CN115111358A - Shift control method and device for hybrid vehicle, vehicle and storage medium - Google Patents
Shift control method and device for hybrid vehicle, vehicle and storage medium Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0075—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by a particular control method
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
The application provides a gear shifting control method and device for a hybrid vehicle, a vehicle and a storage medium. The method comprises the following steps: acquiring current engine starting state information of the hybrid vehicle; acquiring current electric quantity high-low state information of the hybrid vehicle; selecting a target gear shifting speed simulation table matched with the current engine starting state information and the current power high and low state information from a plurality of gear shifting speed simulation tables, wherein the hybrid vehicle is stored with a plurality of gear shifting speed simulation tables in advance, and each gear shifting speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of power high and low state information; and confirming a target gear shifting speed threshold value matched with the current driving state information from the target gear shifting speed simulation table. The method and the device can enable the same driving state information to correspond to different gear shifting speed thresholds under different engine starting state information and different electric quantity high and low state information, and have higher flexibility.
Description
Technical Field
The present application relates to the field of vehicle technologies, and in particular, to a shift control method and apparatus for a hybrid vehicle, a vehicle, and a storage medium.
Background
Hybrid vehicles, also known as hybrid vehicles, refer to vehicles equipped with more than two power sources. At present, hybrid vehicles are generally equipped with both a thermal power source and an electric power source.
At present, the gear shifting control of the hybrid vehicle is generally realized by inquiring a single gear shifting speed simulation table to obtain a gear shifting speed threshold corresponding to the current driving state information, and performing the gear shifting control according to the current vehicle speed and the gear shifting speed threshold. However, this method is inflexible with respect to the same driving state information, and the corresponding shift speed threshold is fixed.
Disclosure of Invention
The application provides a gear shifting control method and device for a hybrid vehicle, a vehicle and a storage medium, and aims to solve the problem that corresponding gear shifting speed thresholds are fixed and lack of flexibility for the same driving state information.
In a first aspect, the present application provides a shift control method for a hybrid vehicle, comprising:
acquiring current engine starting state information of the hybrid vehicle;
acquiring current electric quantity high-low state information of the hybrid vehicle;
selecting a target gear shifting speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of gear shifting speed simulation tables, wherein the hybrid vehicle is stored with a plurality of gear shifting speed simulation tables in advance, and each gear shifting speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high and low state information;
confirming a target gear shifting speed threshold value matched with the current driving state information from a target gear shifting speed simulation table; wherein the current driving state information is used to characterize the current driving demand of the driver.
In one possible implementation, the shift speed simulation table includes an upshift speed simulation table and a downshift speed simulation table; correspondingly, the target gear shifting speed simulation table comprises a target gear shifting speed simulation table and a target gear shifting speed simulation table;
selecting a target gear shifting speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of gear shifting speed simulation tables, wherein the target gear shifting speed simulation table comprises the following steps:
selecting a target upshift speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of upshift speed simulation tables;
selecting a target downshift speed simulation table matched with the current engine starting state information and the current electric quantity high-low state information from the plurality of downshift speed simulation tables;
each gear-up speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information, and each gear-down speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information.
In one possible implementation, identifying a target shift speed threshold value matching the current driving state information from the target shift speed simulation table includes:
confirming a target upshift speed threshold value matched with the current driving state information from a target upshift speed simulation table;
and confirming the target downshift speed threshold matched with the current driving state information from the target downshift speed threshold simulation table.
In one possible implementation, after confirming the target shift speed threshold value matching the current driving state information from the target shift speed simulation table, the shift control method for the hybrid vehicle further includes:
acquiring the current speed of the hybrid vehicle;
and comparing the current vehicle speed with a target gear shifting speed threshold value, and controlling the hybrid vehicle to shift gears according to the comparison result.
In one possible implementation, the target shift speed threshold includes a target upshift speed threshold and a target downshift speed threshold;
comparing the current vehicle speed with a target gear shifting speed threshold value, and controlling the gear shifting of the hybrid vehicle according to a comparison result, wherein the method comprises the following steps:
comparing the current vehicle speed with a target upshift speed threshold and a target downshift speed threshold respectively;
if the current vehicle speed is greater than the target gear-up speed threshold value, controlling the hybrid vehicle to gear up;
if the current vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift;
wherein the target upshift speed threshold is greater than the target downshift speed threshold.
In one possible implementation, the current driving state information includes current driving mode information and current requested torque information.
