CN113266482A - Control method and control device for idling of vehicle and terminal equipment - Google Patents
Control method and control device for idling of vehicle and terminal equipment Download PDFInfo
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- CN113266482A CN113266482A CN202010097299.2A CN202010097299A CN113266482A CN 113266482 A CN113266482 A CN 113266482A CN 202010097299 A CN202010097299 A CN 202010097299A CN 113266482 A CN113266482 A CN 113266482A
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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 suitable for the technical field of vehicle control, and provides a control method, a control device, terminal equipment and a computer readable storage medium for vehicle idle running, wherein the control method comprises the following steps: acquiring temperature information of a vehicle and the altitude of the 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 altitudes and corresponding idle speed calibration parameters; and controlling the vehicle to run at the idle speed based on the determined idle speed calibration parameters. The invention can solve the problems of rotating 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 higher and higher requirements on driving comfort. When the automatic transmission vehicle (such as CVT, AT, DCT and the like) runs AT idle speed (creeps), the engine is in an idle speed control mode, and the vehicle is controlled to run by overcoming the resistance of the vehicle and the static friction force between tires and the ground.
Under the conventional conditions, the resistance of the vehicle and the static friction force between the tires 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 plateau, high temperature or low temperature conditions, the output torque of the vehicle engine may be reduced, and when the transmission is controlled under such a scenario, if the same clutch engagement rate as that of the plain condition is used to transmit a larger torque and a lower creep request idle speed, the load of the engine may be increased, which may cause the engine to have problems such as a drop in the rotation speed, even a stall, and the like, and may affect the driving experience of the user.
Disclosure of Invention
In view of this, embodiments of the present invention provide a control method, a control device, a terminal device and a computer-readable storage medium for a vehicle during idle driving, so as to solve the problem that driving experience of a user is affected due to a drop in engine speed or even a misfire that may occur during idle driving of the vehicle under some special environmental conditions.
A first aspect of an embodiment of the present invention provides a control method when a vehicle runs at an idle speed, including:
acquiring temperature information of a vehicle and the altitude of the 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 altitudes and corresponding idle speed calibration parameters;
and controlling the vehicle to run at the idle speed based on the determined idle speed calibration parameters.
A second aspect of the embodiments of the invention provides a control apparatus when a vehicle runs at idle, the control apparatus including:
the information acquisition unit is used for acquiring the temperature information of the vehicle and the altitude of the position where the vehicle is located;
the parameter calibration unit is used for determining the 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 altitudes and corresponding idle speed calibration parameters;
and the idle speed control unit is used for controlling the idle speed of the vehicle to run 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, including 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 when the vehicle runs at idle speed as described above when executing the computer program.
A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the control method when a vehicle runs at idle as in any one of the above.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the method, the temperature information of the vehicle and the altitude of the position of the vehicle are obtained, the idle speed parameter of the vehicle is determined through an idle speed parameter calibration table which records different temperature information, different altitudes and corresponding idle speed calibration parameters, and the vehicle is controlled to run at an idle speed based on the determined idle speed calibration parameter; according to the method and the device, the altitude of the position of the vehicle and the temperature information of the vehicle are considered when the idling parameter of the vehicle during idling driving is determined, the corresponding idling parameter is adopted to perform idling driving under the conditions of different temperatures and altitudes, the problems of possible rotating speed drop, flameout and the like of an engine under special conditions can be solved, and the method and the device are favorable for guaranteeing the idling driving stability of the vehicle under the special conditions and improving the driving experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a flowchart of a control method for idling a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a control device for idling 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 particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the 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 explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a flowchart illustrating a control method for idle driving of a vehicle according to an embodiment of the present invention, which is described in detail as follows:
in step 101, temperature information of a vehicle and an altitude of a location where the vehicle is located 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 application, the engine temperature of the vehicle has an influence on an idle speed value when the vehicle runs at idle speed, the transmission temperature of the vehicle has an influence on the coupling rate of the clutch when the vehicle runs at idle speed, and both the engine temperature of the vehicle and the transmission temperature of the vehicle have an influence on the transmission torque of the clutch when the vehicle runs at idle speed, so that the influence generated by two temperature information, namely the engine temperature and the transmission temperature, can be considered when determining the idle speed parameter when the vehicle runs at idle speed.
In one embodiment, the engine temperature of the vehicle may be indicated by an intake air temperature of the vehicle engine and the transmission temperature of the vehicle may be indicated by an oil temperature of the vehicle transmission.
