CN113078387A - Battery coolant temperature control method, apparatus, controller, system, and medium - Google Patents
Battery coolant temperature control method, apparatus, controller, system, and medium Download PDFInfo
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- CN113078387A CN113078387A CN202010011155.0A CN202010011155A CN113078387A CN 113078387 A CN113078387 A CN 113078387A CN 202010011155 A CN202010011155 A CN 202010011155A CN 113078387 A CN113078387 A CN 113078387A
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- 239000002826 coolant Substances 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 258
- 239000000110 cooling liquid Substances 0.000 claims description 119
- 238000004590 computer program Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 abstract description 12
- 238000007599 discharging Methods 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a battery coolant temperature control method, a device, a controller, a system and a medium, wherein a heater is controlled to heat battery coolant at the maximum available heating gear, heating is suspended when the battery coolant is heated to the upper limit value of a preset temperature interval, when the temperature of the battery coolant is reduced to the lower limit value of the preset temperature interval, gear shifting heating is carried out to the upper limit value, a balance gear is determined in the process, so that the temperature of the subsequent battery coolant is reduced to the lower limit value again, the heater is controlled to heat at the balance gear, the temperature of the battery coolant is in the preset temperature interval, the temperature of a power battery is raised through heat exchange with the battery coolant, the temperature of the power battery is effectively raised in a low-temperature environment, current impact caused by frequent gear shifting for raising the temperature in the low-temperature environment is reduced, and the risk of over-discharging of the power battery is reduced, the service life of the power battery is prolonged, meanwhile, the cost is reduced, and the user experience is increased.
Description
Technical Field
The invention relates to the technical field of batteries of electric vehicles, in particular to a battery coolant temperature control method, a battery coolant temperature control device, a controller, a control system and a computer-readable storage medium.
Background
In recent years, the production and marketing of electric automobiles are rapidly increased, and the power battery is used as a power source of the electric automobiles, and the effect of the power battery on the electric automobiles is equivalent to the heart of the power automobiles, so the performance of the power battery directly influences the overall performance of the electric automobiles. However, the chemical reaction activity of the power battery is limited in a low-temperature environment, so that the discharge capacity of the power battery is greatly limited, the power performance and the use cost of the whole vehicle are affected, and the service life of the battery is also greatly affected by using the battery at a low temperature. Therefore, the power battery needs to be heated at a low temperature, which is of great significance for improving the service life of the power battery, the driving range of the whole vehicle and the running safety.
Among the prior art, the outside heating device that can all adopt under the microthermal environment of power battery in most cases heats the battery, adopts the different heating gear of different coolant temperature correspondences, and the heating gear is with coolant temperature one-to-one, and coolant temperature low corresponds high gear, and coolant temperature high corresponds low gear. In order to maintain the requirement of the cooling liquid at a certain temperature, the heating gear of the heater needs to be adjusted in real time in the control process of the heater, the heating request gear is easy to bounce, the heater is realized by controlling an insulated gate bipolar transistor (IGBT for short) in the process of shifting gears every time, so that the high current impact can be caused in the process of shifting gears every time, in addition, the discharging capacity of the battery under the low-temperature environment is very weak, the danger of over-discharging of the battery is easy to cause, and the service life of the battery is shortened.
Disclosure of Invention
The invention provides a power battery heating method and system, and aims to solve the problem that the service life of a battery is shortened due to over-discharge of the battery caused by frequent gear shifting for heating the battery in a low-temperature environment.
A battery coolant temperature control method comprising:
receiving a heating instruction;
controlling a heater to heat the battery cooling liquid at the maximum available heating gear according to the heating instruction;
when the temperature of the battery cooling liquid is detected to rise to the upper limit value of a preset temperature interval, controlling the heater to pause heating the battery cooling liquid;
when the temperature of the battery cooling liquid is detected to be reduced to a lower limit value of the preset temperature range, controlling the heater to perform gear shifting heating on the battery cooling liquid so that the temperature of the battery cooling liquid is increased to the upper limit value, and determining a balance gear in the gear shifting heating process, wherein the balance gear is a heating gear which enables the temperature of the battery cooling liquid to be within the preset temperature range by the heater;
and when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, controlling the heater to heat the battery cooling liquid at the balance gear.
Further, the maximum available heating gear is determined according to the maximum discharge power reported by the power battery.
Further, the heater comprises a plurality of heating gears, each heating gear corresponds to different consumed power, and the maximum available heating gear is determined by the following method:
determining the maximum discharge power reported by the power battery;
and if the maximum discharge power reported by the power battery is greater than or equal to the consumed power corresponding to the maximum heating gear of the heater, taking the maximum heating gear of the heater as the maximum available heating gear.
