CN115046001B - Transfer case control method and device, storage medium and vehicle - Google Patents
Transfer case control method and device, storage medium and vehicle Download PDFInfo
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- CN115046001B CN115046001B CN202111108241.4A CN202111108241A CN115046001B CN 115046001 B CN115046001 B CN 115046001B CN 202111108241 A CN202111108241 A CN 202111108241A CN 115046001 B CN115046001 B CN 115046001B
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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
- F16H61/04—Smoothing ratio shift
- F16H61/0437—Smoothing ratio shift by using electrical signals
Abstract
The invention relates to a transfer case control method, a transfer case control device, a storage medium and a vehicle, which avoid the problem that a driving mode is falsely withdrawn or falsely hung in due to energy storage of a torsion spring when the transfer case is switched in mode. The method comprises the following steps: acquiring a mode switching signal of a vehicle, and determining whether the vehicle performs preset mode switching; acquiring driving information of the vehicle when the vehicle switches the preset mode; requesting the vehicle to perform preset gear locking if the driving information of the vehicle meets preset driving information; and under the condition that the vehicle is in the preset gear locking state, controlling the transfer case of the vehicle to switch from the gear of the first mode to the gear of the transition mode, and then switching from the gear of the transition mode to the gear of the second mode so as to enable the vehicle to complete the preset mode switching.
Description
Technical Field
The present disclosure relates to the field of vehicle control, and in particular, to a transfer case control method, a transfer case control device, a storage medium, and a vehicle.
Background
The transfer case generally includes a high-speed drive mode including a four-drive mode (4 WD mode), a high-speed two-drive mode (2H mode), a high-speed four-drive mode (4H mode), and a low-speed drive mode including a low-speed four-drive mode (4L mode). In practical applications, a scenario is often encountered in which a mode switching operation is performed between a high-speed four-drive mode and a low-speed four-drive mode. When the mode is switched, the transfer case drives a gear shifting cam through a driving motor, and the gear shifting cam drives a high-low gear shifting fork or a four-wheel-drive shifting fork to axially move, so that the sliding sleeve is driven to axially move to exit or enter the planet carrier, and the low-speed four-wheel-drive mode or the high-speed four-wheel-drive mode is switched.
In the related art, in order to prevent the problem of motor stalling in the gear shifting process, a torsion spring is designed on the gear shifting cam and is used for realizing the energy storage effect. However, when the transfer case is switched between the high-speed four-drive mode and the low-speed four-drive mode, the gear shifting cam rotates in place, the torsion spring stores energy, the gear shifting fork does not stir the sliding sleeve to exit or enter the planet carrier, and the problem of false exit or false hanging of the driving mode is caused.
Disclosure of Invention
The invention aims to provide a transfer case control method, a transfer case control device, a storage medium and a vehicle, so as to solve the technical problem that a driving mode is falsely withdrawn or falsely hung in due to energy storage of a torsion spring when the transfer case is switched in mode.
To achieve the above object, a first aspect of the present disclosure provides a transfer case control method, including:
acquiring a mode switching signal of a vehicle, and determining whether the vehicle performs preset mode switching;
acquiring driving information of the vehicle when the vehicle switches the preset mode;
requesting the vehicle to perform preset gear locking if the driving information of the vehicle meets preset driving information;
and under the condition that the vehicle is in the preset gear locking state, controlling the transfer case of the vehicle to switch from the gear of the first mode to the gear of the transition mode, and then switching from the gear of the transition mode to the gear of the second mode so as to enable the vehicle to complete the preset mode switching.
Optionally, the first mode is any one of a high-speed four-drive mode and a low-speed four-drive mode, the second mode is any one of the high-speed four-drive mode and the low-speed four-drive mode, the first mode and the second mode are different modes, and the preset mode switching comprises any one of switching from the high-speed four-drive mode to the low-speed four-drive mode and switching from the low-speed four-drive mode to the high-speed four-drive mode.
Optionally, the method further comprises:
in the event that the transfer case of the vehicle is controlled to switch from a first mode gear to a transition mode gear, a signal sent to the vehicle's meter for characterizing the switch to the transition mode is intercepted.
