CN115303090A - Rapid energy supplementing method and system for new energy automobile under low-temperature condition - Google Patents

Rapid energy supplementing method and system for new energy automobile under low-temperature condition Download PDF

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Publication number
CN115303090A
CN115303090A CN202211237877.3A CN202211237877A CN115303090A CN 115303090 A CN115303090 A CN 115303090A CN 202211237877 A CN202211237877 A CN 202211237877A CN 115303090 A CN115303090 A CN 115303090A
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Prior art keywords
charging
battery
heating
temperature
program
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CN202211237877.3A
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CN115303090B (en
Inventor
于琪贺
于航
朱海涛
董广杰
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Yulong Automobile Liaoning Co ltd
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Yulong Automobile Liaoning Co ltd
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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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a method and a system for quickly supplementing energy of a new energy automobile under a low-temperature condition, wherein the method for quickly supplementing energy of the new energy automobile under the low-temperature condition comprises the following steps: acquiring state parameters of a battery; if the state parameter belongs to the first target type, charging by using a first charging program; if the state parameter belongs to a second target type, charging by using a second charging program; if the state parameter belongs to a third target type, charging by a third charging program; wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter. According to the method and the system for quickly supplementing energy to the new energy automobile under the low-temperature condition, provided by the invention, the charging mode can be reasonably selected according to the current state parameters of the battery, so that the battery is fully charged at the highest speed on the premise of not damaging the battery as much as possible.

Description

Method and system for quickly supplementing energy of new energy automobile under low-temperature condition
Technical Field
The invention relates to the technical field of automobile batteries, in particular to a method and a system for quickly supplementing energy of a new energy automobile under a low-temperature condition.
Background
The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure. The new energy automobile comprises a pure electric automobile, an extended range electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile and the like. Among them, a pure electric vehicle, an extended range electric vehicle, and a hybrid electric vehicle generally have a rechargeable battery. The battery is irreversibly damaged when being charged at low temperature, so that the technical problem of how to safely and efficiently heat the battery pack exists.
Disclosure of Invention
Therefore, it is necessary to provide a method and a system for quickly supplementing energy to a new energy vehicle under a low temperature condition, aiming at the problem that how to safely and efficiently heat a battery pack of the current new energy vehicle.
The above purpose is realized by the following technical scheme:
a method for quickly supplementing energy of a new energy automobile under a low-temperature condition comprises the following steps:
acquiring state parameters of a battery;
if the state parameter belongs to the first target type, charging by using a first charging program;
if the state parameter belongs to a second target type, charging by using a second charging program;
if the state parameter belongs to a third target type, charging by a third charging program;
wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter.
In one embodiment, if the state parameter belongs to the first target type, the charging is performed by a first charging procedure, which includes:
and if the first temperature parameter and the second temperature parameter are both greater than or equal to a first preset temperature, charging with first power.
In one embodiment, if the state parameter belongs to the second target type, the charging is performed by a second charging procedure, which includes:
and if the first temperature parameter is less than the first preset temperature, heating the battery by using a first heating program, and charging by using second charging power.
In one embodiment, the first heating program comprises:
acquiring a change value of a first temperature parameter within a preset time interval, and controlling the heating power of a first heating program according to the change value;
and/or acquiring charging stage information of the battery, and controlling the heating power of the first heating program according to the charging stage information.
In one embodiment, if the state parameter belongs to a third target type, the charging is performed by a third charging procedure, which includes:
and if the second temperature parameter is less than the second preset temperature, heating the battery by using a second heating program, and charging by using third charging power.
In one embodiment, the second heating program comprises:
acquiring a change value of a second temperature parameter within a preset time interval, and controlling the heating power of a second heating program according to the change value;
and/or acquiring total heating power information of the battery, and controlling the heating power of the second heating program according to the total heating power information.
In one embodiment, the state parameter of the battery further includes an ambient temperature.
In one embodiment, the state parameters of the battery further include partition information.
The invention also provides a system for quickly supplementing energy for the new energy automobile under the low-temperature condition, which comprises the following components:
the acquisition module is used for acquiring the state parameters of the battery;
the first execution module is used for charging by a first charging program if the state parameter belongs to a first target type;
the second execution module is used for charging by a second charging program if the state parameter belongs to a second target type;
the third execution module is used for charging by a third charging program if the state parameter belongs to a third target type;
wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter.
