CN108116243A - Adjusting method, device and the automobile of hybrid electric vehicle electric quantity equalization point - Google Patents
Adjusting method, device and the automobile of hybrid electric vehicle electric quantity equalization point Download PDFInfo
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- CN108116243A CN108116243A CN201611067115.8A CN201611067115A CN108116243A CN 108116243 A CN108116243 A CN 108116243A CN 201611067115 A CN201611067115 A CN 201611067115A CN 108116243 A CN108116243 A CN 108116243A
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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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
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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
Abstract
A kind of adjusting method, device and the automobile of hybrid electric vehicle electric quantity equalization point, the described method comprises the following steps：Gather a variety of vehicle parameter values；It determines to drive fierce grade according to a variety of vehicle parameter values；Fierce grade adjusting electric quantity balancing point is driven according to described, the driving severity of the fierce grade instruction of driving is higher, and the electric quantity balancing point is higher.The present invention program according to the driving severity of user, can change the main power source of automobile, so as to obtain different degrees of vehicle dynamic quality.
Description
Technical field
The present invention relates to automobile energy management domain, especially a kind of adjusting side of hybrid electric vehicle electric quantity equalization point
Method, device and automobile.
Background technology
With the enhancing of social progress and environmental protection consciousness, new-energy automobile is developed, hybrid vehicle
It is one of important branch.Hybrid vehicle provides driving force by two kinds of power sources of engine and motor for automobile.
Compared with orthodox car, using capacity usage ratio can be effectively improved during motor drive, better economy is brought.With pure electricity
Motor-car is compared, and user can be better met for driving manipulation sense to automobile belt come more strong power using during engine driving
Demand.
Start in hybrid vehicle and at a slow speed when driving, compared with engine, the power transfer efficiency of motor be higher,
Driving force is provided based on motor at this time can more effectively utilize the energy.And in the high vehicle speeds stage, engine
Power transfer efficiency is higher than motor, is changed at this time based on engine driving, can preferably improve capacity usage ratio.
Existing this vehicle parameter by average speed adjusts hybrid electric vehicle electric quantity equalization point in the prior art, and then
Change the method for main power source namely when running at a low speed, using relatively low electric quantity balancing point, more carried using motor
For driving force, and in high speed when driving, the higher electric quantity balancing point of use, based on engine driving.
Wherein, electric quantity balancing point is also known as state-of-charge (State of Charge, SOC) equalization point, i.e. remaining power electricity
Amount accounts for the ratio of battery capacity.In specific implementation, when remaining battery power is higher than electric quantity balancing point, vehicle can more often make
It is fuel-efficient to achieve the purpose that with motor；When remaining battery power is less than electric quantity balancing point, engine is made to be easier to intervene drive
Electrical automobile travels, and motor power generation is driven to charge the battery, until remaining battery power is restored to electric quantity balancing point.
Compared with orthodox car, in the prior art by adjusting hybrid electric vehicle electric quantity equalization point, obtain higher
Capacity usage ratio optimizes economy.But the prior art can not meet the user with different driving habits for dynamic property
Different demands.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of adjusting method of hybrid electric vehicle electric quantity equalization point, device and
Automobile can adjust electric quantity balancing point to change the main power source of automobile, so as to obtain according to the driving severity of user
Different degrees of vehicle dynamic quality.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of adjusting side of hybrid electric vehicle electric quantity equalization point
Method, which is characterized in that comprise the following steps：Gather a variety of vehicle parameter values；It determines to drive according to a variety of vehicle parameter values
Fierce grade；Fierce grade adjusting electric quantity balancing point, the driving fierceness journey for driving fierce grade instruction are driven according to described
Degree is higher, and the electric quantity balancing point is higher.
Optionally, a variety of vehicle parameter values are selected from：Speed parameter, accelerator open degree parameter and brake aperture parameter.
Optionally, determine that driving fierce grade includes according to a variety of vehicle parameter values：It is each to calculate a variety of vehicle parameters
From average value；The fierce grade of the driving is determined according to a variety of respective average values of vehicle parameter.
Optionally, a variety of respective average values of vehicle parameter of calculating include：A variety of vehicle parameter values be according to
What the default sampling interval collected, for each vehicle parameter value, when collecting current driving parameter value every time, calculate
Determine current parameter value of averagely driving a vehicle；Wherein, it is described current if the current driving parameter value meets default maintenance condition
Parameter value of averagely driving a vehicle is equal to preceding average row vehicle parameter value, and the preceding average row vehicle parameter value is in current average row
Average driving parameter value once definite before vehicle parameter value；If the current driving parameter value is more than a preceding average row
Vehicle parameter value, then the current parameter value of averagely driving a vehicle be equal to the preceding average row vehicle parameter value increase default accumulated value and
No more than default vehicle parameter upper limit value；If the current driving parameter value is less than a preceding average row vehicle, described
Parameter value of currently averagely driving a vehicle is equal to the preceding average row vehicle parameter value and reduces default decrement value and not less than default driving
Parameter lower limit value.
