CN105751910B - A battery module discharge method and device for a vehicle-mounted dischargeable energy storage system - Google Patents
A battery module discharge method and device for a vehicle-mounted dischargeable energy storage system Download PDFInfo
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- CN105751910B CN105751910B CN201610108642.2A CN201610108642A CN105751910B CN 105751910 B CN105751910 B CN 105751910B CN 201610108642 A CN201610108642 A CN 201610108642A CN 105751910 B CN105751910 B CN 105751910B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004146 energy storage Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000001046 rapid expansion of supercritical solution Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
-
- 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
-
- 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
- B60L2240/60—Navigation input
- B60L2240/66—Ambient conditions
- B60L2240/662—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
- 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
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Embodiment of the present invention disclose it is a kind of it is vehicle-mounted can discharge energy-storage system battery modules charging method and device.This method comprises: detection battery modules temperature value and vehicle external environment temperature value；When the vehicle external environment temperature value lower than scheduled low ambient temperature threshold value or is higher than scheduled high ambient temperature threshold value, or, the battery modules temperature value enables the battery modules limit power discharge lower than scheduled battery modules low temperature threshold value or when being higher than scheduled battery modules high temperature threshold value.Embodiment of the present invention passes through detection battery modules temperature and environment temperature, the discharge capability of limitation battery modules under extreme conditions, to guarantee the service life of battery modules.In addition, by carrying out grade control to limit performance number limit power discharge can be more finely controlled, to be further ensured that the service life of battery modules in embodiment of the present invention.
Description
Technical field
The present invention relates to automobile technical field, more particularly, to it is a kind of it is vehicle-mounted can discharge energy-storage system battery modules
Charging method and device.
Background technique
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.Electric car is as a kind of
Reduce the new-energy automobile of consumption of petroleum, low pollution, low noise, it is considered to be solve the important way of energy crisis and environmental degradation
Diameter.Hybrid vehicle combines the advantage of pure electric automobile and traditional combustion engine automobile, is meeting vehicle dynamic quality requirement
Under the premise of being required with continual mileage, effectively improve fuel economy, reduce discharge, it is considered to be current energy conservation with subtract
One of active path of row.
In current electric car, battery management system executes battery thermal management for battery modules.It is vehicle-mounted to discharge
Energy-storage system (Rechargeable Energy Storage System, RESS) system can discharge and can provide electric energy
Energy storage system.RESS system can promote battery security, and reduce cost.
In the heat management control of discharge program of current vehicle-mounted RESS system, it is based only upon the internal temperature control of battery modules
The discharge power of battery modules.Fig. 1 is heat management control of discharge schematic diagram in the prior art.As seen from Figure 1, in the prior art
In, as long as the internal temperature of battery modules is between low temperature threshold value A and high temperature threshold value B, battery modules can expire function
Rate electric discharge, and it is not intended that the influence of environment temperature.
However, battery modules also suffer from the influence of environment temperature in actual use.Under extreme ambient temperature, if
The discharge capability of battery modules is not limited in advance, it is likely that influence the service life of battery modules.
Summary of the invention
The purpose of the present invention is to propose to it is a kind of it is vehicle-mounted can discharge energy-storage system battery modules charging method and device, thus
Just the service life of battery modules is improved.
In embodiments of the present invention, it is a kind of it is vehicle-mounted can discharge energy-storage system battery modules charging method, comprising:
Detect battery modules temperature value and vehicle external environment temperature value；
When the vehicle external environment temperature value lower than scheduled low ambient temperature threshold value or is higher than scheduled high ambient temperature thresholding
Value, alternatively, when the battery modules temperature value lower than scheduled battery modules low temperature threshold value or is higher than scheduled battery modules
When high temperature threshold value, the battery modules limit power discharge is enabled.
Preferably, this method further include: the first limit performance number of setting and the second limit performance number, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value and the battery modules temperature value is lower than institute
Battery modules low temperature threshold value is stated, enables the battery modules according to the second limit performance number limit power discharge；
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value, and the battery modules temperature value is higher than
The battery modules low temperature threshold value and when being lower than the battery modules high temperature threshold value, enables the battery modules according to described in
First limit performance number limits power discharge.
