CN115711290A - Automobile gear shifting control method and device, automobile and medium - Google Patents
Automobile gear shifting control method and device, automobile and medium Download PDFInfo
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- CN115711290A CN115711290A CN202211311417.0A CN202211311417A CN115711290A CN 115711290 A CN115711290 A CN 115711290A CN 202211311417 A CN202211311417 A CN 202211311417A CN 115711290 A CN115711290 A CN 115711290A
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Abstract
The invention relates to a vehicle gear shifting control method, a vehicle gear shifting control device, a vehicle and a medium, which are used for solving the problem of how to select a proper target gear shifting position when a plurality of gear shifting requirements simultaneously exist in the vehicle. The automobile gear shifting control method comprises the following steps: acquiring a plurality of gear shifting demands of a vehicle at the same moment; determining a target gear shifting position corresponding to each gear shifting requirement based on each gear shifting requirement; and selecting one target gear shift with the highest priority as a vehicle required gear to shift based on the preset priority sequence of each target gear shift.
Description
Technical Field
The invention relates to the field of automobile gear shifting control, in particular to an automobile gear shifting control method, an automobile gear shifting control device, an automobile and a medium.
Background
The target for switching the driving gears (P/R/N/D gears) of the traditional automobile almost comes from the active gear shifting requirement of a driver, and the driver outputs the gear shifting requirement of the driver by operating the gear lever and other structures. Along with the continuous improvement of automobile intelligent degree, the target of the gear shift of traveling is not only limited to the driver and operates the gear lever, has still increased for example: the method comprises the following steps of switching gear shifting targets such as switching P gear by inserting a charging and discharging gun, automatically switching the driver into P gear when leaving the vehicle, switching N gear in a vehicle washing mode, switching P/R/N/D gear in an automatic parking function, switching N gear in a trailer mode, diagnosing and shifting vehicle functions safely, and the like. When a plurality of gear shifting targets exist in the vehicle at the same time, how to select the proper gear shifting target is a problem to be solved urgently in the field.
CN112283342A provides a method for selecting a transmission shift mode by determining a cruise activation state of a vehicle; when the cruise activation state is equal to the starting state, selecting a shift mode allowed to be activated from a plurality of shift modes meeting the initial activation condition according to a preset mapping relation table and activating the shift mode; the mapping relation table comprises a corresponding relation between the gear shifting modes supported by the transmission and activation indicating information, and the activation indicating information is used for indicating whether the corresponding gear shifting modes are allowed to be activated or not when the cruise activation state is equal to the opening state; the target shift pattern of the transmission is selected according to the priority of all activated shift patterns. The method solves the problem that the cruise gear shifting modes are not easy to arrange in the gear shifting mode priority calibration table, can prohibit the transmission from entering a part of gear shifting modes with high priority under the cruise working condition, and improves the flexibility of gear shifting mode selection. The technical means described in this proposal cannot solve the above-mentioned technical problems.
Disclosure of Invention
The invention relates to a vehicle gear shifting control method, a vehicle gear shifting control device, a vehicle and a medium, which are used for solving the problem of how to select a proper target gear shifting position when multiple gear shifting requirements exist in the vehicle at the same time.
The technical scheme of the invention is as follows:
the invention provides an automobile gear shifting control method, which comprises the following steps:
acquiring a plurality of gear shifting demands of a vehicle at the same moment;
determining a target gear shifting position corresponding to each gear shifting requirement based on each gear shifting requirement;
and selecting one target gear shift with the highest priority as a vehicle required gear to shift based on the preset priority sequence of each target gear shift.
Preferably, a plurality of gear shifting demands of the vehicle at the same time are obtained by processing each function controller of the vehicle based on own preset operation logic.
Preferably, the step of selecting the target shift range with the highest priority as the vehicle required range for shifting based on the preset priority ranking of the target shift ranges comprises:
assigning points according to the preset priority sequence based on the preset priority sequence of each target gear shifting position to obtain the respective assigned points of each target gear shifting position; the higher the priority, the higher the score;
and selecting one target gear shift with the highest assigned score as a vehicle demand gear to shift.
Preferably, the shift demand of the vehicle is derived at least from: the method comprises the steps of inputting a gear shifting requirement by a driver, a gear shifting requirement that a vehicle is in a trailer mode, a gear shifting requirement that the vehicle is in a vehicle washing mode, a gear shifting requirement that the driver leaves the vehicle, a gear shifting requirement that the vehicle is in an automatic parking state, a gear shifting requirement that the vehicle is in a function safety diagnosis state or a gear shifting requirement that the vehicle is in a charging and discharging mode.
