CN111301220A - Charging control method and system for electric automobile - Google Patents
Charging control method and system for electric automobile Download PDFInfo
- Publication number
- CN111301220A CN111301220A CN202010152401.4A CN202010152401A CN111301220A CN 111301220 A CN111301220 A CN 111301220A CN 202010152401 A CN202010152401 A CN 202010152401A CN 111301220 A CN111301220 A CN 111301220A
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery pack
- charging
- preset temperature
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a charging control method and a charging control system for an electric automobile, wherein the method comprises the following steps: when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system; judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not; if so, entering a preheating mode and preheating the battery pack; when the lowest temperature of the battery pack is higher than the second preset temperature, the preheating mode is closed, the charging mode is entered, and the battery pack is charged, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun portion, and the second preset temperature is higher than the first preset temperature. The invention considers the phenomenon of temperature difference inside and outside the battery pack at the initial charging stage, can effectively avoid the problems of lithium separation, short circuit, fire and the like caused by the fact that the temperature of the battery core-spun part does not reach the temperature value for safe charging during charging, and ensures that the low-temperature charging is safer and more reliable.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a charging control method and system for an electric automobile.
Background
With the rapid development of the automobile industry and the continuous improvement of living conditions of people, automobiles become one of indispensable transportation tools for people to go out. The automobile keeping amount is increased year by year, and more people own private cars. The electric automobile is the development direction of the automobile industry at present.
For safety reasons, when charging the battery pack, the temperature of the battery pack needs to be higher than a chargeable temperature, for example, the temperature of the battery pack needs to be higher than 0 ℃, so that safe charging can be performed. However, there is a temperature difference between the inside and the outside of the battery, and the temperature sensor of the battery pack is usually disposed at the tab of the battery pack, that is, the temperature detected by the temperature sensor is the temperature at the tab, which results in that although the temperature detected by the temperature sensor reaches the chargeable temperature, the temperature at the core of the battery pack may not reach the chargeable temperature, and at this time, if charging is performed, problems such as lithium separation, even short circuit, fire and the like may occur, and there is a great potential safety hazard.
Disclosure of Invention
Therefore, an object of the present invention is to provide a charging control method for an electric vehicle, so as to solve the problem of potential safety hazard in low-temperature charging.
An electric vehicle charging control method comprises the following steps:
when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system;
judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
if so, entering a preheating mode and preheating the battery pack;
when the lowest temperature of the battery pack is higher than the second preset temperature, the preheating mode is closed, the charging mode is entered, and the battery pack is charged, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun portion, and the second preset temperature is higher than the first preset temperature.
According to the electric vehicle charging control method provided by the invention, a preheating function is added, when the lowest temperature of the battery pack is lower than a first preset temperature, a preheating mode is entered, the battery pack is preheated, when the lowest temperature of the battery pack is higher than a second preset temperature, the preheating mode is closed, and a charging mode is entered.
In addition, according to the charging control method for the electric vehicle of the present invention, the following additional features may be provided:
further, entering a preheating mode, wherein the step of preheating the battery specifically comprises:
closing the total negative relay and the charging relay through the battery management system;
sending a charging current request to a power grid through a battery management system;
after receiving the charging current, disconnecting the total negative relay through the battery management system;
a heating current request is sent to the grid through the battery management system to cause the heater to preheat the battery pack.
Further, the method further comprises:
when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system;
judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
if not, entering a charging mode to charge the battery pack.
Further, the method further comprises:
when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system;
judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
if so, entering a preheating mode and preheating the battery pack;
continuously monitoring a minimum temperature of the battery pack in the preheating mode;
and if the lowest temperature of the battery pack is monitored to be less than or equal to a second preset temperature, maintaining the preheating mode.
Further, the first preset temperature is 5 ℃ and the second preset temperature is 10 ℃.
The invention also aims to provide a charging control system of an electric vehicle, so as to solve the problem of potential safety hazard in low-temperature charging.
An electric vehicle charging control system comprising:
the detection module is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judging module is used for judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
the preheating starting module is used for entering a preheating mode and preheating the battery pack if the lowest temperature of the battery pack is lower than a first preset temperature;
and the preheating closing module is used for closing the preheating mode and entering the charging mode if the lowest temperature of the battery pack is greater than a second preset temperature so as to charge the battery pack, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun part, and the second preset temperature is greater than the first preset temperature.
According to the electric vehicle charging control system provided by the invention, the preheating function is added, when the lowest temperature of the battery pack is lower than a first preset temperature, a preheating mode is entered, the battery pack is preheated, when the lowest temperature of the battery pack is higher than a second preset temperature, the preheating mode is closed, and a charging mode is entered.
In addition, according to the charging control system of the electric vehicle of the present invention, the following additional features may be provided:
further, the preheating starting module is specifically configured to:
closing the total negative relay and the charging relay through the battery management system;
sending a charging current request to a power grid through a battery management system;
after receiving the charging current, disconnecting the total negative relay through the battery management system;
a heating current request is sent to the grid through the battery management system to cause the heater to preheat the battery pack.
Further, the system further comprises a charging module:
the detection module is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judgment module is used for judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
the charging module is used for entering a charging mode to charge the battery pack if the lowest temperature of the battery pack is not less than a first preset temperature.
Further, the system further comprises a continuous monitoring module and a maintaining module:
the detection module is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judgment module is used for judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
the preheating starting module is used for entering a preheating mode and preheating the battery pack if the lowest temperature of the battery pack is lower than a first preset temperature;
the continuous monitoring module is used for continuously monitoring the lowest temperature of the battery pack in the preheating mode;
the maintaining module is used for maintaining the preheating mode if the lowest temperature of the battery pack is monitored to be less than or equal to a second preset temperature.
Further, the first preset temperature is 5 ℃ and the second preset temperature is 10 ℃.
Drawings
The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of an electric vehicle charging control method according to a first embodiment of the invention;
fig. 2 is a block diagram of a charging control system for an electric vehicle according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but 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.
Referring to fig. 1, a charging control method for an electric vehicle according to a first embodiment of the present invention includes steps S101 to S104.
And S101, detecting the temperature of the battery pack through a battery management system when the gun is plugged for charging.
When a user starts to charge a battery pack of the electric automobile by using the plug gun, the temperature of the battery pack is detected through a Battery Management System (BMS), and the temperature sensor is arranged at a lug of the battery pack, so that the temperature of the battery pack detected by the battery management system is actually the temperature at the lug of the battery pack.
S102, judging whether the lowest temperature of the battery pack is smaller than a first preset temperature or not.
The first preset temperature is predetermined based on a difference value between the temperature of the lug of the battery pack and the temperature of the core of the battery pack, and can be specifically set according to specific parameters of the battery pack, so that when the temperature detected by the battery management system reaches the first preset temperature (namely when the temperature of the lug of the battery pack reaches the first preset temperature), the temperature of the core of the battery pack reaches the lowest temperature at which charging can be started. For example, when the first preset temperature is 5 ℃ and the temperature detected by the battery management system is greater than or equal to 5 ℃ (i.e. the temperature at the tab of the battery pack is greater than or equal to 5 ℃), the temperature of the battery pack core part will be not less than 0 ℃, and safe charging can be ensured.
And S103, if yes, entering a preheating mode and preheating the battery pack.
Wherein, if the temperature that battery management system detected is less than 5 ℃ (the temperature of battery package utmost point ear department is less than 5 ℃), correspondingly, the temperature of battery package core portion can be less than 0 ℃, at this moment, can get into the mode of preheating, preheats the battery package, guarantees that the holistic temperature of battery package can reach the temperature of safe charging.
If the temperature detected by the battery management system is greater than or equal to 5 ℃ (that is, the temperature at the pole ear of the battery pack is greater than or equal to 5 ℃), correspondingly, the temperature of the core part of the battery pack is greater than 0 ℃, and at this moment, the battery pack can be directly charged in a charging mode.
Specifically, entering a preheating mode, and the step of preheating the battery specifically includes:
the total negative relay and the charging relay are closed through the battery management system, and the total negative relay and the charging relay are closed so as to be capable of being connected to a power grid;
the request for charging current is sent to the grid via the battery management system, the charging current being a relatively small current, for example 5A, for the purpose of only drawing current.
After receiving the charging current, disconnecting the total negative relay through the battery management system, and keeping the charging relay closed;
the heating current request is sent to the power grid through the battery management system, so that the battery pack is preheated by the heater, the heating current value in the heating current request is determined according to the heater of the automobile, for example, 10A, and after the battery management system sends the heating current request to the power grid, the power grid outputs corresponding current, so that the battery pack is preheated by the heater.
And S104, when the lowest temperature of the battery pack is higher than a second preset temperature, closing the preheating mode, and entering a charging mode to charge the battery pack, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun part, and the second preset temperature is higher than the first preset temperature.
The second preset temperature is also set according to specific parameters of the battery pack, and when the BMS detects that the lowest temperature of the battery pack is higher than the second preset temperature, the preheating is completed, and the battery pack can be safely charged. For example, the second preset temperature is 10 ℃.
In addition, in the preheating mode, the BMS continuously monitors the minimum temperature of the battery pack; if the lowest temperature of the battery pack is monitored to be less than or equal to a second preset temperature, the preheating mode is maintained until the lowest temperature of the battery pack reaches the second preset temperature.
According to the electric automobile charging control method provided by the embodiment, the preheating function is added, when the lowest temperature of the battery pack is lower than a first preset temperature, the preheating mode is entered, the battery pack is preheated, when the lowest temperature of the battery pack is higher than a second preset temperature, the preheating mode is closed, the charging mode is entered, as the first preset temperature and the second preset temperature are determined based on the difference value between the temperature at the lug of the battery pack and the temperature of the battery pack core-spun part, namely, the phenomenon that the temperature difference exists inside and outside the battery pack is considered at the initial charging stage, the problems of lithium precipitation, short circuit, fire and the like caused by the fact that the temperature of the battery pack core-spun part does not reach the temperature value of safe charging during charging can be effectively avoided, and the low-temperature charging is safer and more reliable.
In addition, in the preheating mode, the BMS requests different current values for different stages, so as to avoid the potential safety hazard of charging caused by the lithium separation phenomenon of the battery at low temperature, and further enhance the safety.
Referring to fig. 2, based on the same inventive concept, a charging control system for an electric vehicle according to a second embodiment of the present invention includes:
the detection module 10 is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judging module 20 is configured to judge whether the lowest temperature of the battery pack is lower than a first preset temperature;
the preheating starting module 30 is used for entering a preheating mode to preheat the battery pack if the lowest temperature of the battery pack is lower than a first preset temperature;
and the preheating closing module 40 is used for closing the preheating mode and entering the charging mode to charge the battery pack if the lowest temperature of the battery pack is greater than a second preset temperature, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun part, and the second preset temperature is greater than the first preset temperature.
In this embodiment, the preheating starting module 30 is specifically configured to:
closing the total negative relay and the charging relay through the battery management system;
sending a charging current request to a power grid through a battery management system;
after receiving the charging current, disconnecting the total negative relay through the battery management system;
a heating current request is sent to the grid through the battery management system to cause the heater to preheat the battery pack.
In this embodiment, the system further includes a charging module 50:
the detection module 10 is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judging module 20 is configured to judge whether the lowest temperature of the battery pack is less than a first preset temperature;
the charging module 50 is configured to enter a charging mode to charge the battery pack if the lowest temperature of the battery pack is not less than a first preset temperature.
In this embodiment, the system further includes a continuous monitoring module 60 and a maintenance module 70:
the detection module 10 is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judging module 20 is configured to judge whether the lowest temperature of the battery pack is less than a first preset temperature;
the preheating starting module 30 is configured to enter a preheating mode to preheat the battery pack if the lowest temperature of the battery pack is lower than a first preset temperature;
the continuous monitoring module 60 is used for continuously monitoring the lowest temperature of the battery pack in the preheating mode;
the maintaining module 70 is configured to maintain the preheating mode if the monitored lowest temperature of the battery pack is less than or equal to a second preset temperature.
In this embodiment, the first preset temperature is 5 ℃ and the second preset temperature is 10 ℃.
According to the electric automobile charge control system that this embodiment provided, the preheating function has been increased, when the minimum temperature of battery package is less than first preset temperature, get into preheating mode, preheat the battery package, when the minimum temperature of battery package is greater than the second preset temperature, close preheating mode, get into charging mode, because first preset temperature and second preset temperature are based on the difference definite of battery package utmost point ear department temperature and battery core portion temperature, just consider this phenomenon of temperature difference in the battery package inside and outside charging initial stage promptly, can effectively avoid when charging because of the battery core portion temperature does not reach the precipitation lithium that the temperature value of safe charging arouses, the short circuit, the scheduling problem of catching fire, make low temperature charge safe and reliable more.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit of a logic gate circuit specifically used for realizing a logic function for a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A charging control method for an electric vehicle is characterized by comprising the following steps:
when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system;
judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
if so, entering a preheating mode and preheating the battery pack;
when the lowest temperature of the battery pack is higher than the second preset temperature, the preheating mode is closed, the charging mode is entered, and the battery pack is charged, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun portion, and the second preset temperature is higher than the first preset temperature.
2. The electric vehicle charging control method according to claim 1, wherein entering a preheating mode, the step of preheating the battery specifically comprises:
closing the total negative relay and the charging relay through the battery management system;
sending a charging current request to a power grid through a battery management system;
after receiving the charging current, disconnecting the total negative relay through the battery management system;
a heating current request is sent to the grid through the battery management system to cause the heater to preheat the battery pack.
3. The electric vehicle charging control method according to claim 1, further comprising:
when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system;
judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
if not, entering a charging mode to charge the battery pack.
4. The electric vehicle charging control method according to claim 1, further comprising:
when the gun is plugged for charging, the temperature of the battery pack is detected through the battery management system;
judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
if so, entering a preheating mode and preheating the battery pack;
continuously monitoring a minimum temperature of the battery pack in the preheating mode;
and if the lowest temperature of the battery pack is monitored to be less than or equal to a second preset temperature, maintaining the preheating mode.
5. The method according to claim 1, wherein the first preset temperature is 5 ℃ and the second preset temperature is 10 ℃.
6. An electric vehicle charging control system, comprising:
the detection module is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judging module is used for judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
the preheating starting module is used for entering a preheating mode and preheating the battery pack if the lowest temperature of the battery pack is lower than a first preset temperature;
and the preheating closing module is used for closing the preheating mode and entering the charging mode if the lowest temperature of the battery pack is greater than a second preset temperature so as to charge the battery pack, wherein the first preset temperature and the second preset temperature are determined based on the difference value between the temperature of the lug of the battery pack and the temperature of the battery core-spun part, and the second preset temperature is greater than the first preset temperature.
7. The electric vehicle charging control system of claim 6, wherein the preheating starting module is specifically configured to:
closing the total negative relay and the charging relay through the battery management system;
sending a charging current request to a power grid through a battery management system;
after receiving the charging current, disconnecting the total negative relay through the battery management system;
a heating current request is sent to the grid through the battery management system to cause the heater to preheat the battery pack.
8. The electric vehicle charging control system of claim 6, further comprising a charging module:
the detection module is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judgment module is used for judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
the charging module is used for entering a charging mode to charge the battery pack if the lowest temperature of the battery pack is not less than a first preset temperature.
9. The electric vehicle charging control system of claim 6, further comprising a continuous monitoring module and a maintenance module:
the detection module is used for detecting the temperature of the battery pack through the battery management system when the gun is plugged for charging;
the judgment module is used for judging whether the lowest temperature of the battery pack is lower than a first preset temperature or not;
the preheating starting module is used for entering a preheating mode and preheating the battery pack if the lowest temperature of the battery pack is lower than a first preset temperature;
the continuous monitoring module is used for continuously monitoring the lowest temperature of the battery pack in the preheating mode;
the maintaining module is used for maintaining the preheating mode if the lowest temperature of the battery pack is monitored to be less than or equal to a second preset temperature.
10. The electric vehicle charging control system of claim 6, wherein the first predetermined temperature is 5 ℃ and the second predetermined temperature is 10 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152401.4A CN111301220A (en) | 2020-03-06 | 2020-03-06 | Charging control method and system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152401.4A CN111301220A (en) | 2020-03-06 | 2020-03-06 | Charging control method and system for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111301220A true CN111301220A (en) | 2020-06-19 |
Family
ID=71152245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010152401.4A Pending CN111301220A (en) | 2020-03-06 | 2020-03-06 | Charging control method and system for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111301220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370847A (en) * | 2021-08-04 | 2021-09-10 | 特瓦特能源科技有限公司 | Battery safety monitoring method and related equipment |
| CN113782872A (en) * | 2021-09-15 | 2021-12-10 | 珠海冠宇电源有限公司 | Lithium battery pack and heating method thereof |
| CN115347652A (en) * | 2022-10-18 | 2022-11-15 | 江西江铃集团新能源汽车有限公司 | Low-temperature charging optimization method and system for lithium battery and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013128791A1 (en) * | 2012-03-01 | 2013-09-06 | 株式会社デンソー | Temperature adjustment device |
| CN104600815B (en) * | 2015-02-16 | 2017-01-11 | 安徽江淮汽车股份有限公司 | Electromobile charging system and charging control method |
| US20180123363A1 (en) * | 2016-11-02 | 2018-05-03 | Samsung Sdi Co., Ltd. | Battery pack |
| CN108879617A (en) * | 2017-12-26 | 2018-11-23 | 深圳市仕威新能源有限公司 | Electric motor intelligent control method, device, dynamical system and electric car |
| CN110007700A (en) * | 2019-04-09 | 2019-07-12 | 中山百得厨卫有限公司 | A kind of circuit control formula oven |
| CN209592247U (en) * | 2019-03-06 | 2019-11-05 | 力神动力电池系统有限公司 | The acquisition structure of battery core temperature in a kind of battery case |
| CN110808434A (en) * | 2019-09-25 | 2020-02-18 | 浙江合众新能源汽车有限公司 | Heating control method and device for power battery during low-temperature charging of automobile |
-
2020
- 2020-03-06 CN CN202010152401.4A patent/CN111301220A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013128791A1 (en) * | 2012-03-01 | 2013-09-06 | 株式会社デンソー | Temperature adjustment device |
| CN104600815B (en) * | 2015-02-16 | 2017-01-11 | 安徽江淮汽车股份有限公司 | Electromobile charging system and charging control method |
| US20180123363A1 (en) * | 2016-11-02 | 2018-05-03 | Samsung Sdi Co., Ltd. | Battery pack |
| CN108879617A (en) * | 2017-12-26 | 2018-11-23 | 深圳市仕威新能源有限公司 | Electric motor intelligent control method, device, dynamical system and electric car |
| CN209592247U (en) * | 2019-03-06 | 2019-11-05 | 力神动力电池系统有限公司 | The acquisition structure of battery core temperature in a kind of battery case |
| CN110007700A (en) * | 2019-04-09 | 2019-07-12 | 中山百得厨卫有限公司 | A kind of circuit control formula oven |
| CN110808434A (en) * | 2019-09-25 | 2020-02-18 | 浙江合众新能源汽车有限公司 | Heating control method and device for power battery during low-temperature charging of automobile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370847A (en) * | 2021-08-04 | 2021-09-10 | 特瓦特能源科技有限公司 | Battery safety monitoring method and related equipment |
| CN113782872A (en) * | 2021-09-15 | 2021-12-10 | 珠海冠宇电源有限公司 | Lithium battery pack and heating method thereof |
| CN113782872B (en) * | 2021-09-15 | 2023-03-10 | 珠海冠宇电源有限公司 | Lithium battery pack and heating method thereof |
| CN115347652A (en) * | 2022-10-18 | 2022-11-15 | 江西江铃集团新能源汽车有限公司 | Low-temperature charging optimization method and system for lithium battery and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108099685B (en) | Lithium ion battery system for electric vehicle and charging and heating method | |
| US9981567B2 (en) | Battery controller | |
| CN111301220A (en) | Charging control method and system for electric automobile | |
| CN109398155B (en) | Battery pack charging thermal management control method, related device and system | |
| KR101673822B1 (en) | Apparatus and method for detecting relay welding in green car | |
| CN112297950A (en) | Charging and discharging human-computer interaction control method and device, vehicle and storage medium | |
| CN103682519A (en) | Method for heating low-temperature environment of electric vehicle | |
| CN111284356A (en) | Mobile energy storage charging pile and control method thereof | |
| CN209813744U (en) | Bidirectional charger and vehicle-to-vehicle charging system | |
| CN104094466A (en) | Method for temperature regulation of at least one battery element, battery and motor vehicle with such a battery | |
| CN102479983A (en) | charging control method and device for power battery of electric automobile | |
| CN103855748A (en) | Vehicle charging system and method | |
| JP2017508436A (en) | Precharge and voltage supply system for DC-AC inverter | |
| CN104600761B (en) | The control method and the automobile with it of inverter electric capacity precharge | |
| CN113085654A (en) | Automatic power shortage prevention control method and system for low-voltage battery of electric vehicle | |
| CN108832686B (en) | Charging circuit and charging circuit detection method | |
| CN107128179A (en) | DC transformer starting control device of electric automobile | |
| CN106685012B (en) | Lithium battery charging control system and working method thereof | |
| KR102062706B1 (en) | Battery pack and control method thereof | |
| CN112659954A (en) | BMS-based electric vehicle quick-charging heating control system and method | |
| CN105048010A (en) | Method and system for monitoring battery pack of electric automobile | |
| CN111398743B (en) | Whole-vehicle high-voltage loop insulation detection method and device for new energy vehicle | |
| WO2024169570A1 (en) | Vehicle-mounted charging control method and apparatus, vehicle, system, and storage medium | |
| CN111497672B (en) | Control method and device for vehicle charging thermal management | |
| CN111313490B (en) | Method, device, medium and system for charging and discharging battery stack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200619 |