Further, the controlling the heater to shift the battery coolant to heat the battery coolant so that the coolant temperature rises to the upper limit value, and determining a balance gear during the shift heating includes:
a. controlling a next-stage heating gear of a previous-stage heating gear of the heater to heat the battery cooling liquid, wherein the previous-stage heating gear is a heating gear used by the heater for heating last time;
b. if the temperature of the battery cooling liquid is detected to be incapable of being heated to be greater than or equal to the lower limit value after the preset time, heating the battery cooling liquid by using the upper-stage heating gear, and determining the upper-stage heating gear as the balance gear;
c. and if the temperature of the battery cooling liquid is detected to be heated to the upper limit value after the preset time, controlling the heater to pause heating of the battery cooling liquid, and repeatedly executing the steps a-c when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again until the balance gear is determined.
Further, after the controlling the heater to heat the battery coolant at the balance gear, the method includes:
and when the temperature of the power battery reaches a preset temperature value, controlling the heater to stop heating the battery cooling liquid.
Further, the method further comprises:
and when the temperature signal of the power battery and/or the battery cooling liquid is not detected and the heater is in a heating gear, controlling the heater to stop heating.
A battery coolant temperature control apparatus comprising:
the receiving module is used for receiving a heating instruction;
the processing module is used for controlling the heater to heat the battery cooling liquid at the maximum available heating gear when the receiving module receives the heating instruction;
when the temperature of the battery cooling liquid is detected to rise to the upper limit value of a preset temperature interval, controlling the heater to pause heating the battery cooling liquid;
when the temperature of the battery cooling liquid is detected to be reduced to a lower limit value of the preset temperature range, controlling the heater to perform gear shifting heating on the battery cooling liquid so that the temperature of the battery cooling liquid is increased to the upper limit value, and determining a balance gear in the gear shifting heating process, wherein the balance gear is a heating gear which enables the temperature of the battery cooling liquid to be within the preset temperature range by the heater;
and when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, controlling the heater to heat the battery cooling liquid at the balance gear.
A battery coolant temperature controller comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the battery coolant temperature control method described above when executing the computer program.
A computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the above-described battery coolant temperature control method.
A battery coolant temperature control system comprises a heater and a battery coolant temperature controller, wherein the heater is connected with the battery coolant temperature controller.
In one of the schemes implemented by the above battery coolant temperature control method, device, controller, system and medium, the heating instruction is received, the heater is controlled to heat the battery coolant at the maximum available heating gear according to the heating instruction, when the temperature of the battery coolant is detected to rise to the upper limit value of the preset temperature interval, heating is suspended, when the temperature of the battery coolant is detected to fall to the lower limit value of the preset temperature interval, the battery coolant is subjected to shift heating to raise the temperature of the coolant to the upper limit value, a balance gear is determined in the shift heating process, when the temperature of the battery coolant is detected to fall to the lower limit value again, the heater is controlled to heat the battery coolant at the balance gear to make the temperature of the battery coolant within the preset temperature interval, so that the power battery raises the temperature thereof through heat exchange with the battery coolant, the temperature of the power battery is effectively increased in the low-temperature environment, current impact on the power battery caused by frequent gear shifting for increasing the temperature in the low-temperature environment is reduced, the risk of over-discharging of the power battery is reduced, the service life of the power battery is prolonged, and meanwhile the cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a battery coolant temperature control system according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a method for controlling a temperature of a battery coolant according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart diagram of a maximum available heating range determination method in accordance with an embodiment of the present invention;
fig. 4 is a flowchart illustrating a step S40 of a battery coolant temperature control method according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a battery coolant temperature control apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The battery coolant temperature control method provided by the embodiment of the invention can be applied to a battery coolant temperature control system shown in fig. 1, wherein the battery coolant temperature control system is applied to a vehicle and is used for controlling the coolant temperature of a power battery in the vehicle, the battery coolant temperature control system comprises a heater 101 and a battery coolant temperature controller 102, the heater 101 is connected with the battery coolant temperature controller 102, and the heater 101 is in contact with the power battery of the vehicle through the battery coolant.
The battery coolant temperature controller can also communicate with an external device through a network, the external device can be but not limited to various personal computers, notebook computers, smart phones, tablet personal computer portable wearable devices or central control devices on vehicles, and the battery coolant temperature controller can receive related control instructions triggered by users through the external device.
In an embodiment, as shown in fig. 2, a method for controlling the temperature of battery coolant is provided, which is described by taking the above-mentioned system for controlling the temperature of battery coolant as an example, and includes the following steps:
s10: a heating instruction is received.
In a low-temperature environment, the chemical reaction activity of the power battery is limited in the low-temperature environment, so that the discharge capacity of the power battery is greatly limited, and the power performance of the whole vehicle is affected, and therefore, the temperature of the power battery needs to be raised. In this embodiment, the temperature of the power battery is raised by heating the battery coolant.
