CN110422060A - Electric car and its charging method and device - Google Patents
Electric car and its charging method and device Download PDFInfo
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- CN110422060A CN110422060A CN201910716555.9A CN201910716555A CN110422060A CN 110422060 A CN110422060 A CN 110422060A CN 201910716555 A CN201910716555 A CN 201910716555A CN 110422060 A CN110422060 A CN 110422060A
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- electric car
- distance
- charging equipment
- battery pack
- charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—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]
-
- 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
- B60L58/25—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 controlling the electric load
-
- 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
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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
- 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
- B60L2240/549—Current
-
- 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
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/52—Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
-
- 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
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/54—Energy consumption estimation
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- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The application proposes a kind of electric car and its charging method and device, wherein method includes: to obtain the parameter of battery pack in electric car, and the present battery capacity of the battery pack is identified according to the parameter；Based on the present battery capacity, the default remaining capacity of the electric car and the first distance of the corresponding traveling of the default remaining capacity are obtained；The charging equipment within the scope of the electric automobile during traveling and the second distance of the electric car current location are obtained, and charging equipment is selected according to the first distance and the second distance, to realize the decaying for slowing down battery.
Description
Technical field
The present invention relates to electric vehicle engineering field more particularly to a kind of electric car and its charging method and devices.
Background technique
As new-energy automobile is gradually popularized, what new-energy automobile on the market generallyd use be ferric phosphate lithium cell and
Two kinds of ternary lithium battery, and ferric phosphate lithium cell is since energy density is low, gradually replaced ternary lithium battery.But any battery
All with the defect of restricted lifetime, and Sanyuanli battery also has defect unstable at high operating temperatures.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of charging method of electric car, slow down battery to realize
Decaying.
Second object of the present invention is to propose a kind of charging unit of electric car.
Third object of the present invention is to propose a kind of electric car.
Fourth object of the present invention is to propose a kind of computer readable storage medium.
In order to achieve the above object, first aspect present invention embodiment proposes a kind of charging method of electric car, including with
Lower step: the parameter of battery pack in electric car is obtained, the present battery capacity of the battery pack is identified according to the parameter；Base
In the present battery capacity, the default remaining capacity and the corresponding traveling of the default remaining capacity of the electric car are obtained
First distance；Obtain the second of charging equipment within the scope of the electric automobile during traveling and the electric car current location away from
From, and charging equipment is selected according to the first distance and the second distance.
According to one embodiment of present invention, the parameter for obtaining battery pack in electric car, knows according to the parameter
The present battery capacity of the not described battery pack, comprising: obtain the battery capacity attenuation degree curve of the battery pack and described
The history of battery pack uses temperature, running time；Obtain current environmental temperature locating for the electric car；According to the decaying
Curve, the history use temperature, the running time and the current environmental temperature, determine the present battery of the battery pack
Capacity.
According to one embodiment of present invention, described to be based on the present battery capacity, obtain the pre- of the electric car
If the first distance of remaining capacity and the corresponding traveling of the default remaining capacity, comprising: according to the present battery capacity and
Preset percentage obtains the default remaining capacity actually corresponding charge value；According to the current driving of electric car speed
Degree and the charge value calculate the first distance of the corresponding traveling of the default remaining capacity.
According to one embodiment of present invention, described to be set according to the first distance and second distance selection charging
It is standby, comprising: to extract the charging equipment that the second distance is less than or equal to the first distance；Judge in the charging equipment
Whether there is the first charging equipment of preset charged speed；If so, then being set first charging equipment as spare charging
It is standby；If it is not, using the charging equipment in addition to first charging equipment as the spare charging equipment.
According to one embodiment of present invention, the charging method of the electric car, further includes: by the spare charging
Second distance described in equipment is maximum to be used as target charging equipment.
According to one embodiment of present invention, the charging method of the electric car, further includes: detect the battery pack
Current Temperatures, and judge whether the Current Temperatures are in preset temperature section；If the non-default temperature of Current Temperatures
Section then controls vehicle parking.
According to one embodiment of present invention, the charging method of the electric car, further includes: obtain the battery pack
Current curve；When identifying that the curent change of the battery pack and the current curve are not inconsistent, according to the electric current
Change curve limits the electric current of the battery pack.
