CN112693325A - Vehicle upshift and shift control method and device, electronic equipment and readable storage medium - Google Patents
Vehicle upshift and shift control method and device, electronic equipment and readable storage medium Download PDFInfo
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- CN112693325A CN112693325A CN202110026112.4A CN202110026112A CN112693325A CN 112693325 A CN112693325 A CN 112693325A CN 202110026112 A CN202110026112 A CN 202110026112A CN 112693325 A CN112693325 A CN 112693325A
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- 238000004590 computer program Methods 0.000 claims description 17
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Automation & Control Theory (AREA)
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- Power Engineering (AREA)
- Control Of Transmission Device (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention provides a vehicle gear-up and gear-shifting control method and device, electronic equipment and a readable storage medium. The vehicle upshift shift control method includes: and when the first battery management system fault information represents that the rechargeable power of the battery is zero and the request motor gear-up is identified according to the vehicle motor gear-up request, executing a special working condition motor gear-shifting control mode to control the motor controller to enter an active short-circuit state and complete gear-up and gear-shifting. Through when first battery management system fault information representation battery chargeable power is zero and the motor rises the gear operating mode and satisfies, carry out special operating mode motor shift control mode, under the circumstances of guaranteeing to accomplish smoothly to rise to shift gears, can avoid the motor that the motor rose the speed governing in-process to produce the electric current to pour into whole car battery, and then reach the life of extension battery, promote the safety in utilization of battery.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle upshift and shift control method and device, electronic equipment and a readable storage medium.
Background
The battery management system of the hybrid electric vehicle can feed back self chargeable power and self discharge power in real time according to the self state. In the existing hybrid electric vehicle, a motor gear is generally provided with a plurality of gears so as to improve the efficiency of an electric drive system.
In the related art, when the Vehicle power mode is an electric only mode and the Vehicle speed is increased and a higher motor gear needs to be switched, the rotating speed of the motor needs to be reduced by matching with a gear speed ratio, and the process is realized by the motor controller responding to a rotating speed request self-control rotating speed adjustment of a VCU (Vehicle control unit). Through the above working condition analysis, the motor at this moment operates in the fourth quadrant, the generated current can be poured into the battery of the whole vehicle, and when the battery management system causes that the self chargeable power is zero due to self fault or SOC (state of charge) limitation, transient battery overcharge can be caused, and the service life of the battery is further influenced.
Disclosure of Invention
The embodiment of the invention provides a vehicle gear-up and gear-shifting control method, aiming at solving the problem of battery overcharge under the special conditions.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a vehicle upshift control method, including:
acquiring a vehicle motor gear shift-up request of fault information of a battery management system;
and when the fault information of the battery management system indicates that the rechargeable power of the battery is zero and the request motor is identified to be shifted up according to the gear shifting request of the vehicle motor, executing a special working condition motor gear shifting control mode to control the motor controller to enter an active short circuit state and finish shifting up and shifting.
Optionally, the step of executing the special condition motor shift control mode includes:
acquiring a current vehicle speed, and performing torque zero clearing when the current vehicle speed reaches a gear-up and gear-shifting vehicle speed;
when the torque is cleared, the motor shaft is controlled to be separated from the synchronizer;
controlling a motor controller to enter an active short-circuit state;
acquiring the rotating speed of a motor, and controlling a motor controller to exit the active short-circuit state and execute a rotating speed mode when the rotating speed of the motor is reduced to a gear shifting rotating speed;
controlling the gearbox to upshift and controlling the motor shaft and the synchronizer to close.
Optionally, the step of executing the rotation speed mode includes:
and controlling the rotating speed of the motor to be constant as the gear shifting rotating speed, and executing torque zero clearing.
Optionally, before the step of controlling the motor shaft and the synchronizer to be closed, the method further comprises:
acquiring battery information;
and when the battery information represents that the chargeable power of the battery is not zero, exiting the special working condition motor gear shifting control mode after executing the special working condition motor gear shifting control mode.