Optionally, the driving information of the vehicle includes a current gear of the vehicle and a current speed of the vehicle, and the preset gear indicates a neutral gear.
Optionally, if the driving information of the vehicle meets the preset driving information, requesting the vehicle to perform the preset gear locking includes:
and if the current gear of the vehicle is in the neutral gear and the current speed of the vehicle is smaller than or equal to the preset speed, requesting the vehicle to perform preset gear locking.
Optionally, the method further comprises:
and prompting a user to put the gear of the vehicle into the neutral gear under the condition that the current gear of the vehicle is not in the neutral gear.
Optionally, the method further comprises:
and prompting a user to slow down or stop the vehicle under the condition that the current speed of the vehicle is greater than the preset speed.
Optionally, the method further comprises:
and under the condition that the vehicle finishes the preset mode switching, requesting the vehicle to exit the preset gear locking.
The second aspect of the present disclosure also provides a transfer case control apparatus, the apparatus comprising:
the determining module is used for acquiring a mode switching signal of the vehicle and determining whether the vehicle performs preset mode switching or not;
the acquisition module is used for acquiring driving information of the vehicle when the vehicle performs the preset mode switching;
the request module is used for requesting the vehicle to perform preset gear locking if the driving information of the vehicle meets preset driving information;
and the control module is used for controlling the transfer case of the vehicle to switch from the gear of the first mode to the gear of the transition mode and then switching from the gear of the transition mode to the gear of the second mode under the condition that the vehicle is locked in the preset gear so as to enable the vehicle to finish the switching of the preset mode.
A third aspect of the present disclosure also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of the first aspects above.
A fourth aspect of the present disclosure also provides a vehicle including the transfer case control device described in the second aspect.
Through the technical scheme, at least the following technical effects can be achieved:
determining whether the vehicle performs preset mode switching by acquiring a mode switching signal of the vehicle, acquiring driving information of the vehicle if the vehicle performs the preset mode switching, requesting the vehicle to perform preset gear locking when the driving information of the vehicle meets the preset driving information, and finally controlling a transfer case of the vehicle to switch from a gear of a first mode to a gear of a transition mode and then switching from the gear of the transition mode to a gear of a second mode under the condition that the vehicle is in the preset gear locking, so that the vehicle completes the preset mode switching. According to the method, when the mode of the vehicle is switched, the transfer case is controlled to be switched from the gear of the first mode to the gear of the transition mode, and then the gear of the transition mode is switched to the gear of the second mode, so that the gear shifting stroke of the transfer case is increased, and the problem that the gear shifting fork does not toggle the sliding sleeve to exit or enter the driving mode of the planet carrier to leave or enter the planet carrier in a false mode due to energy storage of the torsion spring is avoided.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a schematic illustration of a transfer case provided by an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a shift cam provided by an embodiment of the present disclosure;
FIG. 3 is a flow chart of a transfer case control method provided by an embodiment of the present disclosure;
FIG. 4 is a flow chart of another transfer case control method provided by an embodiment of the present disclosure;
FIG. 5 is a block diagram of a transfer case control device provided by an embodiment of the present disclosure;
fig. 6 is a block diagram of a vehicle provided by an embodiment of the present disclosure.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect. The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units. It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The transfer case shown in fig. 1 is an important component of an automobile power system, and has the main function of distributing power transmitted by power to front and rear transmission shafts, and transmitting torque to 4 wheels through a main reducer and a driving shaft, thereby realizing four-wheel drive. The transfer case generally includes a high-speed drive mode including a four-drive mode (4 WD mode), a high-speed two-drive mode (2H mode), a high-speed four-drive mode (4H mode), and a low-speed drive mode including a low-speed four-drive mode (4L mode). And in the high-speed mode, torque from the gearbox is transmitted to an input shaft of the transfer case, a high-low gear combining sleeve and a rear output shaft, one part of power is transmitted to a rear transmission shaft through a rear output flange, and the other part of power is transmitted to a front transmission shaft through a four-drive combining sleeve, a driving sprocket, a transmission chain, an output sprocket, a front output shaft and a front output flange. And torque from the gearbox in the low-speed four-wheel drive mode is transmitted to an input shaft of the transfer case, a sun gear, a planet carrier, a high-low gear combining sleeve and a rear output shaft, and the torque is amplified.