Preferably, this method further include: the first limit performance number of setting and the second limit performance number, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value and the battery modules temperature value is higher than institute
When stating battery modules low temperature threshold value, the battery modules are enabled according to the second limit performance number limit power discharge；
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value, and the battery modules temperature value is higher than
The battery modules low temperature threshold value and when being lower than the battery modules high temperature threshold value, enables the battery modules according to described in
First limit performance number limits power discharge.
Preferably, this method further include: the first limit performance number of setting and the second limit performance number, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value and the battery modules temperature value is lower than institute
Battery modules low temperature threshold value is stated, enables the battery modules according to the second limit performance number limit power discharge；
When the battery modules temperature value is lower than the battery modules low temperature threshold value, and the vehicle external environment temperature value
When higher than the low ambient temperature threshold value and being lower than the high ambient temperature threshold value, the battery modules are enabled according to described first
It limits performance number and limits power discharge.
Preferably, this method further include: the first limit performance number of setting and the second limit performance number, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value and the battery modules temperature value is higher than institute
When stating battery modules low temperature threshold value, the battery modules are enabled according to the second limit performance number limit power discharge；
When the battery modules temperature value is higher than the battery modules high temperature threshold value, and the vehicle external environment temperature value
When higher than the low ambient temperature threshold value and being lower than the high ambient temperature threshold value, the battery modules are enabled according to described first
It limits performance number and limits power discharge.
In embodiments of the present invention, it is a kind of it is vehicle-mounted can discharge energy-storage system battery modules electric discharge device, comprising:
Battery modules temperature detecting module, for detecting battery modules temperature value；
Vehicle external environment temperature detecting module, for detecting vehicle external environment temperature value；
Discharge module, for lower than scheduled low ambient temperature threshold value or being higher than scheduled when the vehicle external environment temperature value
High ambient temperature threshold value, alternatively, when the battery modules temperature value lower than scheduled battery modules low temperature threshold value or is higher than pre-
When fixed battery modules high temperature threshold value, the battery modules limit power discharge is enabled.
Preferably, discharge module, for the first limit performance number and the second limit performance number to be arranged, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value and the battery modules temperature value is lower than institute
Battery modules low temperature threshold value is stated, enables the battery modules according to the second limit performance number limit power discharge；
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value, and the battery modules temperature value is higher than
The battery modules low temperature threshold value and when being lower than the battery modules high temperature threshold value, enables the battery modules according to described in
First limit performance number limits power discharge.
Preferably, discharge module, for the first limit performance number and the second limit performance number to be arranged, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value and the battery modules temperature value is higher than institute
When stating battery modules low temperature threshold value, the battery modules are enabled according to the second limit performance number limit power discharge；
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value, and the battery modules temperature value is higher than
The battery modules low temperature threshold value and when being lower than the battery modules high temperature threshold value, enables the battery modules according to described in
First limit performance number limits power discharge.
Preferably, discharge module, for the first limit performance number and the second limit performance number to be arranged, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value and the battery modules temperature value is lower than institute
Battery modules low temperature threshold value is stated, enables the battery modules according to the second limit performance number limit power discharge；
When the battery modules temperature value is lower than the battery modules low temperature threshold value, and the vehicle external environment temperature value
When higher than the low ambient temperature threshold value and being lower than the high ambient temperature threshold value, the battery modules are enabled according to described first
It limits performance number and limits power discharge.
Preferably, discharge module, for the first limit performance number and the second limit performance number to be arranged, wherein the second limit performance number is small
In the first limit performance number；Wherein:
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value and the battery modules temperature value is higher than institute
When stating battery modules low temperature threshold value, the battery modules are enabled according to the second limit performance number limit power discharge；
When the battery modules temperature value is higher than the battery modules high temperature threshold value, and the vehicle external environment temperature value
When higher than the low ambient temperature threshold value and being lower than the high ambient temperature threshold value, the battery modules are enabled according to described first
It limits performance number and limits power discharge.
It can be seen from the above technical proposal that in embodiments of the present invention, detecting battery modules temperature value and vehicle outer ring
Border temperature value；When the vehicle external environment temperature value lower than scheduled low ambient temperature threshold value or is higher than scheduled high ambient temperature thresholding
Value, alternatively, when battery modules temperature value lower than scheduled battery modules low temperature threshold value or is higher than scheduled battery modules high temperature
When threshold value, enables battery modules and limit power discharge.As it can be seen that embodiment of the present invention detection battery modules temperature and environment temperature
Degree, and the discharge capability of battery modules under extreme conditions is limited, to guarantee the service life of battery modules.
