CN102774263A - Control method of hybrid power driving system - Google Patents
Control method of hybrid power driving system Download PDFInfo
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- CN102774263A CN102774263A CN201210295473XA CN201210295473A CN102774263A CN 102774263 A CN102774263 A CN 102774263A CN 201210295473X A CN201210295473X A CN 201210295473XA CN 201210295473 A CN201210295473 A CN 201210295473A CN 102774263 A CN102774263 A CN 102774263A
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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 invention relates to a control method of a hybrid power driving system. The driving system comprises an engine, a first electric motor, a second electric motor and a satellite gear component and is characterized by further comprising a first clutch device arranged between the engine and the first electric motor, a second clutch device between the engine and a sun wheel of the satellite gear component, a third clutch device capable of locking a gear ring and a fourth clutch device capable of locking a rotor of the second electric motor. The driving method controls the driving system to be in working condition modes such as pure electromotion, serial connection and parallel connection according to the electric quantity of an energy storing device and the current vehicle speed condition so that the system has more gear shifts as compared with the traditional hybrid power vehicles, and the fuel economy of the engine can be improved effectively.
Description
Technical field
The present invention relates to a kind of drive controlling method of hybrid electric drive system.
Background technology
New-energy automobiles such as hybrid vehicle generally are with driving engine and two kinds of dynamic mixing of electrical motor; Carry out rotating speed and torque coupling according to certain control policy; Finally export to wheel again, it has utilized the dynamic characteristic of motor to remedy the deficiency of engine power characteristic, makes engine operation better between efficiency area; Simultaneously can reclaim braking energy, so energy-saving and emission-reduction.
Hybrid electric drive system generally has tandem, parallel, series parallel type; Wherein series parallel type is the hybrid power system type of drive that generally adopts at present; The arrangement of series-parallel hybrid electric system combines the characteristics of tandem arrangement and parallel arrangement; Providing according to different operating modes lets oil, two kinds of energy of electricity combine three kinds of pattern work according to series, parallel or connection in series-parallel respectively, thereby make hybrid power system to select different power driven modes for use according to different working conditions.
Topmost contradiction is the seamless coupling between driving engine and the electrical motor in the existing hybrid power actuation techniques; In direct motor drive and the main very big interval by engine-driven operation interval; Driving engine can't really be operated in fuel oil and efficiently distinguish, and the advantage of the more traditional fuel-engined vehicle of hybrid vehicle can not be given full play to.Prior art generally all is to carry out many grades of mode of operations of driving engine through arrangement of clutch such as machinery or electromagnetism, planetary wheel iso-variable velocity device to be connected combination with the outside of electrical motor, realizes the coupling of driving engine and electrical motor through torque coupling, rotating speed coupling.Conventional engines generally has two grades of change speed gear boxs, can under different working conditions, make driving engine be operated in efficient district as much as possible through regulation stall.But in fact, two grades of speed changes can not make driving engine be fully operational in fuel oil and efficiently distinguish, and in very big one section speed interval, driving engine still is operated in the poor efficiency district between two grades.
On the other hand, use sun and planet gear to realize in the device of each power unit power distribution usually, Engine Mechanical can only be transmitted through sun and planet gear, and its driving efficiency can cause the loss of energy, and the control aspect is quite complicated.
In order to address the above problem; The application's applicant has invented a kind of hybrid electric drive system; Comprise driving engine, first electrical motor, second electrical motor, one group of sun and planet gear and four groups of arrangement of clutch; Through cooperating of arrangement of clutch and sun and planet gear, the vehicle that this drive system is housed can be realized five grades of outputs, that is: pure electronic shelves, oil electricity mix one grade, oil electricity and mix second gear, pure driving engine shelves and braking brake shelves.The present invention improves the control method of above-mentioned hybrid electric drive system, to realize the better energy-conservation fuel-economizing property of vehicle.
Summary of the invention
The invention provides a kind of control method of hybrid electric drive system, effectively improve the coupling efficiency of driving engine and electrical motor, simplified system makes driving engine be operated in efficient district better, realizes good fuel economy.