After receiving the heating instruction, the battery coolant temperature controller controls the heater to enter a heating flow controlled by the battery coolant temperature control method. The heating instruction may be automatically generated after being triggered by a certain condition, or may be manually transmitted. For example, when the power battery cooling liquid is detected to be reduced to a certain temperature value, an Electronic Control Unit (ECU) sends a heating instruction to a battery cooling liquid temperature controller through a LIN bus; or when in a low temperature condition, the vehicle user sends a heating instruction to the battery coolant temperature controller through an external device.
S20: and controlling the heater to heat the battery cooling liquid at the maximum available heating gear according to the heating instruction.
After receiving the heating instruction, the battery coolant temperature controller generates a heating request for heating in the maximum available heating gear according to the heating instruction and sends the heating request to the heater through the LIN bus, and after receiving the heating request for heating in the maximum available heating gear, the heater enters a heating process and heats the battery coolant in the maximum available heating gear. For example, the maximum available heating gear is heating gear 6 of the heater, and after receiving a heating request sent by the battery coolant temperature controller, the heater enters a heating process and heats the battery coolant by 6 gears to increase the temperature of the battery coolant, so that the temperature of the power battery is increased through heat exchange between the battery coolant and the power battery, and the discharge capacity of the power battery is improved.
The heater in the embodiment of the invention can be a common PTC heater, and can also be other types of heaters, which are not described herein again.
S30: and when the temperature of the battery cooling liquid is detected to rise to the upper limit value of the preset temperature interval, controlling the heater to suspend heating the battery cooling liquid.
When the battery coolant temperature controller detects that the temperature of the battery coolant rises to the upper limit of the preset temperature interval, the battery coolant temperature controller sends a heating pause request to the heater through the LIN bus, and after the heater receives the heating pause request, the heater pauses heating of the battery coolant. For example, the preset temperature interval is 45 ℃ to 50 ℃, the lower limit value of the preset temperature interval is 45 ℃ and the upper limit value of the preset temperature interval is 50 ℃, when the battery coolant temperature controller detects that the temperature of the battery coolant rises to 50 ℃, the battery coolant temperature controller sends a heating pause request to the heater through the LIN bus, and after the heater receives the heating pause request, the heater pauses the heating of the battery coolant.
In this embodiment, the preset temperature interval is an optimal interval of the power battery, the discharge capacity of the power battery is optimal in the preset temperature interval, different power batteries have different preset temperature intervals, and the preset temperature intervals are determined according to parameters of the corresponding power batteries. In other embodiments, the preset temperature interval may also be other temperature intervals, which are not described herein again.
S40: when the temperature of detecting battery coolant liquid drops to the lower limit value within a preset temperature interval, the control heater shifts the battery coolant liquid and heats the battery coolant liquid so that the temperature of the battery coolant liquid rises to the upper limit value, and a balance gear is determined in the shifting and heating process, and the balance gear is a heating gear of which the heater can enable the temperature of the battery coolant liquid within the preset temperature interval.
Because the power that 6 grades of consumptions of the biggest available heating gear is the biggest, heat battery coolant liquid with 6 grades, can make the temperature of battery coolant liquid break through and predetermine the temperature interval, so in order to avoid high gear to cause the wasting of power consumption and frequent gear shift, wait battery coolant liquid temperature to fall to 45 ℃ after, need carry out the gear shift heating to battery coolant liquid, in order to find one and can maintain battery coolant liquid temperature and consume the minimum balanced gear of power.
After the battery coolant temperature controller controls the heater to suspend heating of the battery coolant, when the temperature of the battery coolant is detected to be reduced to the lower limit value of the preset temperature interval, the battery coolant temperature controller sends a gear shifting heating request to the heater through the LIN bus, and after the heater receives the gear shifting heating request, the heater heats the battery coolant through corresponding heating gears according to the heating request, so that the temperature of the battery coolant is maintained in the preset temperature interval and is increased to the upper limit value. Simultaneously, still need determine balanced gear in the heating process of shifting gears, balanced gear is the heater and enables the temperature of battery coolant liquid and in presetting the temperature interval and consume the heating gear that the power is the lowest.
