CN112092797A

CN112092797A - Gear shifting control method and device based on multiple dimensions, vehicle and medium

Info

Publication number: CN112092797A
Application number: CN202011011070.9A
Authority: CN
Inventors: 伍庆龙; 张天强
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2020-12-18
Anticipated expiration: 2040-09-23
Also published as: WO2022062572A1; CN112092797B

Abstract

The invention discloses a gear shifting control method and device based on multiple dimensions, a vehicle and a medium. The method comprises the following steps: when the vehicle runs, judging the gear shifting requirement of the vehicle according to the acquired vehicle running state, driving behavior state and road condition environment state; if the vehicle needs to be shifted, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state; and shifting the vehicle according to the target gear information to realize the gear shifting control of the vehicle. According to the scheme, the target gear information can be determined according to the vehicle running state, the running behavior state and the road condition environment state, and gear shifting control is performed based on the target gear information, so that the problem that influence on gear shifting is caused by the fact that external influence factors in the vehicle driving process are not considered in the prior art is solved, and automatic gear shifting adjustment is performed according to the external influence factors.

Description

Gear shifting control method and device based on multiple dimensions, vehicle and medium

Technical Field

The embodiment of the invention relates to a vehicle technology, in particular to a gear shifting control method and device based on multiple dimensions, a vehicle and a medium.

Background

Currently, the automobile industry is developing towards "new quartification", which refers to electromotion, networking, intelligence and sharing. The energy-saving travel is realized on the basis of electromotion, the big data sharing is realized by using internet as a link, and the wonderful travel is realized by using intellectualization as a direction, so that the energy-saving travel becomes a feasible way for realizing the ultimate intelligent driving and riding target of the automobile. Compared with the traditional automobile, the new energy automobile has some advantages in the process of promoting 'new quartification', and in the automobile development process with artificial intelligence or automatic driving functions, the driving performance and the dynamic performance of the automobile are influenced to a great extent by slow gear shifting and gear shifting delay of the automobile, so that active intelligent gear shifting control is a key problem which needs to be solved.

In the prior art, parameters influencing gear shifting can be determined based on the running state of the vehicle, and then the design and the calling of a gear shifting table are carried out. However, in the prior art, the condition that external influence factors influence gear shifting in the driving process of the vehicle is not considered, and automatic gear shifting adjustment cannot be performed according to the external influence factors.

Disclosure of Invention

The invention provides a gear shifting control method, a gear shifting control device, a vehicle and a medium based on multiple dimensions, and aims to realize automatic gear shifting adjustment according to external influence factors.

In a first aspect, an embodiment of the present invention provides a shift control method based on multiple dimensions, where the method includes:

when the vehicle runs, judging the gear shifting requirement of the vehicle according to the acquired vehicle running state, driving behavior state and road condition environment state;

if the vehicle needs to be shifted, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state;

and shifting the vehicle according to the target gear information to realize the gear shifting control of the vehicle.

In a second aspect, an embodiment of the present invention further provides a shift control device based on multiple dimensions, including: a determination module, and a shift module, wherein,

the judging module is used for judging the gear shifting requirement of the vehicle according to the acquired vehicle running state, driving behavior state and road condition environment state when the vehicle runs;

the determining module is used for determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state if the vehicle needs to be shifted;

and the gear shifting module is used for shifting the vehicle according to the target gear information to realize gear shifting control of the vehicle.

In a third aspect, an embodiment of the present invention further provides a vehicle, including:

one or more processors;

storage means for storing one or more programs;

the sensor device is used for acquiring the driving state, the driving behavior state and the road condition environment state of the vehicle;

when executed by the one or more processors, cause the one or more processors to implement the multi-dimensional based shift control method according to the first aspect.

In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions for performing the multi-dimensional based shift control method according to the first aspect when executed by a computer processor.

According to the method, when the vehicle runs, the gear shifting requirement of the vehicle is judged according to the obtained vehicle running state, driving behavior state and road condition environment state; if the vehicle needs to be shifted, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state; according to the target gear information, the vehicle is shifted, the shifting control of the vehicle is achieved, the problem that influence of external influence factors on shifting in the driving process of the vehicle is not considered in the prior art is solved, and automatic shifting adjustment is achieved according to the external influence factors.

