CN117818429A - Vehicle, cooling method and device of power battery of vehicle and electronic equipment - Google Patents
Vehicle, cooling method and device of power battery of vehicle and electronic equipment Download PDFInfo
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- CN117818429A CN117818429A CN202211199171.2A CN202211199171A CN117818429A CN 117818429 A CN117818429 A CN 117818429A CN 202211199171 A CN202211199171 A CN 202211199171A CN 117818429 A CN117818429 A CN 117818429A
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- power battery
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- 238000001816 cooling Methods 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 claims description 25
- 238000004590 computer program Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a vehicle, a cooling method and device for a power battery of the vehicle and electronic equipment. The cooling method of the power battery of the vehicle includes: acquiring the temperature of the external environment; if the temperature of the external environment is higher than the first preset temperature, judging whether the power battery needs to be charged quickly; if the power battery is judged to be required to be charged quickly, judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not; if the residual electric quantity value of the power battery is larger than the preset electric quantity, controlling the cooling unit to cool the power battery comprises the following steps. The cooling device for the power battery has higher reliability in cooling the power battery.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a vehicle, a method and an apparatus for cooling a power battery of the vehicle, and an electronic device.
Background
Along with the increasingly prominent environmental pollution problem, new energy automobiles are developed very rapidly in recent years, and currently, most of new energy automobiles adopt power batteries as electric power sources. But the power battery can generate heat in the charging and discharging process, and if the power battery can not timely emit heat under high-temperature working conditions, such as quick charging, the working efficiency of the power battery can be affected, the service life of the power battery can be affected, and even potential safety hazards are caused. In a related-art new energy automobile, a cooling unit is generally considered to be arranged to cool a power battery, and in a specific implementation, the cooling unit is generally controlled to cool the power battery according to the temperature of the power battery collected by a temperature collecting device in a quick charging process. However, since the battery pack of the power battery is hot-melted greatly, which causes a delay in the temperature rise of the battery, and since the temperature condition of the power battery cannot be known in real time, there is a possibility that the temperature of the power battery exceeds the set limit and cooling is not performed yet, there is a problem in the related art that the cooling reliability is poor in the cooling of the power battery.
Disclosure of Invention
Accordingly, it is necessary to provide a vehicle, a method and an apparatus for cooling a power battery of the vehicle, and an electronic device, in order to solve the problem of poor cooling reliability in the power battery system in the prior art.
A first aspect of an embodiment of the present application provides a cooling method for a power battery of a vehicle, including:
acquiring the temperature of the external environment; if the temperature of the external environment is higher than the first preset temperature, judging whether the power battery needs to be charged quickly; if the power battery is judged to be required to be charged quickly, judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not; and if the residual electric quantity value of the power battery is larger than the preset electric quantity, controlling the cooling unit to cool the power battery.
In the process of quick charging of the power battery, the charging current is larger, the heating is obvious, in the scheme, when the power battery is judged to be required to be quickly charged, if the residual electric quantity value of the power battery is larger than the preset electric quantity, namely, the electric quantity of the power battery is enough to support the cooling unit to cool, the cooling unit is controlled to cool the power battery, the cooling unit is pre-cooled before the quick charging process, and compared with the prior art, the cooling unit is restarted when the temperature of the power battery is detected to rise, the cooling unit is pre-cooled before the power battery is not heated seriously, so that the over-temperature condition of the power battery can be fully ensured not to occur in the quick charging process, and the cooling reliability of the power battery is improved.
A second aspect of the embodiments of the present application provides a cooling device for a power battery of a vehicle, including:
the acquisition module is used for acquiring the temperature of the external environment;
the first judging module is used for judging whether the power battery needs to be charged quickly or not if the temperature of the external environment is higher than a first preset temperature;
the second judging module is used for judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not if the power battery is judged to be required to be charged quickly;
and the control module is used for controlling the cooling unit to cool the power battery if the residual electric quantity value of the power battery is larger than the preset electric quantity.
A third aspect of the embodiments of the present application provides a vehicle, including a cooling device for a power battery of the vehicle.
A fourth aspect of the present embodiment provides an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor executes the computer program to implement the steps of the method for cooling a power battery of a vehicle.
A fifth aspect of the embodiments of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described method of cooling a power battery of a vehicle.