Optionally, when the vehicle parameter is speed, the default maintenance condition includes：The current driving parameter value
It is less than preset vehicle speed threshold value equal to a preceding average row vehicle parameter value or the current driving parameter value.
Optionally, when the vehicle parameter is accelerator open degree parameter, the default maintenance condition includes：The current line
Vehicle parameter value is equal to a preceding average row vehicle parameter value or the current driving parameter value is less than default accelerator open degree threshold value,
Alternatively, automobile gear level is neutral gear.
Optionally, when the vehicle parameter is brake aperture parameter, the default maintenance condition includes：The current line
Vehicle parameter value is equal to preceding average row vehicle parameter value, alternatively, the current driving parameter value is less than default brake aperture lower limit
It is worth or more than default brake aperture upper limit value, alternatively, automobile gear level is neutral gear.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of adjusting of hybrid electric vehicle electric quantity equalization point
Device, described device include：Collecting unit, suitable for gathering a variety of vehicle parameter values；Determination unit, suitable for according to a variety of rows
Vehicle parameter value determines to drive fierce grade；Adjustment unit, it is described suitable for adjusting electric quantity balancing point according to the fierceness grade that drives
The driving severity of the fierce grade instruction of driving is higher, and the electric quantity balancing point is higher.
Optionally, the collecting unit is suitable for acquisition selected from speed parameter, accelerator open degree parameter and brake aperture parameter
A variety of vehicle parameter values.
Optionally, the determination unit includes：Computation subunit, suitable for calculating a variety of respective average values of vehicle parameter；
Determination subelement, suitable for determining the fierce grade of the driving according to a variety of respective average values of vehicle parameter.
Optionally, the computation subunit includes：First computation subunit, suitable for for each vehicle parameter value, every
It is secondary to calculate and determine current parameter value of averagely driving a vehicle when collecting current driving parameter value, a variety of vehicle parameter values be by
It is collected according to the default sampling interval；Wherein, it is described to work as if the current driving parameter value meets default maintenance condition
Preceding parameter value of averagely driving a vehicle is equal to preceding average row vehicle parameter value, and the preceding average row vehicle parameter value is average currently
Average driving parameter value once definite before vehicle parameter value；If the current driving parameter value is more than described preceding once average
Vehicle parameter value, then the current parameter value of averagely driving a vehicle, which is equal to the preceding average row vehicle parameter value, increases default accumulated value
And no more than default vehicle parameter upper limit value；If the current driving parameter value is less than a preceding average row vehicle, institute
It states current parameter value of averagely driving a vehicle and is equal to the default decrement value of the preceding average row vehicle parameter value reduction and not less than default row
Vehicle parameter lower limit value.
Optionally, when the vehicle parameter is speed, the default maintenance condition includes：The current driving parameter value
It is less than preset vehicle speed threshold value equal to a preceding average row vehicle parameter value or the current driving parameter value.
Optionally, when the vehicle parameter is accelerator open degree parameter, the default maintenance condition includes：The current line
Vehicle parameter value is equal to a preceding average row vehicle parameter value or the current driving parameter value is less than default accelerator open degree threshold value,
Alternatively, automobile gear level is neutral gear.
Optionally, when the vehicle parameter is brake aperture parameter, the default maintenance condition includes：The current line
Vehicle parameter value is equal to preceding average row vehicle parameter value, alternatively, the current driving parameter value is less than default brake aperture lower limit
It is worth or more than default brake aperture upper limit value, alternatively, automobile gear level is neutral gear.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of automobile, the automobile includes above-mentioned mixing
The regulating device of power vehicle electric quantity balancing point.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that：
The embodiment of the present invention is directed to hybrid vehicle, according to a variety of vehicle parameter values, determines to drive fierce grade, and root
According to the fierce level adjustment electric quantity balancing point of driving.It, can be according to the driving fierceness journey of user using the scheme of the embodiment of the present invention
Degree adjusts electric quantity balancing point to change the main power source of automobile, so as to obtain different degrees of vehicle dynamic quality, is driven with meeting
Sail different demands of the different user of severity to dynamic property.
Further, compared with the prior art in merely with average speed as single vehicle parameter adjust electric quantity balancing point,
The embodiment of the present invention is using a variety of vehicle parameters (such as speed parameter, accelerator open degree parameter, brake aperture parameter etc.) to user
It drives fierce grade to be divided, it is more careful and accurate to divide, as a result, hybrid power vapour corresponding with driving fierce grade
The setting of vehicle electric quantity balancing point is also more complicated, so as to obtain finer regulating effect, better meets different user to dynamic
The different demands of power.
Further, it is middle compared with the prior art to use average value or median algorithm, calculate acquisition in the past period
To several vehicle parameter values average value or I d median to obtain average driving parameter value, the average row of the embodiment of the present invention
Vehicle parameter value-based algorithm is neither easy to be influenced be subject to Outliers, and withouts waiting for longer acquisition time, can be more true
It is real and reflect driving cycles in real time, so as to achieve the purpose that it is more accurate, quickly adjust hybrid electric vehicle electric quantity equalization point.
Description of the drawings
Fig. 1 is a kind of flow chart of the adjusting method of hybrid electric vehicle electric quantity equalization point in the embodiment of the present invention.
Fig. 2 be a kind of calculating in the embodiment of the present invention averagely drive a vehicle parameter value method flow chart.
Fig. 3 is a kind of structural representation of the regulating device of hybrid electric vehicle electric quantity equalization point in the embodiment of the present invention
Figure.
Specific embodiment
As previously mentioned, in the prior art in order to optimize vehicle energy management, it will usually take certain measure.Such as one kind is arranged
Shi Wei：According to current road condition information prediction future travel state, and SOC is controlled accordingly.
Specifically, in first specific example, according to the longitude of speed signal and vehicle, Position Latitude signal estimation
The slope change and parking condition of vehicle in following a period of time, and determine therefrom that target SOC geometric locuses.It is specific at second
In example, future travel state is predicted according to the driving information currently using average speed and dead time ratio as representative, actively
Driving mode is made choice, to optimize vehicle energy management.In the 3rd specific example, by being carried out to road condition
Line identifies, calls and real-time update is used for real-time optimization engine with the corresponding optimal control parameter of vehicle current driving operating mode
It is distributed with the power of motor.In the 4th specific example, using the adaptive vehicle energy management algorithm of multi-state, by right
Work information processing and the conversion to the corresponding control strategy of different running environments maintain battery SOC balance.
But traffic information is travelled as the foundation for adjusting electric quantity balancing point using actual vehicle, do not account for different driving
The influence of custom can not fully reflect demand of the driver to power performance.Future travel shape is predicted according to driving information
State, the conclusion of information needs to realize by certain running time, and the condition of pattern switching can not embody driver's
It is intended to.It is distributed by the power for calling control parameter real-time optimization engine and motor, only for road condition, not comprising driving
The person of sailing is to accelerating, the subjective information of brake pedal action, therefore can not meet driver under special operation condition to the need of dynamic property
It asks.By to work information processing and conversion to the corresponding control strategy of different running environments, being still only for road conditions, and do not have
There is the influence for considering different driving habits.
In the above-mentioned measure of the prior art, Shape Of Things To Come transport condition is mostly predicted according to present road work information, is examined
Consider present battery SOC value, engine and power of motor or torque are allocated, optimize vehicle energy management.For special work
Under condition, driver does not make dynamic property and Eco-power demand supplement and considers, is adjusted without reference to related electric quantity balancing point yet
Control strategy.More than technology adjusts torque distribution, with efficiency optimization target in order to control on the basis of SOC targets determine.On
Stating the prior art and technical problems to be solved in the embodiment of the present invention has essential distinction.
In the prior art, it is for another measure taken of optimization vehicle energy management：Utilize speed and road grade
Information identifies driving mode, and SOC value of battery is divided into high, medium and low three sections, and then formulates different capacity distribution side
Formula.Specifically, when preset range (i.e. high speed or low-speed mode) of the speed higher or lower than common driving mode, improve
In, the lower limiting value in low SOC sections so that vehicle in advance enter charge mode；When vehicle driving up, improve under low SOC sections
Limit value prevents racing of the engine or frequently flame-out.
By average speed, this vehicle parameter adjusts hybrid electric vehicle electric quantity equalization point to the above method, and then changes master
It wants power source namely when running at a low speed, using relatively low electric quantity balancing point, more provides driving force using motor, and
In high speed when driving, the higher electric quantity balancing point of use, based on engine driving.But the above method it is similary and less than
Demand of the sufficient user in terms of vehicle dynamic quality.The driving style of different drivers is necessarily otherwise varied, even therefore same
Section, same energy distributing method are not suitable for different drivers all.When user gets used to fierce drive, even if
The stage of running at a low speed may also can wish automobile based on engine driving, so as to obtain stronger dynamic property.And when user is accustomed to
When gentle drive, even if in the stage of running at high speed, it is also possible to it is desirable that automobile is based on motor drive, it is steady so as to obtain
Manipulation sense.
The present inventor passes through the study found that the key of the above problem is the prior art merely with average speed conduct
Single vehicle parameter adjusts electric quantity balancing point, and still, only one vehicle parameter can not mark off careful driving fierceness grade,
So as to accordingly adjust electric quantity balancing point.
The embodiment of the present invention be directed to hybrid vehicle, using a variety of vehicle parameters (such as speed parameter, accelerator open degree join
Number, brake aperture parameter etc.) the fierce grade of user's driving is divided, and corresponding electricity is set according to fierce grade is driven
Equalization point, so as to obtain finer regulating effect, it is possible thereby to different degrees of vehicle dynamic quality correspondingly be obtained, to meet
Drive different demands of the different user of severity to dynamic property.
It is understandable for above-mentioned purpose, feature and advantageous effect of the invention is enable to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
With reference to figure 1, Fig. 1 is a kind of stream of the adjusting method of hybrid electric vehicle electric quantity equalization point in the embodiment of the present invention
Cheng Tu, the adjusting method of the hybrid electric vehicle electric quantity equalization point can include step S101 to step S103.
Step S101：Gather a variety of vehicle parameter values.
Step S102：It determines to drive fierce grade according to a variety of vehicle parameter values.
Step S103：Fierce grade adjusting electric quantity balancing point is driven according to described, the fierce grade instruction of driving is driven
It is higher to sail severity, the electric quantity balancing point is higher.
The specific embodiment of the adjusting method of the hybrid electric vehicle electric quantity equalization point is done with reference to Fig. 1 detailed
Explanation.
In the specific implementation of step S101, a variety of vehicle parameter values can be selected from：Speed parameter, accelerator open degree parameter and
Brake aperture parameter.
Specifically, speed parameter is used to define road speed.Accelerator open degree is used to define the depth of trampling of gas pedal, example
Such as accelerator open degree can be stated with the signal of one 0~100%, 0 representative is not stepped on the gas, and 100% represents throttle maximum of stepping on
Aperture.Brake aperture is used to define the depth of trampling of brake pedal, such as can be stopped with the signal of one 0~100% to state
Vehicle aperture, 0 representative do not touch on the brake, and 100% represents brake maximum opening of stepping on.
Furthermore, the acquisition of a variety of vehicle parameter values is collected according to the default sampling interval.It is appreciated that
, the sampling interval is smaller, and the number of the vehicle parameter value obtained in the unit interval is more, the true work of reflection that can be better
Condition.The example nonrestrictive as one, default sampling interval can be set as 0.1s.
Wherein, the vehicle parameter value can pass through Vehicle Controller local area network (Controller Area
Network, CAN) it is got in the form of vehicle body CAN signal.
In the specific implementation of step S102, determine that driving fierce grade includes according to a variety of vehicle parameter values：Meter
Calculate the respective average value of a variety of vehicle parameters.
Specifically, for each vehicle parameter value, when collecting current driving parameter value every time, calculate and determine currently
It averagely drives a vehicle parameter value.
With reference to figure 2, Fig. 2 be a kind of calculating in the embodiment of the present invention averagely drive a vehicle parameter value method flow chart.Institute
The method for stating calculating averagely driving parameter value may comprise steps of S201 to S206：
Step S201：A variety of vehicle parameter values are gathered according to the default sampling interval.
In specific implementation, the execution of step S201 refers to the description of step S101 and S102 in Fig. 1 and is performed,
Details are not described herein again.
Step S202：Judge whether current driving parameter value meets default maintenance condition；It, can be with when judging result for when being
Perform step S203；Conversely, it can then perform step S204.
Step S203：Parameter value of currently averagely driving a vehicle is equal to preceding average row vehicle parameter value.
Specifically, for different vehicle parameters, there is different default maintenance conditions.
In specific implementation, when the vehicle parameter is speed parameter, the default maintenance condition includes：It is described current
Vehicle parameter value is equal to a preceding average row vehicle parameter value or the current driving parameter value is less than preset vehicle speed threshold value.
It will be appreciated by those skilled in the art that in fact, it is equal to preceding average row vehicle parameter in current driving parameter value
During value, in current averagely driving parameter value corresponding according to current driving parameter value calculation, that is, to current driving parameter
Value and preceding average row vehicle parameter value carry out average computation, and thus obtained current parameter value of averagely driving a vehicle once is put down before being equal to
Equal vehicle parameter value.
When current driving parameter value is less than preset vehicle speed threshold value, parameter value of currently averagely driving a vehicle is equal to a preceding average row
Vehicle parameter value.In other words, when the speed parameter collected is low speed, the driving severity for not necessarily representing user turns to
Flat grade, it is determined here that being equal to preceding average row vehicle parameter value for current parameter value of averagely driving a vehicle.Because vehicle meeting sometimes
Since odjective cause has to run into congestion road conditions or vehicle in low-speed running state, such as vehicle and just wait in crawling
Red light or vehicle are being moved backward storage.Wherein, the example nonrestrictive as one, preset vehicle speed threshold value can be set as
2kph。
Still further, the preceding average row vehicle parameter value is once determined before parameter value of currently averagely driving a vehicle
Average driving parameter value.Namely by presetting in the vehicle parameter value that the sampling interval collects, in time with currently adopting
The adjacent preceding vehicle parameter value for once sampling acquisition of sample is referred to as a preceding vehicle parameter value, by the embodiment of the present invention
The method for calculating parameter value of averagely driving a vehicle can calculate according to a preceding vehicle parameter value and determine preceding average row vehicle parameter
Value.
In specific implementation, when the vehicle parameter is accelerator open degree parameter, the default maintenance condition includes：It is described
Current driving parameter value is equal to a preceding average row vehicle parameter value or the current driving parameter value is less than default accelerator open degree
Threshold value, alternatively, automobile gear level is neutral gear.
Wherein, the situation of preceding average row vehicle parameter value is equal on current driving parameter value, refer to corresponding driving
Parameter is the associated description that speed parameter carries out, and details are not described herein again.
When current driving parameter value is less than default accelerator open degree threshold value, parameter value of currently averagely driving a vehicle once is put down before being equal to
Equal vehicle parameter value.In other words, when the accelerator open degree parameter collected is low aperture, the driving for not necessarily representing user swashs
Strong degree turns to flat grade, it is determined here that being equal to preceding average row vehicle parameter value for current parameter value of averagely driving a vehicle.Because
Sometimes vehicle can have to running into congestion road conditions or vehicle just in light state of stepping on the gas, such as vehicle due to odjective cause
In crawling red light or vehicle is waited to move backward storage.Wherein, the example nonrestrictive as one presets accelerator open degree
Threshold value can be set as 5%.
When automobile gear level is neutral gear, parameter value of currently averagely driving a vehicle is equal to preceding average row vehicle parameter value.It that is to say
Say, when automobile gear level be neutral gear when, no matter accelerator open degree size, do not represent user driving severity turn to flat grade
Or fierce rank, it is determined here that being equal to preceding average row vehicle parameter value for current parameter value of averagely driving a vehicle.Because work as vehicle
When hanging up neutral gear, gearbox is kept completely separate with driving wheel, and vehicle power will not transport to driving wheel, true so as to not represent user
Positive driving severity.
In specific implementation, when the vehicle parameter is brake aperture parameter, the default maintenance condition includes：It is described
Current driving parameter value is equal to preceding average row vehicle parameter value, is opened alternatively, the current driving parameter value is less than default brake
Lower limiting value is spent or more than default brake aperture upper limit value, alternatively, automobile gear level is neutral gear.
Wherein, it is equal to preceding average row vehicle parameter value on current driving parameter value, current driving parameter value is less than in advance
If brake aperture lower limiting value and the situation that automobile gear level is neutral gear, refer to corresponding vehicle parameter as speed parameter and driving
The associated description that parameter carries out for brake aperture parameter, details are not described herein again.Wherein, the example nonrestrictive as one, in advance
If brake aperture lower limiting value can be set as 5%.
When current driving parameter value is more than default brake aperture upper limit value, parameter value of currently averagely driving a vehicle be equal to it is preceding once
It averagely drives a vehicle parameter value.As, when the brake aperture parameter collected is high aperture, the driving for not necessarily representing user is fierce
Degree turns to fierce rank, it is determined here that being equal to preceding average row vehicle parameter value for current parameter value of averagely driving a vehicle.Because have
When vehicle can be had to due to odjective cause in tracking tramping braking state, such as vehicle under not flameout state by tracking tramping brake
Pedal stops or vehicle meets with an accidet and causes emergency brake.Wherein, the example nonrestrictive as one is preset in brake aperture
Limit value can be set as 70%.
Step S204：Judge whether current driving parameter value is more than preceding average row vehicle parameter value, when judging result is
When being, step S205 can be performed；Conversely, it can then perform step S206.
Step S205：Parameter value of currently averagely driving a vehicle, which is equal to the preceding average row vehicle parameter value, increases default accumulated value
And no more than default vehicle parameter upper limit value.
It specifically, can be in a preceding average row when current driving parameter value is more than preceding average row vehicle parameter value
Increase default accumulated value on the basis of vehicle parameter value as parameter value of currently averagely driving a vehicle, and current averagely driving parameter value does not surpass
Cross default vehicle parameter upper limit value.
The default accumulated value of speed parameter can be multiplied by default cumulative slope by sampling time interval and be obtained, wherein default
Cumulative slope can be set as fixed slope value.The example nonrestrictive as one, the default accumulated value of speed parameter can be with
It is set as 0.5kph, the default cumulative slope of speed parameter can be set as 5kph/s.
Accelerator open degree parameter and brake aperture parameter default accumulated value again may be by sampling time interval be multiplied by it is pre-
If cumulative slope obtains, wherein default cumulative slope can be set as fixed slope value.The example nonrestrictive as one, oil
The default accumulated value of door aperture parameter and brake aperture parameter can be set as the 5 ‰ of preceding average row vehicle parameter value, throttle
The default cumulative slope of aperture parameter and brake aperture parameter can be set as 5%/s.
The default vehicle parameter upper limit value of speed parameter can be set as 300kph, accelerator open degree parameter and brake aperture ginseng
Several default vehicle parameter upper limit values can be set as 100%.
In terms of average speed calculating, existing average speed statistical analysis technique includes probability average speed statistics side
Method, time mean speed statistical method and weighted average speed statistical method.
Specifically, probability average speed statistical method can be calculated by counting, and draw the use of each speed section
Probability distribution takes the median of each speed section to calculate probability average speed for calculating benchmark.Time mean speed statistical method
Can be using the period as measuring basis, count the average speed of several days same period, to the speed of each period into
Row is average.Weighted average speed statistical method can be one section only measured in the similar period, and other times section presses similar journey
Degree defines a weighting coefficient.
For some vehicles, driving cycle more determines and possesses uniformity, such as the vehicle of bus type, fits
In using above-mentioned average speed statistical method of the prior art.But for the uncertain general vehicle of driving cycle, due to
The average method summed again of multi-period speed is considered, operand is larger, therefore appropriate is relatively low.
Middle compared with the prior art to use average value or median algorithm, the average driving parameter value of the embodiment of the present invention is calculated
Method only increases default accumulated value every time, significantly can't accordingly increase because the vehicle parameter value currently collected is very high
It averagely drives a vehicle before sovolin parameter value, so as to be not readily susceptible to the influence of Outliers, can be more true and reflect in real time
Driving cycles.Moreover, because gathered information all simply carries out smaller amendment, corresponding electricity in historical information each time
Repeatedly being mutated will not occur in a short time in equalization point, therefore avoid due to the amplitude of variation of the average driving parameter value of acquisition
Greatly, continually electric quantity balancing point is adjusted.
On the other hand, the average driving parameter value algorithm of the embodiment of the present invention is according to the vehicle parameter value meter currently collected
Calculate parameter value of averagely driving a vehicle, it is not required that wait longer acquisition time, can reflect driving cycles more in real time.
Step S206：When current driving parameter value is less than the preceding average row vehicle parameter value, current average driving ginseng
Numerical value is equal to the preceding average row vehicle parameter value and reduces default decrement value and not less than default vehicle parameter lower limiting value.
It specifically, can be in a preceding average row when current driving parameter value is less than preceding average row vehicle parameter value
Default decrement value is reduced on the basis of vehicle parameter value as parameter value of currently averagely driving a vehicle, and current parameter value of averagely driving a vehicle is not small
In default vehicle parameter lower limiting value.
The example nonrestrictive as one, the default decrement value of speed parameter can be set as 0.5kph, speed parameter
Default decreasing slope can be set as 5kph/s.Decrement value is preset in the reduction of accelerator open degree parameter and brake aperture parameter can be with
It is set as the 5 ‰ of preceding average row vehicle parameter value, the default decreasing slope of accelerator open degree parameter and brake aperture parameter can be with
It is set as 5%/s.The default vehicle parameter lower limiting value of speed parameter can be set as -300kph, accelerator open degree parameter and brake
The default vehicle parameter lower limiting value of aperture parameter can be set as 0.
In relation to other descriptions that decrement value and default upper lower limit value are preset to vehicle parameter, refer to corresponding step S205 into
Capable associated description, details are not described herein again.
With continued reference to Fig. 1, in the specific implementation of step S102, it is fierce to determine to drive according to a variety of vehicle parameter values
Grade further includes：The fierce grade of the driving is determined according to a variety of respective average values of vehicle parameter.
Wherein, the fierce grade of the driving may be employed intelligent algorithm analysis conventional in the prior art and determine, such as mould
Paste algorithm, the rule of probability, neural network algorithm.Typically, the average value of speed parameter is bigger, accelerator open degree parameter is averaged
Value is bigger and the average value of brake aperture parameter is bigger, and the driving severity of the definite fierce grade instruction of driving is got over
It is high.
Furthermore, in addition to speed parameter, accelerator open degree parameter, brake aperture parameter, vehicle parameter can also include
Average throttle rate of change, accelerator and brake switching frequency, average maximum throttle aperture, average maximum brake aperture, gearshift frequency
With height speed degree of distribution parameter.In above-mentioned a variety of vehicle parameters, it can select one or more as the defeated of intelligent algorithm
Enter condition, analysis, which obtains, drives fierce grade.Average throttle rate of change, accelerator and brake switching frequency, average maximum throttle are opened
Degree, average maximum brake aperture, gearshift frequency and height speed degree of distribution parameter can join according to speed parameter, accelerator open degree
Number, brake aperture parameter are calculated or can also directly acquire, such as obtained from CAN bus.
In the specific implementation of step S103, fierce grade adjusting electric quantity balancing point is driven according to described, described drive is swashed
The driving severity of strong grade instruction is higher, and the electric quantity balancing point is higher.
Wherein, if driving severity is more fierce, electric quantity balancing point can be improved, is more provided using engine
Driving force obtains stronger dynamic property, meets the needs of user drives handling for higher.If drive severity more
Gently, then electric quantity balancing point can be reduced in due course, based on motor drive, user is made to obtain smoothly manipulation sense, is carried simultaneously
The capacity usage ratio of high vehicle.
The embodiment of the present invention can adjust electric quantity balancing point to change the main of automobile according to the driving severity of user
So as to obtain different degrees of vehicle dynamic quality, the different user of severity is driven to dynamic property not to meet for power source
Same demand.
The example nonrestrictive as one, driving fierce grade can be divided into three classes：Gently, commonly, it is fierce.It is driving
When fierce grade is gentle, using relatively low electric quantity balancing point, for example, it can be set to being 23%SOC.It is driving fierce grade
When common, using electric quantity balancing point placed in the middle, for example, it can be set to being 30%SOC.When it is fierce to drive fierce grade, use
Higher electric quantity balancing point, for example, it can be set to being 40%SOC.
Electric quantity balancing point is adjusted as single vehicle parameter merely with speed parameter in compared with the prior art, the present invention is real
It applies example and fierceness is driven to user using a variety of vehicle parameters (such as speed parameter, accelerator open degree parameter, brake aperture parameter etc.)
Grade is divided, and it is more careful and accurate to divide, and hybrid electric vehicle electric quantity corresponding with driving fierce grade is put down as a result,
Weigh point setting it is also more complicated, so as to obtain finer regulating effect, better meet different user to dynamic property not
Same demand.
Fig. 3 is a kind of structural representation of the regulating device of hybrid electric vehicle electric quantity equalization point in the embodiment of the present invention
Figure.As shown in figure 3, the regulating device 30 for opening hybrid electric vehicle electric quantity equalization point can include：Collecting unit 301,
Determination unit 302 and adjustment unit 303.
Furthermore, collecting unit 301 is suitable for gathering a variety of vehicle parameter values.Determination unit 302 is suitable for according to
A variety of vehicle parameter values determine to drive fierce grade.Adjustment unit 303 is suitable for being put down according to the fierceness grade adjusting electricity that drives
Weigh point, and the driving severity of the fierce grade instruction of driving is higher, and the electric quantity balancing point is higher.
Wherein it is determined that unit 302 can include computation subunit 304 and determination subelement 305.Computation subunit 304 is suitable
In calculating a variety of respective average values of vehicle parameter, determination subelement 305 is suitable for respective flat according to a variety of vehicle parameters
Average determines the fierce grade of the driving.
Wherein, computation subunit 304 can include the first computation subunit 306, suitable for for each vehicle parameter value,
It when collecting current driving parameter value every time, calculates and determines current parameter value of averagely driving a vehicle, a variety of vehicle parameter values are
It is collected according to the default sampling interval.Wherein, it is described if the current driving parameter value meets default maintenance condition
Parameter value of currently averagely driving a vehicle is equal to preceding average row vehicle parameter value, and the preceding average row vehicle parameter value is put down currently
Average driving parameter value once definite before equal vehicle parameter value；If the current driving parameter value be more than it is described before once put down
Equal vehicle parameter value, then the current parameter value of averagely driving a vehicle is default cumulative equal to the preceding average row vehicle parameter value increase
It is worth and no more than default vehicle parameter upper limit value；If the current driving parameter value is less than a preceding average row vehicle,
The current parameter value of averagely driving a vehicle is equal to the preceding average row vehicle parameter value and reduces default decrement value and not less than default
Vehicle parameter lower limiting value.
More detailed contents of regulating device 30 on the hybrid electric vehicle electric quantity equalization point refer to previously for
The associated description of the adjusting method of hybrid electric vehicle electric quantity equalization point, which is not described herein again.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Relevant hardware to be instructed to complete by program, which can be stored in computer readable storage medium, to store
Medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the scope of restriction.
Claims (15)
1. a kind of adjusting method of hybrid electric vehicle electric quantity equalization point, which is characterized in that comprise the following steps：
Gather a variety of vehicle parameter values；
It determines to drive fierce grade according to a variety of vehicle parameter values；
Fierce grade adjusting electric quantity balancing point is driven according to described, the driving severity for driving fierce grade instruction is got over
Height, the electric quantity balancing point are higher.
2. the adjusting method of hybrid electric vehicle electric quantity equalization point according to claim 1, which is characterized in that described a variety of
Vehicle parameter value is selected from：Speed parameter, accelerator open degree parameter and brake aperture parameter.
3. the adjusting method of hybrid electric vehicle electric quantity equalization point according to claim 1, which is characterized in that according to described
A variety of vehicle parameter values determine that driving fierce grade includes：
Calculate the respective average value of a variety of vehicle parameters；
The fierce grade of the driving is determined according to a variety of respective average values of vehicle parameter.
4. the adjusting method of hybrid electric vehicle electric quantity equalization point according to claim 3, which is characterized in that the calculating
A variety of respective average values of vehicle parameter include：
A variety of vehicle parameter values are collected according to the default sampling interval, for each vehicle parameter value, each
When collecting current driving parameter value, calculate and determine current parameter value of averagely driving a vehicle；
Wherein, if the current driving parameter value meets default maintenance condition, the current averagely driving parameter value is equal to
Preceding average row vehicle parameter value, the preceding average row vehicle parameter value are once determined before parameter value of currently averagely driving a vehicle
Average driving parameter value；If the current driving parameter value is more than the preceding average row vehicle parameter value, described to work as
Preceding parameter value of averagely driving a vehicle, which is equal to the preceding average row vehicle parameter value, to be increased default accumulated value and joins no more than default driving
Number upper limit value；If the current driving parameter value is less than a preceding average row vehicle, the vehicle parameter that is currently averaged
Value is equal to the preceding average row vehicle parameter value and reduces default decrement value and not less than default vehicle parameter lower limiting value.
5. the adjusting method of hybrid electric vehicle electric quantity equalization point according to claim 4, which is characterized in that when the row
When vehicle parameter is speed, the default maintenance condition includes：The current driving parameter value is equal to preceding average row vehicle parameter
Value or the current driving parameter value are less than preset vehicle speed threshold value.
6. the adjusting method of hybrid electric vehicle electric quantity equalization point according to claim 4, which is characterized in that when the row
When vehicle parameter is accelerator open degree parameter, the default maintenance condition includes：The current driving parameter value is equal to preceding once average
Vehicle parameter value or the current driving parameter value are less than default accelerator open degree threshold value, alternatively, automobile gear level is neutral gear.
7. the adjusting method of hybrid electric vehicle electric quantity equalization point according to claim 4, which is characterized in that when the row
When vehicle parameter is brake aperture parameter, the default maintenance condition includes：The current driving parameter value is equal to preceding once average
Vehicle parameter value, alternatively, the current driving parameter value is less than default brake aperture lower limiting value or more than default brake aperture
Upper limit value, alternatively, automobile gear level is neutral gear.
8. a kind of regulating device of hybrid electric vehicle electric quantity equalization point, which is characterized in that including：
Collecting unit, suitable for gathering a variety of vehicle parameter values；
Determination unit, suitable for determining to drive fierce grade according to a variety of vehicle parameter values；
Adjustment unit, suitable for driving fierce grade adjusting electric quantity balancing point according to described, the fierce grade instruction of driving is driven
It is higher to sail severity, the electric quantity balancing point is higher.
9. the regulating device of hybrid electric vehicle electric quantity equalization point according to claim 8, which is characterized in that the acquisition
Unit is suitable for a variety of vehicle parameter values of the acquisition selected from speed parameter, accelerator open degree parameter and aperture parameter of braking.
10. the regulating device of hybrid electric vehicle electric quantity equalization point according to claim 8, which is characterized in that described true
Order member includes：
Computation subunit, suitable for calculating a variety of respective average values of vehicle parameter；
Determination subelement, suitable for determining the fierce grade of the driving according to a variety of respective average values of vehicle parameter.
11. the regulating device of hybrid electric vehicle electric quantity equalization point according to claim 10, which is characterized in that the meter
Operator unit includes：
First computation subunit, suitable for for each vehicle parameter value, when collecting current driving parameter value every time, calculating
Determine current parameter value of averagely driving a vehicle, a variety of vehicle parameter values are collected according to the default sampling interval；
Wherein, if the current driving parameter value meets default maintenance condition, the current averagely driving parameter value is equal to
Preceding average row vehicle parameter value, the preceding average row vehicle parameter value are once determined before parameter value of currently averagely driving a vehicle
Average driving parameter value；If the current driving parameter value is more than the preceding average row vehicle parameter value, described to work as
Preceding parameter value of averagely driving a vehicle, which is equal to the preceding average row vehicle parameter value, to be increased default accumulated value and joins no more than default driving
Number upper limit value；If the current driving parameter value is less than a preceding average row vehicle, the vehicle parameter that is currently averaged
Value is equal to the preceding average row vehicle parameter value and reduces default decrement value and not less than default vehicle parameter lower limiting value.
12. the regulating device of hybrid electric vehicle electric quantity equalization point according to claim 11, which is characterized in that when described
When vehicle parameter is speed, the default maintenance condition includes：The current driving parameter value is joined equal to a preceding average row vehicle
Numerical value or the current driving parameter value are less than preset vehicle speed threshold value.
13. the regulating device of hybrid electric vehicle electric quantity equalization point according to claim 11, which is characterized in that when described
When vehicle parameter is accelerator open degree parameter, the default maintenance condition includes：The current driving parameter value is once put down before being equal to
Equal vehicle parameter value or the current driving parameter value are less than default accelerator open degree threshold value, alternatively, automobile gear level is neutral gear.
14. the regulating device of hybrid electric vehicle electric quantity equalization point according to claim 11, which is characterized in that when described
When vehicle parameter is brake aperture parameter, the default maintenance condition includes：The current driving parameter value is once put down before being equal to
Equal vehicle parameter value, alternatively, the current driving parameter value is less than default brake aperture lower limiting value or is opened more than default brake
Upper limit value is spent, alternatively, automobile gear level is neutral gear.
15. a kind of automobile, which is characterized in that balanced including claim 8 to 14 any one of them hybrid electric vehicle electric quantity
The regulating device of point.
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