CN105946605A - Electric automobile, power battery electric quantity management method and management system - Google Patents
Electric automobile, power battery electric quantity management method and management system Download PDFInfo
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- CN105946605A CN105946605A CN201610288892.9A CN201610288892A CN105946605A CN 105946605 A CN105946605 A CN 105946605A CN 201610288892 A CN201610288892 A CN 201610288892A CN 105946605 A CN105946605 A CN 105946605A
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- electrokinetic cell
- ratio
- electric automobile
- dump energy
- output
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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
-
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an electric automobile, a power battery electric quantity management method and a management system, wherein the power battery electric quantity management method comprises the following steps of obtaining the rest electric quantity of a power battery; calculating the first ratio of the rest electric quantity to the total electric quantity of the power battery; judging whether the first ratio is greater than the preset ratio or not; if so, controlling the power battery to work in a normal mode; performing returning to obtain the rest electric quantity of the power battery; if not, controlling the power battery to stop working and judging whether the electric automobile receives an emergency instruction or not; if so, controlling the power battery starts to work in an emergency mode, wherein the preset ratio is greater than zero; and after the electric automobile is re-started, controlling the power battery to work in a normal mode. The power battery electric quantity management method has the advantage that the goal of avoiding the defect that the electric automobile cannot run to a safe position for waiting for the rescue or cannot run to a charging station to be charged since a driver does not take notice of the rest electric quantity insufficiency of the power battery can be achieved.
Description
Technical field
The present invention relates to electric automobile field, more particularly, it relates to a kind of electric automobile, electrokinetic cell
Electric quantity managing method and management system.
Background technology
In recent years, along with popularizing of motor vehicles, environment is caused the biggest by the exhaust emissions of motor vehicles
Impact, haze becomes the weather phenomenon that many cities are common, and haze can be to the healthy shape of people
Condition produces very adverse influence.Therefore the motor vehicles developing more energy-saving and environmental protection have become as society
The common recognition of all circles.Under this trend, electric automobile becomes replacement orthodox car with relatively low disposal of pollutants
Selection.
The electrokinetic cell of electric automobile is its power resources, and the electric automobile of main flow all can set on instrumental panel
Put display device, for showing the dump energy of described electrokinetic cell, when remaining that described display device shows
When remaining electricity is zero, electric automobile cannot travel.When electric vehicle driver does not notice that electrokinetic cell remains
During remaining electricity deficiency, it is possible to there will be because electrokinetic cell dump energy be zero make electric automobile without
The situation that method travels occurs, and if time electrokinetic cell dump energy is zero electric automobile cast anchor in business district
Or on highway, described electric automobile can be made cannot to drive to home fallback or drive to charging
Station is charged, and electric automobile rests on and likely can cause traffic congestion on business district or highway
Or the vehicle accident such as knock into the back, jeopardize driver's person and property safety.
Therefore, a kind of electrokinetic cell electric quantity managing method is needed badly, to avoid owing to driver does not notice
Electrokinetic cell dump energy is not enough, and makes described electric automobile cannot drive to home fallback, or
The situation appearance that charging station is charged cannot be driven to.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of electric automobile, electrokinetic cell managing electric quantity
Method and management system, described electrokinetic cell electric quantity managing method is capable of avoiding owing to driver does not has
Notice that electrokinetic cell dump energy is not enough, and make described electric automobile cannot drive to home and treat
Help, maybe cannot drive to the purpose that charging station is charged.
For realizing above-mentioned technical purpose, embodiments provide following technical scheme:
A kind of electrokinetic cell electric quantity managing method, is applied to electric automobile, and described electric automobile includes power
Battery；Described electrokinetic cell electric quantity managing method includes:
Obtain the dump energy of described electrokinetic cell；
Calculate the first ratio of described dump energy and the total electricity of described electrokinetic cell；
Judge that described first ratio, whether more than presetting ratio, exists if it is, control described electrokinetic cell
Work under normal mode, and return the dump energy obtaining described electrokinetic cell；If it is not, then control institute
State electrokinetic cell quit work and judge whether described electric automobile receives emergent instruction, if it is,
Control described electrokinetic cell to start working in the emergency mode；Described default ratio is more than zero；
After described electric automobile restarts, control described electrokinetic cell and work in the normal mode.
