CN116101128A - Active heating method, device, equipment and medium for integrated power assembly system - Google Patents
Active heating method, device, equipment and medium for integrated power assembly system Download PDFInfo
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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Abstract
The application provides an active heating method and device of an integrated power assembly system, electronic equipment and a computer readable storage medium. The method comprises the following steps: transmitting an active heating enabling instruction and target heating power; acquiring actual heating power; calculating required heating power based on the target heating power and the actual heating power; under the condition that the required heating power is larger than zero, calculating a current output torque value according to the current dq axis current value, the current dq axis inductance value, the flux linkage value and the pole logarithm; under the condition that the integrated power assembly system can actively generate heat, determining an actual current value meeting the required heating power; calculating a torque angle at an actual current value based on the current output torque value, the current dq-axis inductance value, the flux linkage value, and the pole pair number; and determining a dq axis current given value with an active heating function based on the torque angle, so as to complete the active heating function of the system according to the dq axis current given value.
Description
Technical Field
The application belongs to the field of automobiles, and particularly relates to an active heating method and device of an integrated power assembly system, electronic equipment and a computer readable storage medium.
Background
Aiming at the problem of performance decay of the battery pack at low temperature, the method which is commonly adopted at present is to add an electric heating system into the battery pack, and realize the heating of the battery pack through the control of the electric heating system. In another scheme, the motor is driven to stop rotating, and the heat generated by the motor and the controller in the stop rotating process is used for heating the battery pack.
The first solution in the prior art requires modification of the battery structure while increasing the cost of the vehicle. The second method has the defects that the motor is not heated uniformly due to unbalance of the locked-rotor current, and the vehicle cannot run under the locked-rotor working condition, so that the normal driving requirement of a driver is influenced.
In view of this, the present application is presented.
Disclosure of Invention
The embodiment of the application provides an active heating method, an active heating device, electronic equipment and a computer readable storage medium of an integrated power assembly system, which can realize the active heating function of the system in a full working condition range without influencing the driving experience of a driver; the heat generated by the motor and the controller is fully utilized; the autonomous heating system of the battery pack is omitted, and the vehicle cost is reduced.
In a first aspect, an embodiment of the present application provides an active heating method of an integrated powertrain system, including:
transmitting an active heating enabling instruction and target heating power;
acquiring actual heating power;
calculating required heating power based on the target heating power and the actual heating power;
under the condition that the required heating power is larger than zero, calculating a current output torque value according to the current dq axis current value, the current dq axis inductance value, the flux linkage value and the pole logarithm;
under the condition that the integrated power assembly system can actively generate heat, determining an actual current value meeting the required heating power;
calculating a torque angle at an actual current value based on the current output torque value, the current dq-axis inductance value, the flux linkage value, and the pole pair number;
and determining a dq axis current given value with an active heating function based on the torque angle, so as to complete the active heating function of the system according to the dq axis current given value.
Further, sending the active heat generation enabling instruction and the target heat generation power includes:
and sending an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request.
Further, obtaining the actual heating power includes:
and calculating the actual heating power according to the maximum heating power and the working state and the cooling system working state information which can be provided by the power train at present.
Further, the method further comprises:
and under the condition that the required heating power is smaller than zero, completing the table lookup calculation of the dq axis current given value according to a standard current table lookup method.
Further, in the case where the integrated powertrain system is capable of actively generating heat, determining an actual current value that satisfies the required heat generation power includes:
under the condition that the integrated power assembly system can actively generate heat, an actual current value meeting the required heating power is obtained according to the rotation speed, the torque value and the required heating power table.
Further, the working conditions under which the integrated power assembly system cannot actively generate heat include the following conditions:
the integrated power train is in a non-Normal state;
the fault level of the integrated power assembly system is zero torsion and above;
the temperature of the cooling water is higher than 30 ℃;
the working rotation speed of the system cooling water pump is lower than 5%;
the system temperature sensor fails.
