CN103419616B - Four-drive hybrid electric vehicle and control method thereof - Google Patents
Four-drive hybrid electric vehicle and control method thereof Download PDFInfo
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- CN103419616B CN103419616B CN201210153105.1A CN201210153105A CN103419616B CN 103419616 B CN103419616 B CN 103419616B CN 201210153105 A CN201210153105 A CN 201210153105A CN 103419616 B CN103419616 B CN 103419616B
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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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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Abstract
The present invention proposes a kind of four-drive hybrid electric vehicle and control method thereof.Wherein said four-drive hybrid electric vehicle includes: front wheels and rear wheels；Wheel hub motor, wheel hub motor is connected with front-wheel, is used for driving front-wheel；Electromotor, electromotor is connected with trailing wheel by variator, is used for driving trailing wheel；ISG motor, ISG motor is connected between electromotor and variator, is used for driving trailing wheel；Clutch, clutch is connected between electromotor and ISG motor；Inverter, inverter is connected with wheel hub motor and ISG motor respectively；And electrokinetic cell, electrokinetic cell is connected with inverter, for providing power for wheel hub motor and ISG motor.According to the four-drive hybrid electric vehicle of the present invention, improve the climbing of automobile, start and the performance such as acceleration, it is achieved that the pure motorized motions of four-wheel, simplify front-wheel drive, reduce oil consumption and discharge, improve the fuel economy of automobile.
Description
Technical field
The present invention relates to field of automobile, particularly to a kind of four-drive hybrid electric vehicle and control method thereof.
Background technology
Along with worsening shortages and people's pay attention to day by day to environmental protection of the non-renewable resources such as oil, car manufactures starts
Exploitation hybrid vehicle.Fig. 1 is the structural representation of the four-drive hybrid electric vehicle of prior art, as it is shown in figure 1,
This four-wheel hybrid vehicle employing engine behind front wheel forerunner and the type of drive of separate electrical motor driving trailing wheel, specifically,
Electromotor 1 ', propons ISG (Integrated Starter and Generator, start power generation all-in-one machine) motor 2 ' and front subtract
Speed device 3 ' constitutes front drive device, and wherein electromotor 1 ' is arranged on front driving axle 4 ', propons ISG motor 2 ' and electromotor
1 ' is connected by actuating device；Driving device, wherein back axle ISG electricity after back axle ISG motor 7 ' and rear decelerator 8 ' composition
The rear decelerator 8 ' that machine 7 ' is connected by actuating device.Propons ISG motor 2 ' is by inverter 5 ' electrokinetic cell 10 '
Electrical connection, back axle ISG motor 7 ' is electrically connected with electrokinetic cell 10 ' by inverter 6 ' respectively.
After prior art there is problems in that (1) uses engine behind front wheel forerunner's mode that the driving force of front-wheel is more than
The driving force of wheel, the climbing of automobile under particular case, starts and the performance such as acceleration can not meet requirement, vehicle dynamic quality
Low；(2) four-wheel pure motorized motions mode, oil consumption and discharge cannot be realized higher；(3) structure of front drive device
Complicated.
Summary of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
To this end, the first of the present invention purpose is to propose a kind of four-drive hybrid electric vehicle, this four-drive hybrid electric vapour
The climbing of car, start and the performance such as acceleration is improved, and the pure motorized motions of four-wheel can be realized, simplify simultaneously
Front drive device, reduces oil consumption and discharge.
Second object of the present invention is to propose the control method of a kind of four-drive hybrid electric vehicle.
For reaching above-mentioned purpose, the four-drive hybrid electric vehicle of first aspect present invention embodiment includes: front wheels and rear wheels；
Wheel hub motor, described wheel hub motor is connected with described front-wheel, is used for driving described front-wheel；Electromotor, described electromotor
It is connected with described trailing wheel by variator, is used for driving described trailing wheel；Start the ISG motor of power generation all-in-one machine, described
ISG motor is connected between described electromotor and described variator, is used for driving described trailing wheel；Clutch, described from
Clutch is connected between described electromotor and described ISG motor；Inverter, described inverter is electric with described wheel hub respectively
Machine is connected with described ISG motor；And electrokinetic cell, described electrokinetic cell is connected with inverter, is used for as described wheel hub
Motor and described ISG motor provide power.
Four-drive hybrid electric vehicle according to embodiments of the present invention, at least has following beneficial effect: (1) wheel hub is electric
Machine drives front-wheel, electromotor and/or ISG motor to drive trailing wheel, when using electromotor to drive trailing wheel, and the driving of trailing wheel
Power more than the driving force of front-wheel, improves the climbing of automobile, starts and the performance such as acceleration, i.e. improve the power of automobile
Property；(2) use In-wheel motor driving front-wheel and use ISG motor to drive trailing wheel, it is possible to achieve the pure electronic of four-wheel drives
Dynamic；(3) front-wheel uses In-wheel motor driving, simplifies front-wheel drive, reduces cost；(4) electromotor and
Use clutch to connect between ISG motor, being operated alone of electromotor or ISG motor can be realized by clutch
Trailing wheel, can use ISG motor individually with pure trailing wheel driven electrically, it is possible to use electromotor individually to start with pure
Machine mode drives trailing wheel, can select corresponding type of drive according to actual travel situation easily, thus reduce oil
Consumption and discharge, improve the fuel economy of automobile.