In one embodiment, the battery includes a first heating module and a second heating module.
The beneficial effects of the invention are:
therefore, the method and the system for rapidly supplementing energy of the new energy automobile under the low-temperature condition can reasonably select the charging mode according to the current state parameters of the battery, so that the battery is fully charged at the highest speed on the premise of not damaging the battery as much as possible.
Drawings
Fig. 1 is a flowchart of a method for rapidly supplementing energy to a new energy vehicle at a low temperature according to an embodiment of the first aspect of the present invention;
fig. 2 is a block diagram of a rapid energy supply system of a new energy vehicle under low temperature conditions according to an embodiment of the second aspect of the present invention.
Wherein:
10. an acquisition module; 21. a first execution module; 22. a second execution module; 23. and a third execution module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, a method for quickly supplementing energy to a new energy vehicle under a low temperature condition according to an embodiment of the first aspect of the present invention is described.
As shown in fig. 1, the method for quickly supplementing energy of a new energy automobile under a low temperature condition provided by the embodiment of the invention comprises the following steps:
s1, acquiring state parameters of a battery;
s2, if the state parameter belongs to the first target type, charging by using a first charging program;
s3, if the state parameter belongs to a second target type, charging by using a second charging program;
s4, if the state parameter belongs to a third target type, charging by using a third charging program;
wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter.
Specifically, when the battery is in an ideal charging state of the battery, the state parameter of the battery at this time is a first target type; accordingly, the first charging process is the charging process in the ideal state. For example, the ideal charging temperature of the battery is 0-40 ℃, and when the overall temperature of the battery is in the temperature range, the battery can be charged according to the rated maximum charging power, so that the battery can be fully charged at the highest speed without damaging the battery.
When the temperature of the battery is in a severe charging state, the state parameter of the battery is a second target type; correspondingly, the second charging procedure is a charging procedure in a worse state. For example, the ideal charging temperature of the battery is 0 to 40 ℃, when the temperature of the battery is-10 ℃ to 0 ℃, the battery charging state in the state is considered to be worse, the battery should be charged with a larger power, and the battery should be recovered to the ideal state by heating and the like in the process, and then charged with the fastest charging power, so that the battery can be fully charged at a faster speed, and the battery is damaged as little as possible.
When the temperature of the battery is in a severe charging state, the state parameter of the battery is a third target type; accordingly, the third charging process is a charging process under an extremely severe condition. For example, when the temperature of the battery is 0 to 40 ℃, the battery is considered to be in an extremely bad state of charge in which the battery is charged, and the battery should be charged with a small amount of power or not, and be quickly returned to the bad state by heating or the like, and then be charged with a fast charging power, thereby causing as little damage to the battery as possible.
In addition, because the battery of new energy automobile combines a plurality of electric cores into one or more battery package usually, charges a plurality of electric cores according to certain order when charging usually, even charge a plurality of electric cores simultaneously, also can be because distribution, the inside physicochemical state of electric core are inconsistent, lead to a plurality of electric cores to have the temperature difference. The state parameters of the battery may therefore also include battery partitioning, e.g., the battery may be partitioned into a first region located inside the battery and a second region located outside the battery, the temperature of the first region being a first temperature parameter and the temperature of the second region being a second temperature parameter. The battery itself generates a certain amount of heat during charging, which is usually transferred from the first area to the second area and then to the external environment, whereby the temperature of the first area is usually higher than that of the second area, especially when the ambient temperature is low. In determining the target type of the state parameter of the battery, the area information of the battery needs to be considered, and a specific determination manner will be described in detail in the following embodiments.
Therefore, according to the method for quickly supplementing energy to the new energy automobile under the low-temperature condition, provided by the embodiment of the first aspect of the invention, the charging mode can be reasonably selected according to the current state parameters of the battery, so that the battery is fully charged at the highest speed on the premise of not damaging the battery as much as possible.
For convenience of explanation, in the following embodiments, the battery is divided into a first region located inside the battery and a second region located outside the battery, the temperature of the first region being a first temperature parameter, and the temperature of the second region being a second temperature parameter.