In the embodiment of the present invention, the altitude may be measured by an altitude measurement instrument configured in the vehicle itself, or may be measured by an external altitude measurement instrument.
In step 102, an idle speed parameter of the vehicle is determined 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 altitudes and corresponding idle speed calibration parameters.
In an embodiment of the present invention, the idle calibration parameters may include a target idle value (idle request value) when the vehicle is idle running, a target engagement rate of the vehicle clutch, and a target transfer torque of the vehicle clutch.
In the embodiment of the invention, different temperature information, different altitudes and corresponding idle speed calibration parameters are recorded through the idle speed parameter calibration table, and then the corresponding idle speed calibration parameters can be obtained through a table look-up method based on the obtained temperature information and the altitude.
Optionally, in an embodiment, the temperature information may include an ambient temperature and an engine temperature of the vehicle, the idle calibration parameter may include a target idle value when the vehicle runs at idle, and the idle parameter calibration table may include an idle 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 value based on the ambient temperature, the altitude, the engine temperature, and the target idle value calibration table may include:
determining a first idle speed value based on the environment temperature, the altitude and the first idle speed calibration table, wherein the first idle speed calibration table records the corresponding relation between the environment 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 a corresponding relation between 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.
Wherein, for the first idle speed calibration table, the following can be exemplified:
first idle speed calibration meter (ambient temperature: centigrade; altitude: rice)
| Ambient temperature/altitude | 0 | 2500 | 4000 | 5000 |
| -40 | ||||
| -20 | ||||
| 0 | ||||
| 20 |
As described above, the altitude may be divided into 4 steps, and the ambient temperature may be divided into 4 steps, which may correspond to 16 first idle speed values, and the 16 first idle speed values may be obtained through a plurality of tests under the corresponding ambient temperature and altitude conditions (omitted from the table).
Wherein, for the second idle speed calibration table, the following can be exemplified:
second idle speed calibration meter (Engine temperature: centigrade; altitude: meter)
| Engine temperature/altitude | 0 | 2500 | 4000 | 5000 |
| 20 | ||||
| 40 | ||||
| 60 | ||||
| 80 |
As described above, the altitude may be divided into 4 steps, the engine temperature may be divided into 4 steps, and a total of 16 second idle speed values may be obtained through a plurality of tests under the corresponding engine temperature and altitude conditions (omitted from the table).
Optionally, in one embodiment, the temperature information may include an engine temperature and a transmission temperature of the vehicle, the idle calibration parameters may include a target engagement rate of the clutch while the vehicle is idling, and the idle parameter calibration table may include an engagement rate calibration table;
accordingly, the step 102 may include: determining the target bonding rate based on the altitude, the engine temperature, the transmission temperature and the bonding rate calibration table, wherein the bonding rate calibration table records the corresponding relation of the altitude, the engine temperature, the transmission temperature and the bonding rate calibration table.
In the embodiment of the invention, different altitudes, different engine temperatures, different transmission temperatures and corresponding combination rates are recorded by combining the rate calibration table, and then the corresponding combination rates can be obtained by a table look-up method based on the acquired altitude, the acquired engine temperatures and the acquired transmission temperatures.
In one embodiment, the combined rate calibration table may include a first combined rate calibration table and a second combined rate calibration table; accordingly, the determining the target binding rate based on the altitude, the engine temperature, the transmission temperature, and the idle parameter calibration table may comprise:
determining a first combined rate based on the altitude, the transmission temperature and the first combined rate calibration table, wherein the first combined rate calibration table records the corresponding relation between the altitude, the transmission temperature and the first combined rate;
determining a second integration rate based on the altitude, the engine temperature and the second integration rate calibration table, wherein the second integration rate calibration table records the corresponding relationship between the altitude, the engine temperature and the second integration rate;
acquiring a third combination rate of the clutch of the vehicle under the working condition of the plain;
taking a minimum binding rate of the first, second, and third binding rates as the target binding rate.
Wherein, for the first combined rate calibration table, the following can be exemplified:
first combination rate calibration meter (Transmission temperature: Celsius; altitude: meter)
| Altitude \ transmission temperature | -40 | 20 | 80 | 100 |
| 2000 | ||||
| 2500 | ||||
| 3000 | ||||
| 3500 | ||||
| 4000 | ||||
| 4500 | ||||
| 5000 |
As described above, the altitude can be divided into 7 steps and the transmission temperature can be divided into 4 steps, which correspond to 28 first engagement rates, and the 28 first engagement rates can be obtained by performing a plurality of tests under the conditions of the corresponding transmission temperature and altitude (omitted from the table).
