CN116749752A - Control method, device and storage medium for automobile cooling system - Google Patents
Control method, device and storage medium for automobile cooling system Download PDFInfo
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- CN116749752A CN116749752A CN202310667484.4A CN202310667484A CN116749752A CN 116749752 A CN116749752 A CN 116749752A CN 202310667484 A CN202310667484 A CN 202310667484A CN 116749752 A CN116749752 A CN 116749752A
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- 238000001816 cooling Methods 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000000110 cooling liquid Substances 0.000 claims description 54
- 239000000725 suspension Substances 0.000 claims description 21
- 238000010586 diagram Methods 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a control method, a computer device and a storage medium of an automobile cooling system, wherein the automobile cooling system is used for providing cooling for a plurality of vehicle-mounted devices through the same cooling loop. According to the invention, the automobile cooling system can only run for a time equivalent to the running time in one working period, so that the cooling requirement of the automobile equipment to be cooled can be met with higher efficiency under the condition that only part of the automobile equipment is the automobile equipment to be cooled, and the actual running time of the automobile cooling system can be reduced when the automobile cooling system is intermittently operated, thereby reducing the energy consumption of the running of the automobile cooling system and the service life loss of the cooling system. The invention is widely applied to the technical field of automobiles.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a control method, a computer device and a storage medium of an automobile cooling system.
Background
When the vehicle-mounted equipment works, heat is generated, and the vehicle-mounted equipment needs to be cooled through the vehicle cooling system so as to maintain a good working state of the vehicle-mounted equipment and maintain the use safety of the vehicle. A car generally has a plurality of on-vehicle equipment that need cooling, adopts the mode that a cooling system (or a cooling circuit in the shared cooling system) of a plurality of on-vehicle equipment sharing, can simplify the setting of cooling system, reduces car system's complexity, makes the use and the maintenance of car more convenient. For example, in the present electric vehicle, a cooling system may be shared by a motor, an MCU (micro control unit on board), and vehicle-mounted devices such as a DC-DC conversion circuit.
However, in the case where a plurality of in-vehicle devices share one cooling system, it is easy to occur that only a part of in-vehicle devices has a cooling requirement and the other in-vehicle devices do not have a cooling requirement, and at this time, in order to cool the in-vehicle devices having a cooling requirement, the cooling system needs to be operated, but the cooling system simultaneously provides cooling for the in-vehicle devices not having a cooling requirement, and the cooling system is unnecessary to provide cooling for the in-vehicle devices not having a cooling requirement, which causes unnecessary energy consumption and a reduction in the operating life of the cooling system.
Disclosure of Invention
The invention aims to provide a control method, a computer device and a storage medium of an automobile cooling system, aiming at solving the technical problems that unnecessary energy consumption is easy to generate, the service life of the cooling system is reduced and the like in the prior art that a plurality of vehicle-mounted devices share one cooling system.
In one aspect, an embodiment of the present invention includes a method for controlling a cooling system of an automobile, including:
determining a first vehicle-mounted device among a plurality of vehicle-mounted devices connected to an automobile cooling system; the first vehicle-mounted equipment is vehicle-mounted equipment with heat dissipation requirements at present;
determining an operation time length according to the working parameters of the first vehicle-mounted equipment;
and controlling the intermittent operation of the automobile cooling system according to the operation time.
Further, among the plurality of vehicle-mounted devices connected to the vehicle cooling system, the determining the first vehicle-mounted device includes:
detecting the working temperature of each vehicle-mounted device;
and when the working temperature of any vehicle-mounted device reaches a corresponding temperature threshold value of the vehicle-mounted device, determining the vehicle-mounted device as the first vehicle-mounted device.
Further, the determining the operation duration according to the working parameters of the first vehicle-mounted device includes:
acquiring an efficiency curve graph and a pressure flow graph of a cooling system;
inquiring to obtain the first pipeline cooling liquid amount according to the efficiency curve graph; the first pipeline cooling liquid amount is the pipeline cooling liquid amount with highest efficiency corresponding to the working parameters of the first vehicle-mounted equipment;
inquiring to obtain the flow of the first water pump according to the pressure flow diagram; the first water pump flow is the water pump flow with the highest efficiency corresponding to the working parameters of the first vehicle-mounted equipment;
and determining the operation duration according to the first pipeline cooling liquid amount and the first water pump flow.
