CN115686102A - Motor temperature control method and device and engineering vehicle - Google Patents
Motor temperature control method and device and engineering vehicle Download PDFInfo
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Abstract
The application discloses a motor temperature control method, a motor temperature control device and an engineering vehicle, wherein state parameters of a motor are obtained; wherein the state parameters comprise the temperature and the operation parameters of the motor; then calculating the heating power consumption change rate of the motor according to the operation parameters; finally, determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the heating power consumption change rate; the method comprises the steps of obtaining the temperature and the operation parameters of the motor at the current moment, calculating the heating power consumption change rate of the motor based on the operation parameters at the current moment, predicting the heating change trend of the motor, namely predicting the heating quantity increasing speed of the motor, predicting the subsequent heating quantity of the motor, determining the operation parameters of a cooling part of the motor according to the temperature at the current moment to meet the heat dissipation requirement at the current moment, and simultaneously considering the predicted subsequent heating quantity of the motor to respond the heat dissipation requirement of the motor in advance, thereby accelerating the heat dissipation response speed and improving the heat dissipation effect of the motor.
Description
Technical Field
The application relates to the technical field of motor temperature control, in particular to a motor temperature control method, a motor temperature control device and an engineering vehicle.
Background
With the continuous development of new energy technology, more and more vehicles adopt motors as important components in driving systems, such as pure electric vehicles, hybrid vehicles and the like. However, in complex road driving conditions, damage to the electric motor or associated electronics is often caused by excessive temperatures or large temperature fluctuations, and temperature control of the electric motor is therefore necessary.
Currently, most cooling systems for electric drive assemblies are in series, i.e., the entire electric drive assembly is connected in series by a circulation loop to dissipate heat of the entire electric drive assembly. For many vehicles, the temperature of the motor is collected, and the operating parameters of the cooling system, such as the rotation speed of the water pump, are controlled according to the temperature of the motor. However, the temperature of the motor is collected with a certain time delay, and it is obviously impossible to avoid the motor temperature from being too high by taking heat dissipation measures after the temperature of the motor rises, which may cause the motor to reach a high temperature state, thereby causing the loss of the motor.
Disclosure of Invention
The present application is proposed to solve the above-mentioned technical problems. The embodiment of the application provides a motor temperature control method and device and an engineering vehicle, and solves the technical problems.
According to an aspect of the present application, there is provided a motor temperature control method including: acquiring state parameters of the motor; wherein the state parameters include a temperature and an operating parameter of the motor; calculating the heating power consumption change rate of the motor according to the operation parameters; and determining an operating parameter of a cooling component of the motor according to the temperature of the motor and the rate of change of the heat generating power consumption.
In one embodiment, the operating parameters include torque and rotational speed of the electric machine; wherein the acquiring of the state parameter of the motor comprises: and periodically acquiring the temperature, the torque and the rotating speed of the motor.
In an embodiment, the calculating, according to the operation parameter, a rate of change of heat generation and power consumption of the motor includes: calculating to obtain the calorific value of the motor at the current moment according to the torque and the rotating speed of the motor at the current moment; and calculating the heating power consumption change rate of the motor according to the heating value of the motor at the previous moment and the heating value of the motor at the current moment.
In an embodiment, the calculating, according to the motor torque and the motor speed at the current time, a heat generation amount of the motor at the current time includes: and calculating to obtain the heat productivity of the motor at the current moment according to the torque of the motor, the rotating speed of the motor and the efficiency of the motor at the current moment.
In one embodiment, said determining an operating parameter of a cooling component of said electric machine based on a temperature of said electric machine and said rate of change of heat generating power consumption comprises: determining the operation parameters of a cooling part of the motor according to the temperature of the motor at the current moment and the heating power consumption change rate; wherein the heating power consumption change rate includes a ratio of the motor heating value at the current time to the motor heating value at the previous time.