In the related art, when the vehicle performs mode switching between a high-speed four-wheel drive mode and a low-speed four-wheel drive mode, the transfer case drives a gear shifting cam shown in fig. 2 through a control motor, the gear shifting cam drives a high-low gear shifting fork or a four-wheel drive shifting fork to axially move, and further drives a sliding sleeve to axially move to exit or enter a planet carrier, so that mode switching between the high-speed four-wheel drive mode and the low-speed four-wheel drive mode is realized. In addition, in order to prevent the motor from blocking in the gear shifting process, a torsion spring is designed on the gear shifting cam and is used for realizing the energy storage effect. However, when the transfer case is in mode switching between a high-speed four-drive mode and a low-speed four-drive mode, the gear shifting cam rotates in place, and the gear shifting fork does not stir the sliding sleeve to exit or enter the planet carrier due to energy storage of the torsion spring, so that the problem of false exit or false hanging of the driving mode is caused. In addition, because drag torque exists between the multiple clutches in the automatic transmission, when the transfer case is in the low-speed four-drive mode, the drag torque is transmitted from the transmission output shaft and amplified by more than 2.4 times, so that the transfer case can have a shift clamping problem when the transfer case is in mode switching between the high-speed four-drive mode and the low-speed four-drive mode.
In view of the above, the present disclosure provides a transfer case control method, a transfer case control device, a storage medium, and a vehicle, so as to solve the above-mentioned problems.
The following describes the embodiments of the present disclosure in detail.
The embodiment of the disclosure provides a transfer case control method, as shown in fig. 3, which includes:
s301, acquiring a mode switching signal of a vehicle, and determining whether the vehicle performs preset mode switching.
S302, acquiring driving information of the vehicle when the vehicle performs the preset mode switching.
S303, requesting the vehicle to perform preset gear locking if the driving information of the vehicle meets preset driving information.
And S304, under the condition that the vehicle is in the preset gear locking state, controlling the transfer case of the vehicle to switch from the gear of the first mode to the gear of the transition mode, and then switching from the gear of the transition mode to the gear of the second mode so as to enable the vehicle to complete the preset mode switching.
The first mode is any one of a high-speed four-drive mode and a low-speed four-drive mode, the second mode is any one of the high-speed four-drive mode and the low-speed four-drive mode, the first mode and the second mode are different modes, and the preset mode switching comprises any one of switching from the high-speed four-drive mode to the low-speed four-drive mode and switching from the low-speed four-drive mode to the high-speed four-drive mode.
By adopting the method, whether the vehicle performs preset mode switching is determined by acquiring the mode switching signal of the vehicle, if the vehicle performs preset mode switching, driving information of the vehicle is acquired, when the driving information of the vehicle meets the preset driving information, the vehicle is requested to perform preset gear locking, and finally, under the condition that the vehicle is in the preset gear locking, the transfer case of the vehicle is controlled to switch from the gear of the first mode to the gear of the transition mode, and then the gear of the transition mode is switched to the gear of the second mode, so that the vehicle completes the preset mode switching. According to the method, when the mode of the vehicle is switched, the transfer case is controlled to be switched from the gear of the first mode to the gear of the transition mode, and then the gear of the transition mode is switched to the gear of the second mode, so that the gear shifting stroke of the transfer case is increased, namely the torsion displacement of the gear shifting cam is increased, the gear shifting fork can shift the sliding sleeve to completely withdraw or enter the planet carrier, and the problem that the gear shifting fork does not shift the driving mode of the sliding sleeve to withdraw or enter the planet carrier to leave is avoided due to energy storage of the torsion spring. In addition, through increasing the torsion displacement of the gear shifting cam, the dragging torque output by the transmission is effectively reduced, and therefore the problem of gear shifting clamping stagnation is reduced.
In order to make those skilled in the art more aware of the transfer case control method provided by the present disclosure, the following details of the above steps are exemplified.
In one possible implementation, the driving information of the vehicle includes a current gear of the vehicle and a current speed of the vehicle, and the preset gear characterizes the neutral gear.
