CN113266482B - Control method and control device for idle running of vehicle and terminal equipment - Google Patents
Control method and control device for idle running of vehicle and terminal equipment Download PDFInfo
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- CN113266482B CN113266482B CN202010097299.2A CN202010097299A CN113266482B CN 113266482 B CN113266482 B CN 113266482B CN 202010097299 A CN202010097299 A CN 202010097299A CN 113266482 B CN113266482 B CN 113266482B
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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
- F02D41/08—Introducing corrections for particular operating conditions for idling
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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
- 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
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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
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/086—Introducing corrections for particular operating conditions for idling taking into account the temperature of the engine
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/70—Input parameters for engine control said parameters being related to the vehicle exterior
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/70—Input parameters for engine control said parameters being related to the vehicle exterior
- F02D2200/701—Information about vehicle position, e.g. from navigation system or GPS signal
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- 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)
Abstract
The invention is applicable to the technical field of vehicle control, and provides a control method, a control device, terminal equipment and a computer readable storage medium for idle running of a vehicle, wherein the control method comprises the following steps: acquiring temperature information of a vehicle and altitude of a position of the vehicle; determining an idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table, wherein the idle speed parameter calibration table records different temperature information, different altitude and corresponding idle speed calibration parameters; and controlling the idle running of the vehicle based on the determined idle calibration parameters. The invention can solve the problems of rotation speed drop, flameout and the like of the vehicle engine under some special conditions, and is beneficial to ensuring the idle running stability of the vehicle under the special conditions and improving the driving experience.
Description
Technical Field
The invention belongs to the technical field of vehicle control, and particularly relates to a control method, a control device, terminal equipment and a computer readable storage medium for idle running of a vehicle.
Background
With the popularization of automatic transmission vehicles, people have increasingly high requirements on driving comfort. While an automatic-shift vehicle (such as CVT, AT, DCT) runs at idle speed (creep), the engine is in an idle speed control mode, and the vehicle is controlled to run against the resistance of the vehicle and the static friction between the tires and the ground.
Under normal conditions, the resistance of the vehicle and the static friction between the tire and the ground are not changed too much, and the influence of the external environment on the output torque of the engine is small.
However, under some special environmental conditions, such as high altitude, high temperature or low temperature conditions, the output torque of the vehicle engine can be reduced, and when the transmission is controlled under this scenario, if the same clutch engagement rate as that of the plain conditions is used to transmit larger torque and lower creep request idle speed, the load of the engine will be increased, so that the engine generates problems such as drop of rotation speed, even flameout and the like, and the driving experience of the user is affected.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide a control method, a control device, a terminal device, and a computer readable storage medium for idle running of a vehicle, so as to solve the problem that engine rotation speed drop and even flameout may occur during idle running of a vehicle under some special environmental conditions, and affect driving experience of a user.
A first aspect of an embodiment of the present invention provides a control method for idle running of a vehicle, including:
acquiring temperature information of a vehicle and altitude of a position of the vehicle;
determining an idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table, wherein the idle speed parameter calibration table records different temperature information, different altitude and corresponding idle speed calibration parameters;
and controlling the idle running of the vehicle based on the determined idle calibration parameters.
A second aspect of an embodiment of the present invention provides a control device for idling of a vehicle, the control device including:
an information acquisition unit for acquiring temperature information of the vehicle and altitude of a position where the vehicle is located;
the parameter calibration unit is used for determining an idle parameter of the vehicle based on the temperature information, the altitude and a preset idle parameter calibration table, wherein the idle parameter calibration table records different temperature information, different altitude and corresponding idle calibration parameters;
and the idle speed control unit is used for controlling the idle speed running of the vehicle based on the idle speed calibration parameters determined by the parameter calibration unit.
A third aspect of the embodiments of the present invention provides a terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the control method as described above when any one of the vehicles is idling, when the computer program is executed.
