CN115246344A - Vehicle-mounted battery heating control method and device - Google Patents
Vehicle-mounted battery heating control method and device Download PDFInfo
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- CN115246344A CN115246344A CN202210969964.1A CN202210969964A CN115246344A CN 115246344 A CN115246344 A CN 115246344A CN 202210969964 A CN202210969964 A CN 202210969964A CN 115246344 A CN115246344 A CN 115246344A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004590 computer program Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- HRANPRDGABOKNQ-ORGXEYTDSA-N (1r,3r,3as,3br,7ar,8as,8bs,8cs,10as)-1-acetyl-5-chloro-3-hydroxy-8b,10a-dimethyl-7-oxo-1,2,3,3a,3b,7,7a,8,8a,8b,8c,9,10,10a-tetradecahydrocyclopenta[a]cyclopropa[g]phenanthren-1-yl acetate Chemical compound C1=C(Cl)C2=CC(=O)[C@@H]3C[C@@H]3[C@]2(C)[C@@H]2[C@@H]1[C@@H]1[C@H](O)C[C@@](C(C)=O)(OC(=O)C)[C@@]1(C)CC2 HRANPRDGABOKNQ-ORGXEYTDSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B60L58/27—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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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)
Abstract
The application provides a vehicle-mounted battery heating control method and device, and the method comprises the following steps: when the vehicle-mounted battery is charged, judging whether the temperature of the battery accords with a preset heating interval; when the temperature of the battery accords with a preset heating interval, controlling a battery heater to heat the vehicle-mounted battery to a first heating closing temperature; judging whether the charging current is smaller than a first current threshold value or not; and when the charging current is smaller than the first current threshold, stopping heating the vehicle-mounted battery by the battery heater. Therefore, the method can charge the vehicle-mounted battery with the optimal charging current, so that the charging efficiency is improved.
Description
Technical Field
The application relates to the field of vehicle-mounted batteries, in particular to a vehicle-mounted battery heating control method and device.
Background
According to the existing communication protocol for dc charging, the output capacity (current) of the charging gun is sent to the bus only during the charging configuration phase and received by the BMS. This makes the output current of the charging gun currently unavailable to the vehicle end in real time during the dc charging. However, in practice, it is found that the situation may cause a situation that the output current of the dc charging pile may become smaller sometimes when the vehicle end does not know (for example, the single-gun output is started, the capacity is large; the vehicle is charged after a period of time, the double-gun output reduces the capacity of the single gun), so that the actual charging current cannot be increased any more due to a higher battery temperature (because the capacity of the gun end is limited); meanwhile, in this case, the electric heater also removes a part of electric power from the gun end, so that the actual rechargeable battery cannot reach an ideal state.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method and an apparatus for controlling heating of a vehicle-mounted battery, which can charge the vehicle-mounted battery with an optimal charging current, thereby improving charging efficiency.
The embodiment of the application provides a first aspect of a vehicle-mounted battery heating control method, which comprises the following steps:
when the vehicle-mounted battery is charged, judging whether the temperature of the battery accords with a preset heating interval;
when the battery temperature accords with the preset heating interval, controlling a battery heater to heat the vehicle-mounted battery to a first heating closing temperature;
judging whether the charging current is smaller than a first current threshold value or not;
and when the charging current is smaller than the first current threshold, stopping the battery heater from heating the vehicle-mounted battery continuously.
In the implementation process, the method can preferentially judge whether the temperature of the battery accords with a preset heating interval when the vehicle-mounted battery is charged; when the temperature of the battery accords with a preset heating interval, controlling a battery heater to heat the vehicle-mounted battery to a first heating closing temperature; then, judging whether the charging current is smaller than a first current threshold value; and when the charging current is smaller than the first current threshold value, the battery heater is stopped to continue heating the vehicle-mounted battery. Therefore, the embodiment can avoid excessive power consumption of the battery heater, so that the charging gun can charge the vehicle-mounted battery with optimal charging current, and the charging efficiency is improved.
Further, the method further comprises:
when the charging current is not less than the first current threshold, controlling the battery heater to continuously heat the vehicle-mounted battery to a second heating-off temperature;
judging whether the charging current is smaller than a second current threshold value;
and when the charging current is smaller than the second current threshold, stopping the battery heater from continuously heating the vehicle-mounted battery.
Further, the method further comprises:
and when the charging current is not less than the second current threshold, controlling the battery heater to continuously heat the vehicle-mounted battery to a third heating-off temperature.
Further, the method comprises:
judging whether the charging current changes or not;
and triggering and executing the step of judging whether the battery temperature accords with a preset heating interval or not when the charging current changes.
Further, the preset heating interval is a temperature interval which is greater than the minimum heating start temperature and less than the maximum heating stop temperature.
Further, the first heating-off temperature, the second heating-off temperature, and the third heating-off temperature are calculated based on different charging currents, a current ambient temperature, a battery level, and an optimal charging time.
A second aspect of the embodiments of the present application provides an on-vehicle battery heating control apparatus, including:
the first judgment unit is used for judging whether the temperature of the battery accords with a preset heating interval or not when the vehicle-mounted battery is charged;
the control unit is used for controlling the battery heater to heat the vehicle-mounted battery to a first heating closing temperature when the temperature of the battery accords with the preset heating interval;
the second judging unit is used for judging whether the charging current is smaller than the first current threshold value or not;
the control unit is further configured to stop the battery heater from continuing to heat the vehicle-mounted battery when the charging current is smaller than the first current threshold.
In the implementation process, the device can judge whether the temperature of the battery accords with a preset heating interval or not through the first judging unit when the vehicle-mounted battery is charged; when the battery temperature accords with the preset heating interval, a control unit controls a battery heater to heat the vehicle-mounted battery to a first heating closing temperature; judging whether the charging current is smaller than a first current threshold value or not through a second judging unit; and stopping the battery heater from continuously heating the vehicle-mounted battery through a control unit when the charging current is smaller than the first current threshold. Therefore, the embodiment can avoid excessive power consumption of the battery heater, so that the charging gun can charge the vehicle-mounted battery with optimal charging current, and further improve the charging efficiency.
Further, the vehicle-mounted battery heating control device further includes:
the control unit is further used for controlling the battery heater to continuously heat the vehicle-mounted battery to a second heating-off temperature when the charging current is not smaller than the first current threshold;
a third judging unit, configured to judge whether the charging current is smaller than a second current threshold;
the control unit is further configured to stop the battery heater from continuing to heat the vehicle-mounted battery when the charging current is smaller than the second current threshold.
Further, the control unit is further configured to control the battery heater to continue heating the vehicle-mounted battery to a third heating-off temperature when the charging current is not less than the second current threshold.
Further, the vehicle-mounted battery heating control device further includes:
a fourth judging unit, configured to judge whether the charging current changes;
the first judging unit is specifically configured to judge whether the battery temperature meets a preset heating interval when the charging current changes.
Further, the preset heating interval is a temperature interval which is greater than the minimum heating start temperature and less than the maximum heating stop temperature.
Further, the first heating-off temperature, the second heating-off temperature, and the third heating-off temperature are calculated based on different charging currents, a current ambient temperature, a battery level, and an optimal charging time.
A third aspect of the embodiments of the present application provides an electronic device, including a memory and a processor, where the memory is used for storing a computer program, and the processor runs the computer program to make the electronic device execute the vehicle-mounted battery heating control method according to any one of the first aspect of the embodiments of the present application.
A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, which stores computer program instructions, and when the computer program instructions are read and executed by a processor, the computer program instructions execute the vehicle-mounted battery heating control method according to any one of the first aspect of the embodiments of the present application.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic flow chart of a vehicle-mounted battery heating control method according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a vehicle-mounted battery heating control device according to an embodiment of the present application;
fig. 3 is a diagram illustrating an influence of a temperature of a lithium ion power battery on a charging current of the battery according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not construed as indicating or implying relative importance.
Example 1
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for controlling heating of a vehicle-mounted battery according to an embodiment of the present invention. The vehicle-mounted battery heating control method comprises the following steps:
s101, when the vehicle-mounted battery is charged, judging whether the temperature of the battery accords with a preset heating interval, and if so, executing a step S102; if not, the flow is ended.
In this embodiment, the preset heating interval is a temperature interval greater than the minimum heating start temperature and less than the maximum heating stop temperature.
In this embodiment, the method sets upper and lower battery temperature limits during dc charging.
(1) When the battery temperature is lower than TBAT _ THD _ MIN (i.e., minimum heating start temperature), the heating should be started by ignoring BAT _ thff _ ONE, BAT _ thff _ TWO, and BAT _ thff _ THR.
(2) When the battery temperature is above TBAT _ THD _ MAX (i.e., the maximum heat shutdown temperature), ignoring TBAT _ THDON _ ONE, TBAT _ THDON _ TWO, TBAT _ THDON _ THR, the heating should be shutdown.
And S102, controlling the battery heater to heat the vehicle-mounted battery to a first heating closing temperature.
S103, judging whether the charging current is smaller than a first current threshold value, if so, executing a step S104; if not, steps S105 to S106 are executed.
And S104, stopping heating the vehicle-mounted battery by the battery heater, and ending the flow.
And S105, controlling the battery heater to continuously heat the vehicle-mounted battery to a second heating closing temperature.
S106, judging whether the charging current is smaller than a second current threshold value, if so, executing a step S107; if not, executing step S108;
and S107, stopping the battery heater to continuously heat the vehicle-mounted battery, and ending the flow.
And S108, controlling the battery heater to continuously heat the vehicle-mounted battery to a third heating closing temperature.
In this embodiment, the first heating-off temperature, the second heating-off temperature, and the third heating-off temperature are calculated based on different charging currents, the current ambient temperature, the battery power, and the optimal charging time.
In the present embodiment, the SOC (battery state of charge) unit of the method is%, the time unit is min, and the temperature unit is ℃.
In this embodiment, the charging time index is classified into the following 2 types of scenes:
Wherein DISPSOC is display SOC; λ 1+ λ 2=1, λ 1 and λ 2 are both greater than zero, and the specific allocation is determined by the whole vehicle factory.
For example, the policy enforcement of the method comprises the following steps:
step 1: the maximum charging current IMAX _ DCDCHG of the power battery mounted on the vehicle during direct current charging is found.
Step 2: the IMAX _ DCDCHG is subjected to grading, and three grades are taken as an example.
First, IMAX _ DCDCHG _ ONE = IMAX _ DCDCHG ψ ONE;
second, IMAX _ DCDCHG _ TWO = IMAX _ DCDCHG × ψ TWO;
third gear, IMAX _ DCDCHG _ THR = IMAX _ DCDCHG
Wherein 1 > psi TWO > psi ONE > 0, and the specific values of psi ONE and psi TWO are determined by the whole automobile factory. The general suggestion that the two can not be too close, and the psi ONE setting can not be too small, can refer to the charging pile condition with the lowest capability in the industry.
In the present embodiment, the method for calculating the first heating off temperature, the second heating off temperature, and the third heating off temperature is as follows:
(1) and (4) selecting a charging pile with the charging capacity close to but not higher than IMAX _ DCDCHG _ ONE at the environment temperature of-12 ℃. Based on the above-described scene 1 and scene 2, the battery heating thresholds TBAT _ THDON _ ONE and TBAT _ thoff _ ONE are found so that FUNCTARGET _ ONE = λ 1 × time _dcchg1_one + λ 2 × time _dcchg2 _oneis minimized.
Wherein, TIME _ DCCHG1_ ONE is the charging TIME of scene 1 in the first gear;
TIME _ DCCHG2_ ONE is the charging TIME of scene 2 in the first gear.
TBAT _ THDON _ ONE is a first heating starting temperature for starting the battery to heat during the direct current charging period corresponding to the first gear;
TBAT _ once _ ONE is a first heating off temperature at which the battery heating is turned off during the dc charging period corresponding to the first gear.
(2) And (4) selecting a charging pile with the charging capacity close to but not higher than IMAX _ DCDCHG _ TWO at the environment temperature of-12 ℃. Based on the above-described scene 1 and scene 2, the battery heating thresholds TBAT _ THDON _ TWO and TBAT _ THDOFF _ TWO are found so that FUNCTARGET _ TWO = λ 1 × time _dcchg1_two + λ 2 × time _dcchg2_ TWO is minimized.
Wherein, TIME _ DCCHG1_ TWO is the charging TIME of scene 1 at the second gear;
TIME _ DCCHG2_ TWO is the charging TIME of scene 2 at the second gear.
TBAT _ THDON _ TWO is a second heating starting temperature for starting the battery to heat during the direct current charging period corresponding to the second gear;
TBAT _ thoff _ TWO is a second heating-off temperature at which the battery heating is turned off during the dc charging period corresponding to the second gear.
(3) And the environment temperature is-12 ℃, and a charging pile with charging capability higher than IMAX _ DCDCHG _ THR is selected. Based on the above-described scene 1 and scene 2, the battery heating thresholds TBAT _ THDON _ THR and TBAT _ thff _ THR are found so that FUNCTARGET _ THR = λ 1 × time _dcchg1_thr + λ 2 × time _dcchg2 _thris minimized.
Wherein TIME _ DCCHG1_ THR is the charging TIME of scene 1 in the third gear;
TIME _ DCCHG2_ THR is the charging TIME of scene 2 in the third gear.
TBAT _ THDON _ THR is a third heating starting temperature for starting the battery to heat during the direct current charging period corresponding to the third gear;
TBAT _ thoff _ THR is a third heating off temperature at which the battery heating is turned off during the dc charging period corresponding to the third gear.
As an optional implementation, the method further comprises:
judging whether the charging current changes or not;
and when the charging current changes, triggering and judging whether the temperature of the battery meets a preset heating interval.
Referring to fig. 3, it can be seen from fig. 3 that as the temperature increases, the battery charging current increases. Based on this, reasonable battery heating strategy can promote charging current, shortens charging time.
In this embodiment, the execution subject of the method may be a computing device such as a computer and a server, and is not limited in this embodiment.
In this embodiment, an execution subject of the method may also be an intelligent device such as a smart phone and a tablet computer, which is not limited in this embodiment.
Therefore, the vehicle-mounted battery heating control method described in the embodiment can be implemented with a reasonable battery heating strategy, can improve the charging current, and can shorten the charging time.
Example 2
Referring to fig. 2, fig. 2 is a schematic structural diagram of a vehicle-mounted battery heating control device provided in this embodiment. As shown in fig. 2, the vehicle-mounted battery heating control device includes:
the first judging unit 210 is configured to judge whether the battery temperature meets a preset heating interval when the vehicle-mounted battery is charged;
the control unit 220 is configured to control the battery heater to heat the vehicle-mounted battery to a first heating-off temperature when the battery temperature meets a preset heating interval;
a second determining unit 230, configured to determine whether the charging current is smaller than the first current threshold;
and the control unit 220 is further configured to stop the battery heater from continuing to heat the vehicle-mounted battery when the charging current is smaller than the first current threshold.
As an optional implementation, the vehicle-mounted battery heating control device further includes:
the control unit 220 is further configured to control the battery heater to continue heating the vehicle-mounted battery to a second heating-off temperature when the charging current is not less than the first current threshold;
a third determining unit 240, configured to determine whether the charging current is smaller than the second current threshold;
and the control unit 220 is further configured to stop the battery heater from continuing to heat the vehicle-mounted battery when the charging current is smaller than the second current threshold.
As an alternative embodiment, the control unit 220 is further configured to control the battery heater to continue heating the vehicle-mounted battery to the third heating-off temperature when the charging current is not less than the second current threshold.
As an optional implementation, the vehicle-mounted battery heating control device further includes:
a fourth judging unit 250 for judging whether the charging current is changed;
the first determining unit 210 is specifically configured to determine whether the battery temperature meets a preset heating interval when the charging current changes.
In this embodiment, the preset heating interval is a temperature interval greater than the minimum heating start temperature and less than the maximum heating stop temperature.
In this embodiment, the first heating-off temperature, the second heating-off temperature, and the third heating-off temperature are calculated based on different charging currents, the current ambient temperature, the battery power, and the optimal charging time.
In this embodiment, the description of embodiment 1 may be referred to for the explanation of the vehicle-mounted battery heating control device, and details are not repeated in this embodiment.
It can be seen that, the vehicle-mounted battery heating control device described in the embodiment can reasonably realize the battery heating strategy, improve the charging current and shorten the charging time.
The embodiment of the application provides electronic equipment, which comprises a memory and a processor, wherein the memory is used for storing a computer program, and the processor runs the computer program to enable the electronic equipment to execute the vehicle-mounted battery heating control method in the embodiment 1 of the application.
An embodiment of the present application provides a computer-readable storage medium, which stores computer program instructions, and when the computer program instructions are read and executed by a processor, the computer program instructions execute the vehicle-mounted battery heating control method in embodiment 1 of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative and, for example, the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A vehicle-mounted battery heating control method, characterized by comprising:
when the vehicle-mounted battery is charged, judging whether the temperature of the battery accords with a preset heating interval;
when the battery temperature accords with the preset heating interval, controlling a battery heater to heat the vehicle-mounted battery to a first heating closing temperature;
judging whether the charging current is smaller than a first current threshold value or not;
and when the charging current is smaller than the first current threshold value, stopping the battery heater from continuously heating the vehicle-mounted battery.
2. The vehicular battery heating control method according to claim 1, characterized by further comprising:
when the charging current is not less than the first current threshold, controlling the battery heater to continuously heat the vehicle-mounted battery to a second heating-off temperature;
judging whether the charging current is smaller than a second current threshold value;
and when the charging current is smaller than the second current threshold, stopping the battery heater from continuously heating the vehicle-mounted battery.
3. The vehicular battery heating control method according to claim 2, characterized by further comprising:
and when the charging current is not less than the second current threshold, controlling the battery heater to continuously heat the vehicle-mounted battery to a third heating-off temperature.
4. The vehicular battery heating control method according to claim 1, characterized by further comprising:
judging whether the charging current changes or not;
and triggering and executing the step of judging whether the battery temperature accords with a preset heating interval or not when the charging current changes.
5. The vehicle-mounted battery heating control method according to claim 1, wherein the preset heating interval is a temperature interval that is greater than a minimum heating start temperature and less than a maximum heating off temperature.
6. The vehicle-mounted battery heating control method according to claim 3, characterized in that the first heating-off temperature, the second heating-off temperature, and the third heating-off temperature are calculated based on different charging currents, a current ambient temperature, a battery level, and an optimal charging time.
7. An on-vehicle battery heating control device, characterized by comprising:
the first judgment unit is used for judging whether the temperature of the battery accords with a preset heating interval or not when the vehicle-mounted battery is charged;
the control unit is used for controlling the battery heater to heat the vehicle-mounted battery to a first heating closing temperature when the temperature of the battery accords with the preset heating interval;
the second judging unit is used for judging whether the charging current is smaller than the first current threshold value or not;
the control unit is further configured to stop the battery heater from continuing to heat the vehicle-mounted battery when the charging current is smaller than the first current threshold.
8. The vehicle-mounted battery heating control device according to claim 7, characterized by further comprising:
the control unit is further used for controlling the battery heater to continuously heat the vehicle-mounted battery to a second heating-off temperature when the charging current is not smaller than the first current threshold;
a third determining unit, configured to determine whether the charging current is smaller than a second current threshold;
the control unit is further configured to stop the battery heater from continuing to heat the vehicle-mounted battery when the charging current is smaller than the second current threshold.
9. An electronic apparatus, characterized in that the electronic apparatus includes a memory for storing a computer program and a processor that runs the computer program to cause the electronic apparatus to execute the in-vehicle battery heating control method according to any one of claims 1 to 6.
10. A readable storage medium, in which computer program instructions are stored, which, when read and executed by a processor, perform the in-vehicle battery heating control method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969964.1A CN115246344A (en) | 2022-08-12 | 2022-08-12 | Vehicle-mounted battery heating control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969964.1A CN115246344A (en) | 2022-08-12 | 2022-08-12 | Vehicle-mounted battery heating control method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115246344A true CN115246344A (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210969964.1A Pending CN115246344A (en) | 2022-08-12 | 2022-08-12 | Vehicle-mounted battery heating control method and device |
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| Country | Link |
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| CN (1) | CN115246344A (en) |
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2022
- 2022-08-12 CN CN202210969964.1A patent/CN115246344A/en active Pending
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