In one possible embodiment, the shift control method for a hybrid vehicle is used for shift control of a rear axle of the hybrid vehicle.
In a second aspect, the present application provides a shift control device for a hybrid vehicle, comprising:
the first acquisition module is used for acquiring the current engine starting state information of the hybrid vehicle;
the second acquisition module is used for acquiring the current electric quantity high-low state information of the hybrid vehicle;
the target simulation table selecting module is used for selecting a target gear shifting speed simulation table matched with the current engine starting state information and the current power high and low state information from a plurality of gear shifting speed simulation tables, wherein the hybrid vehicle is stored with a plurality of gear shifting speed simulation tables in advance, and each gear shifting speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of power high and low state information;
the gear shifting speed threshold value determining module is used for determining a target gear shifting speed threshold value matched with the current driving state information from the target gear shifting speed simulation table; wherein the current driving state information is used to characterize the current driving demand of the driver.
In one possible implementation, the shift speed simulation table includes an upshift speed simulation table and a downshift speed simulation table; correspondingly, the target gear shifting speed simulation table comprises a target gear shifting speed simulation table and a target gear shifting speed simulation table;
the target simulation table selection module is specifically configured to:
selecting a target upshift speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of upshift speed simulation tables;
selecting a target downshift speed simulation table matched with the current engine starting state information and the current electric quantity high-low state information from the plurality of downshift speed simulation tables;
each upshift speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information, and each downshift speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information.
In one possible implementation, the shift speed threshold determination module is specifically configured to:
confirming a target upshift speed threshold value matched with the current driving state information from a target upshift speed simulation table;
and confirming the target downshift speed threshold matched with the current driving state information from the target downshift speed threshold simulation table.
In one possible implementation, the shift control device for a hybrid vehicle further includes:
the gear shifting control module is used for acquiring the current speed of the hybrid vehicle; and comparing the current vehicle speed with a target gear shifting speed threshold value, and controlling the hybrid vehicle to shift gears according to the comparison result.
In one possible implementation, the target shift speed threshold includes a target upshift speed threshold and a target downshift speed threshold;
the shift control module is specifically configured to:
comparing the current vehicle speed with a target upshift speed threshold and a target downshift speed threshold respectively;
if the current vehicle speed is greater than the target upshift speed threshold value, controlling the hybrid vehicle to upshift;
if the current vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift;
wherein the target upshift speed threshold is greater than the target downshift speed threshold.
In one possible implementation, the current driving state information includes current driving mode information and current requested torque information.
In one possible embodiment, the shift control device for a hybrid vehicle is used for shifting the rear axle of the hybrid vehicle.
In a third aspect, the present application provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the shift control method for a hybrid vehicle as described in the first aspect or any one of the possible implementations of the first aspect.
In a fourth aspect, embodiments of the present application provide a vehicle including the electronic device according to the third aspect.
In a fifth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the shift control method for a hybrid vehicle as described in the first aspect or any one of the possible implementations of the first aspect.
The embodiment of the application provides a gear shifting control method, a gear shifting control device, a vehicle and a storage medium for a hybrid vehicle, wherein a matched target gear shifting speed simulation table is selected from a plurality of pre-stored gear shifting speed simulation tables through current engine starting state information and current electric quantity high-low state information, and a target gear shifting speed threshold value matched with current driving state information is confirmed from the target gear shifting speed simulation table, so that the same driving state information can correspond to different gear shifting speed threshold values under different engine starting state information and different electric quantity high-low state information, and higher flexibility is achieved; in addition, the engine starting state information and the electric quantity high-low state information can represent the power state of the current hybrid vehicle, and different power states can be flexibly matched with different gear shifting speed simulation tables.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
FIG. 1 is a flowchart of an implementation of a shift control method for a hybrid vehicle according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a shift control device for a hybrid vehicle according to an embodiment of the present application;
fig. 3 is a schematic diagram of an electronic device provided in an embodiment of the present application.
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 present application. It will be apparent, however, to one skilled in the art that the present application 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 application with unnecessary detail.
To make the objects, technical solutions and advantages of the present application more apparent, the following description is given by way of example with reference to the accompanying drawings.
Referring to fig. 1, a flowchart of an implementation of a shift control method for a hybrid vehicle provided by an embodiment of the present application is shown, where an execution subject of the method may be an electronic device, and the electronic device may be a vehicle control unit of a vehicle. The method is detailed as follows:
in S101, current engine start state information of the hybrid vehicle is acquired.
