CN118055599A - Drive system cooling control method, device, equipment and storage medium - Google Patents
Drive system cooling control method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN118055599A CN118055599A CN202410063556.9A CN202410063556A CN118055599A CN 118055599 A CN118055599 A CN 118055599A CN 202410063556 A CN202410063556 A CN 202410063556A CN 118055599 A CN118055599 A CN 118055599A
- Authority
- CN
- China
- Prior art keywords
- driving system
- cooling
- rotating speed
- driving
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 158
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000011217 control strategy Methods 0.000 claims description 12
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention belongs to the technical field of vehicles, and discloses a cooling control method, a cooling control device, cooling control equipment and a storage medium for a driving system. According to the invention, when the operation condition of the driving system is a frequent switching condition, the efficiency and the energy of the driving system are obtained by calculating according to the parameters of the driving system; calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system; and determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed. When the operation working condition of the driving system is the frequent switching working condition, the efficiency and the energy of the driving system are calculated according to the parameters of the driving system, so that the heat of the driving system is obtained, and finally, the target cooling rotating speed is determined according to the heat of the driving system, so that the cooling device is enabled to improve the cooling efficiency, the energy consumption of the driving system is reduced, and the failure rate of the driving system of the whole vehicle is reduced.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a driving system cooling control method, device, apparatus, and storage medium.
Background
The pure electric automobile uses a vehicle-mounted power supply as power, uses a motor to drive wheels to run, and meets various requirements of road traffic and safety regulations; the driving system consists of a driving motor, a driving Motor Controller (MCU), an inverter and an IGBT, and is used for controlling the torque output of the whole vehicle; the existing driving system cooling control strategy controls a water pump and an electronic fan to cool the driving system according to different temperature thresholds of the MCU, the IGBT and the inverter; the scheme has certain hysteresis for temperature control of the driving system, and under the conditions of complex working conditions such as repeated rapid acceleration and rapid deceleration and frequent change of the working electricity of the motor, the driving motor and the battery are easy to overheat, the service lives of the motor and the battery pack are reduced, the cooling efficiency is low, and the energy consumption of the whole vehicle is increased, so that the problem that how to solve the problem that the cooling efficiency of the existing cooling control method of the driving system is low is urgent is solved.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a cooling control method, a cooling control device, cooling control equipment and a storage medium for a driving system, and aims to solve the technical problem that the existing cooling control method for the driving system is low in efficiency.
To achieve the above object, the present invention provides a driving system cooling control method comprising the steps of:
When the operation working condition of the driving system is a frequent switching working condition, calculating according to the driving system parameters to obtain the efficiency of the driving system and the energy of the driving system;
Calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system;
And determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed.
Optionally, when the driving system is in the frequent switching working condition, the method further includes, before calculating according to the driving system parameters in the preset time to obtain the driving system efficiency and the driving system energy:
acquiring system torque data, system rotation speed data and system power data based on preset time;
obtaining driving system parameters according to the system torque data, the system rotating speed data and the system power data;
and determining the operation condition of the driving system according to the driving system parameters.
Optionally, the determining the operation condition of the driving system according to the driving system parameter includes:
Determining system torque data according to the driving system parameters;
Determining a system torque slope from the system torque data;
and when the system torque slope exceeds the preset torque slope, determining the operation working condition of the driving system as a frequent switching working condition.
Optionally, the calculating according to the driving system parameters to obtain the driving system efficiency and the driving system energy includes:
calculating according to system torque data and system rotating speed data in the driving system parameters to obtain system output power;
efficiency calculation is carried out according to the system input power and the system output power, so that the efficiency of the driving system is obtained;
And performing energy calculation according to the preset time and the system output power to obtain the energy of the driving system.
Optionally, the determining the target cooling rotational speed according to the driving system heat includes:
comparing the drive system heat to a system heat threshold;
Determining the running state of the system according to the comparison result;
And determining a target cooling rotating speed according to the running state of the system.
Optionally, the determining the target cooling rotation speed according to the system operation state includes:
when the running state of the system is a state to be cooled, determining a corresponding required cooling rotating speed according to the heat of the driving system and a preset rotating speed control strategy;
and determining a target cooling rotating speed according to the required cooling rotating speed.
Optionally, after determining the target cooling rotational speed according to the driving system heat, the method further includes:
when the current system heat is smaller than a system heat threshold, determining a corresponding current cooling rotating speed according to the current system heat and a preset rotating speed control strategy;
and adjusting the target cooling rotating speed according to the current cooling rotating speed.