Preferably, control described electrokinetic cell to work in the normal mode and include:
Output is can use to be set to the maximum work output of described electrokinetic cell the maximum of described electrokinetic cell
Rate；
Show the first dump energy ratio of described electrokinetic cell；Described first dump energy ratio is:
Wherein, n represents described first dump energy ratio；Q1Represent described dump energy；A represents institute
State default ratio；Q represents the total electricity of described electrokinetic cell.
Preferably, control described electrokinetic cell to start working in the emergency mode and include:
The maximum of described electrokinetic cell can use output be set to limit output；
Show the second dump energy ratio of described electrokinetic cell；
Wherein, described second dump energy ratio is equal to described first ratio；Described restriction output is
Described electrokinetic cell peak power output and the product of limit coefficient.
Preferably, the span of described limit coefficient is 0.01-1, including endpoint value.
A kind of electrokinetic cell power management system, is applied to electric automobile, and described electric automobile includes power
Battery；Described electrokinetic cell power management system includes:
Electricity acquiring unit, for obtaining the dump energy of described electrokinetic cell；
Computing unit, accounts for the first ratio of the total electricity of described electrokinetic cell for calculating described dump energy；
Judging unit, be used for judging described first ratio whether more than presetting ratio, if it is, by the
One control unit controls described electrokinetic cell and works in the normal mode, and returns described electricity acquiring unit；
Quit work if it is not, then controlled described electrokinetic cell by the second control unit and judge described electric automobile
Whether receive emergent instruction, if it is, controlled described electrokinetic cell emergent by the 3rd control unit
Start working under pattern；Described default ratio is more than zero；
Reset cell, for after described electric automobile restarts, controls described electrokinetic cell normally
MODE of operation.
Preferably, described first control unit is for can use output to set the maximum of described electrokinetic cell
It is set to the peak power output of described electrokinetic cell；
And show the first dump energy ratio of described electrokinetic cell；Described first dump energy ratio is:
Wherein, n represents described first dump energy ratio；Q1Represent described dump energy；A represents institute
State default ratio；Q represents the total electricity of described electrokinetic cell.
Preferably, described 3rd control unit is for can use output to set the maximum of described electrokinetic cell
It is set to limit output；
And show the second dump energy ratio of described electrokinetic cell；
Wherein, described second dump energy ratio is equal to described first ratio；Described restriction output is
Described electrokinetic cell peak power output and the product of limit coefficient.
Preferably, the span of described limit coefficient is 0.01-1, including endpoint value.
A kind of electric automobile, including the electrokinetic cell power management system described in any of the above-described embodiment.
From technique scheme it can be seen that embodiments provide a kind of electric automobile, power current
Pond electric quantity managing method and management system；Wherein, described electrokinetic cell electric quantity managing method is when described dynamic
First ratio of the dump energy of power battery electricity total with described electrokinetic cell is less than or equal to described default ratio
During value, controlling described electrokinetic cell and quit work, the most described electric automobile cannot travel；If now
When electric automobile is in the deathtraps such as business district highway or highway, driver can be to described electronic
Automobile sends emergent instruction, after described electric automobile receives described emergent instruction, controls described power current
Pond start working in the emergency mode in case driver by described electric automobile during traveling to home fallback or
Drive to charging station be charged.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 shows for the flow process of a kind of electrokinetic cell electric quantity managing method that one embodiment of the present of invention provides
It is intended to；
Fig. 2 shows for the structure of a kind of electrokinetic cell power management system that one embodiment of the present of invention provides
It is intended to.
Detailed description of the invention
As described in background, do not notice that electrokinetic cell dump energy deficiency makes as driver
Described electric automobile cannot drive to home fallback or drive to charging station when being charged, may
Cause traffic congestion or the vehicle accident such as knock into the back, jeopardize driver's person and property safety.
In view of this, embodiments provide a kind of electrokinetic cell electric quantity managing method, be applied to electricity
Electrical automobile, described electric automobile includes electrokinetic cell；Described electrokinetic cell electric quantity managing method includes:
Obtain the dump energy of described electrokinetic cell；
Judge that described first ratio, whether more than presetting ratio, exists if it is, control described electrokinetic cell
Work under normal mode, and return the dump energy obtaining described electrokinetic cell；If it is not, then control institute
State electrokinetic cell quit work and judge whether described electric automobile receives emergent instruction, if it is,
Control described electrokinetic cell to start working in the emergency mode；Described default ratio is more than zero；
After described electric automobile restarts, control described electrokinetic cell and work in the normal mode.
Accordingly, the embodiment of the present invention additionally provides a kind of electrokinetic cell power management system, is applied to electricity
Electrical automobile, described electric automobile includes electrokinetic cell；Described electrokinetic cell power management system includes:
Electricity acquiring unit, for obtaining the dump energy of described electrokinetic cell；
Computing unit, accounts for the first ratio of the total electricity of described electrokinetic cell for calculating described dump energy；
Judging unit, be used for judging described first ratio whether more than presetting ratio, if it is, by the
One control unit controls described electrokinetic cell and works in the normal mode, and returns electricity acquiring unit；As
The most no, then controlled described electrokinetic cell by the second control unit and quit work and judge that described electric automobile is
No receive emergent instruction, if it is, controlled described electrokinetic cell at emergent mould by the 3rd control unit
Start working under formula；Described default ratio is more than zero；
Reset cell, for after described electric automobile restarts, controls described electrokinetic cell normally
MODE of operation.
Accordingly, the embodiment of the present invention additionally provides a kind of electric automobile, and described electric automobile includes at least
One electrokinetic cell power management system as described in above-described embodiment.
From technique scheme it can be seen that embodiments provide a kind of electric automobile, power current
Pond electric quantity managing method and management system；Wherein, described electrokinetic cell electric quantity managing method is when described dynamic
First ratio of the dump energy of power battery electricity total with described electrokinetic cell is less than or equal to described default ratio
During value, controlling described electrokinetic cell and quit work, the most described electric automobile cannot travel；If now
When electric automobile is in the deathtraps such as business district highway or highway, driver can be to described electronic
Automobile sends emergent instruction, after described electric automobile receives described emergent instruction, controls described power current
Start working in the emergency mode in pond so that driver is by fallback at described electric automobile during traveling to home
Or drive to charging station and be charged.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Embodiments provide a kind of electrokinetic cell electric quantity managing method, be applied to electric automobile, institute
State electric automobile and include electrokinetic cell；As it is shown in figure 1, described electrokinetic cell electric quantity managing method includes:
S101: obtain the dump energy of described electrokinetic cell.
It should be noted that in one embodiment of the invention, by the cell tube of described electric automobile
Reason unit obtains the dump energy of described electrokinetic cell；In another embodiment of the present invention, it is also possible to
The dump energy of described electrokinetic cell is obtained by the entire car controller of described electric automobile；The present invention's
In another embodiment, it is also possible to obtain described power current by the process chip being built in electric automobile
The dump energy in pond.The concrete grammar of the present invention dump energy to obtaining described electrokinetic cell does not limit
Fixed, concrete depending on practical situation.
S102: calculate the first ratio of described dump energy and the total electricity of described electrokinetic cell.
It should be noted that in one embodiment of the invention, by the cell tube of described electric automobile
Reason unit calculates the first ratio of described dump energy and the total electricity of described electrokinetic cell；Another in the present invention
In one embodiment, it is also possible to by the entire car controller of described electric automobile calculate described dump energy with
First ratio of the total electricity of described electrokinetic cell；In yet another embodiment of the present invention, it is also possible to pass through
It is built in electric automobile and processes the chip described dump energy of calculating and the first of the total electricity of described electrokinetic cell
Ratio；The present invention the first ratio concrete to calculating described dump energy electricity total with described electrokinetic cell
Method does not limit, concrete depending on practical situation.
S103: judge whether described first ratio is more than and preset ratio, if it is, perform S104, as
The most no, then perform S105；
S104: control described electrokinetic cell and work in the normal mode, and return S101；
S105: control described electrokinetic cell and quit work and to judge whether described electric automobile receives emergent
Instruction, starts working in the emergency mode if it is, control described electrokinetic cell；Described default ratio
More than zero.