Moreover, embodiment of the present invention can more subtly execute limit power by carrying out grade control to limit performance number
Electric discharge, to be further ensured that the service life of battery modules.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is heat management control of discharge schematic diagram in the prior art.
Fig. 2 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules charging method flow chart.
Fig. 3 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules charging method overall flow
Figure.
Fig. 4 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules charging method logical process
Schematic diagram.
Fig. 5 is that performance number is limited according to embodiment of the present invention regardless of the control of discharge schematic diagram of grade.
Fig. 6 is to limit the graduate limit power discharge flow chart of performance number according to embodiment of the present invention.
Fig. 7 is to limit the graduate control of discharge schematic diagram of performance number according to embodiment of the present invention.
Fig. 8 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules electric discharge device structure chart.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
It is found by the applicant that: battery modules in actual use can be influenced by ambient temperature.Under extreme ambient temperature, battery
The biggish temperature difference will occur in module internal, to influence the service life of battery modules.It is lacked in view of present in the prior art
It falls into, embodiment of the present invention is based on battery modules temperature and environment temperature to control battery modules discharge power, to limit simultaneously
Discharge capability of the battery modules processed under extreme environmental conditions, to guarantee the service life of battery modules.
Fig. 2 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules charging method flow chart.
As shown in Fig. 2, this method comprises:
Step 201: detection battery modules temperature value and vehicle external environment temperature value.
Herein, battery modules temperature sensor and vehicle external environment temperature sensor can be respectively set.Battery modules temperature
Degree sensor is used to detect the internal temperature values of battery modules, and vehicle external environment temperature sensor is used to detect the vehicle external environment of automobile
Temperature value.
Either battery modules temperature detection or vehicle external environment temperature detection, the temperature that embodiment of the present invention can use
Sensor is various in style.For example, contact type temperature sensor and non-contact temperature sensor two can be divided into greatly by measurement method
Class；It is divided into thermal resistance temperature sensor and thermocouple temperature sensor according to sensor material and electron component characteristic.Specifically,
Temperature sensor can be using thermocouple, thermistor, platinum resistance (RTD) and temperature detection integrated circuit, etc..
The temperature sensor that foregoing detailed description embodiment of the present invention can use, those skilled in the art can anticipate
Know, this description is only exemplary, is not intended to limit the present invention the protection scope of embodiment.
Step 202: when vehicle external environment temperature value lower than scheduled low ambient temperature threshold value or is higher than scheduled high ambient temperature
Threshold value, alternatively, when battery modules temperature value lower than scheduled battery modules low temperature threshold value or is higher than scheduled battery modules
When high temperature threshold value, enables battery modules and limit power discharge.
As it can be seen that embodiment of the present invention detection battery modules temperature and environment temperature, and battery modules are limited in extreme item
Discharge capability under part, to guarantee the service life of battery modules.
In embodiments of the present invention, the limit performance number of multiple grades can be set.When vehicle external environment temperature and battery mould
When group temperature is all abnormal, battery modules are enabled with the limit performance number of lowest level and execute limit power discharge.When vehicle external environment temperature
In degree and battery modules temperature one it is abnormal, and when another is normal, enable battery modules with the limit performance number of higher level
Execute limit power discharge.Moreover, applicant, which compares vehicle external environment temperature in view of battery modules temperature, has more significant impact
The factor, thus can vehicle external environment temperature is abnormal and battery modules temperature it is normal when limit performance number, be set greater than electricity
Pond module temperature is abnormal and limit performance number when vehicle external environment temperature is normal.
In one embodiment, this method further include: the first limit performance number of setting and the second limit performance number, wherein second
Performance number is limited less than the first limit performance number；Wherein:
When vehicle external environment temperature value is lower than low ambient temperature threshold value and battery modules temperature value is lower than battery modules low temperature door
Limit value enables battery modules according to second and limits performance number limit power discharge；
When vehicle external environment temperature value be lower than low ambient temperature threshold value, and battery modules temperature value be higher than battery modules low temperature
Threshold value and be lower than battery modules high temperature threshold value when, battery modules according to first limit performance number limit power discharge.
In one embodiment, this method further include: the first limit performance number of setting and the second limit performance number, wherein second
Performance number is limited less than the first limit performance number；Wherein:
When vehicle external environment temperature value is lower than low ambient temperature threshold value and battery modules temperature value is higher than battery modules low temperature door
When limit value, battery modules are enabled according to second and limit performance number limit power discharge；
When vehicle external environment temperature value be higher than high ambient temperature threshold value, and battery modules temperature value be higher than battery modules low temperature
Threshold value and be lower than battery modules high temperature threshold value when, enable battery modules according to it is described first limit performance number limit power discharge.
In one embodiment, this method further include: the first limit performance number of setting and the second limit performance number, wherein second
Performance number is limited less than the first limit performance number；Wherein:
When vehicle external environment temperature value is higher than high ambient temperature threshold value and battery modules temperature value is lower than battery modules low temperature door
Limit value enables battery modules according to second and limits performance number limit power discharge；
When battery modules temperature value be lower than battery modules low temperature threshold value, and vehicle external environment temperature value be higher than low ambient temperature
Threshold value and be lower than high ambient temperature threshold value when, enable battery modules according to first limit performance number limit power discharge.
In one embodiment, this method further include: the first limit performance number of setting and the second limit performance number, wherein second
Performance number is limited less than the first limit performance number；Wherein:
When vehicle external environment temperature value is higher than high ambient temperature threshold value and battery modules temperature value is higher than battery modules low temperature door
When limit value, battery modules are enabled according to second and limit performance number limit power discharge；
When battery modules temperature value be higher than battery modules high temperature threshold value, and vehicle external environment temperature value be higher than low ambient temperature
Threshold value and be lower than high ambient temperature threshold value when, enable battery modules according to first limit performance number limit power discharge.
Fig. 3 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules charging method overall flow
Figure.
As shown in figure 3, this method comprises:
Step 301: detection battery modules temperature value and vehicle external environment temperature value.
Step 302: judging whether battery modules temperature value is higher than preset battery modules low temperature threshold value and is lower than
Preset battery modules high temperature threshold value, and vehicle external environment temperature value be higher than preset low ambient temperature threshold value and
When lower than preset high ambient temperature threshold value, if so, 303 are thened follow the steps, it is no to then follow the steps 304.
The present invention preset battery modules low temperature threshold value, battery modules high temperature threshold value, low ambient temperature threshold value and
High ambient temperature threshold value.
When battery modules temperature value is higher than battery modules low temperature threshold value and is lower than battery modules high temperature threshold value, assert
The internal temperature of battery modules is within normal interval.When vehicle external environment temperature value is higher than low ambient temperature threshold value and is lower than ring
When the high temperature threshold value of border, it can be assumed that vehicle external environment temperature is within normal interval.
After the internal temperature for having assert battery modules is within normal interval, further by vehicle external environment temperature value
It is compared with low ambient temperature threshold value and high ambient temperature threshold value.Only further assert that vehicle external environment temperature is in normal area
Between within, i.e. the internal temperature of battery modules and when all normal vehicle external environment temperature just executes step 303, no to then follow the steps
304。
Step 303: enabled battery modules full power electric discharge, and terminate this process.
Herein, when determining the internal temperature and all normal vehicle external environment temperature of battery modules in step 302, electricity is enabled
The electric discharge of Chi Mo group full power.In full power electric discharge, battery modules can execute electric discharge according to specified full power.Depending on electricity
The design parameter of the concrete model of Chi Mo group, full power electric discharge may have difference, and the present invention repeats no more this.
Step 304: enabled battery modules limit power discharge, and terminate this process.
Herein, when in step 302 determine battery modules internal temperature and vehicle external environment temperature at least one not
When normal, the not enabled battery modules full power electric discharge of the present invention, but enabled battery modules limit power discharge.
In limit power discharge, battery modules do not execute electric discharge according to specified full power, and are less than specified full function
Rate executes electric discharge.For example, the half multiplying power that can be discharged based on full power is discharged.Citing, when the full power of battery modules
When electric discharge is 10C, the power discharge of battery modules can be limited as 5C.
As it can be seen that even if the internal temperature of battery modules is normal, as long as vehicle external environment temperature is abnormal, embodiment of the present invention
Just do not allow battery modules full power to discharge, but limit battery modules and limit power discharge.Therefore, the present invention passes through in extreme ring
The discharge capability that battery modules are limited at a temperature of border, can extend the service life of battery modules.Battery modules discharge process can
With include driving motor or to charger electric discharge, etc..The present invention is to this and is not limited.
As it can be seen that even if the internal temperature of battery modules is normal, as long as vehicle external environment temperature is abnormal, embodiment of the present invention
Just limitation battery modules limit full power electric discharge.Therefore, the electric discharge that the present invention passes through the limitation battery modules under extreme ambient temperature
Ability can extend the service life of battery modules.
Specifically: the specific situation that battery modules limit power includes at least at least one of following:
(1), when vehicle external environment temperature value is lower than low ambient temperature threshold value, battery modules is enabled and limit power discharge.
(2), when vehicle external environment temperature value is higher than high ambient temperature threshold value, battery modules is enabled and limit power discharge.
(3), when battery modules temperature value is lower than battery modules low temperature threshold value, battery modules is enabled and limit power discharge.
(4), when battery modules temperature value is higher than battery modules high temperature threshold value, battery modules is enabled and limit power discharge.
Based on foregoing description, Fig. 4 be according to embodiment of the present invention it is vehicle-mounted can the battery modules of discharge energy-storage system put
Method for electrically logical process schematic diagram.
In embodiments of the present invention, the power source for providing discharge power for battery modules can be Electrical Discharge Machine, can also be with
It is recovering energy during motor braking, the present invention is to this and is not limited.
In Fig. 4, battery modules high temperature threshold value A, battery modules low temperature threshold value B are preset.For example, battery modules
High temperature threshold value A can be 40 degree；Battery modules low temperature threshold value B can be 0 degree.Moreover, preset low ambient temperature threshold value C and
High ambient temperature threshold value D.For example, low ambient temperature threshold value C is -10 degree, high ambient temperature threshold value D is 50 degree.Furthermore it is assumed that electric
The electric discharge of Chi Mo group full power is 10C.
When battery modules temperature is higher than 40 degree, limit power discharge is executed to battery modules.For example, working as battery modules temperature
When being 50 degree, discharge-rate is reduced for 5C.
When battery modules temperature is lower than 0 degree, limit power discharge is executed to battery modules.For example, working as battery modules temperature
When spending for -3, discharge-rate is reduced for 5C.
When vehicle external environment temperature is higher than 50 degree, limit power discharge is executed to battery modules.For example, working as vehicle external environment temperature
When being 55 degree, discharge-rate is reduced for 5C.
When vehicle external environment temperature is spent lower than -10, limit power discharge is executed to battery modules.For example, working as vehicle external environment temperature
When degree is spent for -12, discharge-rate is reduced for 5C.
When battery modules temperature is higher than 0 degree and is lower than 40 degree, if vehicle external environment temperature is higher than 50 degree, to battery modules
Execute limit power discharge.For example, discharge-rate is lowered when battery modules temperature is 20 degree and vehicle external environment temperature is 55 degree
For 5C.
When battery modules temperature is higher than 0 degree and is lower than 40 degree, if vehicle external environment temperature is spent lower than -10, to battery mould
Group executes limit power discharge.For example, when battery modules temperature is 20 degree and vehicle external environment temperature spends for -15, discharge-rate quilt
It is reduced to 5C.
When battery modules temperature is higher than 0 degree and is lower than 40 degree, if vehicle external environment temperature is higher than -10 degree and is lower than 50
Degree executes full power electric discharge to battery modules.For example, when battery modules temperature is 20 degree and vehicle external environment temperature is 20 degree,
Discharge-rate is 10C.
Embodiment of the present invention is described with specific temperature value and discharge-rate above, those skilled in the art can
To be not intended to limit the scope of protection of the present invention, it is realized that this description is only exemplary.
Fig. 5 is that performance number is limited according to embodiment of the present invention regardless of the control of discharge schematic diagram of grade.As seen from Figure 5, no
It is same as the prior art, embodiment of the present invention needs the internal temperature of battery modules to be in low temperature threshold value A and high temperature threshold value B
Between, and environment temperature is between low temperature threshold value C and high temperature threshold value D, and battery modules can just be discharged with full power.