In one embodiment of the invention, also include: clutch controller, for described clutch is controlled；
Hub motor control device, for being controlled described wheel hub motor；Engine controller, for described electromotor
It is controlled；ISG electric machine controller, for being controlled described ISG motor；And entire car controller, for root
According to the mode of operation of described four-drive hybrid electric vehicle to described clutch controller, hub motor control device, electromotor
Controller and ISG electric machine controller are controlled.
In one embodiment of the invention, described entire car controller by CAN and described clutch controller,
Hub motor control device, engine controller are connected with ISG electric machine controller.
In one embodiment of the invention, also including: decelerator and differential mechanism, described variator is by described deceleration
Device is connected with described trailing wheel with differential mechanism.
In one embodiment of the invention, also include: battery manager, described battery manager and described power current
Pond is connected with described entire car controller, for being charged described electrokinetic cell under the control of described entire car controller
With electric discharge management.
In one embodiment of the invention, also including: abs controller, described abs controller passes through described CAN
Bus is connected with described entire car controller.
In one embodiment of the invention, when described four-drive hybrid electric vehicle is in pure electric Drive Mode, institute
State entire car controller and control the disconnection of described clutch by described clutch controller, and by described hub motor control
Described in device and/or ISG motor controller controls, described four-drive hybrid electric vehicle is carried out by wheel hub motor and/or ISG motor
Drive.
In one embodiment of the invention, when the electricity of described electrokinetic cell is more than default charge value, described four
Four-drive hybrid electric vehicle described in driving mixed power automobile startup control system enters described pure electric Drive Mode.
In one embodiment of the invention, the speed at described four-drive hybrid electric vehicle is more than the first pre-set velocity value
Afterwards, described four-drive hybrid electric vehicle enters pure engine mode, and described entire car controller is by described clutch control
Device processed controls described clutch Guan Bi so that described electromotor accesses, and by sending out described in described engine controller controls
Motivation start, and by wheel hub motor described in described hub motor control device and described ISG motor controller controls with
Described ISG motor dallies.
In one embodiment of the invention, the speed at described four-drive hybrid electric vehicle is more than the second pre-set velocity value
Afterwards, described four-drive hybrid electric vehicle enters moderate mixing 4 wheel driven pattern, and described entire car controller passes through described wheel hub
Described front-wheel is driven by wheel hub motor described in motor controller controls, and wherein, described second pre-set velocity value is more than
Described first pre-set velocity value.
In one embodiment of the invention, the speed at described four-drive hybrid electric vehicle is more than the second pre-set velocity value
Afterwards, described four-drive hybrid electric vehicle enters moderate mixing 4 wheel driven pattern, and described entire car controller passes through described wheel hub
Described front-wheel is driven by wheel hub motor described in motor controller controls, and wherein, described second pre-set velocity value is more than
Described first pre-set velocity value.
In one embodiment of the invention, the speed at described four-drive hybrid electric vehicle is more than the 3rd pre-set velocity value
Afterwards, described four-drive hybrid electric vehicle enters strong dark conjunction 4 wheel driven pattern, and described entire car controller passes through described ISG
Described in motor controller controls, described trailing wheel is driven by ISG motor, and wherein, described 3rd pre-set velocity value is more than
Described second pre-set velocity value.
In one embodiment of the invention, when described four-drive hybrid electric vehicle slows down or brakes, described 4 wheel driven mixes
Closing power vehicle and enter braking mode, described entire car controller is by described hub motor control device and/or described
Wheel hub motor described in ISG motor controller controls and/or described ISG motor enter power generation mode, with to described power current
Pond is charged.
For reaching above-mentioned purpose, the control method of the four-drive hybrid electric vehicle of second aspect present invention embodiment, described
Four-drive hybrid electric vehicle is the four-drive hybrid electric vehicle according to any one of first aspect present invention embodiment, described
Method comprises the following steps: S1: detect the current vehicle speed of described four-drive hybrid electric vehicle；S2: according to described currently
The corresponding mode of operation of speed selection；And S3: according to described mode of operation control described wheel hub motor, described in start
The described four-drive hybrid electric vehicle of one or more drivings in machine and described ISG motor.
The control method of four-drive hybrid electric vehicle according to embodiments of the present invention, can be according to four-drive hybrid electric vehicle
Speed select mode of operation flexibly, corresponding control mode can be selected according to different mode of operation, it is achieved send out
Distributing rationally between motivation, wheel hub motor and ISG motor, it is ensured that drive high-power have simultaneously higher
Fuel economy.
In one embodiment of the invention, if the current vehicle speed of described four-drive hybrid electric vehicle is preset less than first
Velocity amplitude, the most described four-drive hybrid electric vehicle enters pure electric Drive Mode, controls described clutch and disconnects, and controls
Make described wheel hub motor and/or described four-drive hybrid electric vehicle is driven by ISG motor.
In one embodiment of the invention, also include: detect the electricity of described electrokinetic cell；If it is and described dynamic
The electricity of power battery more than presetting charge value, then mixes at 4 wheel driven described in described four-drive hybrid electric vehicle startup control system
Power vehicle enters described pure electric Drive Mode.
In one embodiment of the invention, if the speed of described four-drive hybrid electric vehicle is preset more than described first
After velocity amplitude, the most described four-drive hybrid electric vehicle enter pure engine mode, control described clutch Guan Bi so that
Described electromotor accesses, and controls described engine start, and controls described wheel hub motor and described ISG motor sky
Turn.
In one embodiment of the invention, if the speed of described four-drive hybrid electric vehicle is more than the second pre-set velocity
After value, the most described four-drive hybrid electric vehicle enters moderate mixing 4 wheel driven pattern, controls described wheel hub motor to described
Front-wheel is driven, and wherein, described second pre-set velocity value is more than described first pre-set velocity value.
In one embodiment of the invention, if the speed of described four-drive hybrid electric vehicle is more than the 3rd pre-set velocity
After value, the most described four-drive hybrid electric vehicle enters strong dark conjunction 4 wheel driven pattern, controls described ISG motor to described
Trailing wheel is driven, and wherein, described 3rd pre-set velocity value is more than described second pre-set velocity value.
In one embodiment of the invention, also include: detect described four-drive hybrid electric vehicle whether enter deceleration or
On-position；Slow down or on-position, the most described four-drive hybrid electric vapour if described four-drive hybrid electric vehicle enters
Car enters braking mode, controls described wheel hub motor and/or described ISG motor enters power generation mode, with to described
Electrokinetic cell is charged.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will become bright from the following description of the accompanying drawings of embodiments
Aobvious and easy to understand, wherein:
Fig. 1 is the structural representation of the four-drive hybrid electric vehicle of prior art；
Fig. 2 is the structural representation of the four-drive hybrid electric vehicle of one embodiment of the invention；
Fig. 3 is the structural representation of the four-drive hybrid electric vehicle of another embodiment of the present invention；And
Fig. 4 is the flow chart of the control method of the four-drive hybrid electric vehicle of one embodiment of the invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below by ginseng
The embodiment examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention.For letter
Changing disclosure of the invention, hereinafter parts and setting to specific examples are described.Certainly, they are the most merely illustrative,
And it is not intended to limit the present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiment and/or arranging
Relation.Additionally, the various specific technique that the invention provides and the example of material, but ordinary skill people
Member is it can be appreciated that the property of can be applicable to of other techniques and/or the use of other materials.It addition, described below first is special
Levy second feature it " on " structure can include that the first and second features are formed as the embodiment directly contacted, it is possible to
To include the embodiment that other feature is formed between the first and second features, such first and second features may not
It it is directly contact.
In describing the invention, it is to be understood that term " longitudinally ", " laterally ", " on ", D score, "front", "rear",
"left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on
Orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, be not understood that
For limitation of the present invention.
In describing the invention, it should be noted that unless otherwise prescribed and limit, term " is installed ", " being connected ",
" connect " and should be interpreted broadly, for example, it may be mechanically connected or electrical connection, it is also possible to be the company of two element internals
Logical, can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, for those of ordinary skill in the art
Speech, can understand the concrete meaning of above-mentioned term as the case may be.
Fig. 2 is the structural representation of the four-drive hybrid electric vehicle of one embodiment of the invention.As in figure 2 it is shown, according to
The four-drive hybrid electric vehicle of the embodiment of the present invention includes: front-wheel 1, trailing wheel 2, wheel hub motor 3, electromotor 4, change
Speed device 5, ISG motor 6, clutch 7, inverter 8 and electrokinetic cell 9.
Specifically, wheel hub motor 3 can include two, respectively with front-wheel 1 by being mechanically connected, is used for driving front-wheel 1.
Wherein can realize being operated alone of front-wheel 1 by controlling wheel hub motor 3.
Electromotor 4 is connected with trailing wheel 2 by variator 5, is used for driving trailing wheel.ISG motor 6 is connected to electromotor 4
And between variator 5, it is used for driving trailing wheel 2.Before wherein electromotor 4 and ISG motor 6 can be arranged on automobile
In cabin, ISG motor 6 is that collection drives and the motor of power generation integrated, can work independently.
In one embodiment of the invention, four-drive hybrid electric vehicle also includes that decelerator and differential mechanism (do not show in figure
Go out), variator 5 is connected with trailing wheel 2 with differential mechanism by decelerator.Thus electromotor 4 or ISG motor 6 exports
Power can be transferred to trailing wheel 2 by variator 5, decelerator, differential mechanism.
