CN104787027B - A kind of power-control method and device of vehicle - Google Patents
A kind of power-control method and device of vehicle Download PDFInfo
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- CN104787027B CN104787027B CN201410023777.XA CN201410023777A CN104787027B CN 104787027 B CN104787027 B CN 104787027B CN 201410023777 A CN201410023777 A CN 201410023777A CN 104787027 B CN104787027 B CN 104787027B
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- driving unit
- electrical driving
- charged state
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/18—Distance travelled
-
- 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
- Y02T10/62—Hybrid vehicles
Abstract
The present invention provides a kind of power-control method of vehicle and devices, the described method includes: obtaining the first coefficient and the second coefficient, wherein, the first coefficient characterization vehicle uses the current tendency degree value being driven by electricity, first coefficient determines that the history average residual charge value of the electrical driving unit and the real-time residual electric quantity of electrical driving unit described in the accumulative mileage number and vehicle travel process of the vehicle are related according to the history average residual charge value of the electrical driving unit；Second coefficient characterizes the current charging stability of the electrical driving unit of the vehicle；The charged state of the electrical driving unit is determined according to first coefficient and the second coefficient；The power drive mode of the vehicle is selected according to the charged state of the electrical driving unit.The method and device can make better power drive decision, so as to better meet the actual use demand of user.
Description
Technical field
The present invention relates to dynamic Control technical fields, more particularly to the power-control method and device of a kind of vehicle.
Background technique
In the prior art, generally come pair according only to the remaining capacity of the driving energy demand of vehicle and electrical driving unit
The dynamical system of vehicle is controlled, have ignored vehicle can also influence in actual use dynamical system control it is many its
His factor.That is, existing vehicle power control method can not better meet the practical need that user uses vehicle
It asks.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of power control unit of new vehicle, with according to user to vehicle
Situation is actually used the power drive mode of vehicle is arranged, to better meet the actual demand that user uses vehicle.
A kind of power-control method of vehicle is provided in the embodiment of invention, which comprises obtains the first coefficient
With the second coefficient, in which: the first coefficient characterization vehicle uses the current tendency degree value being driven by electricity, first coefficient
It is determined according to the history average residual charge value of the electrical driving unit, the history average residual electricity of the electrical driving unit
The real-time residual electric quantity phase of electrical driving unit described in accumulative mileage number and vehicle travel process of the magnitude with the vehicle
It closes；Second coefficient characterizes the current charging stability of the electrical driving unit of the vehicle, and second coefficient is according to working as
Fluctuation situation between first coefficient of previous vehicle driving and the first coefficient of last vehicle driving determines；According to described
One coefficient and the second coefficient determine the charged state of the electrical driving unit；According to the charged state of the electrical driving unit
Select the power drive mode of the vehicle.
Optionally, the value range of first coefficient includes the firstth area divided according to the sequence of numerical value from big to small
Between, second interval and 3rd interval；The value range of second coefficient includes being divided into according to the sequence of numerical value from big to small
5th section and the 6th section；The charging shape that the electrical driving unit is determined according to first coefficient and the second coefficient
State includes:
When first coefficient is in the first interval and second coefficient is in the 5th section, institute is determined
The charged state for stating electrical driving unit is regular charged state；
When first coefficient is in the 3rd interval and second coefficient is in the 5th section, institute is determined
The charged state for stating electrical driving unit is regular not charged state；
When second coefficient is in the 6th section, determine that the charged state of the electrical driving unit is irregular
State.
Optionally, the charged state according to the electrical driving unit selects the power drive mode packet of the vehicle
It includes:
When the charged state of the electrical driving unit is regular charged state, by the power drive mould of the vehicle
Formula is set as the first drive mode, and first drive mode includes: preferentially to drive the vehicle using the electrical driving unit
?；
When the charged state of the electrical driving unit is regular not charged state, by the power drive of the vehicle
Mode setting is the second drive mode, and second drive mode includes: preferentially to drive the vehicle using engine-driven units
?；
When the charged state of the electrical driving unit is to stablize irregular state, by the power drive mould of the vehicle
Formula is set as third drive mode, the third drive mode include: when the remaining capacity of the electrical driving unit is greater than or
When equal to the first default charge value, the vehicle is driven using the electrical driving unit, when remaining for the electrical driving unit
When remaining electricity is less than the first default charge value, the vehicle is driven using engine-driven units.
Optionally, first drive mode further include: use and start when driving energy demand is higher than preset energy value
Machine driving unit drives the vehicle.
Optionally, second drive mode further include: the electricity of the electrical driving unit is kept to be more than or equal to second
Default electricity, the second default electricity are the minimum amount of power for carrying out electric start to the vehicle.
Optionally, described that the charged state of the electrical driving unit is determined also according to first coefficient and the second coefficient
It include: when first coefficient be in the second interval and second coefficient is in the 5th section, described in determination
The charged state of electrical driving unit is the insufficient charged state of rule.
Optionally, the acquisition methods of first coefficient are as follows:
Wherein, DMC(i)For the first coefficient value of current vehicle driving, DMC(i-1)For the first system of last vehicle driving
Numerical value, Kchg(i-1)For the second coefficient value of last vehicle driving, φ (SOC) is the remaining capacity letter of the electrical driving unit
Numerical value,For history average residual charge value, the value range of the first coefficient is (- 1,1), the second coefficient
Value range is (1,10), and the value range of the remaining capacity functional value of the electrical driving unit is (- 1,1).
Optionally, the acquisition methods of second coefficient are as follows:
Wherein, Kchg(i)For the second coefficient value of current vehicle driving, Kchg(i-1)For the second system of last vehicle driving
Numerical value, DMC(i)For the first coefficient value of current vehicle driving, DMC(i-1)For the first coefficient value of last vehicle driving,
DMCnordeltaFor the reference fluctuation range of the first coefficient, KchgsenFor the coefficient of stability, the value range of the first coefficient is (- 1,1),
The value range of second coefficient is (1,10).
The embodiments of the present invention also provide a kind of power control unit of vehicle, described device includes: that control coefrficient obtains
Unit is taken, for obtaining the first coefficient and the second coefficient, wherein the first coefficient characterization vehicle is current using being driven by electricity
It is inclined to degree value, first coefficient is determined according to the history average residual charge value of the electrical driving unit, the electric power
Electric power described in the history average residual charge value of driving unit and the accumulative mileage number of the vehicle and vehicle travel process drives
The real-time residual electric quantity of moving cell is related；The current charging that second coefficient characterizes the electrical driving unit of the vehicle is steady
Fixed degree, second coefficient is according between the first coefficient of current secondary vehicle driving and the first coefficient of last vehicle driving
Situation is fluctuated to determine；Charged state determination unit, for being driven by electricity according to first coefficient and the determination of the second coefficient
The charged state of unit；Drive mode setting unit, for selecting the vehicle according to the charged state of the electrical driving unit
Power drive mode.
Optionally, the value range of first coefficient includes the firstth area divided according to the sequence of numerical value from big to small
Between, second interval and 3rd interval；The value range of second coefficient includes being divided into according to the sequence of numerical value from big to small
5th section and the 6th section；The charged state determination unit is used for:
When first coefficient is in the first interval and second coefficient is in the 5th section, institute is determined
The charged state for stating electrical driving unit is regular charged state；
When first coefficient is in the 3rd interval and second coefficient is in the 5th section, institute is determined
The charged state for stating electrical driving unit is regular not charged state；
When second coefficient is in the 6th section, determine that the charged state of the electrical driving unit is irregular
State.
Optionally, the drive mode setting unit is used for:
When the charged state of the electrical driving unit is regular charged state, by the power drive mould of the vehicle
Formula is set as the first drive mode, in first drive mode, preferentially drives the vehicle using the electrical driving unit
?；
When the charged state of the electrical driving unit is regular not charged state, by the power drive of the vehicle
Mode setting is the second drive mode, in second drive mode, preferentially drives the vehicle using engine-driven units
?；
When the charged state of the electrical driving unit is to stablize irregular state, by the power drive mould of the vehicle
Formula is set as third drive mode, in third drive mode, when the remaining capacity of the electrical driving unit is greater than or equal to
When the first default charge value, the vehicle is driven using the electrical driving unit, when the residue electricity of the electrical driving unit
When amount is less than the first default charge value, the vehicle is driven using engine-driven units.
Optionally, the charged state determination unit is also used to: when first coefficient be in the second interval and
Second coefficient is in the 5th section, determines the charged state of the electrical driving unit for the insufficient charging shape of rule
State.
Compared with prior art, technical solution of the present invention has the advantage that
In the above-mentioned technical solutions, the first coefficient characterization vehicle uses the current tendency degree value being driven by electricity, institute
The first coefficient is stated to be determined according to the history average residual charge value of the electrical driving unit, and the electrical driving unit is gone through
Electrical driving unit described in accumulative mileage number and vehicle travel process of the history average residual charge value with the vehicle it is real-time
Residual electric quantity is related, and second coefficient characterizes second described in the current charging stability of the electrical driving unit of the vehicle
Coefficient is determined according to the fluctuation situation between the first coefficient of current secondary vehicle driving and the first coefficient of last vehicle driving.
It is therefore based on that is, first coefficient and the second coefficient reflect the factors such as mileage and the charging habit of user
The power-control method of first coefficient and the second coefficient can be made preferably based on the actual use situation of user
Power drive decision, so as to better meet the actual use demand of user.
Detailed description of the invention
Fig. 1 is the flow chart of the power-control method of vehicle in the embodiment of the present invention；
Fig. 2 is the charged state for determining electrical driving unit in the embodiment of the present invention according to the first coefficient and the second coefficient
Schematic diagram；
Fig. 3 is showing of being started to engine-driven units or closed according to driving energy demand in the embodiment of the present invention
It is intended to；
Fig. 4 is the structural schematic diagram of the power control unit of vehicle in the embodiment of the present invention.
Specific embodiment
It has been investigated that the factors such as mileage and charging habit of user are also right in the power control system of vehicle
Power-actuated control has an impact, these factors are able to reflect the actual use demand of user, therefore are fully considering these
Made power drive decision, will better meet the actual use demand of user in the case where factor.
To more fully understand those skilled in the art and realizing the present invention, referring to the drawings, pass through specific embodiment
It is described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, therefore the present invention is not by the limit of following public specific embodiment
System.
Fig. 1 is the flow chart of the power-control method of vehicle in the embodiment of the present invention.
Referring to FIG. 1, the power-control method of the vehicle includes: step S100 to step S102.
Step S100 obtains the first coefficient and the second coefficient.
In an embodiment of the present invention, the first coefficient characterization vehicle uses the current tendency degree value being driven by electricity,
For example, when to be inclined to use the degree that is driven by electricity bigger for the bigger explanation of first coefficient value, conversely, working as first coefficient value
It is smaller that smaller explanation is inclined to use the degree being driven by electricity.
First coefficient is determined according to the history average residual charge value of the electrical driving unit, specifically, described
Electricity described in the history average residual charge value of electrical driving unit and the accumulative mileage number of the vehicle and vehicle travel process
The real-time residual electric quantity of power drive unit is related.For example, the accumulative mileage number is 1000 kilometers, according to described 1000 kilometers
In each kilometer of real-time residual electric quantity can obtain each kilometer in described 1000 kilometers of average residual charge value.
First coefficient reflects the uneven of the residual electric quantity of electrical driving unit to a certain extent, can also be with
Reflect user's habit.For example, certain user he driven every time after the electricity of electrical driving unit can be full of, then the electricity
The history average residual charge value of power drive unit can maintain a high level.
Although the history average residual charge value of the electrical driving unit is caused to maintain a high horizontal client
Habit is there are diversity, but the result is that inevitable caused by this kind of customer habits, that is, the electrical driving unit
History average residual charge value can maintain a high level.And when the history average residual electricity of the electrical driving unit
Magnitude maintains a high level, illustrates that vehicle can use electrical driving unit as much as possible, that is to say, that uses electricity
The tendency degree of power drive is bigger.
First coefficient can reflect that user is accustomed to a certain extent, and directly characterization vehicle is worked as using what is be driven by electricity
It leans forward to degree value, in specific implementation, the charging of the electrical driving unit of the vehicle can be determined in conjunction with the second coefficient
Stability.For example, it may be possible within certain a period of time, user be short distance drive vehicle, even if charging is less frequent, still
The history average residual charge value of the electrical driving unit can also maintain a high level.Therefore, in order to obtain more
Reflect customer habits well, then the current charging that the electrical driving unit of the vehicle can be obtained by the second coefficient is stablized
Degree.
In an embodiment of the present invention, second coefficient characterizes the current charging of the electrical driving unit of the vehicle surely
Fixed degree, second coefficient is according between the first coefficient of current secondary vehicle driving and the first coefficient of last vehicle driving
Situation is fluctuated to determine.For example, the difference between the first coefficient of current secondary vehicle driving and the first coefficient of last vehicle driving
Away from smaller, then the second coefficient is bigger, that illustrates that the electrical driving unit of the vehicle has preferable charging stability, also
It is to say, user can charge regularly or regular not charge.
In addition, since the habit of client itself can also change at any time, first coefficient and the second coefficient
And updated with vehicle drive number, that is to say, that after each vehicle driving stops, by this first coefficient and second
Coefficient is stored in memory, and the foundation of the first coefficient and the second coefficient, next vehicle driving are calculated when using as next vehicle driving
When starting, the first coefficient of last vehicle driving and the second coefficient are read.
Specifically, the acquisition methods of first coefficient are as follows:
Wherein, DMC(i)For the first coefficient value of current vehicle driving, DMC(i-1)For the first system of last vehicle driving
Numerical value, Kchg(i-1)For the second coefficient value of last vehicle driving, φ (SOC) is the remaining capacity letter of the electrical driving unit
Numerical value,For history average residual charge value, the value range of the first coefficient is (- 1,1), the second coefficient
Value range is (1,10), and the value range of the remaining capacity functional value of the electrical driving unit is (- 1,1).
It should be noted that φ (SOC) is the remaining capacity functional value of the electrical driving unit, that is to say, that φ
(SOC) reflect the residual electric quantity of the electrical driving unit, but in order to play the role of calibration, and the entire control system of raising
Stability, φ (SOC) is the function of the remaining capacity about the electrical driving unit based on practical engineering application.The letter
Several specific manifestation forms can be determined according to practical engineering application situation.
The acquisition methods of second coefficient are as follows:
Wherein, Kchg(i)For the second coefficient value of current vehicle driving, Kchg(i-1)For the second system of last vehicle driving
Numerical value, DMC(i)For the first coefficient value of current vehicle driving, DMC(i-1)For the first coefficient value of last vehicle driving,
DMCnordeltaFor the reference fluctuation range of the first coefficient, KchgsenFor the coefficient of stability, the value range of the first coefficient is (- 1,1),
The value range of second coefficient is (1,10).
Step S101 determines the charged state of the electrical driving unit according to first coefficient and the second coefficient.
Referring to FIG. 2, establishing the coordinate system about the first coefficient and the second coefficient, wherein the first coefficient DMC's takes
Being worth range is (- 1,1), and the value range of the second COEFFICIENT K chg is (1,10).
As shown in Fig. 2, the value range of the first coefficient DMC includes the divided according to numerical value sequence from big to small
One section, second interval and 3rd interval.The first interval, second interval and 3rd interval can be according to practical situations
To divide.The value range of second coefficient includes being divided into the 5th section and the 6th area according to the sequence of numerical value from big to small
Between.5th section and the 6th section can also be divided according to practical situations.
Specifically, when first coefficient is in the first interval, illustrate that the value of the first coefficient is larger, then described
The residual electric quantity of the electrical driving unit of vehicle is larger, that is to say, that and it is bigger that vehicle is inclined to use the degree being driven by electricity, with
This when the second coefficient is in the 5th section, illustrates that the second coefficient value is bigger, then the charging of electrical driving unit is steady simultaneously
It is qualitative relatively good.According to above-mentioned analysis, it can determine that the residual electric quantity of the electrical driving unit of the vehicle is larger and always
It keeps stablizing, may thereby determine that user is to carry out regular charging to the electrical driving unit, at this point, described be driven by electricity
The charged state of unit is regular charged state.
When first coefficient is in the 3rd interval, illustrate that the value of the first coefficient is smaller, then the vehicle
The residual electric quantity of electrical driving unit is smaller, that is to say, that it is smaller that vehicle is inclined to use the degree being driven by electricity, same with this
When, when the second coefficient is in the 5th section, illustrate that the second coefficient value is bigger, then the charge stability of electrical driving unit
It is relatively good, according to above-mentioned analysis, it can determine that the residual electric quantity of the electrical driving unit of the vehicle is smaller and is always maintained at
Stablize, may thereby determine that user be to the electrical driving unit carry out it is regular do not charge, at this point, described be driven by electricity list
The charged state of member is regular not charged state.
When the second coefficient is in the 6th section, illustrate that the second coefficient value is smaller, then the charging of electrical driving unit
Stability is general, according to above-mentioned analysis, determines that the charged state of the electrical driving unit is irregular state.Of the invention
In embodiment, no matter first coefficient value is in which of first interval, second interval or 3rd interval section, as long as
Second coefficient is in the 6th section and determines that the charged state of the electrical driving unit is irregular state.
In an embodiment of the present invention, when first coefficient is in the second interval and second coefficient is in
5th section illustrates that the value of the first coefficient is placed in the middle, and it is relatively unobvious that vehicle is inclined to use the degree being driven by electricity, same with this
When, when the second coefficient is in the 5th section, illustrate that the second coefficient value is bigger, then the charge stability of electrical driving unit
It is relatively good, that is to say, that although there is the regular charging of progress, each charging time is shorter, and charging is not enough, therefore can
It is the insufficient charged state of rule with the charged state of the determination electrical driving unit.
Step S102 selects the power drive mode of the vehicle according to the charged state of the electrical driving unit.
Specifically, the various states that can be determined according to above-mentioned steps S101: regular charged state regular is not filled
Electricity condition, irregular state and the insufficient charged state of rule select different power drive modes respectively.
Specifically, when the charged state of the electrical driving unit is regular charged state, illustrate that user can use up
The vehicle may be driven using the electrical driving unit morely, at this point, the power drive mode of the vehicle is arranged
For the first drive mode.
In first drive mode, the vehicle preferentially can be driven using the electrical driving unit, but worked as
The vehicle is driven using engine-driven units when driving energy demand is higher than preset energy value.Referring to FIG. 3, for example, working as
Vehicle can star engine driving when at this time driving energy demand is higher than the second preset energy value in a climbing state
Unit drives the vehicle, and when vehicle enters a gentle driving process of low speed, at this time driving energy demand is lower than the
When one preset energy value, the engine-driven units can be closed and drive the vehicle, it is this according to driving energy demand pair
The method that power drive source switches over will further improve power drive efficiency.
When the charged state of the electrical driving unit is regular not charged state, need to save electric power as much as possible
The electricity of driving unit, and the vehicle is driven using engine-driven units as much as possible, at this point it is possible to by the vehicle
Power drive mode be set as the second drive mode.
In second drive mode, the vehicle preferentially can be driven using engine-driven units.In order to
Guarantee to carry out electric start to vehicle, in specific implementation, the electricity of the electrical driving unit can be remained above or be equal to
Second default electricity, the second default electricity are the minimum amount of power for carrying out electric start to the vehicle.
When the charged state of the electrical driving unit is to stablize irregular state, by the power drive mould of the vehicle
Formula is set as third drive mode.
In third drive mode, when the remaining capacity of the electrical driving unit is greater than or equal to the first default charge value
When, the vehicle is driven using the electrical driving unit, when the remaining capacity of the electrical driving unit is default less than first
When charge value, the vehicle is driven using engine-driven units.Such as the described first default charge value can be expired for electricity
60 the percent of value.The first default charge value can be set according to the practical situations of user.
It should be noted that when the charged state of the electrical driving unit is regular insufficient charged state, due to
Vehicle is inclined to use that the degree being driven by electricity is relatively unobvious, can be using the compromise mode of the first, second mode to drive
State vehicle, i.e., the second default electricity in appropriate adjustment second mode and the first preset energy value in first mode.
Referring to FIG. 4, a kind of power control unit of vehicle of the embodiment of the present invention, described device includes: control coefrficient
Acquiring unit 210, for obtaining the first coefficient and the second coefficient, wherein the first coefficient characterization vehicle use is driven by electricity
Current tendency degree value, the history average residual charge value of the electrical driving unit and the accumulative mileage number of the vehicle and
The real-time residual electric quantity of electrical driving unit described in vehicle travel process is related；Second coefficient characterizes the vehicle
The current charging stability of electrical driving unit, first coefficient are electric according to the history average residual of the electrical driving unit
Magnitude determines, second coefficient according to the first coefficient of the first coefficient of current time vehicle driving and last time vehicle driving it
Between fluctuation situation determine；Charged state determination unit 220, for determining the electricity according to first coefficient and the second coefficient
The charged state of power drive unit；Drive mode setting unit 230, for being selected according to the charged state of the electrical driving unit
With the power drive mode of the vehicle.
In an embodiment of the present invention, the value range of first coefficient may include according to numerical value from small to large suitable
The first interval that sequence divides, second interval and 3rd interval；The value range of second coefficient may include according to numerical value from
Small sequence is arrived greatly is divided into the 5th section and the 6th section.
Specifically, the charged state determination unit 220 can be used for: when first coefficient is in the first interval
And second coefficient is in the 5th section, determines that the charged state of the electrical driving unit is regular charging shape
State；When first coefficient is in the second interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is regular not charged state；When second coefficient is in the 6th section, institute is determined
The charged state for stating electrical driving unit is irregular state.
In an embodiment of the present invention, the drive mode setting unit 230 can be used for: when the electrical driving unit
Charged state be regular charged state when, the first drive mode is set by the power drive mode of the vehicle, in institute
It states in the first drive mode, the vehicle is preferentially driven using the electrical driving unit；When filling for the electrical driving unit
When electricity condition is regular not charged state, the second drive mode is set by the power drive mode of the vehicle, described
In second drive mode, the vehicle preferentially is driven using engine-driven units；When the charging shape of the electrical driving unit
State is when stablizing irregular state, to set third drive mode for the power drive mode of the vehicle, drives mould in third
In formula, when the remaining capacity of the electrical driving unit is greater than or equal to the first default charge value, it is driven by electricity using described
Unit drives the vehicle, when the remaining capacity of the electrical driving unit is less than the first default charge value, using engine
Driving unit drives the vehicle.
In an embodiment of the present invention, the charged state determination unit 220 can be also used for: at first coefficient
It is in the 5th section in the second interval and second coefficient, determines the charged state of the electrical driving unit
For the insufficient charged state of rule.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone 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 range of restriction.
Claims (12)
1. a kind of power-control method of vehicle characterized by comprising
Obtain the first coefficient and the second coefficient, in which: the first coefficient characterization vehicle uses the current tendency journey being driven by electricity
Angle value, first coefficient is determining according to the history average residual charge value of electrical driving unit, the electrical driving unit
The reality of electrical driving unit described in the accumulative mileage number and vehicle travel process of history average residual charge value and the vehicle
When residual electric quantity it is related；Second coefficient characterizes the current charging stability of the electrical driving unit of the vehicle, described
Second coefficient is according to the fluctuation situation between the first coefficient of current secondary vehicle driving and the first coefficient of last vehicle driving
It determines；
The charged state of the electrical driving unit is determined according to first coefficient and the second coefficient；
The power drive mode of the vehicle is selected according to the charged state of the electrical driving unit.
2. power-control method as described in claim 1, which is characterized in that the value range of first coefficient include according to
The first interval that the sequence of numerical value from big to small divides, second interval and 3rd interval；
The value range of second coefficient includes being divided into the 5th section and the 6th section according to the sequence of numerical value from big to small；
The charged state that the electrical driving unit is determined according to first coefficient and the second coefficient includes:
When first coefficient is in the first interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is regular charged state；
When first coefficient is in the 3rd interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is regular not charged state；
When second coefficient is in the 6th section, determine that the charged state of the electrical driving unit is irregular shape
State.
3. power-control method as claimed in claim 2, which is characterized in that the charging according to the electrical driving unit
State selects the power drive mode of the vehicle to include:
When the charged state of the electrical driving unit is regular charged state, the power drive mode of the vehicle is set
It is set to the first drive mode, first drive mode includes: preferentially to drive the vehicle using the electrical driving unit；
When the charged state of the electrical driving unit is regular not charged state, by the power drive mode of the vehicle
It is set as the second drive mode, second drive mode includes: preferentially to drive the vehicle using engine-driven units；
When the charged state of the electrical driving unit is to stablize irregular state, the power drive mode of the vehicle is set
It is set to third drive mode, the third drive mode includes: when the remaining capacity of the electrical driving unit is greater than or equal to
When the first default charge value, the vehicle is driven using the electrical driving unit, when the residue electricity of the electrical driving unit
When amount is less than the first default charge value, the vehicle is driven using engine-driven units.
4. power-control method as claimed in claim 3, which is characterized in that first drive mode further include: work as driving
The vehicle is driven using engine-driven units when energy requirement is higher than preset energy value.
5. power-control method as claimed in claim 3, which is characterized in that second drive mode further include: keep institute
The electricity for stating electrical driving unit is more than or equal to the second default electricity, and the second default electricity is for carrying out to the vehicle
The minimum amount of power of electric start.
6. power-control method as claimed in claim 2, which is characterized in that described according to first coefficient and the second coefficient
Determine the charged state of the electrical driving unit further include:
When first coefficient is in the second interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is the insufficient charged state of rule.
7. power-control method as described in claim 1, which is characterized in that the acquisition methods of first coefficient are as follows:
Wherein, DMC(i)For the first coefficient value of current time vehicle driving,
DMC(i-1)For the first coefficient value of last vehicle driving,
Kchg(i-1)For the second coefficient value of last vehicle driving,
φ (SOC) is the remaining capacity functional value of the electrical driving unit,
For history average residual charge value,
The value range of first coefficient is (- 1,1), and the value range of the second coefficient is (1,10),
The value range of the remaining capacity functional value of the electrical driving unit is (- 1,1).
8. power-control method as described in claim 1, which is characterized in that the acquisition methods of second coefficient are as follows:
Wherein, Kchg(i)For the second coefficient value of current time vehicle driving,
Kchg(i-1)For the second coefficient value of last vehicle driving,
DMC(i)For the first coefficient value of current time vehicle driving,
DMC(i-1)For the first coefficient value of last vehicle driving,
DMCnordeltaFor the reference fluctuation range of the first coefficient,
KchgsenFor the coefficient of stability,
The value range of first coefficient is (- 1,1), and the value range of the second coefficient is (1,10).
9. a kind of power control unit of vehicle characterized by comprising
Control coefrficient acquiring unit, for obtaining the first coefficient and the second coefficient, wherein the first coefficient characterization vehicle uses
The current tendency degree value being driven by electricity, first coefficient are true according to the history average residual charge value of electrical driving unit
It is fixed, in the history average residual charge value of the electrical driving unit and the accumulative mileage number and vehicle travel process of the vehicle
The real-time residual electric quantity of the electrical driving unit is related；Second coefficient characterizes the electrical driving unit of the vehicle
Current charging stability, second coefficient is according to the first of the first coefficient of current vehicle driving and last time vehicle driving
Fluctuation situation between coefficient determines；
Charged state determination unit, for determining the charging of the electrical driving unit according to first coefficient and the second coefficient
State；
Drive mode setting unit, for selecting the power drive of the vehicle according to the charged state of the electrical driving unit
Mode.
10. power control unit as claimed in claim 9, which is characterized in that the value range of first coefficient includes pressing
According to the first interval that the sequence of numerical value from big to small divides, second interval and 3rd interval；
The value range of second coefficient includes being divided into the 5th section and the 6th section according to the sequence of numerical value from big to small；
The charged state determination unit is used for:
When first coefficient is in the first interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is regular charged state；
When first coefficient is in the 3rd interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is regular not charged state；
When second coefficient is in the 6th section, determine that the charged state of the electrical driving unit is irregular shape
State.
11. power control unit as claimed in claim 10, which is characterized in that the drive mode setting unit is used for:
When the charged state of the electrical driving unit is regular charged state, the power drive mode of the vehicle is set
It is set to the first drive mode, in first drive mode, the vehicle is preferentially driven using the electrical driving unit；
When the charged state of the electrical driving unit is regular not charged state, by the power drive mode of the vehicle
It is set as the second drive mode, in second drive mode, preferentially drives the vehicle using engine-driven units；
When the charged state of the electrical driving unit is to stablize irregular state, the power drive mode of the vehicle is set
It is set to third drive mode, in third drive mode, when the remaining capacity of the electrical driving unit is greater than or equal to first
When default charge value, the vehicle is driven using the electrical driving unit, when the remaining capacity of the electrical driving unit is small
When the first default charge value, the vehicle is driven using engine-driven units.
12. power control unit as claimed in claim 10, which is characterized in that the charged state determination unit is also used to:
When first coefficient is in the second interval and second coefficient is in the 5th section, the electricity is determined
The charged state of power drive unit is the insufficient charged state of rule.
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| CN109572676B (en) * | 2017-09-29 | 2020-07-10 | 比亚迪股份有限公司 | Hybrid electric vehicle and power utilization control method and device thereof |
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| CN101249829A (en) * | 2006-11-28 | 2008-08-27 | 通用汽车环球科技运作公司 | Control system for mixed power system |
| CN101284532A (en) * | 2007-12-28 | 2008-10-15 | 奇瑞汽车股份有限公司 | Control method of battery charge state SOC for hybrid electric vehicle |
| CN101903223A (en) * | 2007-12-14 | 2010-12-01 | 丰田自动车株式会社 | Vehicle behavior control device, and vehicle behavior control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249829A (en) * | 2006-11-28 | 2008-08-27 | 通用汽车环球科技运作公司 | Control system for mixed power system |
| CN101903223A (en) * | 2007-12-14 | 2010-12-01 | 丰田自动车株式会社 | Vehicle behavior control device, and vehicle behavior control method |
| CN101284532A (en) * | 2007-12-28 | 2008-10-15 | 奇瑞汽车股份有限公司 | Control method of battery charge state SOC for hybrid electric vehicle |
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