And when the driving information of the vehicle meets the preset driving information, requesting the vehicle to perform preset gear locking, including: and if the current gear of the vehicle is in the neutral gear and the current speed of the vehicle is smaller than or equal to the preset speed, requesting the vehicle to perform neutral gear locking. Further, in a case where the current gear of the vehicle is not in neutral, the user is prompted to shift the gear of the vehicle into neutral. And prompting a user to slow down or stop the vehicle under the condition that the current speed of the vehicle is greater than the preset speed.
For example, when the current gear of the vehicle is not in the neutral gear, a text reminding message is displayed to the user through the vehicle instrument and the vehicle-mounted screen, and the user can be prompted to put the gear of the vehicle into the neutral gear through an indicator light, a voice reminding mode and the like. And when the current gear of the vehicle is in the neutral gear, the vehicle is requested to perform neutral gear locking, and mechanical faults caused by combination of gear rattle due to gear rattle when the transfer case is subjected to mode switching are avoided, wherein the gear of the vehicle refers to the gear of a transmission of the vehicle.
The preset speed is, for example, less than 5km/h, which may be, for example, 2km/h. Under the condition that the current speed of the vehicle is greater than the preset speed, a text reminding message can be displayed to a user through an instrument and a vehicle-mounted screen of the vehicle, or the user is prompted to slow down or stop in a mode of an indicator light, voice reminding and the like, and the speed-down or stop speed-down method is not particularly limited. It should be noted that, in the case where the current gear of the vehicle is not in neutral and the current speed of the vehicle is greater than the preset speed, the user needs to be prompted to shift the gear of the vehicle into neutral and slow down or park.
In summary, when the vehicle is in neutral gear locking and the current speed of the vehicle is less than or equal to a preset speed, the transfer case is controlled to perform mode switching operation. And under the condition that the vehicle finishes the switching of the preset mode, the vehicle is requested to exit the preset gear locking, so that the user can perform normal gear shifting operation, and the driving requirement of the user is met.
Because, in the related art, when the shift logic of the transfer case is that the shift cam is driven by the driving motor to rotate to a position corresponding to the driving mode, a signal for representing switching to the corresponding driving mode is sent to the meter of the vehicle, and then the meter displays the corresponding driving mode. That is, when the shift cam of the transfer case rotates to the position corresponding to the transition mode, the meter displays that the driving mode of the current vehicle is the driving mode corresponding to the transition mode. In the present disclosure, however, the shift cam is rotated to the transition mode only for increasing the shift stroke of the transfer case, rather than having the drive mode of the vehicle enter the transition mode.
In one possible embodiment, in the event of a transfer case of the vehicle being controlled to switch from a gear in the first mode to a gear in the transition mode, a signal sent to the vehicle's instrument is therefore intercepted, which signal characterizes the switch to the transition mode.
That is, in order to avoid a situation in which the transfer case of the vehicle is shifted from the gear of the first mode to the gear of the transition mode, the meter displays that the vehicle is in the transition mode to cause a user's misunderstanding, a signal for indicating the shift to the transition mode sent to the meter of the vehicle is intercepted in the case in which the transfer case of the vehicle is shifted from the gear of the first mode to the gear of the transition mode, and a signal for indicating the shift to the second mode sent to the meter in the case in which the transfer case is shifted to the gear of the second mode, thereby prompting the user that the drive mode shift of the vehicle is completed.
In addition, the signal which is sent to the instrument and used for representing that the vehicle is being switched to the second mode can be further sent to the instrument in the rotation process of the transfer case before the transfer case starts to be switched from the gear of the first mode, passes through the gear of the transition mode and is switched to the gear of the second mode, so that the user is reminded of the fact that the vehicle is being switched to the driving mode. For example, in the switching process, the meter blinks to display the text information or the indicator light corresponding to the second mode, and after the switching is completed, the meter always lights to display the text information or the indicator light corresponding to the second mode, which is not particularly limited in this disclosure.
