CN116753294A - Transmission control method, device, equipment and storage medium for vehicle - Google Patents

Abstract

Embodiments of the present application disclose a transmission control method of a vehicle. The method comprises the following steps: acquiring a bearing temperature of the transmission at a first time; if the bearing temperature acquired at the first moment is detected to rise to a preset temperature threshold value, adjusting working condition parameters related to cooling liquid in the transmission to reduce the bearing temperature; acquiring a bearing temperature of the transmission at a second moment; wherein the second time is later than the first time; and if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameters related to the cooling liquid reach the preset working condition limit value, adjusting other working condition parameters of the transmission except the cooling liquid so as to reduce the bearing temperature again. The embodiment of the application can realize the adjustment of the temperature of the bearing in the speed changer so as to achieve the over-temperature protection of the bearing in the speed changer, improve the performance and the service life of the speed changer.

Description

Transmission control method, device, equipment and storage medium for vehicle

Technical Field

The present application relates to the field of driveline technologies, and in particular, to a method and apparatus for controlling a transmission of a vehicle, an electronic device, and a computer readable storage medium.

Background

Because the bearing has advantages such as simple structure, small size, convenient arrangement, is widely used in vehicle transmission and various industrial equipment, but the bearing on the inside output shaft of vehicle transmission returns under the circumstances of lubrication failure and produces high temperature to cause the bearing holder to melt, the trouble such as part high temperature sintering, and then lead to the derailleur abnormal sound, shake, even unable normal work, then influence the performance and the life-span of derailleur.

Meanwhile, besides some problems of noise, vibration, sound vibration roughness (Noise, vibration, harshnessNVH) and control performance, some problems can influence driving safety and possibly cause traffic accidents, so that people have increasingly high requirements on safety and reliability of automobile speed change wake-up. And the needle roller bearing can cause the locking of the driving wheel of the vehicle under the extreme condition of ablation, so that the vehicle is thrown tail or out of control, and the driving safety is low.

Disclosure of Invention

To solve the above technical problems, embodiments of the present application provide a transmission control method and apparatus for a vehicle, an electronic device, and a computer-readable storage medium.

According to an aspect of an embodiment of the present application, there is provided a transmission control method of a vehicle, including: acquiring a bearing temperature of the transmission at a first time; if the bearing temperature acquired at the first moment is detected to rise to a preset temperature threshold value, adjusting working condition parameters related to cooling liquid in the transmission to reduce the bearing temperature; acquiring a bearing temperature of the transmission at a second moment; wherein the second time is later than the first time; and if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameters related to the cooling liquid reach the preset working condition limit value, adjusting other working condition parameters of the transmission except the cooling liquid so as to reduce the bearing temperature again.

According to one aspect of an embodiment of the present application, the adjusting the coolant-related operating parameters in the transmission to reduce the bearing temperature includes: calculating a first temperature difference between the bearing temperature obtained at the first moment and the preset temperature threshold; determining an adjustment value corresponding to a condition parameter associated with the coolant based on the first temperature difference; and adjusting the working condition parameters related to the cooling liquid based on the adjusting values corresponding to the working condition parameters related to the cooling liquid so as to reduce the temperature of the bearing.

According to an aspect of the embodiment of the present application, the adjusting the coolant related operating condition parameter based on the adjustment value corresponding to the coolant related operating condition parameter to reduce the bearing temperature includes: if the working condition parameters comprise flow, increasing the flow of the cooling liquid in unit time based on the flow regulating value so as to reduce the temperature of the bearing; and if the working condition parameters comprise the flow rate, increasing the flow rate of the cooling liquid in unit time based on the adjustment value of the flow rate so as to reduce the temperature of the bearing.

According to an aspect of an embodiment of the application, the other operating condition parameters include torque of the transmission; the adjusting other working condition parameters of the transmission except for cooling liquid comprises the following steps: calculating a second temperature difference between the bearing temperature obtained at the second moment and the preset temperature threshold; determining an adjustment value corresponding to torque of the transmission based on the second temperature difference; and adjusting the torque of the transmission based on an adjustment value corresponding to the torque of the transmission.

According to an aspect of the embodiment of the present application, the method further includes: acquiring a bearing temperature of the transmission at a third moment; wherein the third time is later than the second time; if the bearing temperature acquired at the third moment is detected to rise to the preset temperature threshold again and the torque of the transmission reaches the preset torque limit value, calculating a third temperature difference between the bearing temperature acquired at the third moment and the preset temperature threshold; determining an adjustment value corresponding to a rotational speed of the transmission based on the third temperature difference; and adjusting the rotating speed of the transmission based on the adjusting value corresponding to the rotating speed of the transmission.

According to an aspect of the embodiment of the present application, the method further includes: acquiring a bearing temperature of the transmission at a fourth time; wherein the fourth time is later than the third time; and if the bearing temperature acquired at the fourth moment is detected to rise to the preset temperature threshold again and the rotating speed of the transmission reaches the preset rotating speed limit value, controlling the transmission to stop working, and sending the generated alarm information to the terminal equipment so as to display the alarm information on the terminal equipment.

According to an aspect of an embodiment of the present application, the other operating condition parameters include a rotational speed of the transmission; the adjusting other working condition parameters of the transmission except for cooling liquid comprises the following steps: calculating a fourth temperature difference between the bearing temperature obtained at the second moment and the preset temperature threshold; determining an adjustment value corresponding to a rotational speed of the transmission based on the fourth temperature difference; and adjusting the rotating speed of the transmission based on the adjusting value corresponding to the rotating speed of the transmission.

According to an aspect of an embodiment of the present application, there is provided a transmission control apparatus of a vehicle, the apparatus including: the first acquisition module is used for acquiring the bearing temperature of the transmission at a first moment; the cooling liquid adjusting module is used for adjusting working condition parameters related to cooling liquid in the transmission to reduce the bearing temperature if the bearing temperature acquired at the first moment is detected to rise to a preset temperature threshold; the second acquisition module is used for acquiring the bearing temperature of the transmission at a second moment; wherein the second time is later than the first time; and the working condition adjusting module is used for adjusting other working condition parameters of the transmission except the cooling liquid to reduce the bearing temperature again if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameters related to the cooling liquid reach the preset working condition limit value.