The invention also provides an automobile gear shifting control device, which comprises:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a plurality of gear shifting demands of a vehicle at the same time;
the determining module is used for determining a target gear shifting position corresponding to each gear shifting requirement based on each gear shifting requirement;
and the gear shifting module is used for selecting one target gear shifting position with the highest priority as a vehicle required gear to shift based on the preset priority ranking of each target gear shifting position.
Preferably, a plurality of gear shifting demands of the vehicle at the same time are obtained by each function controller of the vehicle based on own preset operation logic processing.
Preferably, the shift module comprises:
the assigning unit is used for assigning according to the preset priority sequence of each target shifting gear to obtain the respective assigning of each target shifting gear; the higher the priority, the higher the score;
and the gear shifting unit is used for selecting one target gear shifting range with the highest assigned score as a vehicle required gear to shift gears.
Preferably, the shift demand of the vehicle is derived at least from: the method comprises the following steps of inputting a gear shifting requirement by a driver, a gear shifting requirement of a vehicle in a trailer mode, a gear shifting requirement of the vehicle in a vehicle washing mode, a gear shifting requirement of the driver when the driver leaves the vehicle, a gear shifting requirement of the vehicle in an automatic parking state, a gear shifting requirement of the vehicle in a function safety diagnosis state or a gear shifting requirement of the vehicle in a charging and discharging mode.
The invention further provides an automobile which comprises the automobile gear shifting control device.
The invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
The invention has the beneficial effects that:
according to the priority ranking of different gear shifting requirements, the gear shifting requirement with the highest priority is met preferentially, and therefore vehicle safety is guaranteed; the judgment of each gear shifting requirement does not influence each other, and each function controller can automatically judge the required target gear shifting position based on the own operation logic. When the gear shifting requirement with the highest priority is met, other gear shifting requirements received at the moment are ignored, and the safety accident caused by the fact that the frequent fluctuation of gear shifting is not suitable for the current vehicle working scene is avoided. The scheme is easy to expand, and when a new function controller is added to the vehicle, the gear which is finally required can be obtained only by adding the priority sequence of the new function controller and assigning according to the priority sequence.
Drawings
FIG. 1 is a flow chart of a vehicle shift control method according to an embodiment of the present invention;
FIG. 2 is a block diagram of a shift control device for a vehicle according to an embodiment of the present invention;
FIG. 3 shows P in this embodiment x S, a division calculation mode schematic diagram of a gear;
FIG. 4 is a schematic diagram of the same-gear target maximum score calculation in this embodiment;
fig. 5 is a schematic diagram of the gear arbitration for final demand in the present embodiment.
Detailed Description
The invention is further described below. The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and not by way of limitation with respect to the scope of the invention.
Referring to fig. 1, an embodiment of the present invention provides a vehicle shift control method, including:
step S101, a plurality of gear shifting requirements of the vehicle at the same time are acquired.
A plurality of gear shifting requirements of the vehicle at the same time are obtained by processing each function controller of the vehicle based on the preset operation logic of the function controller. Such as a vehicle body controller, a vehicle control unit, an automatic parking controller and the like, which provide relevant functions for the vehicle. Specifically, the shift demand of the vehicle is derived at least from: the method comprises the following steps of inputting a gear shifting requirement by a driver, a gear shifting requirement of a vehicle in a trailer mode, a gear shifting requirement of the vehicle in a vehicle washing mode, a gear shifting requirement of the driver when the driver leaves the vehicle, a gear shifting requirement of the vehicle in an automatic parking state, a gear shifting requirement of the vehicle in a function safety diagnosis state or a gear shifting requirement of the vehicle in a charging and discharging mode.
And step S102, determining a target gear shifting position corresponding to each gear shifting demand based on each gear shifting demand.
For each function controller, it can analyze what the currently required target shift gear is according to its own preset budget logic.
And step S103, selecting a target gear shift with the highest priority as a vehicle required gear to shift based on the preset priority ranking of each target gear shift.
Preferably, the step of selecting the target shift range with the highest priority as the vehicle demand shift range for shifting based on the preset priority ranking of the target shift ranges comprises:
assigning according to the preset priority sequence based on the preset priority sequence of each target gear shifting position to obtain the respective assigned points of each target gear shifting position; the higher the priority, the higher the score;
and selecting one target gear shift with the highest assigned score as a vehicle demand gear to shift.