Further, the determining the operation duration according to the first pipeline cooling liquid amount and the first water pump flow includes:
according to the formula
And executing calculation and determining the running time.
Further, the controlling the intermittent operation of the automobile cooling system according to the operation duration includes:
determining a pause time;
controlling the automobile cooling system to alternately run and pause; the running duration of the automobile cooling system in each period is the running duration, and the running duration of the automobile cooling system in each period is the pause duration.
Further, the determining the pause duration includes:
setting a working period; the working period is a fixed duration;
and determining the pause time according to the difference value between the working period and the running time.
Further, the determining the pause duration includes:
determining a second vehicle-mounted device among a plurality of vehicle-mounted devices connected to the vehicle cooling system; the second vehicle-mounted device is vehicle-mounted device which does not have heat dissipation requirements at present;
inquiring to obtain the second pipeline cooling liquid amount according to the efficiency curve graph; the second pipeline cooling liquid amount is the pipeline cooling liquid amount with the lowest efficiency corresponding to the working parameters of the second vehicle-mounted equipment;
inquiring to obtain second water pump flow according to the pressure flow diagram; the second water pump flow is the water pump flow with the lowest efficiency corresponding to the working parameters of the second vehicle-mounted equipment;
and determining the suspension duration according to the second pipeline cooling liquid amount and the second water pump flow.
Further, the determining the suspension duration according to the second pipeline cooling liquid amount and the second water pump flow includes:
according to the formula
Or alternatively
Performing calculation and determining the pause duration; wherein the second pipeline cooling liquid amount i Representing the cooling liquid amount of the second pipeline corresponding to the ith second vehicle-mounted equipment, and the flow rate of a second water pump i And the second water pump flow corresponding to the ith second vehicle-mounted device is represented, and n represents the total number of the second vehicle-mounted devices.
In another aspect, an embodiment of the present invention further includes a computer apparatus including a memory for storing at least one program and a processor for loading the at least one program to perform a control method of an automotive cooling system in the embodiment.
In another aspect, embodiments of the present invention also include a storage medium having stored therein a processor-executable program that, when executed by a processor, is for performing a method of controlling a cooling system of an automobile in the embodiments.
The beneficial effects of the invention are as follows: according to the control method of the automobile cooling system, the automobile cooling system can only run for the time equivalent to the running time in one working period, so that the cooling requirement of the automobile equipment needing cooling can be met with high efficiency under the condition that only part of the automobile equipment is the automobile equipment needing cooling (first automobile equipment), and the actual running time of the automobile cooling system can be reduced when the automobile cooling system intermittently runs, and therefore the energy consumption of the running of the automobile cooling system is reduced, and the service life loss of the cooling system is reduced.
Drawings
FIG. 1 is a schematic diagram of an automotive cooling system to which a control method of the automotive cooling system may be applied in an embodiment;
FIG. 2 is a step diagram of a control method of an automotive cooling system according to an embodiment;
FIG. 3 is a schematic diagram of an efficiency graph in an embodiment;
FIG. 4 is a schematic diagram of a pressure flow diagram in an embodiment;
fig. 5 is a schematic diagram of the running duration and the pause duration in the embodiment.
Detailed Description
In this embodiment, referring to fig. 1, the vehicle cooling system provides cooling for a plurality of in-vehicle devices through the same cooling circuit, that is, a plurality of in-vehicle devices on the vehicle share one cooling circuit. The cooling system comprises a cooling loop, a water pump, a radiator and cooling liquid, wherein the cooling loop is connected with vehicle-mounted equipment (or the radiator arranged on the vehicle-mounted equipment) such as a main drive motor, an MCU (micro control unit), a DC-DC (direct current-direct current) conversion circuit and the like, so that heat generated by the operation of the vehicle-mounted equipment is transferred to the cooling liquid in the cooling loop. When the automobile cooling system operates, the water pump works to drive the cooling liquid to flow in the cooling loop, so that the cooling liquid transfers heat absorbed from the vehicle-mounted equipment to the radiator, and the radiator radiates the heat in a passive air cooling mode or an active air cooling mode to cool the vehicle-mounted equipment.
In some related art, the water pump has only two gears for stopping and full-speed operation, and when only part of the vehicle-mounted equipment has cooling requirements, the cooling system is operated to control the water pump to run at full speed, thereby causing unnecessary energy consumption.
In this embodiment, referring to fig. 2, the control method of the automobile cooling system includes the steps of:
s1, determining a first vehicle-mounted device in a plurality of vehicle-mounted devices connected with an automobile cooling system;
s2, determining the operation time length according to the working parameters of the first vehicle-mounted equipment;
s3, controlling the intermittent operation of the automobile cooling system according to the operation time.
Steps S1-S3 may be performed by a microprocessor on board the vehicle.
Step S1 is a step of identifying an in-vehicle apparatus that has a cooling demand from among a plurality of in-vehicle apparatuses connected to an automobile cooling system. Specifically, in performing step S1, the following steps may be performed:
s101, detecting the working temperature of each vehicle-mounted device;
s102, when the working temperature of any vehicle-mounted device reaches a corresponding temperature threshold value of the vehicle-mounted device, determining the vehicle-mounted device as the first vehicle-mounted device.
In step S101, the operating temperature of each in-vehicle device is measured by a temperature sensor common to each in-vehicle device or a temperature sensor independently provided to each in-vehicle device. In step S102, the operating temperatures of the respective vehicle-mounted devices are compared with the corresponding temperature thresholds, respectively. For example, the working temperature measured by the main driving motor is compared with a temperature threshold corresponding to the main driving motor, if the working temperature of the main driving motor is higher than the temperature threshold corresponding to the main driving motor, the main driving motor is a vehicle-mounted device with a cooling requirement, namely a first vehicle-mounted device, and otherwise, the main driving motor is a vehicle-mounted device without the cooling requirement, namely a second vehicle-mounted device.
Similarly, comparing the working temperature measured by the MCU with a temperature threshold corresponding to the MCU, if the working temperature of the MCU is higher than the temperature threshold corresponding to the MCU, the MCU is a first vehicle-mounted device, otherwise, the MCU is a vehicle-mounted device without cooling requirement, namely a second vehicle-mounted device; comparing the working temperature measured by the DC-DC conversion circuit with a temperature threshold corresponding to the DC-DC conversion circuit, if the working temperature of the DC-DC conversion circuit is higher than the temperature threshold corresponding to the DC-DC conversion circuit, the DC-DC conversion circuit is a first vehicle-mounted device, otherwise, the DC-DC conversion circuit is a vehicle-mounted device without cooling requirement, namely a second vehicle-mounted device.
In this embodiment, when executing step S1, it may also be determined whether an in-vehicle device belongs to the first in-vehicle device or the second in-vehicle device according to a parameter other than temperature. For example, for the vehicle-mounted device of the main driving motor, the wheel rotation speed of the automobile can be detected, when the wheel rotation speed is lower than the speed threshold value, the automobile can be judged to be in a static state, namely, the main driving motor is judged to be in a non-working state, and the main driving motor does not generate heat, so that the main driving motor is judged to be the vehicle-mounted device without cooling requirement, namely, the second vehicle-mounted device.
Since only a small amount of first vehicle-mounted devices exist in the plurality of vehicle-mounted devices, and the waste caused by full-speed operation of the vehicle cooling system (the water pump therein) is obvious when the other vehicle-mounted devices are all second vehicle-mounted devices, the situation belongs to a typical application scenario of steps S1-S3, and therefore in this embodiment, the vehicle-mounted devices include a main driving motor, an MCU and a DC-DC conversion circuit, wherein only the DC-DC conversion circuit belongs to the first vehicle-mounted devices (the vehicle-mounted devices with cooling requirements), and the main driving motor and the MCU both belong to the second vehicle-mounted devices (the vehicle-mounted devices without cooling requirements), respectively, the steps in the control method of the vehicle cooling system are described.