In one embodiment, the cooling part includes: a speed-regulating water pump and a speed-regulating fan; wherein the determining the operation parameters of the cooling component of the motor according to the temperature of the motor at the current moment and the heat generation power consumption change rate comprises: and determining the rotating speed of the speed-regulating water pump and the rotating speed of the speed-regulating fan according to the magnitude relation between the motor temperature at the current moment, the heating power consumption change rate and 1.
In one embodiment, the speed-regulating water pump comprises a plurality of speed gears, and the speed-regulating fan comprises a plurality of speed gears; wherein, according to the motor temperature at the current moment, the heating power consumption change rate and the size relation of 1, determining the rotating speed of the speed regulation water pump and the rotating speed of the speed regulation fan comprises: and determining the rotating speed gear of the speed-regulating water pump and the rotating speed gear of the speed-regulating fan according to the magnitude relation between the motor temperature at the current moment, the heating power consumption change rate and 1.
In an embodiment, after the calculating the rate of change of the heat generation power consumption of the motor according to the operation parameter, the method for controlling the temperature of the motor further includes: filtering the heating power consumption change rate to obtain the filtered heating power consumption change rate; the determining an operating parameter of a cooling component of the motor based on the temperature of the motor and the rate of change of the heat generating power consumption comprises: and determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the filtered heating power consumption change rate.
According to another aspect of the present application, there is provided a motor temperature control apparatus including: the parameter acquisition module is used for acquiring the state parameters of the motor; wherein the state parameters include a temperature and an operating parameter of the motor; the change calculation module is used for calculating the heating power consumption change rate of the motor according to the operation parameters; and the cooling execution module is used for determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the heat generation power consumption change rate.
According to another aspect of the present application, there is provided a work vehicle including: a motor; the cooling part is communicated with a heat dissipation water channel of the motor and is used for dissipating heat of the motor; and the motor temperature control device is in communication connection with the motor and the cooling component.
According to the motor temperature control method, the motor temperature control device and the engineering vehicle, the state parameters of the motor are obtained; wherein the state parameters comprise the temperature and the operation parameters of the motor; then calculating the heating power consumption change rate of the motor according to the operation parameters; the heating power consumption change rate represents the heating power change trend of the motor; finally, determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the heating power consumption change rate; the method comprises the steps of obtaining the temperature and the operation parameters of the motor at the current moment, calculating the heating power consumption change rate of the motor based on the operation parameters at the current moment, predicting the heating change trend of the motor, namely predicting the heating quantity increasing speed of the motor, predicting the subsequent heating quantity of the motor, determining the operation parameters of a cooling part of the motor according to the temperature at the current moment to meet the heat dissipation requirement at the current moment, and simultaneously considering the predicted subsequent heating quantity of the motor to respond the heat dissipation requirement of the motor in advance, thereby accelerating the heat dissipation response speed and improving the heat dissipation effect of the motor.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent like parts or steps.
Fig. 1 is a schematic structural diagram of a work vehicle to which the present application is applied.
Fig. 2 is a schematic flow chart of a motor temperature control method according to an exemplary embodiment of the present application.
Fig. 3 is a schematic flowchart of a motor temperature control method according to another exemplary embodiment of the present application.
FIG. 4 is a schematic flow chart diagram illustrating a method for determining operating parameters of a cooling component according to an exemplary embodiment of the present application.
Fig. 5 is a schematic flow chart of a motor temperature control method according to another exemplary embodiment of the present application.
Fig. 6 is a schematic structural diagram of a motor temperature control device according to an exemplary embodiment of the present application.
Fig. 7 is a schematic structural diagram of a motor temperature control device according to another exemplary embodiment of the present application.
Fig. 8 is a block diagram of an electronic device provided in an exemplary embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.
Fig. 1 is a schematic structural diagram of a work vehicle to which the present application is applied. As shown in fig. 1, the work vehicle includes: a motor 1 and a cooling member 2. Wherein, this cooling part 2 communicates with the heat dissipation water course of motor 1, and this cooling part 2 is used for dispelling the heat for the motor. Specifically, the work vehicle may be a mixer truck, an excavator, or the like, and the motor 1 may be a drive motor or a work motor of the work vehicle.