Drawings

FIG. 1 is a block diagram of a dual motor hybrid vehicle powertrain provided by the present invention;

FIG. 2 is a block diagram of a shift control system for a dual motor hybrid vehicle in accordance with the present invention;

FIG. 3 is a flowchart of a multi-dimensional shift control method according to an embodiment of the present invention;

fig. 4 is a diagram of an intelligent networking information acquisition system according to an embodiment of the present invention;

FIG. 5 is a flowchart of a multi-dimensional shift control method according to a second embodiment of the present invention;

fig. 6 is a flowchart illustrating an implementation of a multi-dimensional shift control method according to a second embodiment of the present invention;

fig. 7 is a structural diagram of a gear shift control device based on multiple dimensions according to a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like. In addition, the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.

This application can be used for solving hybrid vehicle and shifting under different driving operating modes and based on road conditions prediction upshift and downshift, shifts according to inside and outside multidimension degree parameter state initiative control vehicle to improve the quality of shifting, avoid power to break, provide more superior driving feel, comfort and energy consumption for the driver and save the effect.

Fig. 1 is a structural diagram of a dual-motor hybrid vehicle power system provided by the present invention, and as shown in fig. 1, the dual-motor power system of the hybrid vehicle may include an engine, a first motor, a second motor, a power battery, a clutch, an integrated inverter, a transmission, and the like, where the engine is connected to the transmission through the clutch, the first motor is connected to the engine, the second motor is connected to the transmission, and the power battery supplies power to the first motor and the second motor through the integrated inverter.

Fig. 2 is a structural diagram of a shift Control system of a dual-motor Hybrid vehicle according to the present invention, and as shown in fig. 2, an intelligent network connection Control system may monitor a vehicle driving state, a driving behavior state, and a road condition environment state, process data, and send state information to a Hybrid Control Unit (HCU) controller, and the HCU may actively identify a shift timing and predict a shift based on the state information, the engine parameter information, the first motor parameter information, the transmission parameter information, and the battery parameter information provided by the intelligent network connection Control system.

The engine parameter information may include rotation speed, torque, throttle opening and the like, the first motor parameter may include rotation speed, torque, current, voltage and the like, the transmission parameter information may include rotation speed, torque and the like of an output shaft, and the battery parameter information may include state of charge, current, voltage and the like.

The shift Control System may include an HCU, an Engine Management System (EMS), a first Motor controller (MCU 1), a second Motor controller (MCU 2), a Battery Management System (BMS), a Transmission Control Unit (TCU), and the like. The controllers CAN communicate with each other through a CAN network. The collection of the relevant vehicle parameters can be realized by sensors and other devices. The sensors and controller may also communicate via a CAN network.

Additionally, the powertrain architecture of the hybrid vehicle may include the P3 architecture. The second motor of the P3 framework can be positioned at the output end of the gearbox, the motor power assisting efficiency and the kinetic energy recovery efficiency are high, and the quick acceleration effect is very direct. The power transmission path of the P3 framework does not pass through the gearbox, the motor power assisting efficiency and the braking energy recovery efficiency are higher, meanwhile, the working time of the gearbox is reduced, and the service life of the gearbox is prolonged.

Example one

Fig. 3 is a flowchart of a multidimensional-based shift control method according to a first embodiment of the present invention, where this embodiment is applicable to a situation in which no influence of external influence factors on shifting in a vehicle driving process is considered in the prior art, and the method may be executed by a vehicle system, and specifically includes the following steps:

and 310, when the vehicle runs, judging the gear shifting requirement of the vehicle according to the acquired vehicle running state, driving behavior state and road condition environment state.

The external influence factors in the driving process of the vehicle can comprise the driving state of the vehicle, the driving behavior state and the road condition environment state, and the external influence factors can influence the gear shifting of the vehicle. Therefore, whether the vehicle needs to be shifted or not can be judged according to the running state, the driving behavior state and the road condition environment state of the vehicle.