Clutch 7 is connected between electromotor 4 and ISG motor 6, wherein logical between ISG motor 6 and clutch 7
Cross mechanical connection, ISG motor 6 can be realized by control clutch 7 and separate with electromotor 4, thus realize dynamic
Power departs from so that electromotor 4 and ISG motor 6 can be implemented separately idle running or shut down.
Inverter 8 is connected with wheel hub motor 3 and ISG motor 6 respectively, and wherein inverter 8 can be two.Power
Battery 9 is connected with inverter 8, for providing power for wheel hub motor 3 and ISG motor 6, and wherein electrokinetic cell 9
Can be connected with inverter 8 by high-voltage wiring harness.
Four-drive hybrid electric vehicle according to embodiments of the present invention, at least has following beneficial effect: (1) wheel hub is electric
Machine drives front-wheel, electromotor and/or ISG motor to drive trailing wheel, when using electromotor to drive trailing wheel, and the driving of trailing wheel
Power more than the driving force of front-wheel, improves the climbing of automobile, starts and the performance such as acceleration, i.e. improve the power of automobile
Property；(2) use In-wheel motor driving front-wheel and use ISG motor to drive trailing wheel, it is possible to achieve the pure electronic of four-wheel drives
Dynamic；(3) front-wheel uses In-wheel motor driving, simplifies front-wheel drive, reduces cost；(4) electromotor and
Use clutch to connect between ISG motor, being operated alone of electromotor or ISG motor can be realized by clutch
Trailing wheel, can use ISG motor individually with pure trailing wheel driven electrically, it is possible to use electromotor individually to start with pure
Machine mode drives trailing wheel, can select corresponding type of drive according to actual travel situation easily, thus reduce oil
Consumption and discharge, improve the fuel economy of automobile.
Fig. 3 is the structural representation of the four-drive hybrid electric vehicle of another embodiment of the present invention.As it is shown on figure 3, root
Include according to the four-drive hybrid electric vehicle of the embodiment of the present invention: front-wheel 1, trailing wheel 2, wheel hub motor 3, electromotor 4,
Variator 5, ISG motor 6, clutch 7, inverter 8, electrokinetic cell 9, clutch controller 10, wheel hub electricity
Machine controller 11, engine controller 12, ISG electric machine controller 13 and entire car controller 14.
Specifically, wheel hub motor 3 can include two, respectively with front-wheel 1 by being mechanically connected, is used for driving front-wheel 1.
Electromotor 4 is connected with trailing wheel 2 by variator 5, is used for driving trailing wheel.ISG motor 6 be connected to electromotor 4 with
Between variator 5, it is used for driving trailing wheel 2.Clutch 7 is connected between electromotor 4 and ISG motor 6.Inversion
Device 8 is connected with wheel hub motor 3 and ISG motor 6 respectively.Electrokinetic cell 9 is connected with inverter 8, is used for as wheel hub
Motor 3 and ISG motor 6 provides power.Wherein, four-drive hybrid electric vehicle also includes decelerator and differential mechanism (figure
Not shown in), variator 5 is connected with trailing wheel 2 with differential mechanism by decelerator.Thus electromotor 4 or ISG motor
The power of 6 outputs can be transferred to trailing wheel 2 by variator 5, decelerator, differential mechanism.
Clutch controller 10 is for being controlled clutch 7.Hub motor control device 11 is for wheel hub motor 3
It is controlled.Engine controller 12 is for being controlled electromotor 4.ISG electric machine controller 13 is for ISG
Motor 6 is controlled.Entire car controller 14 is used for the mode of operation according to four-drive hybrid electric vehicle to Clutch Control
Device 10, hub motor control device 11, engine controller 12 and ISG electric machine controller 13 are controlled.
In one embodiment of the invention, entire car controller 14 is by CAN and clutch controller 10, wheel
Hub electric machine controller 11, engine controller 12 are connected with ISG electric machine controller 13.CAN has highly reliable
The advantage such as property and good error detection capability.
In one embodiment of the invention, four-drive hybrid electric vehicle also includes abs controller (not shown),
Abs controller is connected with entire car controller 14 by CAN.
In one embodiment of the invention, four-drive hybrid electric vehicle also includes battery manager (not shown),
Battery manager is connected with electrokinetic cell 9 and entire car controller 14, is used under the control of entire car controller 14 dynamic
Power battery 9 charges and discharges management.Specifically, battery manager can control electrokinetic cell 9 and is in generating shape
State, now, electric current is flowed to wheel hub motor 3 and ISG motor 6 by electrokinetic cell 9 through inverter 8；Cell tube
Reason device can also control electrokinetic cell 9 and be in charged state, at this point it is possible to existed by wheel hub motor 3 and ISG motor 6
Energy during braking reclaims, and charges through the backward electrokinetic cell 9 of inverter 8, is achieved in the recovery of energy.