The charging method of electric car according to an embodiment of the present invention, can be according to the attenuation of battery pack to battery pack
Charging opportunity be adjusted, while also by select trickle charge charging equipment carry out charging avoid battery occur fast charge damage, energy
Battery is enough effectively reduced because of damage caused by charging behavior, slows down the rate of decay of battery pack.
In order to achieve the above object, second aspect of the present invention embodiment proposes a kind of charging unit of electric car, comprising: know
Other module identifies that the present battery of the battery pack holds according to the parameter for obtaining the parameter of battery pack in electric car
Amount；Computing module obtains the default remaining capacity of the electric car and described pre- for being based on the present battery capacity
If the first distance of the corresponding traveling of remaining capacity；Selecting module is set for obtaining the charging within the scope of the electric automobile during traveling
The standby second distance with the electric car current location, and set according to the first distance and second distance selection charging
It is standby.
In order to achieve the above object, third aspect present invention embodiment proposes a kind of electric car, including the electronic vapour
The charging unit of vehicle.
To achieve the goals above, fourth aspect present invention embodiment proposes a kind of computer readable storage medium,
On be stored with computer program, the charging method of the electric car is realized when which is executed by processor.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the charging method of the electric car of the embodiment of the present invention；
Fig. 2 is the flow chart of the charging method of the electric car of one embodiment of the invention
Fig. 3 is the flow chart of the charging method of the electric car of another embodiment of the present invention
Fig. 4 is the flow chart of the charging method of the electric car of another embodiment of the invention；
Fig. 5 is the flow chart of the charging method of the electric car of further embodiment of the present invention；
Fig. 6 is the flow chart of the charging method of the electric car of further embodiment of the present invention；
Fig. 7 is the block diagram of the charging unit of the electric car of the embodiment of the present invention；
Fig. 8 is the block diagram of the electric car of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
It should be noted that the service life of ternary lithium battery is generally in 5-6 or so, when this is because battery working, there are all
More " abrasions ".When battery discharge, internal chemical energy becomes electric energy release, and when charging, electric energy becomes chemical energy storage, lithium ion
It is ceaselessly embedded in inside battery, deviates from formation circulation.And during this, other than active material dissolution, electrolyte decomposition,
Electrode material will also face etching problem, and at the same time, the channel of lithium ion exchanged can form blocking feelings with being used for multiple times
Condition can not reach complete electric discharge, this phenomenon is cell decay so that the internal resistance of cell increases.
Based on this, present applicant proposes a kind of electric car and its charging method and devices, to pass through the day to battery
Normal charge and discharge behavior is controlled, to slow down the decaying of battery.
Below with reference to the accompanying drawings the electric car and its charging method and device of the embodiment of the present invention are described.
Fig. 1 is the flow chart of the charging method of the electric car of the embodiment of the present invention.As shown in Figure 1, the embodiment of the present invention
Electric car charging method, comprising the following steps:
S101: obtaining the parameter of battery pack in electric car, and the present battery capacity of battery pack is identified according to parameter.
Wherein, the parameter of battery pack can be used in temperature and traveling for vehicle using the history of battery pack progress when driving
Journey, and with the matched battery capacity attenuation degree curve of the battery.It should be understood that battery capacity attenuation degree curve can
Attenuation degree curve for producer according to the battery of road durability experiment testing and drawing under different situations.
According to one embodiment of present invention, the parameter for obtaining battery pack in electric car identifies battery pack according to parameter
Present battery capacity, as shown in Figure 2, comprising:
S201: the history of the battery capacity attenuation degree curve and battery pack that obtain battery pack uses temperature, when driving
Between.
S202: current environmental temperature locating for electric car is obtained.
S203: temperature, running time and current environmental temperature are used according to attenuation curve, history, determine working as battery pack
Preceding battery capacity.
Specifically, by vehicle network system, the real time data of this vehicle is back to cloud when user uses vehicle
End, by analyzing the state of vehicle in real time, including but not limited to battery service life (be accurate to point), region temperature, wet
Whether degree, duration, vehicle in some specific temperature and humidity regions occurred the informations parameter such as collision, maintenance, then will
These parameters carry out matching present battery capacity of the determining battery pack after overdamping with attenuation curve figure.