For example, after the battery coolant is heated to 50 ℃ in the maximum available heating gear 6, and the battery coolant temperature is decreased to 45 ℃, the battery coolant temperature controller sends a first-gear-down heating request to the heater through the LIN bus, and after the heater receives the first-gear-down heating request, the battery coolant is heated in 5 gears according to the first-gear-down heating request, so that the battery coolant temperature is maintained within 45 ℃ to 50 ℃ and is increased to 50 ℃. And then, when the temperature of the battery cooling liquid is reduced to 45 ℃, the battery cooling liquid temperature controller sends a first-gear reduction heating request to the heater again through the LIN bus, so that the heater heats the battery cooling liquid in 4 gears. Meanwhile, in the gear shifting heating process, 4 gears in the heating gears of the heater can maintain the temperature of the battery cooling liquid within 45-50 ℃, and the consumed power is less than 5 gears and 6 gears, so that the balance gear is 4 gears of the heating gears of the heater.
S50: and when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, controlling the heater to heat the battery cooling liquid in a balance gear.
When the battery cooling liquid is detected to be put in the temperature and is reduced to the lower limit value again, the battery cooling liquid temperature controller sends a heating request for heating in a balance gear to the heater through the LIN bus, and after the heater receives the heating request for heating in the balance gear, the battery cooling liquid is heated in the balance gear, so that the temperature of the battery cooling liquid is maintained in a preset temperature interval, and the purpose of increasing the temperature of the power battery is achieved by heat exchange between the power battery and the battery cooling liquid.
In addition, when the heater is heated to the temperature of the battery cooling liquid and then stops heating, and after the temperature of the subsequent battery cooling liquid falls to the lower limit value, the battery cooling liquid temperature controller sends a heating request of heating in a balance gear to the heater through the LIN bus, the heater receives the heating request of heating in the balance gear, then heats the battery cooling liquid in the balance gear, and circulates the heating and the heating stopping processes to keep the temperature of the battery cooling liquid within a preset temperature interval all the time, so that the discharging capacity of the power battery is kept in the optimal state.
In the method for controlling the temperature of the battery coolant in the embodiment, the heating instruction is received, the heater is controlled to heat the battery coolant at the maximum available heating gear according to the heating instruction, when the temperature of the battery coolant is detected to rise to the upper limit value of the preset temperature range, heating is suspended, when the temperature of the battery coolant is detected to fall to the lower limit value of the preset temperature range, the battery coolant is subjected to shift heating to enable the temperature of the coolant to rise to the upper limit value, a balance gear is determined in the shift heating process, when the temperature of the battery coolant is detected to fall to the lower limit value again, the heater is controlled to heat the battery coolant at the balance gear, the temperature of the battery coolant is enabled to be within the preset temperature range, the power battery is enabled to rise the temperature by heat exchange with the battery coolant, the temperature of the power battery is effectively raised in a low-temperature environment, the current impact on the power battery caused by frequent gear shifting for improving the temperature in a low-temperature environment is reduced, the risk of over-discharging the power battery is reduced, the service life of the power battery is prolonged, the cost is reduced, and the user experience is improved.
In one embodiment, the maximum available heating gear is determined according to the maximum discharge power reported by the power battery. The discharge capacity of the power battery is limited in a low-temperature environment, and the discharge power possibly provided is not enough to support the heater to work at the maximum heating gear of the heater, so the maximum available heating gear is determined according to the discharge power reported by the power battery and the consumption power corresponding to different heating gears of the heater.
For example, in a low-temperature environment of 0 °, the discharge capacity of the power battery is severely limited, the maximum discharge power is only 2000W, while the consumption power of the heater in the maximum heating gear 6 gear is 5000W, and the power provided by the power battery is insufficient to support the heater to operate in 6 gear; and if the maximum power reported by the power battery is 5000W, and the heating gear corresponding to 5000W in the heating gears of the heater is 6 gears, the maximum available heating gear is 6 gears.
Further, the heater comprises a plurality of heating gears, each heating gear corresponds to different consumption power, and as shown in fig. 3, the maximum available heating gear is determined by the following method:
s21: and determining the maximum discharge power reported by the power battery.
The temperature of the power battery is influenced by the external environment, and the lower the temperature of the external environment is, the lower the temperature of the power battery is, and the lower the discharge capacity is. Under the environment of different temperatures, the temperature of the power battery is different, and the discharge power of the power battery is also different. Therefore, before the heater heats the battery coolant, in order to enable the heater to operate at the maximum available heating gear, it is necessary to confirm the maximum discharge power of the power battery.
S22: and if the maximum discharge power reported by the power battery is greater than or equal to the consumption power corresponding to the maximum heating gear of the heater, taking the maximum heating gear of the heater as the maximum available heating gear.
The heater has different heating gears, each heating gear corresponds to different consumed power, for example, the heater in this embodiment has 6 gears, and the heater gear and the consumed power corresponding to each gear are shown in the following table 1:
| gear position | Request for | Consuming power |
| 1 | 17％ | 850W |
| 2 | 33％ | 1650W |
| 3 | 50％ | 2500W |
| 4 | 67％ | 3350W |
| 5 | 83％ | 4150W |
| 6 | 100％ | 5000W |
TABLE 1
It should be understood that in other embodiments, the heating gear of the heater and the corresponding power consumption can be other, and are not limited herein.