A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the control method of any one of the above vehicles at idle running.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
according to the invention, the idle speed parameter of the vehicle is determined by acquiring the temperature information of the vehicle and the altitude of the position of the vehicle, by recording different temperature information, different altitude and the idle speed parameter calibration table of the corresponding idle speed calibration parameter, and the idle speed running of the vehicle is controlled based on the determined idle speed calibration parameter; according to the invention, when the idle speed parameters of the vehicle in idle running are determined, the altitude of the position of the vehicle and the temperature information of the vehicle are considered, and the corresponding idle speed parameters are adopted to perform idle running under different temperature and altitude conditions, so that the problems of turning speed, flameout and the like of the engine under the special conditions can be solved, and the idle running stability of the vehicle under the special conditions and the driving experience can be guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a control method for idle running of a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control device for idle running of a vehicle according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
Fig. 1 shows a flowchart of a control method for idle running of a vehicle according to an embodiment of the present invention, which is described in detail below:
in step 101, temperature information of the vehicle and altitude of the location of the vehicle are acquired.
In an embodiment of the present invention, the temperature information of the vehicle may include an engine temperature of the vehicle and a transmission temperature of the vehicle.
In practical applications, the engine temperature of the vehicle has an influence on the idle speed value of the vehicle during idle running, the transmission temperature of the vehicle has an influence on the coupling speed of the clutch during idle running, and the engine temperature of the vehicle and the transmission temperature of the vehicle have an influence on the transmission torque of the clutch during idle running, so that the influence of two temperature information, namely the engine temperature and the transmission temperature, can be considered when determining the idle speed parameter of the vehicle during idle running.
In one embodiment, the engine temperature of the vehicle may be indicated by the intake air temperature of the vehicle engine, and the transmission temperature of the vehicle may be indicated by the oil temperature of the vehicle transmission.
In the embodiment of the invention, the altitude can be measured and obtained by an altitude measuring instrument configured by the vehicle, and also can be measured and obtained by an external altitude measuring instrument.
In step 102, an idle parameter of the vehicle is determined based on the temperature information, the altitude and a preset idle parameter calibration table, wherein the idle parameter calibration table records different temperature information, different altitude and corresponding idle parameter calibration parameters.
In an embodiment of the present invention, the idle calibration parameter may include a target idle value (idle request value) when the vehicle is idling, a target engagement rate of the vehicle clutch, and a target transmission torque of the vehicle clutch.
In the embodiment of the invention, different temperature information, different altitude and corresponding idle speed calibration parameters are recorded through the idle speed parameter calibration table, so that the corresponding idle speed calibration parameters can be obtained through a table look-up method based on the acquired temperature information and altitude.
Optionally, in one embodiment, the temperature information may include an ambient temperature and an engine temperature of the vehicle, the idle speed calibration parameter may include a target idle speed value of the vehicle when idling, and the idle speed parameter calibration table may include an idle speed value calibration table;
accordingly, the step 102 may include: and determining the target idle speed value based on the environment temperature, the altitude, the engine temperature and the idle speed value calibration table, wherein the idle speed value calibration table records the corresponding relation between the environment temperature, the altitude, the engine temperature and the target idle speed value.
In one embodiment, the idle value calibration table may include a first idle value calibration table and a second idle value calibration table; accordingly, the determining the target idle speed value based on the ambient temperature, the altitude, the engine temperature, and the target idle speed value calibration table may include:
determining a first idle speed value based on the ambient temperature, the altitude and the first idle speed calibration table, wherein the first idle speed calibration table records the corresponding relation between the ambient temperature, the altitude and the first idle speed value;
determining a second idle speed value based on the engine temperature, the altitude and the second idle speed calibration table, wherein the second idle speed calibration table records the corresponding relation of the engine temperature, the altitude and the second idle speed value;
and taking the larger idle speed value of the first idle speed value and the second idle speed value as the target idle speed value.
Among them, for the first idle calibration table, the following may be exemplified:
first idle calibration meter (ambient temperature: degree centigrade; altitude: meter)
| Ambient temperature/altitude | 0 | 2500 | 4000 | 5000 |
| -40 | ||||
| -20 | ||||
| 0 | ||||
| 20 |
As described in the above table, the altitude may be divided into 4 steps, the ambient temperature may be divided into 4 steps, and 16 first idle speed values may be corresponding in total, and the 16 first idle speed values may be obtained by performing a plurality of tests under the corresponding ambient temperature and altitude conditions (omitted from the table).