The current engine start state information of the hybrid vehicle may reflect whether the engine of the hybrid vehicle is currently in a start state. Illustratively, the current engine start status information is a start status or an un-start status.
When the engine is in a starting state, the engine can provide power for the whole vehicle. When only one power source of the engine is considered, the whole vehicle power when the engine is in a starting state is better than the whole vehicle power when the engine is in an un-starting state.
In S102, current power amount high-low state information of the hybrid vehicle is acquired.
The current electric quantity high-low state information of the hybrid vehicle can be the current electric quantity high-low state information of a power battery of the hybrid vehicle, and can reflect whether the current electric quantity of the power battery is sufficient or not and whether sufficient power can be provided for the whole vehicle or not. The power battery can provide power for the whole vehicle and can output high voltage.
Illustratively, the current power high-low state information is a high power state and a low power state. Determining current electric quantity high-low State information through a current SOC (State of Charge) of the power battery, and if the current SOC of the power battery is larger than a preset SOC threshold value, determining that the current electric quantity high-low State information is in a high electric quantity State; and if the current SOC of the power battery is not greater than the preset SOC threshold value, determining that the current high-low state information of the electric quantity is a low-electric-quantity state. The preset SOC threshold may be obtained by calibrating according to actual requirements, which is not limited specifically herein.
When the electric quantity high-low state information is in a high electric quantity state, the power battery can provide sufficient power for the whole vehicle. When only one power source, namely a power battery, is considered, the power of the whole vehicle when the electric quantity high-low state information is in a high electric quantity state is superior to the power of the whole vehicle when the electric quantity high-low state information is in a low electric quantity state.
In S103, a target shift speed simulation table matched with the current engine start state information and the current power amount high-low state information is selected from a plurality of shift speed simulation tables, wherein the hybrid vehicle stores a plurality of shift speed simulation tables in advance, and each shift speed simulation table is correspondingly matched with one engine start state information and one power amount high-low state information.
In this embodiment, the hybrid vehicle is pre-stored with a plurality of shift speed simulation tables, and one engine start state information and one electric quantity high and low state information may be matched with one shift speed simulation table. Therefore, a gear shifting speed simulation table can be matched through the current engine starting state inverse attack and the current electric quantity high and low state information, and the gear shifting speed simulation table is called as a target gear shifting speed simulation table.
Each gear shifting speed simulation table stores the matching relation between the driving state information and the gear shifting speed threshold, and the gear shifting speed threshold matched with the same driving state information is different only when the engine starting state information is different from the electric quantity high-low state information.
The engine starting state information and the electric quantity high-low state information can reflect whether the power of the whole vehicle is sufficient or not. For example, the vehicle power in the engine starting state and the high electric quantity state is superior to the vehicle power in the engine non-starting state and the high electric quantity state, and is superior to the vehicle power in the engine starting state and the low electric quantity state; the whole vehicle power when the engine is in a non-starting state and a high electric quantity state and the whole vehicle power when the engine is in a starting state and a low electric quantity state are both superior to the whole vehicle power when the engine is in a non-starting state and a low electric quantity state; the overall vehicle power in the engine off state and high state may be considered the same or similar to the overall vehicle power in the engine on state and low state.
When the power of the whole vehicle is sufficient, the gear shifting speed threshold value matched with the driving state information is higher than the gear shifting speed threshold value matched with the same driving state information when the power of the whole vehicle is insufficient, so that the gear can be shifted up at a low vehicle speed when the power of the whole vehicle is insufficient, the vehicle speed is further improved, and the hybrid vehicle can be driven at a relatively high vehicle speed when the power of the whole vehicle is insufficient.
In S104, a target gear shifting speed threshold matched with the current driving state information is confirmed from the target gear shifting speed simulation table; wherein the current driving state information is used to characterize the current driving demand of the driver.
Based on the foregoing description, the target shift speed simulation table stores the matching relationship between the driving state information and the shift speed threshold, so that the shift speed threshold matching the current driving state information can be obtained by querying the target shift speed simulation table, and the shift speed threshold is referred to as the target shift speed threshold.
The current driving state information may be indicative of the driver's current driving demand and may include state information for any hybrid vehicle that may be indicative of the driver's demand.
The gear shifting speed threshold is used for comparing with the vehicle speed, and determining whether to shift gears according to the comparison result.