Illustrate that below according to specific embodiment the four-drive hybrid electric vehicle of the embodiment of the present invention uses under different operating modes
Different drive patterns realizes distributing rationally between wheel hub motor 3, electromotor 4 and ISG motor 6.Driving
During dynamic model selection, can select standard using preset vehicle speed as one, preset vehicle speed can be according to actual wheel hub electricity
Machine 3, the characteristic of electromotor 4 and ISG motor 6 are configured and are stored in entire car controller 14.
In one embodiment of the invention, when four-drive hybrid electric vehicle is in pure electric Drive Mode, car load control
Device 14 processed controls clutch 7 by clutch controller 10 and disconnects, and by hub motor control device 11 and/or ISG
Electric machine controller 13 controls wheel hub motor 3 and/or ISG motor 6 and is driven four-drive hybrid electric vehicle.
Such as, when automobile starting and speed are less than preset vehicle speed, simultaneously in the case of electrokinetic cell 9 electric power abundance, whole
Vehicle controller 14 can control wheel hub motor 4 by hub motor control device 11 and front-wheel 1 is operated alone make garage
Sail, or control ISG motor 6 also by ISG electric machine controller 13 and trailing wheel 2 is operated alone makes running car.Its
In, use the ISG motor 6 of high-peak power so that ISG motor 6 has and good performance is operated alone, both
Ensure fast starting function, ensure again the dynamic property of car load under electric-only mode.
In one embodiment of the invention, when the electricity of electrokinetic cell 9 is more than default charge value, mix at 4 wheel driven
Power vehicle startup control four-drive hybrid electric vehicle enters pure electric Drive Mode.Sufficient at electrokinetic cell 9 electric power
In the case of, electromotor 4 can not work, and entire car controller 14 controls wheel hub electricity by hub motor control device 11
Machine 4 is also controlled ISG motor 6 simultaneously driven running car by ISG electric machine controller 13, is achieved in short-time four-wheel
Drive.
Four-drive hybrid electric vehicle according to embodiments of the present invention, under pure electric Drive Mode, use motor 3 and/or
ISG motor 6 is driven, and due to the characteristic of motor low speed high torque, automobile can be made quickly to start, be greatly shortened
Acceleration time, reduce oil consumption and the discharge of automobile simultaneously, improve fuel economy.
In one embodiment of the invention, after the speed of four-drive hybrid electric vehicle is more than the first pre-set velocity value,
Four-drive hybrid electric vehicle enters pure engine mode, and entire car controller 14 controls clutch by clutch controller 10
Device 7 closes so that electromotor 4 accesses, and is controlled electromotor 4 started by engine controller 12, and by wheel
Hub electric machine controller 11 and ISG motor controls 13 devices control wheel hub motor 3 and ISG motors 4 and dallies.Wherein, exist
Four-drive hybrid electric vehicle starts a period of time speed more than after the first pre-set velocity value, at the operating point of electromotor 4
In relatively efficient scope, fuel economy is relatively good, now controls electromotor 4 work and can utilize pure electromotor mould
The slack time of formula carries out electrokinetic cell 9 and charges.
In one embodiment of the invention, after the speed of four-drive hybrid electric vehicle is more than the second pre-set velocity value,
Four-drive hybrid electric vehicle enters moderate mixing 4 wheel driven pattern, and entire car controller 14 is controlled by hub motor control device 11
Front-wheel 1 is driven by wheel hub motor 3 processed, and wherein, the second pre-set velocity value is more than the first pre-set velocity value.Specifically
Ground, when four-drive hybrid electric vehicle is after travelling a period of time more than the first pre-set velocity value, may accelerate to make car
Speed, more than the second pre-set velocity value, now can drive front-wheel 1 to make up electromotor 4 beyond warp by wheel hub motor 3
Power beyond Ji working region, so that electromotor 4 is operated in efficient region, it is achieved optimum drive efficiency, carries
The high acceleration of fuel economy and vehicle.
In one embodiment of the invention, after the speed of four-drive hybrid electric vehicle is more than the 3rd pre-set velocity value,
Four-drive hybrid electric vehicle enters strong dark 4 wheel driven pattern of closing, and entire car controller 14 is controlled by ISG electric machine controller 13
Trailing wheel 2 is driven by ISG motor 6 processed, and wherein, the 3rd pre-set velocity value is more than the second pre-set velocity value.Specifically
Ground, when four-drive hybrid electric vehicle is after travelling a period of time more than the second pre-set velocity value, may accelerate to make car
Speed is more than the 3rd pre-set velocity value, and now control electromotor 4, wheel hub motor 3 and ISG motor 6 work simultaneously, can
To provide high-power output, make the power performance of automobile and torque output reach optimal, improve automobile power performance and
Cross-country power, meets at different operating modes and the needs of driving intention.
