CN112283342A - Selection method, device, controller, vehicle and medium of transmission gear shifting mode - Google Patents
Selection method, device, controller, vehicle and medium of transmission gear shifting mode Download PDFInfo
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- CN112283342A CN112283342A CN202011126049.3A CN202011126049A CN112283342A CN 112283342 A CN112283342 A CN 112283342A CN 202011126049 A CN202011126049 A CN 202011126049A CN 112283342 A CN112283342 A CN 112283342A
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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
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
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Abstract
The application relates to a method and a device for selecting a gear shifting mode of a transmission, a vehicle control unit, a vehicle and a storage medium. The method comprises the following steps: determining a cruise activation status of the 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 easily arranged 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.
Description
Technical Field
The present disclosure relates to the field of vehicle control, and in particular, to a method and an apparatus for selecting a shift mode of a transmission, a vehicle controller, a vehicle, and a storage medium.
Background
The transmission is a device that automatically shifts gears according to the vehicle speed and the accelerator pedal opening. The transmission can support a plurality of different gear shifting modes at present so as to meet the comfort of vehicles under different working conditions and the requirement of drivers on the power of the vehicles. For example, the transmission may support a cruise shift mode, a hill shift mode, a warm-up shift mode, and the like.
The conventional method for selecting the gear shifting mode at present comprises the following steps: for different shift patterns, the shift pattern is activated when its activation conditions are met, and is not activated otherwise. All active shift patterns are in the order of priority specified in the shift pattern priority table, the active shift pattern with the highest final priority being selected as the final target shift pattern.
Under the condition of supporting multiple gear shifting modes, the transmission can automatically select the gear shifting mode meeting the working environment according to the current working environment of the vehicle, and automatically shifts gears according to the gear shifting table corresponding to the selected gear shifting mode and by combining the accelerator opening and the vehicle speed. However, when the cruise shift pattern is in the activated state, if the vehicle still has a situation that other shift patterns that satisfy the activation condition and have higher priority than the cruise shift pattern need to be prohibited from being activated, the conventional shift pattern selection manner cannot satisfy the requirement, and the flexibility of shift pattern selection in the cruise state of the vehicle is reduced.
Disclosure of Invention
Based on this, it is necessary to provide a method and an apparatus for selecting a shift mode of a transmission, a vehicle controller, a vehicle and a storage medium, for solving the technical problem that the flexibility of the conventional shift mode selection method is low.
In a first aspect, an embodiment of the present application provides a method for selecting a shift mode of a transmission, including:
determining a cruise activation status of the 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; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
In a second aspect, an embodiment of the present application provides a selection device for a shift mode of a transmission, including:
a determination module to determine a cruise activation state of a vehicle;
the first activation module is used for selecting and activating 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 when the cruise activation state is equal to the starting state; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
a first selection module for selecting a target shift pattern of the transmission in accordance with the priority of all activated shift patterns.
In a third aspect, an embodiment of the present application provides a vehicle control unit, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the method for selecting a shift mode of a transmission provided by the first aspect of the embodiment of the present application when executing the computer program.
In a fourth aspect, embodiments of the present application provide a vehicle including a vehicle controller provided in the third aspect of embodiments of the present application.
In a fifth aspect, embodiments of the present application provide a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements the method for selecting a shift mode of a transmission provided by the first aspect of the embodiments of the present application.
According to the selection method and device of the transmission gear shifting mode, the vehicle controller, the vehicle and the storage medium, the cruise activation state of the vehicle is determined, when the cruise activation state is equal to the on state, the gear shifting mode allowed to be activated is selected and activated from a plurality of gear shifting modes meeting the initial activation condition according to a preset mapping relation table, and the target gear shifting mode of the transmission is selected according to the priority of all the activated gear shifting modes. Because the vehicle control unit can only activate the shift mode allowed to be activated from the plurality of shift modes meeting the initial activation condition according to the mapping relation table under the cruise working condition, at the moment, if the part of the shift modes with higher priority than the cruise shift modes is set in the mapping relation table to be not allowed to be activated, the vehicle control unit does not activate the part of the shift modes, and does not select the part of the shift modes as the target shift modes of the transmission, namely shielding part of the shift modes with higher priority than the cruise shift modes. Compared with a traditional gear shifting mode, the technical scheme provided by the application solves the problem that the cruise gear shifting mode is 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.