Such as by taking original state battery capacity is the battery of 60kwh as an example, the battery capacity of the battery is when the dough softening is 0
60kwh, with the increase of use time, cell decay, battery capacity increase with the dough softening and are reduced to 40kwh, 30kwh etc..
For example, 40 DEG C of vehicle first day under conditions, has continuously driven 30 minutes；Second day in 30 DEG C of conditions
Under, it has continuously driven 40 minutes；The preparation of third day travels under conditions of 40 DEG C, at this time can be by before before traveling
The sample data of acquisition predicts the cell decay degree of third day vehicle, obtains the present battery capacity of battery pack.
S102: being based on present battery capacity, and default remaining capacity and the default remaining capacity for obtaining electric car are corresponding
The first distance of traveling.
Wherein, the preset percentage that remaining capacity is present battery capacity is preset, it is preferable that the charging of ternary lithium battery is optimal
Default remaining capacity be 20%.
According to one embodiment of present invention, be based on present battery capacity, obtain the default remaining capacity of electric car with
And the first distance of the corresponding traveling of default remaining capacity, as shown in Figure 3, comprising:
S301: according to present battery capacity and preset percentage, default remaining capacity actually corresponding charge value is obtained.
S302: according to the current driving speed and charge value of electric car, the first of the corresponding traveling of remaining capacity is calculated
Distance.
Specifically, present battery capacity can be multiplied with percentage, it is real to calculate default remaining capacity ratio
The corresponding charge value in border, such as when battery capacity is 60kwh, presetting the corresponding charge value of remaining capacity 20% is 12kwh, and
For battery capacity in 40kwh, presetting the corresponding charge value of remaining capacity 20% is 8kwh.Then, according to the electricity being calculated
Value and the current driving speed (average overall travel speed etc. that can also be recorded according to the driving habit of driver) of electric car calculate
The first distance of the default corresponding traveling of remaining capacity, that is, charge value is capable of the first distance of supporting and running.
S103: obtaining the charging equipment within the scope of electric automobile during traveling and the second distance of electric car current location, and
Charging equipment is selected according to first distance and second distance.
It should be understood that information and electric car current location electric car current location can be determined according to the map
With the second distance between charging equipment each on map.
According to one embodiment of present invention, charging equipment is selected according to first distance and second distance, as shown in figure 4,
Include:
S401: the charging equipment that second distance is less than or equal to first distance is extracted.
S402: judge whether first charging equipment with preset charged speed in charging equipment.
If so, thening follow the steps S403；If it is not, executing step S404.
S403: using the first charging equipment as spare charging equipment.
S404: using the charging equipment in addition to the first charging equipment as spare charging equipment.
It should be noted that default remaining capacity is electric car in order to which the optimal charge for slowing down battery pack decaying is remaining
Electricity can charge to protect battery pack when the remaining capacity of battery pack is greater than default remaining capacity, therefore, second
The remaining capacity when charging equipment that distance is less than or equal to first distance meets electric automobile during traveling to charging equipment is still greater than
Or the requirement equal to default remaining capacity.
Since China is wideling popularize New-energy electric vehicle, in order to guarantee that the cruising ability of electric car can be provided with greatly
Therefore the charging equipment that at least one second distance is less than or equal to first distance may be present, at this point, sentencing in the charging equipment of amount
Break in these charging equipments whether the first charging equipment with preset charged speed, if so, then the first charging equipment is made
For spare charging equipment, if it is not, using other charging equipments within the scope of this as spare charging equipment.In other words, In
Within the scope of first distance, if there is the first charging equipment, then the first charging equipment is selected to charge for electric car, if do not had
Have the first charging equipment, then other charging equipments selected to charge for electric car, be greater than with to guarantee battery pack in electricity or
Equal to being electrically charged under default remaining capacity state.
It should also be noted that, the first charging equipment with preset charged speed can be trickle charge charging equipment.Specifically,
Voltage is larger when due to fast charge, is easy to cause over-charging of battery, and temperature is relatively high when fast charge, is easy to cause ternary lithium battery
Irreversible influence, therefore, preferential trickle charge charging equipment of choosing charge to battery pack, if there is no trickle charge charging equipment,
Other chargings such as fast charge charging equipment, commercial charging equipment, movable charging vehicle may be selected in order to guarantee to charge to battery pack in time
Equipment charges.
Further, second distance in spare charging equipment is maximum as target charging equipment.
That is, selecting to remain when electric automobile during traveling to the charging equipment when there is multiple spare charging equipment optional times
Remaining electricity closest to remaining capacity spare charging equipment as target charging equipment, to guarantee that battery pack can be as far as possible
Default remaining capacity is electrically charged.
According to one embodiment of present invention, as shown in Figure 5, further includes:
S501: detecting the Current Temperatures of battery pack, and judges whether Current Temperatures are in preset temperature section.
S502: if Current Temperatures are in non-default temperature range, vehicle parking is controlled.
Wherein, preset temperature section can be the normal operating temperature of battery pack, such as 0-40 DEG C.
That is, vehicle can be with normally travel, when the temperature of battery pack when battery pack is in normal working temperature section
Degree is in non-default temperature range, that is, and the temperature of battery pack then can control vehicle parking less than 0 DEG C or when being greater than 40 DEG C, with etc.
It is back to normal to battery pack temperature.
It should be understood that can be existed by automatic Pilot process control vehicle if electric car is autonomous driving vehicle
It stops in safety zone, if electric car is driver's driving, prompting message can be sent to driver, to remind driver
Control vehicle stops in safety zone.
According to one embodiment of present invention, as shown in Figure 6, further includes:
S601: the current curve of battery pack is obtained.
S602: when identifying that the curent change of battery pack and current curve are not inconsistent, go the heart to electricity according to curent change
The electric current of Chi Bao is limited.
Thus, it is possible to which limiting vehicle carries out the operations such as anxious acceleration, avoid causing inside battery generation secondary anti-because of curent change
Cell damage caused by answering.
In conclusion the charging method of electric car according to an embodiment of the present invention, it can be according to the decaying feelings of battery pack
The charging opportunity of battery pack is adjusted in condition, while also avoiding battery from occurring fastly by selecting trickle charge charging equipment to carry out charging
Damage is filled, battery is can be effectively reduced because of damage caused by charging behavior, slows down the rate of decay of battery pack.
In order to realize above-described embodiment, the present invention also proposes a kind of charging unit of electric car.
Fig. 7 is the block diagram of the charging unit of the electric car of the embodiment of the present invention.As shown in fig. 6, the electronic vapour
The charging unit 100 of vehicle, comprising: identification module 10, computing module 20 and selecting module 30.
Wherein, identification module 10 is used to obtain the parameter of battery pack in electric car, identifies working as battery pack according to parameter
Preceding battery capacity；Computing module 20 is used to be based on present battery capacity, obtains the default remaining capacity of electric car and presets
The first distance of the corresponding traveling of remaining capacity；Selecting module 30 is used to obtain charging equipment and electricity within the scope of electric automobile during traveling
The second distance of electrical automobile current location, and charging equipment is selected according to first distance and second distance.
Further, identification module 10 is used for, and obtains the battery capacity attenuation degree curve and battery pack of battery pack
History uses temperature, running time；Obtain current environmental temperature locating for electric car；Temperature is used according to attenuation curve, history
Degree, running time and current environmental temperature, determine the present battery capacity of battery pack.
Further, computing module 20 is used for, and according to present battery capacity and preset percentage, obtains default remaining capacity
Practical corresponding charge value；According to the current driving speed and charge value of electric car, calculates default remaining capacity and correspond to row
The first distance sailed.
Further, selecting module 30 is used for, and extracts the charging equipment that second distance is less than or equal to first distance；It is filling
Judge whether first charging equipment with preset charged speed in electric equipment；If so, then using the first charging equipment as standby
Use charging equipment；If it is not, using the charging equipment in addition to the first charging equipment as spare charging equipment.
Further, selecting module 30 is used for, and maximum charge as target of second distance in spare charging equipment is set
It is standby.
Further, identification module 10 is used for, and detects the Current Temperatures of battery pack, and judges whether Current Temperatures are in pre-
If temperature range；If the non-default temperature range of Current Temperatures, controls vehicle parking.
Further, identification module 10 is used for, and obtains the current curve of battery pack；Identify the curent change of battery pack
When not being inconsistent with current curve, limited according to electric current of the current curve to battery pack.
It should be noted that the explanation of the aforementioned charging method embodiment to electric car is also applied for the embodiment
Electric car charging unit, details are not described herein again.
In order to realize above-described embodiment, the present invention also proposes a kind of electric car, as shown in figure 8, electric car 200 includes
The charging unit 100 of electric car.
In order to realize above-described embodiment, the present invention also proposes a kind of computer readable storage medium, is stored thereon with calculating
Machine program, the program realize the charging method of electric car above-mentioned when being executed by processor.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized: have for data-signal is realized the logic gates of logic function from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as to limit of the invention
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of the invention
Type.
Claims (10)
1. a kind of charging method of electric car, which comprises the following steps:
The parameter for obtaining battery pack in electric car, the present battery capacity of the battery pack is identified according to the parameter；
Based on the present battery capacity, the default remaining capacity and the default remaining capacity pair of the electric car are obtained
The first distance that should be travelled；
Obtain the charging equipment within the scope of the electric automobile during traveling and the second distance of the electric car current location, and root
Charging equipment is selected according to the first distance and the second distance.
2. the charging method of electric car according to claim 1, which is characterized in that battery in the acquisition electric car
The parameter of packet identifies the present battery capacity of the battery pack according to the parameter, comprising:
The history of the battery capacity attenuation degree curve and the battery pack that obtain the battery pack uses temperature, when driving
Between；
Obtain current environmental temperature locating for the electric car；
According to the attenuation curve, the history use temperature, the running time and the current environmental temperature, determine described in
The present battery capacity of battery pack.
3. the charging method of electric car according to claim 1 or 2, which is characterized in that described to be based on the current electricity
Tankage obtains the default remaining capacity of the electric car and the first distance of the corresponding traveling of the default remaining capacity,
Include:
According to the present battery capacity and preset percentage, the default remaining capacity actually corresponding charge value is obtained；
According to the current driving speed of the electric car and the charge value, the corresponding traveling of the default remaining capacity is calculated
First distance.
4. the charging method of electric car according to claim 3, which is characterized in that it is described according to the first distance and
The second distance selects charging equipment, comprising:
Extract the charging equipment that the second distance is less than or equal to the first distance；
Judge whether first charging equipment with preset charged speed in the charging equipment；
If so, then using first charging equipment as spare charging equipment；
If it is not, using the charging equipment in addition to first charging equipment as the spare charging equipment.
5. the charging method of electric car according to claim 4, which is characterized in that further include:
Second distance described in the spare charging equipment is maximum as target charging equipment.
6. the charging method of electric car according to claim 1, which is characterized in that further include:
The Current Temperatures of the battery pack are detected, and judge whether the Current Temperatures are in preset temperature section；
If the non-default temperature range of Current Temperatures, controls vehicle parking.
7. the charging method of electric car according to claim 1, which is characterized in that further include:
Obtain the current curve of the battery pack；
When identifying that the curent change of the battery pack and the current curve are not inconsistent, according to the current curve to institute
The electric current for stating battery pack is limited.
8. a kind of charging unit of electric car characterized by comprising
Identification module identifies the current of the battery pack according to the parameter for obtaining the parameter of battery pack in electric car
Battery capacity；
Computing module obtains the default remaining capacity of the electric car and described for being based on the present battery capacity
The first distance of the default corresponding traveling of remaining capacity；
Selecting module, for obtaining the charging equipment within the scope of the electric automobile during traveling and the electric car current location
Second distance, and charging equipment is selected according to the first distance and the second distance.
9. a kind of electric car, which is characterized in that the charging unit including electric car as claimed in claim 8.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The charging method of the electric car as described in any in claim 1-7 is realized when execution.
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| CN110422060B (en) | 2021-02-05 |
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