In one embodiment of the invention, when four-drive hybrid electric vehicle slows down or brakes, four-drive hybrid electric vapour
Car enters braking mode, and entire car controller 14 is by hub motor control device 11 and/or ISG electric machine controller control
Make 13 wheel hub motor 3 and/or ISG motors 6 and enter power generation mode, so that electrokinetic cell 9 to be charged.Thus,
The kinetic energy of four-drive hybrid electric vehicle is changed into electric energy, is stored in electrokinetic cell 9, there is well braking simultaneously
Property, improve braking ability and capacity usage ratio.
Fig. 4 is the flow chart of the control method of the four-drive hybrid electric vehicle of one embodiment of the invention.As shown in Figure 4,
The control method of the four-drive hybrid electric vehicle of embodiment according to embodiments of the present invention, wherein four-drive hybrid electric vehicle
Can be for the four-drive hybrid electric vehicle described in any of the above-described embodiment, its control method comprises the steps.
Step S101, the current vehicle speed of detection four-drive hybrid electric vehicle.
Step S102, selects corresponding mode of operation according to current vehicle speed.
Step S103, controls or many in wheel hub motor 3, electromotor 4 and ISG motor 5 according to mode of operation
Individual driving four-drive hybrid electric vehicle.
The control method of the four-drive hybrid electric vehicle of embodiment according to embodiments of the present invention, can mix according to 4 wheel driven
The speed of power vehicle selects mode of operation flexibly, can select corresponding control mode according to different mode of operations,
Realize distributing rationally between electromotor, wheel hub motor and ISG motor, it is ensured that drive and high-power have simultaneously
Higher fuel economy.
In one embodiment of the invention, if be detected that the current vehicle speed of four-drive hybrid electric vehicle is pre-less than first
If velocity amplitude, then four-drive hybrid electric vehicle enters pure electric Drive Mode, controls clutch 7 and disconnects, and control wheel
Four-drive hybrid electric vehicle is driven by hub motor 3 and/or ISG motor 6.Such as, low when automobile starting and speed
In the first pre-set velocity value, simultaneously in the case of electrokinetic cell 9 electric power abundance, wheel hub motor 4 can be controlled and individually drive
Dynamic front-wheel 1 makes running car, or also controls ISG motor 6 and trailing wheel 2 is operated alone makes running car.Wherein,
Use the ISG motor 6 of high-peak power so that ISG motor 6 has and good performance is operated alone, both ensured
Fast starting function, ensures again the dynamic property of car load under electric-only mode.
In one embodiment of the invention, the electricity of detection electrokinetic cell 9, if the electricity of electrokinetic cell 9 is more than
Preset charge value, then enter pure motorized motions mould at four-drive hybrid electric vehicle startup control four-drive hybrid electric vehicle
Formula.In the case of electrokinetic cell 9 electric power abundance, electromotor 4 can not work, and controls wheel hub motor 4 and controls
ISG motor 6 simultaneously drives running car, is achieved in short-time four-wheel and drives.
The control method of four-drive hybrid electric vehicle according to embodiments of the present invention, under pure electric Drive Mode, uses
Motor 3 and/or ISG motor 6 is driven, and due to the characteristic of motor low speed high torque, automobile can be made quickly to start,
It is greatly shortened the acceleration time, reduces oil consumption and the discharge of automobile simultaneously, improve fuel economy.
In one embodiment of the invention, if the speed of four-drive hybrid electric vehicle more than the first pre-set velocity value it
After, then four-drive hybrid electric vehicle enters pure engine mode, controls clutch 7 and closes so that electromotor 4 accesses,
And control electromotor 4 and start, and control wheel hub motor 3 and ISG motor 6 and dally.Wherein, dynamic in 4 wheel driven mixing
Power automobile starting a period of time speed is more than after the first pre-set velocity value, and the operating point of electromotor 4 is in compares more efficient
Scope, fuel economy is relatively good, now controls electromotor 4 work when can utilize pure engine mode rich
Between carry out electrokinetic cell 9 and charge.
In one embodiment of the invention, if the speed of four-drive hybrid electric vehicle more than the second pre-set velocity value it
After, then four-drive hybrid electric vehicle enters moderate mixing 4 wheel driven pattern, controls wheel hub motor 3 and is driven front-wheel 1,
Wherein, the second pre-set velocity value is more than the first pre-set velocity value.Specifically, when four-drive hybrid electric vehicle is with more than
After one pre-set velocity value travels a period of time, may accelerate to make speed be more than the second pre-set velocity value, the most permissible
Front-wheel 1 is driven to exceed the power beyond economic work region to make up electromotor 4 by wheel hub motor 3, so that sending out
Motivation 4 is operated in efficient region, it is achieved optimum drive efficiency, improves the acceleration of fuel economy and vehicle.
In one embodiment of the invention, if the speed of four-drive hybrid electric vehicle more than the 3rd pre-set velocity value it
After, then four-drive hybrid electric vehicle enters strong dark 4 wheel driven pattern of closing, and trailing wheel 2 is driven by control ISG motor 6,
Wherein, the 3rd pre-set velocity value is more than the second pre-set velocity value.Specifically, when four-drive hybrid electric vehicle is with more than
After two pre-set velocity values travel a period of time, may accelerate to make speed be more than the 3rd pre-set velocity value, now control
Electromotor 4, wheel hub motor 3 and ISG motor 6 work simultaneously, it is provided that high-power output, make the power of automobile
Performance and torque output reach optimal, improve power performance and the cross-country power of automobile, meet in different operating modes and driving
The needs being intended to.
In one embodiment of the invention, whether detection four-drive hybrid electric vehicle enters deceleration or on-position, as
Really four-drive hybrid electric vehicle enters and slows down or on-position, then four-drive hybrid electric vehicle enters braking mode,
Control wheel hub motor 3 and/or ISG motor 6 and enter power generation mode, so that electrokinetic cell 9 to be charged.Thus, will
The kinetic energy of four-drive hybrid electric vehicle changes into electric energy, is stored in electrokinetic cell 9, has good braking simultaneously,
Improve braking ability and capacity usage ratio.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ", " show
Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes specific features, knot
Structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, to above-mentioned term
Schematic representation be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Person's feature can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand these embodiments can be carried out without departing from the principles and spirit of the present invention multiple change, amendment,
Replacing and modification, the scope of the present invention is limited by claims and equivalent thereof.
Claims (11)
1. a four-drive hybrid electric vehicle, it is characterised in that including:
Front wheels and rear wheels；
Wheel hub motor, described wheel hub motor is connected with described front-wheel, is used for driving described front-wheel；
Hub motor control device, for being controlled described wheel hub motor；
Electromotor, described electromotor is connected with described trailing wheel by variator, is used for driving described trailing wheel；
Engine controller, for being controlled described electromotor；
Starting the ISG motor of power generation all-in-one machine, described ISG motor is connected between described electromotor and described variator,
For driving described trailing wheel；
ISG electric machine controller, for being controlled described ISG motor；
Clutch, described clutch is connected between described electromotor and described ISG motor；
Clutch controller, for being controlled described clutch；
Inverter, described inverter is connected with described wheel hub motor and described ISG motor respectively；With
Electrokinetic cell, described electrokinetic cell is connected with inverter, for carrying for described wheel hub motor and described ISG motor
For power；
Entire car controller, for according to the mode of operation of described four-drive hybrid electric vehicle to described clutch controller,
Hub motor control device, engine controller and ISG electric machine controller are controlled；
Wherein, after the speed of described four-drive hybrid electric vehicle is more than the first pre-set velocity value, described 4 wheel driven mixes
Power vehicle enters pure engine mode, and described entire car controller controls described clutch by described clutch controller
Close so that described electromotor accesses, and by engine start described in described engine controller controls, and pass through
Wheel hub motor described in described hub motor control device and described ISG motor controller controls and the idle running of described ISG motor；
After the speed of described four-drive hybrid electric vehicle is more than the second pre-set velocity value, described four-drive hybrid electric vapour
Car enters moderate mixing 4 wheel driven pattern, and described entire car controller controls described wheel hub electricity by described hub motor control device
Described front-wheel is driven by machine, and wherein, described second pre-set velocity value is more than described first pre-set velocity value；
After the speed of described four-drive hybrid electric vehicle is more than the 3rd pre-set velocity value, described four-drive hybrid electric vapour
Car enters strong dark conjunction 4 wheel driven pattern, and described entire car controller is by ISG electricity described in described ISG motor controller controls
Described trailing wheel is driven by machine, and wherein, described 3rd pre-set velocity value is more than described second pre-set velocity value.
2. four-drive hybrid electric vehicle as claimed in claim 1, it is characterised in that described entire car controller passes through
CAN and described clutch controller, hub motor control device, engine controller and ISG electric machine controller phase
Even.
3. four-drive hybrid electric vehicle as claimed in claim 1, it is characterised in that also include:
Decelerator and differential mechanism, described variator is connected with described trailing wheel with differential mechanism by described decelerator.
4. four-drive hybrid electric vehicle as claimed in claim 1, it is characterised in that also include:
Battery manager, described battery manager is connected with described electrokinetic cell and described entire car controller, in institute
State, under the control of entire car controller, described electrokinetic cell is charged and discharged management.
5. four-drive hybrid electric vehicle as claimed in claim 2, it is characterised in that also include:
Abs controller, described abs controller is connected with described entire car controller by described CAN.
6. four-drive hybrid electric vehicle as claimed in claim 1, it is characterised in that when described four-drive hybrid electric vapour
When car is in pure electric Drive Mode, described entire car controller controls described clutch by described clutch controller and breaks
Open, and by wheel hub motor and/or ISG motor described in described hub motor control device and/or ISG motor controller controls
Described four-drive hybrid electric vehicle is driven.
7. four-drive hybrid electric vehicle as claimed in claim 6, it is characterised in that at the electricity of described electrokinetic cell
More than when presetting charge value, enter at four-drive hybrid electric vehicle described in described four-drive hybrid electric vehicle startup control system
Described pure electric Drive Mode.
8. four-drive hybrid electric vehicle as claimed in claim 1, it is characterised in that when described four-drive hybrid electric vapour
When car slows down or brakes, described four-drive hybrid electric vehicle enters braking mode, and described entire car controller passes through institute
State wheel hub motor described in hub motor control device and/or described ISG motor controller controls and/or described ISG motor enters
Power generation mode, to be charged described electrokinetic cell.
9. the control method of a four-drive hybrid electric vehicle, it is characterised in that described four-drive hybrid electric vehicle is power
Profit requires the four-drive hybrid electric vehicle according to any one of 1-8, said method comprising the steps of:
S1: detect the current vehicle speed of described four-drive hybrid electric vehicle；
S2: select corresponding mode of operation according to described current vehicle speed；And
S3: control in described wheel hub motor, described electromotor and described ISG motor according to described mode of operation
Or the multiple described four-drive hybrid electric vehicle of driving；
If the current vehicle speed of described four-drive hybrid electric vehicle is less than the first pre-set velocity value, the mixing of the most described 4 wheel driven is dynamic
Power automobile enters pure electric Drive Mode, controls described clutch and disconnects, and controls described wheel hub motor and/or ISG electricity
Described four-drive hybrid electric vehicle is driven by machine；
If the speed of described four-drive hybrid electric vehicle is more than after described first pre-set velocity value, the most described 4 wheel driven mixes
Close power vehicle and enter pure engine mode, control described clutch Guan Bi so that described electromotor accesses, and control institute
State engine start, and control described wheel hub motor and the idle running of described ISG motor；
If the speed of described four-drive hybrid electric vehicle is more than after the second pre-set velocity value, the mixing of the most described 4 wheel driven is dynamic
Power automobile enters moderate mixing 4 wheel driven pattern, controls described wheel hub motor and is driven described front-wheel, wherein, described
Second pre-set velocity value is more than described first pre-set velocity value；
If the speed of described four-drive hybrid electric vehicle is more than after the 3rd pre-set velocity value, the mixing of the most described 4 wheel driven is dynamic
Power automobile enters strong dark conjunction 4 wheel driven pattern, controls described ISG motor and is driven described trailing wheel, wherein, described
3rd pre-set velocity value is more than described second pre-set velocity value.
10. the control method of four-drive hybrid electric vehicle as claimed in claim 9, it is characterised in that also include:
Detect the electricity of described electrokinetic cell；And
If the electricity of described electrokinetic cell is more than presetting charge value, then in described four-drive hybrid electric vehicle startup control
Make described four-drive hybrid electric vehicle and enter described pure electric Drive Mode.
The control method of 11. four-drive hybrid electric vehicles as claimed in claim 9, it is characterised in that also include:
Detect whether described four-drive hybrid electric vehicle enters deceleration or on-position；
Slowing down or on-position if described four-drive hybrid electric vehicle enters, the most described four-drive hybrid electric vehicle enters
Braking mode, controls described wheel hub motor and/or described ISG motor enters power generation mode, with to described power current
Pond is charged.
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| CN103921664B (en) * | 2014-04-30 | 2016-08-24 | 河北御捷车业有限公司 | A kind of control method of EFI forerunner plug-in intelligent mixed power car |
| CN104149776B (en) * | 2014-08-27 | 2016-06-22 | 安徽江淮汽车股份有限公司 | A kind of hybrid vehicle system and control method thereof |
| CN104590019B (en) * | 2014-12-19 | 2017-08-04 | 中国人民解放军军事交通学院 | Driving electricity generation system |
| CN104627165B (en) * | 2015-01-30 | 2017-10-10 | 观致汽车有限公司 | Driving method for full driving mixed power vehicle |
| CN105083280A (en) * | 2015-07-27 | 2015-11-25 | 北汽福田汽车股份有限公司 | Method and system for controlling torque of four-wheel-drive vehicle |
| CN105346540B (en) * | 2015-12-03 | 2017-10-27 | 湖南大学 | A kind of Vehicular hybrid power assembly and its control method |
| CN106541838A (en) * | 2017-01-11 | 2017-03-29 | 遵义明日新能源科技有限公司 | A kind of new-energy automobile |
| CN108656923B (en) * | 2017-03-31 | 2024-04-16 | 比亚迪股份有限公司 | Hybrid electric vehicle and power system thereof |
| CN108656920B (en) * | 2017-03-31 | 2020-08-25 | 比亚迪股份有限公司 | Whole vehicle control method and power system of hybrid electric vehicle |
| CN108482129A (en) * | 2018-03-08 | 2018-09-04 | 武汉理工大学 | A kind of mixed electrical automobile drive system with supplementary energy device |
| CN109080441A (en) * | 2018-08-29 | 2018-12-25 | 徐州重型机械有限公司 | Special vehicle |
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