It should be noted that in one embodiment of the invention, step S103, S104 and S105 are in institute
State in the entire car controller of electric automobile and carry out；In another embodiment of the present invention, step S103,
S104 and S105 is carried out in other process chips in being built in described electric automobile.The present invention is to this also
Do not limit, concrete depending on practical situation.
S106: after described electric automobile restarts, controls described electrokinetic cell work in the normal mode
Make.
It should be noted that the most described electrokinetic cell works in before described electric automobile restarts
Normal mode or contingency mode, all by the work of described electrokinetic cell after described electric automobile restarts
Normal mode is reset to as state.
On the basis of above-described embodiment, in one embodiment of the invention, described electrokinetic cell is controlled
Work in the normal mode and include:
Output is can use to be set to the maximum work output of described electrokinetic cell the maximum of described electrokinetic cell
Rate；
Show the first dump energy ratio of described electrokinetic cell；Described first dump energy ratio is:
Wherein, n represents described first dump energy ratio；Q1Represent described dump energy；A represents institute
State default ratio；Q represents the total electricity of described electrokinetic cell.
During it should be noted that described electrokinetic cell works in the normal mode, described first ratio is more than
Described default ratio, now it is believed that the dump energy of described electrokinetic cell is the most sufficient, the most permissible
Output is can use to be set to the peak power output of described electrokinetic cell the maximum of described electrokinetic cell,
Ensure the normal use of described electric automobile various functions.
In one embodiment of the invention, described power current is shown by the instrumental panel of described electric automobile
The first dump energy ratio in pond.In another embodiment of the present invention, it is also possible to by being arranged at
State the display module on electric automobile console and show the first dump energy ratio of described electrokinetic cell.This
This is not limited by invention, concrete depending on practical situation.
Also, it should be noted in the present embodiment, described electric automobile in the normal mode can dynamic
The electricity of power battery is Q × (1-A), and when described first ratio is equal to described default ratio, described first remains
Remaining electricity ratio is zero, and available power the most in the normal mode is zero, if now electric automobile is in noisy
During the deathtrap such as urban highway or highway, driver can be by sending to described electric automobile
Emergent instruction, described electric automobile controls described electrokinetic cell emergent after receiving described emergent instruction
Start working under pattern, in order to described electric automobile is moved to safety zone fallback or moves to by driver
Charging station is charged.In the emergency mode, described electric automobile can the electricity of electrokinetic cell be
Q × A, wherein A is more than zero.In one embodiment of the invention, the span of described default ratio
For 0.01-0.5, including endpoint value.In another embodiment of the present invention, the value of described default ratio
Being 0.1, in yet another embodiment of the present invention, the value of described default ratio is 0.2.The present invention is to institute
Concrete value and the span of stating default ratio do not limit, concrete depending on practical situation.
One specific embodiment of the present invention provides a kind of driver and sends emergent finger to described electric automobile
The concrete grammar of order, including:
(1): pull the hand brake；
(2): the gear of electric automobile is placed in neutral；
(3): step on braking, key is placed in the Start shelves T1 time simultaneously；
(4): in the T2 moment, execution step (1), (2), (3) n times are repeated.
Send out it should be noted that the present embodiment provide only a kind of feasible driver to described electric automobile
The method sending emergent instruction, in another embodiment of the present invention, driver sends out to described electric automobile
The method sending emergent instruction can also be:
(1): pull the hand brake；
(2): the gear of electric automobile is placed in neutral；
(3): step on braking, key is placed in the Start shelves T1 time simultaneously.
In a preferred embodiment of the invention, it is also possible to by arranging triggering in described electric automobile
Button, driver sends emergent instruction to described electric automobile after pressing triggering button.The present invention is to driving
The concrete grammar that member sends emergent instruction to described electric automobile does not limit, concrete regard practical situation and
Fixed.
On the basis of above-described embodiment, in another embodiment of the present invention, described electrokinetic cell is controlled
Start working in the emergency mode and include:
The maximum of described electrokinetic cell can use output be set to limit output；
Show the second dump energy ratio of described electrokinetic cell.