According to an aspect of an embodiment of the present application, there is provided an electronic apparatus including: one or more processors; and a storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the transmission control method of the vehicle as described above.

According to an aspect of an embodiment of the present application, there is provided a computer-readable storage medium having stored thereon computer-readable instructions, which when executed by a processor of a computer, cause the computer to perform a transmission control method of a vehicle as described above.

In the technical scheme provided by the embodiment of the application, the temperature of the bearing in the transmission is obtained at the first moment, and when the temperature of the bearing reaches the preset temperature threshold, the working condition parameters of the cooling liquid in the transmission are conditioned so as to reduce the temperature of the bearing through the cooling liquid, thereby not affecting the normal operation of the transmission; and then acquiring the temperature of the bearing again at a second moment later than the first moment, and when the temperature of the bearing reaches a preset temperature threshold value and the working condition parameters related to the cooling liquid cannot be regulated, regulating the other working condition parameters except the cooling liquid in the speed changer, so that the temperature of the bearing is reduced again, the aim of over-temperature protection of the bearing in the speed changer is achieved, and the performance and the service life of the speed changer are improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a schematic illustration of a vehicle transmission driveline shown in accordance with an exemplary embodiment of the present application;

FIG. 2 is a schematic illustration of an environment in which transmission control of a vehicle is implemented, as shown in an exemplary embodiment of the application;

FIG. 3 is a flowchart illustrating a method of controlling a transmission of a vehicle according to an exemplary embodiment of the present application;

FIG. 4 is a flow chart of step S320 in the embodiment shown in FIG. 3 in an exemplary embodiment;

FIG. 5 is a flowchart illustrating a method of controlling a transmission of a vehicle according to another exemplary embodiment of the present application;

FIG. 6 is a flow chart of step S340 in the embodiment of FIG. 3 in an exemplary embodiment;

FIG. 7 is a flowchart illustrating a method of controlling a transmission of a vehicle according to another exemplary embodiment of the present application;

FIG. 8 is a flowchart illustrating a method of controlling a transmission of a vehicle according to another exemplary embodiment of the present application;

FIG. 9 is a flowchart illustrating a method of controlling a transmission of a vehicle according to another exemplary embodiment of the present application;

FIG. 10 is a schematic flow diagram of a transmission control of a vehicle in a navigation interface in an exemplary application scenario;

FIG. 11 is a block diagram of a transmission control apparatus of a vehicle shown in accordance with an exemplary embodiment of the present application;

fig. 12 shows a schematic diagram of a computer system suitable for use in implementing an embodiment of the application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

In the present application, the term "plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

First, needle bearings (needle bearings) are roller bearings with cylindrical rollers, and the rollers are thin and long with respect to their diameters. Such rollers are known as needle rollers. The bearing has higher load bearing capacity despite the smaller cross section, and the needle bearing is provided with thin and long rollers (the roller diameter D is less than or equal to 5mm, the L/D is more than or equal to 2.5, and the L is the length of the rollers), so that the radial structure is compact, the inner diameter size and the load bearing capacity are the same as those of other types of bearings, the outer diameter is minimum, and the needle bearing is particularly suitable for supporting structures with limited radial installation sizes.

According to different application occasions, the bearing without an inner ring or the needle roller and retainer assembly can be selected, at the moment, the journal surface and the shell hole surface matched with the bearing are directly used as the inner rolling surface and the outer rolling surface of the bearing, and in order to ensure that the load capacity and the running performance are the same as those of the bearing with the ring, the hardness, the processing precision and the surface quality of the surface of the shaft or the shell Kong Gundao are similar to those of a raceway of the bearing ring. Such bearings can only withstand radial loads.

Fig. 1 is a schematic diagram of a transmission shaft structure in a transmission shown in an exemplary embodiment, as shown in fig. 1, in the conventional transmission shaft structure, a bearing 1, a gear 1, a synchronizer 1, a gear 2, a synchronizer 2, a gear 3, a synchronizer 3, a gear 4, a gear 5 and a bearing 2 are included, wherein needle bearings are further disposed below the gear 1 and the synchronizer 1, and after the transmission is operated, lubricating oil is guided to the needle bearings through oil passage holes inside the transmission shaft, so that lubrication and cooling effects are achieved. In some embodiments, the temperature of the needle bearing may be determined by measuring the temperature of the lubricating oil in the vicinity of the needle bearing by a temperature sensor disposed thereat.

FIG. 2 is a schematic diagram illustrating an implementation environment for controlling a transmission of a vehicle, according to an exemplary embodiment of the present application. As shown in fig. 2, the temperature of the needle bearing in the current transmission is obtained through the intelligent terminal 210, then the intelligent terminal 210 performs a temperature judgment request to the corresponding server 220, and then the server 220 determines that the temperature of the current needle bearing has reached a preset temperature threshold value through detection, and can achieve the effect of reducing the temperature of the needle bearing by controlling and adjusting the working condition parameters related to the cooling liquid in the transmission; after a period of time, the intelligent terminal 210 acquires the temperature of the needle bearing again, then, the corresponding server 220 determines that the temperature of the needle bearing reaches the preset temperature threshold again through detection, and the working condition parameters related to the cooling liquid in the transmission reach the working condition limit value of the shower room, and then, other working condition parameters except the cooling liquid in the transmission are controlled and adjusted to achieve the effect of reducing the temperature of the needle bearing again.

The server 220 may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or may be a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network ), and basic cloud computing services such as big data and an artificial intelligence platform, which are not limited herein. The intelligent terminal 210 may communicate with the server 220 via a wireless network such as 3G (third generation mobile information technology), 4G (fourth generation mobile information technology), 5G (fifth generation mobile information technology), and the like, which is not limited in this regard.