Among them, for the second idle speed calibration table, the following may be exemplified:
second idle calibration meter (engine temperature: degree centigrade; altitude: meter)
| Engine temperature/altitude | 0 | 2500 | 4000 | 5000 |
| 20 | ||||
| 40 | ||||
| 60 | ||||
| 80 |
As described in the above table, the altitude may be divided into 4 steps, the engine temperature may be divided into 4 steps, and 16 second idle speed values may be corresponding in total, and the 16 second idle speed values may be obtained by performing a plurality of tests under the corresponding engine temperature and altitude conditions (omitted from the table).
Alternatively, in one embodiment, the temperature information may include an engine temperature and a transmission temperature of the vehicle, the idle calibration parameter may include a target engagement rate of a clutch when the vehicle is idling, and the idle parameter calibration table may include an engagement rate calibration table;
accordingly, the step 102 may include: and determining the target combination rate based on the altitude, the engine temperature, the transmission temperature and the combination rate calibration table, wherein the combination rate calibration table records the corresponding relation of the altitude, the engine temperature, the transmission temperature and the combination rate calibration table.
In the embodiment of the invention, different altitudes, different engine temperatures, different transmission temperatures and corresponding combination rates are recorded through the combination rate calibration table, so that the corresponding combination rates can be obtained through a table look-up method based on the acquired altitudes, engine temperatures and transmission temperatures.
In one embodiment, the combining rate calibration table may include a first combining rate calibration table and a second combining rate calibration table; accordingly, the determining the target engagement rate based on the altitude, the engine temperature, the transmission temperature, and the idle parameter calibration table may include:
determining a first coupling rate based on the altitude, the transmission temperature, and the first coupling rate calibration table, wherein the first coupling rate calibration table records a correspondence of the altitude, the transmission temperature, and the first coupling rate;
determining a second combination rate based on the altitude, the engine temperature and the second combination rate calibration table, wherein the second combination rate calibration table records the corresponding relation between the altitude, the engine temperature and the second combination rate;
acquiring a third combination rate of a clutch of the vehicle under a plain working condition;
and taking the smallest binding rate among the first binding rate, the second binding rate and the third binding rate as the target binding rate.
Wherein, for the first combining rate calibration table, the following may be exemplified:
first combined rate calibration meter (Transmission temperature: degrees celsius; altitude: meters)
| Altitude/transmission temperature | -40 | 20 | 80 | 100 |
| 2000 | ||||
| 2500 | ||||
| 3000 | ||||
| 3500 | ||||
| 4000 | ||||
| 4500 | ||||
| 5000 |
As noted in the above table, altitude may be divided into 7 and transmission temperature into 4, which may correspond to 28 first engagement rates, which may be obtained by performing multiple tests under corresponding transmission temperature and altitude conditions (omitted from the table).
Wherein, for the second combining rate calibration table, the following may be exemplified:
second combined rate calibration meter (engine temperature: degrees celsius; altitude: meters)
| Altitude/engine temperature | 40 | 60 | 80 | 100 |
| 2000 | ||||
| 2500 | ||||
| 3000 | ||||
| 3500 | ||||
| 4000 | ||||
| 4500 | ||||
| 5000 |
As described in the above table, the altitude may be divided into 7 steps and the engine temperature into 4 steps, and 28 second binding rates may be corresponded in total, and the 28 second binding rates may be obtained by performing a plurality of tests under the corresponding engine temperature and altitude conditions (omitted from the table).
Optionally, the obtaining the third engagement rate of the clutch of the vehicle under the plain condition includes:
and determining a third combination rate based on the speed of the vehicle, the transmission temperature and a preset third combination rate calibration table, wherein the third combination rate calibration table records the corresponding relation of the speed, the transmission temperature and the third combination rate.