Drawings
FIG. 1 is a schematic flow chart diagram illustrating a method for selecting a transmission shift mode according to an embodiment of the present application;
FIG. 2 is a schematic representation of a transmission shift table provided in an embodiment of the present application;
FIG. 3 is another schematic flow chart diagram of a method for selecting a transmission shift mode provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a transmission shift mode selection device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle control unit according to an embodiment of the present application.
Detailed Description
Currently, transmissions may support a variety of different shift modes. When a plurality of different shift patterns all satisfy a condition, a conventional transmission shift control scheme generally selects an active shift pattern with the highest priority as a final shift pattern based on a priority ranking of the plurality of different shift patterns in a shift pattern priority calibration table. However, when the cruise shift mode is active, if there are other shift mode requests (e.g., warm-up shift mode) for the vehicle that meet the shift condition, the shift mode has a lower priority in the shift mode priority calibration table than the cruise shift mode. Even if the warm-up shift mode is activated, the vehicle control unit cannot control the transmission to enter the shift mode, reducing the flexibility of the shift mode. On the other hand, for other shift patterns with higher priority than the cruise shift pattern, such as the cold shift pattern, it is necessary to mask it in the actual cruise state so that it is not allowed to operate when it meets the conditions. Therefore, the technical scheme provided by the embodiment of the application can solve the technical problem existing in the traditional transmission gear shifting mode selection, and improves the flexibility of gear shifting mode selection in the cruise state.
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application are further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that the executing body of the method embodiments described below may be a gear shift control device of a transmission, and the device may be implemented by software, hardware or a combination of software and hardware to be a part or all of a vehicle control unit. The following method embodiments are described by taking the vehicle control unit as an example.
Fig. 1 is a flowchart illustrating a method for selecting a shift mode of a transmission according to an embodiment of the present disclosure. The embodiment relates to a specific process of how the vehicle control unit selects the target shift pattern of the transmission when the cruise active state of the vehicle is equal to the on state. As shown in fig. 1, the method may include:
and S101, determining the cruise activation state of the vehicle.
The cruise activation state can be an on state or an off state. The cruise shift mode is activated when the cruise shift mode entry condition of the transmission is satisfied, when the cruise activation state of the vehicle is equal to the on state. For example, when it is received that the command signal sent from the cruise controller is "ON", the shift lever position of the transmission is in the D position, and the electronic control system is not faulty, it is determined that the cruise shift mode entry condition of the transmission is satisfied.
When the cruise shift mode exit condition of the transmission is satisfied, then the cruise shift mode is deactivated, with the cruise active state of the vehicle equal to the off state. For example, when the command signal sent by the cruise controller is received as "OFF" or the position of the transmission shift lever is not in the D-range position or the electronic control system is faulty, it is determined that the cruise shift mode exit condition of the transmission is satisfied.
And S102, when the cruise activation state is equal to the opening 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.
Wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state.
In practical application, the transmission can support multiple gear shifting modes, and different gear shifting modes correspond to different gear shifting tables. The vehicle control unit generally controls the transmission to automatically shift gears based on a gear shifting table corresponding to a gear shifting mode and by combining the current vehicle speed and the current accelerator opening of the vehicle.
Referring to fig. 2, the abscissa of the shift table corresponding to the shift pattern is the current vehicle speed of the vehicle, the ordinate is the current accelerator pedal opening of the vehicle, the solid line in fig. 2 is an upshift line, and the dotted line is a downshift line. The current vehicle speed and the current accelerator pedal correspond to a certain point in a gear shifting table, and the point is called as a working condition point. When the operating point passes the gear-up line and reaches the gear-up line right side, the gear-up operation can be carried out, and when the operating point passes the gear-down line and reaches the gear-down line left side, the gear-down operation can be carried out. For example, when the operating point 1 reaches the operating point 2, it is determined that the target gear of the vehicle is the 3-gear, and the vehicle control unit controls the transmission to perform the 2-gear upshift and the 3-gear upshift operation; when the working condition point 1 reaches the working condition point 3, the target gear of the vehicle is determined to be 2 gears, and the vehicle control unit can control the transmission to perform the operation of 3 gears and 2 gears reduction, so that the automatic gear shifting of the transmission in a certain gear shifting mode is realized.