The vehicle running state can be determined according to vehicle speed information, acceleration information, gear information and weight information in the running process of the vehicle. The driving behavior state may include: a driving mode and a driving type, the driving mode may include a vehicle operation mode manually selected by a driver through a key, for example, the driving mode may include an economy mode, a sport mode, a snow mode, and the like; the driving type can comprise big data collected through intelligent internet, and driving behaviors used for the driving type can be judged through background storage of the big data based on data indexes of driving performance of the driver, for example, the driving type can comprise an aggressive type, a normal type, a mild type and the like, and the data indexes of the driving performance of the driver can comprise an accelerator, a stepping frequency of a brake pedal, a stepping degree of the brake pedal, a vehicle speed, an acceleration and the like. The road condition environment can comprise ground adhesion coefficient, steering driving, traffic light distribution condition and distance, front congestion condition and the like.

Fig. 4 is a diagram of an intelligent network connection information acquisition system according to an embodiment of the present invention, as shown in fig. 4, a vehicle driving state, a driving behavior state, and a road condition environment state can all be detected by a sensor, and an intelligent network connection control system can acquire and monitor the vehicle driving state, the driving behavior state, and the road condition environment state by the sensor.

And 320, if the vehicle needs to be shifted, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state.

After at least one of the vehicle driving state, the driving behavior state and the road condition environment state meets the gear shifting requirement, the vehicle can shift gears. Target gear information can be searched in a preset gear shifting rule table according to the current vehicle running state, the current driving behavior state and the current road condition environment state.

The preset gear shifting information table can comprise a plurality of gear shifting information tables, and the preset gear shifting information table can be stored in an internal module of the whole vehicle control unit.

It should be noted that, target gear information may also be searched in the preset gear shift schedule according to the states of the engine and the first motor. In order to make the searched target gear information more accurate, the target gear information can be searched in the preset gear shifting rule table according to the vehicle driving state, the driving behavior state, the road condition environment state and the states of the engine and the first motor.

And 330, shifting the vehicle according to the target gear information to realize gear shifting control of the vehicle.

After the target gear information is determined, the current gear is adjusted to the target gear according to the difference between the current gear and the target gear, and gear shifting control of the vehicle is achieved.

The target gear information may include a first rotational speed and a first torque of the engine and a second rotational speed and a second torque of the first motor, among others. According to the first rotating speed and the second rotating speed, the output rotating speed of the gearbox can be determined; from the first torque and the second torque, an output torque of the gearbox may be determined. According to the output rotating speed of the gearbox and the output torque of the gearbox, gear shifting control of the vehicle can be achieved.

In addition, because the power interruption phenomenon may exist when the vehicle is shifted, the output torque of the gearbox can be compensated through the second motor during the shifting of the vehicle. The power interruption phenomenon in the gear shifting process is reduced, the drivability, the comfort and the fuel economy of the hybrid vehicle are improved, and the gear shifting quality is improved.

According to the technical scheme of the embodiment, when a vehicle runs, the gear shifting requirement of the vehicle is judged according to the acquired vehicle running state, driving behavior state and road condition environment state; if the vehicle needs to be shifted, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state; according to the target gear information, the vehicle is shifted, the shifting control of the vehicle is achieved, the problem that influence of external influence factors on shifting in the driving process of the vehicle is not considered in the prior art is solved, and automatic shifting adjustment is achieved according to the external influence factors.

Example two

Fig. 5 is a flowchart of a multi-dimensional shift control method according to a second embodiment of the present invention, which is embodied on the basis of the second embodiment. In this embodiment, the method may include:

and 510, when the vehicle runs, judging the gear shifting requirement of the vehicle according to the acquired vehicle running state, driving behavior state and road condition environment state.

In one embodiment, step 510 may specifically include:

and judging whether the vehicle needs to shift according to the speed information, the acceleration information, the gear information and the weight information of the vehicle.

Specifically, the sensor can acquire speed information, acceleration information, gear information and weight information of the vehicle and transmit information data to the intelligent internet control system, and the intelligent internet control system can process and judge the information data. And if the data range of the information data is changed, judging that the vehicle needs to be shifted. I.e. the speed range of the vehicle is changed, the acceleration range is changed, the gear is changed or the weight is changed.

It should be noted that a plurality of data ranges may be preset according to the actual vehicle. In addition, whether the vehicle needs to be shifted can also be determined by setting a plurality of data thresholds. For example, when the speed is greater than the first speed or less than the second threshold, the vehicle needs to shift, and whether the vehicle needs to shift or not is determined by the other data information through the threshold, which is not described herein again.

And judging whether the vehicle needs to be shifted according to whether the driving mode and/or the driving type are changed.

Specifically, the specific classification of the driving pattern and the driving type has been explained in the first embodiment, and the classification herein may be consistent with the classification in the first embodiment.

When the sensor detects that the driving mode or the driving type of the vehicle changes, it is judged that the vehicle needs to be shifted.

The driving type can be determined according to a specific driver, the HCU can store the driving type of a driver commonly used by the vehicle, and after the sensor detects data information included in the driving type and uploads the data information to the HCU, the HCU can judge the driver based on the data information and further judge the driving type. When the driver is a strange driver, the HCU may determine the driving type according to big data stored in the database.

And judging whether the vehicle needs to shift according to the road condition and environment state information.

Specifically, the road condition environment state in front of the vehicle is known in advance based on Global Positioning System (GPS) navigation data by utilizing the radar and the camera, gear shifting is carried out according to the road condition environment state, predicted gear shifting information is sent to the intelligent internet control System, and emergency gear shifting is avoided when a crowded road section is reached.

The intelligent network control system can remind a driver through an instrument or an entertainment system, and the reminding information can comprise an upshift reminding in the accelerating running process of the vehicle, a downshift reminding in the braking and decelerating process of the vehicle, a neutral reminding in the high-speed sliding process, a neutral reminding in the parking process and the like.

In addition, the HCU can acquire information such as the running state information of the vehicle, the running state information of the vehicle ahead, the time of traffic lights at a crossing and the like in real time through an intelligent network connection control system (comprising sensing equipment, communication equipment and the like) assembled on the vehicle. For example, when the front is detected to be a traffic light intersection or the distance between the vehicle and the front vehicle is smaller than the preset distance and the speed difference between the vehicle and the front vehicle is smaller than the preset speed, the downshift control can be performed; when the vehicle is positioned at the intersection of the traffic lights, the GPS navigation data can be utilized to calculate the parking waiting time, and the distance between the vehicle and the front vehicle is judged to be larger than the preset distance or the speed difference value exceeds the preset difference value, so that the gear-up control can be carried out.

And step 520, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state.

In one embodiment, step 520 may specifically include:

and calling a preset gear shifting schedule after the vehicle is determined to need to be shifted.

Specifically, after it is determined that the vehicle requires a gear shift, a preset shift schedule stored in the HCU is recalled. The gear shifting rule table can determine corresponding target gear information according to the vehicle running state, the driving behavior state and the road condition environment state or the state information of the engine and the motor.

The shift schedule may include MAP 1-MAPN.

And searching corresponding target gear information in the gear shifting rule table based on the vehicle running state, the driving behavior state and the road condition environment state.

Specifically, the corresponding target gear information can be determined according to the data range of the information data of the vehicle driving state, the driving behavior state and the road condition environment state.

And step 530, shifting the vehicle according to the target gear information to realize gear shifting control of the vehicle.

In one embodiment, before the vehicle is shifted in step 530, the method may further include:

a torque compensation value is determined based on the input driver demand torque, the detected current engine torque, and the detected current transmission input torque.

Specifically, the calculation of the torque compensation value may be implemented by the HCU torque distribution module.

And according to the torque compensation value, performing torque compensation on the current output torque of the gearbox, and determining the target output torque of the gearbox.

Specifically, the current output torque of the gearbox can be subjected to torque compensation through the second motor, and the power interruption phenomenon caused by the fact that the clutch is opened in the gear shifting process can be reduced by performing the torque compensation on the current output torque of the gearbox.

In one embodiment, step 530 may specifically include:

and determining a first target rotating speed and a first target torque of the engine and a second target rotating speed and a second target torque of the first motor according to the target gear information.

Specifically, the target gear information may include a first target rotation speed and a first target torque of the engine and a second target rotation speed and a second target torque of the first motor. Corresponding first target rotating speed, first target torque, second target rotating speed and second target torque can be determined according to the target gear information.

Determining a target output speed of the gearbox and a target output torque of the gearbox based on the first target speed, the first target torque, the second target speed and the second target torque.

Specifically, the target output rotational speed of the transmission may be determined from the first target rotational speed and the second target rotational speed, and the target output torque of the transmission may be determined from the first target torque and the second target torque.

And shifting the vehicle according to the target output rotating speed of the gearbox and the target output torque of the gearbox to realize the gear shifting control of the vehicle.