In a second aspect, embodiments of the present application provide an integrated powertrain active heat generating device, comprising:
the sending module is used for sending an active heating enabling instruction and target heating power;
the acquisition module is used for acquiring the actual heating power;
the required heating power calculation module is used for calculating the required heating power based on the target heating power and the actual heating power;
the torque value calculation module is used for calculating a torque value which is output currently according to a current dq axis current value, a current dq axis inductance value, a flux linkage value and an polar logarithm under the condition that the required heating power is larger than zero;
the actual current value determining module is used for determining an actual current value meeting the required heating power under the condition that the integrated power assembly system can actively generate heat;
a torque angle calculation module for calculating a torque angle at an actual current value based on a current output torque value, a current dq-axis inductance value, a flux linkage value, and an pole pair number;
the current value determining module is used for determining a dq axis current given value with an active heating function based on the torque angle so as to complete the active heating function of the system according to the dq axis current given value.
Further, a sending module is used for:
and sending an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request.
Further, an acquisition module is configured to:
and calculating the actual heating power according to the maximum heating power and the working state and the cooling system working state information which can be provided by the power train at present.
Further, the current value determining module is further configured to:
under the condition that the required heating power is smaller than zero, the table look-up calculation of the dq axis current given value is completed according to the standard current table look-up device.
Further, the actual current value determining module is configured to:
under the condition that the integrated power assembly system can actively generate heat, an actual current value meeting the required heating power is obtained according to the rotation speed, the torque value and the required heating power table.
Further, the working conditions under which the integrated power assembly system cannot actively generate heat include the following conditions:
the integrated power train is in a non-Normal state;
the fault level of the integrated power assembly system is zero torsion and above;
the temperature of the cooling water is higher than 30 ℃;
the working rotation speed of the system cooling water pump is lower than 5%;
the system temperature sensor fails.
In a third aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements the integrated powertrain system active heat generation method as shown in the first aspect.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement an integrated powertrain system active heat generation method as described in the first aspect.
The active heating method, the device, the electronic equipment and the computer readable storage medium of the integrated power assembly system can realize the active heating function of the system in the full working condition range without influencing the driving experience of a driver; the heat generated by the motor and the controller is fully utilized; the autonomous heating system of the battery pack is omitted, and the vehicle cost is reduced.
The active heating method of the integrated power assembly system comprises the following steps: transmitting an active heating enabling instruction and target heating power; acquiring actual heating power; calculating required heating power based on the target heating power and the actual heating power; under the condition that the required heating power is larger than zero, calculating a current output torque value according to the current dq axis current value, the current dq axis inductance value, the flux linkage value and the pole logarithm; under the condition that the integrated power assembly system can actively generate heat, determining an actual current value meeting the required heating power; calculating a torque angle at an actual current value based on the current output torque value, the current dq-axis inductance value, the flux linkage value, and the pole pair number; and determining a dq axis current given value with an active heating function based on the torque angle, so as to complete the active heating function of the system according to the dq axis current given value.
Therefore, the method can realize the active heating function of the system within the full working condition range, and the driving experience of a driver is not influenced; the heat generated by the motor and the controller is fully utilized; the autonomous heating system of the battery pack is omitted, and the vehicle cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, it will be obvious that the drawings in the description below are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a system diagram of an application layer software architecture provided in one embodiment of the present application;
FIG. 2 is a flow chart of an active heat generation method for an integrated powertrain system according to one embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an integrated powertrain active heat generating device according to one embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative of the application and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
It is noted that relational terms such as first and second, and the like are 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. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
To solve the problems in the prior art, embodiments of the present application provide an active heating method, an active heating device, and an active heating device for an integrated power train, and a computer readable storage medium. The following first describes an active heating method of an integrated powertrain system provided in an embodiment of the present application.
The invention aims to provide an active heating scheme of an integrated power assembly system, which does not influence the running state of a vehicle and can meet the control precision and response time, wherein the active heating scheme covers the full working condition range of the running of the vehicle and comprises the working conditions of full rotation speed, full torque, different voltages, driving feedback and the like.
The heating of the power assembly system is mainly related to the square of current, the relation between the heating value of the system and the square of the current under different rotating speeds and torques can be obtained through bench calibration, the integrated power assembly system calculates the required heating power according to the heating required power of a battery pack and the current actual heating power of the assembly system, the current value required to be actively heated is obtained according to the table look-up of the heating power, the torque angle is regulated under the condition of the known current value, the output torque is ensured to be unchanged, and meanwhile, the active heating function is completed.