In the embodiment, the matched target shifting speed simulation table is selected from a plurality of pre-stored shifting speed simulation tables through the current engine starting state information and the current electric quantity high-low state information, and the target shifting speed threshold matched with the current driving state information is confirmed from the target shifting speed simulation table, so that the same driving state information can correspond to different shifting speed thresholds under different engine starting state information and different electric quantity high-low state information, and higher flexibility is realized.
In addition, the engine starting state information and the electric quantity high-low state information can represent the power state of the current hybrid vehicle, and different power states can be flexibly matched with different gear shifting speed simulation tables. When the power of the whole vehicle is sufficient, the gear shifting speed threshold value matched with the driving state information is higher than the gear shifting speed threshold value matched with the same driving state information when the power of the whole vehicle is insufficient, so that the gear can be shifted up in time at a low vehicle speed when the power of the whole vehicle is insufficient, the vehicle speed is further improved, and the hybrid vehicle can be driven at a relatively high vehicle speed when the power of the whole vehicle is insufficient.
In some embodiments, the shift speed simulation table includes an upshift speed simulation table and a downshift speed simulation table; correspondingly, the target gear shifting speed simulation table comprises a target gear shifting speed simulation table and a target gear shifting speed simulation table;
selecting a target gear shifting speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of gear shifting speed simulation tables, wherein the target gear shifting speed simulation table comprises the following steps:
selecting a target upshift speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of upshift speed simulation tables;
selecting a target downshift speed simulation table matched with the current engine starting state information and the current electric quantity high-low state information from the plurality of downshift speed simulation tables;
each gear-up speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information, and each gear-down speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information.
In this embodiment, an engine start status message and a power high low status message may be matched to an upshift speed simulation table and a downshift speed simulation table. Thus, the current engine on state information and the current power high and low state information may match a target shift speed simulation table and a target downshift speed simulation table.
Each upshift speed simulation table stores the matching relationship between the driving state information and the upshift speed threshold, and each downshift speed simulation table stores the matching relationship between the driving state information and the downshift speed threshold.
The upshift speed threshold is used for comparing with the vehicle speed and determining whether to upshift according to the comparison result. The downshift speed threshold is used for comparing with the vehicle speed and determining whether to downshift or not according to the comparison result.
Each upshift speed simulation table and each downshift speed simulation table can be calibrated according to actual requirements, for example, the calibration can be performed according to factors such as vehicle positioning, crowd-oriented and hardware characteristics, and the driving experience of a user is improved.
In some embodiments, identifying a target shift speed threshold value from the target shift speed simulation table that matches the current driving state information comprises:
confirming a target upshift speed threshold value matched with the current driving state information from a target upshift speed simulation table;
and confirming the target downshift speed threshold matched with the current driving state information from the target downshift speed threshold simulation table.
Since the target upshift speed simulation table stores the matching relationship between the driving state information and the upshift speed threshold, the upshift speed threshold matching the current driving state information can be obtained from the target upshift speed simulation table, and this upshift speed threshold is referred to as the target upshift speed threshold.
Since the target downshift speed simulation table stores the matching relationship between the driving state information and the downshift speed threshold, the downshift speed threshold matching the current driving state information can be obtained from the target downshift speed threshold simulation table, and the downshift speed threshold is referred to as the target downshift speed threshold.
In this embodiment, the current driving state information matches a target upshift speed threshold and a target downshift speed threshold, rather than just matching a shift speed threshold, and frequent upshifts and downshifts can be avoided when the vehicle speed remains fluctuating around the target upshift speed threshold or the target downshift speed threshold.
In some embodiments, after confirming the target shift speed threshold value matching the current driving state information from the target shift speed simulation table, the shift control method for the hybrid vehicle further includes:
acquiring the current speed of the hybrid vehicle;
and comparing the current vehicle speed with a target gear shifting speed threshold value, and controlling the hybrid vehicle to shift gears according to the comparison result.
Wherein, according to the comparison result, controlling the hybrid vehicle shift may include:
generating a gear shifting instruction according to the comparison result, and sending the gear shifting instruction to a rear axle gearbox controller; and the gear shifting instruction is used for instructing the rear axle gearbox controller to control the rear axle gearbox to shift gears according to the gear shifting instruction.