On the basis of above-described embodiment, in yet another embodiment of the present invention, described second residue electricity
Amount ratio is equal to described first ratio.In the present embodiment, work when the electrokinetic cell of described electric automobile
Time under contingency mode, show described second dump energy ratio by the instrumental panel of described electric automobile；
In another embodiment of the present invention, aobvious by being arranged at the display module of described electric automobile console
Show described second dump energy ratio.The present invention concrete device to showing described second dump energy ratio
Do not limit, concrete depending on practical situation.
It should be noted that in the present embodiment, when described first ratio is equal to described default ratio,
Described first dump energy ratio is zero, when the most described electric automobile works in the normal mode, passes through instrument
Available power under the described electrokinetic cell normal mode that dial plate or other display modules show is zero, now
If driver sends emergent instruction to described electric automobile, the most described electrokinetic cell can be at contingency mode
Under start working, the described electrokinetic cell contingency mode shown now by instrumental panel or other display modules
Under available power be the first ratio.
On the basis of above-described embodiment, in a preferred embodiment of the invention, described restriction exports
Power is the product of described electrokinetic cell peak power output and limit coefficient.
On the basis of above-described embodiment, in yet another embodiment of the present invention, described limit coefficient
Span is 0.01-1, including endpoint value.
It should be noted that the purpose introducing described limit coefficient is when described electrokinetic cell is at emergent mould
When working under formula, output power limit is can use to be described restriction output the maximum of described electrokinetic cell,
In such a mode, controlling the maximum of described electrokinetic cell can use the purpose of output to be to avoid driver to adopt
Take some drive manners consuming electricity bigger to be quickly exhausted by the dump energy of described electrokinetic cell,
So that described electric automobile can drive to safety zone or charging station.In one embodiment of the invention,
The value of described limit coefficient is 0.1；In another embodiment of the present invention, the taking of described limit coefficient
Value is 0.2.The concrete value of described limit coefficient is not limited by the present invention, concrete regarding practical situation
Fixed.
Also, it should be noted in a preferred embodiment of the invention, when described electrokinetic cell is being answered
During anxious MODE of operation, the air conditioning system of described electric automobile will be used by restriction, it is to avoid described power current
The quick consumption of pond dump energy.In another preferred embodiment of the invention, when described electrokinetic cell
When working in the emergency mode, the air conditioning system of described electric automobile and audio frequency and video Play System all will be by
Limit and use, it is to avoid the quick consumption of described electrokinetic cell dump energy, it is ensured that in the emergency mode, institute
The dump energy stating electrokinetic cell is mostly used for driving described electric automobile during traveling.This is not done by the present invention
Limit, concrete depending on practical situation.
In sum, a kind of electrokinetic cell electric quantity managing method, described power are embodiments provided
Battery capacity management method is the of dump energy and the total electricity of described electrokinetic cell when described electrokinetic cell
When one ratio is less than or equal to described default ratio, controls described electrokinetic cell and quit work, now described
Electric automobile cannot travel；If now electric automobile is in the hazardous areas such as business district highway or highway
During territory, driver can send emergent instruction to described electric automobile, and described electric automobile receives described
After emergent instruction, control described electrokinetic cell and start working in the emergency mode so that driver is by described electricity
Electrical automobile drives to home fallback or drives to charging station and be charged.
Accordingly, the embodiment of the present invention additionally provides a kind of electrokinetic cell power management system, is applied to electricity
Electrical automobile, described electric automobile includes electrokinetic cell；As in figure 2 it is shown, described electrokinetic cell managing electric quantity system
System includes:
Electricity acquiring unit A01, for obtaining the dump energy of described electrokinetic cell；
Computing unit A02, is used for calculating described dump energy and accounts for the first ratio of the total electricity of described electrokinetic cell
Value；
Judging unit A03, is used for judging whether described first ratio is more than and presets ratio, if it is,
Controlled described electrokinetic cell by the first control unit (not shown in accompanying drawing 2) to work in the normal mode,
And return described electricity acquiring unit A01；If it is not, then (accompanying drawing 2 is not shown by the second control unit
Go out) control described electrokinetic cell and quit work and judge whether described electric automobile receives emergent instruction,
If it is, controlled described electrokinetic cell at emergent mould by the 3rd control unit (not shown in accompanying drawing 2)
Start working under formula；Described default ratio is more than zero；
Reset cell A04, for after described electric automobile restarts, controls described electrokinetic cell and exists
Work under normal mode.