The cruise function is a control system that allows the driver to ensure that the vehicle travels at a fixed preselected vehicle speed or to automatically adjust the vehicle speed based on the vehicle's surrounding environment without operating the accelerator pedal or the brake pedal. When a vehicle runs on a highway for a long time, once the cruise control switch is turned on, the whole vehicle controller can automatically increase or decrease the accelerator opening of an engine according to the change of the surrounding environment of the vehicle, and meanwhile, the transmission changes gears according to a gear shifting table corresponding to a gear shifting mode, so that the running speed of the vehicle is kept unchanged or the speed of the vehicle is controlled according to a specific algorithm, and great convenience is brought to driving.
For example, it is assumed that the transmission supports a manual shift mode, a hot shift mode, a cold shift mode, a sport shift mode, a hill shift mode, a warm-up shift mode, an economy shift mode, a highland shift mode, a comfort shift mode, and the like, in addition to the cruise shift mode.
A conventional shift pattern priority calibration table is set according to table 1. After a plurality of shift modes meeting the initial activation condition are obtained, the vehicle control unit can sequence the plurality of activated shift modes according to a high-to-low priority sequencing rule based on a shift mode priority calibration table. Assuming that the activated gear shifting modes obtained by the vehicle control unit are a warm-up gear shifting mode and an economic gear shifting mode, the vehicle control unit can sequence the warm-up gear shifting mode and the economic gear shifting mode according to a priority relation among the gear shifting modes in the gear shifting mode priority calibration table and a sequencing rule of high priority to low priority, and the obtained priority sequencing result is that the warm-up gear shifting mode > the economic gear shifting mode, so that the finally selected target gear shifting mode of the transmission is the warm-up mode.
TABLE 1
| Supported shift pattern | Priority relationships | |
| Manual shift pattern | Priority level 1 (i.e. highest priority) | |
| Thermal | Priority | 2 nd |
| Cold | Priority | 3 rd |
| Cruise shift pattern | Priority 4 th | |
| Sport shift pattern | Priority 5 th | |
| Grade shifting mode | Priority 6 th | |
| Warm-up shift pattern | Priority 7 th | |
| Economic | Priority | 8 th |
| Plateau shift pattern | Priority 9 th | |
| Comfortable shift pattern | Priority 10 (i.e. lowest priority) |
However, a problem with conventional algorithm selection of shift modes during vehicle cruise conditions (i.e., cruise active equal to on) is that certain shift modes have priority over cruise shift modes, such as cold shift mode, and the final target shift mode of the transmission is cold shift mode after cold shift mode is activated because of its priority over cruise shift mode. However, in practice it is not necessary for the transmission to enter a cold shift mode, but to remain in a cruise shift mode.
In order to solve the problem, when the cruise activation state is equal to the on state, the vehicle control unit activates only the shift mode which meets the initial activation condition and is allowed to be activated according to a preset mapping relation table. For a part of the shift patterns that meet the initial activation condition but have the property that activation is not allowed will be inhibited. For example, although the cold shift mode has a higher priority than the cruise shift mode and the cold shift mode also satisfies the initial activation condition (the initial activation condition is the entry condition of the cold shift mode), the look-up table (the table is the shift mode priority calibration table reset by the present application) indicates that the cold shift mode has the property that it is not allowed to be activated, and therefore, the cold shift mode will not be activated, so that the transmission can be prevented from entering the cold shift mode and continuously remaining in the cruise shift mode.
For example, the optimized shift pattern priority calibration table (i.e. the mapping table) proposed by the present application is shown in the following table 2:
TABLE 2
| Shift pattern | Activation indicating information |
| |
0 |
| |
0 |
| |
1 |
| |
1 |
| |
1 |
| Warm-up |
0 |
| |
0 |
| |
1 |
| |
1 |
| |
1 |
Referring to table 2, the various shift modes supported by the transmission may be prioritized from high to low, e.g., the manual shift mode having the highest priority and the comfort shift mode having the lowest priority. Meanwhile, activation instruction information corresponding to each shift mode may be set according to actual requirements, and the activation instruction information is used to determine whether the corresponding shift mode is allowed to be activated when the cruise activation state of the vehicle is equal to the on state. As an optional implementation manner, when the value of the activation indication information corresponding to a certain shift pattern is 1, it indicates that the shift pattern is not allowed to be activated when the cruise activation state is equal to the on state; when the value of the activation indication information corresponding to a certain shift pattern is 0, which indicates that the cruise activation state is equal to the on state, the shift pattern may determine whether the shift pattern is activated according to the entry condition and the exit condition of the actual shift pattern, that is, when the entry condition of the shift pattern is satisfied, the shift pattern is activated, and when the exit condition of the shift pattern is satisfied, the shift pattern is deactivated. In addition, in this example, the value of the activation instruction information corresponding to the cruise shift mode needs to be set to 0, otherwise, the cruise shift mode cannot be activated in the vehicle cruise state.