After the maximum discharge power of the power battery is determined, if the maximum discharge power reported by the power battery is greater than or equal to the consumption power corresponding to the maximum heating gear of the heater, the maximum heating gear of the heater is used as the maximum available heating gear. For example, the maximum discharge power of the power battery is 5100W, which is greater than 5000W of the consumed power of the maximum heating gear 6 gear of the heater, and the heating gear 6 gear of the heater is the maximum available heating gear.
In another embodiment, according to the difference of the maximum discharge power reported by the power battery, it may also be determined that the other heater heating gear is the maximum available heating gear, for example, when the maximum discharge power reported by the power battery is 4500W, which is smaller than 5000W of the power consumption of the 6 th gear of the heater but larger than 4150W of the power consumption of the 5 th gear of the heater, the maximum available heating gear is 5 th gear of the heater. According to the maximum discharge power reported by the power battery and the heating gear of the heater, corresponding power consumption, the maximum available heating gear can be used as other heater heating gears, and details are not repeated herein.
In the embodiment, the maximum discharge power reported by the power battery in different temperature environments is determined, and the maximum available heating gear is determined by comparing the reported maximum discharge power with the heating gear of the heater and the corresponding consumption power, so that the discharge power of the power battery can meet the consumption power required by the corresponding gear of the heater, and the heater can work at the heating gear corresponding to the maximum discharge power reported by the power battery at the beginning instead of working at the maximum heating gear of the heater at the beginning, thereby shortening the downshifting and heating processes in the process of determining the balance gear, reducing the gear shifting operation of the heater in the process of determining the balance gear, further reducing the current impact on the power battery caused by frequent gear shifting, reducing the risk of over-discharge of the power battery, and prolonging the service life of the battery, and simultaneously, the efficiency is improved.
In one embodiment, as shown in fig. 4, in step S40, the method for controlling the heater to heat the battery coolant in the shifting manner so that the coolant temperature rises to the upper limit value, and determining the balance gear during the heating in the shifting manner includes the following steps:
s41: and controlling a next heating gear of a previous heating gear of the heater to heat the battery cooling liquid, wherein the previous heating gear is a heating gear used by the heater for heating last time.
The battery coolant temperature controller sends a heating request to the heater through the LIN bus, the heating request is used for indicating a next-stage heating gear of a previous-stage heating gear of the heater to heat the battery coolant, after the heater receives the heating request, the next-stage heating gear of the previous-stage heating gear heats the battery coolant, and the previous-stage heating gear is a heating gear used by the heater for heating last time. For example, if the heating gear used by the heater to heat the battery coolant last time is 6 th gear, the heater heats the battery coolant using the next heating gear (i.e., 5 th gear) of 6 th gear this time.
In other embodiments, the heating gear of the previous stage may also be another heating gear of the heater, for example, if the heating gear used by the heater to heat the battery coolant last time is 5 gears, the heater uses the next heating gear (i.e., 4 gears) of 5 gears to heat the battery coolant this time.
S42: and if the temperature of the battery cooling liquid is detected to be incapable of being heated to be larger than or equal to the lower limit value after the preset time, heating the battery cooling liquid by the upper-stage heating gear, and determining the upper-stage heating gear as a balance gear.
After the heater heats the battery cooling liquid, if the temperature of the battery cooling liquid is detected to be incapable of being heated to be larger than or equal to the lower limit value after the preset time, the battery cooling liquid is heated by the upper-stage heating gear, and the upper-stage heating gear is determined to be a balance gear. For example, the preset time period is 5 minutes, after the heater heats the battery coolant in 5 steps, if it is detected that the temperature of the battery coolant is 42 ℃ and is less than the lower limit value 45 ℃ of the preset temperature interval after 5 minutes, the battery coolant temperature controller sends a heating request for heating in 6 steps to the heater through the LIN bus, and after the heater receives the heating request for heating in 6 steps, the heater heats the battery coolant in 6 steps, and determines that 6 steps are a balance step.
S43: and if the temperature of the battery cooling liquid is detected to be capable of being heated to the upper limit value after the preset time length, controlling the heater to pause heating of the battery cooling liquid, and repeatedly executing the steps a-c when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again until the balance gear is determined.
After the heater heats the battery cooling liquid, if the temperature of the battery cooling liquid is detected to be capable of being heated to the upper limit value after the preset time, the battery cooling liquid temperature controller sends a heating suspension request to the heater through the LIN bus, and after the heater receives the heating suspension request, the heater suspends heating the battery cooling liquid. And when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, repeating the steps a-c until the balance gear is determined.