In some embodiments, the target shift speed threshold comprises a target upshift speed threshold and a target downshift speed threshold;
comparing the current vehicle speed with a target gear shifting speed threshold value, and controlling the gear shifting of the hybrid vehicle according to a comparison result, wherein the method comprises the following steps:
comparing the current vehicle speed with a target upshift speed threshold and a target downshift speed threshold respectively;
if the current vehicle speed is greater than the target gear-up speed threshold value, controlling the hybrid vehicle to gear up;
if the current vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift;
wherein the target upshift speed threshold is greater than the target downshift speed threshold.
The target gear-up speed threshold is a vehicle speed threshold for shifting up a first gear to a second gear corresponding to the current driving state information under the current engine starting state information and the current electric quantity high-low state information. The first gear is less than the second gear. For a rear axle two-gear hybrid vehicle, the target upshift speed threshold is a vehicle speed threshold of upshifting from gear 1 to gear 2 corresponding to the current driving state information under the current engine starting state information and the current electric quantity high and low state information, namely, assuming that the current gear 1 is the gear 1, and when the vehicle speed is greater than the target upshift speed threshold, controlling the hybrid vehicle to upshift to the gear 2.
The target downshift speed threshold is a vehicle speed threshold for downshifting a second gear to a first gear corresponding to the current driving state information under the current engine starting state information and the current electric quantity high-low state information. For a rear axle two-gear hybrid vehicle, the target downshift speed threshold is a vehicle speed threshold of downshifting from the gear 2 to the gear 1 corresponding to the current driving state information under the current engine starting state information and the current electric quantity high and low state information, namely assuming that the current gear 2 is, and when the vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift to the gear 1.
And the target upshift speed threshold and the target downshift speed threshold are respectively corresponding upshift speed threshold and downshift speed threshold during the same gear switching. The target upshift speed threshold is greater than the target downshift speed threshold, which is equivalent to a speed threshold interval (i.e., the interval from the target downshift speed threshold to the target upshift speed threshold) formed by the target upshift speed threshold and the target downshift speed threshold. If the current vehicle speed is within the speed threshold range, keeping the current gear unchanged; if the current vehicle speed is greater than the target gear-up speed threshold value, controlling the hybrid vehicle to gear up; and if the current vehicle speed is greater than the target downshift speed threshold, controlling the hybrid vehicle to downshift.
In the embodiment, a speed threshold interval is formed by the target upshift speed threshold and the target downshift speed threshold, and compared with the case of only setting one shift speed threshold, frequent upshifts and downshifts can be avoided. For example, assuming that the target upshift speed threshold is 100km/h, the target downshift speed threshold is 60km/h, and the current gear is 1, when the vehicle speed fluctuates around 100km/h, if the vehicle speed is higher than 100km/h, the upshift is 2, and at this time, if the vehicle speed is slightly lower than 100km/h, since the downshift is not performed below the target downshift speed threshold, the frequent upshift and downshift can be avoided.
In one possible implementation, if the current vehicle speed is greater than the target upshift speed threshold, controlling the hybrid vehicle to upshift may include:
if the current vehicle speed is greater than the target gear-up speed threshold value, generating a gear-up instruction, and sending the gear-up instruction to a rear axle gearbox controller; the gear-up instruction is used for instructing the rear axle gearbox controller to control the rear axle gearbox to gear up.
If the current vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift may include:
if the current vehicle speed is smaller than the target downshift speed threshold, generating a downshift instruction, and sending the downshift instruction to the rear axle gearbox controller; the downshift instruction is used for instructing the rear axle gearbox controller to control the rear axle gearbox to downshift.
In some embodiments, the current driving state information includes current driving mode information and current requested torque information.
The current driving mode information indicates in which driving mode the current hybrid vehicle is, and may be any one of a sport mode, a normal mode, an auto mode, an EV (electric only) mode, a save mode, an awd (four-wheel drive) mode, a snow mode, a mud mode, and the like.
The current requested torque information indicates the requested torque of the current hybrid vehicle, and may be determined through a series of calculations, corrections, and the like, by the existing method, according to the control of the accelerator pedal and the like by the driver. When used for shift control of the rear axle, the current requested torque information may indicate a rear axle requested torque of the current hybrid vehicle.
The current driving state information in the present embodiment includes, but is not limited to, current driving mode information and current requested torque information, and may also include other information that may reflect the driver's demand, for example, an accelerator opening degree, and the like, and for a pure electric vehicle, dynamic discharge power, and the like.