The hybrid electric drive system that hybrid electric drive system control method of the present invention relates to comprises driving engine, first motor, second motor, planetary gear members and closed-center system; The gear ring of said planetary gear members links to each other with said first rotor axis of electric, and the sun wheel of said planetary gear members links to each other with said second rotor axis of electric, and the pinion carrier of said planetary gear members links to each other with this device clutch end; Said closed-center system links to each other with said first motor, second motor; It is characterized in that:
Also be provided with first arrangement of clutch between said driving engine and said first rotor axis of electric; Also be provided with second arrangement of clutch between the sun wheel of said driving engine and said sun and planet gear; Also comprise the 3rd arrangement of clutch, be arranged between the gear ring and car body fixed parts of sun and planet gear; Also comprise the 4th arrangement of clutch, be arranged between said second motor rotor and the car body fixed parts;
Said control method comprises:
According to energy storage situation, current vehicle speed situation and the Das Gaspedal degree of depth of closed-center system, control said drive system and be in electric-only mode, series-parallel connection pattern, paralleling model one, paralleling model two, driving engine direct drive pattern or braking energy take-back model.
In the above-mentioned control method,, judge the electric weight situation control hybrid power system Starting mode of closed-center system, when closed-center system electric weight SOC>=SOC0, control said hybrid electric drive system and start with electric-only mode when vehicle during by static startup;<during SOC0, start the engine is controlled said hybrid electric drive system and is started with the series-parallel connection pattern when containing device electric weight SOC.
When said hybrid electric drive system started with pure electronic mode, said hybrid electric drive system can use first motor or the second motor independent drive, perhaps first motor and the second motor driven in common;
Drive system control method of the present invention is confirmed the operating mode of drive system through energy storage situation, current vehicle speed situation and the Das Gaspedal degree of depth of closed-center system; And according to the reasonably power output of first motor, second motor and the driving engine of control-driven system of power demand; This method can make hybrid electric drive system bring into play the usefulness of self well, in the power that satisfies the demands, realizes the utilization to the energy maximal efficiency.Supplementary features of the present invention and the corresponding advantages specific embodiment below partly is elaborated.
Description of drawings
Fig. 1 is according to a kind of hybrid electric drive system scheme drawing of the present invention.
Fig. 2 is according to hybrid electric drive system electric-only mode Dual-motors Driving pattern diagram of the present invention.
Fig. 3 is according to the hybrid electric drive system electric-only mode first motor drive mode scheme drawing of the present invention.
Fig. 4 is according to the hybrid electric drive system electric-only mode second motor drive mode scheme drawing of the present invention.
Fig. 5 is according to hybrid electric drive system series-parallel connection pattern diagram of the present invention.
Fig. 6 is according to hybrid electric drive system paralleling model one scheme drawing of the present invention.
Fig. 7 is according to hybrid electric drive system paralleling model two scheme drawings of the present invention.
Fig. 8 is that hybrid electric drive system driving engine according to the present invention directly drives pattern diagram.
Fig. 9 is the diagram of circuit of hybrid electric drive system control method of the present invention.
Wherein, the 1st, driving engine, the 2nd, planetary gear members, the 21st, gear ring; The 22nd, sun wheel, the 23rd, pinion carrier, the 3rd, power transmission gear, the 4th, closed-center system; M1 is first motor, and M2 is second motor, and C1 is first arrangement of clutch; C2 is second arrangement of clutch, and C3 is first drg, and C4 is second drg.
The specific embodiment
Hybrid electric drive system
Patent examination helps the public more directly to understand the present invention for ease, at first combines 8 pairs of hybrid electric drive systems used in the present invention of accompanying drawing 1 to accompanying drawing to be described in detail below.
According to hybrid electric drive system used in the present invention, this system can comprise planetary gear members 2, and it comprises gear ring 21, sun wheel 22 and pinion carrier 23.Wherein, gear ring 21 links to each other with first motor M, 1 rotor shaft, and sun wheel 22 links to each other with second motor M, 2 rotor shafts, and pinion carrier 23 links to each other with this device clutch end; Closed-center system 4 links to each other with first motor M 1, second motor M 2;
The first arrangement of clutch C1 is arranged between driving engine 1 and first motor M, 1 rotor shaft, and 1 in driving engine engages through the first arrangement of clutch C1 with first motor M, 1 rotor shaft or separates; The second arrangement of clutch C2 is arranged between driving engine 1 and the sun wheel 22, engages through the second arrangement of clutch C2 between 1 in driving engine and the sun wheel 22 or separates; The 3rd arrangement of clutch C3 can make and engage between gear ring 21 and the car body fixed parts or separate; The 4th arrangement of clutch C4 can make and engage between the second electrical motor M2 rotor and the car body fixed parts or separate, and car body connecting element described here can be perhaps other and the car body parts that can not relatively move of sun and planet gear casing or motor stator.Transmission gear 3 is arranged between pinion carrier 23 and the wheel drive shaft, the setting of convenient said the 4th arrangement of clutch C4.The first arrangement of clutch C1, the second arrangement of clutch C2, the 3rd arrangement of clutch C3, the 4th arrangement of clutch C4 link to each other with a control system (not marking among the figure) electricity.
In order to make accompanying drawing concisely clear, closed-center system 4 does not indicate in Fig. 2 to Fig. 8, but does not comprise closed-center system in the above-mentioned pattern of not meaning.
Each arrangement of clutch is through the control system state of a control in this drive system.Each electric machine controller is controlled motor as required as generator for electricity generation or as the direct motor drive vehicle.The Das Gaspedal place is equipped with the pedal depth transducer, and system controls each arrangement of clutch state through detecting the Das Gaspedal degree of depth, selects the relevant work pattern.
When said hybrid electric drive system is in electric-only mode; Driving engine does not start, and the first arrangement of clutch C1, second arrangement of clutch C2 branch are opened, and the 3rd arrangement of clutch C3, the 4th arrangement of clutch C4 branch are opened; By M1, M2 driven in common vehicle, as shown in Figure 2; Perhaps the first arrangement of clutch C1, the second arrangement of clutch C2, the 3rd arrangement of clutch C3 branch are opened, and the 4th arrangement of clutch C4 engages, and is by electrical motor M1 independent drive vehicle launch, as shown in Figure 3; The first arrangement of clutch C1, the second arrangement of clutch C2, the 3rd arrangement of clutch C3 engage, and the 4th arrangement of clutch C4 branch is opened, and is by electrical motor M2 independent drive vehicle, as shown in Figure 4.Electric-only mode can be used for vehicle start, low speed driving (being lower than first preset vehicle speed of setting) or braking energy and reclaim state.
When said system is in the series-parallel connection pattern, engine starting, the first arrangement of clutch C1, the second arrangement of clutch C2 engage, and the 3rd arrangement of clutch C3, the 4th arrangement of clutch C4 open, and be as shown in Figure 5.By motor-powered vehicle, first motor M 1 and engine speed coupling, second motor M 2 and motor torque coupling.This pattern is applicable to that this hybrid power system by under the static startup operating mode, efficiently distinguishes at fuel oil for making engine operation, and control can be controlled first motor M 1 and 2 generatings of second motor M.When needs upward slope or load acceleration, second motor M 2 guarantees like this that for driving engine provides power torque driving engine stably is operated in the fuel-economy district.
When system is in paralleling model for the moment, engine starting, the first arrangement of clutch C1 divide to be opened, and the second arrangement of clutch C2 engages, and the 3rd arrangement of clutch C3 engages, and the 4th arrangement of clutch C4 divides and opens, and is as shown in Figure 6.By motor-powered vehicle, through the planetary wheel appropriate design, designed engines output reduction of speed ratio; Be that driving engine is exported than reduction of speed with higher reduction of speed; Make engine operation in the fuel-economy district, according to the operating mode needs, when vehicle load is quickened or climbed; Electrical motor M2 torque and motor torque coupling output are for takeoff output increases torque.This oil electricity mixed mode is applicable to the middle low speed driving when vehicle is lower than the second preset vehicle speed V2 of setting, makes the operation interval of driving engine wideer, and the design of fuel economy more rationalizes.
When system was in paralleling model two, the first arrangement of clutch C1 engaged, and second arrangement of clutch C2 branch is opened, and the 3rd arrangement of clutch C3 branch is opened, and the 4th arrangement of clutch C4 engages, and is as shown in Figure 7.Set speed V 2 when vehicle is higher than second, this moment, driving engine than under can not satisfy the condition that is operated in efficient district at high reduction of speed, continued to operate in efficient district for making driving engine, needed to improve driving engine output reduction of speed ratio, and driving engine deceleration under than the sinking speed ratio is exported.According to the operating mode needs, when vehicle load is quickened or is climbed, electrical motor M1 torque and motor torque coupling output.This oil electricity mixed mode is applicable to that vehicle drives at moderate speed, when promptly the speed of a motor vehicle is lower than the 3rd preset vehicle speed V3 of setting.
When system was in driving engine and directly drives pattern, the first arrangement of clutch C1 and the second arrangement of clutch C2 engaged, and the 3rd arrangement of clutch C3 and the 4th arrangement of clutch C4 divide and open, and be as shown in Figure 8.When vehicle need be run at high speed, driving engine need not slow down to export and can be operated in high velocity, and make the driving engine direct drive can satisfy it and be operated in the fuel-economy district, then can use this directly to drive pattern this moment.When vehicle is under the decelerating mode, motor M 1, M2 reclaim vehicle energy as electrical generator, are converted into power storage in closed-center system, in order to driving motor.
The hybrid electric drive system control method
Be provided with in the control method of hybrid electric drive system involved in the present invention to the predetermined electric weight SOC0 of said closed-center system, vehicle can be by the static first preset vehicle speed V1 that accelerates to when this charge value can satisfy by single motor-driven or Dual-motors Driving; If electric weight is less than SOC0, then system gets into the paralleling model driving.
The first preset vehicle speed V1 is that system satisfies the entering paralleling model speed of a motor vehicle of engine operation under the condition in the efficient district of fuel oil for the moment; After the speed of a motor vehicle reaches V1, judge whether to continue to quicken through Das Gaspedal, if continue to quicken, control system gets into paralleling model one; If do not have the wish of acceleration, then keep the work at present pattern; If deceleration wish or current vehicle speed are arranged, get back to a mode of operation less than V1.The detection Das Gaspedal degree of depth that relates among the present invention judges that the method for quickening wish is identical with traditional pure electric vehicle, repeats no more.
The second preset vehicle speed V2 is that system satisfies the speed of a motor vehicle of engine operation under the condition in the efficient district of fuel oil when getting into paralleling model two; After the speed of a motor vehicle reaches V2, judge whether to continue to quicken through Das Gaspedal, if continue to quicken, control system gets into paralleling model two; If do not have the wish of acceleration, then keep the work at present pattern; If deceleration wish or current vehicle speed are arranged, get back to a mode of operation less than V2.
The 3rd preset vehicle speed V3 is that system satisfies the speed of a motor vehicle of engine operation under the condition in the efficient district of fuel oil when getting into driving engine direct drive pattern; After the speed of a motor vehicle reaches V3, judge whether to continue to quicken through Das Gaspedal, if continue to quicken, control system gets into the driving engine direct drive; If do not have the wish of acceleration, then keep the work at present pattern; If deceleration wish or current vehicle speed are arranged, get back to a mode of operation less than V3.
Below, specify in conjunction with 2 ~ 9 pairs of hybrid electric drive system drive controlling methods of the present invention of accompanying drawing.
At first, vehicle is judged the closed-center system electric weight during by static startup, is specially, as electric weight SOC>SOC0, use electric-only mode to start by vehicle; < SOC0 uses the series-parallel connection pattern to start by vehicle as electric weight SOC.
When using electric-only mode to start; Can use first motor and the second motor driven in common, this moment, driving engine did not start, through the cooperation of each arrangement of clutch of control system control; Drive system is under the electric-only mode; Controller is controlled motor M 1 respectively, M2 uses as electrical motor, the driven in common vehicle, and control process is following:
Each arrangement of clutch of control system control makes system get into electric-only mode, and as shown in Figure 2, arrangement of clutch C1, C2, C3, C4 all separate at this moment.M1, M2 driven in common vehicle are compared with the single motor powered vehicle, and two motor-driven are more powerful; Through planetary effect, the two all adopts reduction of speed to increase the mode of turning round and does input component, under power unmodified situation; Can reduce motor volume and weight through improving motor speed;
In addition, also can use single motor to drive according to operating mode, arrangement of clutch C1, C2, C3 branch leave at this moment, and the 4th arrangement of clutch C4 engages, and is as shown in Figure 3 by first motor M, 1 independent drive vehicle launch; Perhaps arrangement of clutch C1, C2, C3 engages, and the 4th arrangement of clutch C4 divides and opens, and is as shown in Figure 4 by second motor M, 2 independent drive vehicle launchs.
After the speed of a motor vehicle reached the first preset vehicle speed V1, control system was through the acceleration wish of the depth finding chaufeur of Das Gaspedal, if the Das Gaspedal degree of depth is darker; If the acceleration wish is arranged, control system control hybrid electric drive system gets into paralleling model one: engine starting, by motor-powered vehicle; Through the planetary wheel appropriate design, designed engines output reduction of speed ratio, promptly driving engine is exported than reduction of speed with higher reduction of speed; Make engine operation in the fuel-economy district, system gets into paralleling model one, the first arrangement of clutch C1 and opens; The second arrangement of clutch C2, the 3rd arrangement of clutch C3 engage, and the 4th arrangement of clutch C4 opens, and is as shown in Figure 5.
Control process is following:
, drive system needs further to quicken after reaching the first preset vehicle speed V1 with the series model powered vehicle; Controlling first motor speed reduces; For making speed of a motor vehicle held stationary; It is in the opposite direction with turn of engine to control second motor M 2 simultaneously, when first motor M, 1 speed drop when approaching 0, control the 3rd arrangement of clutch C3 and engage.
When after M1, M2 driven in common vehicle reach the first preset vehicle speed V1, further quickening; Control the second arrangement of clutch C2 and engage, motor M 2 drives engine startings, and M2 rotating speed and reduce the M1 rotating speed simultaneously raises; To motor M 1 rotating speed is that 0, the three arrangement of clutch C3 engages.According to the operating mode needs, when vehicle load was quickened or climbed, 2 torques of second motor M and motor torque coupling output were that takeoff output increases torque.
In addition, if adopt M1 independent drive vehicle to reach when needing further to quicken behind the first preset vehicle speed V1, open the 4th arrangement of clutch C4; Engage the second arrangement of clutch C2; Starter motor M2 drives engine startings by motor M 2, can disable motor M2 behind the engine starting; Make its idle running, reach purpose of power saving.Adjustment driving engine output speed, its rotating speed when gear ring rotating speed and electrical motor M1 rotating speed are complementary, engage arrangement of clutch C3 through the planetary wheel transmission, drive system entering paralleling model one.The benefit of doing like this is to make motor M 1 steady with driving engine coupling output speed, prevents the rotating speed sudden change, causes that vehicle jolts.
In addition, if M2 independent drive vehicle reaches when needing behind the first preset vehicle speed V1 further to quicken, motor M 1 is made starter motor; Earlier arrangement of clutch C1 is engaged, drive engine starting by M1, driving engine is identical with motor M 1 rotating speed; With motor M 2 rotating speeds coupling output, need control motor M2 rotating speed in this case, be that second arrangement of clutch C2 joint is prepared on the one hand; Make output speed steady on the other hand, it is unexpected to prevent rotating speed, causes that vehicle jolts.When driving engine was suitable with motor M 2 rotating speeds, control setup was controlled first arrangement of clutch C1 branch and is opened, and the second arrangement of clutch C2 engages simultaneously, and drive system gets into paralleling model one.
When vehicle further acceleration again, when the speed of a motor vehicle was higher than the second preset vehicle speed V2, this moment, driving engine can not satisfy the condition that is operated in efficient district down at one grade; For making driving engine continue to operate in efficient district, need to improve driving engine output reduction of speed ratio, make driving engine with the output of slowing down than the sinking speed ratio; System gets into two: the first arrangement of clutch C1 of paralleling model and engages; The second arrangement of clutch C2, the 3rd arrangement of clutch C3 open, and the 4th arrangement of clutch C4 engages, and is as shown in Figure 6.
Control process is following: after the speed of a motor vehicle reached V2, to quickening wish, system controlled the 3rd arrangement of clutch C3 and opens according to the pedal depth detection; Starter motor M1 simultaneously, and control motor M 1, M2 rotating speed make motor M 1, M2 coupling rotating speed steady; When consistent, engage arrangement of clutch C1 to motor M 1 rotating speed, open arrangement of clutch C2 with driving engine or motor M 2 rotating speeds; Improve engine speed, reduce motor M 2 rotating speeds to 0, engage the 4th arrangement of clutch C4.
According to the operating mode needs, when vehicle load is quickened or is climbed, electrical motor M1 torque and motor torque coupling output.
When vehicle needed high-speed cruising, promptly the speed of a motor vehicle was higher than the 3rd preset vehicle speed V3, and the design condition of speed V3 is that the driving engine output of need not slowing down can be operated in high velocity, and make the driving engine direct drive can satisfy it and be operated in the fuel-economy district this moment.Each arrangement of clutch of control system control cooperates, and driving engine is directly exported, and make drive system get into driving engine and directly drive pattern: the first arrangement of clutch C1, the second arrangement of clutch C2 engage, and the 3rd arrangement of clutch C3, the 4th arrangement of clutch C4 branch are opened, and be as shown in Figure 7.When vehicle was in upward slope or accelerating mode, if the engine drive torque is not enough, M1, M2 were that system increases power as electrical motor and motor torque coupling; When vehicle is under the decelerating mode, motor M 1, M2 reclaim vehicle energy as electrical generator, are converted into power storage in closed-center system, in order to driving motor.
When vehicle is under the drag operating mode; Each arrangement of clutch of control system control cooperates, and makes drive system get into electric-only mode, and arrangement of clutch C1, C2, C3, C4 all separate; Motor controller controls first motor M 1, second motor M 2 are all done electrical generator and are used; Vehicle braking kinetic-energy is reclaimed, be converted into power storage in closed-center system, in order to driving motor next time.
Claims (6)
1. the control method of a hybrid electric drive system, wherein said drive system comprises driving engine (1), first motor (M1), second motor (M2), planetary gear members (2) and closed-center system (4); The gear ring of said planetary gear members (21) links to each other with said first motor (M1) rotor shaft; The sun wheel of said planetary gear members (22) links to each other with said second motor (M2) rotor shaft, and the pinion carrier of said planetary gear members (23) links to each other with this device clutch end; Said closed-center system (4) links to each other with said first motor (M1), second motor (M2); It is characterized in that:
Also be provided with first arrangement of clutch (C1) between said driving engine (1) and said first motor (M1) rotor shaft; Also be provided with second arrangement of clutch (C2) between the sun wheel of said driving engine (1) and said sun and planet gear; Also comprise the 3rd arrangement of clutch (C3), be arranged between the gear ring (21) and car body fixed parts of sun and planet gear; Also comprise the 4th arrangement of clutch (C4), be arranged between said second electrical motor (M1) rotor and the car body fixed parts;
Said method comprises:
According to energy storage situation, current vehicle speed situation and the Das Gaspedal degree of depth of closed-center system, control said drive system and be in electric-only mode, series-parallel connection pattern, paralleling model one, paralleling model two, driving engine direct drive pattern or braking energy take-back model.
2. the control method of hybrid electric drive system according to claim 1 is characterized in that, when vehicle during by static startup, judges the electric weight situation control hybrid power system Starting mode of closed-center system,
When closed-center system electric weight SOC >=SOC0, control said hybrid electric drive system and start with electric-only mode;
< during SOC0, start the engine is controlled said hybrid electric drive system and is started with the series-parallel connection pattern when containing device electric weight SOC.
3. the control method of hybrid electric drive system according to claim 2 is characterized in that, when said hybrid electric drive system starts with pure electronic mode, controls said hybrid electric drive system and uses first motor and the second motor driven in common.
4. the control method of hybrid electric drive system according to claim 2 is characterized in that, when said hybrid electric drive system starts with pure electronic mode, controls said hybrid electric drive system and uses first motor or second motor-driven.
5. the control method of hybrid electric drive system according to claim 1 is characterized in that, after the detection current vehicle speed and the Das Gaspedal degree of depth, judges whether vehicle changes current driving pattern.
6. the control method of hybrid electric drive system according to claim 1 is characterized in that, if < during SOC0, control system gets into the series-parallel connection pattern to closed-center system electric weight SOC.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106394550A (en) * | 2016-12-21 | 2017-02-15 | 厦门市福工动力技术有限公司 | Hybrid power control method and system of small passenger car |
| CN106545423A (en) * | 2016-10-31 | 2017-03-29 | 浙江吉利控股集团有限公司 | Engine control and device, hybrid vehicle |
| CN110549837A (en) * | 2018-05-30 | 2019-12-10 | 广州汽车集团股份有限公司 | Hybrid power drive system |
| CN112829739A (en) * | 2019-11-22 | 2021-05-25 | 广州汽车集团股份有限公司 | Method for controlling operating mode of hybrid drive device and hybrid system |
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