In particular, the output shaft of the gearbox may be connected to the axle, and the vehicle gear may be adjusted via the output shaft of the gearbox.

In one embodiment, shifting a vehicle according to a target output speed of a transmission and a target output torque of the transmission to achieve shift control of the vehicle may include:

after torque down of the engine and the first electric machine, the clutch is opened.

Specifically, the torque after torque down may be preset according to the actual vehicle type.

The engine and the motor are subjected to torque reduction before gear shifting, so that the rotating speeds of the engine and the motor can be stabilized, and acceleration sudden change is reduced.

And respectively regulating the speed of the engine and the first motor based on the first target rotating speed and the second target rotating speed.

Specifically, the rotational speeds of the engine and the first motor are adjusted from the current rotational speed to a first target rotational speed and a second target rotational speed, respectively.

The adjustment of the rotational speed can be realized by the first motor and the second motor.

And in a first preset time period, if the output rotating speed of the gearbox keeps the target output rotating speed, closing the clutch.

Specifically, the output speed of the transmission maintains the target output speed, and the clutch may be closed when the output speed is unchanged for a first preset time period.

The target output rotation speed may include a target output rotation speed range greater than and less than a target output rotation speed preset value.

The first preset time period is not specifically limited herein, and may be set according to a specific vehicle type.

And in a second preset time period, if the output torque of the gearbox keeps the target output torque, finishing the gear shifting of the vehicle and realizing the gear shifting control of the vehicle.

Specifically, when the output torque of the transmission maintains the target output torque and remains unchanged for a second preset time period, the gear shift is completed.

The target output torque may include a range of target output torques greater than and less than a preset value of target output torque.

The second preset time period is not specifically limited herein, and may be set according to a specific vehicle type.

In one embodiment, the clutch is closed if the output rotation speed of the transmission maintains a target output rotation speed during a first preset time period; in a second preset time period, if the output torque of the transmission keeps the target output torque, completing the vehicle gear shifting, and implementing the gear shifting control of the vehicle, may include:

and in a first preset time period, if the rotating speeds of the engine and the first motor are respectively kept at a first target rotating speed and a second target rotating speed, closing the clutch.

Specifically, the clutch may be closed after the sensor detects that the rotational speeds of the engine and the first motor are the first target rotational speed and the second target rotational speed, respectively.

And in a second preset time period, if the torques of the engine and the first motor respectively keep a first target torque and a second target torque, finishing the gear shifting of the vehicle and realizing the gear shifting control of the vehicle.

Specifically, after the sensors detect that the torques of the engine and the first motor are respectively the first target torque and the second target torque, the gear shifting can be completed.

According to the technical scheme of the embodiment, whether the vehicle needs to be shifted is judged according to speed information, acceleration information, gear information and weight information of the vehicle; judging whether the vehicle needs to shift gears according to whether the driving mode and/or the driving type are changed; judging whether the vehicle needs to shift gears according to the road condition and environment state information; after the fact that the vehicle needs to be shifted is determined, a preset shifting rule table is called; searching corresponding target gear information in the gear shifting rule table based on the vehicle running state, the driving behavior state and the road condition environment state; determining a first target rotating speed and a first target torque of an engine and a second target rotating speed and a second target torque of a first motor according to the target gear information; determining a target output rotation speed of the gearbox and a target output torque of the gearbox based on the first target rotation speed, the first target torque, the second target rotation speed and the second target torque; meanwhile, determining a torque compensation value based on the input driver demand torque, the detected current torque of the engine and the detected current input torque of the gearbox; according to the torque compensation value, performing torque compensation on the current output torque of the gearbox to determine the target output torque of the gearbox; opening a clutch after torque down of the engine and the first electric machine; respectively regulating the speed of the engine and the first motor based on the first target rotating speed and the second target rotating speed; within a first preset time period, if the output rotating speed of the gearbox keeps the target output rotating speed, closing the clutch; and in a second preset time period, if the output torque of the gearbox keeps the target output torque, finishing the gear shifting of the vehicle and realizing the gear shifting control of the vehicle. The problem of prior art do not consider the external influence factor of vehicle driving in-process and cause the condition of influence to shifting is solved, realize carrying out the automatic adjustment of shifting according to external influence factor. And the torque compensation of the second motor reduces the power interruption of gear shifting. Compared with the prior art, the scheme is more comprehensive and effective, and the gear shifting quality, the driving performance and the comfort of the vehicle are improved more.