In addition, in order to achieve the above object, the present invention also proposes a drive system cooling control device including:
The processing module is used for calculating according to the driving system parameters when the operation working condition of the driving system is a frequent switching working condition, so as to obtain the efficiency of the driving system and the energy of the driving system;
The processing module is also used for calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system;
and the control module is used for determining a target cooling rotating speed according to the heat of the driving system so as to enable the cooling device to cool the driving system according to the target cooling rotating speed.
In addition, in order to achieve the above object, the present invention also proposes a drive system cooling control apparatus including: a memory, a processor, and a drive system cooling control program stored on the memory and executable on the processor, the drive system cooling control program configured to implement the steps of the drive system cooling control method as described above.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon a drive system cooling control program which, when executed by a processor, implements the steps of the drive system cooling control method as described above.
According to the invention, when the operation condition of the driving system is a frequent switching condition, the efficiency and the energy of the driving system are obtained by calculating according to the parameters of the driving system; calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system; and determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed. When the operation working condition of the driving system is the frequent switching working condition, the efficiency and the energy of the driving system are calculated according to the parameters of the driving system, so that the heat of the driving system is obtained, and finally, the target cooling rotating speed is determined according to the heat of the driving system, so that the cooling device is enabled to improve the cooling efficiency, the energy consumption of the driving system is reduced, and the failure rate of the driving system of the whole vehicle is reduced.
Drawings
FIG. 1 is a schematic diagram of a drive system cooling control apparatus of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart of a first embodiment of a cooling control method of a driving system according to the present invention;
FIG. 3 is a schematic diagram of an overall control flow of an embodiment of a cooling control method of a driving system according to the present invention;
FIG. 4 is a flow chart of a second embodiment of a cooling control method of the driving system according to the present invention;
Fig. 5 is a block diagram showing the construction of a first embodiment of the cooling control device for the driving system according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a driving system cooling control device of a hardware running environment according to an embodiment of the present invention.
As shown in fig. 1, the driving system cooling control apparatus may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) Memory or a stable Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 is not limiting of the drive system cooling control apparatus and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a drive system cooling control program may be included in the memory 1005 as one type of storage medium.
In the drive system cooling control apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the driving system cooling control apparatus of the present invention may be provided in the driving system cooling control apparatus, which invokes the driving system cooling control program stored in the memory 1005 through the processor 1001 and executes the driving system cooling control method provided by the embodiment of the present invention.
An embodiment of the present invention provides a cooling control method for a driving system, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the cooling control method for a driving system according to the present invention.
In this embodiment, the driving system cooling control method includes the steps of:
step S10: and when the operation working condition of the driving system is a frequent switching working condition, calculating according to the driving system parameters to obtain the efficiency of the driving system and the energy of the driving system.
It should be noted that, the execution body of the embodiment is a driving system cooling control device, where the driving system cooling control device has functions of data processing, data communication, program running, and the like, and the driving system cooling control device may be an integrated controller, a control computer, and other devices with similar functions, and the embodiment is not limited to this.
It should be noted that, in order to implement the method of this embodiment, the equipment requirements are: one computer with Matlab simulink software installed, one set of CANape equipment, one set of calibration sample car which can be normally used and one corresponding software; the equipment connection is as follows: opening a simulink, modifying the whole vehicle controller software according to a control strategy, integrating the whole vehicle controller software on the whole vehicle, and connecting CANape equipment to monitor and adjust vehicle parameters; as shown in fig. 3, according to the operation state identification prediction of the driving system, accurate cooling control is performed on the driving system in advance, so that the driving system is prevented from over-temperature fault, the energy loss caused by cooling can be reduced by accurate control, and the cooling efficiency is improved.
It can be understood that the driving system refers to a system composed of a driving motor, a driving Motor Controller (MCU), an inverter and an IGBT for controlling the torque output of the whole vehicle, the frequent switching condition refers to the condition of abrupt change of torque, rotation speed slope or power of the driving system, the driving system parameter refers to the torque parameter, rotation speed parameter and power parameter of the driving system operation, the driving system efficiency refers to the efficiency of the driving system when converting input energy into output energy, and the driving system energy refers to the total energy generated by the driving system in a preset time.