As shown in fig. 3 to 5, in the present embodiment, the specific assigning principle for realizing each target shift stage is as follows:
different target gear shifts of the vehicle are abstracted into the following models. Known target gear shifts are respectively: p-gear target gear shift position P 1 T–P i T is i in total; target R-range shift gear R 1 T–R j J in total, T; d-gear target gear shifting gear D 1 T–D n The number of T is n; n-gear target shift gear N 1 T–N m And T is m in number. The target gear shifts may all be active at the same time, may not be active at the same time, and may have some of the targets active at the same time. And the priorities of all the shift targets are confirmed through tests in advance (when the tests are carried out in advance, the confirmation of the priorities of all the target shift gears needs to be combined with the actual shift target scheme, which is not in the discussion range of the embodiment).
Binding a variable to all target shift gears for representing a fractional value of the target shift gears: the fraction of the P-range target gear shift is denoted as P 1 S–P i And S, R/D/N target gear shifting positions are respectively marked as R in the same way 1 S–R j S、D 1 S–D n S、N 1 S–N m And S. The strategy for calculating the fraction value varies according to the activation state of the target gear shift, such as the x-th P gear x Fractional value P of T x The calculation of S is as in fig. 3. The fraction values corresponding to all the target gear shifting positions are calculated according to the mode: when the target gear shifting position is not activated, the corresponding fraction value is 0; when the target shift stage is active, the corresponding fractional value is a given constant.
The numerical values of the given constants of different target gear shifting gears are unequal and are all larger than 0, the gear target priority is arranged according to the size sequence, the gear shifting targets with high priority are arranged, and the given constants are larger than the gear shifting targets with low priority.
Calculating the maximum values of the corresponding fractions of all P gears, all R gears, all D gears and all N gears, and recording the obtained maximum values as PS max 、RS max 、DS max 、NS max As shown in fig. 4.
Recalculating PS max 、RS max 、DS max 、NS max Maximum of four variables, denoted S max . And arbitrates the final target shift position according to the method shown in fig. 5.
By means of the method, the embodiment has the following effects: according to the priority ranking of different gear shifting requirements, the gear shifting requirement with the highest priority is met preferentially, and therefore vehicle safety is guaranteed; the judgment of each gear shifting requirement does not influence each other, and each function controller can automatically judge the required target gear shifting position based on the own operation logic. When the gear shifting requirement with the highest priority is met, other gear shifting requirements received at the moment are ignored, and the safety accident caused by the fact that the frequent fluctuation of gear shifting is not suitable for the current vehicle working scene is avoided. The scheme is easy to expand, and when a new function controller is added to the vehicle, the gear required finally can be obtained only by adding the priority sequence of the new function controller and assigning the priority sequence according to the priority sequence.
Referring to fig. 2, the present invention also provides a shift control device for an automobile, including:
the system comprises an acquisition module 101, a control module and a control module, wherein the acquisition module is used for acquiring a plurality of gear shifting requirements of a vehicle at the same time;
the determining module 102 is configured to determine, based on each shift demand, a target shift position corresponding to each shift demand;
and the gear shifting module 103 is configured to select a target gear shift with the highest priority as a vehicle required gear to shift gears based on the preset priority ranking of each target gear shift.
Preferably, a plurality of gear shifting demands of the vehicle at the same time are obtained by processing each function controller of the vehicle based on own preset operation logic.
Preferably, the shifting module 103 comprises:
an assigning unit 1031, configured to assign a score according to a preset priority order based on the preset priority order of each target shift gear to obtain an assigned score of each target shift gear; the higher the priority, the higher the score;
and a shifting unit 1032 for selecting the highest assigned target shift range as the vehicle demand shift range to shift.
Preferably, the shift demand of the vehicle is derived from: the method comprises the steps of inputting a gear shifting requirement by a driver, a gear shifting requirement that a vehicle is in a trailer mode, a gear shifting requirement that the vehicle is in a vehicle washing mode, a gear shifting requirement that the driver leaves the vehicle, a gear shifting requirement that the vehicle is in an automatic parking state, a gear shifting requirement that the vehicle is in a function safety diagnosis state or a gear shifting requirement that the vehicle is in a charging and discharging mode.
The device of the invention is a device corresponding to the method one by one, and has the same technical effect as the method. The gear shifting requirements with the highest priority are preferentially met according to the priority sequence of different gear shifting requirements, so that the safety of the vehicle is ensured; the judgment of each gear shifting requirement does not influence each other, and each function controller can automatically judge the required target gear shifting position based on the own operation logic. When the gear shifting requirement with the highest priority is met, other gear shifting requirements received at the moment are ignored, and the problem that the gear shifting frequent fluctuation is not suitable for the current vehicle working scene to cause safety accidents is avoided. The scheme is easy to expand, and when a new function controller is added to the vehicle, the gear which is finally required can be obtained only by adding the priority sequence of the new function controller and assigning according to the priority sequence.