Fig. 6 is a flowchart of an implementation of a multi-dimensional shift control method according to a second embodiment of the present invention, and an implementation manner of the shift control method is exemplarily shown. As shown in figure 6 of the drawings,

and step 610, acquiring a vehicle driving state, a driving behavior state and a road condition environment state by a sensor, and uploading to the HCU through the intelligent network connection control system.

And step 620, the HCU judges that the vehicle needs to be shifted based on the multi-dimensional parameter information.

Specifically, the multidimensional parameter information may include vehicle driving state information, driving behavior state information, and road condition environment state information.

And step 630, the HCU calls a gear shifting rule graph in the gear shifting module and determines target gear information according to the multi-dimensional parameter information.

Step 640, if the target gear is lower than the current gear, calling a downshift control module to realize downshift control; otherwise, calling the upshift control module to realize upshift control.

Specifically, in the gear shifting process, the second motor can be called to perform torque compensation on the output torque of the gearbox, and the phenomenon of power interruption of a vehicle in the gear shifting process is reduced.

In addition, the first motor and the second motor can be controlled to regulate the speed of the engine and the first motor, so that the rotation speed is regulated.

According to the technical scheme of the implementation mode, a vehicle driving state, a driving behavior state and a road condition environment state are obtained through a sensor and are uploaded to an HCU through an intelligent network connection control system, the HCU judges that the vehicle needs to be shifted based on multi-dimensional parameter information, the HCU calls a shifting rule graph in a shifting module, target gear information is determined according to the multi-dimensional parameter information, and if the target gear is lower than the current gear, a downshift control module is called to realize downshift control; otherwise, calling the upshift control module to realize upshift control. The problem of prior art do not consider the external influence factor of vehicle driving in-process and cause the condition of influence to shifting is solved, realize carrying out the automatic adjustment of shifting according to external influence factor. And the torque compensation of the second motor reduces the power interruption of gear shifting. Compared with the prior art, the scheme is more comprehensive and effective, and the gear shifting quality, the driving performance and the comfort of the vehicle are improved more.

EXAMPLE III

Fig. 7 is a structural diagram of a gear shift control device based on multiple dimensions according to a third embodiment of the present invention, where the device may be applied to a situation where no influence of external influence factors on gear shifting is considered in a vehicle driving process in the prior art, so as to improve gear shift accuracy and efficiency. The device may be implemented by software and/or hardware and is typically integrated into a vehicle system.

As shown in fig. 7, the apparatus includes: a decision module 710, a determination module 720, and a shift module 730, wherein,

the judging module 710 is configured to judge a gear shifting requirement of a vehicle according to the acquired vehicle driving state, driving behavior state and road condition environment state when the vehicle runs;

a determining module 720, configured to determine target gear information of the vehicle according to the vehicle driving state, the driving behavior state, and the road condition environment state if the vehicle needs to shift gears;

and the gear shifting module 730 is used for shifting the vehicle according to the target gear information to realize gear shifting control of the vehicle.

According to the gear shifting control device based on multiple dimensions, when a vehicle runs, the gear shifting requirement of the vehicle is judged according to the acquired vehicle running state, driving behavior state and road condition environment state; if the vehicle needs to be shifted, determining target gear information of the vehicle according to the vehicle running state, the driving behavior state and the road condition environment state; according to the target gear information, the vehicle is shifted, the shifting control of the vehicle is achieved, the problem that external influence factors in the driving process of the vehicle influence shifting in the prior art is solved, and automatic shifting adjustment is achieved according to the external influence factors.