In this embodiment, when step S2 is performed, that is, the step of determining the operation duration according to the operation parameters of the first vehicle device, the following steps may be specifically performed:
s201, obtaining an efficiency curve chart and a pressure flow chart of a cooling system;
s202, inquiring to obtain the first pipeline cooling liquid amount according to the efficiency curve graph;
s203, inquiring to obtain the flow of the first water pump according to the pressure flow diagram;
s204, determining the operation time length according to the first pipeline cooling liquid amount and the first water pump flow.
In step S201, the obtained efficiency graph of the cooling system is shown in fig. 3, and the obtained pressure flow rate graph of the cooling system is shown in fig. 4.
Referring to fig. 3, an efficiency graph shows a correspondence relationship between an operation efficiency of a cooling system (a water pump therein) and a flow rate of a cooling liquid, wherein a vertical axis shows the operation efficiency of the water pump and a horizontal axis shows the flow rate of the cooling liquid. Referring to fig. 4, a pressure flow rate map shows a correspondence relationship between the pressure of the cooling system (the water pump therein) and the flow rate of the cooling liquid, wherein the vertical axis shows the pressure of the water pump and the horizontal axis shows the flow rate of the cooling liquid. The curves in fig. 3 and 4 correspond to different operating parameters of the first vehicle device, i.e. a curve can be determined in fig. 3 and 4, respectively, from a set of determined operating parameters of the first vehicle device, such that the correspondence between the operating efficiency of the water pump and the flow rate of the cooling liquid is determined from the curve in fig. 3, and the correspondence between the pressure of the water pump and the flow rate of the cooling liquid is determined from the curve in fig. 4.
In step S202, referring to fig. 3, each curve in the efficiency graph has an efficiency maximum. In the case of determining a curve in fig. 3, the most efficient point can be determined on the curve, and thus the corresponding line cooling liquid amount (i.e., the corresponding horizontal axis coordinate) can be determined, and the corresponding line cooling liquid amount can be determined as the first line cooling liquid amount.
In step S203, referring to fig. 4, each curve in the pressure flow graph has an efficiency maximum. In the case of determining a curve in fig. 4, the most efficient point can be determined on the curve, so that the water pump flow rate corresponding to this point (i.e., the corresponding horizontal axis coordinate) is determined, and the line cooling liquid amount corresponding to this point is determined as the first water pump flow rate.
In step S204, according to the formula
And performing calculation to obtain the operation time length.
In this embodiment, the principle of performing steps S201 to S204 is that: executing the first pipeline cooling liquid amount obtained in step S202 can represent the pipeline cooling liquid amount when the highest efficiency is obtained (i.e. the quantity of cooling liquid required to be conveyed in the cooling circuit for cooling the first vehicle-mounted device) under the condition that the determined first vehicle-mounted device needs to be cooled by the operation of the vehicle cooling system; the first water pump flow obtained in step S203 is executed, which can represent the water pump flow (i.e. the amount of coolant pumped by the water pump in a unit time) when the highest efficiency is obtained in the case that the determined first vehicle device needs to be cooled by the operation of the vehicle cooling system; by the formula in step S204, the time required for the water pump to pump the first pipeline cooling liquid amount at the first water pump flow rate in one working cycle can be calculated, so that the working efficiency of the vehicle cooling system (the water pump therein) can be made equal to or close to the highest efficiency by controlling the vehicle cooling system with the operation time obtained by executing steps S201-S204.
In this embodiment, when step S3 is performed, that is, when the step of controlling the intermittent operation of the cooling system of the automobile according to the operation duration, the following steps may be specifically performed:
s301, determining a pause time;
s302, controlling an automobile cooling system to alternately run and pause; the running duration of the automobile cooling system in each period is the running duration, and the running duration of the automobile cooling system in each period is the pause duration.