As it can be seen that embodiment of the present invention is based on battery modules temperature and environment temperature simultaneously to control battery modules electric discharge function
Rate, to limit discharge capability of the battery modules under extreme environmental conditions, it is ensured that the service life of battery modules.
Fig. 6 is to limit the graduate limit power discharge flow chart of performance number according to embodiment of the present invention.In Fig. 6, setting
The limit performance number of three ranks.Wherein, (the vehicle external environment temperature when vehicle external environment temperature and all abnormal battery modules temperature
Value is lower than scheduled low ambient temperature threshold value or is higher than scheduled high ambient temperature threshold value, and battery modules temperature is lower than predetermined
Battery modules low temperature threshold value or be higher than scheduled battery modules high temperature threshold value), enable battery modules according to minimum limit
Performance number limits power discharge.Moreover, by vehicle external environment temperature is abnormal and limit performance number when battery modules temperature is normal, setting
Limit performance number when vehicle external environment temperature is normal to be abnormal greater than battery modules temperature.
As seen from Figure 6, this method comprises:
Step 601: the first limit of setting performance number, the second limit performance number and third limit performance number, and wherein third limits performance number
Minimum, the second limit performance number is less than the first limit performance number.
Step 602: judging whether vehicle external environment temperature and battery modules temperature are all abnormal, if all abnormal, execute
Step 603, if at least one in vehicle external environment temperature and battery modules temperature is normal, 604 or step are thened follow the steps
605。
Step 603: enabled battery modules execute limit power discharge according to third limit performance number, and terminate this process.
Step 604: judge whether to meet following condition: vehicle external environment temperature is normal, and battery modules temperature is abnormal, if
It is to execute step 606, otherwise exit this process.
Step 605: judge whether to meet following condition: battery modules temperature is normal, and vehicle external environment temperature is abnormal, if
It is to execute step 607, otherwise exit this process.
Step 606: enabled battery modules limit performance number according to second and execute limit power discharge, exit this process.
Step 607: enabled battery modules limit performance number according to first and execute limit power discharge, exit this process.
Limit power discharge is illustrated by taking three limit performance number grades as an example above.Those skilled in the art will be appreciated that
Arrive, this grade be it is exemplary, be not intended to limit the scope of protection of the present invention.
Fig. 7 is to limit the graduate control of discharge schematic diagram of performance number according to embodiment of the present invention.In Fig. 7, have two
A limit performance number grade, the respectively first limit performance number and the second limit performance number, wherein the second limit performance number is less than the first limit function
Rate value.
As shown in fig. 7, being different from the prior art, embodiment of the present invention needs the internal temperature of battery modules to be in low temperature
Between threshold value A and high temperature threshold value B, and environment temperature is between low temperature threshold value C and high temperature threshold value D, battery mould
Group can just be discharged with full power.
Moreover, in the 5th restricted area, the second restricted area, third restricted area and the 7th restricted area, battery modules are enabled with the
Two limit performance number electric discharges.In the 6th restricted area, the 4th restricted area, the 8th restricted area and the first restricted area, enable battery modules with
First limit performance number electric discharge.Area is being worked normally, battery modules is being enabled and executes full power electric discharge.
Based on foregoing description, the invention also provides it is a kind of it is vehicle-mounted can discharge energy-storage system battery modules electric discharge device.
Fig. 8 be according to embodiment of the present invention it is vehicle-mounted can discharge energy-storage system battery modules electric discharge device structure chart.
As shown in figure 8, the device 800 includes:
Battery modules temperature detecting module 801, for detecting battery modules temperature value；
Vehicle external environment temperature detecting module 802, for detecting vehicle external environment temperature value；
Discharge module 803, for lower than scheduled low ambient temperature threshold value or being higher than pre- when the vehicle external environment temperature value
Fixed high ambient temperature threshold value, alternatively, when the battery modules temperature value is lower than scheduled battery modules low temperature threshold value or height
When scheduled battery modules high temperature threshold value, the battery modules limit power discharge is enabled.
In one embodiment, discharge module 803, for the first limit performance number and the second limit performance number to be arranged, wherein
Second limit performance number is less than the first limit performance number；Wherein:
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value and the battery modules temperature value is lower than institute
Battery modules low temperature threshold value is stated, enables the battery modules according to the second limit performance number limit power discharge；
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value, and the battery modules temperature value is higher than
The battery modules low temperature threshold value and when being lower than the battery modules high temperature threshold value, enables the battery modules according to described in
First limit performance number limits power discharge.