Optionally, after the step of performing torque zeroing, the method further comprises:
if the duration of executing torque zero clearing exceeds a first preset duration, outputting fault alarm information;
prior to the step of controlling the motor shaft to disengage from the synchronizer, the method further comprises:
if the time length of the motor shaft and the synchronizer for disengagement exceeds a second preset time length, outputting fault alarm information;
after the step of obtaining the motor speed, the method further comprises:
and if the time length of the motor rotating speed reduced to the gear shifting rotating speed exceeds a third preset time length, outputting fault alarm information.
In a second aspect, an embodiment of the present invention provides a vehicle upshift shift control device, including:
the acquisition module is used for acquiring fault information of a battery management system and a gear shifting request of a vehicle motor; and the execution module is used for executing a special working condition motor gear shifting control mode to control the motor controller to enter an active short circuit state and finish gear shifting when the fault information of the battery management system indicates that the rechargeable power of the battery is zero and the request motor gear shifting is identified according to the gear shifting request of the vehicle motor.
Optionally, the execution module includes:
the first obtaining submodule is used for obtaining the current vehicle speed, and when the current vehicle speed reaches the gear-up and gear-shifting vehicle speed, executing torque zero clearing;
the first control submodule is used for controlling the motor shaft to be separated from the synchronizer when the torque zero clearing is finished;
the second control submodule is used for controlling the motor controller to enter an active short-circuit state;
the third control sub-module is used for acquiring the rotating speed of the motor, controlling the motor controller to exit the active short-circuit state when the rotating speed of the motor is reduced to the gear shifting rotating speed, and executing a rotating speed mode;
and the fourth control submodule is used for controlling the gearbox to upshift and controlling the motor shaft and the synchronizer to be closed.
Optionally, the third control sub-module comprises:
and the control subunit is used for controlling the motor rotating speed to be constant as the gear shifting rotating speed and executing torque zero clearing.
Optionally, the execution module further includes:
the second acquisition submodule is used for acquiring battery information before the motor shaft and the synchronizer are controlled to be closed;
and the exit submodule is used for exiting the special working condition motor gear shift control mode after executing the special working condition motor gear shift control mode when the battery information represents that the chargeable power of the battery is not zero.
Optionally, the execution module further includes:
the first alarm submodule is used for outputting fault alarm information if the time length for executing torque zero clearing exceeds a first preset time length;
the second alarm submodule is used for outputting fault alarm information if the time length for separating the motor shaft from the synchronizer exceeds a second preset time length;
and the third alarm submodule is used for outputting fault alarm information if the time length of reducing the motor rotating speed to the gear shifting rotating speed exceeds a third preset time length.
In a third aspect, an embodiment of the present invention additionally provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the vehicle upshift shift control method according to the first aspect.
In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the vehicle upshift control method according to the first aspect are realized.
According to the method, first battery management system fault information and a vehicle motor gear-up request are obtained, when the first battery management system fault information indicates that the rechargeable power of a battery is zero and the request motor gear-up is identified according to the vehicle motor gear-up request, a special working condition motor gear-shifting control mode is executed to control a motor controller to enter an active short-circuit state, and gear-up and gear-shifting are completed. The chargeable power of the battery is represented to be zero by the fault information of the first battery management system, and when the requirement for motor gear-up is identified according to the gear-up request of the vehicle motor, a special working condition motor gear-shifting control mode is executed, so that the current generated by the motor can be prevented from being injected into the battery of the whole vehicle under the condition of ensuring smooth gear-up and gear-shifting, and the service life of the battery is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1 is a flowchart illustrating steps of a method for controlling a vehicle upshift and shift in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a powertrain assembly of a method of controlling a vehicle upshift and shift according to an embodiment of the present invention;
FIG. 3 is an equivalent circuit diagram of a motor system when an active short circuit of a motor controller of the upshift and shift control method of the vehicle is established according to an embodiment of the present invention;
FIG. 4 is a schematic signal input and output diagram of a hybrid powertrain control unit of a vehicle upshift shift control method in accordance with an embodiment of the present invention;
FIG. 5 is a block flow diagram of a vehicle upshift shift control method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a vehicle upshift shift control device in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The battery management system of the hybrid electric vehicle can feed back self chargeable power and self discharge power in real time according to the self state. In the existing hybrid electric vehicle, a motor gear is generally provided with a plurality of gears so as to improve the efficiency of an electric drive system.
In the related art, when the Vehicle power mode is an electric only mode and the Vehicle speed is increased and a higher motor gear needs to be switched, the rotating speed of the motor needs to be reduced by matching with a gear speed ratio, and the process is realized by the motor controller responding to a rotating speed request self-control rotating speed adjustment of a VCU (Vehicle control unit). Through the above working condition analysis, the motor at this moment operates in the fourth quadrant, the motor is in a power generation state, the generated current can be poured into a battery of the whole vehicle, and when the self chargeable power of the battery management system is zero due to self fault or SOC (state of charge) limitation, transient battery overcharge can be caused, so that the service life of the battery is influenced.
In order to overcome the problems, the application provides a vehicle gear-shifting and gear-shifting control method, which aims to execute a special working condition motor gear-shifting control mode when the motor gear-shifting is requested and the chargeable power of a battery is zero when the vehicle gear-shifting and gear-shifting is performed so as to control a motor controller to enter an active short circuit state, complete gear-shifting and avoid the problem of battery overcharge.
Referring to fig. 1 to 3, fig. 1 is a flowchart illustrating steps of a vehicle upshift and shift control method according to an embodiment of the present invention, fig. 2 is a schematic structural diagram illustrating a powertrain of the vehicle upshift and shift control method according to an embodiment of the present invention, and fig. 3 is an equivalent circuit diagram illustrating a motor system when an active short circuit is established in a motor controller of the vehicle upshift and shift control method according to an embodiment of the present invention, as shown in fig. 1 to 3, the method includes:
step S101: and acquiring fault information of a battery management system and a gear shifting request of a vehicle motor.
When the rechargeable power of the battery is zero, the battery management system sends out battery management system fault information to the VCU, the MCU (motor Control Unit, motor controller) can send out a vehicle motor gear shift request to the VCU according to the current driving speed when the driving speed meets the gear shift condition, and the VCU stores the received battery management system fault information and the vehicle motor gear shift request.
Step S102: and when the fault information of the battery management system indicates that the rechargeable power of the battery is zero and the request motor is identified to be shifted up according to the gear shifting request of the vehicle motor, executing a special working condition motor gear shifting control mode to control the motor controller to enter an active short circuit state and finish shifting up and shifting.
In this embodiment, the acquired fault information of the battery management system represents that the chargeable power of the battery is zero, which indicates that the chargeable power of the battery is zero but the dischargeable power is not zero due to the self fault or external environmental factors, and the fault information is that the chargeable power of the battery is zero, so that the normal driving of the vehicle can be guaranteed without being affected by other vehicle faults, wherein the chargeable power of the battery is zero under a special condition, when the request motor upshift is identified according to the upshift request of the motor of the vehicle, when the special condition is met, the special condition motor shift control mode is executed, so as to control the motor controller to enter an active short circuit state, so that the upshift and the shift can be smoothly completed, and the current generated by the motor is prevented from flowing into the battery of the whole vehicle, so as to prolong the service life of the battery, wherein the motor controller is controlled to enter the active short circuit, the method is characterized in that the half-bridge ACTIVE SHORT Circuit (ASC) under an IGBT three-phase bridge of a motor controller is controlled, when the vehicle speed is increased and a higher motor gear needs to be switched, the IGBT gate state of the motor controller is controlled to enter the lower half-bridge ACTIVE SHORT circuit through a VCU, the ACTIVE SHORT circuit negative torque formed by the ACTIVE SHORT circuit state is entered when the motor runs, the rotating speed of the motor is reduced, and the phenomenon that the high-voltage direct CURRENT output of the motor controller causes overcharging of a battery is avoided.
Referring to fig. 1 to 5, fig. 4 is a signal input and output diagram of a hybrid system control unit of a vehicle upshift and shift control method according to an embodiment of the present invention; fig. 5 is a flow chart of a vehicle upshift and shift control method according to an embodiment of the present invention, and in a possible implementation, the step of executing the special condition motor shift control mode includes the following steps S201 to S205:
step S201: and acquiring the current vehicle speed, and performing torque zero clearing when the current vehicle speed reaches the gear-up and gear-shifting vehicle speed.
In the embodiment, the current vehicle speed of the vehicle is acquired, and if the current vehicle speed reaches the upshift and shift vehicle speed, torque resetting is performed, specifically, whether the vehicle needs to be upshifted and shifted is determined by acquiring the running speed of the vehicle and the current vehicle gear, and when the running speed of the vehicle exceeds the maximum speed corresponding to the current vehicle gear, that is, the current vehicle speed reaches the upshift and shift vehicle speed, it is determined that the vehicle needs to be upshifted and shifted, so that the upshift and shift operation is performed.
Step S202: and when the torque zero clearing is completed, the motor shaft is controlled to be disconnected with the synchronizer.
In the present embodiment, after the torque zero clearing is completed, the motor shaft can be controlled to disengage from the synchronizer.
Step S203: and controlling the motor controller to enter an active short-circuit state.
In this embodiment, the motor controller is controlled to enter an ACTIVE SHORT-circuit state, that is, the motor controller IGBT (Insulated Gate Bipolar Transistor) is controlled to enter an ACTIVE SHORT-circuit state of a half-bridge under a three-phase bridge (ASC, ACTIVE SHORT CURRENT), at this time, the CURRENT generated by the motor can only be in the motor controller, and cannot enter the battery through the motor controller, so that the problem of overcharging of the battery can be avoided, and the IGBT Gate state of the motor controller is controlled to enter the ACTIVE SHORT-circuit state of the half-bridge under the VCU, and the ACTIVE SHORT-circuit negative torque formed by the ACTIVE SHORT-circuit state is entered when the motor runs, so as to reduce the motor speed and reduce the gear shifting speed.
Step S204: and acquiring the rotating speed of the motor, controlling the motor controller to exit the active short-circuit state when the rotating speed of the motor is reduced to the gear shifting rotating speed, and executing a rotating speed mode.
In the embodiment, the motor speed is obtained in real time, and when the motor speed is reduced to the gear shifting speed, the motor controller is controlled to exit the active short-circuit state and execute the speed mode, so that gear shifting can be smoothly completed.
In one possible embodiment, the step of executing the rotation speed mode includes:
and controlling the rotating speed of the motor to be constant as the gear shifting rotating speed, and executing torque zero clearing.
In the present embodiment, the motor controller controls the motor rotation speed to be constant as the shift rotation speed, and performs torque zero clearing so that the closing of the motor shaft and the synchronizer can be smoothly performed.
Step S205: controlling the gearbox to upshift and controlling the motor shaft and the synchronizer to close.
In the embodiment, the gearbox is controlled to upshift, and then the motor shaft and the synchronizer are controlled to be closed, so that the upshift and the gear shifting can be smoothly completed.
In a possible embodiment, before the step of controlling the motor shaft and the synchronizer to be closed, the method further comprises:
acquiring battery information;
and when the battery information represents that the chargeable power of the battery is not zero, exiting the special working condition motor gear shifting control mode after executing the special working condition motor gear shifting control mode.
In this embodiment, in executing the special operating condition motor shift control mode, and before the gear-up and shift is completed, the battery information of the battery can be obtained in real time, and when the battery information of the battery indicates that the battery chargeable power of the battery is not zero, the current generated by the motor can be allowed to enter the battery, so that after the special operating condition motor shift control mode is completed, the special operating condition motor shift control mode can be directly exited, and a normal shift control mode can be adopted.
In one possible embodiment, after the step of performing torque zeroing, the method further comprises:
and if the time length for executing the torque zero clearing exceeds a first preset time length, immediately outputting fault alarm information.
In the present embodiment, as shown in fig. 5, the VCU requests MCU torque zero, counts from the start of executing torque zero, and if the duration of executing torque zero (i.e. the torque zero time t1 in fig. 5) exceeds a first preset duration, the TBD in fig. 5 is: to Be Defined, undetermined, can set up according To actual demand. And immediately outputting fault alarm information, wherein the first preset time length is preset time length for executing torque zero clearing, for example, the first preset time length can be 0.5 second, if the time length for executing torque zero clearing exceeds the first preset time length, a vehicle is determined to have a fault, and immediately outputting the fault alarm information so as to remind a user to stop the vehicle to check and maintain, thereby avoiding accidents.
In a possible embodiment, before the step of controlling the motor shaft to disengage from the synchronizer, the method further comprises:
and if the time length of the motor shaft and the synchronizer to be disengaged exceeds a second preset time length, outputting fault alarm information.
In this embodiment, a timing is started when a disengagement instruction of the motor shaft and the synchronizer is sent from the VCU, and if a time length for disengaging the motor shaft and the synchronizer (i.e., disengagement time t2 in fig. 5) exceeds a second preset time length, a failure alarm message is immediately output, where the second preset time length is a preset time length for performing disengagement of the motor shaft and the synchronizer, for example, the second preset time length may be 0.2 seconds, and if the time length for disengaging the motor shaft and the synchronizer exceeds the second preset time length, it is determined that a vehicle has a failure, and a failure alarm message is immediately output, so as to remind a user to stop at the side for inspection and maintenance, thereby avoiding an accident.
In one possible embodiment, after the step of obtaining the motor speed, the method further includes:
and if the time length of the motor rotating speed reduced to the gear shifting rotating speed exceeds a third preset time length, outputting fault alarm information.
In this embodiment, starting timing from controlling the motor controller to enter the active short-circuit state, if a time length from the reduction of the motor speed to the shift speed (i.e., the speed drop time t3 in fig. 5) exceeds a third preset time length, outputting failure alarm information, where the third preset time length is a preset time length allowing the reduction of the motor speed to the shift speed, for example, the third preset time length may be 0.5 second, and if the time length from the reduction of the motor speed to the shift speed exceeds the third preset time length, determining that a vehicle has a failure, and immediately outputting the failure alarm information, so as to remind a user to stop at the side for inspection and maintenance, thereby avoiding an accident.
Based on the same inventive concept, the present application proposes a vehicle upshift gear shift control device, and referring to fig. 6, fig. 6 is a schematic diagram of a vehicle upshift gear shift control device in an embodiment of the present invention, as shown in fig. 6, the device includes:
the acquiring module 601 is used for acquiring fault information of a battery management system and a gear shifting request of a vehicle motor;
and the executing module 602 is configured to execute a special operating condition motor shift control mode to control the motor controller to enter an active short circuit state to complete shift-up and shift-down when the battery management system fault information indicates that the battery chargeable power is zero and a request motor shift-up is identified according to the vehicle motor shift-up request.
Optionally, the execution module includes:
the first obtaining submodule is used for obtaining the current vehicle speed, and when the current vehicle speed reaches the gear-up and gear-shifting vehicle speed, executing torque zero clearing;
the first control submodule is used for controlling the motor shaft to be separated from the synchronizer when the torque zero clearing is finished;
the second control submodule is used for controlling the motor controller to enter an active short-circuit state;
the third control sub-module is used for acquiring the rotating speed of the motor, controlling the motor controller to exit the active short-circuit state when the rotating speed of the motor is reduced to the gear shifting rotating speed, and executing a rotating speed mode;
and the fourth control submodule is used for controlling the gearbox to upshift and controlling the motor shaft and the synchronizer to be closed.
Optionally, the third control sub-module comprises:
and the control subunit is used for controlling the motor rotating speed to be constant as the gear shifting rotating speed and executing torque zero clearing.
Optionally, the execution module further includes:
the second acquisition submodule is used for acquiring battery information before the motor shaft and the synchronizer are controlled to be closed;
and the exit submodule is used for exiting the special working condition motor gear shift control mode after executing the special working condition motor gear shift control mode when the battery information represents that the chargeable power of the battery is not zero.
Optionally, the execution module further includes:
the first alarm submodule is used for outputting fault alarm information if the time length for executing torque zero clearing exceeds a first preset time length;
the second alarm submodule is used for outputting fault alarm information if the time length for separating the motor shaft from the synchronizer exceeds a second preset time length;
and the third alarm submodule is used for outputting fault alarm information if the time length of reducing the motor rotating speed to the gear shifting rotating speed exceeds a third preset time length.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device in an embodiment of the present invention, and as shown in fig. 7, the present application further provides an electronic device, including:
a processor 71;
a memory 72 having instructions stored thereon, and a computer program stored on the memory and executable on the processor 71, the computer program, when executed by the processor 71, causing the apparatus to perform a vehicle upshift shift control method.
The present application also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which, when executed by a processor 71 of an electronic device, enables the electronic device to execute a method of implementing a vehicle upshift shift control method.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The vehicle upshift and shift control method, device, electronic device and readable storage medium provided by the present invention are introduced in detail, and specific examples are applied herein to illustrate the principle and implementation of the present invention, and the description of the above embodiments is only used to help understand the method and its core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A vehicle upshift shift control method, characterized by comprising:
acquiring fault information of a battery management system and a gear shifting request of a vehicle motor;
and when the fault information of the battery management system indicates that the rechargeable power of the battery is zero and the request motor is identified to be shifted up according to the gear shifting request of the vehicle motor, executing a special working condition motor gear shifting control mode to control the motor controller to enter an active short circuit state and finish shifting up and shifting.
2. The method of claim 1, wherein the step of executing the special case motor shift control mode comprises:
acquiring a current vehicle speed, and performing torque zero clearing when the current vehicle speed reaches a gear-up and gear-shifting vehicle speed;
when the torque is cleared, the motor shaft is controlled to be separated from the synchronizer;
controlling a motor controller to enter an active short-circuit state;
acquiring the rotating speed of a motor, and controlling a motor controller to exit the active short-circuit state and execute a rotating speed mode when the rotating speed of the motor is reduced to a gear shifting rotating speed;
controlling the gearbox to upshift and controlling the motor shaft and the synchronizer to close.
3. The method of claim 2, wherein the step of executing a speed mode comprises:
and controlling the rotating speed of the motor to be constant as the gear shifting rotating speed, and executing torque zero clearing.
4. The method of claim 2,
prior to the step of controlling the motor shaft and the synchronizer to close, the method further comprises:
acquiring battery information;
and when the battery information represents that the chargeable power of the battery is not zero, exiting the special working condition motor gear shifting control mode after executing the special working condition motor gear shifting control mode.
5. The method of claim 2,
after the step of performing torque zeroing, the method further comprises:
if the duration of executing torque zero clearing exceeds a first preset duration, outputting fault alarm information;
prior to the step of controlling the motor shaft to disengage from the synchronizer, the method further comprises:
if the time length of the motor shaft and the synchronizer for disengagement exceeds a second preset time length, outputting fault alarm information;
after the step of obtaining the motor speed, the method further comprises:
and if the time length of the motor rotating speed reduced to the gear shifting rotating speed exceeds a third preset time length, outputting fault alarm information.
6. A vehicle upshift shift control device, characterized by comprising:
the acquisition module is used for acquiring fault information of a battery management system and a gear shifting request of a vehicle motor;
and the execution module is used for executing a special working condition motor gear shifting control mode to control the motor controller to enter an active short circuit state and finish gear shifting when the fault information of the battery management system indicates that the rechargeable power of the battery is zero and the request motor gear shifting is identified according to the gear shifting request of the vehicle motor.
7. The apparatus of claim 6, wherein the execution module comprises:
the first obtaining submodule is used for obtaining the current vehicle speed, and when the current vehicle speed reaches the gear-up and gear-shifting vehicle speed, executing torque zero clearing;
the first control submodule is used for controlling the motor shaft to be separated from the synchronizer when the torque zero clearing is finished;
the second control submodule is used for controlling the motor controller to enter an active short-circuit state;
the third control sub-module is used for acquiring the rotating speed of the motor, controlling the motor controller to exit the active short-circuit state when the rotating speed of the motor is reduced to the gear shifting rotating speed, and executing a rotating speed mode;
and the fourth control submodule is used for controlling the gearbox to upshift and controlling the motor shaft and the synchronizer to be closed.
8. The apparatus of claim 7, wherein said third control sub-module comprises:
and the control subunit is used for controlling the motor rotating speed to be constant as the gear shifting rotating speed and executing torque zero clearing.
9. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of a vehicle upshift shift control method according to any one of claims 1 to 5.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of a vehicle upshift shift control method according to any one of claims 1 to 5.
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| CN202110026112.4A CN112693325B (en) | 2021-01-08 | 2021-01-08 | Vehicle upshift and shift control method and device, electronic equipment and readable storage medium |
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| CN202110026112.4A CN112693325B (en) | 2021-01-08 | 2021-01-08 | Vehicle upshift and shift control method and device, electronic equipment and readable storage medium |
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| CN112693325B (en) | 2023-01-10 |
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