In step S302, the operation duration obtained in steps S201 to S204 is executed as an accumulated duration for which the vehicle cooling system (the water pump therein) is operated continuously in each cycle, and the suspension duration set in step S301 is executed as an accumulated duration for which the vehicle cooling system (the water pump therein) is suspended continuously in each cycle. For example, referring to FIG. 5, the front portion of a duty cycle may be divided into run lengths and the remaining portion divided into pause lengths; in a working period, the running time and the pause time are not required to be continuous, and the running time and the pause time are only required to be reached by the accumulated time of running the automobile cooling system (a water pump therein) in the working period.
In this embodiment, by executing steps S1 to S3, the vehicle cooling system can only be operated for a time equivalent to the operation duration in one working cycle, so that the cooling requirement of the vehicle-mounted device to be cooled is met with higher efficiency when only a part of the vehicle-mounted devices are the vehicle-mounted devices (first vehicle-mounted devices) to be cooled, and the actual operation duration of the vehicle cooling system can be reduced when the vehicle cooling system is intermittently operated, thereby reducing the energy consumption of the operation of the vehicle cooling system and the service life loss of the cooling system.
In this embodiment, when step S301, that is, the step of determining the suspension period is performed, the following steps may be specifically performed:
S30101A, setting a working period;
S30102A, determining a pause time according to the difference between the working period and the running time.
Steps S30101A to S30102A are the first implementation of step S301.
In step S30101A, a duty cycle of a fixed duration is set, then step S30102A is executed, the duty cycle is subtracted from the running duration obtained by executing step S2, and the obtained difference is the pause duration.
By executing steps S30101A to S30102A, the suspension period can be set with simple operation. The sum of the running time and the pause time, namely the working period is a fixed value, namely the starting and stopping periods of the automobile cooling system are all of fixed time, so that convenience is brought to other control processes of the automobile cooling system.
In this embodiment, when step S301, that is, the step of determining the suspension period is performed, the following steps may be specifically performed:
S30101B, determining a second vehicle-mounted device in a plurality of vehicle-mounted devices connected with an automobile cooling system; the second vehicle-mounted device is vehicle-mounted device which does not have heat dissipation requirement at present;
S30102B, inquiring to obtain the second pipeline cooling liquid amount according to the efficiency curve graph;
S30103B, inquiring to obtain second water pump flow according to the pressure flow diagram;
S30104B, determining the suspension time according to the second pipeline cooling liquid amount and the second water pump flow.
Steps S30101B-S30104B are the second implementation of step S301.
In step S30101B, after the first vehicle-mounted device of the plurality of vehicle-mounted devices is determined in step S1, the second vehicle-mounted device is naturally determined.
In performing step S30102B, and referring to the principle of step S202, in fig. 3, each curve in the efficiency graph has an efficiency minimum. In the case of determining a curve in fig. 3, the point of lowest efficiency can be determined on the curve, and thus the amount of the line cooling liquid corresponding to this point (i.e., the corresponding horizontal axis coordinate) can be determined, and the amount of the line cooling liquid corresponding to this point can be determined as the second line cooling liquid amount.
In step S30103B, referring to the principle of step S203, in fig. 4, each curve in the pressure-flow diagram has an efficiency minimum. In the case of determining a curve in fig. 4, the point of lowest efficiency can be determined on the curve, so that the water pump flow rate corresponding to this point (i.e., the corresponding horizontal axis coordinate) can be determined, and the line cooling liquid amount corresponding to this point can be determined as the second water pump flow rate.
When step S30104B is performed, referring to the principle of step S204, the formula can be used as follows
A calculation is performed to obtain a pause duration.