S103, selecting a target gear shifting mode of the transmission according to the priority of all the activated gear shifting modes.
After only the shift modes which meet the initial activation condition and are allowed to be activated are activated based on the preset mapping relation table, the vehicle control unit selects the target shift mode of the transmission according to the priority of all the activated shift modes. Alternatively, the hybrid vehicle controller may select the shift pattern with the highest priority from all the activated shift patterns as the target shift pattern of the transmission.
Continuing with table 2 as an example, when the cruise activation state of the vehicle is equal to the on state, assuming that the hot shift mode, the warm-up shift mode, and the cruise shift mode simultaneously satisfy the initial activation condition, since the values of the activation instruction information corresponding to the hot shift mode, the warm-up shift mode, and the cruise shift mode are all 0, the vehicle controller activates the hot shift mode, the warm-up shift mode, and the cruise shift mode, and selects the hot shift mode with the highest priority as the target shift mode of the transmission from among the hot shift mode, the warm-up shift mode, and the cruise shift mode in the activation state. Assuming that the cold shift mode and the cruise shift mode simultaneously satisfy the initial activation condition, the value of the activation indication information corresponding to the cold shift mode is 1, and the value of the activation indication information corresponding to the cruise shift mode is 0, so that the vehicle control unit only activates the cruise shift mode without activating the cold shift mode, and selects the cruise shift mode as the target shift mode of the transmission. Thus, the transmission does not perform the higher priority cold shift mode.
According to the selection method of the gear shifting modes of the transmission, the cruise activation state of a vehicle is determined, when the cruise activation state is equal to the on state, the gear shifting modes allowed to be activated are selected from a plurality of gear shifting modes meeting the initial activation condition and are activated according to the preset mapping relation table, and the target gear shifting mode of the transmission is selected according to the priority of all the activated gear shifting modes. Because the vehicle control unit can only activate the shift mode allowed to be activated from the plurality of shift modes meeting the initial activation condition according to the mapping relation table under the cruise working condition, at the moment, if the part of the shift modes with higher priority than the cruise shift modes is set in the mapping relation table to be not allowed to be activated, the vehicle control unit does not activate the part of the shift modes, and does not select the part of the shift modes as the target shift modes of the transmission, namely shielding part of the shift modes with higher priority than the cruise shift modes. Compared with a traditional gear shifting mode, the technical scheme provided by the application solves the problem that the cruise gear shifting mode is 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.
In practice, there is another problem with selecting a shift pattern according to conventional algorithms at full vehicle cruise conditions (i.e., cruise activation equal to on), and some shift patterns having lower priority than cruise shift patterns, such as a warmed-up shift pattern, which does not work after the warmed-up shift pattern is activated because of its lower priority than cruise shift patterns, but in practice it is desirable that the warmed-up shift pattern be the final target shift pattern to improve emissions performance at cruise conditions.
To solve this problem, optionally, the priority of the cruise shift mode is lowest among all the first shift modes; wherein the first shift pattern is a shift pattern in which the activation instruction information is permission to be activated.
With continued reference to table 2, assuming that the various shift patterns supported by the transmission are ordered in order of priority from high to low, the cruise shift pattern has the lowest priority among all the shift patterns for which the activation indication information takes a value of 0. For example, in Table 2, the cruise shift mode is given lower priority than the warm-up shift mode. In this way, if the warm-up shift mode and the cruise shift mode simultaneously satisfy the initial activation condition, the vehicle control unit activates the warm-up shift mode and the cruise shift mode because the values of the activation indication information corresponding to the warm-up shift mode and the cruise shift mode are both 0, and selects the warm-up shift mode with the highest priority as the target shift mode of the transmission from the warm-up shift mode and the cruise shift mode in the activated state. In this way, the transmission may enter a warm-up shift mode to improve emissions performance at cruise conditions.