Drawings
Fig. 1 is a schematic flow chart of a cooling method of a power battery of a vehicle according to an embodiment of the present application;
fig. 2 is a flowchart schematically illustrating a specific example of a cooling method of a power battery of a vehicle according to an embodiment of the present application;
fig. 3 is a schematic structural view of a cooling device for a power battery of a vehicle according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a vehicle according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Reference numerals illustrate:
100. a cooling device for a power battery of a vehicle;
110. an acquisition module; 120. a first judgment module; 130. a second judging module; 140. a control module;
200. a vehicle; 300. an electronic device; 310. a memory; 320. a processor.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The following describes a vehicle, a cooling method and a cooling device for a power battery of the vehicle, and an electronic device according to embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a cooling method of a power battery of a vehicle according to an embodiment of the present application.
Referring to fig. 1, an embodiment of the present application provides a cooling method of a power battery of a vehicle, including:
s10, acquiring the temperature of the external environment;
s20, if the temperature of the external environment is higher than a first preset temperature, judging whether the power battery needs to be charged quickly;
s30, if the power battery is judged to be required to be charged quickly, judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not;
and S40, if the residual electric quantity value of the power battery is larger than the preset electric quantity, controlling the cooling unit to cool the power battery.
In the process of quick charging of the power battery, the charging current is larger, the heating is obvious, in the scheme, when the power battery is judged to be required to be quickly charged, if the residual electric quantity value of the power battery is larger than the preset electric quantity, namely, the electric quantity of the power battery is enough to support the cooling unit to cool, the cooling unit is controlled to cool the power battery, the cooling unit is pre-cooled before the quick charging process, and compared with the prior art, the cooling unit is restarted when the temperature of the power battery is detected to rise, the cooling unit is pre-cooled before the power battery is not heated seriously, so that the over-temperature condition of the power battery can be fully ensured not to occur in the quick charging process, and the cooling reliability of the power battery is improved.
The temperature of the external environment may be obtained, for example, by providing a temperature sensor on the vehicle, and the temperature of the external environment may refer to the temperature of the space around the vehicle.
The first preset temperature may be a temperature determined according to actual needs, for example, may be 35 ℃. When the temperature of the external environment is higher, for example, when the power battery is charged quickly in summer, the condition that the temperature of the power battery is too high easily occurs, and the power battery can be pre-cooled in time when the power battery is charged quickly in summer under the working condition that the environment temperature is higher by setting a specific value of the first preset temperature.
In this embodiment, the cooling mode of the cooling unit in the vehicle may include air cooling by a fan and water cooling by a water cooling plate, in which a cooling liquid is provided, and heat exchange is performed by an air conditioning compressor provided in the vehicle. Here, controlling the cooling unit to cool the power battery may refer to controlling the fan to start, or controlling the air conditioner compressor to start to cool the power battery.
It can be understood that the cooling unit needs to consume power for cooling operation, so before the cooling unit is started, it is further required to determine whether the power battery has enough electric quantity for cooling, specifically, it is required to determine whether the residual electric quantity value of the power battery is greater than a preset electric quantity, and if the residual electric quantity value of the power battery is greater than the preset electric quantity, the cooling unit is controlled to cool the power battery. The preset electric quantity can be set according to actual needs.
In this embodiment, in step S20, determining whether the power battery needs to be quickly charged specifically includes:
and acquiring navigation information of a navigation module on the vehicle, and judging whether the power battery needs to be charged quickly according to the navigation information. In the case where the vehicle needs to be charged, an operator can navigate through a navigation module on the vehicle to reach a quick charging station. Here, the navigation information may include information of a navigation destination, a distance of a current position of the vehicle from the navigation destination, and the like.
When the method is specifically implemented, whether the power battery needs to be charged quickly or not is judged according to the navigation information, and the method specifically comprises the following steps:
if the navigation destination in the navigation information is a quick charging station and the distance between the vehicle and the quick charging station is smaller than the preset distance, judging that the power battery needs to be quickly charged; if the navigation destination in the navigation information does not comprise the quick charging station, judging that the power battery does not need to be quickly charged.
When the distance between the vehicle and the quick charging station is smaller than the preset distance and the quick charging is about to be performed, the power battery is required to be pre-cooled in advance when the quick charging is judged to be required to be performed. In contrast, if the navigation destination in the navigation information does not include the quick charge station, it is determined that the vehicle has no quick charge requirement.