The needle bearing has the advantages of simple structure, small size, convenient arrangement and the like, is widely applied to automobile transmissions and various industrial equipment, along with the rapid development of the automobile industry, an automobile becomes a necessary transportation tool for people to travel, the quality problem of the automobile transmission is one of the most concerned problems, the needle bearing on an output shaft in the automobile transmission can generate high temperature under the condition of poor lubrication, so that faults such as melting of a bearing retainer and high-temperature sintering of the needle are caused, abnormal sound and vibration of the transmission are caused, even normal operation cannot be carried out, the driving safety is influenced, besides the problems of noise, vibration, sound vibration roughness (Noise, vibration, harshnessNVH) and control performance, the driving safety is influenced, and traffic accidents are possibly caused, so that people have increasingly high requirements on the safety and reliability of automobile speed change. The needle bearing ablative extreme conditions can cause the locking of the vehicle drive wheels, resulting in vehicle tail flick or runaway, which is one of the most dangerous failure modes of the transmission.

The problems noted above have less general applicability in automotive transmissions that use needle bearings. It can be seen that various problems can arise due to the excessive temperature of the needle bearings. To solve these, embodiments of the present application, which will be described in detail below, respectively propose a transmission control method of a vehicle, a transmission control apparatus of a vehicle, an electronic device, a computer-readable storage medium, and a computer program product.

Referring to fig. 3, fig. 3 is a flowchart illustrating a transmission control method of a vehicle according to an exemplary embodiment of the present application. The method may be applied to the implementation environment of fig. 2 and specifically performed by the intelligent terminal 210 in the implementation environment. It should be understood that the method may be adapted to other exemplary implementation environments and be specifically executed by devices in other implementation environments, and the implementation environments to which the method is adapted are not limited by the present embodiment.

As shown in fig. 3, in an exemplary embodiment, the transmission control method of the vehicle at least includes step S310 and step S340, which are described in detail as follows:

step S310, obtaining a bearing temperature of the transmission at a first time.

It should be noted that the first time may be the first time when the vehicle starts or any time when the vehicle is running, and of course, the first time when the transmission starts or any time when the transmission is running, and no limitation is placed on a specific time node of the first time.

The temperature of the needle bearing in the transmission is obtained at a first time, wherein, as in the above-described embodiment, the temperature of the needle bearing can be determined by measuring the temperature of the lubricating oil in the vicinity of the needle bearing,

specifically, a temperature sensor can be installed at a position corresponding to the needle roller bearing, the temperature of the needle roller bearing is collected through the temperature sensor, and then the collected temperature of the needle roller bearing is reported to corresponding terminal equipment.

Step S320, if the bearing temperature obtained at the first moment is detected to rise to the preset temperature threshold, the working condition parameters related to the cooling liquid in the transmission are adjusted to reduce the bearing temperature.

Specifically, taking the first moment as an example at any moment in the running process of the transmission, if the temperature of the needle bearing is detected to rise to the preset temperature threshold value in the running process of the transmission of the vehicle, the temperature of the needle bearing can be reduced by adjusting the working condition parameters related to the cooling liquid in the transmission, so that the problem of safety accidents caused by overhigh temperature of the needle bearing in the running process of the transmission is solved.

Step S330, acquiring the bearing temperature of the transmission at a second moment; wherein the second time is later than the first time.

During operation of the vehicle, the temperature of the bearing of the transmission is continuously monitored, and the temperature of the needle bearing of the transmission is obtained at a second time later than the first time in the above embodiment, and similarly, the temperature of the needle bearing can be determined by measuring the temperature of lubricating oil near the needle bearing by the wireless temperature measuring device.

Step S340, if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameters related to the cooling liquid reach the preset working condition limit, adjusting other working condition parameters of the transmission except the cooling liquid so as to reduce the bearing temperature again.

If the temperature of the bearing obtained at the second moment later than the first moment is detected to rise to the preset temperature threshold again, and the working condition parameters related to the cooling liquid reach the preset working condition limit value, at the moment, the aim of reducing the temperature of the needle bearing can be achieved by adjusting other working condition parameters except the cooling liquid in the transmission, so that the temperature of the needle bearing is prevented from being too high.

In some possible embodiments, during the operation of the transmission, the temperature of the needle bearing is continuously monitored, when the temperature of the needle bearing is monitored to rise to the preset temperature threshold, or the preset temperature threshold is exceeded, the purpose of reducing the temperature of the needle bearing can be achieved by adjusting the relevant operating condition parameters of the cooling fluid in the transmission, wherein the adjustment mode of the relevant operating condition parameters of the cooling fluid can be that the adjustment range of the relevant operating condition parameters of the cooling fluid is determined by the magnitude of the temperature difference between the real-time temperature of the needle bearing and the preset temperature threshold until the relevant operating condition parameters of the cooling fluid are adjusted to the preset operating condition limit value. Or when the temperature of the needle bearing is monitored to rise to the preset temperature threshold value, or the temperature exceeds the preset temperature threshold value, the relevant working condition parameters of the cooling liquid are directly adjusted to the preset working condition limit value.

In the embodiment, the temperature of a bearing in the transmission is obtained at the first moment when the transmission operates, and when the temperature of the bearing reaches a preset temperature threshold value, the working condition parameters of cooling liquid in the transmission are conditioned so as to reduce the temperature of the bearing through the cooling liquid, so that the normal operation of the transmission is not influenced; and then acquiring the temperature of the bearing again at a second moment later than the first moment, and when the temperature of the bearing reaches a preset temperature threshold value and the working condition parameters related to the cooling liquid cannot be regulated, regulating the other working condition parameters except the cooling liquid in the speed changer, so that the temperature of the bearing is reduced again, the aim of over-temperature protection of the bearing in the speed changer is achieved, and the performance and the service life of the speed changer are improved.

Further, referring to fig. 4, in one exemplary embodiment of the present application, the specific implementation process of adjusting the working condition parameters related to the coolant in the transmission to reduce the bearing temperature may include the following steps S410 to S430, which are described in detail below:

in step S410, a first temperature difference between the bearing temperature obtained at the first moment and a preset temperature threshold is calculated.