The embodiment reflects the driver requirement through the current driving state information and can carry out gear shifting control according to the actual requirement of the driver.
In some embodiments, a shift control method for a hybrid vehicle is used for shift control of a rear axle of the hybrid vehicle.
The gear shifting control method for the hybrid vehicle provided by the embodiment can be used for gear shifting control of a rear axle of the hybrid vehicle, and particularly can be used for gear shifting control of a rear axle two-gear gearbox of the hybrid vehicle.
It should be noted that the shift control method for the user hybrid vehicle provided in this embodiment is not only used for performing shift control on the rear axle of the hybrid vehicle, but also can be applied to any other application.
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 application.
The following are apparatus embodiments of the present application, and for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 2 shows a schematic structural diagram of a shift control device for a hybrid vehicle according to an embodiment of the present application, and for convenience of description, only the portions related to the embodiment of the present application are shown, and detailed descriptions are as follows:
as shown in fig. 2, the shift control device 30 for a hybrid vehicle includes: a first acquisition module 31, a second acquisition module 32, a target simulation table selection module 33 and a shift speed threshold determination module 34.
The first obtaining module 31 is used for obtaining the current engine starting state information of the hybrid vehicle;
the second obtaining module 32 is configured to obtain current electric quantity high-low state information of the hybrid vehicle;
the target simulation table selecting module 33 is configured to select a target shift speed simulation table matched with the current engine starting state information and the current power amount high-low state information from a plurality of shift speed simulation tables, where the hybrid vehicle stores a plurality of shift speed simulation tables in advance, and each shift speed simulation table is correspondingly matched with one engine starting state information and one power amount high-low state information;
a shift speed threshold determination module 34, configured to determine a target shift speed threshold matching the current driving state information from the target shift speed simulation table; wherein the current driving state information is used to characterize the current driving demand of the driver.
According to the embodiment of the application, the target simulation table selecting module is used for selecting the matched target shifting speed simulation table from a plurality of pre-stored shifting speed simulation tables on the basis of the current engine starting state information and the current electric quantity high and low state information, and the shifting speed threshold determining module is used for determining the target shifting speed threshold matched with the current driving state information from the target shifting speed simulation table, so that the same driving state information can correspond to different shifting speed thresholds under different engine starting state information and different electric quantity high and low state information, and the flexibility is higher; in addition, the engine starting state information and the electric quantity high-low state information can represent the power state of the current hybrid vehicle, and different power states can be flexibly matched with different gear shifting speed simulation tables.
In one possible implementation, the shift speed simulation table includes an upshift speed simulation table and a downshift speed simulation table; correspondingly, the target gear shifting speed simulation table comprises a target gear shifting speed simulation table and a target gear shifting speed simulation table;
the target simulation table selecting module 33 is specifically configured to:
selecting a target upshift speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of upshift speed simulation tables;
selecting a target downshift speed simulation table matched with the current engine starting state information and the current electric quantity high-low state information from the plurality of downshift speed simulation tables;
each gear-up speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information, and each gear-down speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information.
In one possible implementation, the shift speed threshold determination module 34 is specifically configured to:
confirming a target upshift speed threshold value matched with the current driving state information from a target upshift speed simulation table;
and confirming the target downshift speed threshold matched with the current driving state information from the target downshift speed threshold simulation table.
In one possible implementation, the shift control device for a hybrid vehicle further includes: a shift control module.
The gear shifting control module is used for acquiring the current speed of the hybrid vehicle; and comparing the current vehicle speed with a target gear shifting speed threshold value, and controlling the hybrid vehicle to shift gears according to the comparison result.
In one possible implementation, the target shift speed threshold includes a target upshift speed threshold and a target downshift speed threshold;
the shift control module is specifically configured to:
comparing the current vehicle speed with a target upshift speed threshold and a target downshift speed threshold respectively;
if the current vehicle speed is greater than the target gear-up speed threshold value, controlling the hybrid vehicle to gear up;
if the current vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift;
wherein the target upshift speed threshold is greater than the target downshift speed threshold.
In one possible implementation, the current driving state information includes current driving mode information and current requested torque information.
In one possible embodiment, the shift control device for a hybrid vehicle is used for shifting the rear axle of the hybrid vehicle.