It will be appreciated that the pre-cooling process described above is performed prior to a formal fast charge, and may be stopped once the power cell begins to charge fast.
In the step S40, if the remaining electric quantity value of the power battery is greater than the preset electric quantity, the cooling unit is controlled to cool the power battery, and then the method further includes: and judging whether the power battery is started to be quickly charged, and if so, controlling the cooling unit to stop cooling the power battery.
Wherein, judging whether the power battery has been started to be rapidly charged may specifically include:
the method comprises the steps of obtaining charging information of a locomotive system on a vehicle, judging whether quick charging of the power battery is started or not according to the charging information, wherein the charging information is used for indicating whether the power battery is in a quick charging state or not, for example, the charging information can be a current value in a circuit where the power battery is located, and judging that the power battery is in quick charging when the current value is larger than a preset current.
In this embodiment of the present application, in the process of pre-cooling the power battery, if the temperature of the power battery is already low, it is considered to stop pre-cooling the power battery.
In an exemplary embodiment, in step S40, if the remaining electric quantity value of the power battery is greater than the preset electric quantity, the cooling unit is controlled to cool the power battery, and then the method further includes:
acquiring the temperature of a power battery; and if the highest temperature of the power battery is smaller than the second preset temperature, controlling the cooling unit to stop cooling the power battery. This can avoid excessively consuming the electric quantity of the power battery.
The above steps focus on pre-cooling the power cells prior to fast charging. It will be appreciated that when the power battery does not need to be charged quickly, the power battery is cooled as needed, taking into account the effects of ambient temperature and vehicle speed.
In particular, the cooling method of the power battery of the vehicle may further include:
when the power battery is judged to be not required to be charged quickly, the output power of the power battery is obtained;
if the output power of the power battery is larger than the preset power, judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not;
if yes, the cooling unit is controlled to cool the power battery.
In the above scheme, if the output power of the battery is greater than the preset power, the vehicle is in a high power consumption state, such as a braking state or a climbing state, and the power battery is also easy to overheat, and pre-cooling is needed. It should be noted that the preset power is smaller than the power capable of causing the power battery to overheat, so that the power battery is pre-cooled before overheat, and overheat of the power battery during long-term high-power operation can be avoided to a great extent.
As described above, the cooling operation performed by the cooling unit requires power consumption, and therefore, before the cooling unit is started, it is also required to determine whether the power battery has enough power for cooling, specifically, whether the remaining power value of the power battery is greater than a preset power, and if the remaining power value of the power battery is greater than the preset power, the cooling unit is controlled to cool the power battery.
It is understood that the step of obtaining the output power of the power cell may include:
the method comprises the steps of acquiring the working voltage and the working current of a power battery from a battery management system on a vehicle, and calculating the output power of the power battery according to the working voltage and the working current of the power battery.
In an embodiment of the present application, the cooling method of the power battery of the vehicle may further include:
when the power battery is judged to be not required to be charged quickly, if the speed of the vehicle is greater than the preset speed, judging whether the residual electric quantity value of the power battery is greater than the preset electric quantity or not;
if yes, the cooling unit is controlled to cool the power battery.
In the scheme, the speed of the vehicle is greater than the preset speed, namely, when the speed of the vehicle is higher, the power battery can generate heat obviously, so that when the speed of the vehicle is higher, the power battery is pre-cooled, and the problem of overheat of the power battery caused by long-time high-speed running of the vehicle can be avoided to a great extent. It should be noted that the preset speed is smaller than the speed that can cause the power battery to overheat, so that the power battery is pre-cooled before the power battery enters the overheat state, and the overheat condition of the power battery can be avoided to a greater extent.
In this embodiment of the present application, in the cooling process started because the output power of the power battery is greater than the preset power, or the vehicle speed of the vehicle is greater than the preset speed, if the temperature of the power battery is already low, it may be considered to stop pre-cooling the power battery.
The step of controlling the cooling unit to cool the power battery further includes, illustratively:
acquiring the temperature of a power battery; and if the highest temperature of the power battery is smaller than the second preset temperature, controlling the cooling unit to stop cooling the power battery. This can avoid excessively consuming the electric quantity of the power battery.
Fig. 2 is a flowchart illustrating a specific example of a cooling method of a power battery of a vehicle according to an embodiment of the present application.
A specific example is given below to explain the cooling method of the power battery of the vehicle of the present application.