Wherein, for the second combination rate calibration table, the following can be exemplified:
second binding rate calibration meter (Engine temperature: centigrade; altitude: meter)
| Altitude \ engine temperature | 40 | 60 | 80 | 100 |
| 2000 | ||||
| 2500 | ||||
| 3000 | ||||
| 3500 | ||||
| 4000 | ||||
| 4500 | ||||
| 5000 |
As described above, the altitude can be divided into 7 steps and the engine temperature can be divided into 4 steps, which correspond to 28 second engagement rates, and the 28 second engagement rates can be obtained by performing a plurality of tests under the corresponding engine temperature and altitude conditions (omitted from the table).
Optionally, the obtaining a third engagement rate of the clutch of the vehicle under the plain condition includes:
and determining the third combination rate based on the vehicle 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 between the vehicle speed, the transmission temperature and the third combination rate.
Among them, for the third binding rate calibration table, the following can be exemplified:
third combination rate calibration meter (vehicle speed: kilometer per hour; transmission temperature: centigrade)
| Transmission temperature/vehicle speed | -5 | -4 | -2 | 0 | 1 | 2 | 3 | 4 | 5 |
| -40 | |||||||||
| 20 | |||||||||
| 80 | |||||||||
| 100 |
As described above, the vehicle speed may be divided into 9 steps and the transmission temperature may be divided into 4 steps, which correspond to 36 third engagement rates, and the 36 third engagement rates may be obtained by performing a plurality of tests under the corresponding 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 the clutch when the vehicle runs at idle, 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: determining the target transfer torque based on the altitude, the engine temperature, the transmission temperature, and the transfer torque calibration table. And the transmission torque calibration table records the corresponding relation between 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, and then the corresponding transmission torques can be obtained through a table look-up method based on the acquired altitudes, the acquired engine temperatures and the acquired transmission temperatures.
In one embodiment, the transfer torque calibration table includes 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 comprises:
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;
the larger one of the first transfer torque and the second transfer torque is taken as the target transfer torque.
Among these, for the first transfer torque calibration table, the following can be exemplified:
first transmission torque calibration meter (transmission temperature: centigrade; altitude: meter)
As described above, the altitude can be divided into 5 steps and the transmission temperature can be divided into 4 steps, which correspond to 20 first transmission torques, and the 20 first transmission torques can be obtained by performing a plurality of tests under the conditions of the corresponding transmission temperature and altitude (omitted from the table).
Among these, for the second transmission torque calibration table, the following can be exemplified:
first transmission torque calibration meter (Engine temperature: centigrade; altitude: meter)
| Altitude \ engine temperature | 40 | 60 | 80 | 100 |
| 0 | ||||
| 1500 | ||||
| 2500 | ||||
| 3500 | ||||
| 5000 |
As described above, the altitude can be divided into 5 steps and the engine temperature can be divided into 4 steps, which correspond to 20 second transmission torques, and the 20 second transmission torques can be obtained through a plurality of tests under the conditions of the corresponding transmission temperature and altitude (omitted from the table).
And step 103, controlling the vehicle to run at an idle speed based on the determined idle speed calibration parameters.
According to the embodiment, the influence of the idling control under the environments of plateau (determined by the altitude), high temperature and low temperature cannot be generally considered in the idling driving in the traditional technology, the corresponding optimal idling parameters under various environmental conditions are obtained through pre-tests, 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 process of the idling driving of the vehicle, and compared with an idling control method under the conventional plain working condition, the idling of a driving gear is improved, the engaging rate of a clutch is reduced, and the transmission torque is reduced, so that the problems of the engine such as the torque attenuation of the engine under the working conditions of plateau and high temperature and the engine stall, flameout and the like caused by large low-temperature load are solved, and the low-speed creeping function of the vehicle is ensured.