Wherein the transition mode may be a driving mode other than the first mode and the second mode, preferably the transition mode may be a high-speed two-drive mode. Under the condition that the transition mode is a high-speed two-drive mode, the transfer case is firstly switched from the first mode to the high-speed two-drive mode and then is switched from the high-speed two-drive mode to the second mode, and by adopting the mode, the gear shifting stroke of the transfer case can be effectively increased, so that the problem that a gear shifting fork is not used for shifting a sliding sleeve to exit or enter a driving mode of a planet carrier to exit or be pseudo-hung due to energy storage of a torsion spring is avoided. And moreover, the dragging torque output by the transmission is effectively reduced, so that the problem of gear shifting clamping stagnation is reduced.
It should be noted that, the execution body of the transfer case control method may be a transfer case control unit, which is used for controlling the transfer case to switch in and switch out the driving mode. And the transfer case control unit is connected with the driving mode switching switch, is used for receiving a mode switching signal generated by selecting a driving mode by a user, is connected with the transmission, is used for receiving a gear state of the transmission and requesting to switch the gear state from the transmission, and is connected with the vehicle body electronic stabilizing system and is used for receiving current speed information of the vehicle. In addition, the transfer case control unit is also connected with the instrument and used for interacting with the instrument and displaying corresponding prompts.
In order to make it easier for those skilled in the art to understand the method provided by the embodiment of the present disclosure, the following describes in detail the steps of the transfer case control method provided by the embodiment of the present disclosure, taking the switching of the low-speed four-drive mode to the high-speed four-drive mode as an example. As shown in fig. 4, the method includes:
s401, responding to a mode switching signal for switching the mode switching switch from a low-speed four-wheel-drive mode to a high-speed four-wheel-drive mode, and acquiring the current vehicle speed of the vehicle body electronic stabilization system and the current gear of the transmission.
S402, judging whether the current vehicle speed is smaller than or equal to the preset vehicle speed or not, and the current gear is in the neutral gear.
Further, in the case where the current vehicle speed is greater than the predetermined vehicle speed, step S403 is performed, in the case where the current gear is not in neutral, step S404 is performed, and in the case where the current vehicle speed is less than or equal to the predetermined vehicle speed and the current gear is in neutral, step S405 is performed.
S403, displaying prompt information for prompting a user to decelerate or stop to the instrument.
S404, displaying prompt information for prompting a user to put the transmission into a neutral gear to the instrument request.
S405, a neutral gear locking is requested to the transmission.
S406, controlling the transfer case to switch from a gear in a low-speed four-drive mode to a gear in a high-speed two-drive mode, and intercepting a signal sent to the instrument and used for representing switching to the high-speed two-drive mode.
S407, controlling the transfer case to switch from the gear of the high-speed two-drive mode to the gear of the high-speed four-drive mode so as to complete the switching of the vehicle driving mode from the low-speed four-drive mode to the high-speed four-drive mode.
S408, requesting the transmission to exit the neutral lock.
By adopting the method, when the vehicle is in mode switching from the low-speed four-drive mode to the high-speed four-drive mode, the transfer case is controlled to be firstly switched from the gear of the low-speed four-drive mode to the gear of the high-speed two-drive mode, and then the transfer case is switched from the gear of the high-speed two-drive mode to the gear of the high-speed four-drive mode, so that the gear shifting stroke of the transfer case is increased, namely the torsion displacement of a gear shifting cam is increased, the gear shifting fork can shift the sliding sleeve to completely withdraw or enter the planet carrier, and the problem that the gear shifting fork does not shift the driving mode of the sliding sleeve to withdraw or enter the planet carrier to be falsely withdrawn or falsely hung in due to energy storage of the torsion spring is avoided. In addition, through increasing the torsion displacement of the gear shifting cam, the dragging torque output by the transmission is effectively reduced, and therefore the problem of gear shifting clamping stagnation is reduced. And intercept and be used for representing the signal that switches to the high-speed two-drive mode to instrument transmission, avoid the user to take the mistake as vehicle mode switching mistake, promote user's driving experience.
FIG. 5 is a block diagram of a transfer case control device, according to an exemplary embodiment. As shown in fig. 5, the transfer case control device 500 includes:
the determining module 501 is configured to obtain a mode switching signal of a vehicle, and determine whether the vehicle performs a preset mode switching.
The obtaining module 502 is configured to obtain driving information of the vehicle when the vehicle performs the preset mode switching.