In one embodiment, if the first temperature parameter and the second temperature parameter are both greater than or equal to a first preset temperature, the charging is performed with first power. The first preset temperature is a temperature lower limit value of an ideal charging state of the battery, and the first power is the maximum set charging power of the battery. When the first temperature parameter and the second temperature parameter are both larger than or equal to the lower temperature limit value of the ideal charging state of the battery, the whole battery is in the ideal charging state, and the battery is charged with the maximum power at the moment, so that the battery is not damaged, and the battery can be fully charged at the fastest speed.
In one embodiment, if the first temperature parameter is less than a first preset temperature and greater than a second preset temperature, the battery is heated by a first heating procedure and charged by a second charging power. The first preset temperature is a temperature lower limit value of an ideal charging state of the battery, the second preset temperature is a temperature lower limit value of a worse charging state of the battery, and the second charging power is a charging power which is larger but obviously smaller than the maximum charging power, for example, the first preset temperature is 0 ℃, the second preset temperature is-10 ℃, and the second charging power is 50% of the maximum charging power. When the first temperature parameter is smaller than the lower limit value of the ideal charging state of the battery but larger than the lower limit value of the worse charging state of the battery, the whole battery is in the worse charging state, and at the moment, the battery is charged with larger power firstly, and is heated by a first heating program, so that the battery is restored to the ideal state as soon as possible, and then is charged in the ideal state.
Further, the first heating procedure may include acquiring a variation value of the first temperature parameter within a preset time interval, and controlling the heating power of the first heating procedure according to the variation value. When the battery is heated, the influence caused by the heating of the battery needs to be considered, so that the heating rate of the battery needs to be controlled, and the heating power in the first heating program can be regulated and controlled in real time according to the temperature change of the battery.
Similarly, the first heating program may further include acquiring charging phase information of the battery, and controlling the heating power of the first heating program according to the charging phase information. The charging of the battery generally has a distinct division, for example, the battery enters trickle charging after being charged to 80%, the charging power is low, even if the temperature has a certain difference from the ideal state, the charging effect is not affected, and the heating power in the first heating procedure can be properly reduced.
In one embodiment, if the second temperature parameter is less than the second predetermined temperature, the battery is heated by the second heating program and charged by the third charging power. The second preset temperature is a lower temperature limit value of a battery in a severe charging state, and the third charging power is a smaller or zero charging power. When the second temperature parameter is smaller than the lower temperature limit value of the worse charging state of the battery, the whole battery is in the worse charging state, and at the moment, the battery is charged with lower power or not charged, and is heated by a second heating program, so that the battery is separated from the worse charging state as soon as possible, and then the charging power is gradually increased.
Further, the second heating process may include acquiring a variation value of the second temperature parameter within a preset time interval, and controlling the heating power of the second heating process according to the variation value. When the battery is heated, the influence caused by the heating of the battery needs to be considered, so that the heating rate of the battery needs to be controlled, and the heating power in the second heating program can be regulated and controlled in real time according to the temperature change of the battery.
Similarly, the second heating program may further include obtaining total heating power information of the battery, and controlling the heating power of the second heating program according to the total heating power information. The battery may have a plurality of heating sources, for example, the battery itself generates heat when charging, or the battery is actively heated by a heating device such as a heating wire, and not only the heating power of the active heating but also the comprehensive heating power of the battery need to be considered when heating, so as to avoid the problem caused by the battery being heated too fast. In the above embodiment, the battery has the first heater module provided in the first region and the second heater module provided in the second region, and two independent heater modules are provided, so that it is possible to perform targeted control for different usage scenarios.
For example, when the ambient temperature is less than-10 ℃, the temperature of the second zone is close to the ambient temperature, also less than-10 ℃, at which time the second heating module is activated; if the vehicle is just stopped from the running state (for example, the vehicle runs to a charging place to be charged), the inside of the battery is continuously supplied with power and releases heat because the vehicle is always in the running state, the temperature of the first area is higher than 0 ℃, the first heating module is in a more ideal charging state, and the first heating module is not started. And because the second heating module can eliminate the battery cooling caused by the ambient temperature, the first heating module is not started all the time.