In one embodiment, discharge module 803, discharge module, for the first limit performance number and the second limit function to be arranged
Rate value, wherein the second limit performance number is less than the first limit performance number；Wherein:
When the vehicle external environment temperature value is lower than the low ambient temperature threshold value and the battery modules temperature value is higher than institute
When stating battery modules low temperature threshold value, the battery modules are enabled according to the second limit performance number limit power discharge；
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value, and the battery modules temperature value is higher than
The battery modules low temperature threshold value and when being lower than the battery modules high temperature threshold value, enables the battery modules according to described in
First limit performance number limits power discharge.
In one embodiment, discharge module 803, discharge module, for the first limit performance number and the second limit function to be arranged
Rate value, wherein the second limit performance number is less than the first limit performance number；Wherein:
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value and the battery modules temperature value is lower than institute
Battery modules low temperature threshold value is stated, enables the battery modules according to the second limit performance number limit power discharge；
When the battery modules temperature value is lower than the battery modules low temperature threshold value, and the vehicle external environment temperature value
When higher than the low ambient temperature threshold value and being lower than the high ambient temperature threshold value, the battery modules are enabled according to described first
It limits performance number and limits power discharge.
In one embodiment, discharge module 803, discharge module, for the first limit performance number and the second limit function to be arranged
Rate value, wherein the second limit performance number is less than the first limit performance number；Wherein:
When the vehicle external environment temperature value is higher than the high ambient temperature threshold value and the battery modules temperature value is higher than institute
When stating battery modules low temperature threshold value, the battery modules are enabled according to the second limit performance number limit power discharge；
When the battery modules temperature value is higher than the battery modules high temperature threshold value, and the vehicle external environment temperature value
When higher than the low ambient temperature threshold value and being lower than the high ambient temperature threshold value, the battery modules are enabled according to described first
It limits performance number and limits power discharge.
Can by embodiment of the present invention proposes it is vehicle-mounted can discharge energy-storage system battery modules charging method and device
It is applied in various types of new-energy automobiles, including pure electric automobile (BEV), hybrid vehicle (PHEV) or fuel cell
Automobile (FCEV), etc..
In conclusion in embodiments of the present invention, detecting battery modules temperature value and vehicle external environment temperature value；When described
Vehicle external environment temperature value is lower than scheduled low ambient temperature threshold value or is higher than scheduled high ambient temperature threshold value, alternatively, the electricity
Pond module temperature value is enabled lower than scheduled battery modules low temperature threshold value or when being higher than scheduled battery modules high temperature threshold value
The battery modules limit power discharge.Embodiment of the present invention limits battery by detection battery modules temperature and environment temperature
The discharge capability of mould group under extreme conditions, to guarantee the service life of battery modules.
Moreover, limit power can be more finely controlled by carrying out grade control to limit performance number in embodiment of the present invention
Electric discharge, to be further ensured that the service life of battery modules.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
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| CN102301561B (en) * | 2009-01-28 | 2015-03-11 | 住友重机械工业株式会社 | Hybrid working machine and electricity storage control apparatus |
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| JP5487675B2 (en) * | 2009-03-30 | 2014-05-07 | 富士電機株式会社 | Motor drive device and electric vehicle |
| US20130317690A1 (en) * | 2010-11-10 | 2013-11-28 | Nissan Motor Co., Ltd. | Diagnosis apparatus for vehicle battery |
| JP2013118724A (en) * | 2011-12-01 | 2013-06-13 | Toyota Motor Corp | Control device and control method |
| CN103413985B (en) * | 2013-07-29 | 2015-05-06 | 河南超威电源有限公司 | Environmental temperature-based quick charging method of lead-acid storage battery for electric motor car |
| JP6127825B2 (en) * | 2013-08-07 | 2017-05-17 | コベルコ建機株式会社 | Power storage device charge / discharge control device for construction machinery |
| CN105703025B (en) * | 2016-02-04 | 2019-11-29 | 北京长城华冠汽车科技股份有限公司 | A kind of the battery modules charging method and device of vehicle-mounted chargeable energy-storage system |
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