On the basis of above-described embodiment, in one embodiment of the invention, described first control unit
For can use output to be set to the maximum work output of described electrokinetic cell the maximum of described electrokinetic cell
Rate；
And show the first dump energy ratio of described electrokinetic cell；Described first dump energy ratio is:
Wherein, n represents described first dump energy ratio；Q1Represent described dump energy；A represents described
Preset ratio；Q represents the total electricity of described electrokinetic cell.
During it should be noted that described electrokinetic cell works in the normal mode, described first ratio is more than
Described default ratio, now it is believed that the dump energy of described electrokinetic cell is the most sufficient, the most permissible
Output is can use to be set to the peak power output of described electrokinetic cell the maximum of described electrokinetic cell,
Ensure the normal use of described electric automobile various functions.
In one embodiment of the invention, described power current is shown by the instrumental panel of described electric automobile
The first dump energy ratio in pond.In another embodiment of the present invention, it is also possible to by being arranged at
State the display module on electric automobile console and show the first dump energy ratio of described electrokinetic cell.This
This is not limited by invention, concrete depending on practical situation.
Also, it should be noted by above-mentioned formula it is found that in the present embodiment, described electronic vapour
Car in the normal mode can the electricity of electrokinetic cell be Q × (1-A), when described first ratio is equal to described
When presetting ratio, described first dump energy ratio is zero, and available power the most in the normal mode is zero,
Now if electric automobile is in the deathtraps such as business district highway or highway, driver can be led to
Crossing and send emergent instruction to described electric automobile, described electric automobile is controlled after receiving described emergent instruction
Make described electrokinetic cell to start working in the emergency mode, in order to described electric automobile is moved to by driver
Safety zone fallback or move to charging station and be charged.In the emergency mode, described electric automobile can be used
The electricity of electrokinetic cell be Q × A, wherein A is more than zero.In one embodiment of the invention, described
The span presetting ratio is 0.01-0.5, including endpoint value.In another embodiment of the present invention,
The value of described default ratio is 0.1, in yet another embodiment of the present invention, and taking of described default ratio
Value is 0.2.Concrete value and the span of described default ratio are not limited by the present invention, specifically regard
Depending on practical situation.
One specific embodiment of the present invention provides a kind of driver and sends emergent finger to described electric automobile
The concrete grammar of order, including:
(1): pull the hand brake；
(2): the gear of electric automobile is placed in neutral；
(3): step on braking, key is placed in the Start shelves T1 time simultaneously；
(4): in the T2 moment, execution step (1), (2), (3) n times are repeated.
Send out it should be noted that the present embodiment provide only a kind of feasible driver to described electric automobile
The method sending emergent instruction, in another embodiment of the present invention, driver sends out to described electric automobile
The method sending emergent instruction can also be:
(1): pull the hand brake；
(2): the gear of electric automobile is placed in neutral；
(3): step on braking, key is placed in the Start shelves T1 time simultaneously.
In a preferred embodiment of the invention, it is also possible to by arranging triggering in described electric automobile
Button, driver sends emergent instruction to described electric automobile after pressing triggering button.The present invention is to driving
The concrete grammar that member sends emergent instruction to described electric automobile does not limit, concrete regard practical situation and
Fixed.
On the basis of above-described embodiment, in another embodiment of the present invention, described 3rd control unit
Output is limited for the maximum of described electrokinetic cell can use output be set to；
And show the second dump energy ratio of described electrokinetic cell；
Wherein, described second dump energy ratio is equal to described first ratio；Described restriction output is
Described electrokinetic cell peak power output and the product of limit coefficient.