For another example, when the ambient temperature is less than-10 ℃, the temperature of the second zone is close to the ambient temperature, also less than-10 ℃, at which time the second heating module is activated; if the vehicle is in a halt state for a long time, the temperature of the first area is basically equal to that of the second area, and the first heating module is started, namely the first heating module and the second heating module heat simultaneously, so that the temperature of the battery is increased as soon as possible. After heating for a certain time, the temperature of the second area is raised relatively low due to direct heat exchange with the environment, the temperature of the first area is raised relatively high due to no heat exchange with the environment, and the heating modules in different partitions are independently adjusted according to the specific temperatures of the first area and the second area.
In short, the first heating program corresponds to a heating program in a severe environment, and only part of the batteries and/or the batteries are heated with a lower heating power; the second heating program is a heating program corresponding to a severe environment, which heats all the batteries and/or heats the batteries with a higher heating power. For example, in the above-described embodiment in which the first and second heating modules are provided, the first heating program is started by the first heating module, the second heating module is not started, and the second heating program is started by both the first and second heating modules.
In addition, the second heating module can be started in advance according to the running information of the vehicle. For example, when the ambient temperature is lower than-10 ℃, the inside of the battery continuously supplies power and releases heat during the running process of the vehicle, the temperature of the first area is higher than 0 ℃ and is in a more ideal charging state, and the temperature of the second area is lower than-10 ℃ because the heat exchange is directly carried out with the environment. And the vehicle has received the information that will charge at this moment, for example the navigation information in the middle of the car machine shows that the vehicle is about to go to the district that charges, and at this moment, the vehicle can open the second heating module in the operation process to preheat the battery. When the vehicle runs to a charging place, the vehicle can be directly charged in a more ideal charging state.
The first heating module can be a heating device such as an electric heating wire arranged inside the battery, and the second heating module can be a heating device such as a heating wire wrapped outside the battery pack.
In one embodiment, the state information of the vehicle comprises the running state, the accumulated running time length, the shutdown time length and the like of the vehicle, when the running state of the vehicle is shutdown, the accumulated running time length is longer, and the shutdown time length is shorter, the vehicle can be considered to be just shutdown, and the temperature of a battery pack of the vehicle is considered to be higher at the moment; when the running state of the vehicle is shutdown and the shutdown time is long, the vehicle can be considered to be stopped for a period of time, and the temperature of the vehicle battery pack is considered to be low at the moment. It should be noted that the state information of the vehicle should be used as an auxiliary judgment, for example, when the vehicle is just stopped, if the second charging process is performed, the heating power may be adaptively reduced.
In one embodiment, the first area and the second area may be divided according to partitions of the battery, partition information is correspondingly marked on different partitions, and corresponding partition information may be directly acquired when the state parameter of the battery is acquired. For example, in some current electric vehicles, batteries are partitioned according to functions of the batteries, and in this case, the first region and the second region should be partitioned according to the functional classification of the batteries, rather than simply partitioning according to spatial positions of the batteries. For another example, the battery may be divided into an inner region and an outer region according to the inner layer and the outer layer, the inner region is identified with an inner region identification signal, the outer region is identified with an outer region identification signal, and the partition of the battery may be determined according to the obtained identification signal when the state parameter of the battery is obtained. It is understood that the number of battery partitions may be two or more. In one embodiment, the first region is an upper half of the battery pack, and the second region is a lower half of the battery pack. Generally, the battery pack is disposed at the bottom of the vehicle, the upper half of the battery pack is closer to the cabin, and the lower half of the battery pack is directly exposed to the external environment. Because the upper half part is close to the cabin, when the vehicle stops after running, the residual heat in the cabin can play a certain heating or heat preservation role on the upper half part of the battery pack, and compared with the battery pack directly exposed to the environment, the heat dissipation speed of the battery pack in the upper half part is slower, and the temperature is also slower. Likewise, for cells arranged in other ways, the first region and the second region may also be divided according to the rate of heat dissipation.
It can be understood that, in the above embodiments, the temperature of the battery is raised to control the temperature of the battery, and in other embodiments, a person skilled in the art may also lower the temperature of the battery by the above method according to actual needs to control the temperature.
As shown in fig. 2, an embodiment of the second aspect of the present invention provides a system for quickly supplementing energy to a new energy vehicle at a low temperature, including:
an obtaining module 10, configured to obtain a state parameter of a battery;
the first execution module 21, if the state parameter belongs to the first target type, performing charging by using a first charging program;
the second execution module 22, if the status parameter belongs to the second target type, performing charging by using a second charging program;
a third executing module 23, configured to perform charging according to a third charging procedure if the state parameter belongs to a third target type;
wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter.
In one embodiment, the system for quickly supplementing energy of the new energy automobile under the low temperature condition provided by the embodiment of the second aspect of the invention applies the method for quickly supplementing energy of the new energy automobile under the low temperature condition provided by the embodiment of the first aspect of the invention.
In one embodiment, the battery includes a first heating module and a second heating module. The first heating module can be a heating device such as an electric heating wire arranged inside the battery, and the second heating module can be a heating device such as a heating wire wrapped outside the battery pack. The battery may include two or more heating modules.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (10)

1. A method for quickly supplementing energy to a new energy automobile under a low-temperature condition is characterized by comprising the following steps:
acquiring state parameters of a battery;
if the state parameter belongs to the first target type, charging by using a first charging program;
if the state parameter belongs to a second target type, charging by using a second charging program;
if the state parameter belongs to a third target type, charging by a third charging program;
wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter.
2. The method for rapidly supplementing energy to the new energy automobile under the low temperature condition according to claim 1, wherein if the state parameter belongs to a first target type, the charging is performed according to a first charging program, and the method comprises the following steps:
and if the first temperature parameter and the second temperature parameter are both greater than or equal to a first preset temperature, charging with first power.
3. The method for rapidly supplementing energy to the new energy automobile under the low temperature condition according to claim 1, wherein if the state parameter belongs to a second target type, the charging is performed according to a second charging program, which includes:
and if the first temperature parameter is less than the first preset temperature, heating the battery by using a first heating program, and charging by using second charging power.
4. The method for rapidly supplementing energy to the new energy automobile under the low-temperature condition according to claim 3, wherein the first heating program comprises the following steps:
acquiring a change value of a first temperature parameter within a preset time interval, and controlling the heating power of a first heating program according to the change value;
and/or acquiring charging stage information of the battery, and controlling the heating power of the first heating program according to the charging stage information.
5. The method for rapidly supplementing energy to the new energy automobile under the low-temperature condition according to claim 1, wherein if the state parameter belongs to a third target type, the charging is performed according to a third charging program, which includes:
and if the second temperature parameter is less than the second preset temperature, heating the battery by using a second heating program, and charging by using third charging power.
6. The method for rapidly supplementing energy to the new energy automobile under the low-temperature condition according to claim 5, wherein the second heating program comprises the following steps:
acquiring a change value of a second temperature parameter within a preset time interval, and controlling the heating power of a second heating program according to the change value;
and/or acquiring total heating power information of the battery, and controlling the heating power of the second heating program according to the total heating power information.
7. The method for rapidly supplementing energy to the new energy automobile under the low-temperature condition according to claim 1, wherein the step of obtaining state parameters of the battery comprises the following steps:
and acquiring partition information of the battery.
8. The method for rapidly supplementing energy to the new energy automobile under the low-temperature condition according to claim 1, before acquiring the state parameters of the battery, further comprising:
state information of the vehicle is acquired.
9. The utility model provides a new energy automobile is quick energy supplement system under low temperature condition which characterized in that includes:
the acquisition module is used for acquiring the state parameters of the battery;
the first execution module is used for charging by a first charging program if the state parameter belongs to a first target type;
the second execution module is used for charging by a second charging program if the state parameter belongs to a second target type;
the third execution module is used for charging by a third charging program if the state parameter belongs to a third target type;
wherein the state parameters at least comprise a first temperature parameter and a second temperature parameter.
10. The new energy automobile rapid energy supplementing system under low temperature conditions as claimed in claim 9, wherein the battery comprises a first heating module and a second heating module, and the first heating module and the second heating module are used for executing a first heating program and a second heating program.
CN202211237877.3A 2022-10-11 2022-10-11 Method and system for quickly supplementing energy of new energy automobile under low-temperature condition Active CN115303090B (en)

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