On the basis of the foregoing embodiment, the determining module 710 is specifically configured to:

judging whether the vehicle needs to shift or not according to the speed information, the acceleration information, the gear information and the weight information of the vehicle;

judging whether the vehicle needs to shift gears according to whether the driving mode and/or the driving type are changed;

On the basis of the foregoing embodiment, the determining module 720 is specifically configured to:

after the fact that the vehicle needs to be shifted is determined, a preset shifting rule table is called;

On the basis of the above embodiment, the shift module 730 is specifically configured to:

determining a first target rotating speed and a first target torque of an engine and a second target rotating speed and a second target torque of a first motor according to the target gear information;

determining a target output rotation speed of the gearbox and a target output torque of the gearbox based on the first target rotation speed, the first target torque, the second target rotation speed and the second target torque;

opening a clutch after torque down of the engine and the first electric machine;

respectively regulating the speed of the engine and the first motor based on the first target rotating speed and the second target rotating speed;

within a first preset time period, if the output rotating speed of the gearbox keeps the target output rotating speed, closing the clutch;

within a first preset time period, if the rotating speeds of the engine and the first motor are respectively kept at a first target rotating speed and a second target rotating speed, closing the clutch;

On the basis of the above embodiment, the apparatus may further include: a first execution module and a second execution module, wherein,

a first execution module for determining a torque compensation value based on an input driver demand torque, a detected current engine torque and a detected current gearbox input torque;

and the second execution module is used for performing torque compensation on the current output torque of the gearbox according to the torque compensation value and determining the target output torque of the gearbox.

The gear shifting control device based on the multiple dimensions provided by the embodiment of the invention can execute the gear shifting control method based on the multiple dimensions provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

Example four

Fig. 8 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention, as shown in fig. 8, the vehicle includes a processor 810, a memory 820, and a sensing device 830; the number of processors 810 in the vehicle may be one or more, and one processor 810 is taken as an example in fig. 8; the processor 810, memory 820, and sensing device 830 in the vehicle may be connected by a bus or other means, as exemplified by the bus connection in fig. 8.

The memory 820 may be used as a computer readable storage medium for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the multi-dimensional based shift control method in the embodiments of the present invention (e.g., the determining module 710, the determining module 720, and the shifting module 730 in the multi-dimensional based shift control device). The processor 810 executes various functional applications and data processing of the vehicle, i.e., implementing the multi-dimensional based shift control method described above, by executing software programs, instructions, and modules stored in the memory 820.

The memory 820 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 820 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 820 may further include memory located remotely from the processor 810, which may be connected to a device/terminal/server through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

And the sensor device 830 is used for acquiring the driving state, the driving behavior state and the road condition environment state of the vehicle.

The vehicle provided by the embodiment of the invention can execute the gear shifting control method based on multiple dimensions, and has corresponding functions and beneficial effects.

EXAMPLE five

Fifth, an embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a multidimensional-based shift control method, the method including:

Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the multi-dimensional shift control method provided by any embodiments of the present invention.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

It should be noted that, in the embodiment of the above search apparatus, each included unit and module are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A multi-dimensional based shift control method, comprising:

2. The multidimensional-based gear shifting control method according to claim 1, wherein judging the gear shifting requirement of the vehicle according to the acquired vehicle driving state, driving behavior state and road condition environment state comprises:

3. The multidimensional-based gear shift control method according to claim 1, wherein determining the target gear information of the vehicle according to the vehicle driving state, the driving behavior state and the road and environment state comprises:

4. The multidimensional-based shift control method according to claim 1, wherein when the shift control of the vehicle is implemented by shifting the vehicle according to the target gear information, the shift control method comprises:

determining a torque compensation value based on the input driver demand torque, the detected current engine torque and the detected current gearbox input torque;

5. The multidimensional-based gear shifting control method according to claim 4, wherein the vehicle is shifted according to the target gear information, so that gear shifting control of the vehicle is realized, and the method comprises the following steps:

6. The multidimensional-based gear shifting control method according to claim 5, wherein the vehicle is shifted according to the target output rotating speed of the gearbox and the target output torque of the gearbox, so as to realize the gear shifting control of the vehicle, and the method comprises the following steps:

7. The multidimensional-based shift control method according to claim 6, wherein the clutch is closed if an output rotation speed of the transmission maintains a target output rotation speed during a first preset time period; in a second preset time period, if the output torque of the transmission keeps the target output torque, the vehicle gear shifting is completed, and the gear shifting control of the vehicle is realized, and the method comprises the following steps:

8. A multi-dimensional based shift control device, comprising: a determination module, and a shift module, wherein,

9. A vehicle, characterized in that the vehicle comprises:

one or more processors;

storage means for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement a multi-dimensional based shift control method as recited in any of claims 1-7.

10. A storage medium containing computer executable instructions for performing the multi-dimensional based shift control method of any one of claims 1-7 when executed by a computer processor.