The present application further provides a computer program product having a program code, which when executed in a corresponding processor, controller, computing device or electronic device performs the steps of any of the above-mentioned embodiments of the shift control method for a hybrid vehicle, such as S101 to S104 shown in fig. 1. Those skilled in the art will appreciate that the methods presented in the embodiments of the present application and the associated apparatus may be implemented in various forms of hardware, software, firmware, special purpose processors, or a combination thereof. The special-purpose processor may include an Application Specific Integrated Circuit (ASIC), a Reduced Instruction Set Computer (RISC), and/or a Field Programmable Gate Array (FPGA). The proposed method and apparatus are preferably implemented as a combination of hardware and software. The software is preferably installed as an application program on a program storage device. It is typically a machine based computer platform having hardware such as one or more Central Processing Units (CPU), a Random Access Memory (RAM), and one or more input/output (I/O) interfaces. An operating system is also typically installed on the computer platform. The various processes and functions described herein may either be part of an application program or part may be performed by an operating system.
Fig. 3 is a schematic diagram of an electronic device provided in an embodiment of the present application. As shown in fig. 3, the electronic apparatus 4 of this embodiment includes: a processor 40, a memory 41 and a computer program 42 stored in said memory 41 and executable on said processor 40. The processor 40 executes the computer program 42 to implement the steps in the above-described embodiments of the shift control method for a hybrid vehicle, for example, S101 to S104 shown in fig. 1. Alternatively, the processor 40, when executing the computer program 42, implements the functions of the modules/units in the above-mentioned device embodiments, such as the modules/units 31 to 34 shown in fig. 2.
Illustratively, the computer program 42 may be partitioned into one or more modules/units, which are stored in the memory 41 and executed by the processor 40 to implement the scheme provided herein. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 42 in the electronic device 4. For example, the computer program 42 may be divided into the modules/units 31 to 34 shown in fig. 2.
The electronic device 4 may be a vehicle control unit or the like. The electronic device 4 may include, but is not limited to, a processor 40, a memory 41. Those skilled in the art will appreciate that fig. 3 is merely an example of the electronic device 4 and does not constitute a limitation of the electronic device 4 and may include more or fewer components than shown, or some components may be combined, or different components, e.g., the electronic device may also include input-output devices, network access devices, buses, etc.
The Processor 40 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, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 41 may be an internal storage unit of the electronic device 4, such as a hard disk or a memory of the electronic device 4. The memory 41 may also be an external storage device of the electronic device 4, 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 electronic device 4. Further, the memory 41 may also include both an internal storage unit and an external storage device of the electronic device 4. The memory 41 is used for storing the computer program and other programs and data required by the electronic device. The memory 41 may also be used to temporarily store data that has been output or is to be output.
Corresponding to the electronic equipment, the embodiment of the application also provides a vehicle which comprises the electronic equipment and has the same beneficial effects as the electronic equipment.
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 application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other ways. For example, the above-described apparatus/electronic device embodiments 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 application 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 of the embodiments described above can be realized by the present application, and the method can also be implemented by a computer program to instruct related hardware to complete, where the computer program can be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of the embodiments of the shift control method for a hybrid vehicle described above can be realized. 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.
Furthermore, features of the embodiments shown in the drawings of the present application or of the various embodiments mentioned in the present description are not necessarily to be understood as embodiments independent of each other. Rather, each feature described in one example of one embodiment can be combined with one or more other desired features from other embodiments to yield yet further embodiments, which are not described in text or with reference to the accompanying drawings.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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 application and are intended to be included within the scope of the present application.
Claims (10)
1. A shift control method for a hybrid vehicle, characterized by comprising:
acquiring current engine starting state information of the hybrid vehicle;
acquiring current electric quantity high-low state information of the hybrid vehicle;
selecting a target gear shifting speed simulation table matched with current engine starting state information and current power high and low state information from a plurality of gear shifting speed simulation tables, wherein the hybrid vehicle is stored with a plurality of gear shifting speed simulation tables in advance, and each gear shifting speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of power high and low state information;
confirming a target gear shifting speed threshold value matched with the current driving state information from the target gear shifting speed simulation table; wherein the current driving state information is used to characterize the current driving demand of the driver.
2. The shift control method for a hybrid vehicle according to claim 1, characterized in that the shift speed simulation table includes an upshift speed simulation table and a downshift speed simulation table; correspondingly, the target gear shifting speed simulation table comprises a target gear shifting speed simulation table and a target gear shifting speed simulation table;
the method for selecting the target gear shifting speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from the plurality of gear shifting speed simulation tables comprises the following steps:
selecting a target upshift speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from a plurality of upshift speed simulation tables;
selecting a target downshift speed simulation table matched with the current engine starting state information and the current electric quantity high and low state information from the plurality of downshift speed simulation tables;
each gear-up speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information, and each gear-down speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of electric quantity high-low state information.