The invention further provides an automobile comprising the automobile gear shifting control device.
The invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
While the invention has been described in detail in connection with only a limited number of embodiments, it is not intended to be limited to the specific embodiments shown, and is intended to be exhaustive or otherwise limited to the invention in any suitable manner. It will be readily apparent to those skilled in the art that additional modifications, additions and substitutions can be made, and the invention is not to be seen as limited by the foregoing description, without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A shift control method for a vehicle, comprising:
acquiring a plurality of gear shifting requirements of a vehicle at the same moment;
determining a target gear shifting position corresponding to each gear shifting requirement based on each gear shifting requirement;
and selecting one target gear shift with the highest priority as a vehicle required gear to shift based on the preset priority ranking of the target gear shifts.
2. The vehicle shift control method according to claim 1, wherein the plurality of shift requests of the vehicle at the same time are derived from each function controller of the vehicle based on its own preset arithmetic logic processing.
3. The automotive shift control method according to claim 1, characterized in that the step of selecting a target shift range with the highest priority as the vehicle demand range for shifting based on a preset priority ranking of the target shift ranges comprises:
assigning points according to the preset priority sequence based on the preset priority sequence of each target gear shifting position to obtain the respective assigned points of each target gear shifting position; the higher the priority, the higher the score;
and selecting one target gear shift with the highest assigned score as a vehicle demand gear to shift.
4. The automotive shift control method according to claim 2, characterized in that the shift demand of the vehicle is derived at least from: the method comprises the following steps of inputting a gear shifting requirement by a driver, a gear shifting requirement of a vehicle in a trailer mode, a gear shifting requirement of the vehicle in a vehicle washing mode, a gear shifting requirement of the driver when the driver leaves the vehicle, a gear shifting requirement of the vehicle in an automatic parking state, a gear shifting requirement of the vehicle in a function safety diagnosis state or a gear shifting requirement of the vehicle in a charging and discharging mode.
5. A shift control device for a vehicle, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a plurality of gear shifting demands of a vehicle at the same time;
the determining module is used for determining a target gear shifting position corresponding to each gear shifting requirement based on each gear shifting requirement;
and the gear shifting module is used for selecting one target gear shifting position with the highest priority as a vehicle required gear to shift gears based on the preset priority sequence of each target gear shifting position.
6. The shift control device for an automobile according to claim 5, wherein a plurality of shift requests of the vehicle at the same time are derived from each function controller of the vehicle based on its own preset arithmetic logic processing.
7. The shift control device for a vehicle according to claim 5, wherein the shift module includes:
the assigning unit is used for assigning according to the preset priority sequence of each target shifting gear to obtain the respective assigning of each target shifting gear; the higher the priority, the higher the score;
and the gear shifting unit is used for selecting one target gear shifting range with the highest assigning grade as a vehicle demand gear to shift gears.
8. The shift control device for an automobile according to claim 6, wherein the shift demand of the vehicle is derived from at least: the method comprises the following steps of inputting a gear shifting requirement by a driver, a gear shifting requirement of a vehicle in a trailer mode, a gear shifting requirement of the vehicle in a vehicle washing mode, a gear shifting requirement of the driver when the driver leaves the vehicle, a gear shifting requirement of the vehicle in an automatic parking state, a gear shifting requirement of the vehicle in a function safety diagnosis state or a gear shifting requirement of the vehicle in a charging and discharging mode.
9. An automobile characterized by comprising the automobile shift control device according to any one of claims 5 to 8.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211311417.0A CN115711290A (en) | 2022-10-25 | 2022-10-25 | Automobile gear shifting control method and device, automobile and medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211311417.0A CN115711290A (en) | 2022-10-25 | 2022-10-25 | Automobile gear shifting control method and device, automobile and medium |
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| Publication Number | Publication Date |
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| CN115711290A true CN115711290A (en) | 2023-02-24 |
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| CN202211311417.0A Pending CN115711290A (en) | 2022-10-25 | 2022-10-25 | Automobile gear shifting control method and device, automobile and medium |
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| CN (1) | CN115711290A (en) |
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- 2022-10-25 CN CN202211311417.0A patent/CN115711290A/en active Pending
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