As described above, during the operation of the transmission of the vehicle, the temperature T1 of the lubricating oil in the vicinity of the needle bearings in the transmission power train is acquired by the wireless temperature detecting device, and the temperature Δt1 between the temperature T1 and the preset temperature threshold T is calculated.

It should be noted that, the preset temperature threshold may be set according to the material adopted by the needle bearing, or may be set according to the actual use requirement of the transmission.

In step S420, an adjustment value corresponding to the operating condition parameter related to the coolant is determined based on the first temperature difference.

The working principle of the gearbox oil cooler is that when the engine runs, the water pump rotates along with the engine, the pressure of the cooling liquid is increased, the cooling liquid is forced to circulate, and the circulating cooling liquid takes away heat of parts such as an engine cylinder body, a cylinder sleeve, a cylinder cover and the like. When the coolant temperature does not reach the opening temperature of the thermostat, the cooled coolant remains in the radiator water chamber and is pumped into the cylinder block by the water pump to participate again in the cooling cycle.

In a high-performance and high-power intensified engine, an oil cooler must be installed because of a large thermal load. The oil cooler is disposed in the lubrication oil passage. The oil cooler is used for cooling lubricating oil and keeping the oil temperature within a normal working range. In a high-power, intensified engine, an oil cooler must be installed because of a large thermal load. When the engine is operated, the lubricating ability is reduced because the viscosity of the engine oil becomes thin as the temperature increases. Therefore, some engines incorporate an oil cooler that serves to lower the temperature of the engine oil and maintain a certain viscosity of the lubricating oil. The oil cooler is arranged in the lubricating system circulating oil path.

Therefore, according to the temperature of the nearby lubricating oil given by the needle bearing in the transmission at the first moment, and taking the temperature of the lubricating oil as the temperature of the needle bearing, the adjusting value corresponding to the working condition parameter related to the cooling liquid can be calculated by determining the temperature difference delta T1 between the temperature T1 of the current needle bearing and the preset temperature threshold T. The temperature of the needle bearing is reduced, and meanwhile, the accurate adjustment of the working condition parameters related to the cooling liquid is realized, so that the normal operation of the transmission is ensured.

Step S430, adjusting the working condition parameters related to the cooling liquid based on the adjusting values corresponding to the working condition parameters related to the cooling liquid so as to reduce the temperature of the bearing.

Specifically, the adjustment value of the coolant-related operating condition parameter, for example, the flow rate value of the coolant, or the like is determined based on the temperature difference Δt1 between the current needle bearing temperature T1 and the preset temperature threshold value T. Therefore, the temperature of engine oil in the cooler is increased by adjusting the flow rate or the flow quantity of the cooling liquid, and the effect of reducing the temperature of the needle bearing is achieved.

In this embodiment, by calculating the temperature difference between the bearing temperature obtained at the first moment and the preset temperature threshold, the adjustment value corresponding to the working condition parameter related to the cooling liquid is determined according to the temperature difference, and then the working condition parameter related to the cooling liquid is adjusted according to the adjustment value corresponding to the working condition parameter related to the cooling liquid, so that the effect of reducing the temperature of the needle bearing is achieved, the accurate adjustment of the working condition parameter related to the cooling liquid is also achieved, and the normal operation of the transmission is ensured.

Further, based on the above embodiment, referring to fig. 5, in one exemplary embodiment provided by the present application, the specific implementation process of adjusting the cooling liquid related operating parameters based on the adjustment values corresponding to the cooling liquid related operating parameters to reduce the bearing temperature may further include step S510 and step S520, which are described in detail below:

in step S510, if the operating condition parameter includes the flow rate, the flow rate of the cooling liquid in unit time is increased based on the adjustment value of the flow rate, so as to reduce the bearing temperature.

In this embodiment, the working condition parameter related to the cooling liquid includes the flow rate of the cooling liquid, so that the flow rate of the cooling liquid can be determined according to the first temperature difference between the temperature of the needle bearing in the transmission obtained at the first moment and the preset temperature threshold value of the needle bearing.

According to the temperature difference between the temperature of the needle bearing in the transmission and the preset temperature threshold value of the needle bearing, which can be obtained at the first moment, the regulating value of the flow of the cooling liquid can be calculated, and the flow of the cooling liquid in unit time can be increased according to the regulating value of the flow of the cooling liquid, so that the effect of reducing the temperature of the bearing can be achieved.

Therefore, by properly increasing the flow rate of the cooling liquid in the cooler in the transmission in unit time, the temperature of the needle bearing in the transmission can be reduced, and meanwhile, the viscosity of the cooling liquid can be improved, and the lubricating effect can be improved.

In step S520, if the operating condition parameter includes the flow rate, the flow rate of the cooling liquid in unit time is increased based on the adjustment value of the flow rate, so as to reduce the bearing temperature.

In some embodiments, the coolant-related operating condition parameter may further include a flow rate of the coolant, such that the magnitude of the flow rate of the coolant may be determined based on a first temperature difference between a temperature of a needle bearing in the transmission obtained at the first time and a temperature threshold preset for the needle bearing.

For example, the adjustment value of the flow rate of the cooling liquid can be calculated according to the first temperature difference between the temperature of the needle bearing in the transmission and the preset temperature threshold value of the needle bearing, which can be obtained at the first moment, and the flow rate of the cooling liquid in unit time can be increased according to the adjustment value of the flow rate of the cooling liquid, so that the effect of reducing the temperature of the bearing can be achieved.

Therefore, by properly increasing the flow rate of the cooling liquid in the cooler in the transmission in unit time, the temperature of the needle bearing in the transmission can be reduced, and the circulation speed of the cooling liquid can be increased, so that the cooling effect is achieved.

In the embodiment, the flow of the cooling liquid in the speed changer is regulated through the first temperature difference, so that the temperature of the cooling liquid in the speed changer can be reduced, the viscosity of the cooling liquid is increased, and a better lubrication cooling effect is achieved; or the flow rate of the cooling liquid in the speed changer is regulated through the first temperature difference, and the high heat load in the speed changer can be taken away through the cooling liquid with high flow rate, so that the cooling effect is achieved.