According to the method, the temperature information of the vehicle and the altitude of the position of the vehicle are obtained, the idle speed parameter of the vehicle is determined through the idle speed parameter calibration table which records different temperature information, different altitudes and corresponding idle speed calibration parameters, and the vehicle is controlled to run at the idle speed based on the determined idle speed calibration parameter; according to the method and the device, the altitude of the position of the vehicle and the temperature information of the vehicle are considered when the idling parameter of the vehicle during idling driving is determined, the corresponding idling parameter is adopted to perform idling driving under the conditions of different temperatures and altitudes, the problems of possible rotating speed drop, flameout and the like of an engine under special conditions can be solved, and the method and the device are favorable for guaranteeing the idling driving stability of the vehicle under the special conditions and improving the driving experience.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Fig. 2 is a schematic structural diagram of a control device for idle driving of a vehicle according to an embodiment of the present invention, and for convenience of description, only the portions related to the embodiment of the present invention are shown, and detailed descriptions are as follows:
a control device 2 for idling of a vehicle includes: 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;
the parameter calibration unit 22 is configured to determine an idle speed parameter of the vehicle based on the temperature information, the altitude and a preset idle speed parameter calibration table, where the idle speed parameter calibration table records different temperature information, different altitudes and corresponding idle speed calibration parameters;
and the idle speed control unit 23 is used for controlling the vehicle to run at an idle speed based on the idle speed calibration parameters determined by the parameter calibration unit.
Optionally, the temperature information includes an ambient temperature and an engine temperature of the vehicle, the idle speed calibration parameter includes a target idle speed value of the vehicle during idle speed driving, and the idle speed parameter calibration table includes an idle speed value calibration table;
correspondingly, the parameter calibration unit 22 is further 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 value calibration table includes a first idle value calibration table and a second idle 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 environment temperature, the altitude and the first idle speed calibration table, wherein the first idle speed calibration table records the corresponding relation between the environment 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 a second idle speed calibration table, wherein the second idle speed calibration table records the corresponding relation between the engine temperature, the altitude and the second idle speed value;
the parameter calibration unit 22 is specifically configured to use the larger idle value of the first idle value and the second idle value as the target idle value.
Optionally, the temperature information includes an engine temperature and a transmission temperature of the vehicle, the idle speed calibration parameter includes a target engagement rate of the clutch when the vehicle runs at idle speed, and the idle speed 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, wherein the coupling rate calibration table records a corresponding relationship among the altitude, the engine temperature, the transmission temperature, and the coupling rate calibration table.
Optionally, the combined rate calibration table includes a first combined rate calibration table and a second combined 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 corresponding relationship 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 a second combination rate calibration table, where the second combination rate calibration table records a corresponding relationship between the altitude, the engine temperature, and the second combination rate;
the third combination rate acquiring unit is used for acquiring a third combination rate of the clutch of the vehicle under the plain working condition;
correspondingly, the parameter calibration unit 22 is further specifically configured to use a minimum binding rate of the first binding rate, the second binding rate, and the third binding rate as the target binding rate.
Optionally, the third coupling rate obtaining unit is specifically configured to determine the third coupling rate based on the vehicle speed of the vehicle, the transmission temperature, and a preset third coupling rate calibration table, where the third coupling rate calibration table records a corresponding relationship between the vehicle speed, the transmission temperature, and the third coupling rate.
Optionally, the temperature information includes an engine temperature and a transmission temperature of the vehicle, the idle speed calibration parameter includes a target transmission torque of the clutch when the vehicle runs at idle speed, and the idle speed parameter calibration table includes a transmission torque calibration table;
correspondingly, 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, wherein the transmission torque calibration table records a corresponding relationship between the altitude, the engine temperature, the transmission temperature and the target transmission torque.
Optionally, the transmission torque calibration table includes 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 corresponding relationship 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;
accordingly, the parameter calibration unit 22 is further configured to use the larger one of the first and second transmission torques as the target transmission torque.
According to the method, the temperature information of the vehicle and the altitude of the position of the vehicle are obtained, the idle speed parameter of the vehicle is determined through the idle speed parameter calibration table which records different temperature information, different altitudes and corresponding idle speed calibration parameters, and the vehicle is controlled to run at the idle speed based on the determined idle speed calibration parameter; according to the method and the device, the altitude of the position of the vehicle and the temperature information of the vehicle are considered when the idling parameter of the vehicle during idling driving is determined, the corresponding idling parameter is adopted to perform idling driving under the conditions of different temperatures and altitudes, the problems of possible rotating speed drop, flameout and the like of an engine under special conditions can be solved, and the method and the device are favorable for guaranteeing the idling driving stability of the vehicle under the special conditions and improving the driving experience.
The terminal device 3 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 30, a memory 31. It will be understood by those skilled in the art that fig. 3 is only an example of the terminal device 3, and does not constitute a limitation to the terminal device 3, and may include more or less components than those shown, or combine some components, or different components, for example, the terminal device may also include an input-output device, a network access device, a bus, etc.