3. The shift control method for a hybrid vehicle according to claim 2, wherein said confirming, from the target shift speed simulation table, a target shift speed threshold value that matches current driving state information includes:
confirming a target upshift speed threshold value matched with the current driving state information from the target upshift speed simulation table;
and confirming a target downshift speed threshold matched with the current driving state information from the target downshift speed threshold simulation table.
4. The shift control method for a hybrid vehicle according to claim 1, characterized in that after the target shift speed threshold value that matches the current driving state information is confirmed from the target shift speed simulation table, the shift control method for a hybrid vehicle further comprises:
acquiring the current speed of the hybrid vehicle;
and comparing the current vehicle speed with the target gear shifting speed threshold, and controlling the gear shifting of the hybrid vehicle according to the comparison result.
5. The shift control method for a hybrid vehicle according to claim 4, characterized in that the target shift speed threshold includes a target upshift speed threshold and a target downshift speed threshold;
the step of comparing the current vehicle speed with the target gear-shifting speed threshold value and controlling the gear-shifting of the hybrid vehicle according to the comparison result comprises the following steps:
comparing the current vehicle speed with the target upshift speed threshold and the target downshift speed threshold respectively;
if the current vehicle speed is greater than the target gear-up speed threshold value, controlling the hybrid vehicle to gear up;
if the current vehicle speed is less than the target downshift speed threshold, controlling the hybrid vehicle to downshift;
wherein the target upshift speed threshold is greater than the target downshift speed threshold.
6. The shift control method for a hybrid vehicle according to any one of claims 1 to 5, characterized in that the current driving state information includes current driving mode information and current requested torque information.
7. The shift control method for a hybrid vehicle according to any one of claims 1 to 5, wherein the shift control method for a hybrid vehicle is used for shift control of a rear axle of a hybrid vehicle.
8. A shift control device for a hybrid vehicle, characterized by comprising:
the first acquisition module is used for acquiring the current engine starting state information of the hybrid vehicle;
the second acquisition module is used for acquiring the current electric quantity high-low state information of the hybrid vehicle;
the hybrid vehicle comprises a target simulation table selection module, a target power supply module and a power supply module, wherein the target simulation table selection module is used for selecting a target gear shifting speed simulation table matched with current engine starting state information and current power quantity high-low state information from a plurality of gear shifting speed simulation tables, the plurality of gear shifting speed simulation tables are stored in advance in the hybrid vehicle, and each gear shifting speed simulation table is correspondingly matched with one piece of engine starting state information and one piece of power quantity high-low state information;
the gear shifting speed threshold value determining module is used for determining a target gear shifting speed threshold value matched with the current driving state information from the target gear shifting speed simulation table; wherein the current driving state information is used to characterize the current driving demand of the driver.
9. A vehicle comprising an electronic device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, characterized in that said processor, when executing said computer program, implements the steps of the gear shift control method for hybrid vehicles according to any of the preceding claims 1 to 7.
10. 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 gear shift control method for a hybrid vehicle according to any one of claims 1 to 7 above.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639042.6A CN115111358A (en) | 2021-12-29 | 2021-12-29 | Shift control method and device for hybrid vehicle, vehicle and storage medium |
| PCT/CN2022/140233 WO2023125128A1 (en) | 2021-12-29 | 2022-12-20 | Method for controlling gear shift in hybrid vehicle, apparatus, vehicle, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639042.6A CN115111358A (en) | 2021-12-29 | 2021-12-29 | Shift control method and device for hybrid vehicle, vehicle and storage medium |
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| CN115111358A true CN115111358A (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111639042.6A Pending CN115111358A (en) | 2021-12-29 | 2021-12-29 | Shift control method and device for hybrid vehicle, vehicle and storage medium |
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| CN (1) | CN115111358A (en) |
| WO (1) | WO2023125128A1 (en) |
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| WO2023125128A1 (en) * | 2021-12-29 | 2023-07-06 | 长城汽车股份有限公司 | Method for controlling gear shift in hybrid vehicle, apparatus, vehicle, and storage medium |
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| WO2023125128A1 (en) | 2023-07-06 |
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