Further, based on the above embodiment, referring to fig. 6, in one exemplary embodiment of the present application, the above-mentioned other operating parameters except for the coolant include torque of the transmission, and the above-mentioned specific implementation process for adjusting the other operating parameters except for the coolant of the transmission may further include steps S610 to S630, which are described in detail below:

in step S610, a second temperature difference between the bearing temperature obtained at the second moment and a preset temperature threshold is calculated.

With the above embodiment, during the operation of the transmission, the temperature of the lubricating oil near the needle bearing in the transmission is obtained at the second time later than the first time as the temperature of the needle bearing obtained at the second time, and the second temperature difference Δt2 between the temperature T2 of the needle bearing obtained at the second time and the preset temperature threshold T is calculated.

In some embodiments, the second time is after the coolant-related operating parameters have been adjusted to the preset operating limits. As described in the above embodiment, the temperature of the lubricating oil near the needle bearing in the transmission is collected by the wireless temperature measuring device, the temperature of the lubricating oil near the needle bearing is taken as the temperature of the needle bearing, the adjustment value of the working condition parameter related to the cooling liquid is calculated in real time according to the temperature difference between the temperature of the needle bearing and the preset temperature threshold, the working condition parameter related to the cooling liquid is taken as the flow rate and the flow velocity of the cooling liquid, when the flow rate of the cooling liquid is adjusted to the preset upper flow limit, or when the flow rate of the cooling liquid is adjusted to the preset upper flow rate limit, the time of the obtained temperature of the needle bearing is the second time.

Step S620, determining an adjustment value corresponding to torque of the transmission based on the second temperature difference.

Specifically, with the above embodiment, at the second moment, the working condition parameters related to the cooling fluid in the transmission have been adjusted to the preset working condition limits, so that other working condition parameters except the cooling fluid related parameters in the transmission can be adjusted. For example, an adjustment value corresponding to torque of the transmission may be determined based on the second temperature difference Δt2.

Namely, the effect of cooling the needle bearing can be achieved by adjusting the working condition parameters of the torque of the engine in the transmission.

The torque is a special moment for rotating an object. The torque of the engine refers to the torque output from the crankshaft end of the engine. Under the condition of fixed power, it has inverse relation with engine rotation speed, the faster the rotation speed, the smaller the torque, and conversely, the larger the torque, it reflects the load capacity of the automobile in a certain range. The external torque is called the torque or external torque, and the internal torque or torque.

Step S630 adjusts the torque of the transmission based on the adjustment value corresponding to the torque of the transmission.

Specifically, an adjustment value corresponding to torque of an engine of the vehicle is determined based on a second temperature difference between the bearing temperature obtained at the second moment and a preset temperature threshold, and then torque of an engine of the transmission is adjusted based on the adjustment value corresponding to the torque of the engine, so that temperature of a needle bearing in the transmission is achieved by adjusting the torque of the transmission.

In the embodiment, when the working condition parameters related to the cooling liquid are regulated to the preset working condition limit value in the running process of the transmission, the regulating value of the torque of the transmission can be determined through the temperature difference between the temperature of the needle bearing and the preset temperature threshold value, so that the condition that the temperature of the needle bearing is too high is avoided, the torque of the transmission is regulated based on the regulating value, the accurate regulation of the torque of the transmission is realized, and the driving experience of a driver is prevented from being influenced.

Further, based on the above embodiment, referring to fig. 7, in one exemplary embodiment of the present application, the implementation process of the transmission control method of the vehicle may further include the following steps S710 to S740, which are described in detail below:

step S710, acquiring the bearing temperature of the transmission at a third moment; wherein the third time is later than the second time.

With the above embodiment, during the operation of the transmission, the temperature of the lubricating oil in the vicinity of the needle bearing in the transmission is obtained at the third timing later than the second timing, and the temperature of the lubricating oil in the vicinity of the needle bearing is taken as the temperature of the needle bearing.

In some embodiments, the third time is when the coolant-related operating parameters have been adjusted to the corresponding operating parameter limits, and the torque of the transmission is also adjusted to the corresponding torque limits. The temperature of the needle bearing is monitored in real time during the operation of the transmission, and if the temperature of the needle bearing rises to or exceeds a preset temperature threshold, the working condition parameters related to cooling liquid in the transmission or the parameters related to torque of the transmission are adjusted through the temperature difference between the temperature of the needle bearing and the preset temperature threshold, so that the effect of reducing the temperature on the needle bearing is achieved.

In step S720, if it is detected that the bearing temperature obtained at the third moment rises to the preset temperature threshold again and the torque of the transmission reaches the preset torque limit, a third temperature difference between the bearing temperature obtained at the third moment and the preset temperature threshold is calculated.

As in the above embodiment, if the temperature of the needle bearing in the transmission is measured by the corresponding wireless temperature measuring device and rises again to the preset temperature threshold value, and the torque of the transmission has reached the preset torque limit value at this time, that is, the temperature of the needle bearing cannot be reduced by adjusting the parameter related to the torque of the transmission, then the third temperature difference Δt3 between the temperature T3 of the needle bearing obtained at the third time and the preset temperature threshold value T is calculated.

In step S730, an adjustment value corresponding to the rotational speed of the transmission is determined based on the third temperature difference.

Specifically, with the above embodiment, at the third moment, the operating condition parameter related to the total coolant of the transmission has been adjusted to the preset operating condition threshold, and the torque in the transmission has reached the preset torque limit, that is, the temperature of the needle bearing cannot be reduced by adjusting the operating condition parameter related to the coolant of the transmission, and also by adjusting the torque related parameter of the transmission, so in some possible embodiments, the temperature of the needle bearing in the transmission can be reduced by adjusting the rotational speed in the transmission, and the adjustment value of the rotational speed of the transmission can be determined by the third temperature difference Δt3 between the temperature T3 of the needle bearing obtained at the third moment and the preset temperature threshold T.

Step S740, adjusting the rotational speed of the transmission based on the adjustment value corresponding to the rotational speed of the transmission.