And calibrating the relation between the currents under different torques and the heating power of the integrated power assembly system on the motor test bench, and obtaining the current requirement when the whole vehicle is required to be actively heated by looking up a table according to the required heating power when the whole vehicle is running. And the integrated power assembly system calculates a currently running torque value according to the current value before active heating. The torque of the current operation is ensured to be unchanged, a torque angle under the working condition of active heating is calculated according to the following torque formula and the current set value of the dq axis of the operation of the integrated power assembly system is corrected according to the current value of the active heating.
The integrated power system calculates the actual heating requirement of the integrated power system through table lookup according to the current torque and the rotating speed, then calculates the heating power requirement of the power battery requirement according to the battery pack temperature, the environment temperature and the like, and obtains the system requirement heating power after the two requirements are subtracted. When the required heating power is smaller than 0, the system completes table lookup calculation of dq-axis current according to standard current table lookup data, and the dq-axis current is the same as the dq-axis current output without an active heating function. When the required heating power is greater than 0, the correction given to the dq-axis current is completed according to the above operation. Specifically, as shown in fig. 1, fig. 1 is a system diagram of an application layer software architecture according to an embodiment of the present application.
Fig. 2 is a schematic flow chart of an active heat generating method of an integrated power train according to an embodiment of the present application. As shown in fig. 2, the active heating method of the integrated power train includes:
s201, sending an active heating enabling instruction and a target heating power;
in one embodiment, the sending the active heat enable instruction and the target heat power includes:
and sending an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request.
S202, acquiring actual heating power;
in one embodiment, the acquiring the actual heating power includes:
and calculating the actual heating power according to the maximum heating power and the working state and the cooling system working state information which can be provided by the power train at present.
S203, calculating required heating power based on the target heating power and the actual heating power;
s204, under the condition that the required heating power is larger than zero, calculating a torque value which is output currently according to the current dq axis current value, the current dq axis inductance value, the flux linkage value and the pole pair number;
in one embodiment, the method further comprises:
and under the condition that the required heating power is smaller than zero, completing the table lookup calculation of the dq axis current given value according to a standard current table lookup method.
S205, determining an actual current value meeting the required heating power under the condition that the integrated power assembly system can actively generate heat;
in one embodiment, in the case that the integrated power assembly system is capable of actively generating heat, determining the actual current value that meets the required heat generation power includes:
under the condition that the integrated power assembly system can actively generate heat, an actual current value meeting the required heating power is obtained according to the rotation speed, the torque value and the required heating power table.
In one embodiment, the conditions under which the integrated powertrain system is unable to actively generate heat include the following:
the integrated power train is in a non-Normal state;
the fault level of the integrated power assembly system is zero torsion and above;
the temperature of the cooling water is higher than 30 ℃;
the working rotation speed of the system cooling water pump is lower than 5%;
the system temperature sensor fails.
S206, calculating a torque angle at an actual current value based on the current output torque value, the current dq axis inductance value, the flux linkage value and the pole pair number;
s207, determining a dq axis current given value with an active heating function based on the torque angle, so as to complete the active heating function of the system according to the dq axis current given value.
Specifically, the overall step flow is as follows:
(a) The power assembly system sends an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request;
(b) Calculating the actual heating power of the system according to the maximum heating power which can be provided by the power system at present, the working state of the power system, the working state of the cooling system and other information;
(c) Calculating the target heating power and the actual heating power to obtain the required heating power;
(d) Judging whether the current required heating power is greater than 0, if the required heating power is less than 0, completing the table lookup calculation of the dq axis current given value according to a standard current table lookup method;
(e) If the required heating power is greater than 0, obtaining a current output torque value Te1 according to a current feedback dq axis current value, a current dq axis inductance value, a flux linkage value and an electrode pair number by using the following formula;
(f) And judging whether the integrated power assembly system can actively generate heat. Active heating cannot be performed if the working conditions are as follows:
● The integrated power train is in a non-Normal state;
● The fault level of the integrated power assembly system is zero torsion and above;
● The temperature of the cooling water is higher than 30 ℃;
● The working rotation speed of the system cooling water pump is lower than 5%;
● The system temperature sensor fails;
if the power system can not actively heat, angle correction is not carried out, dq axis current set value operation is continued according to the previous standard current table look-up method, if the integrated power system can actively heat, the current value I2 meeting the current heating power requirement is obtained according to the current required heating power, the rotating speed, the torque value and the required heating power table look-up.