Among them, for the third combination rate calibration table, the following can be exemplified:
third combined rate calibration meter (vehicle speed: km/h; transmission temperature: degree celsius)
| Transmission temperature/vehicle speed | -5 | -4 | -2 | 0 | 1 | 2 | 3 | 4 | 5 |
| -40 | |||||||||
| 20 | |||||||||
| 80 | |||||||||
| 100 |
As described in the above table, the vehicle speed may be divided into 9 th gear and the transmission temperature may be divided into 4 th gear, and 36 third engagement rates may be corresponded in total, and these 36 third engagement rates may be obtained by performing a plurality of tests under the respective vehicle speed and transmission temperature conditions (omitted from the table).
Optionally, in one embodiment, the temperature information includes an engine temperature and a transmission temperature of the vehicle, the idle calibration parameter includes a target transmission torque of a clutch when the vehicle is idling, and the idle parameter calibration table includes a transmission torque calibration table;
correspondingly, the determining the idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table comprises: the target transfer torque is determined based on the altitude, the engine temperature, the transmission temperature, and the transfer torque calibration table. The transmission torque calibration table records the corresponding relation among the altitude, the engine temperature, the transmission temperature and the target transmission torque.
In the embodiment of the invention, different altitudes, different engine temperatures, different transmission temperatures and corresponding transmission torques are recorded through the transmission torque calibration table, so that the corresponding transmission torques can be obtained through a table look-up method based on the acquired altitudes, engine temperatures and transmission temperatures.
In one embodiment, the transfer torque calibration table comprises a first torque calibration table and a second torque calibration table; accordingly, the determining the target transfer torque based on the altitude, the engine temperature, and the transmission temperature includes:
determining a first transmission torque based on the altitude, the transmission temperature and the first torque calibration table, wherein the first torque calibration table records the corresponding relation between the altitude, the transmission temperature and the first transmission torque;
determining a second transmission torque based on the altitude, the engine temperature and the second torque calibration table, wherein the second torque calibration table records the corresponding relation between the altitude, the engine temperature and the second transmission torque;
and taking the larger transmission torque of the first transmission torque and the second transmission torque as the target transmission torque.
Among them, for the first transmission torque calibration table, the following can be exemplified:
first transfer torque calibration table (Transmission temperature: degrees Celsius; altitude: meters)
As noted in the above table, the altitude may be divided into 5 gears and the transmission temperature into 4 gears, and a total of 20 first transfer torques may be provided, which may be obtained by performing a plurality of tests under corresponding transmission temperature and altitude conditions (omitted from the table).
Among them, for the second transmission torque calibration table, the following can be exemplified:
first transfer torque calibration table (engine temperature: degrees celsius; altitude: meters)
| Altitude/engine temperature | 40 | 60 | 80 | 100 |
| 0 | ||||
| 1500 | ||||
| 2500 | ||||
| 3500 | ||||
| 5000 |
As noted in the above table, the altitude may be divided into 5 gears and the engine temperature into 4 gears, and a total of 20 second transfer torques may be provided, which may be obtained by performing a plurality of tests under corresponding transmission temperature and altitude conditions (omitted from the table).
In step 103, the idle running of the vehicle is controlled based on the determined idle calibration parameter.
According to the embodiment, in the idling running of the vehicle, the influence on idling control under the conditions of altitude, high temperature and low temperature cannot be considered in the conventional technology, the corresponding optimal idling parameters under various environmental conditions are obtained through the preliminary test, the idling parameter calibration table is manufactured, the corresponding idling parameters are obtained from the idling parameter calibration table according to the obtained environmental condition information in the idling running process of the vehicle, compared with the idling control method under the conventional plain working condition, the problems of idle speed increase of a driving gear, clutch engagement rate reduction, torque transmission, vehicle creep engine rotational speed dropping, vehicle extinction and the like caused by the torque attenuation of an engine under the conditions of altitude and high temperature and high low temperature load are solved, and the low-speed creep function of the vehicle is ensured.
According to the invention, the idle speed parameter of the vehicle is determined by acquiring the temperature information of the vehicle and the altitude of the position of the vehicle, by recording the idle speed parameter calibration table with different temperature information, different altitude and corresponding idle speed calibration parameters, and the idle speed running of the vehicle is controlled based on the determined idle speed calibration parameters; according to the invention, when the idle speed parameters of the vehicle in idle running are determined, the altitude of the position of the vehicle and the temperature information of the vehicle are considered, and the corresponding idle speed parameters are adopted to perform idle running under different temperature and altitude conditions, so that the problems of turning speed, flameout and the like of the engine under the special conditions can be solved, and the idle running stability of the vehicle under the special conditions and the driving experience can be guaranteed.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a control device for idle running of a vehicle according to an embodiment of the present invention, and for convenience of explanation, only a portion related to the embodiment of the present invention is shown, and the following details are given:
a control device 2 for idling of a vehicle, comprising: an information acquisition unit 21, a parameter calibration unit 22, and an idle speed control unit 23. Wherein:
an information acquisition unit 21 for acquiring temperature information of the vehicle and an altitude of a position where the vehicle is located;
a parameter calibration unit 22, configured to determine an idle parameter of the vehicle based on the temperature information, the altitude, and a preset idle parameter calibration table, where the idle parameter calibration table records different temperature information, different altitude, and corresponding idle calibration parameters;
and an idle speed control unit 23 for controlling the idle running of the vehicle based on the idle speed calibration parameters determined by the parameter calibration unit.
Optionally, the temperature information comprises an ambient temperature and an engine temperature of the vehicle, the idle speed calibration parameter comprises a target idle speed value when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises an idle speed value calibration table;
correspondingly, the parameter calibration unit 22 is also configured to: and determining the target idle speed value based on the environment temperature, the altitude, the engine temperature and the idle speed value calibration table, wherein the idle speed value calibration table records the corresponding relation between the environment temperature, the altitude, the engine temperature and the target idle speed value.
Optionally, the idle speed value calibration table comprises a first idle speed value calibration table and a second idle speed value calibration table;
accordingly, the control device 2 may further include:
the first idle speed value calibration unit is used for determining a first idle speed value based on the ambient temperature, the altitude and the first idle speed calibration table, wherein the first idle speed calibration table records the corresponding relation between the ambient temperature, the altitude and the first idle speed value;
the second idle speed value calibration unit is used for determining a second idle speed value based on the engine temperature, the altitude and the second idle speed calibration table, wherein the second idle speed calibration table records the corresponding relation of the engine temperature, the altitude and the second idle speed value;
the parameter calibration unit 22 is specifically configured to take the larger idle speed value of the first idle speed value and the second idle speed value as the target idle speed value.
Optionally, the temperature information includes an engine temperature and a transmission temperature of the vehicle, the idle calibration parameter includes a target engagement rate of a clutch when the vehicle is idling, and the idle parameter calibration table includes an engagement rate calibration table;
correspondingly, the parameter calibration unit 22 is further configured to determine the target coupling rate based on the altitude, the engine temperature, the transmission temperature, and the coupling rate calibration table, where the coupling rate calibration table records a correspondence between the altitude, the engine temperature, the transmission temperature, and the coupling rate calibration table.
Optionally, the combination rate calibration table comprises a first combination rate calibration table and a second combination rate calibration table; accordingly, the control device 2 may further include:
a first combination rate calibration unit configured to determine a first combination rate based on the altitude, the transmission temperature, and the first combination rate calibration table, where the first combination rate calibration table records a correspondence between the altitude, the transmission temperature, and the first combination rate;
a second combination rate calibration unit, configured to determine a second combination rate based on the altitude, the engine temperature, and the second combination rate calibration table, where the second combination rate calibration table records a correspondence between the altitude, the engine temperature, and the second combination rate;
the third combination rate acquisition unit is used for acquiring the third combination rate of the clutch of the vehicle under the plain working condition;
correspondingly, the parameter calibration unit 22 is specifically further configured to take as the target binding rate the smallest binding rate among the first binding rate, the second binding rate and the third binding rate.
Optionally, the third combination rate obtaining unit is specifically configured to determine the third combination rate based on a speed of the vehicle, the transmission temperature, and a preset third combination rate calibration table, where the third combination rate calibration table records a correspondence relationship between the speed of the vehicle, the transmission temperature, and the third combination rate.
Optionally, the temperature information comprises an engine temperature and a transmission temperature of the vehicle, the idle calibration parameter comprises a target transmission torque of a clutch when the vehicle runs at idle speed, and the idle parameter calibration table comprises a transmission torque calibration table;
accordingly, the parameter calibration unit 22 is further configured to determine the target transmission torque based on the altitude, the engine temperature, the transmission temperature, and the idle parameter calibration table, where the transmission torque calibration table records a correspondence relationship between the altitude, the engine temperature, the transmission temperature, and the target transmission torque.
Optionally, the transmission torque calibration table comprises a first torque calibration table and a second torque calibration table;
accordingly, the control device 2 may further include:
a first torque calibration unit configured to determine a first transmission torque based on the altitude, the transmission temperature, and the first torque calibration table, where the first torque calibration table records a correspondence between the altitude, the transmission temperature, and the first transmission torque;
the second torque calibration unit is used for determining a second transmission torque based on the altitude, the engine temperature and the second torque calibration table, wherein the second torque calibration table records the corresponding relation between the altitude, the engine temperature and the second transmission torque;
correspondingly, the parameter calibration unit 22 is specifically further configured to take the larger of the first transmission torque and the second transmission torque as the target transmission torque.
According to the invention, the idle speed parameter of the vehicle is determined by acquiring the temperature information of the vehicle and the altitude of the position of the vehicle, by recording the idle speed parameter calibration table with different temperature information, different altitude and corresponding idle speed calibration parameters, and the idle speed running of the vehicle is controlled based on the determined idle speed calibration parameters; according to the invention, when the idle speed parameters of the vehicle in idle running are determined, the altitude of the position of the vehicle and the temperature information of the vehicle are considered, and the corresponding idle speed parameters are adopted to perform idle running under different temperature and altitude conditions, so that the problems of turning speed, flameout and the like of the engine under the special conditions can be solved, and the idle running stability of the vehicle under the special conditions and the driving experience can be guaranteed.
The terminal device 3 may be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server, etc. The terminal device may include, but is not limited to, a processor 30, a memory 31. It will be appreciated by those skilled in the art that fig. 3 is merely an example of the terminal device 3 and does not constitute a limitation of the terminal device 3, and may include more or less components than illustrated, or may combine certain components, or different components, e.g., the terminal device may further include an input-output device, a network access device, a bus, etc.
The processor 30 may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be an internal storage unit of the terminal device 3, such as a hard disk or a memory of the terminal device 3. The memory 31 may be an external storage device of the terminal device 3, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the terminal device 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the terminal device 3. The memory 31 is used for storing the computer program as well as other programs and data required by the terminal device. The memory 31 may also be used for temporarily storing data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. 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 invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other manners. For example, the apparatus/terminal device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium may include content that is subject to appropriate increases and decreases as required by jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is not included as electrical carrier signals and telecommunication signals.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (6)
1. A control method for idling of a vehicle, the control method comprising:
acquiring temperature information of a vehicle and altitude of a position of the vehicle;
determining an idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table, wherein the idle speed parameter calibration table records different temperature information, different altitude and corresponding idle speed calibration parameters;
controlling the idle running of the vehicle based on the determined idle calibration parameters;
the temperature information comprises an ambient temperature and an engine temperature of the vehicle, the idle speed calibration parameters comprise a target idle speed value when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises an idle speed value calibration table; correspondingly, the determining the idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table comprises: determining the target idle speed value based on the environment temperature, the altitude, the engine temperature and the idle speed value calibration table, wherein the idle speed value calibration table records the corresponding relation between the environment temperature, the altitude, the engine temperature and the target idle speed value;
the idle speed value calibration table comprises a first idle speed value calibration table and a second idle speed value calibration table;
accordingly, the determining the target idle speed value based on the ambient temperature, the altitude, the engine temperature, and the idle speed value calibration table includes:
determining a first idle speed value based on the ambient temperature, the altitude and the first idle speed value calibration table, wherein the first idle speed value calibration table records the corresponding relation between the ambient temperature, the altitude and the first idle speed value;
determining a second idle speed value based on the engine temperature, the altitude and the second idle speed value calibration table, wherein the second idle speed value calibration table records the corresponding relation between the engine temperature, the altitude and the second idle speed value;
taking the larger idle speed value of the first idle speed value and the second idle speed value as the target idle speed value;
or (b)
The temperature information comprises the engine temperature and the transmission temperature of the vehicle, the idle speed calibration parameters comprise the target combination rate of the clutch when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises a combination rate calibration table; correspondingly, the determining the idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table comprises: determining the target coupling rate based on the altitude, the engine temperature, the transmission temperature, and the coupling rate calibration table, wherein the coupling rate calibration table records correspondence of the altitude, the engine temperature, the transmission temperature, and the target coupling rate;
or (b)
The temperature information comprises the engine temperature and the transmission temperature of the vehicle, the idle speed calibration parameters comprise the target transmission torque of the clutch when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises a transmission torque calibration table; correspondingly, the determining the idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table comprises: determining the target transmission torque based on the altitude, the engine temperature, the transmission temperature and the transmission torque calibration table, wherein the transmission torque calibration table records the corresponding relation between the altitude, the engine temperature, the transmission temperature and the target transmission torque;
the transmission torque calibration table comprises a first torque calibration table and a second torque calibration table;
accordingly, the determining the target transfer torque based on the altitude, the engine temperature, the transmission temperature, and the transfer torque calibration table includes:
determining a first transmission torque based on the altitude, the transmission temperature and the first torque calibration table, wherein the first torque calibration table records the corresponding relation between the altitude, the transmission temperature and the first transmission torque;
determining a second transmission torque based on the altitude, the engine temperature and the second torque calibration table, wherein the second torque calibration table records the corresponding relation between the altitude, the engine temperature and the second transmission torque;
and taking the larger transmission torque of the first transmission torque and the second transmission torque as the target transmission torque.
2. The control method for idling of a vehicle according to claim 1, wherein the combination rate calibration table includes a first combination rate calibration table and a second combination rate calibration table;
accordingly, the determining the target engagement rate based on the altitude, the engine temperature, the transmission temperature, and the engagement rate calibration table comprises:
determining a first coupling rate based on the altitude, the transmission temperature, and the first coupling rate calibration table, wherein the first coupling rate calibration table records a correspondence of the altitude, the transmission temperature, and the first coupling rate;
determining a second combination rate based on the altitude, the engine temperature and the second combination rate calibration table, wherein the second combination rate calibration table records the corresponding relation between the altitude, the engine temperature and the second combination rate;
acquiring a third combination rate of a clutch of the vehicle under a plain working condition;
and taking the smallest binding rate among the first binding rate, the second binding rate and the third binding rate as the target binding rate.
3. The method for controlling the idle running of the vehicle according to claim 2, wherein the obtaining the third engagement rate of the clutch of the vehicle under the plain condition includes:
and determining a third combination rate based on the speed of the vehicle, the transmission temperature and a preset third combination rate calibration table, wherein the third combination rate calibration table records the corresponding relation of the speed, the transmission temperature and the third combination rate.
4. A control device for idling of a vehicle, the control device comprising:
an information acquisition unit for acquiring temperature information of the vehicle and altitude of a position where the vehicle is located;
the parameter calibration unit is used for determining an idle parameter of the vehicle based on the temperature information, the altitude and a preset idle parameter calibration table, wherein the idle parameter calibration table records different temperature information, different altitude and corresponding idle calibration parameters;
the idling control unit is used for controlling the idling running of the vehicle based on the idling calibration parameters determined by the parameter calibration unit;
the temperature information comprises an ambient temperature and an engine temperature of the vehicle, the idle speed calibration parameters comprise a target idle speed value when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises an idle speed value calibration table; correspondingly, the parameter calibration unit is specifically configured to: determining the target idle speed value based on the environment temperature, the altitude, the engine temperature and the idle speed value calibration table, wherein the idle speed value calibration table records the corresponding relation between the environment temperature, the altitude, the engine temperature and the target idle speed value; the idle speed value calibration table comprises a first idle speed value calibration table and a second idle speed value calibration table;
accordingly, the determining the target idle speed value based on the ambient temperature, the altitude, the engine temperature, and the idle speed value calibration table includes:
determining a first idle speed value based on the ambient temperature, the altitude and the first idle speed value calibration table, wherein the first idle speed value calibration table records the corresponding relation between the ambient temperature, the altitude and the first idle speed value;
determining a second idle speed value based on the engine temperature, the altitude and the second idle speed value calibration table, wherein the second idle speed value calibration table records the corresponding relation between the engine temperature, the altitude and the second idle speed value;
taking the larger idle speed value of the first idle speed value and the second idle speed value as the target idle speed value;
or (b)
The temperature information comprises the engine temperature and the transmission temperature of the vehicle, the idle speed calibration parameters comprise the target combination rate of the clutch when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises a combination rate calibration table; correspondingly, the parameter calibration unit is specifically configured to: determining the target coupling rate based on the altitude, the engine temperature, the transmission temperature, and the coupling rate calibration table, wherein the coupling rate calibration table records correspondence of the altitude, the engine temperature, the transmission temperature, and the target coupling rate;
or (b)
The temperature information comprises the engine temperature and the transmission temperature of the vehicle, the idle speed calibration parameters comprise the target transmission torque of the clutch when the vehicle runs at idle speed, and the idle speed parameter calibration table comprises a transmission torque calibration table; correspondingly, the parameter calibration unit is specifically configured to: determining the target transmission torque based on the altitude, the engine temperature, the transmission temperature and the transmission torque calibration table, wherein the transmission torque calibration table records the corresponding relation between the altitude, the engine temperature, the transmission temperature and the target transmission torque;
the transmission torque calibration table comprises a first torque calibration table and a second torque calibration table;
accordingly, the determining the target transfer torque based on the altitude, the engine temperature, the transmission temperature, and the transfer torque calibration table includes:
determining a first transmission torque based on the altitude, the transmission temperature and the first torque calibration table, wherein the first torque calibration table records the corresponding relation between the altitude, the transmission temperature and the first transmission torque;
determining a second transmission torque based on the altitude, the engine temperature and the second torque calibration table, wherein the second torque calibration table records the corresponding relation between the altitude, the engine temperature and the second transmission torque;
and taking the larger transmission torque of the first transmission torque and the second transmission torque as the target transmission torque.
5. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, realizes the steps of the control method of the vehicle at idle running according to any one of claims 1 to 3.
6. A computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the control method of the vehicle at idle running according to any one of claims 1 to 3.
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| CN202010097299.2A CN113266482B (en) | 2020-02-17 | 2020-02-17 | Control method and control device for idle running of vehicle and terminal equipment |
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| CN202010097299.2A CN113266482B (en) | 2020-02-17 | 2020-02-17 | Control method and control device for idle running of vehicle and terminal equipment |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621590B2 (en) * | 1984-12-11 | 1994-03-23 | 日本電装株式会社 | Internal combustion engine controller |
| KR20050068951A (en) * | 2003-12-30 | 2005-07-05 | 현대자동차주식회사 | Method of controlling starting performance and idle for vehicle |
| CN103410624A (en) * | 2013-07-26 | 2013-11-27 | 联合汽车电子有限公司 | Start assisting system for manual-gear vehicles |
| CN104196643B (en) * | 2014-08-29 | 2016-08-17 | 安徽江淮汽车股份有限公司 | A kind of Eng ine Idling Control method and system |
| CN107435596A (en) * | 2016-05-27 | 2017-12-05 | 长城汽车股份有限公司 | Control method, control system and the vehicle of vehicle |
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