However, the temperature of the motor 1 represents the current heat dissipation requirement of the motor 1, and there is a time lag from the acquisition of the temperature of the motor 1 to the response of the cooling part 2 to the action on the motor 1. That is, the heat dissipation requirement of the electric machine 1 is not reached immediately, but after a certain time, after which the heat dissipation requirement of the electric machine 1 may change, for example, to a high temperature state or already over-temperature. Therefore, the heating power consumption change rate of the motor 1 is calculated according to the application, the heat productivity trend of the motor 1 is judged in advance, the heat dissipation requirement in the later period of the motor 1 is estimated, the heat dissipation requirement is responded in advance, and the heat dissipation requirement of the motor 1 is met better.
Fig. 2 is a schematic flow chart of a motor temperature control method according to an exemplary embodiment of the present application. As shown in fig. 2, the motor temperature control method includes the following steps:
step 210: and acquiring state parameters of the motor.
Wherein the state parameters include temperature and operating parameters of the motor. Specifically, the operating parameters include torque and rotational speed of the motor; the specific implementation manner of step 210 may be: the temperature, the torque and the rotating speed of the motor are acquired periodically. By setting the period (for example, 100 milliseconds) to periodically acquire the temperature, the torque and the rotating speed of the motor, the operating state of the cooling component can be periodically adjusted to ensure that the temperature of the motor is controlled in a proper range.
Step 220: and calculating to obtain the heating power consumption change rate of the motor according to the operation parameters.
The heating power consumption change rate represents the change trend of the heating quantity of the motor. Specifically, the heating power consumption change rate of the motor is calculated according to the torque and the rotating speed of the motor, so that the heating power consumption change trend of the motor is predicted.
Step 230: and determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the change rate of the heating power consumption.
The increase (decrease) of the heat generation amount to the increase (decrease) of the temperature of the motor requires a process in which the material of the motor absorbs heat and heat conduction and heat diffusion occur, and the process has a certain time difference. In addition, the heat carrier of the cooling component is cooling liquid, and the cooling liquid also needs a process of absorbing heat and releasing heat in the circulation of the cooling system, and the process needs to pass through each link of the cooling component, and the process needs a certain time, so that the lag time in controlling the temperature of the motor is caused.
The method comprises the steps of adjusting operation parameters of a cooling component according to the temperature and the heating power consumption change rate of a motor, namely calculating the real-time heating amount of the motor during the operation of the motor according to the operation parameters of the motor, determining the working mode of the cooling component according to the temperature of the motor at the moment and the heating power consumption change rate of the motor, and enabling the cooling component to enter the working mode aiming at the predicted heat dissipation amount in advance. Therefore, before the temperature of the motor rises, the response of the cooling system is adopted, the current heat dissipation requirement and the subsequent heat dissipation requirement of the motor are ensured to be met, the current and future heat dissipation requirements are considered, the heat dissipation of the motor is responded in advance, and the heat dissipation of the motor is better realized.
According to the motor temperature control method, the state parameters of the motor are obtained; wherein the state parameters comprise the temperature and the operation parameters of the motor; then calculating the heating power consumption change rate of the motor according to the operation parameters; the heating power consumption change rate represents the heating power change trend of the motor; finally, determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the heating power consumption change rate; the method comprises the steps of obtaining the temperature and the operation parameters of the motor at the current moment, calculating the heating power consumption change rate of the motor based on the operation parameters at the current moment, predicting the heating change trend of the motor, namely predicting the heating quantity increasing speed of the motor, predicting the subsequent heating quantity of the motor, determining the operation parameters of a cooling part of the motor according to the temperature at the current moment to meet the heat dissipation requirement at the current moment, and simultaneously considering the predicted subsequent heating quantity of the motor to respond the heat dissipation requirement of the motor in advance, thereby accelerating the heat dissipation response speed and improving the heat dissipation effect of the motor.
Fig. 3 is a schematic flow chart of a motor temperature control method according to another exemplary embodiment of the present application. As shown in fig. 3, the step 220 may include:
step 221: and calculating to obtain the heat productivity of the motor at the current moment according to the torque and the rotating speed of the motor at the current moment.