In this embodiment, the principle of performing steps S30101B-S30104B is that: the second line cooling liquid amount obtained in step S30102B can represent the line cooling liquid amount when the vehicle cooling system obtains the lowest efficiency (i.e., the amount of cooling liquid that needs to be transported in the cooling circuit for cooling the second vehicle device) assuming that the determined second vehicle device is to be cooled; the second water pump flow rate obtained by executing step S30103B can represent the water pump flow rate (i.e., the amount of coolant pumped by the water pump per unit time) at which the vehicle cooling system attains the lowest efficiency assuming that the determined second vehicle-mounted device is to be cooled; the time required by the water pump to pump the second pipeline cooling liquid amount at the second water pump flow rate in one working cycle can be calculated through the formula in the step S30104B, so it is assumed that the automobile cooling system (the water pump therein) is controlled to cool the second vehicle-mounted device according to the same time length of the suspension time length obtained by executing the step S30104B, and the automobile cooling system reaches or approaches to the lowest working efficiency; accordingly, when the steps S1-S3 are actually executed, the vehicle cooling system (the water pump therein) does not cool any vehicle-mounted device within the suspension period obtained in the execution step S30104B, so that the vehicle cooling system can be prevented from having low working efficiency, and is maintained in a suspension state for a long enough time, so that the effects of reducing the energy consumption of the operation of the vehicle cooling system and reducing the service life loss of the cooling system achieved by the control method of the vehicle cooling system in the embodiment are more obvious.
The above formulaOnly the case of a single second vehicle device is considered. In the case where there are a plurality of second in-vehicle devices, the formula for calculating the suspension period in step S30104B may be modified to +.> Or->
Formula (VI)The calculated suspension period corresponds to the sum of suspension periods obtained by respectively executing steps S30101B-S30104B for each of the second vehicle-mounted devices. When the suspension time calculated by the formula is suspended by controlling the automobile cooling system, the low working efficiency faced by 'presuming to cool each second vehicle-mounted device' can be respectively avoided under the condition that a plurality of second vehicle-mounted devices exist, so that the working efficiency improving effect of the control method of the automobile cooling system in the embodiment is more obvious.
Formula (VI)Calculated and obtainedThe suspension period is equivalent to the maximum value of the suspension periods obtained by executing the steps S30101B-S30104B, respectively, for the respective second vehicle-mounted devices, and the suspension period ratio formula>The calculated pause time period. When the automobile cooling system is controlled to pause in the pause time calculated by the formula, the pause time can be reduced, so that the overlong working period of the automobile cooling system is avoided, and convenience is brought to links such as control programming of the automobile cooling system.
The same technical effects as those of the control method of the vehicle cooling system in the embodiment can be achieved by writing a computer program that performs the control method of the vehicle cooling system in the embodiment into a computer device or a storage medium, and when the computer program is read out to run, executing the control method of the vehicle cooling system in the embodiment.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in this disclosure are merely with respect to the mutual positional relationship of the various components of this disclosure in the drawings. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this embodiment includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be appreciated that embodiments of the invention may be implemented or realized by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer readable storage medium configured with a computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, in accordance with the methods and drawings described in the specific embodiments. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Furthermore, the operations of the processes described in the present embodiments may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes (or variations and/or combinations thereof) described in this embodiment may be performed under control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications), by hardware, or combinations thereof, that collectively execute on one or more processors. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable computing platform, including, but not limited to, a personal computer, mini-computer, mainframe, workstation, network or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and so forth. Aspects of the invention may be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and/or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, which when read by a computer, is operable to configure and operate the computer to perform the processes described herein. Further, the machine readable code, or portions thereof, may be transmitted over a wired or wireless network. When such media includes instructions or programs that, in conjunction with a microprocessor or other data processor, implement the steps described above, the invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media. The invention also includes the computer itself when programmed according to the methods and techniques of the present invention.
The computer program can be applied to the input data to perform the functions described in this embodiment, thereby converting the input data to generate output data that is stored to the non-volatile memory. The output information may also be applied to one or more output devices such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including specific visual depictions of physical and tangible objects produced on a display.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.
Claims (10)
1. A control method of an automotive cooling system for providing cooling to a plurality of in-vehicle devices through a same cooling circuit, characterized by comprising:
determining a first vehicle-mounted device among a plurality of vehicle-mounted devices connected to an automobile cooling system; the first vehicle-mounted equipment is vehicle-mounted equipment with heat dissipation requirements at present;
determining an operation time length according to the working parameters of the first vehicle-mounted equipment;
and controlling the intermittent operation of the automobile cooling system according to the operation time.