In one embodiment, a specific procedure is also provided for how the vehicle control unit selects a target shift pattern for the transmission when the cruise active state of the vehicle is equal to the off state. Optionally, on the basis of the foregoing embodiment, as shown in fig. 3, the method may further include:
and S301, when the cruise active state is equal to the closed state, activating a gear shifting mode meeting an initial activation condition.
Wherein the initial activation condition is an entry condition of the corresponding shift pattern. The cruise shift mode is inactive when the cruise active state is equal to the off state. Referring to table 2, when the cruise active state of the vehicle is equal to the off state, whether the value of the activation indication information is equal to 0 or 1, each shift pattern may determine whether the shift pattern is activated according to the entry condition and the exit condition of the actual shift pattern, that is, when the entry condition of the shift pattern is satisfied, the shift pattern is activated, and when the exit condition of the shift pattern is satisfied, the shift pattern is deactivated. That is to say, when the cruise active state is equal to the off state, each shift pattern may determine whether the shift pattern is active according to the actual situation, without considering the value of the activation indication information of the shift pattern. That is, when the cruise active state is equal to the off state, the vehicle control unit activates only the shift mode that satisfies the initial activation condition. S302, selecting a target gear shifting mode of the transmission according to the priority of all the activated gear shifting modes.
After the shift modes meeting the initial activation condition are activated, the vehicle control unit selects a target shift mode of the transmission according to the priority of all the activated shift modes. Alternatively, the hybrid vehicle controller may select the shift pattern with the highest priority from all the activated shift patterns as the target shift pattern of the transmission.
Assuming that the cold shift mode and the warm-up mode are simultaneously active, it can be seen from table 2 that the cold shift mode has a higher priority than the warm-up shift mode, and therefore, the vehicle control unit selects the cold shift mode as the target shift mode of the transmission.
In the present embodiment, the cruise shift mode is the lowest priority of all the shift modes for which activation is permitted, and this arrangement makes it possible to cause the transmission to enter a shift mode having a lower priority than the cruise shift mode in the conventional shift mode priority map, such as a warm-up shift mode. Meanwhile, when the cruise activation state is equal to the shutdown state, the vehicle control unit can activate the shift modes based on whether the shift modes meet the initial activation condition, and then select the target shift mode of the transmission based on the priority of the activated shift mode.
Fig. 4 is a schematic structural diagram of a selection device of a transmission shift mode according to an embodiment of the present application. As shown in fig. 4, the apparatus may include: a determination module 401, a first activation module 402 and a first selection module 403;
specifically, the determination module 401 is configured to determine a cruise activation status of the vehicle;
the first activation module 402 is configured to, when the cruise activation state is equal to the on state, select and activate a shift pattern that is allowed to be activated from a plurality of shift patterns that meet an initial activation condition according to a preset mapping relation table; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
the first selection module 403 is used to select a target shift pattern of the transmission according to the priority of all activated shift patterns.
The selection device of the gear shifting mode of the transmission determines the cruise activation state of a vehicle, selects and activates the gear shifting mode allowed to be activated from a plurality of gear shifting modes meeting the initial activation condition according to a preset mapping relation table when the cruise activation state is equal to the on state, and selects the target gear shifting mode of the transmission according to the priority of all the activated gear shifting modes. Because the vehicle control unit can only activate the shift mode allowed to be activated from the plurality of shift modes meeting the initial activation condition according to the mapping relation table under the cruise working condition, at the moment, if the part of the shift modes with higher priority than the cruise shift modes is set in the mapping relation table to be not allowed to be activated, the vehicle control unit does not activate the part of the shift modes, and does not select the part of the shift modes as the target shift modes of the transmission, namely shielding part of the shift modes with higher priority than the cruise shift modes. Compared with a traditional gear shifting mode, the technical scheme provided by the application solves the problem that the cruise gear shifting mode is 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.
On the basis of the above embodiment, optionally, the apparatus may further include: a second activation module and a second selection module;
specifically, the second activation module is used for activating a gear shifting mode meeting an initial activation condition when the cruise activation state is equal to the closing state;
the second selection module is configured to select a target shift pattern of the transmission based on the priority of all activated shift patterns.