The Processor 30 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, 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 also 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), and 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 and other programs and data required by the terminal device. The memory 31 may also be used to temporarily store 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-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of 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 processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
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 implementation. 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 ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (11)
1. A control method when a vehicle runs at idle, characterized by comprising:
acquiring temperature information of a vehicle and the altitude of the 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 altitudes and corresponding idle speed calibration parameters;
and controlling the vehicle to run at the idle speed based on the determined idle speed calibration parameters.
2. The method for controlling when a vehicle runs at idle according to claim 1, wherein the temperature information includes an ambient temperature and an engine temperature of the vehicle, the idle calibration parameter includes a target idle value when the vehicle runs at idle, and the idle parameter calibration table includes an idle 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:
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.
3. The method for controlling idling of claim 2, wherein the idling value calibration table includes a first idling value calibration table and a second idling value calibration table;
correspondingly, 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 comprises:
determining a first idle speed value based on the environment temperature, the altitude and the first idle speed calibration table, wherein the first idle speed calibration table records the corresponding relation between the environment 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 a corresponding relation between 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.
4. The method of claim 1, wherein the temperature information includes an engine temperature and a transmission temperature of the vehicle, the idle calibration parameters include a target engagement rate of the clutch while the vehicle is idling, and the idle parameter calibration table includes an engagement 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 bonding rate based on the altitude, the engine temperature, the transmission temperature and the bonding rate calibration table, wherein the bonding rate calibration table records the corresponding relation of the altitude, the engine temperature, the transmission temperature and the bonding rate calibration table.
5. The method for controlling idling of claim 4, wherein the integrated rate calibration table includes a first integrated rate calibration table and a second integrated rate calibration table;
accordingly, said determining said target binding rate based on said altitude, said engine temperature, said transmission temperature, and said idle parameter calibration table comprises:
determining a first combined rate based on the altitude, the transmission temperature and the first combined rate calibration table, wherein the first combined rate calibration table records the corresponding relation between the altitude, the transmission temperature and the first combined rate;
determining a second integration rate based on the altitude, the engine temperature and the second integration rate calibration table, wherein the second integration rate calibration table records the corresponding relationship between the altitude, the engine temperature and the second integration rate;
acquiring a third combination rate of the clutch of the vehicle under the working condition of the plain;
taking a minimum binding rate of the first, second, and third binding rates as the target binding rate.
6. The method as claimed in claim 5, wherein said obtaining a third engagement rate of the clutch of the vehicle under plain conditions comprises:
and determining the third combination rate based on the vehicle 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 between the vehicle speed, the transmission temperature and the third combination rate.
7. The method for controlling when a vehicle runs at idle of claim 1, wherein the temperature information includes an engine temperature and a transmission temperature of the vehicle, the idle calibration parameter includes a target transfer torque of the clutch when the vehicle runs at idle, and the idle parameter calibration table includes a transfer 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:
and determining the target transmission torque based on the altitude, the engine temperature, the transmission temperature and the idle speed parameter 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.
8. The method of controlling a vehicle while idling as claimed in claim 7, wherein the transmission torque calibration table includes a first torque calibration table and a second torque calibration table;
accordingly, said determining said target transfer torque based on said altitude, said engine temperature, said transmission temperature, and said idle parameter calibration table comprises:
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;
the larger one of the first transfer torque and the second transfer torque is taken as the target transfer torque.
9. A control device when a vehicle runs at idle, characterized by comprising:
the information acquisition unit is used for acquiring the temperature information of the vehicle and the altitude of the position where the vehicle is located;
the parameter calibration unit is used for determining the 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 altitudes and corresponding idle speed calibration parameters;
and the idle speed control unit is used for controlling the idle speed of the vehicle to run based on the idle speed calibration parameters determined by the parameter calibration unit.
10. 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 implements the steps of the control method when the vehicle runs at idle according to any one of claims 1 to 8 when executing the computer program.
11. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of a control method when a vehicle is idling as claimed in any one of claims 1 to 8.
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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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| CN113266482B CN113266482B (en) | 2023-04-25 |
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| US4785779A (en) * | 1984-12-11 | 1988-11-22 | Nippondenso Co., Ltd. | Internal combustion engine control apparatus |
| 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 |
| CN104196643A (en) * | 2014-08-29 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Method and system for controlling idle speeds of engine |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4785779A (en) * | 1984-12-11 | 1988-11-22 | Nippondenso Co., Ltd. | Internal combustion engine control apparatus |
| 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 |
| CN104196643A (en) * | 2014-08-29 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Method and system for controlling idle speeds of engine |
| 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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| CN113266482B (en) | 2023-04-25 |
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