After the adjustment value of the rotation speed of the transmission is determined based on the third temperature difference delta T3 between the temperature T3 of the needle bearing acquired at the third moment and the preset temperature threshold T, the rotation speed of the transmission is adjusted based on the adjustment value corresponding to the rotation speed of the transmission, so that the effect of cooling the needle bearing in the transmission is achieved by adjusting the rotation speed of the transmission.

In the embodiment, after the torque of the transmission reaches the preset torque limit value, the rotating speed of the transmission is regulated, so that the temperature of the needle bearing in the transmission is reduced, the speed dip caused by the regulation of the rotating speed at the beginning is avoided, and the driving experience of a driver is ensured; on the other hand, the temperature of the needle bearing in the transmission is regulated by the regulating value determined by the temperature difference, so that the temperature of the needle bearing is reduced, and the precise regulation and control of the rotating speed of the transmission are realized.

Further, based on the above embodiment, referring to fig. 8, in one exemplary embodiment of the present application, a specific implementation process of the above-mentioned transmission control method of a vehicle may further include step S810 and step S820, which are described in detail below:

Step S810, acquiring the bearing temperature of the transmission at a fourth moment; wherein the fourth time is later than the third time;

step S820, if the bearing temperature obtained at the fourth moment is detected to rise to the preset temperature threshold again and the rotating speed of the transmission reaches the preset rotating speed limit value, the transmission is controlled to stop working, and the generated alarm information is sent to the terminal equipment so as to display the alarm information on the terminal equipment.

Specifically, during the operation of the transmission, the temperature of the lubricating oil near the needle bearing in the transmission is obtained at a fourth time later than the third time, the temperature of the lubricating oil near the needle bearing is used as the current temperature of the needle bearing, if the temperature of the needle bearing obtained at the fourth time is detected to rise to the preset temperature threshold again, and the rotating speed of the transmission reaches the preset rotating speed limit value at this time, if the needle bearing is continuously heated, the faults such as melting of the bearing retainer and high-temperature sintering of the component can be caused, abnormal noise and vibration of the transmission can be further caused, even the transmission cannot work normally, and the locking of the driving wheels of the vehicle can be caused under the condition that the needle bearing is ablated, so that in order to avoid causing unnecessary safety accidents, the transmission is required to be controlled to stop working.

For example, during operation of the transmission, if it is detected that the bearing temperature acquired at the fourth time rises again to the preset temperature threshold value, and at this time, the working condition parameter related to the coolant in the transmission has reached the preset parameter limit value, the torque of the transmission has been adjusted to the preset torque limit value, and the rotational speed of the transmission has also been adjusted to the preset rotational speed limit value, under the condition of ensuring safe driving, slow stop of the transmission is controlled, and/or corresponding alarm information is generated and sent to the corresponding terminal device, so that the alarm information is displayed on the terminal device, and the driver is controlled to stop working after seeing the alarm information.

In this embodiment, after all the working condition parameters related to the bearing temperature in the transmission have been adjusted to the preset working condition limit values, the transmission is controlled to stop working, and alarm information is sent to the corresponding terminal equipment, so that a driver can know that the current bearing temperature is too high, and corresponding measures are taken to avoid safety accidents caused by the too high bearing temperature.

Further, based on the above embodiment, referring to fig. 9, in one exemplary embodiment of the present application, the above other operating parameters include a rotational speed of the transmission, and the specific implementation process of adjusting the other operating parameters of the transmission except for the coolant may further include steps S910 to S930, which are described in detail below:

step S910 calculates a fourth temperature difference between the bearing temperature obtained at the second time and the preset temperature threshold.

Specifically, the above embodiment is adopted, in the operation of the transmission, the temperature of the lubricating oil near the needle bearing in the transmission is obtained at a second time later than the first time as the temperature of the needle bearing obtained at the second time, and the fourth temperature difference Δt4 between the temperature T2 of the needle bearing obtained at the second time and the preset temperature threshold T is calculated.

Step S920, determining an adjustment value corresponding to the rotation speed of the transmission based on the fourth temperature difference;

in step S930, the rotational speed of the transmission is adjusted based on the adjustment value corresponding to the rotational speed of the transmission.

Specifically, with the above embodiment, at the second moment, the working condition parameters related to the cooling fluid in the transmission have been adjusted to the preset working condition limits, so that other working condition parameters except the cooling fluid related parameters in the transmission can be adjusted. For example, an adjustment value corresponding to torque of the transmission may be determined based on the fourth temperature difference Δt4.

Specifically, an adjustment value corresponding to the rotational speed of the engine of the vehicle is determined based on a second temperature difference between the bearing temperature obtained at the second moment and a preset temperature threshold, and then the rotational speed of the engine of the transmission is adjusted based on the adjustment value corresponding to the torque of the engine, so that the temperature of the needle bearing in the transmission is realized by adjusting the rotational speed of the transmission.

In this embodiment, in the running process of the transmission, when the working condition parameters related to the cooling liquid have been adjusted to the preset working condition limit value, the adjustment value of the rotation speed of the transmission can be determined through the temperature difference between the temperature of the needle bearing and the preset temperature threshold value, so that on one hand, the overhigh temperature of the needle bearing is avoided, and on the other hand, the rotation speed of the transmission is adjusted based on the adjustment value, so that the accurate adjustment of the rotation speed of the transmission is realized, and the driving experience of a driver is prevented from being influenced.