For example, if it is detected that the temperature of the battery coolant is 50 ℃ after 5 minutes and reaches the upper limit value of the preset temperature interval, the battery coolant temperature controller sends a heating suspension request to the heater through the LIN bus, and the heater suspends heating of the battery coolant after receiving the heating suspension request.
When the temperature of the battery cooling liquid is detected to be reduced to 45 ℃ below the lower limit value again, the battery cooling liquid temperature controller sends a heating request of heating in 4 grades to the heater through the LIN bus, the heater heats the battery cooling liquid in 4 grades after receiving the heating request of heating in 4 grades, and after the battery cooling liquid is heated in 4 grades for 5 minutes, if the temperature of the battery cooling liquid is lower than 45 ℃, the heater heats the battery cooling liquid in 5 grades of the upper heating grade of 4 grades, and the 5 grades are determined as balance grades; if the battery coolant temperature can reach 50 ℃, the heating operation is cycled again and suspended until an equilibrium gear is determined.
In other embodiments, the balance gear may also be 2 or 3 gears of the heater heating gear, which is not described herein.
In this embodiment, after the heater is controlled to downshift the battery coolant and heat for a preset time, the balance gear is determined according to the fact that the temperature of the battery coolant cannot reach the lower limit value of the preset temperature range, the balance gear of the heater is determined in the preset temperature range and under the condition that the power battery is at the optimal temperature, so that frequent subsequent gear shifting caused by the temperature of the battery coolant is reduced, and power consumption waste caused by heating of the heater with an excessively high gear is also reduced.
In one embodiment, after step S50, that is, after controlling the heater to heat the battery coolant in the balance gear, the method for controlling the temperature of the battery coolant further includes: and when the temperature of the power battery reaches a preset temperature value, controlling the heater to stop heating the battery cooling liquid.
After the battery cooling liquid temperature controller controls the heater to heat the battery cooling liquid in a balance gear, the temperature of the power battery is also increased along with the increase of the temperature of the battery cooling liquid through heat exchange with the battery cooling liquid, when the temperature of the power battery is detected to reach a preset temperature value, a heating stopping instruction is sent to the heater, and after the heater receives the heating stopping instruction, the heating of the battery cooling liquid is stopped.
For example, the preset temperature value of the power battery is 10 ℃, the ECU receives a power battery temperature signal reported by a Battery Management System (BMS) through a CAN bus, when the power battery temperature reported by the BMS reaches 10 ℃, the ECU or the battery coolant temperature controller sends a heating stop instruction to the heater through an LIN bus, and the heater stops heating the battery coolant after receiving the heating stop instruction.
It should be understood that the preset temperature value of the power battery is the optimal discharge temperature set according to the characteristics and parameters of the power battery, and in other embodiments, the preset temperature value of the power battery may be set to other temperature values, which are not described herein again.
In other embodiments, the heating stop instruction may also be sent to the heater by other modules or devices in other manners, for example, a user may send the heating stop instruction to the heater through a wireless network using an external device, which is not described herein again.
In the embodiment, when the temperature of the power battery reaches the preset temperature value, the heater is controlled to stop heating the battery cooling liquid, so that the temperature of the power battery is maintained in the optimal interval, the discharging capacity of the power battery is optimal, the risk of overhigh temperature of the power battery caused by always heating the battery cooling liquid is reduced, the service life of the power battery is prolonged, and the cost is reduced.
In one embodiment, the battery coolant temperature control method further includes: when the temperature signal of the power battery and/or the battery cooling liquid is not detected and the heater is in a heating gear, the heater is controlled to stop heating.
In the process that the battery cooling liquid temperature controller controls the heater to heat the battery cooling liquid, the temperature signal of the battery cooling liquid is received as the starting condition of the heating action, when the temperature of the battery cooling liquid rises to the upper limit value of the preset temperature interval, the heating is suspended, when the temperature of the battery cooling liquid falls to the lower limit value of the preset temperature interval, the heating is started, and the temperature of the power battery also rises along with the rise of the temperature of the battery cooling liquid through the heat exchange with the battery cooling liquid. If the temperature detection system fails to detect the temperature of the battery coolant or the power battery, the heater is heated all the time because the heater cannot receive the temperature signal, which causes the temperature of the power battery to be too high, shortens the service life of the power battery, and causes potential safety hazards to a running vehicle.