And the request module 503 is configured to request the vehicle to perform a preset gear locking if the driving information of the vehicle satisfies the preset driving information.
And the control module 504 is configured to control the transfer case of the vehicle to switch from the first mode gear to the transition mode gear and then switch from the transition mode gear to the second mode gear when the vehicle is locked in the preset gear, so that the vehicle completes the preset mode switching.
By adopting the device, whether the vehicle performs preset mode switching is determined by acquiring the mode switching signal of the vehicle, if the vehicle performs preset mode switching, driving information of the vehicle is acquired, when the driving information of the vehicle meets the preset driving information, the vehicle is requested to perform preset gear locking, and finally, under the condition that the vehicle is in the preset gear locking, the transfer case of the vehicle is controlled to switch from the gear of the first mode to the gear of the transition mode, and then the gear of the transition mode is switched to the gear of the second mode, so that the vehicle completes the preset mode switching. Through the device, when the mode of the vehicle is switched, the transfer case is controlled to be switched from the gear of the first mode to the gear of the transition mode, and then the gear of the transition mode is switched to the gear of the second mode, so that the gear shifting stroke of the transfer case is increased, namely the torsion displacement of a gear shifting cam is increased, the gear shifting fork can stir the sliding sleeve to completely withdraw or enter the planet carrier, and the problem that the gear shifting fork does not stir the driving mode of withdrawing or entering the planet carrier to leave or hang in due to energy storage of the torsion spring is avoided. In addition, through increasing the torsion displacement of the gear shifting cam, the dragging torque output by the transmission is effectively reduced, and therefore the problem of gear shifting clamping stagnation is reduced.
Optionally, the first mode is any one of a high-speed four-drive mode and a low-speed four-drive mode, the second mode is any one of the high-speed four-drive mode and the low-speed four-drive mode, the first mode and the second mode are different modes, and the preset mode switching comprises any one of switching from the high-speed four-drive mode to the low-speed four-drive mode and switching from the low-speed four-drive mode to the high-speed four-drive mode.
Optionally, the transfer case control device 500 further includes:
and the interception module is used for intercepting a signal which is sent to an instrument of the vehicle and used for representing switching to the transition mode under the condition that the transfer case of the vehicle is controlled to be switched from the gear of the first mode to the gear of the transition mode.
Optionally, the driving information of the vehicle includes a current gear of the vehicle and a current speed of the vehicle, and the preset gear indicates a neutral gear.
Optionally, the request module 503 is further configured to:
and if the current gear of the vehicle is in the neutral gear and the current speed of the vehicle is smaller than or equal to the preset speed, requesting the vehicle to perform neutral gear locking.
Optionally, the transfer case control device 500 further includes:
and the first prompting module is used for prompting a user to put the gear of the vehicle into the neutral gear under the condition that the current gear of the vehicle is not in the neutral gear.
Optionally, the transfer case control device 500 further includes:
and the second prompting module is used for prompting a user to slow down or stop the vehicle under the condition that the current speed of the vehicle is greater than the preset speed.
Optionally, the transfer case control device 500 further includes:
and the request submodule is used for requesting the vehicle to exit the preset gear locking under the condition that the vehicle finishes the preset mode switching.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
The disclosed embodiments also provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the transfer case control method provided by the method embodiments described above.
The disclosed embodiment also provides a vehicle, as shown in fig. 6, the vehicle 600 includes the transfer case control device 500 described above. Wherein the transfer case control device 500 is used for executing the steps of the transfer case control method described above.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (9)
1. A transfer case control method, the method comprising:
acquiring a mode switching signal of a vehicle, and determining whether the vehicle performs preset mode switching;
acquiring driving information of the vehicle when the vehicle switches the preset mode;
requesting the vehicle to perform preset gear locking if the driving information of the vehicle meets preset driving information;
when the vehicle is in the preset gear locking state, controlling the transfer case of the vehicle to switch from the gear of a first mode to the gear of a transition mode, and then switching from the gear of the transition mode to the gear of a second mode so as to enable the vehicle to complete the preset mode switching;
intercepting a signal sent to an instrument of the vehicle for characterizing switching to the transition mode in the case of controlling a transfer case of the vehicle to switch from the first mode gear to the transition mode gear;
the first mode is any one of a high-speed four-drive mode and a low-speed four-drive mode, the second mode is any one of the high-speed four-drive mode and the low-speed four-drive mode, the first mode and the second mode are different modes, the preset mode switching comprises switching from the high-speed four-drive mode to the low-speed four-drive mode and from the low-speed four-drive mode to any one of the high-speed four-drive mode, and the transition mode is a high-speed two-drive mode.