Referring to fig. 2, the cooling method includes:
acquiring the temperature of the external environment, judging whether the temperature of the external environment is higher than a first preset temperature T1, if so, judging whether the vehicle is about to navigate to a quick charging pile of a quick charging station according to navigation information of the vehicle, if so, judging whether the residual electric quantity SOC of the power battery is higher than a preset electric quantity s1, and if so, starting a cooling unit to cool the power battery. Here, the remaining electric power value may be obtained by a battery management system on the vehicle. In addition, in the cooling process, the temperature of the power battery is obtained, whether the highest temperature of the power battery is smaller than a second preset temperature T2 is judged, and if yes, the cooling of the cooling unit is stopped. Here, the first preset temperature T1 and the second preset temperature T2 may be set according to actual needs, and may be equal to each other, or the first preset temperature T1 may be smaller than the second preset temperature T2.
In the step of judging whether the vehicle is about to navigate to the quick charge pile of the quick charge station according to the navigation information of the vehicle, if not, judging whether the output power of the power battery is greater than the preset power P, if so, judging whether the residual electric quantity SOC of the power battery is greater than the preset electric quantity s1, and if so, starting the cooling unit to cool the power battery. And in the cooling process, acquiring the temperature of the power battery, judging whether the highest temperature of the power battery is smaller than a second preset temperature T2, and if so, stopping cooling of the cooling unit. Here, the first preset temperature T1 and the second preset temperature T2 may be set according to actual needs, and may be equal to each other, or the first preset temperature T1 may be smaller than the second preset temperature T2.
Fig. 3 is a schematic structural diagram of a cooling device for a power battery of a vehicle according to an embodiment of the present application.
Referring to fig. 3, the embodiment of the present application further provides a cooling device 100 for a power battery of a vehicle, the cooling device 100 for a power battery of a vehicle including:
an acquisition module 110 for acquiring the temperature of the external environment;
the first determining module 120 is configured to determine whether the power battery needs to be quickly charged if the temperature of the external environment is greater than a first preset temperature;
the second judging module 130 is configured to judge whether the remaining electric quantity value of the power battery is greater than a preset electric quantity if it is judged that the power battery needs to be charged quickly;
the control module 140 is configured to control the cooling unit to cool the power battery if the remaining electric quantity value of the power battery is greater than the preset electric quantity.
In this embodiment, the first determining module 120 is further configured to obtain navigation information of a navigation module on the vehicle, and determine whether to charge the power battery quickly according to the navigation information.
Further, the first determining module 120 is specifically further configured to: if the navigation destination in the navigation information is a quick charging station and the distance between the vehicle and the quick charging station is smaller than the preset distance, judging that the power battery needs to be quickly charged; if the navigation destination in the navigation information does not comprise the quick charging station, judging that the power battery does not need to be quickly charged.
Further, the control module 140 is specifically further configured to obtain the temperature of the power battery after controlling the cooling unit to cool the power battery; and if the highest temperature of the power battery is smaller than the second preset temperature, controlling the cooling unit to stop cooling the power battery.
Further, the control module 140 is specifically further configured to: after the cooling unit is controlled to cool the power battery, judging whether the power battery is rapidly charged or not; if yes, the cooling unit is controlled to stop cooling the power battery.
Further, the second determining module 130 is specifically further configured to obtain the output power of the power battery when it is determined that the power battery is not required to be charged quickly, and determine whether the remaining electric quantity value of the power battery is greater than the preset electric quantity if the output power of the power battery is greater than the preset power. The control module 140 is specifically further configured to control the cooling unit to cool the power battery when the remaining electric quantity value of the power battery is greater than the preset electric quantity.
Further, the second judging module 130 is specifically further configured to obtain an operating voltage and an operating current of the power battery from the battery management system on the vehicle, and calculate an output power of the power battery according to the operating voltage and the operating current of the power battery.
Further, the second determining module 130 is specifically further configured to determine, when it is determined that quick charging of the power battery is not required, if the vehicle speed of the vehicle is greater than a preset speed, whether the remaining electric quantity value of the power battery is greater than a preset electric quantity;
the control module 140 is specifically further configured to control the cooling unit to cool the power battery when the remaining electric quantity value of the power battery is greater than the preset electric quantity.