In specific implementation, the driving system is applied to a pure electric vehicle which uses a vehicle-mounted power supply as power and uses a motor to drive wheels to run, and after the running condition of the driving system is determined to be a frequent switching condition, efficiency and energy calculation are performed through torque parameters, rotation speed parameters and power parameters of the running of the driving system, so that the efficiency of the driving system when converting input energy into output energy and the total energy generated by the driving system in preset time are obtained.
It should be noted that, in order to accurately obtain the operation condition of the driving system, further, when the driving system is in a frequent switching condition, the method further includes, before obtaining the efficiency of the driving system and the energy of the driving system, calculating according to the driving system parameters in a preset time: acquiring system torque data, system rotation speed data and system power data based on preset time; obtaining driving system parameters according to the system torque data, the system rotating speed data and the system power data; and determining the operation condition of the driving system according to the driving system parameters.
It is understood that the preset time refers to a preset time for monitoring the operation condition of the driving system, the system torque data refers to all torque data of the driving system in the preset time, the system rotation speed data refers to all rotation speed data of the driving system in the preset time, and the system power data refers to all power data of the driving system in the preset time.
In specific implementation, system torque data, system rotation speed data and system power data are acquired within preset time, driving system parameters are formed by the system torque data, the system rotation speed data and the system power data, and finally the operation condition of the driving system is determined according to the obtained driving system parameters.
It should be noted that, in order to accurately determine the frequent switching condition of the driving system, further, determining the operation condition of the driving system according to the driving system parameter includes: determining system torque data according to the driving system parameters; determining a system torque slope from the system torque data; and when the system torque slope exceeds the preset torque slope, determining the operation working condition of the driving system as a frequent switching working condition.
It will be appreciated that the system torque slope refers to the torque change slope of the drive system within a predetermined time, and the predetermined torque slope refers to a torque change slope threshold for determining whether the drive system is in a frequent switching condition.
In specific implementation, each torque data of the driving system is determined according to the obtained driving parameters, a change slope of the torque of the driving system in a preset time is determined according to each torque data of the driving system, the change slope of the torque of the driving system in the preset time is compared with the preset torque slope, the change slope of the torque of the driving system in the preset time is larger than the preset torque slope, abrupt change of the torque slope of the driving system in the preset time is indicated, and then the operation condition of the driving system in the preset time is determined to be a frequent switching condition.
When judging whether the operation condition of the driving system is a frequent switching condition, determining each rotating speed data and each power data of the driving system through the obtained driving parameters, determining the change slope of the rotating speed of the driving system in a preset time according to each rotating speed data of the driving system, comparing the change slope of the rotating speed of the driving system in the preset time with the preset rotating speed slope, and determining that the change slope of the rotating speed of the driving system in the preset time is larger than the preset rotating speed slope, wherein the rotating speed slope of the driving system in the preset time is suddenly changed, so that the operation condition of the driving system in the preset time is determined to be the frequent switching condition; and obtaining the power variation in the preset time according to the power data of the driving system, comparing the power variation in the preset time with a power variation threshold, and when the power variation in the preset time is larger than the power variation threshold, indicating that the power of the driving system is suddenly changed in the preset time, thereby determining the operation condition of the driving system in the preset time as the frequent switching condition.
Step S20: and calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system.
It is understood that the heat of the driving system refers to the total heat generated by the driving system in a preset time, and the total heat generated by the driving system in the preset time is obtained by performing heat calculation according to the obtained efficiency of the driving system and the energy of the driving system.
Step S30: and determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed.
It is understood that the target cooling rotational speed refers to a rotational speed of the cooling device including, but not limited to, an electronic fan and a water pump controlled by PWM, and the rotational speed of the cooling device is determined according to the driving system heat so that the cooling device cools the driving system according to the determined rotational speed.
According to the embodiment, when the operation working condition of the driving system is a frequent switching working condition, the driving system efficiency and the driving system energy are obtained by calculating according to the driving system parameters; calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system; and determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed. When the operation working condition of the driving system is the frequent switching working condition, the efficiency and the energy of the driving system are calculated according to the parameters of the driving system, so that the heat of the driving system is obtained, and finally, the target cooling rotating speed is determined according to the heat of the driving system, so that the cooling device is enabled to improve the cooling efficiency, the energy consumption of the driving system is reduced, and the failure rate of the driving system of the whole vehicle is reduced.
Referring to fig. 4, fig. 4 is a flowchart illustrating a cooling control method for a driving system according to a second embodiment of the present invention.