2. The method of claim 1, wherein the driving information of the vehicle includes a current gear of the vehicle and a current vehicle speed of the vehicle, the preset gear characterizing a neutral gear.
3. The method according to claim 2, wherein requesting the vehicle to perform the preset gear lock if the driving information of the vehicle satisfies the preset driving information includes:
and if the current gear of the vehicle is in the neutral gear and the current speed of the vehicle is smaller than or equal to the preset speed, requesting the vehicle to perform neutral gear locking.
4. The method according to claim 2, wherein the method further comprises:
and prompting a user to put the gear of the vehicle into the neutral gear under the condition that the current gear of the vehicle is not in the neutral gear.
5. The method according to any one of claims 2 or 4, further comprising:
and prompting a user to slow down or stop the vehicle under the condition that the current speed of the vehicle is greater than the preset speed.
6. The method according to claim 1, wherein the method further comprises:
and under the condition that the vehicle finishes the preset mode switching, requesting the vehicle to exit the preset gear locking.
7. A transfer case control device, characterized in that the device comprises:
the determining module is used for acquiring a mode switching signal of the vehicle and determining whether the vehicle performs preset mode switching or not;
the acquisition module is used for acquiring driving information of the vehicle when the vehicle performs the preset mode switching;
the request module is used for requesting the vehicle to perform preset gear locking if the driving information of the vehicle meets preset driving information;
the control module is used for controlling the transfer case of the vehicle to switch from the gear of the first mode to the gear of the transition mode and then switching from the gear of the transition mode to the gear of the second mode under the condition that the vehicle is locked in the preset gear so as to enable the vehicle to complete the switching of the preset mode;
an interception module for intercepting a signal sent to an instrument of the vehicle for representing switching to the transition mode in the case of controlling the transfer case of the vehicle to switch from the gear of the first mode to the gear of the transition mode;
the first mode is any one of a high-speed four-drive mode and a low-speed four-drive mode, the second mode is any one of the high-speed four-drive mode and the low-speed four-drive mode, the first mode and the second mode are different modes, the preset mode switching comprises switching from the high-speed four-drive mode to the low-speed four-drive mode and from the low-speed four-drive mode to any one of the high-speed four-drive mode, and the transition mode is a high-speed two-drive mode.
8. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1-6.
9. A vehicle comprising the transfer case control device of claim 7.
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| CN104534078A (en) * | 2014-12-30 | 2015-04-22 | 东风汽车公司 | Electrically-controlled full-time chained transfer case assembly structure |
| CN106402371A (en) * | 2015-07-28 | 2017-02-15 | 长城汽车股份有限公司 | Mode switching control method, device and system of transfer case |
| CN106931159A (en) * | 2015-12-29 | 2017-07-07 | 长城汽车股份有限公司 | A kind of mode switch control method of transfer gear, apparatus and system |
| CN113415280A (en) * | 2021-08-03 | 2021-09-21 | 北京汽车集团越野车有限公司 | Mode switching control method, device and equipment and automobile |
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| JP7070370B2 (en) * | 2018-11-27 | 2022-05-18 | トヨタ自動車株式会社 | Control device for four-wheel drive vehicles |
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| CN104534078A (en) * | 2014-12-30 | 2015-04-22 | 东风汽车公司 | Electrically-controlled full-time chained transfer case assembly structure |
| CN106402371A (en) * | 2015-07-28 | 2017-02-15 | 长城汽车股份有限公司 | Mode switching control method, device and system of transfer case |
| CN106931159A (en) * | 2015-12-29 | 2017-07-07 | 长城汽车股份有限公司 | A kind of mode switch control method of transfer gear, apparatus and system |
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