The torque angle beta 1 at the current I2 is calculated according to the torque value calculated in the step (e) and the current dq axis inductance, flux linkage and pole pair numerical parameters.
(g) According to the formula:
I d ＝I s cosβ
I q ＝I s sinβ
the dq axis current set value Id1 and Iq1 with the active heating function is obtained, and the power assembly system completes the active heating function of the system according to the current value.
In summary, the method can realize the active heating function of the system within the full working condition range, and the driving experience of a driver is not affected; the heat generated by the motor and the controller is fully utilized; the autonomous heating system of the battery pack is omitted, and the vehicle cost is reduced.
FIG. 3 is a schematic structural diagram of an integrated powertrain active heat generating device according to one embodiment of the present application, the integrated powertrain active heat generating device comprising:
a transmitting module 301, configured to transmit an active heating enabling instruction and a target heating power;
an acquisition module 302, configured to acquire actual heating power;
a required heating power calculation module 303, configured to calculate a required heating power based on the target heating power and the actual heating power;
the torque value calculation module 304 is configured to calculate a currently output torque value according to a current dq-axis current value, a current dq-axis inductance value, a flux linkage value, and an polar logarithm, when the required heating power is greater than zero;
the actual current value determining module 305 is configured to determine an actual current value that meets the required heating power under the condition that the integrated power assembly system can actively generate heat;
a torque angle calculation module 306 for calculating a torque angle at an actual current value based on the currently output torque value, the current dq-axis inductance value, the flux linkage value, and the pole pair number;
a current value determination module 307 for determining a dq-axis current setpoint with an active heating function based on the torque angle to complete the active heating function of the system based on the dq-axis current setpoint.
In one embodiment, the sending module 301 is configured to: and sending an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request.
In one embodiment, the obtaining module 302 is configured to: and calculating the actual heating power according to the maximum heating power and the working state and the cooling system working state information which can be provided by the power train at present.
In one embodiment, the actual current value determining module 305 is further configured to: under the condition that the required heating power is smaller than zero, the table look-up calculation of the dq axis current given value is completed according to the standard current table look-up device.
In one embodiment, the actual current value determining module 305 is configured to: under the condition that the integrated power assembly system can actively generate heat, an actual current value meeting the required heating power is obtained according to the rotation speed, the torque value and the required heating power table.
In one embodiment, the conditions under which the integrated powertrain system is unable to actively generate heat include the following:
the integrated power train is in a non-Normal state;
the fault level of the integrated power assembly system is zero torsion and above;
the temperature of the cooling water is higher than 30 ℃;
the working rotation speed of the system cooling water pump is lower than 5%;
the system temperature sensor fails.
Each module in the apparatus shown in fig. 3 has a function of implementing each step in fig. 2, and can achieve a corresponding technical effect, which is not described herein for brevity.
Fig. 4 shows a schematic structural diagram of an electronic device according to an embodiment of the present application.
The electronic device may comprise a processor 401 and a memory 402 in which computer program instructions are stored.
In particular, the processor 401 described above may include a Central Processing Unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits of embodiments of the present application.
In one embodiment, memory 402 may be Read Only Memory (ROM). In one embodiment, the ROM may be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.
The processor 401 reads and executes the computer program instructions stored in the memory 402 to implement any one of the integrated drive train active heat generating methods of the above embodiments.
In one example, the electronic device may also include a communication interface 403 and a bus 410. As shown in fig. 4, the processor 401, the memory 402, and the communication interface 403 are connected by a bus 410 and perform communication with each other.
The communication interface 403 is mainly used to implement communication between each module, device, unit and/or apparatus in the embodiments of the present application.