In an embodiment, the specific implementation manner of step 221 may be: and calculating to obtain the heat productivity of the motor at the current moment according to the torque of the motor, the rotating speed of the motor and the efficiency of the motor at the current moment. Specifically, the heat productivity of the motor can be calculated by adopting the following formula:
where Q is the heating value, M is the motor torque, n is the motor speed, and η is the efficiency (i.e., the ratio of the output power to the input power of the motor).
Step 222: and calculating the heating power consumption change rate of the motor according to the heating value of the motor at the previous moment and the heating value of the motor at the current moment.
Specifically, the heating power consumption change rate can be calculated by using the following formula:
wherein dQ is the rate of change of heating power consumption, Q t+Δt For the heat generation of the motor at the present moment, Q t The heat generated by the motor at the previous moment. According to the heating power consumption change rate, the change direction and the change magnitude of the subsequent temperature of the motor can be predicted, so that the response can be carried out in advance to better realize the heat dissipation of the motor. It should be understood that the above formula is only an exemplary way to calculate the rate of change of the heating power, and that other calculation methods may be used in the present application, for example
The present application does not limit the heating power change rate calculation method.
In an embodiment, the cooling member may include: a speed-regulating water pump and a speed-regulating fan; the specific implementation manner of the step 230 may be: and determining the rotating speed of the speed-regulating water pump and the rotating speed of the speed-regulating fan according to the relationship between the motor temperature at the current moment, the heating power consumption change rate and 1.
Specifically, the rotational speed of speed governing water pump and speed governing fan is controlled according to the motor temperature at the present moment, for example, if the motor temperature at the present moment is higher, then it is great to explain the heat dissipation demand of motor, should suitably increase the rotational speed of speed governing water pump and speed governing fan this moment to accelerate the heat dissipation of motor, if the motor temperature at the present moment is lower, then it is less to explain the heat dissipation demand of motor, should suitably reduce the rotational speed of speed governing water pump and speed governing fan this moment, in order to avoid the motor cooling excessive, also can the energy saving simultaneously. The heating power consumption change rate is the ratio of the heating amount of the motor at the current moment to the heating amount of the motor at the previous moment, and the change direction (increase or decrease) and the change amount of the heating amount of the motor can be reflected through the size relation between the heating power consumption change rate and 1, for example, if the heating power consumption change rate is greater than 1, the heating amount of the motor is increased, the rotating speed of the speed-regulating water pump and the speed-regulating fan should be increased appropriately at the moment, so that the heat dissipation of the motor is accelerated, if the heating power consumption change rate is greater than 1, the motor is in a rapid heating stage, the rotating speed of the speed-regulating water pump and the speed-regulating fan should be increased greatly at the moment, if the heating power consumption change rate is less than 1, the heating amount of the motor is reduced, at the moment, the rotating speeds of the speed-regulating water pump and the speed-regulating fan can be reduced appropriately, so that the motor is prevented from being cooled excessively, and the energy consumption can be saved. The motor temperature and the power consumption rate of change that generates heat of this application moment of simultaneous consideration to compromise the heat dissipation demand and subsequent heat dissipation demand of moment, thereby the temperature of better control motor is located a within range that is fit for motor work.
In one embodiment, the speed-regulating water pump comprises a plurality of speed gears, and the speed-regulating fan comprises a plurality of speed gears; taking the example that the speed-regulating water pump and the speed-regulating fan both include 7 gears (the rotating speed of the speed-regulating water pump and the speed-regulating fan increases sequentially from 1 gear to 7 gears) as an example, it should be understood that the application only gives the gear number of the speed-regulating water pump and the speed-regulating fan by way of example, and does not limit the gear number of the speed-regulating water pump and the speed-regulating fan. As shown in fig. 4, three temperature thresholds T1, T2, and T3 may be set according to the number of gears of the speed-adjustable water pump and the speed-adjustable fan, where T1< T2< T3, and the specific implementation manner of step 230 may be: and determining the rotating speed gear of the speed-regulating water pump and the rotating speed gear of the speed-regulating fan according to the relationship between the motor temperature, the heating power consumption change rate and 1 at the current moment. Specifically, the magnitude relation between the motor temperature at the current moment and T1, T2, and T3 is first determined to determine which region the rotational speed gear of the speed-regulating water pump and the rotational speed gear of the speed-regulating fan should belong to, and then the magnitude relation between the heating power consumption change rate and 1 is determined to determine which specific rotational speed gear the speed-regulating water pump and the speed-regulating fan should correspond to.
