp | Rotation speed control device for engine |
| CN102146849A (en) * | 2010-02-05 | 2011-08-10 | 广西玉柴机器股份有限公司 | Method and system for controlling idling of engine |
| CN102312736A (en) * | 2011-10-17 | 2012-01-11 | 奇瑞汽车股份有限公司 | Idling control method for engine of automobile |
| CN107701288A (en) * | 2017-09-29 | 2018-02-16 | 安徽江淮汽车集团股份有限公司 | A kind of temperature control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159438A (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110159438B (en) | Engine idling control method, device and equipment | |
| DE102009007882B4 (en) | Method and control module for reducing cold start emissions in hybrid vehicles | |
| US7913548B2 (en) | Determination of engine rotational speed based on change in current supplied to engine starter | |
| CN102777304B (en) | Automatic stop/restart device for internal combustion engine | |
| US10731619B2 (en) | Managing automatic stop/start frequency | |
| CN110530646B (en) | Engine detection and diagnosis method and device and range-extended electric vehicle | |
| KR100447345B1 (en) | Apparatus for controlling the stop of idle running of vehicle | |
| CN110103944B (en) | Engine starting method, device and equipment | |
| CN112523844B (en) | Intelligent control method and device for engine ignition, storage medium and equipment | |
| CN110645349B (en) | Double-clutch gear shifting control method, device and equipment for hybrid vehicle | |
| US11220157B2 (en) | Controller for engine and method for controlling engine | |
| EP2386744A1 (en) | Control device for vehicle | |
| CN112502808A (en) | Method for controlling oil pump of vehicle | |
| US20150211466A1 (en) | Systems and methods for optimization and control of internal combustion engine starting | |
| CN113006996B (en) | ISG dragging torque control method, device and unit of plug-in hybrid electric vehicle | |
| JP2004116517A (en) | Starting or stopping method for engine driven vehicle and its device | |
| EP2767448B1 (en) | Method and device to provide adaptive oil priming functionality | |
| CN109944705B (en) | Engine starting control method and device | |
| US9188070B2 (en) | Vehicle stop control system | |
| CN112477843B (en) | Torque distribution method, system, device and storage medium for hybrid vehicle | |
| US20160251013A1 (en) | Method for carrying out an engine function in an internal combustion engine | |
| JPH10169535A (en) | Starting controller for engine and hybrid electric vehicle using thereof | |
| WO2012146972A1 (en) | Control device and control method for internal combustion engine | |
| CN109681334B (en) | Control method and device for starting and stopping dual-fuel engine and vehicle | |
| CN115977817A (en) | Vehicle idle speed control method and device, server and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |