CN110203056A - A kind of multi-mode four-drive hybrid electric vehicle energy management control method - Google Patents
A kind of multi-mode four-drive hybrid electric vehicle energy management control method Download PDFInfo
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- CN110203056A CN110203056A CN201910480905.6A CN201910480905A CN110203056A CN 110203056 A CN110203056 A CN 110203056A CN 201910480905 A CN201910480905 A CN 201910480905A CN 110203056 A CN110203056 A CN 110203056A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
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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
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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
- B60W10/08—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
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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
- 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
- B60W20/15—Control strategies specially adapted for achieving a particular effect
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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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
- 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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- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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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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- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for 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)
- Arrangement And Driving Of Transmission Devices (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses a kind of multi-mode four-drive hybrid electric vehicle energy management control methods.This method includes the division of each operating mode and the energy distribution under each mode, so that four-drive hybrid electric vehicle is possessed good economy by the control to multi power sources such as engine and motors, plays the power savings advantages of hybrid vehicle.
Description
Technical field
The present invention relates to hybrid vehicle technology fields, and more precisely, the present invention is more particularly directed to a kind of multi-modes four
The energy management control method of driving mixed power automobile.
Background technique
With the development of Technology of Hybrid Electric Vehicle, more and more automobile vendors start to release four-drive hybrid electric product, are
The raising of people's trip quality is made that certain contribution.Four-drive hybrid electric vehicle is gathered around compared to the hybrid vehicle of two drive formulas
There are more operating modes, energy reasonably is carried out to four-drive hybrid electric vehicle and is assigned conducive to preferably in guarantee dynamic property
Under conditions of so that automobile is possessed good economy.
Summary of the invention
The purpose of the present invention is to provide a kind of energy management control methods of multi-mode four-drive hybrid electric vehicle, play
The power savings advantages of four-drive hybrid electric.
To achieve the above object, a kind of multi-mode four-drive hybrid electric vehicle energy management control method provided by the invention
The technical solution of realization is: the multi-mode four-drive hybrid electric vehicle includes engine (1), torsion vibration absorber (2), brake
(3), front axle differential (4), No. two motor and controllers (5), full-vehicle control unit (6), planet row (7), No.1 motor and
Its controller (8), rear axle differential (9), No. three motor and controllers (10), power battery and its management system (11)；
The engine (1) is connected by torsion vibration absorber (2) and brake (3) with the planet carrier of planet row (7), institute
It states No.1 motor (8) to be connected with the sun gear of planet row (7), No. two motors (5) pass through gear pair and planet row (7) phase
Connection, No. three motors (10) are connect by gear pair with rear axle differential (9)；
The brake (3) is arranged on the axis connecting with torsion vibration absorber (2), can be with the planet of locking planet row (7)
Frame；
Full-vehicle control unit (6) the acquisition vehicle operating state signal, brake signal and accelerator pedal signal, braking are stepped on
Partitioned signal etc., the travel condition of vehicle signal include at least speed signal, No.1 motor and controller (8), No. two motors
And its signals such as controller (5), power battery and its management system (11), engine (1)；The full-vehicle control unit and hair
Motivation (1), No.1 motor and controller (8), No. two motor and controllers (5), power battery and its management system (11)
Between communicated by CAN；
The multi-mode four-drive hybrid electric vehicle energy management control method specifically comprises the following steps:
(1) judge that vehicle is in drive mode or braking mode according to accelerator pedal signal, brake pedal signal and speed；
(2) if being in braking mode, when speed is greater than threshold value vregWhen, it controls No. two motors (5) and carries out braking energy time
It receives, speed is less than threshold value vreg, using mechanical braking；
(3) if being in drive mode, vehicle requirement drive is calculated according to speed, accelerator pedal and power battery charged state
Power PreqWith demand torque Treq, power P according to demandreq, power battery charged state SOC judge the operating mode of vehicle, packet
Include forerunner's single motor electric-only mode, forerunner's bi-motor electric-only mode, forerunner's hybrid mode, four-drive hybrid electric mould
Formula；
(4) coordinated control engine (1), No.1 motor (8), No. two motors (5) and No. three motors under each drive mode
(10) etc. it works.
Further, in the step (1), brake pedal vehicle i.e. enter braking mode, bend the throttle and
Vehicle enters drive mode when not stepping on brake pedal.
Further, in the step (3), when SOC is greater than given threshold SOCL, demand power PreqLess than given threshold
P1And demand torque TreqLess than given threshold ThWhen, vehicle is in forerunner's single motor electric-only mode；
When SOC is greater than given threshold SOCL, demand power PreqLess than given threshold P1And demand torque TreqGreater than setting
Determine threshold value ThWhen, vehicle is in forerunner's bi-motor electric-only mode；
When SOC is less than given threshold SOCL or demand power PreqIn given threshold P1And P2Between when, vehicle is in
Forerunner's hybrid mode；
As demand power PreqP when greater than threshold value2, vehicle is in four-drive hybrid electric mode.
Further,
In the step (4), when vehicle is in forerunner's single motor electric-only mode, whole demand torque TreqBy No. two
Motor (5) provides, that is, meets formula (1), Tm2_ctrlFor the torque control signal of No. two motors (5), im2It is No. two motors (5) with before
The transmission ratio of between centers；
Tm2_ctrl=Treq/im2 (1)
When vehicle is in forerunner's bi-motor electric-only mode, control brake (3) locking, demand torque TreqBy No.1
Motor (8) and No. two motors (5) provide jointly, meet formula (2) relationship, Tm1_ctrlFor the torque control signal of No.1 motor (8)；
When vehicle is in forerunner's hybrid mode, demand torque is mentioned jointly by engine (1) and No. two motors (5)
For meeting formula (3), Te_ctrlFor engine (1) torque control signal, Te_optFor according to demand power PreqIn engine optimum work
The engine optimum operation torque checked in as curve, k are the ratio between the planet row gear ring number of teeth and the sun gear number of teeth；
When vehicle is in four-drive hybrid electric mode, demand torque is by engine (1), No. two motors (5) and No. three electricity
Machine (10) provides jointly, meets formula (4), Tm3_ctrlFor the torque control signal of No. three motors (10), im3No. three motors (10) with
Transmission ratio between rear axle.
Compared with prior art, the beneficial effects of the present invention are: the multi-mode 4 wheel driven mixing for planet mixed connection form is dynamic
Power automobile promotes vehicle energy-saving effect by the cooperation to engine and motor.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is a kind of multi-mode four-drive hybrid electric vehicle configuration schematic diagram；
Fig. 2 is a kind of multi-mode four-drive hybrid electric vehicle energy management control method flow chart；
In figure: No. bis- motor and controller 6- of 1- engine 2- torsion vibration absorber 3- brake 4- front axle differential 5- are whole
Vehicle control unit 7- planet row 8- No.1 No. tri- motor 11- power batteries of motor and controller 9- rear axle differential 10- and its
Management system
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.It should be noted that
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and should not be understood as to the present invention
Limitation.
Fig. 1 illustrates a kind of configuration schematic diagram of multi-mode four-drive hybrid electric vehicle, the multi-mode four-drive hybrid electric
Automobile includes engine (1), torsion vibration absorber (2), brake (3), front axle differential (4), No. two motor and controllers
(5), full-vehicle control unit (6), planet row (7), No.1 motor and controller (8), rear axle differential (9), No. three motors and
Its controller (10), power battery and its management system (11)；
The engine (1) is connected by torsion vibration absorber (2) and brake (3) with the planet carrier of planet row (7), institute
It states No.1 motor (8) to be connected with the sun gear of planet row (7), No. two motors (5) pass through gear pair and planet row (7) phase
Connection, No. three motors (10) are connect by gear pair with rear axle differential (9)；
The brake (3) is arranged on the axis connecting with torsion vibration absorber (2), can be with the planet of locking planet row (7)
Frame；
Full-vehicle control unit (6) the acquisition vehicle operating state signal, brake signal and accelerator pedal signal, braking are stepped on
Partitioned signal etc., the travel condition of vehicle signal include at least speed signal, No.1 motor and controller (8), No. two motors
And its signals such as controller (5), power battery and its management system (11), engine (1).The full-vehicle control unit and hair
Motivation (1), No.1 motor and controller (8), No. two motor and controllers (5), power battery and its management system (11)
Between communicated by CAN.
Fig. 2 describes a kind of multi-mode four-drive hybrid electric vehicle energy management control method process, the multi-mode
Four-drive hybrid electric vehicle energy management control method specifically comprises the following steps:
(1) judge that vehicle is in drive mode or braking mode according to accelerator pedal signal, brake pedal signal and speed；
(2) if being in braking mode, when speed is greater than threshold value vregWhen, it controls No. two motors (5) and carries out braking energy time
It receives, speed is less than threshold value vreg, using mechanical braking；
(3) if being in drive mode, vehicle requirement drive is calculated according to speed, accelerator pedal and power battery charged state
Power PreqWith demand torque Treq, power P according to demandreq, power battery charged state SOC judge the operating mode of vehicle, packet
Include forerunner's single motor electric-only mode, forerunner's bi-motor electric-only mode, forerunner's hybrid mode, four-drive hybrid electric mould
Formula；
(4) coordinated control engine (1), No.1 motor (8), No. two motors (5) and No. three motors under each drive mode
(10) etc. it works.
Further, in the step (1), brake pedal vehicle i.e. enter braking mode, bend the throttle and
Vehicle enters drive mode when not stepping on brake pedal.
Further, in the step (3), when SOC is greater than given threshold SOCL, demand power PreqLess than given threshold
P1And demand torque TreqLess than given threshold ThWhen, vehicle is in forerunner's single motor electric-only mode；
When SOC is greater than given threshold SOCL, demand power PreqLess than given threshold P1And demand torque TreqGreater than setting
Determine threshold value ThWhen, vehicle is in forerunner's bi-motor electric-only mode；
When SOC is less than given threshold SOCL or demand power PreqIn given threshold P1And P2Between when, vehicle is in
Forerunner's hybrid mode；
As demand power PreqP when greater than threshold value2, vehicle is in four-drive hybrid electric mode.
Further,
In the step (4), when vehicle is in forerunner's single motor electric-only mode, whole demand torque TreqBy No. two
Motor (5) provides, that is, meets formula (1), Tm2_ctrlFor the torque control signal of No. two motors (5), im2It is No. two motors (5) with before
The transmission ratio of between centers；
Tm2_ctrl=Treq/im2 (1)
When vehicle is in forerunner's bi-motor electric-only mode, control brake (3) locking, demand torque TreqBy No.1
Motor (8) and No. two motors (5) provide jointly, meet formula (2) relationship, Tm1_ctrlFor the torque control signal of No.1 motor (8)；
When vehicle is in forerunner's hybrid mode, demand torque is mentioned jointly by engine (1) and No. two motors (5)
For meeting formula (3), Te_ctrlFor engine (1) torque control signal, Te_optFor according to demand power PreqIn engine optimum work
The engine optimum operation torque checked in as curve, k are the ratio between the planet row gear ring number of teeth and the sun gear number of teeth；
When vehicle is in four-drive hybrid electric mode, demand torque is by engine (1), No. two motors (5) and No. three electricity
Machine (10) provides jointly, meets formula (4), Tm3_ctrlFor the torque control signal of No. three motors (10), im3No. three motors (10) with
Transmission ratio between rear axle.
The part that do not address in the present invention uses or uses for reference prior art and can be realized.
The foregoing is merely one embodiment of the present of invention, are not intended to restrict the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent substitution, improvement and etc. done be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of multi-mode four-drive hybrid electric vehicle energy management control method, it is characterised in that:
The multi-mode four-drive hybrid electric vehicle includes engine (1), torsion vibration absorber (2), brake (3), front axle differential
Device (4), No. two motor and controllers (5), full-vehicle control unit (6), planet row (7), No.1 motor and controller (8),
Rear axle differential (9), No. three motor and controllers (10), power battery and its management system (11)；
The engine (1) is connected by torsion vibration absorber (2) and brake (3) with the planet carrier of planet row (7), and described one
Number motor (8) is connected with the sun gear of planet row (7), and No. two motors (5) are connected by gear pair with planet row (7)
It connects, No. three motors (10) are connect by gear pair with rear axle differential (9)；
The brake (3) is arranged on the axis connecting with torsion vibration absorber (2), can be with the planet carrier of locking planet row (7)；
Full-vehicle control unit (6) the acquisition vehicle operating state signal, brake signal and accelerator pedal signal, brake pedal letter
Number etc., the travel condition of vehicle signal include at least speed signal, No.1 motor and controller (8), No. two motors and its
The signals such as controller (5), power battery and its management system (11), engine (1)；The full-vehicle control unit and engine
(1), No.1 motor and controller (8), between No. two motor and controllers (5), power battery and its management system (11)
It is communicated by CAN；
The multi-mode four-drive hybrid electric vehicle energy management control method specifically comprises the following steps:
(1) judge that vehicle is in drive mode or braking mode according to accelerator pedal signal, brake pedal signal and speed；
(2) if being in braking mode, when speed is greater than threshold value vregWhen, it controls No. two motors (5) and carries out Brake energy recovery, vehicle
Speed is less than threshold value vreg, using mechanical braking；
(3) if being in drive mode, vehicle requirement drive power is calculated according to speed, accelerator pedal and power battery charged state
PreqWith demand torque Treq, power P according to demandreq, power battery charged state SOC judge the operating mode of vehicle, including it is preceding
Drive single motor electric-only mode, forerunner's bi-motor electric-only mode, forerunner's hybrid mode, four-drive hybrid electric mode；
(4) coordinated control engine (1), No.1 motor (8), No. two motors (5) and No. three motors (10) under each drive mode
Etc. working.
2. a kind of multi-mode four-drive hybrid electric vehicle energy management control method according to claim 1, feature exist
In:
In the step (1), brake pedal vehicle enters braking mode, bend the throttle and when not stepping on brake pedal
Vehicle enters drive mode.
3. a kind of multi-mode four-drive hybrid electric vehicle energy management control method according to claim 1, feature exist
In:
In the step (3), when SOC is greater than given threshold SOCL, demand power PreqLess than given threshold P1And demand torque
TreqLess than given threshold ThWhen, vehicle is in forerunner's single motor electric-only mode；
When SOC is greater than given threshold SOCL, demand power PreqLess than given threshold P1And demand torque TreqGreater than given threshold
ThWhen, vehicle is in forerunner's bi-motor electric-only mode；
When SOC is less than given threshold SOCL or demand power PreqIn given threshold P1And P2Between when, vehicle is in forerunner
Hybrid mode；
As demand power PreqP when greater than threshold value2, vehicle is in four-drive hybrid electric mode.
4. a kind of multi-mode four-drive hybrid electric vehicle energy management control method according to claim 1, feature exist
In:
In the step (4), when vehicle is in forerunner's single motor electric-only mode, whole demand torque TreqBy No. two motors
(5) it provides, that is, meets formula (1), Tm2_ctrlFor the torque control signal of No. two motors (5), im2Between No. two motors (5) and front axle
Transmission ratio；
Tm2_ctrl=Treq/im2 (1)
When vehicle is in forerunner's bi-motor electric-only mode, control brake (3) locking, demand torque TreqBy No.1 motor
(8) it is provided jointly with No. two motors (5), meets formula (2) relationship, Tm1_ctrlFor the torque control signal of No.1 motor (8)；
When vehicle is in forerunner's hybrid mode, demand torque is provided jointly by engine (1) and No. two motors (5), full
Sufficient formula (3), Te_ctrlFor engine (1) torque control signal, Te_optFor according to demand power PreqIt works in engine optimum bent
The engine optimum operation torque that line checks in, k are the ratio between the planet row gear ring number of teeth and the sun gear number of teeth；
When vehicle is in four-drive hybrid electric mode, demand torque is by engine (1), No. two motors (5) and No. three motors
(10) common to provide, meet formula (4), Tm3_ctrlFor the torque control signal of No. three motors (10), im3No. three motors (10) are with after
The transmission ratio of between centers；
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