As shown in FIG. 4, if T ≦ T1, it indicates that the temperature of the motor at the current moment is lower; if the dQ is less than or equal to 1, the calorific value of the motor is in a descending or stable state, the future temperature of the motor is predicted to be reduced, at the moment, the measure 1 is taken, the corresponding speed-regulating water pump and the corresponding speed-regulating fan stop rotating, if the dQ is greater than 1, the calorific value of the motor is in an ascending state, the future temperature of the motor is predicted to be increased, at the moment, the measure 2 is taken, and the corresponding speed-regulating water pump and the corresponding speed-regulating fan are operated in 1 gear. By analogy, 6 middle states of dQ less than or equal to 1 and dQ greater than or equal to 1 under the conditions that T1 is more than T and less than or equal to T2, T2 is more than or equal to T3 and T3 is more than T can be set, and the 6 middle states correspond to measures 3-8 respectively, wherein 2-7 gears are adopted for the rotating speed gears of the speed-regulating water pump and the speed-regulating fan in the measures 3-8 respectively, and when the rotating speed gears of the speed-regulating water pump and the speed-regulating fan adopt 7 gears (highest gear), a high-temperature alarm is given out.
Fig. 5 is a schematic flowchart of a motor temperature control method according to another exemplary embodiment of the present application. As shown in fig. 5, after step 220, the method for controlling the temperature of the motor may further include:
step 240: and filtering the heating power consumption change rate to obtain the filtered heating power consumption change rate.
Correspondingly, step 230 may include:
step 231: and determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the filtered heating power consumption change rate.
Since there may be interference signals in the process of collecting data by the sensor, the collected data needs to be filtered to eliminate interference. Considering that the motor may have certain torque sudden change and other conditions in the operation process, if initial data such as torque, rotating speed and the like or heating value are directly filtered, actual data may be deleted, so that the method and the device can ensure that the operation state sudden change of the motor can be kept in the heating power change rate by filtering the heating power change rate so as to better reflect the operation state change of the motor, and the heat dissipation requirement of the motor in the later period can be replaced and estimated.
Fig. 6 is a schematic structural diagram of a motor temperature control device according to an exemplary embodiment of the present application. As shown in fig. 6, the motor temperature control device 60 includes: the parameter acquisition module 61 is used for acquiring the state parameters of the motor; wherein the state parameters comprise the temperature and the operation parameters of the motor; the change calculation module 62 is used for calculating the heating power consumption change rate of the motor according to the operation parameters; the heating power consumption change rate represents the heating power change trend of the motor; and a cooling execution module 63 for determining the operation parameters of the cooling component of the motor according to the temperature of the motor and the rate of change of the heat generation power consumption.
According to the motor temperature control device, the state parameters of the motor are acquired through the parameter acquisition module 61; wherein the state parameters comprise the temperature and the operation parameters of the motor; then, the change calculation module 62 calculates the heating power consumption change rate of the motor according to the operation parameters; the heating power consumption change rate represents the heating power change trend of the motor; finally, the cooling execution module 63 determines the operation parameters of the cooling part of the motor according to the temperature of the motor and the heating power consumption change rate; the method comprises the steps of obtaining the temperature and the operation parameters of the motor at the current moment, calculating the heating power consumption change rate of the motor based on the operation parameters at the current moment, predicting the heating change trend of the motor, namely predicting the heating quantity increasing speed of the motor, predicting the subsequent heating quantity of the motor, determining the operation parameters of a cooling part of the motor according to the temperature at the current moment to meet the heat dissipation requirement at the current moment, and simultaneously considering the predicted subsequent heating quantity of the motor to respond the heat dissipation requirement of the motor in advance, thereby accelerating the heat dissipation response speed and improving the heat dissipation effect of the motor.
In one embodiment, the operating parameters include torque and speed of the electric machine; the parameter obtaining module 61 may be further configured to: the temperature, the torque and the rotating speed of the motor are acquired periodically.
Fig. 7 is a schematic structural diagram of a motor temperature control device according to another exemplary embodiment of the present application. As shown in fig. 7, the change calculation module 62 may include: the heating value calculation unit 621 is configured to calculate a heating value of the motor at the current time according to the motor torque and the motor rotation speed at the current time; and a change rate calculation unit 622 configured to calculate a heat generation power consumption change rate of the motor according to the heat generation amount of the motor at the previous time and the heat generation amount of the motor at the current time.
Specifically, the heat value of the motor can be calculated by the following formula:
wherein Q is the heating value, M is the motor torque, n is the motor rotation speed, and eta is the efficiency.
Specifically, the heating power consumption change rate can be calculated by using the following formula:
wherein dQ is the rate of change of heating power consumption, Q t+Δt For the heat generation of the motor at the present moment, Q t The heat generated by the motor at the previous moment. According to the heating power consumption change rate, the change direction and the change magnitude of the subsequent temperature of the motor can be predicted, so that the motor can respond in advance to better realize the heat dissipation of the motor.
In an embodiment, the heating value calculating unit 621 may be further configured to: and calculating to obtain the heat productivity of the motor at the current moment according to the torque of the motor, the rotating speed of the motor and the efficiency of the motor at the current moment.
In an embodiment, the cooling member may include: a speed-regulating water pump and a speed-regulating fan; wherein, the cooling executing module 63 may be further configured to: and determining the rotating speed of the speed-regulating water pump and the rotating speed of the speed-regulating fan according to the relationship between the motor temperature at the current moment, the heating power consumption change rate and 1.
Specifically, the rotating speeds of the speed regulation water pump and the speed regulation fan are controlled according to the motor temperature at the current moment, for example, if the motor temperature at the current moment is higher, the heat dissipation requirement of the motor is larger, the rotating speeds of the speed regulation water pump and the speed regulation fan should be properly increased at the moment to accelerate the heat dissipation of the motor, if the motor temperature at the current moment is lower, the heat dissipation requirement of the motor is smaller, the rotating speeds of the speed regulation water pump and the speed regulation fan should be properly reduced at the moment to avoid excessive cooling of the motor, and meanwhile, the energy consumption can be saved. The heating power consumption change rate is the ratio of the heating amount of the motor at the current moment to the heating amount of the motor at the previous moment, and the change direction (increase or decrease) and the change amount of the heating amount of the motor can be reflected through the size relation between the heating power consumption change rate and 1, for example, if the heating power consumption change rate is greater than 1, the heating amount of the motor is increased, the rotating speed of the speed-regulating water pump and the speed-regulating fan should be increased appropriately at the moment, so that the heat dissipation of the motor is accelerated, if the heating power consumption change rate is greater than 1, the motor is in a rapid heating stage, the rotating speed of the speed-regulating water pump and the speed-regulating fan should be increased greatly at the moment, if the heating power consumption change rate is less than 1, the heating amount of the motor is reduced, at the moment, the rotating speeds of the speed-regulating water pump and the speed-regulating fan can be reduced appropriately, so that the motor is prevented from being cooled excessively, and the energy consumption can be saved. The motor temperature and the power consumption rate of change that generates heat of this application moment of simultaneous consideration to compromise the heat dissipation demand and subsequent heat dissipation demand of moment, thereby the temperature of better control motor is located a within range that is fit for motor work.