2. The control method of an automotive cooling system according to claim 1, characterized in that the determining a first onboard device among a plurality of onboard devices to which the automotive cooling system is connected includes:
detecting the working temperature of each vehicle-mounted device;
and when the working temperature of any vehicle-mounted device reaches a corresponding temperature threshold value of the vehicle-mounted device, determining the vehicle-mounted device as the first vehicle-mounted device.
3. The method for controlling a cooling system of an automobile according to claim 1, wherein the determining an operation time period according to the operation parameter of the first on-vehicle device includes:
acquiring an efficiency curve graph and a pressure flow graph of a cooling system;
inquiring to obtain the first pipeline cooling liquid amount according to the efficiency curve graph; the first pipeline cooling liquid amount is the pipeline cooling liquid amount with highest efficiency corresponding to the working parameters of the first vehicle-mounted equipment;
inquiring to obtain the flow of the first water pump according to the pressure flow diagram; the first water pump flow is the water pump flow with the highest efficiency corresponding to the working parameters of the first vehicle-mounted equipment;
and determining the operation duration according to the first pipeline cooling liquid amount and the first water pump flow.
4. The control method of the vehicle cooling system according to claim 3, wherein the determining the operation period based on the first line cooling liquid amount and the first water pump flow rate includes:
according to the formula
And executing calculation and determining the running time.
5. The control method of an automotive cooling system according to claim 1, characterized in that the controlling the intermittent operation of the automotive cooling system according to the operation duration includes:
determining a pause time;
controlling the automobile cooling system to alternately run and pause; the running duration of the automobile cooling system in each period is the running duration, and the running duration of the automobile cooling system in each period is the pause duration.
6. The method of controlling an automotive cooling system according to claim 5, characterized in that the determining a suspension period includes:
setting a working period; the working period is a fixed duration;
and determining the pause time according to the difference value between the working period and the running time.
7. The method of controlling an automotive cooling system according to claim 5, characterized in that the determining a suspension period includes:
determining a second vehicle-mounted device among a plurality of vehicle-mounted devices connected to the vehicle cooling system; the second vehicle-mounted device is vehicle-mounted device which does not have heat dissipation requirements at present;
inquiring to obtain the second pipeline cooling liquid amount according to the efficiency curve graph; the second pipeline cooling liquid amount is the pipeline cooling liquid amount with the lowest efficiency corresponding to the working parameters of the second vehicle-mounted equipment;
inquiring to obtain second water pump flow according to the pressure flow diagram; the second water pump flow is the water pump flow with the lowest efficiency corresponding to the working parameters of the second vehicle-mounted equipment;
and determining the suspension duration according to the second pipeline cooling liquid amount and the second water pump flow.
8. The method of controlling an automotive cooling system according to claim 7, wherein the determining the suspension period based on the second line cooling liquid amount and the second water pump flow rate includes:
according to the formula
Or alternatively
Performing calculation and determining the pause duration; wherein the second pipeline cooling liquid amount i Representing the cooling liquid amount of the second pipeline corresponding to the ith second vehicle-mounted equipment, and the flow rate of a second water pump i And the second water pump flow corresponding to the ith second vehicle-mounted device is represented, and n represents the total number of the second vehicle-mounted devices.
9. A computer device comprising a memory for storing at least one program and a processor for loading the at least one program to perform the method of controlling the cooling system of a vehicle according to any one of claims 1-8.
10. A computer-readable storage medium in which a processor-executable program is stored, characterized in that the processor-executable program, when executed by a processor, is for performing the control method of the vehicle cooling system according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310667484.4A CN116749752A (en) | 2023-06-06 | 2023-06-06 | Control method, device and storage medium for automobile cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310667484.4A CN116749752A (en) | 2023-06-06 | 2023-06-06 | Control method, device and storage medium for automobile cooling system |
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| CN116749752A true CN116749752A (en) | 2023-09-15 |
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| CN202310667484.4A Pending CN116749752A (en) | 2023-06-06 | 2023-06-06 | Control method, device and storage medium for automobile cooling system |
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| Country | Link |
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| CN (1) | CN116749752A (en) |
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2023
- 2023-06-06 CN CN202310667484.4A patent/CN116749752A/en active Pending
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