It should be noted that in the present embodiment, when the electrokinetic cell of described electric automobile works in emergent
Time under pattern, show described second dump energy ratio by the instrumental panel of described electric automobile；At this
In another bright embodiment, show described by being arranged at the display module of described electric automobile console
Second dump energy ratio.The concrete device showing described second dump energy ratio is not done by the present invention
Limit, concrete depending on practical situation.
In the present embodiment, when described first ratio is equal to described default ratio, described first residue electricity
Amount ratio is zero, when the most described electric automobile works in the normal mode, by instrumental panel or other displays
Available power under the described electrokinetic cell normal mode that module shows is zero, if now driver is to institute
Stating electric automobile and send emergent instruction, the most described electrokinetic cell can be started working in the emergency mode, this
Time the described electrokinetic cell contingency mode that shown by instrumental panel or other display modules under available power be
First ratio.
On the basis of above-described embodiment, in yet another embodiment of the present invention, described limit coefficient
Span is 0.01-1, including endpoint value.
It should be noted that the purpose introducing described limit coefficient is when described electrokinetic cell is at emergent mould
When working under formula, output power limit is can use to be described restriction output the maximum of described electrokinetic cell,
In such a mode, controlling the maximum of described electrokinetic cell can use the purpose of output to be to avoid driver to adopt
Take some drive manners consuming electricity bigger to be quickly exhausted by the dump energy of described electrokinetic cell,
So that described electric automobile can drive to safety zone or charging station.In one embodiment of the invention,
The value of described limit coefficient is 0.1；In another embodiment of the present invention, the taking of described limit coefficient
Value is 0.2.The concrete value of described limit coefficient is not limited by the present invention, concrete regarding practical situation
Fixed.
Also, it should be noted in a preferred embodiment of the invention, when described electrokinetic cell is being answered
During anxious MODE of operation, the air conditioning system of described electric automobile will be used by restriction, it is to avoid described power current
The quick consumption of pond dump energy.In another preferred embodiment of the invention, when described electrokinetic cell
When working in the emergency mode, the air conditioning system of described electric automobile and audio frequency and video Play System all will be by
Limit and use, it is to avoid the quick consumption of described electrokinetic cell dump energy, it is ensured that in the emergency mode, institute
The dump energy stating electrokinetic cell is mostly used for driving described electric automobile during traveling.This is not done by the present invention
Limit, concrete depending on practical situation.
On the basis of above-described embodiment, in one embodiment of the invention, described electricity acquiring unit
A01, computing unit A02, judging unit A03, reset cell A04, the first control unit, the second control
Unit and the 3rd control unit are integrated in the entire car controller of described electric automobile；At another of the present invention
In individual embodiment, described electricity acquiring unit A01, computing unit A02, judging unit A03, replacement list
Unit A04, the first control unit, the second control unit and the 3rd control unit can also be separately set in described
Inside electric automobile；In yet another embodiment of the present invention, described electricity acquiring unit A01, calculating list
Unit A02, judging unit A03, reset cell A04, the first control unit, the second control unit and the 3rd
Control unit can also be integrated in the process chip being built in above-mentioned electric automobile.The present invention is to this also
Do not limit, concrete depending on practical situation.
Accordingly, the embodiment of the present invention additionally provides a kind of electric automobile, and described electric automobile includes at least
One electrokinetic cell power management system as described in above-mentioned any embodiment.
In sum, a kind of electric automobile, electrokinetic cell electric quantity managing method are embodiments provided
And management system；Wherein, described electrokinetic cell electric quantity managing method is when the residue electricity of described electrokinetic cell
When first ratio of amount and the total electricity of described electrokinetic cell is less than or equal to described default ratio, control described
Electrokinetic cell quits work, and the most described electric automobile cannot travel；If now electric automobile is in noisy
During the deathtrap such as urban highway or highway, driver can send emergent finger to described electric automobile
Order, after described electric automobile receives described emergent instruction, controls described electrokinetic cell in the emergency mode
Start working so that driver by described electric automobile during traveling to home fallback or drives to charging station and enters
Row charging.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. an electrokinetic cell electric quantity managing method, is applied to electric automobile, and described electric automobile includes moving
Power battery；It is characterized in that, described electrokinetic cell electric quantity managing method includes:
Obtain the dump energy of described electrokinetic cell；
Calculate the first ratio of described dump energy and the total electricity of described electrokinetic cell；
Judge that described first ratio, whether more than presetting ratio, exists if it is, control described electrokinetic cell
Work under normal mode, and return the dump energy obtaining described electrokinetic cell；If it is not, then control institute
State electrokinetic cell quit work and judge whether described electric automobile receives emergent instruction, if it is,
Control described electrokinetic cell to start working in the emergency mode；Described default ratio is more than zero；
After described electric automobile restarts, control described electrokinetic cell and work in the normal mode.