FIG. 10 is a schematic flow chart of a transmission control of a vehicle in an exemplary application scenario. In the application scenario shown in fig. 10, the bearing temperature of the transmission is obtained at the first moment through the corresponding wireless temperature measuring device, and when the first temperature difference between the bearing temperature of the transmission obtained at the first moment and the preset temperature threshold value is used for determining the adjusting value of the working condition parameter related to the cooling liquid in the transmission, so that the effect of reducing the temperature of the needle bearing is achieved by adjusting the working condition parameter related to the cooling liquid. Further, the temperature of the needle bearing is obtained at a second moment later than the first moment, if the temperature of the needle bearing obtained at the second moment rises to a preset temperature threshold value and the working condition parameters related to the cooling liquid are regulated to the preset working condition parameter limit value, a second temperature difference between the temperature of the needle bearing obtained at the second moment and the preset temperature threshold value is calculated, and then an adjusting value of torque of the transmission is determined according to the second temperature difference, so that the torque of the transmission is adjusted according to the adjusting value of the torque of the transmission, and the effect of reducing the temperature of the needle bearing is achieved. Further, the temperature of the needle bearing is obtained at a third time later than the second time, if the temperature of the needle bearing obtained at the third time rises to a preset temperature threshold value and the torque of the transmission is adjusted to the preset torque threshold value, a third temperature difference between the temperature of the needle bearing obtained at the third time and the preset temperature threshold value is calculated, and an adjustment value of the rotating speed of the transmission is calculated according to the third temperature difference, so that the rotating speed of the transmission is adjusted according to the adjustment value of the rotating speed of the transmission, and the effect of reducing the temperature of the needle bearing in the transmission is achieved. Please refer to the descriptions in the foregoing embodiments for detailed implementation, and a detailed description thereof is omitted herein.

Fig. 11 is a block diagram of a transmission control apparatus of a vehicle according to an exemplary embodiment of the present application. The apparatus may be applied to the real-time environment shown in fig. 2, and is specifically configured in the smart terminal 210. The apparatus may also be adapted to other exemplary implementation environments and may be specifically configured in other devices, and the present embodiment is not limited to the implementation environments to which the apparatus is adapted.

As shown in fig. 11, the transmission control device of the exemplary vehicle includes: a first acquisition module 1110 for acquiring a bearing temperature of the transmission at a first time; the cooling liquid adjusting module 1120 is configured to adjust a working condition parameter related to the cooling liquid in the transmission to reduce the bearing temperature if the bearing temperature acquired at the first moment is detected to rise to a preset temperature threshold; a second acquisition module 1130 for acquiring a bearing temperature of the transmission at a second time; wherein the second time is later than the first time; the working condition adjusting module 1140 is configured to adjust other working condition parameters of the transmission except the cooling liquid to reduce the bearing temperature again if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameter related to the cooling liquid reaches the preset working condition limit.

According to an aspect of the embodiment of the present application, the coolant adjustment module 1120 further includes: the first calculating unit is used for calculating a first temperature difference between the bearing temperature acquired at the first moment and a preset temperature threshold value; the first adjusting value determining unit is used for determining an adjusting value corresponding to the working condition parameter related to the cooling liquid based on the first temperature difference; and the first adjusting unit is used for adjusting the working condition parameters related to the cooling liquid based on the adjusting values corresponding to the working condition parameters related to the cooling liquid so as to reduce the temperature of the bearing.

According to an aspect of the embodiment of the present application, the coolant adjustment module 1120 further includes: the flow regulating unit is used for increasing the flow of the cooling liquid in unit time based on the regulating value of the flow if the working condition parameters comprise the flow so as to reduce the temperature of the bearing; and the flow rate adjusting unit is used for increasing the flow rate of the cooling liquid in unit time based on the adjusting value of the flow rate so as to reduce the temperature of the bearing if the working condition parameters comprise the flow rate.

According to one aspect of the embodiment of the present application, the other operating condition parameters include torque of the transmission, and the operating condition adjustment module 1140 further includes: the second calculating unit is used for calculating a second temperature difference between the bearing temperature acquired at the second moment and a preset temperature threshold value; a second adjustment value determination unit configured to determine an adjustment value corresponding to torque of the transmission based on the second temperature difference; and a second adjusting unit for adjusting the torque of the transmission based on an adjustment value corresponding to the torque of the transmission.

According to an aspect of the embodiment of the present application, the transmission control device of a vehicle described above further includes: the third acquisition module is used for acquiring the bearing temperature of the transmission at a third moment; wherein the third time is later than the second time; the third calculation unit is used for calculating a third temperature difference between the bearing temperature acquired at the third moment and the preset temperature threshold value if the bearing temperature acquired at the third moment is detected to rise to the preset temperature threshold value again and the torque of the transmission reaches the preset torque limit value; a third adjustment value determining unit configured to determine an adjustment value corresponding to a rotational speed of the transmission based on the third temperature difference; and a third adjusting unit for adjusting the rotational speed of the transmission based on an adjustment value corresponding to the rotational speed of the transmission.

According to an aspect of the embodiment of the present application, the transmission control device of a vehicle described above further includes: a fourth acquisition module for acquiring a bearing temperature of the transmission at a fourth time; wherein the fourth time is later than the third time; and the control module is used for controlling the transmission to stop working and sending the generated alarm information to the terminal equipment so as to display the alarm information on the terminal equipment if the bearing temperature acquired at the fourth moment is detected to rise to the preset temperature threshold again and the rotating speed of the transmission reaches the preset rotating speed limit value.

According to one aspect of the embodiment of the present application, the other operating condition parameters include a rotational speed of the transmission, and the operating condition adjustment module 1140 further includes: a fourth calculating unit, configured to calculate a fourth temperature difference between the bearing temperature obtained at the second moment and a preset temperature threshold; a fourth adjustment value determination unit configured to determine an adjustment value corresponding to a rotational speed of the transmission based on a fourth temperature difference; and a fourth adjusting unit for adjusting the rotational speed of the transmission based on an adjustment value corresponding to the rotational speed of the transmission.

It should be noted that, the transmission control device of the vehicle provided in the foregoing embodiment and the transmission control method of the vehicle provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module and unit perform the operation has been described in detail in the method embodiment, which is not repeated here. In practical application, the transmission control device for a vehicle provided in the above embodiment may distribute the functions to be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the functions described above, which is not limited herein.

The embodiment of the application also provides electronic equipment, which comprises: one or more processors; and a storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the transmission control method of the vehicle provided in the respective embodiments described above.

Fig. 12 shows a schematic diagram of a computer system suitable for use in implementing an embodiment of the application. It should be noted that, the computer system 1200 of the electronic device shown in fig. 12 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.

As shown in fig. 12, the computer system 1200 includes a central processing unit (Central Processing Unit, CPU) 1201 that can perform various appropriate actions and processes, such as performing the methods in the above-described embodiments, according to a program stored in a Read-Only Memory (ROM) 1202 or a program loaded from a storage section 1208 into a random access Memory (Random Access Memory, RAM) 1203. In the RAM 1203, various programs and data required for the system operation are also stored. The CPU 1201, ROM 1202, and RAM 1203 are connected to each other through a bus 1204. An Input/Output (I/O) interface 1205 is also connected to bus 1204.

The following components are connected to the I/O interface 1205: an input section 1206 including a keyboard, a mouse, and the like; an output portion 1207 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LCD), and a speaker, etc.; a storage section 1208 including a hard disk or the like; and a communication section 1209 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 1209 performs communication processing via a network such as the internet. The drive 1210 is also connected to the I/O interface 1205 as needed. A removable medium 1211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed as needed on the drive 1210 so that a computer program read out therefrom is installed into the storage section 1208 as needed.

In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication portion 1209, and/or installed from the removable media 1211. When executed by a Central Processing Unit (CPU) 1201, performs the various functions defined in the system of the present application.

It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

Another aspect of the application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a transmission control method for a vehicle as before. The computer-readable storage medium may be included in the electronic device described in the above embodiment or may exist alone without being incorporated in the electronic device.

Another aspect of the application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions so that the computer device executes the transmission control method of the vehicle provided in the above-described respective embodiments.

The foregoing is merely illustrative of the preferred embodiments of the present application and is not intended to limit the embodiments of the present application, and those skilled in the art can easily make corresponding variations or modifications according to the main concept and spirit of the present application, so that the protection scope of the present application shall be defined by the claims.

Claims (10)

1. A transmission control method of a vehicle, characterized by comprising:

acquiring a bearing temperature of the transmission at a first time;

if the bearing temperature acquired at the first moment is detected to rise to a preset temperature threshold value, adjusting working condition parameters related to cooling liquid in the transmission to reduce the bearing temperature;

acquiring a bearing temperature of the transmission at a second moment; wherein the second time is later than the first time;

and if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameters related to the cooling liquid reach the preset working condition limit value, adjusting other working condition parameters of the transmission except the cooling liquid so as to reduce the bearing temperature again.

2. The method of claim 1, wherein said adjusting a coolant related operating parameter within said transmission to reduce said bearing temperature comprises:

calculating a first temperature difference between the bearing temperature obtained at the first moment and the preset temperature threshold;

determining an adjustment value corresponding to a condition parameter associated with the coolant based on the first temperature difference;

And adjusting the working condition parameters related to the cooling liquid based on the adjusting values corresponding to the working condition parameters related to the cooling liquid so as to reduce the temperature of the bearing.

3. The method of claim 2, wherein said adjusting said coolant related operating parameter based on an adjustment value corresponding to said coolant related operating parameter to reduce said bearing temperature comprises:

if the working condition parameters comprise flow, increasing the flow of the cooling liquid in unit time based on the flow regulating value so as to reduce the temperature of the bearing;

and if the working condition parameters comprise the flow rate, increasing the flow rate of the cooling liquid in unit time based on the adjustment value of the flow rate so as to reduce the temperature of the bearing.

4. A method according to any one of claims 1 to 3, wherein the other operating parameters include torque of the transmission; the adjusting other working condition parameters of the transmission except for cooling liquid comprises the following steps:

calculating a second temperature difference between the bearing temperature obtained at the second moment and the preset temperature threshold;

determining an adjustment value corresponding to torque of the transmission based on the second temperature difference;

And adjusting the torque of the transmission based on an adjustment value corresponding to the torque of the transmission.

5. The method of claim 4, wherein the method further comprises:

acquiring a bearing temperature of the transmission at a third moment; wherein the third time is later than the second time;

if the bearing temperature acquired at the third moment is detected to rise to the preset temperature threshold again and the torque of the transmission reaches the preset torque limit value, calculating a third temperature difference between the bearing temperature acquired at the third moment and the preset temperature threshold;

determining an adjustment value corresponding to a rotational speed of the transmission based on the third temperature difference;

and adjusting the rotating speed of the transmission based on the adjusting value corresponding to the rotating speed of the transmission.

6. The method of claim 5, wherein the method further comprises:

acquiring a bearing temperature of the transmission at a fourth time; wherein the fourth time is later than the third time;

and if the bearing temperature acquired at the fourth moment is detected to rise to the preset temperature threshold again and the rotating speed of the transmission reaches the preset rotating speed limit value, controlling the transmission to stop working, and sending the generated alarm information to the terminal equipment so as to display the alarm information on the terminal equipment.

7. A method according to any one of claims 1 to 3, wherein the other operating parameters include rotational speed of the transmission; the adjusting other working condition parameters of the transmission except for cooling liquid comprises the following steps:

calculating a fourth temperature difference between the bearing temperature obtained at the second moment and the preset temperature threshold;

determining an adjustment value corresponding to a rotational speed of the transmission based on the fourth temperature difference;

and adjusting the rotating speed of the transmission based on the adjusting value corresponding to the rotating speed of the transmission.

8. A transmission control apparatus of a vehicle, characterized by comprising:

the first acquisition module is used for acquiring the bearing temperature of the transmission at a first moment;

the cooling liquid adjusting module is used for adjusting working condition parameters related to cooling liquid in the transmission to reduce the bearing temperature if the bearing temperature acquired at the first moment is detected to rise to a preset temperature threshold;

the second acquisition module is used for acquiring the bearing temperature of the transmission at a second moment; wherein the second time is later than the first time;

and the working condition adjusting module is used for adjusting other working condition parameters of the transmission except the cooling liquid to reduce the bearing temperature again if the bearing temperature acquired at the second moment is detected to rise to the preset temperature threshold again and the working condition parameters related to the cooling liquid reach the preset working condition limit value.

9. An electronic device, comprising:

one or more processors;

storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the transmission control method of the vehicle of any one of claims 1 to 7.

10. A computer-readable storage medium having stored thereon computer-readable instructions that, when executed by a processor of a computer, cause the computer to perform the transmission control method of the vehicle of any one of claims 1 to 7.