In addition, in combination with the integrated power train active heating method in the above embodiment, the embodiment of the application may be implemented by providing a computer readable storage medium. The computer readable storage medium has stored thereon computer program instructions; the computer program instructions, when executed by the processor, implement the active heat generation method of any of the integrated powertrain systems of the above embodiments.
It should be clear that the present application is not limited to the particular arrangements and processes described above and illustrated in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions, or change the order between steps, after appreciating the spirit of the present application.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be different from the order in the embodiments, or several steps may be performed simultaneously.
Aspects of the present application are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations 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, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to being, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, which are intended to be included in the scope of the present application.
Claims (10)
1. An active heating method of an integrated power train, comprising:
transmitting an active heating enabling instruction and target heating power;
acquiring actual heating power;
calculating required heating power based on the target heating power and the actual heating power;
under the condition that the required heating power is larger than zero, calculating a current output torque value according to the current dq axis current value, the current dq axis inductance value, the flux linkage value and the pole logarithm;
under the condition that the integrated power assembly system can actively generate heat, determining an actual current value meeting the required heating power;
calculating a torque angle at an actual current value based on the current output torque value, the current dq-axis inductance value, the flux linkage value, and the pole pair number;
and determining a dq axis current given value with an active heating function based on the torque angle, so as to complete the active heating function of the system according to the dq axis current given value.
2. The integrated powertrain system active heat generation method of claim 1, wherein the sending an active heat generation enable command and a target heat generation power comprises:
and sending an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request.
3. The method of active heat generation of an integrated powertrain system of claim 1, wherein the obtaining actual heat generation power comprises:
and calculating the actual heating power according to the maximum heating power and the working state and the cooling system working state information which can be provided by the power train at present.
4. The integrated powertrain system active heat generation method of claim 1, further comprising:
and under the condition that the required heating power is smaller than zero, completing the table lookup calculation of the dq axis current given value according to a standard current table lookup method.
5. The method of active heat generation of an integrated powertrain system of claim 1, wherein determining an actual current value that meets a required heat generation power in a case where the integrated powertrain system is capable of active heat generation comprises:
under the condition that the integrated power assembly system can actively generate heat, an actual current value meeting the required heating power is obtained according to the rotation speed, the torque value and the required heating power table.
6. The method of active heat generation of an integrated powertrain of claim 1, wherein the conditions under which the integrated powertrain is unable to actively generate heat include:
the integrated power train is in a non-Normal state;
the fault level of the integrated power assembly system is zero torsion and above;
the temperature of the cooling water is higher than 30 ℃;
the working rotation speed of the system cooling water pump is lower than 5%;
the system temperature sensor fails.
7. An integrated powertrain active heat generating device, comprising:
the sending module is used for sending an active heating enabling instruction and target heating power;
the acquisition module is used for acquiring the actual heating power;
the required heating power calculation module is used for calculating required heating power based on the target heating power and the actual heating power;
the torque value calculation module is used for calculating a torque value which is output currently according to a current dq axis current value, a current dq axis inductance value, a flux linkage value and an polar logarithm under the condition that the required heating power is larger than zero;
the actual current value determining module is used for determining an actual current value meeting the required heating power under the condition that the integrated power assembly system can actively generate heat;
a torque angle calculation module for calculating a torque angle at an actual current value based on a current output torque value, a current dq-axis inductance value, a flux linkage value, and an pole pair number;
the current value determining module is used for determining a dq axis current given value with an active heating function based on the torque angle so as to complete the active heating function of the system according to the dq axis current given value.
8. The integrated powertrain active heat generating device of claim 7, wherein the transmission module is configured to: and sending an active heating enabling instruction and target heating power according to the working state of the whole vehicle and the thermal management request.
9. An electronic device, the electronic device comprising: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements an integrated powertrain system active heat generation method as claimed in any one of claims 1-6.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon computer program instructions, which when executed by a processor, implement the integrated drive train active heating method according to any of claims 1-6.
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| CN202310144547.8A CN116101128A (en) | 2023-02-10 | 2023-02-10 | Active heating method, device, equipment and medium for integrated power assembly system |
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