Fig. 4 is a schematic structural diagram of a vehicle according to an embodiment of the present application. Referring to fig. 4, the embodiment of the present application also provides a vehicle 200 including the cooling device 100 of the power battery of the vehicle of the above embodiment. The vehicle may be, for example, a new energy electric vehicle.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Referring to fig. 5, the embodiment of the present application further provides an electronic device 300, including a memory 310 and a processor 320, where the memory 310 stores a computer program, and the processor 320 implements steps of the cooling method for the power battery of the vehicle in the above embodiment when executing the computer program, and implementation principles and technical effects are similar, and are not repeated herein.
The embodiments of the present application further provide a computer readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the cooling method for a power battery of a vehicle in the foregoing embodiments, and implementation principles and technical effects are similar, and are not repeated herein.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (11)
1. A method of cooling a power battery of a vehicle, comprising:
acquiring the temperature of the external environment;
if the temperature of the external environment is higher than a first preset temperature, judging whether the power battery needs to be charged quickly;
if the power battery is judged to be required to be charged quickly, judging whether the residual electric quantity value of the power battery is larger than a preset electric quantity or not;
and if the residual electric quantity value of the power battery is larger than the preset electric quantity, controlling a cooling unit to cool the power battery.
2. The cooling method according to claim 1, wherein the determining whether the power battery needs to be fast charged includes:
acquiring navigation information of a navigation module on the vehicle;
and judging whether the power battery needs to be charged quickly according to the navigation information.
3. The cooling method according to claim 2, wherein the determining whether the power battery needs to be fast charged according to the navigation information comprises:
if the navigation destination in the navigation information is a quick charging station and the distance between the vehicle and the quick charging station is smaller than a preset distance, judging that the power battery needs to be quickly charged;
and if the navigation destination in the navigation information does not comprise a quick charging station, judging that the power battery does not need to be quickly charged.
4. The cooling method according to claim 1, wherein if the remaining power value of the power battery is greater than a preset power value, the cooling unit is controlled to cool the power battery, and further comprising:
acquiring the temperature of the power battery;
and if the highest temperature of the power battery is smaller than a second preset temperature, controlling the cooling unit to stop cooling the power battery.
5. The cooling method according to claim 1, wherein if the remaining power value of the power battery is greater than a preset power value, the cooling unit is controlled to cool the power battery, and further comprising:
judging whether the power battery is started to be quickly charged or not;
if yes, the cooling unit is controlled to stop cooling the power battery.
6. The cooling method according to claim 1, characterized in that the cooling method further comprises:
when the power battery is judged to be unnecessary to be charged quickly, the output power of the power battery is obtained;
if the output power of the power battery is larger than the preset power, judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not;
and if yes, controlling a cooling unit to cool the power battery.
7. The cooling method of claim 6, wherein the obtaining the output power of the power cell comprises:
and acquiring the working voltage and the working current of the power battery from the on-vehicle battery management system, and calculating the output power of the power battery according to the working voltage and the working current of the power battery.
8. The cooling method according to claim 1, characterized in that the cooling method further comprises:
when the fact that the power battery does not need to be charged quickly is judged, if the speed of the vehicle is greater than a preset speed, judging whether the residual electric quantity value of the power battery is greater than a preset electric quantity or not;
and if yes, controlling a cooling unit to cool the power battery.
9. A cooling device for a power battery of a vehicle, comprising:
the acquisition module is used for acquiring the temperature of the external environment;
the first judging module is used for judging whether the power battery needs to be charged quickly or not if the temperature of the external environment is higher than a first preset temperature;
the second judging module is used for judging whether the residual electric quantity value of the power battery is larger than the preset electric quantity or not if the power battery is judged to be required to be charged quickly;
and the control module is used for controlling the cooling unit to cool the power battery if the residual electric quantity value of the power battery is larger than the preset electric quantity.
10. A vehicle comprising the cooling device of the power battery of the vehicle according to claim 9.
11. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 8 when executing the computer program.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211199171.2A CN117818429A (en) | 2022-09-29 | 2022-09-29 | Vehicle, cooling method and device of power battery of vehicle and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211199171.2A CN117818429A (en) | 2022-09-29 | 2022-09-29 | Vehicle, cooling method and device of power battery of vehicle and electronic equipment |
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| CN202211199171.2A Pending CN117818429A (en) | 2022-09-29 | 2022-09-29 | Vehicle, cooling method and device of power battery of vehicle and electronic equipment |
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| CN (1) | CN117818429A (en) |
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