In one embodiment, the speed-regulating water pump comprises a plurality of speed gears, and the speed-regulating fan comprises a plurality of speed gears; wherein, the cooling executing module 63 may be further configured to: and determining the rotating speed gear of the speed-regulating water pump and the rotating speed gear of the speed-regulating fan according to the relationship between the motor temperature, the heating power consumption change rate and 1 at the current moment.
In an embodiment, as shown in fig. 7, the motor temperature control device 60 may further include: and the filtering module 64 is configured to perform filtering processing on the heating power consumption change rate to obtain a filtered heating power consumption change rate. Correspondingly, the cooling performing module 63 may be further configured to: and determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the filtered heating power consumption change rate.
Next, an electronic apparatus according to an embodiment of the present application is described with reference to fig. 8. The electronic device may be either or both of the first device and the second device, or a stand-alone device separate from them, which stand-alone device may communicate with the first device and the second device to receive the acquired input signals therefrom.
FIG. 8 illustrates a block diagram of an electronic device in accordance with an embodiment of the present application.
As shown in fig. 8, the electronic device 10 includes one or more processors 11 and memory 12.
The processor 11 may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.
Memory 12 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium and executed by processor 11 to implement the methods of the various embodiments of the present application described above and/or other desired functions. Various contents such as an input signal, a signal component, a noise component, etc. may also be stored in the computer-readable storage medium.
In one example, the electronic device 10 may further include: an input device 13 and an output device 14, which are interconnected by a bus system and/or other form of connection mechanism (not shown).
When the electronic device is a stand-alone device, the input means 13 may be a communication network connector for receiving the acquired input signals from the first device and the second device.
The input device 13 may also include, for example, a keyboard, a mouse, and the like.
The output device 14 may output various information including the determined distance information, direction information, and the like to the outside. The output devices 14 may include, for example, a display, speakers, a printer, and a communication network and its connected remote output devices, among others.
Of course, for simplicity, only some of the components of the electronic device 10 relevant to the present application are shown in fig. 8, and components such as buses, input/output interfaces, and the like are omitted. In addition, the electronic device 10 may include any other suitable components depending on the particular application.
The computer program product may be written with program code for performing the operations of embodiments of the present application in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server.
The computer-readable storage medium may take any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may include, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (10)
1. A method of controlling temperature of a motor, comprising:
acquiring state parameters of the motor; wherein the state parameters include a temperature and an operating parameter of the motor;
calculating the heating power consumption change rate of the motor according to the operation parameters; and
and determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the heat generation power consumption change rate.
2. The motor temperature control method of claim 1, wherein the operating parameters include torque and rotational speed of the motor; wherein the acquiring of the state parameter of the motor comprises:
and periodically acquiring the temperature, the torque and the rotating speed of the motor.
3. The method of claim 1, wherein the calculating a rate of change of heat generation power consumption of the motor based on the operating parameter comprises:
calculating to obtain the heat productivity of the motor at the current moment according to the torque and the rotating speed of the motor at the current moment; and
and calculating the heating power consumption change rate of the motor according to the heating value of the motor at the previous moment and the heating value of the motor at the current moment.
4. The method of claim 3, wherein the calculating the heat generation amount of the motor at the current time according to the torque and the speed of the motor at the current time comprises:
and calculating to obtain the heat productivity of the motor at the current moment according to the torque of the motor, the rotating speed of the motor and the efficiency of the motor at the current moment.
5. The method of claim 1, wherein determining the operating parameter of the cooling component of the electric machine based on the temperature of the electric machine and the rate of change of heat generating power consumption comprises:
determining the operation parameters of a cooling part of the motor according to the temperature of the motor at the current moment and the heating power consumption change rate; wherein the heating power consumption change rate includes a ratio of the motor heating value at the current time to the motor heating value at the previous time.
6. The motor temperature control method according to claim 5, wherein the cooling member includes: a speed-regulating water pump and a speed-regulating fan; wherein the determining the operation parameters of the cooling component of the motor according to the temperature of the motor at the current moment and the heat generation power consumption change rate comprises:
and determining the rotating speed of the speed-regulating water pump and the rotating speed of the speed-regulating fan according to the magnitude relation between the motor temperature at the current moment, the heating power consumption change rate and 1.
7. The motor temperature control method of claim 6, wherein the speed regulated water pump includes a plurality of speed gears and the speed regulated fan includes a plurality of speed gears; wherein, according to the motor temperature at the current moment, the heating power consumption change rate and the size relation of 1, determining the rotating speed of the speed regulation water pump and the rotating speed of the speed regulation fan comprises:
and determining the rotating speed gear of the speed-regulating water pump and the rotating speed gear of the speed-regulating fan according to the magnitude relation between the motor temperature at the current moment, the heating power consumption change rate and 1.
8. The motor temperature control method according to claim 1, wherein after said calculating a rate of change in heat generation power consumption of the motor based on the operating parameter, the motor temperature control method further comprises:
filtering the heating power consumption change rate to obtain the filtered heating power consumption change rate;
the determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the rate of change of the heat generation power consumption comprises:
and determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the filtered heating power consumption change rate.
9. A temperature control apparatus for a motor, comprising:
the parameter acquisition module is used for acquiring the state parameters of the motor; wherein the state parameters include a temperature and an operating parameter of the motor;
the change calculation module is used for calculating the heating power consumption change rate of the motor according to the operation parameters; and
and the cooling execution module is used for determining the operation parameters of the cooling part of the motor according to the temperature of the motor and the heat generation power consumption change rate.
10. A work vehicle, characterized by comprising:
a motor;
the cooling part is communicated with a heat dissipation water channel of the motor and is used for dissipating heat of the motor; and
the motor temperature control apparatus of claim 9, said motor temperature control apparatus being in communication with said motor and said cooling member.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117452988A (en) * | 2023-12-22 | 2024-01-26 | 深圳市国威通电子技术有限公司 | Intelligent temperature control method, device, equipment and medium for high-voltage connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170043681A (en) * | 2015-10-13 | 2017-04-24 | 현대자동차주식회사 | System of cooling electric components for vehicle |
| CN107499176A (en) * | 2017-05-05 | 2017-12-22 | 宝沃汽车（中国）有限公司 | The cooling means and device of vehicle power drive system |
| CN113043835A (en) * | 2021-06-01 | 2021-06-29 | 北汽福田汽车股份有限公司 | Cooling control method and device, medium and equipment of electric drive system |
| CN113844268A (en) * | 2021-11-09 | 2021-12-28 | 珠海英搏尔电气股份有限公司 | Method and device for determining the operating speed of a cooling device of an electric vehicle |
| CN114725543A (en) * | 2022-03-25 | 2022-07-08 | 上汽大众汽车有限公司 | Power battery thermal management method and system based on driver intention recognition |
-
2022
- 2022-10-31 CN CN202211350188.3A patent/CN115686102B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170043681A (en) * | 2015-10-13 | 2017-04-24 | 현대자동차주식회사 | System of cooling electric components for vehicle |
| CN107499176A (en) * | 2017-05-05 | 2017-12-22 | 宝沃汽车（中国）有限公司 | The cooling means and device of vehicle power drive system |
| CN113043835A (en) * | 2021-06-01 | 2021-06-29 | 北汽福田汽车股份有限公司 | Cooling control method and device, medium and equipment of electric drive system |
| CN113844268A (en) * | 2021-11-09 | 2021-12-28 | 珠海英搏尔电气股份有限公司 | Method and device for determining the operating speed of a cooling device of an electric vehicle |
| CN114725543A (en) * | 2022-03-25 | 2022-07-08 | 上汽大众汽车有限公司 | Power battery thermal management method and system based on driver intention recognition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117452988A (en) * | 2023-12-22 | 2024-01-26 | 深圳市国威通电子技术有限公司 | Intelligent temperature control method, device, equipment and medium for high-voltage connector |
| CN117452988B (en) * | 2023-12-22 | 2024-04-12 | 深圳市国威通电子技术有限公司 | Intelligent temperature control method, device, equipment and medium for high-voltage connector |
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