In the embodiment, when the temperature signal of the power battery and/or the battery cooling liquid cannot be detected, the heater is controlled to stop heating, so that the risk of overhigh temperature of the power battery caused by overheating is reduced, the potential safety hazard of a vehicle is reduced, and the service life of the power battery is prolonged.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In one embodiment, a battery coolant temperature control device is provided, which corresponds to the battery coolant temperature control method described in the above embodiments one to one. As shown in fig. 5, the battery coolant temperature control apparatus includes a receiving module 501 and a processing module 502, and each functional module is described in detail as follows:
a receiving module 501, configured to receive a heating instruction;
the processing module 502 is configured to control the heater to heat the battery coolant at the maximum available heating gear when the receiving module receives the heating instruction;
when the temperature of the battery cooling liquid is detected to rise to the upper limit value of the preset temperature interval, controlling a heater to pause heating the battery cooling liquid;
when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value of the preset temperature range, controlling the heater to perform gear shifting heating on the battery cooling liquid so that the temperature of the cooling liquid is increased to the upper limit value, and determining a balance gear in the gear shifting heating process, wherein the balance gear is a heating gear which enables the temperature of the battery cooling liquid to be within the preset temperature range by the heater;
and when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, controlling the heater to heat the battery cooling liquid in a balance gear.
For specific limitations of the battery coolant temperature control device, reference may be made to the above limitations of the battery coolant temperature control method, which are not described in detail herein. Each module in the above battery coolant temperature control apparatus may be wholly or partially implemented by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, there is provided a battery coolant temperature controller comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the battery coolant temperature control method described above when executing the computer program.
In one embodiment, a computer apparatus is provided, which can be used as the above-mentioned battery coolant temperature controller, and the internal structure thereof can be as shown in fig. 6. The computer device comprises a processor, a memory and a network interface which are connected through a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external device through a network connection. The computer program is executed by a processor to implement a battery coolant temperature control method.
In one embodiment, a computer-readable storage medium is provided, which stores a computer program that, when executed by a processor, implements the steps of the battery coolant temperature control method described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A battery coolant temperature control method, characterized by comprising:
receiving a heating instruction;
controlling a heater to heat the battery cooling liquid at the maximum available heating gear according to the heating instruction;
when the temperature of the battery cooling liquid is detected to rise to the upper limit value of a preset temperature interval, controlling the heater to pause heating the battery cooling liquid;
when the temperature of the battery cooling liquid is detected to be reduced to a lower limit value of the preset temperature range, controlling the heater to perform gear shifting heating on the battery cooling liquid so that the temperature of the battery cooling liquid is increased to the upper limit value, and determining a balance gear in the gear shifting heating process, wherein the balance gear is a heating gear which enables the temperature of the battery cooling liquid to be within the preset temperature range by the heater;
and when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, controlling the heater to heat the battery cooling liquid at the balance gear.
2. The battery coolant temperature control method according to claim 1, wherein the maximum available heating gear is determined according to a maximum discharge power reported by a power battery.
3. The battery coolant temperature control method according to claim 2, wherein the heater includes a plurality of the heating steps, each of the heating steps corresponding to a different consumption power, and the maximum available heating step is determined by:
determining the maximum discharge power reported by the power battery;
and if the maximum discharge power reported by the power battery is greater than or equal to the consumed power corresponding to the maximum heating gear of the heater, taking the maximum heating gear of the heater as the maximum available heating gear.
4. The battery coolant temperature control method according to any one of claims 1 to 3, wherein the controlling the heater to perform shift heating of the battery coolant such that the coolant temperature rises to the upper limit value and an equilibrium gear is determined during the shift heating includes:
a. controlling a next-stage heating gear of a previous-stage heating gear of the heater to heat the battery cooling liquid, wherein the previous-stage heating gear is a heating gear used by the heater for heating last time;
b. if the temperature of the battery cooling liquid is detected to be incapable of being heated to be greater than or equal to the lower limit value after the preset time, heating the battery cooling liquid by using the upper-stage heating gear, and determining the upper-stage heating gear as the balance gear;
c. and if the temperature of the battery cooling liquid is detected to be heated to the upper limit value after the preset time, controlling the heater to pause heating of the battery cooling liquid, and repeatedly executing the steps a-c when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again until the balance gear is determined.
5. The battery coolant temperature control method according to any one of claims 1 to 3, wherein after the controlling the heater to heat the battery coolant in the balance gear, the method further comprises:
and when the temperature of the power battery reaches a preset temperature value, controlling the heater to stop heating the battery cooling liquid.
6. The battery coolant temperature control method according to any one of claims 1 to 3, characterized by further comprising:
and when the temperature signal of the power battery and/or the battery cooling liquid is not detected and the heater is out of a heating gear, controlling the heater to stop heating.
7. A battery coolant temperature control apparatus, characterized by comprising:
the receiving module is used for receiving a heating instruction;
the processing module is used for controlling the heater to heat the battery cooling liquid at the maximum available heating gear when the receiving module receives the heating instruction;
when the temperature of the battery cooling liquid is detected to rise to the upper limit value of a preset temperature interval, controlling the heater to pause heating the battery cooling liquid;
when the temperature of the battery cooling liquid is detected to be reduced to a lower limit value of the preset temperature range, controlling the heater to perform gear shifting heating on the battery cooling liquid so that the temperature of the battery cooling liquid is increased to the upper limit value, and determining a balance gear in the gear shifting heating process, wherein the balance gear is a heating gear which enables the temperature of the battery cooling liquid to be within the preset temperature range by the heater;
and when the temperature of the battery cooling liquid is detected to be reduced to the lower limit value again, controlling the heater to heat the battery cooling liquid at the balance gear.
8. A battery coolant temperature controller comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the battery coolant temperature control method according to any one of claims 1 to 6 when executing the computer program.
9. A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the steps of the battery coolant temperature control method according to any one of claims 1 to 6.
10. A battery coolant temperature control system, characterized in that the battery coolant temperature control system comprises a heater and the battery coolant temperature controller of claim 8, the heater being connected with the battery coolant temperature controller.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113968120A (en) * | 2021-12-03 | 2022-01-25 | 宜宾凯翼汽车有限公司 | Multi-gear adjustment control high-pressure water heating PTC control system and method |
| CN116073029A (en) * | 2023-04-06 | 2023-05-05 | 成都赛力斯科技有限公司 | External heating method, device, equipment and storage medium for automobile battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150105956A1 (en) * | 2012-05-22 | 2015-04-16 | Byd Company Limited | Power system of electric vehicle, electric vehicle comprising the same and method for heating battery group of electric vehicle |
| KR20150059247A (en) * | 2013-11-22 | 2015-06-01 | 현대자동차주식회사 | Battery temperature rising system and control method therof |
| CN106413165A (en) * | 2016-10-31 | 2017-02-15 | 广东美的厨房电器制造有限公司 | Semiconductor microwave heating equipment, power control method thereof, and power control device thereof |
| WO2017056162A1 (en) * | 2015-09-28 | 2017-04-06 | 本田技研工業株式会社 | Power consumption control device |
| CN107482703A (en) * | 2017-06-16 | 2017-12-15 | 宝沃汽车（中国）有限公司 | The charge control method and vehicle of charging management system, electrokinetic cell |
| CN107834120A (en) * | 2017-10-30 | 2018-03-23 | 北京新能源汽车股份有限公司 | A kind of heating means of electrokinetic cell, device and electric automobile |
| CN109346802A (en) * | 2018-09-30 | 2019-02-15 | 蔚来汽车有限公司 | The humidity control system and method for power battery |
| CN110212271A (en) * | 2019-06-17 | 2019-09-06 | 广州小鹏汽车科技有限公司 | Vehicle and its battery pack heating means and device |
-
2020
- 2020-01-06 CN CN202010011155.0A patent/CN113078387B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150105956A1 (en) * | 2012-05-22 | 2015-04-16 | Byd Company Limited | Power system of electric vehicle, electric vehicle comprising the same and method for heating battery group of electric vehicle |
| KR20150059247A (en) * | 2013-11-22 | 2015-06-01 | 현대자동차주식회사 | Battery temperature rising system and control method therof |
| WO2017056162A1 (en) * | 2015-09-28 | 2017-04-06 | 本田技研工業株式会社 | Power consumption control device |
| CN106413165A (en) * | 2016-10-31 | 2017-02-15 | 广东美的厨房电器制造有限公司 | Semiconductor microwave heating equipment, power control method thereof, and power control device thereof |
| CN107482703A (en) * | 2017-06-16 | 2017-12-15 | 宝沃汽车（中国）有限公司 | The charge control method and vehicle of charging management system, electrokinetic cell |
| CN107834120A (en) * | 2017-10-30 | 2018-03-23 | 北京新能源汽车股份有限公司 | A kind of heating means of electrokinetic cell, device and electric automobile |
| CN109346802A (en) * | 2018-09-30 | 2019-02-15 | 蔚来汽车有限公司 | The humidity control system and method for power battery |
| CN110212271A (en) * | 2019-06-17 | 2019-09-06 | 广州小鹏汽车科技有限公司 | Vehicle and its battery pack heating means and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113968120A (en) * | 2021-12-03 | 2022-01-25 | 宜宾凯翼汽车有限公司 | Multi-gear adjustment control high-pressure water heating PTC control system and method |
| CN116073029A (en) * | 2023-04-06 | 2023-05-05 | 成都赛力斯科技有限公司 | External heating method, device, equipment and storage medium for automobile battery |
| CN116073029B (en) * | 2023-04-06 | 2023-06-02 | 成都赛力斯科技有限公司 | External heating method, device, equipment and storage medium for automobile battery |
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