On the basis of the above-described embodiment, optionally, the first selection module is specifically configured to select the shift pattern with the highest priority from all the activated shift patterns as the target shift pattern of the transmission.
Optionally, the cruise shift mode has the lowest priority among all the first shift modes; wherein the first shift pattern is a shift pattern in which the activation instruction information is permission to be activated.
In one embodiment, a vehicle control unit is provided, and the internal structure thereof may be as shown in fig. 5. The vehicle control unit comprises a processor and a memory which are connected through a system bus. Wherein, the processor of the vehicle control unit is used for providing calculation and control capability. The memory of the vehicle control unit is used for storing a computer program. The computer program is executed by a processor to implement a method of selecting a transmission shift mode.
Those skilled in the art will appreciate that the configuration shown in fig. 5 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation on the vehicle control unit to which the present application is applied, and that a particular vehicle control unit may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In one embodiment, a vehicle control unit is provided, which includes a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
determining a cruise activation status of the 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; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
In one embodiment, the processor, when executing the computer program, further performs the steps of: activating a shift mode that satisfies an initial activation condition when the cruise activation state is equal to an off state; selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
In one embodiment, the processor, when executing the computer program, further performs the steps of: the shift pattern with the highest priority is selected from all the activated shift patterns as the target shift pattern of the transmission.
Optionally, the cruise shift mode has the lowest priority among all the first shift modes; wherein the first shift pattern is a shift pattern in which the activation instruction information is permission to be activated.
In one embodiment, a vehicle is also provided that includes a hybrid vehicle controller as shown in fig. 5.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
determining a cruise activation status of the 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; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
In one embodiment, the computer program when executed by the processor further performs the steps of: activating a shift mode that satisfies an initial activation condition when the cruise activation state is equal to an off state; selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
In one embodiment, the computer program when executed by the processor further performs the steps of: the shift pattern with the highest priority is selected from all the activated shift patterns as the target shift pattern of the transmission.
Optionally, the cruise shift mode has the lowest priority among all the first shift modes; wherein the first shift pattern is a shift pattern in which the activation instruction information is permission to be activated.
The vehicle control unit, the vehicle and the storage medium of the transmission provided in the above embodiments may execute the method for selecting the shift mode of the transmission provided in any embodiment of the present application, and have corresponding functional modules and beneficial effects for executing the method. For details which are not elaborated in the above-described embodiments, reference may be made to the method for selecting a gear shift mode of a transmission provided in any of the embodiments of the present application.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of selecting a transmission shift mode, comprising:
determining a cruise activation status of the 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; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
2. The method of claim 1, further comprising:
activating a shift mode that satisfies an initial activation condition when the cruise activation state is equal to an off state;
selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
3. The method of claim 1, wherein selecting a target shift pattern for the transmission based on the priority of all activated shift patterns comprises:
the shift pattern with the highest priority is selected from all the activated shift patterns as the target shift pattern of the transmission.
4. The method of claim 1, wherein the cruise shift mode is lowest priority among all first shift modes; wherein the first shift pattern is a shift pattern in which the activation instruction information is permission to be activated.
5. A transmission shift pattern selection device, comprising:
a determination module to determine a cruise activation state of a vehicle;
the first activation module is used for selecting and activating 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 when the cruise activation state is equal to the starting state; wherein 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 mode is allowed to be activated or not when the cruise activation state is equal to an opening state;
a first selection module for selecting a target shift pattern of the transmission in accordance with the priority of all activated shift patterns.
6. The apparatus of claim 5, further comprising:
a second activation module to activate a shift mode that satisfies an initial activation condition when the cruise active state is equal to an off state;
a second selection module for selecting a target shift pattern of the transmission according to the priority of all activated shift patterns.
7. The arrangement according to claim 5, characterized in that the first selection module is specifically adapted to select the shift pattern with the highest priority from all activated shift patterns as the target shift pattern of the transmission.
8. A vehicle control unit comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of the method according to any one of claims 1 to 4.
9. A vehicle characterized by comprising the vehicle control unit of claim 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 of any one of claims 1 to 4.
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| CN115711290A (en) * | 2022-10-25 | 2023-02-24 | 重庆长安新能源汽车科技有限公司 | Automobile gear shifting control method and device, automobile and medium |
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| CN112283342B (en) | 2022-04-05 |
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