Electrokinetic cell electric quantity managing method the most according to claim 1, it is characterised in that control institute
State electrokinetic cell to work in the normal mode and include:
Output is can use to be set to the maximum work output of described electrokinetic cell the maximum of described electrokinetic cell
Rate；
Show the first dump energy ratio of described electrokinetic cell；Described first dump energy ratio is:
Wherein, n represents described first dump energy ratio；Q1Represent described dump energy；A represents institute
State default ratio；Q represents the total electricity of described electrokinetic cell.
Electrokinetic cell electric quantity managing method the most according to claim 1, it is characterised in that control institute
State electrokinetic cell to start working in the emergency mode and include:
The maximum of described electrokinetic cell can use output be set to limit output；
Show the second dump energy ratio of described electrokinetic cell；
Wherein, described second dump energy ratio is equal to described first ratio；Described restriction output is
Described electrokinetic cell peak power output and the product of limit coefficient.
Electrokinetic cell electric quantity managing method the most according to claim 3, it is characterised in that described limit
The span of coefficient processed is 0.01-1, including endpoint value.
5. an electrokinetic cell power management system, is applied to electric automobile, and described electric automobile includes moving
Power battery；It is characterized in that, described electrokinetic cell power management system includes:
Electricity acquiring unit, for obtaining the dump energy of described electrokinetic cell；
Computing unit, accounts for the first ratio of the total electricity of described electrokinetic cell for calculating described dump energy；
Judging unit, be used for judging described first ratio whether more than presetting ratio, if it is, by the
One control unit controls described electrokinetic cell and works in the normal mode, and returns described electricity acquiring unit；
Quit work if it is not, then controlled described electrokinetic cell by the second control unit and judge described electric automobile
Whether receive emergent instruction, if it is, controlled described electrokinetic cell emergent by the 3rd control unit
Start working under pattern；Described default ratio is more than zero；
Reset cell, for after described electric automobile restarts, controls described electrokinetic cell normally
MODE of operation.
Electrokinetic cell power management system the most according to claim 5, it is characterised in that described
One control unit is for can use output to be set to described electrokinetic cell the maximum of described electrokinetic cell
Peak power output；
And show the first dump energy ratio of described electrokinetic cell；Described first dump energy ratio is:
Wherein, n represents described first dump energy ratio；Q1Represent described dump energy；A represents institute
State default ratio；Q represents the total electricity of described electrokinetic cell.
Electrokinetic cell power management system the most according to claim 5, it is characterised in that described
Three control units are set to limit output for the maximum of described electrokinetic cell can use output；
And show the second dump energy ratio of described electrokinetic cell；
Wherein, described second dump energy ratio is equal to described first ratio；Described restriction output is
Described electrokinetic cell peak power output and the product of limit coefficient.
Electrokinetic cell power management system the most according to claim 7, it is characterised in that described limit
The span of coefficient processed is 0.01-1, including endpoint value.
9. an electric automobile, it is characterised in that described electric automobile includes that at least one is such as claim
Electrokinetic cell power management system described in any one of 5-8.
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| CN105946605B (en) | 2018-05-25 |
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Application publication date: 20160921 Assignee: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Assignor: Chongqing Changan Automobile Co.,Ltd.|CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Contract record no.: 2018500000022 Denomination of invention: Electric automobile, power battery electric quantity management method and management system Granted publication date: 20180525 License type: Exclusive License Record date: 20181130 |
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Effective date of registration: 20190108 Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee before: CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Patentee before: Chongqing Changan Automobile Co.,Ltd. |
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |