CN104627165B - Driving method for full driving mixed power vehicle - Google Patents
Driving method for full driving mixed power vehicle Download PDFInfo
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- CN104627165B CN104627165B CN201510051942.7A CN201510051942A CN104627165B CN 104627165 B CN104627165 B CN 104627165B CN 201510051942 A CN201510051942 A CN 201510051942A CN 104627165 B CN104627165 B CN 104627165B
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- patten transformation
- threshold value
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/119—Conjoint control of vehicle sub-units of different type or different function including control of all-wheel-driveline means, e.g. transfer gears or clutches for dividing torque between front and rear axle
-
- 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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
-
- 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
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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
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses a kind of driving method for full driving mixed power vehicle, the motor vehicle driven by mixed power has：High-tension battery, internal combustion engine, the first electrical equipment for being driven by the high-tension battery and being run independently of the internal combustion engine and the second electrical equipment for being directly joined to the internal combustion engine；When first electrical equipment and the internal combustion engine drive the vehicle simultaneously, the vehicle is driven with least three kinds drive patterns：Energy recuperation mode, propulsion power generating pattern and propulsion pattern.Methods described includes：Detect driver's power demand and the charged state of the high-tension battery；Detected driver's power demand and detected charged state are compared with predetermined patten transformation threshold value, to obtain comparative result, wherein the predetermined patten transformation threshold value is the function of driver's power demand and charged state；And according to the comparative result, one kind at least three kinds drive patterns described in selection, to drive the vehicle.
Description
Technical field
The present invention relates generally to vehicle electric field, is used to drive (AWD) motor vehicle driven by mixed power entirely more particularly to a kind of
Driving method.
Background technology
Generally, motor vehicle driven by mixed power has two electrical equipments.One of electrical equipment be mainly used in driving vehicle and
Energy regenerating, and can only drive motor vehicle driven by mixed power by the electrical equipment independently of internal combustion engine, and internal combustion
Machine does not provide the power of driving.Another electrical equipment is directly joined to internal combustion engine, and it can help to drive vehicle and energy to return
Receive, can also be charged using the energy of internal combustion engine for high-tension battery.The two electrical equipments could be arranged to and same speed change
Device is engaged, and is referred to as " double mode " hybrid electric vehicle, can also be connected respectively to the front axle or rear axle of vehicle, is referred to as " road formula " and is mixed
Close power car.
Under the driving of above-mentioned two electrical equipment and internal combustion engine, hybrid vehicle control system is generally according to set
Priority level different function is performed to reach optimal fuel efficiency.For example performed according to following priority level：1) it is conventional
Internal combustion engine drives, and it is normal mode of operation for automatic gear gearbox, for required combustion engine powered output,
The pattern is maximally effective operational mode；2) energy regenerating, is captured and store kinetic energy as much as possible during braking；3) electricity drives
It is dynamic, when motivation level is relatively low, it is to avoid use internal combustion engine；4) beginning/stopping, when required power output is zero, internal combustion
Machine is stopped；5) intelligent charge, selects most suitable service condition, using the generator by being connected to internal combustion engine as high-tension electricity
Charge in pond；6) charge level is managed, and high-tension battery is reached predetermined charge level scope, can provide required work(
Energy；7) unnecessary high-tension battery is avoided to circulate.
In addition, " road formula " hybrid electric vehicle can provide a11wheel drive (AWD).Hybrid vehicle control system will be complete
It is the function of reaching optimal fuel efficiency that the priority level of wheel drive function, which is set above above-mentioned,.
However, above-mentioned sortord does not consider how to meet different demands of the driver for transmitting power, in each mould
The formula transition period provides smooth transition and makes the problems such as component wear occurred is minimized.
The content of the invention
In view of the above problems, it is proposed that the present invention, to provide a kind of driving method for full driving mixed power vehicle,
To overcome above mentioned problem or solve the above problems at least in part.
It is described mixed according to the first aspect of the present invention there is provided a kind of driving method for full driving mixed power vehicle
Closing power car has：High-tension battery；Internal combustion engine, one be joined in the front axle and rear axle of the vehicle is to drive the car
；First electrical equipment, another being joined in the front axle and rear axle of the vehicle is to drive the vehicle, and described first is electric
Dynamic equipment is driven by the high-tension battery and run independently of the internal combustion engine；And second electrical equipment, it is directly joined to
The internal combustion engine；When first electrical equipment and the internal combustion engine drive the vehicle simultaneously, the vehicle is with least three
Drive pattern is planted to be driven, and at least Three models include：Energy recuperation mode, propulsion power generating pattern and propulsion module
Formula；Methods described includes：Detect driver's power demand and the charged state of the high-tension battery；By detected driver
Power demand and detected charged state are compared with predetermined patten transformation threshold value, to obtain comparative result, its
Described in predetermined patten transformation threshold value be driver's power demand and charged state function；And according to the comparison
As a result, one kind at least three kinds drive patterns described in selection, to drive the vehicle.
According to an embodiment of the present invention, wherein the predetermined patten transformation threshold value is multiple patten transformation thresholds
Value, and when detected driver's power demand and detected charged state are reached in the multiple patten transformation threshold value
One when, the drive pattern of the vehicle is converted to another from a kind of drive pattern at least three kinds drive patterns
Drive pattern.
According to an embodiment of the present invention, wherein in the energy recuperation mode, by first electrical equipment or
The kinetic energy of the vehicle is captured by both first electrical equipment and second electrical equipment and is turned the kinetic energy captured
Electrical power storage is turned in the high-tension battery, the high-tension battery charging is thought.
According to an embodiment of the present invention, wherein in the propulsion power generating pattern, the internal combustion engine is described second
Electrical equipment provides energy, and second electrical equipment charges for the high-tension battery.
According to an embodiment of the present invention, wherein in the propulsion pattern, by the internal combustion engine, described first electronic
Equipment and second electrical equipment drive the vehicle jointly.
According to an embodiment of the present invention, wherein the predetermined patten transformation threshold value is the internal combustion engine, institute
State the function of the power output of the first electrical equipment or the second electrical equipment.
According to an embodiment of the present invention, wherein the internal combustion engine, first electrical equipment and described second electronic
Equipment provides power with predetermined Torque distribution than respectively described vehicle.
According to an embodiment of the present invention, wherein the internal combustion engine, first electrical equipment and described second electronic
The power sum that equipment is provided by the vehicle is equal to driver's power demand.
According to an embodiment of the present invention, wherein the predetermined patten transformation threshold value is the speed of the vehicle
Function.
According to an embodiment of the present invention, methods described also includes：According to advance at least three kinds drive patterns
The charge level of the high-tension battery of determination, calibrates the predetermined patten transformation threshold value.
According to an embodiment of the present invention, methods described also includes：Institute is converted to according to from a kind of drive pattern
The predetermined conversion times of another drive pattern are stated, the predetermined patten transformation threshold value is calibrated.
According to an embodiment of the present invention, wherein when the charged state increase, turning from the propulsion power generating pattern
Predetermined patten transformation threshold value corresponding during the propulsion pattern is shifted to reduce.
According to an embodiment of the present invention, wherein the predetermined patten transformation threshold value includes calibration function or looked into
Table, when the charged state changes, the calibration function or table look-up continuously changes.
According to an embodiment of the present invention, wherein the predetermined patten transformation threshold value includes calibration function or looked into
Table, when the speed of the vehicle changes, the calibration function or table look-up continuously changes.
In a word, the driving method for motor vehicle driven by mixed power that embodiments of the present invention are provided, using the teaching of the invention it is possible to provide required
Driver's power demand, can with predetermined Torque distribution than come distribute apply driven to the power of front axle and rear axle
Vehicle, while another drive pattern smoothly can be converted to from a kind of drive pattern as needed；Driving mould can be made
The selection of formula is based not only on the charged state of high-tension battery, the operational efficiency of internal combustion engine also can be fully referred to, so that significantly excellent
Change the driveability of motor vehicle driven by mixed power, improve the transformation efficiency of fuel oil and electric energy；Can make patten transformation slowly, can
Repeatedly carry out, it is to avoid driver is disturbed by patten transformation, so as to realize more preferable comfortableness and more preferable Consumer's Experience；
The number of times of patten transformation can be made minimum, help to reduce the abrasion and friction between mechanical component, and reduce making an uproar for patten transformation
Sound, vibration and injustice are pliable.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 be according to an embodiment of the present invention in be used for motor vehicle driven by mixed power driving method 100 flow chart；
Fig. 2 is the schematic diagram of the predetermined patten transformation threshold value according to one example embodiment of the present invention；And
Fig. 3 shows predetermined patten transformation threshold value and the output of vehicle of the exemplary embodiment according to the present invention
The schematic diagram of the relation of power.
Embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.Conversely it is able to be best understood from the disclosure there is provided these embodiments, and can be by this public affairs
The scope opened completely convey to those skilled in the art.Although it should be appreciated that those skilled in the art are not it is contemplated that have
Have and be expressly recited or record in this manual but realize the present invention and be included in present invention spirit, principle and model
Enclose interior various structures.All examples and conditional language quoted from this specification are all in order at the purpose of explanation and teaching,
To help reader to understand principle and concept that inventor contributes to prior art, and should be understood that to be not limited to these
The example and condition specifically quoted from.In addition, in order to illustrate more clearly of eliminating for the detailed of known devices, circuit and method
Thin description, not obscure description of the invention.It should be understood that unless stated otherwise, the feature in each embodiment described herein
It can be combined with each other.
It will be understood by those skilled in the art that the quantity of each part cited in the exemplary embodiment of the present invention is only
It is for illustrative purposes, and to be not construed as limitation of the present invention.Each part can have other numbers in the present invention
Amount, is made without departing from the scope of the present invention.
In this manual, the function of each unit can be by using specialized hardware or can be with appropriate software
It is combined to perform the hardware of processing to realize.Such hardware or specialized hardware can include application specific integrated circuit (ASIC),
Various other circuits, various processors etc..When being realized by processor, the function can be by single application specific processor, single common
Processor or multiple independent processors (some of which may be shared) is enjoyed to provide.In addition, processor should not be managed
Solve to refer exclusively to be able to carry out the hardware of software, but can implicitly include and be not limited to digital signal processor (DSP) firmly
Part, the read-only storage (ROM) for storing software, random access memory (RAM) and non-volatile memory apparatus.
There is provided a kind of driving method 100 for full driving mixed power vehicle according to the first aspect of the invention.
The motor vehicle driven by mixed power has high-tension battery, internal combustion engine, run independently of the internal combustion engine it is first electronic
Equipment, and it is directly joined to the second electrical equipment of the internal combustion engine.Alternatively, the second electrical equipment can be that integrated form rises
The generator that dynamic generator (ISG), tape starting generator (BSG) or the gear by speed changer drive.Alternatively, first is electronic
Equipment is configurable to be joined to the front axle of motor vehicle driven by mixed power, and the second electrical equipment is joined to rear axle.Alternatively, first is electronic
Equipment is configurable to be joined to the rear axle of motor vehicle driven by mixed power, and the second electrical equipment is joined to front axle.Above-mentioned each unit
Annexation is merely illustrative, and those skilled in the art completely can be using other annexations, as long as being closed in such connection
Each unit can also realize the function of the present invention under system.
For full driving mixed power vehicle, when first electrical equipment and the internal combustion engine are while drive the vehicle
When, the vehicle is driven with least three kinds drive patterns, and at least Three models include：Energy recuperation mode 2, propulsion
Power generation mode 3 and propulsion pattern 4.Alternatively, full driving mixed power vehicle can be driven with other patterns, for example, work as mixing
Power car is in when running at a low speed, i.e., when not accelerating also not brake, in sliding mode 1, wherein electronic being set by described first
The standby driving force provided is zero.Motor vehicle driven by mixed power is managed and controlled the first electrical equipment, the second electricity by above-mentioned drive pattern
Dynamic equipment, internal combustion engine and high-tension battery, using the teaching of the invention it is possible to provide required driver's power demand, can be with predetermined torque point
Match and apply the power to front axle and rear axle to distribute to drive vehicle, while can turn as needed from a kind of drive pattern
Another drive pattern is changed to, wherein patten transformation involves starting up internal combustion engine, the engagement process such as speed changer or clutch.
Fig. 1 is shown is used for motor vehicle driven by mixed power according to the non-limiting and exemplary embodiment of the present invention
The flow chart of driving method 100.As shown in figure 1, method 100 starts from step S110：Detect driver's power demand and the height
The charged state (SOC) of piezoelectric battery.Alternatively, driver's power demand can by the motor vehicle driven by mixed power wagon control list
Member detection driver's gas pedal steps on amplitude acquisition, and the charged state of high-tension battery can read electricity by control unit for vehicle
Pond management system (BMS) data realize that the charged state can be that (high-tension battery is always electric for the absolute charged state of high-tension battery
The 0-100% of amount) or high-tension battery available charged state (for example, 30%-70% of high-tension battery total electricity).
As shown in figure 1, after step S110, carrying out step S120：Detected driver's power demand and it will be examined
The charged state measured is compared with predetermined patten transformation threshold value, to obtain comparative result, wherein described predefine
Patten transformation threshold value be driver's power demand and charged state function.Alternatively, predetermined patten transformation threshold value
Can also be the function of motor vehicle driven by mixed power other specification, such as wheel torque.By by predetermined patten transformation threshold value
The function of driver's power demand and charged state is set to, the selection of drive pattern can be made to be based not only on filling for high-tension battery
Electricity condition, also can fully refer to the operational efficiency of internal combustion engine, so as to significantly optimize the driven nature of full driving mixed power vehicle
Can, improve the transformation efficiency of fuel oil and electric energy.
Referring again to Fig. 1, after step S120, step S130 is performed：According to the comparative result, at least three described in selection
One kind in drive pattern is planted, to drive the vehicle.
According to an illustrative embodiment of the invention, the predetermined patten transformation threshold value is multiple patten transformation thresholds
Value, and when detected driver's power demand and detected charged state are reached in the multiple patten transformation threshold value
One when, the drive pattern of the vehicle is converted to another from a kind of drive pattern at least three kinds drive patterns
Drive pattern.
Fig. 2 is the schematic diagram of the predetermined patten transformation threshold value according to one example embodiment of the present invention.Such as Fig. 2
Shown, predetermined patten transformation threshold value is driver's power demand y and charged state x function, and predetermined mould
Formula switching threshold is multiple patten transformation threshold values, such as FAB(x, y) and FBC(x, y), wherein FAB(x, y) is from energy regenerating mould
Formula 2 is converted to the patten transformation threshold value of propulsion power generating pattern 3, FBC(x, y) is to be converted to propulsion pattern 4 from propulsion power generating pattern 3
Patten transformation threshold value.Alternatively, FAB(x, y) can be y=0, as shown in Figure 2.Alternatively, wherein charged state x minimum
Value and maximum can be the minimum values of available charged state to maximum.Under same charged state, according to different driving
Person's power demand, will select different drive patterns, and when charged state changes, the driver corresponding to pattern switching
Power demand also will change.
As shown in Fig. 2 when detected driver's power demand and detected charged state are not up to FAB(x,y)
When, energy recuperation mode 2 is selected, to drive the vehicle；When detected driver's power demand and detected fill
Electricity condition reaches predetermined patten transformation threshold value FABWhen (x, y), the drive pattern of full driving mixed power vehicle is returned from energy
Receipts pattern 2 is converted to propulsion power generating pattern 3.That is, the current charged state x of vehicle is detected for a, according to patten transformation threshold value FAB
(x, y), corresponding driver's power demand is b, and energy regenerating is selected if detecting current drivers' power demand and being less than b
Pattern, propulsion power generating pattern is selected if detecting current drivers' power demand and being more than b.Alternatively, as shown in Fig. 2 such as
Fruit FABWhen (x, y) is y=0, when driver's power demand is negative, that is, when braking, energy recuperation mode 2 is selected, when driver is dynamic
Power requirement is more than 0, that is, when stepping on gas pedal, selection propulsion power generating pattern 3.
When detected driver's power demand and detected charged state reach that predetermined pattern turns
Change threshold value FAB(x, y) but not up to FBCWhen (x, y), selection propulsion power generating pattern 3, to drive the vehicle；When detected
Driver's power demand and detected charged state reach predetermined patten transformation threshold value FBCWhen (x, y), vehicle
Drive pattern is converted to propulsion pattern 4 from propulsion power generating pattern 3.Alternatively, with the increase of charged state, predetermined mould
Formula switching threshold FBCDriver's power demand corresponding to (x, y) is also reduced therewith.
Alternatively, predetermined patten transformation threshold value is smoothly varying with the change of charged state so that from one
The patten transformation of individual drive pattern to another drive pattern slowly, can be carried out repeatably, it is to avoid driver is by mould
The interference of formula conversion, so as to realize more preferable comfortableness and more preferable Consumer's Experience.
According to an illustrative embodiment of the invention, in the energy recuperation mode 2, by first electrical equipment or
The kinetic energy of the vehicle is captured by both first electrical equipment and second electrical equipment and is turned the kinetic energy captured
Electrical power storage is turned in the high-tension battery, the high-tension battery charging is thought.
Fig. 3 is shown when being in median according to the charged state of the exemplary embodiment of the present invention each drive pattern and pre-
The schematic diagram of the patten transformation threshold value first determined.In the exemplary embodiment shown in Fig. 3, the first electrical equipment is bonded to full drive
The rear axle of motor vehicle driven by mixed power, internal combustion engine is bonded to the front axle of full driving mixed power vehicle.It will be understood by those skilled in the art that institute
Vehicle is stated it can also be provided that the first electrical equipment to be bonded to the front axle of full driving mixed power vehicle, internal combustion engine is bonded to full drive
The rear axle of motor vehicle driven by mixed power.
As shown in figure 3, when high-tension battery charged state be in median, such as in available power maximum 25% to
When 75%, high-tension battery can be electrically charged by the first electrical equipment by energy recuperation mode 2；High-tension battery can also be by first
Both electrical equipment and the second electrical equipment are electrically charged by energy recuperation mode 2, now, the power output of the first electrical equipment
Such as straight line L2AIt is shown, the power output such as straight line L of the second electrical equipment2BIt is shown.When the charged state of high-tension battery is in other
During numerical value, the power output of the first electrical equipment, the second electrical equipment and internal combustion engine can be with other curvilinear motions.
According to an illustrative embodiment of the invention, in the propulsion power generating pattern 3, the internal combustion engine is described second
Electrical equipment provides energy, and second electrical equipment charges for the high-tension battery.Alternatively, the second electrical equipment is defeated
Go out power to be limited as the minimum power needed for the second electrical equipment performance in itself and internal combustion engine reach peak value operational efficiency
It is fixed, energy is provided for second electrical equipment by the internal combustion engine, then filled for the high-tension battery by the second electrical equipment
Electricity, it is to avoid charged immediately to high-tension battery with a relatively high power after internal combustion engine start, but with driver's power demand
Increase, by smooth and unidirectional patten transformation be high-tension battery charge so that reduce the noise of patten transformation, vibration and
It is uneven pliable, make user be difficult to discover, obtain higher comfortableness and more preferable Consumer's Experience.
As shown in figure 3, when high-tension battery charged state be in median, such as in available power maximum 25% to
When 75%, energy, and described second can be provided by propulsion power generating pattern 3, the internal combustion engine for second electrical equipment
Electrical equipment charges for the high-tension battery.In propulsion power generating pattern 3, the power output such as straight line L of the first electrical equipment3AInstitute
Show, for driving the vehicle；The power output of internal combustion engine such as broken line L3CIt is shown, parallel energy transmission is carried out, i.e. internal combustion engine is defeated
Going out a part for power is used to provide energy, the power output such as broken line L of the second electrical equipment for the second electrical equipment3BIt is shown,
And another part of output power of internal combustion engine is used to drive the vehicle, such as straight line L '3CIt is shown.With driver's power demand
Increase, the output work of internal combustion engine takes the lead in increasing therewith, reaches and keep constant after its peak power output, is that motor vehicle driven by mixed power is carried
For constant power, to drive the motor vehicle driven by mixed power.In propulsion power generating pattern 3, first electrical equipment, described
Two electrical equipments and oil-engine driven total power output such as straight line L3It is shown.When the charged state of high-tension battery is in
During other numerical value, the power output of the first electrical equipment, the second electrical equipment and internal combustion engine can be with other curvilinear motions.
According to an illustrative embodiment of the invention, in the propulsion pattern 4, by the internal combustion engine, first electricity
Dynamic equipment and second electrical equipment drive the vehicle jointly.
As shown in figure 3, when high-tension battery charged state be in median, such as in available power maximum 25% to
, can be common by the internal combustion engine, first electrical equipment and second electrical equipment by promoting pattern 4 when 75%
Drive the vehicle.In pattern 4 is promoted, the power output such as straight line L of the first electrical equipment4AIt is shown, for driving the car
；The power output of internal combustion engine and the second electrical equipment such as straight line L4BIt is shown.With the increase of driver's power demand, the first electricity
The power output of dynamic equipment, and the power output of internal combustion engine and the second electrical equipment increase therewith, to drive the mixing dynamic
Power vehicle.In pattern 4 is promoted, first electrical equipment, second electrical equipment and described oil-engine driven total
Power output such as straight line L4It is shown.It is the first electrical equipment, second electronic when the charged state of high-tension battery is in other numerical value
Equipment and the power output of internal combustion engine can be with other curvilinear motions.
According to an illustrative embodiment of the invention, the predetermined patten transformation threshold value is the internal combustion engine, institute
State the function of the power output of the first electrical equipment or the second electrical equipment.In this way, in mode transition procedure, make
Obtaining internal combustion engine, the first electrical equipment and the second electrical equipment can be run with its optimal state, so as to significantly optimize
The driveability of motor vehicle driven by mixed power, improves the transformation efficiency of fuel oil and electric energy.
According to an illustrative embodiment of the invention, the internal combustion engine, first electrical equipment and described second electronic
Equipment provides power with predetermined Torque distribution than respectively described vehicle.By being come with predetermined Torque distribution ratio
The power output of internal combustion engine, the first electrical equipment and the second electrical equipment is distributed, in mode transition procedure so that internal combustion engine,
First electrical equipment and the second electrical equipment can be run with its optimal state, so that significantly optimizing complete drive mixes dynamic
The driveability of power vehicle, improves the transformation efficiency of fuel oil and electric energy.
According to an illustrative embodiment of the invention, the internal combustion engine, first electrical equipment and described second electronic
The power sum that equipment is provided by the vehicle is equal to driver's power demand.
According to an illustrative embodiment of the invention, the predetermined patten transformation threshold value is the speed of the vehicle
Function.For example, the function of the speed by the way that predetermined patten transformation threshold value to be set to motor vehicle driven by mixed power, Neng Gouyou
Change and the kinetic energy of the motor vehicle driven by mixed power is captured by first electrical equipment and the kinetic energy captured is converted into electrical power storage
Operation in the high-tension battery, so as to further optimize the driveability of motor vehicle driven by mixed power, improves fuel oil and electricity
Transformation of energy efficiency.
According to an illustrative embodiment of the invention, method 100 also includes：According to pre- at least three kinds drive patterns
The charge level of the high-tension battery first determined, calibrates the predetermined patten transformation threshold value.Alternatively, it can be sent out according to promoting
The charged state of corresponding predetermined high-tension battery calibrates predetermined patten transformation threshold value in power mode, wherein
The charged state of predetermined high-tension battery can correspond to the charging shape during power output maximum of the first electrical equipment
State, so that the charged state corresponding to propulsion power generating pattern has desired scope, for example, can be according to corresponding to the first electricity
The charged state when power output of dynamic equipment is maximum, such as 90%, to calibrate predetermined patten transformation threshold value.Pass through calibration
Predetermined patten transformation threshold value, can be such that the charged state in each drive pattern falls into desired scope, make full drive
Motor vehicle driven by mixed power is run with desired drive pattern, is optimized the driveability of full driving mixed power vehicle, is improved combustion
The transformation efficiency of oil and electric energy.
According to an illustrative embodiment of the invention, another driving is converted to according to from a kind of drive pattern
The predetermined conversion times of pattern, calibrate the predetermined patten transformation threshold value.Alternatively, if it is desired to complete to drive mixed
Close power car in the process of moving as far as possible reduce patten transformation number of times, the predetermined patten transformation threshold value of adjustable,
Increase the difference of two adjacent predetermined patten transformation threshold values, so that abrasion and friction between reducing mechanical component, and
Noise, vibration and the injustice for reducing patten transformation are pliable.
According to an illustrative embodiment of the invention, when the charged state increase, turn from the propulsion power generating pattern
Predetermined patten transformation threshold value corresponding during the propulsion pattern is shifted to reduce.
As shown in Fig. 2 when the charged state SOC increases, being changed from the propulsion power generating pattern 3 to the propulsion module
Corresponding predetermined patten transformation threshold value F during formula 4BC(x, y) is reduced.That is, in the less situation of charged state
Under, patten transformation threshold value FBC(x, y) is larger, when detected driver's power demand and detected charged state need to reach
To larger patten transformation threshold value FBCWhen (x, y), it can just be changed from propulsion power generating pattern 3 to the propulsion pattern 4；In charging shape
In the case that state is higher, patten transformation threshold value FBC(x, y) is relatively low, detected driver's power demand and detected fills
Electricity condition only needs to reach relatively low patten transformation threshold value FBCWhen (x, y), you can changed from propulsion power generating pattern 3 to the propulsion module
Formula 4.So, when charged state is relatively low, motor vehicle driven by mixed power can be provided mainly by internal combustion engine for second electrical equipment
Energy simultaneously drives vehicle, and second electrical equipment charges for the high-tension battery；And when charged state increase to it is higher
During numerical value, the vehicle is driven by the internal combustion engine, first electrical equipment and second electrical equipment jointly, so as to enter
The driveability of one-step optimization motor vehicle driven by mixed power and the transformation efficiency for improving fuel oil and electric energy.
According to an illustrative embodiment of the invention, the predetermined patten transformation threshold value includes calibration function or looked into
Table, when the charged state changes, the calibration function or table look-up continuously changes.Alternatively, as shown in Fig. 2 predefining
Patten transformation threshold value include calibration function, such as FAB(x, y) and FBC(x, y), the calibration when the charged state changes
Function FAB(x, y) and FBC(x, y) continuously changes.By making calibration function or tabling look-up as charged state continuously changes, and
Noise, vibration and the injustice for reducing patten transformation are pliable, make user be difficult to discover, and obtain higher comfortableness and more preferable
Consumer's Experience.
According to an illustrative embodiment of the invention, the predetermined patten transformation threshold value includes calibration function or looked into
Table, when the speed of the vehicle changes, the calibration function or table look-up continuously changes.By make calibration function or table look-up with
The speed for motor vehicle driven by mixed power continuously changes, and the noise, vibration and the injustice that reduce patten transformation are pliable, make user not
Easily discover, obtain higher comfortableness and more preferable Consumer's Experience.
In a word, the driving method 100 for motor vehicle driven by mixed power that embodiments of the present invention are provided, using the teaching of the invention it is possible to provide required
The driver's power demand wanted, can be with predetermined Torque distribution than being driven to distribute to apply to the power of front axle and rear axle
Motor-car, while another drive pattern smoothly can be converted to from a kind of drive pattern as needed；Driving can be made
The selection of pattern is based not only on the charged state of high-tension battery, the operational efficiency of internal combustion engine also can be fully referred to, so that significantly
The driveability of motor vehicle driven by mixed power is optimized, the transformation efficiency of fuel oil and electric energy is improved；Can make patten transformation slowly,
Repeatably carry out, it is to avoid driver is disturbed by patten transformation, so as to realize more preferable comfortableness and more preferable user's body
Test；The number of times of patten transformation can be made minimum, help to reduce the abrasion and friction between mechanical component, and reduce patten transformation
Noise, vibration and injustice are pliable.
In this manual, substantial amounts of detail is illustrated.It will be appreciated, however, that embodiments of the present invention can be with
Implement in the case of these no details.In some embodiments, be not been shown in detail known method, structure and
Technology, so as not to make reader obscure the understanding to the principle of this specification.
It will be understood by those skilled in the art that can be carried out adaptively to the module in the device in each embodiment
Change, and they are arranged in one or more devices different from the embodiment.Except feature or processing mutually row
Outside the situation of reprimand, any combinations can be used, to all steps or any dress of any method disclosed in this specification
All modules put are combined.Unless expressly stated otherwise, each feature disclosed in this specification can be by offer phase
Same, equivalent or similar purpose alternative features are replaced.
It should be noted that the present invention will be described rather than limits the invention for above-mentioned embodiment, and ability
Field technique personnel can design various alternate embodiments in the case of without departing from scope of the following claims.In right
In claim, the sequence of feature is not meant to any particular order of feature, and especially, is respectively walked in claim to a method
Rapid order is not meant to that these steps must sequentially be performed according to this.On the contrary, these steps can be with any appropriate
Order perform.In detail in the claims, any reference marker in bracket should not be understood as to the limit to claim
System.Term " comprising " or "comprising" do not exclude the presence of module or step not listed in the claims.Positioned at module or step it
Preceding term "a" or "an" does not exclude the presence of multiple such modules or step.Term " first ", " second " and "
Three " etc. use does not indicate that any order, these terms can be construed into title.
Claims (13)
1. one kind is used for the driving method for driving (AWD) motor vehicle driven by mixed power entirely, the motor vehicle driven by mixed power has：
High-tension battery；
Internal combustion engine, one be joined in the front axle and rear axle of the vehicle is to drive the vehicle；
First electrical equipment, another being joined in the front axle and rear axle of the vehicle is to drive the vehicle, described first
Electrical equipment is driven by the high-tension battery and run independently of the internal combustion engine；And
Second electrical equipment, is directly joined to the internal combustion engine；
When first electrical equipment and the internal combustion engine drive the vehicle simultaneously, the vehicle is with least three kinds driving moulds
Formula is driven, and at least Three models include：Energy recuperation mode, propulsion power generating pattern and propulsion pattern；
Methods described includes：
Detect driver's power demand and the charged state of the high-tension battery；
By detected driver's power demand and detected charged state and predetermined patten transformation threshold value phase
Compare, to obtain comparative result, wherein the predetermined patten transformation threshold value is driver's power demand and charged state
Function, the predetermined patten transformation threshold value is smoothly varying with the change of charged state；And
According to the comparative result, one kind at least three kinds drive patterns described in selection, to drive the vehicle；
Methods described also includes：The predetermined of another drive pattern is converted to according to from a kind of drive pattern
Conversion times, calibrate the predetermined patten transformation threshold value, increase by two adjacent predetermined patten transformation threshold values
Difference.
2. the method as described in claim 1, wherein the predetermined patten transformation threshold value is multiple patten transformation threshold values,
And when detected driver's power demand and detected charged state are reached in the multiple patten transformation threshold value
At one, the drive pattern of the vehicle is converted to another drive from a kind of drive pattern at least three kinds drive patterns
Dynamic model formula.
3. the method as described in claim 1, wherein in the energy recuperation mode, by first electrical equipment or by institute
Both the first electrical equipment and second electrical equipment is stated to capture the kinetic energy of the vehicle and be converted into the kinetic energy captured
Electrical power storage thinks the high-tension battery charging in the high-tension battery.
4. the method as described in claim 1, wherein in the propulsion power generating pattern, the internal combustion engine is described second electronic
Equipment provides energy, and second electrical equipment charges for the high-tension battery.
5. the method as described in claim 1, wherein in the propulsion pattern, electronic set by the internal combustion engine, described first
Standby and second electrical equipment drives the vehicle jointly.
6. the method as described in claim 1, wherein the predetermined patten transformation threshold value is the internal combustion engine, described
The function of the power output of one electrical equipment or the second electrical equipment.
7. the method as described in claim 1, wherein the internal combustion engine, first electrical equipment and second electrical equipment
With predetermined Torque distribution power is provided than respectively described vehicle.
8. the method as described in claim 1, wherein the internal combustion engine, first electrical equipment and second electrical equipment
The power sum provided by the vehicle is equal to driver's power demand.
9. the method as described in claim 1, wherein the predetermined patten transformation threshold value is the speed of the vehicle
Function.
10. the method as described in claim 1, in addition to：According to predetermined high pressure at least three kinds drive patterns
The charge level of battery, calibrates the predetermined patten transformation threshold value.
11. the method as described in claim 1, wherein when the charged state increase, from the propulsion power generating patten transformation
Corresponding predetermined patten transformation threshold value is reduced during to the propulsion pattern.
12. the method as described in claim 1, wherein the predetermined patten transformation threshold value includes calibration function or looked into
Table, when the charged state changes, the calibration function or table look-up continuously changes.
13. method as claimed in claim 9, wherein the predetermined patten transformation threshold value includes calibration function or looked into
Table, when the speed of the vehicle changes, the calibration function or table look-up continuously changes.
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