Based on the first embodiment, the driving system cooling control method of the present embodiment includes, at step S10:
Step S11: and calculating according to the system torque data and the system rotating speed data in the driving system parameters to obtain the system output power.
It is understood that the system output power refers to energy output by the driving system in unit time, and the system output power is obtained by calculating the output power according to the obtained system torque data and the system rotation speed data.
Step S12: and carrying out efficiency calculation according to the system input power and the system output power to obtain the efficiency of the driving system.
It is understood that the system input power refers to the energy input by the system in unit time, and efficiency calculation is performed according to the input power and the output power of the driving system, so as to obtain the efficiency of the driving system.
Step S13: and performing energy calculation according to the preset time and the system output power to obtain the energy of the driving system.
It is understood that the driving system energy refers to energy generated by the driving system in a preset time, and the driving system energy is obtained by calculating the energy generated by the driving system according to the preset time and the output power of the system.
In order to accurately obtain the target cooling rotational speed, the determining the target cooling rotational speed according to the heat of the driving system further includes: comparing the drive system heat to a system heat threshold; determining the running state of the system according to the comparison result; and determining a target cooling rotating speed according to the running state of the system.
It is understood that the system thermal threshold refers to a thermal threshold used to determine the state of the drive system, including but not limited to normal and to-be-cooled.
In a specific implementation, the acquired heat of the driving system is compared with a system heat threshold value, the running state of the driving system is determined according to the comparison result, and finally the target cooling rotating speed of the cooling device is determined according to the running state of the driving system.
In order to accurately obtain the target cooling rotation speed, the determining the target cooling rotation speed according to the system operation state further includes: when the running state of the system is a state to be cooled, determining a corresponding required cooling rotating speed according to the heat of the driving system and a preset rotating speed control strategy; and determining a target cooling rotating speed according to the required cooling rotating speed.
It will be appreciated that the preset rotational speed control strategy refers to a preset strategy for heat and rotational speed, and the required cooling rotational speed refers to a rotational speed corresponding to the heat of the drive system.
In specific implementation, when the running state of the system is determined to be the state to be cooled according to the comparison result, the corresponding cooling device rotating speed is obtained according to the heat of the driving system through a preset corresponding strategy of the heat and the rotating speed, and the obtained corresponding cooling device rotating speed is the target cooling rotating speed.
It will be appreciated that, in order to accurately obtain the target cooling rotational speed, further, after determining the target cooling rotational speed according to the driving system heat, the method further includes: when the current system heat is smaller than a system heat threshold, determining a corresponding current cooling rotating speed according to the current system heat and a preset rotating speed control strategy; and adjusting the target cooling rotating speed according to the current cooling rotating speed.
It will be appreciated that the current system heat refers to the heat generated by the current drive system and the current cooling speed refers to the speed to which the current system heat corresponds.
In specific implementation, when the cooling device cools the driving system, the heat currently generated by the driving system is obtained, when the heat of the current system is smaller than the heat threshold of the system, the driving system is cooled, namely the running state of the driving system is in a normal state, the corresponding rotating speed of the cooling device is determined according to the heat of the current system through a preset rotating speed control strategy, and finally the target cooling rotating speed is adjusted according to the current cooling rotating speed, so that the rotating speed of the cooling device is reduced.
It should be noted that, first, it is determined whether the operating point of the electric drive system is frequently switched (i.e., torque, rotational speed slope, or power abrupt change) within the time t; if the driving system recognizes the working condition of frequently switching the working point, calculating the system efficiency n of the electric driving system and the total energy J generated in the moment t; calculating total heat G generated in the t moment of the electric drive system according to the system efficiency n and the total energy J in the t moment, and controlling an electronic fan and a water pump to cool the electric drive system by using PWM according to the value of G, wherein the larger the G value is, the higher the PWM control rotating speed is; the heating of the electric drive system is accurately controlled according to the heating value, and the heating is faster and more accurate than temperature-based control.
According to the embodiment, the system output power is obtained by calculating according to the system torque data and the system rotation speed data in the driving system parameters; efficiency calculation is carried out according to the system input power and the system output power, so that the efficiency of the driving system is obtained; and performing energy calculation according to the preset time and the system output power to obtain the energy of the driving system. Calculating output power through system torque data and system rotation speed data to obtain system output power, calculating system input power and system output power to obtain driving system efficiency, and finally calculating energy through preset time and the system output power to obtain driving system energy, so that accuracy of driving system energy calculation is improved, and failure rate of a whole vehicle driving system is reduced.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium is stored with a drive system cooling control program, and the drive system cooling control program realizes the steps of the drive system cooling control method when being executed by a processor.
Referring to fig. 5, fig. 5 is a block diagram showing the structure of a first embodiment of the cooling control device for the driving system according to the present invention.
As shown in fig. 5, a cooling control device for a driving system according to an embodiment of the present invention includes:
And the processing module 10 is used for calculating according to the driving system parameters to obtain the driving system efficiency and the driving system energy when the operation working condition of the driving system is the frequent switching working condition.
The processing module 10 is further configured to calculate a driving system heat according to the driving system efficiency and the driving system energy.
The control module 20 is configured to determine a target cooling rotational speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotational speed.
According to the embodiment, when the operation working condition of the driving system is a frequent switching working condition, the driving system efficiency and the driving system energy are obtained by calculating according to the driving system parameters; calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system; and determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed. When the operation working condition of the driving system is the frequent switching working condition, the efficiency and the energy of the driving system are calculated according to the parameters of the driving system, so that the heat of the driving system is obtained, and finally, the target cooling rotating speed is determined according to the heat of the driving system, so that the cooling device is enabled to improve the cooling efficiency, the energy consumption of the driving system is reduced, and the failure rate of the driving system of the whole vehicle is reduced.
In one embodiment, the processing module 10 is further configured to obtain system torque data, system rotational speed data, and system power data based on a preset time;
obtaining driving system parameters according to the system torque data, the system rotating speed data and the system power data;
and determining the operation condition of the driving system according to the driving system parameters.
In one embodiment, the processing module 10 is further configured to determine system torque data based on the drive system parameters;
Determining a system torque slope from the system torque data;
and when the system torque slope exceeds the preset torque slope, determining the operation working condition of the driving system as a frequent switching working condition.
In an embodiment, the processing module 10 is further configured to calculate, according to the system torque data and the system rotational speed data in the driving system parameters, a system output power;
efficiency calculation is carried out according to the system input power and the system output power, so that the efficiency of the driving system is obtained;
And performing energy calculation according to the preset time and the system output power to obtain the energy of the driving system.
In one embodiment, the control module 20 is further configured to compare the drive system heat to a system heat threshold;
Determining the running state of the system according to the comparison result;
And determining a target cooling rotating speed according to the running state of the system.
In an embodiment, the control module 20 is further configured to determine, when the system operating state is a state to be cooled, a corresponding required cooling rotational speed according to the driving system heat and a preset rotational speed control strategy;
and determining a target cooling rotating speed according to the required cooling rotating speed.
In an embodiment, the control module 20 is further configured to determine, when the current system heat is less than the system heat threshold, a corresponding current cooling rotational speed according to the current system heat and a preset rotational speed control strategy;
and adjusting the target cooling rotating speed according to the current cooling rotating speed.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A drive system cooling control method, characterized by comprising:
When the operation working condition of the driving system is a frequent switching working condition, calculating according to the driving system parameters to obtain the efficiency of the driving system and the energy of the driving system;
Calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system;
And determining a target cooling rotating speed according to the heat of the driving system, so that the cooling device cools the driving system according to the target cooling rotating speed.
2. The method of claim 1, wherein when the driving system is in a frequent switching condition, the method further comprises, before calculating according to the driving system parameters in a preset time to obtain the driving system efficiency and the driving system energy:
acquiring system torque data, system rotation speed data and system power data based on preset time;
obtaining driving system parameters according to the system torque data, the system rotating speed data and the system power data;
and determining the operation condition of the driving system according to the driving system parameters.
3. The method of claim 2, wherein said determining an operating condition of the drive system based on said drive system parameters comprises:
Determining system torque data according to the driving system parameters;
Determining a system torque slope from the system torque data;
and when the system torque slope exceeds the preset torque slope, determining the operation working condition of the driving system as a frequent switching working condition.
4. The method of claim 1, wherein the calculating based on the drive system parameters to obtain the drive system efficiency and the drive system energy comprises:
calculating according to system torque data and system rotating speed data in the driving system parameters to obtain system output power;
efficiency calculation is carried out according to the system input power and the system output power, so that the efficiency of the driving system is obtained;
And performing energy calculation according to the preset time and the system output power to obtain the energy of the driving system.
5. The method of claim 1, wherein said determining a target cooling speed from said drive system heat comprises:
comparing the drive system heat to a system heat threshold;
Determining the running state of the system according to the comparison result;
And determining a target cooling rotating speed according to the running state of the system.
6. The method of claim 5, wherein said determining a target cooling rate based on said system operating condition comprises:
when the running state of the system is a state to be cooled, determining a corresponding required cooling rotating speed according to the heat of the driving system and a preset rotating speed control strategy;
and determining a target cooling rotating speed according to the required cooling rotating speed.
7. The method of any one of claims 1 to 6, wherein after the target cooling rotational speed is determined from the drive system heat, further comprising:
when the current system heat is smaller than a system heat threshold, determining a corresponding current cooling rotating speed according to the current system heat and a preset rotating speed control strategy;
and adjusting the target cooling rotating speed according to the current cooling rotating speed.
8. A drive system cooling control apparatus, characterized by comprising:
The processing module is used for calculating according to the driving system parameters when the operation working condition of the driving system is a frequent switching working condition, so as to obtain the efficiency of the driving system and the energy of the driving system;
The processing module is also used for calculating according to the efficiency of the driving system and the energy of the driving system to obtain the heat of the driving system;
and the control module is used for determining a target cooling rotating speed according to the heat of the driving system so as to enable the cooling device to cool the driving system according to the target cooling rotating speed.
9. A drive system cooling control apparatus, characterized by comprising: a memory, a processor, and a drive system cooling control program stored on the memory and executable on the processor, the drive system cooling control program configured to implement the steps of the drive system cooling control method of any one of claims 1 to 7.
10. A storage medium having stored thereon a drive system cooling control program which, when executed by a processor, implements the steps of the drive system cooling control method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063556.9A CN118055599A (en) | 2024-01-16 | 2024-01-16 | Drive system cooling control method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410063556.9A CN118055599A (en) | 2024-01-16 | 2024-01-16 | Drive system cooling control method, device, equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118055599A true CN118055599A (en) | 2024-05-17 |
Family
ID=91043996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410063556.9A Pending CN118055599A (en) | 2024-01-16 | 2024-01-16 | Drive system cooling control method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118055599A (en) |
-
2024
- 2024-01-16 CN CN202410063556.9A patent/CN118055599A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108215935A (en) | Automobile max. speed management method, device, storage medium and electric vehicle | |
| CN110356245B (en) | Motor over-temperature protection method and device | |
| CN111572349B (en) | Electric vehicle locked-rotor fault detection method, device, equipment and storage medium | |
| CN107315433B (en) | Temperature acquisition method and device for driving motor | |
| JP3719176B2 (en) | Generator protection device | |
| CN113471567B (en) | Battery pack temperature difference control method, device, equipment and storage medium | |
| CN108382247A (en) | The control method and electric vehicle of electric vehicle | |
| WO2024046343A1 (en) | Parameter setting method and apparatus | |
| CN118055599A (en) | Drive system cooling control method, device, equipment and storage medium | |
| WO2012036858A2 (en) | Retarding grid cooling system and control | |
| CN109560746B (en) | Overload protection method and device for electric vehicle driving system | |
| CN115107578B (en) | Vehicle battery pack heating method, device, equipment and storage medium | |
| CN117552860A (en) | Automobile cooling control method, device, equipment and storage medium | |
| CN117240181A (en) | Motor locked rotor protection method, motor locked rotor protection device and storage medium | |
| CN114940099B (en) | Method, device, equipment and storage medium for improving cruising ability of automobile | |
| CN113937388A (en) | Battery heating control method, device, equipment and storage medium | |
| CN113525103B (en) | Control method and device for limp mode of electric automobile, electronic equipment and medium | |
| CN115431702B (en) | Automobile heating control method, system, computer equipment and storage medium | |
| CN118082538A (en) | Control method, device, equipment and storage medium of whole vehicle controller | |
| CN116767220A (en) | Vehicle control method, device, equipment and storage medium | |
| CN113635736B (en) | Pressure protection control method for compressor of automobile thermal management system | |
| CN117621807A (en) | Vehicle thermal management method, device, equipment and storage medium | |
| CN116331212A (en) | Vehicle heat dissipation control method, device, equipment and storage medium | |
| CN117007929A (en) | IGBT temperature rise abnormality detection method and vehicle | |
| CN117578954A (en) | Derating control method, derating control device, derating control medium and MCU (micro control Unit) for vehicle motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |