CN109774452A - The electric parallel-serial hybrid power system of bevel gear type oil - Google Patents
The electric parallel-serial hybrid power system of bevel gear type oil Download PDFInfo
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- CN109774452A CN109774452A CN201910160729.8A CN201910160729A CN109774452A CN 109774452 A CN109774452 A CN 109774452A CN 201910160729 A CN201910160729 A CN 201910160729A CN 109774452 A CN109774452 A CN 109774452A
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 18
- 230000008859 change Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 26
- 230000005611 electricity Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 239000000446 fuel Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses a kind of electric parallel-serial hybrid power systems of bevel gear type oil, the system mainly includes engine, two motors, two inverters, a power battery, one bidirectional clutch, two lock-up clutches, big bevel pinion make heel row and front-seat sun gear respectively, and planetary gear set includes three groups of bevel gears, planet carrier can connect engine, gear ring bevel gear output power by bidirectional clutch.The system is first is that can overcome the problems, such as that mixed connection formula hybrid vehicle needs big motor to provide enough power；Second is that using Bevel Gear Transmission scheme, bevel gear pair, which is dexterously utilized, relative to cylindrical gear pair can bear higher load, be driven more steady, noise is relatively low, and can change power transmission direction, it is arranged in power assembly in front of front axle, arrangement is got up more flexible；Third is that include that pure electric vehicle drives, motor assist drives, stepless shift function, it is higher using part universality, it is easy to accomplish scale industrialization.
Description
Technical field
The present invention relates to a kind of power systems arts of oil-electric vehicle, precisely, in particular to a kind of cone
The electric parallel-serial hybrid power system of gear type oil.
Background technique
In recent years, with the aggravation of environmental pollution and fossil energy crisis, exploitation is badly in need of in the sustainable development of automobile industry
Environmental-friendly, consuming little energy new energy motor is provided to make up.And the outstanding figure of new-energy automobile --- there are two tools
The discharge that the hybrid vehicle of power source had both improved conventional fuel oil car is poor, and it is continuous that the big disadvantage of noise also compensates for pure electric vehicle
The mileage that navigates is small, the deficiency of battery higher cost, while compared to fuel cell car, being mixed into other gases in hydrogen and easily sending out
Raw explosion, so the storage of hydrogen and guaranteeing that its safety will be a problem, the application of fuel cell car is restricted.Institute
From the point of view of the therefrom short stage, the hybrid vehicle as transiens in conjunction with engine driving, both can guarantee motor driven
The continual mileage of vehicle, but can saving fuel oil improve environment, hybrid power is still best in middle or short term from the point of view of at this stage
Solution has very good developing trend and future.
Hybrid vehicle is generally divided into tandem, parallel and three kinds of structure types of series parallel type.Series parallel hybrid power
Automobile combines the advantages of series and parallel type, is optimal hybrid vehicle organization plan.Series parallel hybrid power
One of key technology, that is, dynamic coupling system electronics buncher EVT (Electrical Variable therein
Transmission stepless shift function) may be implemented, maintain engine high-efficiency work, vehicle can be improved to greatest extent
Economy.
Current Series-Parallel HEV mainly uses planetary mechanism as power dividing device, typical structure type
THS system and general AHS system including Toyota.THS system uses single planetary row structure, belongs to input type power dividing mould
Formula, THS system this have the advantage that structure is simple, and control is easy, and electronic infinite variable speed (EVT) function may be implemented.But THS
The driving motor of system is connected with output gear ring, higher to its performance requirement, in order to meet good dynamic property, need to select function
The higher ranked motor of rate, this largely increases the degree of difficulty of integral vehicle cost and installation；Also, the system due to
Substantially cylindrical gear pair spatially belongs to parallel relation so must obtain between each transmission shaft, driveline arrangement
Get up to have certain limitation.
Summary of the invention
The electric parallel-serial hybrid power system of bevel gear type oil proposed by the present invention, first is that in order to overcome mixed connection formula hybrid power vapour
Vehicle needs big motor the problem of providing enough power, second is that being driven using bevel gear pair, to have roller gear that can not replace
Advantage such as carries high, changeable transmission direction etc.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization: the bevel gear type oil electricity is mixed
Join hybrid power system, including the system mainly includes an engine, two motors, two inverters, a power battery,
One bidirectional clutch, two lock-up clutches, big bevel pinion make heel row and front-seat sun gear, including three groups of cone teeth respectively
The planetary gear set and output gear of wheel.
Engine described in technical solution can pass through bidirectional clutch and planet carrier as a power source output terminal
Input terminal is connected；The both ends of two inverters pass through cable respectively and are connected with two motors and power battery, while two
It is also required to connect by cable between inverter, the stationary part of two motors is fixed on rack, and rotor portion passes through locking
The input shaft of the adjacent sun bevel gear of clutch is connected；
The sun gear at front row described in technical solution is connected on the input shaft of planet carrier by needle bearing, with axis
Matching for bearing outer-ring is combined into interference fit, is also interference fitted between bearing inner race and planet carrier input shaft, the axial direction of bearing
Positioning one end is positioned with the shaft shoulder, and one end is positioned with sleeve, and the cooperation between middle sleeve and planet carrier input shaft belongs to gap and matches
It closes, the front row sun gear and inner terminal planetary gear belong to normal meshing state；
The sun gear of heel row described in technical solution is that spline is connect with the connection relationship of heel row sun wheel shaft, here
Heel row sun wheel shaft can also regard the output shaft of motor two as, which belongs to center row star-wheel often engages shape
State；
Output gear described in technical solution is located next to the sun gear of heel row, is connected to by a deep groove ball bearing
In heel row sun wheel shaft, the outer ring of gear ring and deep groove ball bearing is interference fit, the inner ring and heel row sun gear of deep groove ball bearing
The cooperation of axis is also interference fit, and axially position one end of the deep groove ball bearing is positioned with the shaft shoulder, and one end is positioned with sleeve, wherein
Cooperation between sleeve and planet carrier input shaft belongs to clearance fit, which belongs to normal engage with outermost end planetary gear
State；
Planetary gear set structure described in technical solution is complex, it is made of four groups of the same bevel gear sets,
There are three the different bevel gear sets of size specification at these three bevel gears, most inner side bevel gear is as most for each bevel gear set
The front-seat sun gear of inner end planetary gear connection；Middle part bevel gear connects heel row sun gear as middle-end planetary gear；Outermost bores tooth
Wheel connects output gear as outermost end planetary gear；And these three planetary gears are connected by spline pair, the bushing with spline and one
The output shaft of diagonal contact ball bearing mating connection planet carrier, it should be noted that the output shaft of planet carrier and planet carrier it is defeated
Enter axis not and be integrated, specific fit system is that the output shaft tail end of planet carrier passes through external splines and is inserted into planet carrier input shaft band
Have in the slot of internal spline, is fastened with holding screw；
Engine output shaft described in technical solution, planet carrier input shaft, heel row sun wheel shaft and motor two it is defeated
The rotation conllinear of shaft, the plane and above-mentioned axis of rotation where the output shaft (4) of planet carrier are spatially vertical,
The axis of rotation of the identical planetary gear of 4 structures and the axis of rotation of carrier are parallel；
Each bevel gear described in technical solution is all packaged in special gear-box, the lubrication of each gear,
Bevel gear special lube can must be used using lubrication of splashing, lubricating oil.
Compared with prior art the beneficial effects of the present invention are:
1. the electric parallel-serial hybrid power system of bevel gear type oil of the present invention uses Bevel Gear Transmission scheme, dexterously
Bevel gear pair, which is utilized, can bear higher load relative to cylindrical gear pair.
2. the electric parallel-serial hybrid power system of bevel gear type oil of the present invention uses Bevel Gear Transmission scheme, dexterously
Bevel gear pair is utilized keeps transmission more steady relative to cylindrical gear pair, and noise is relatively low.
3. the electric parallel-serial hybrid power system of bevel gear type oil of the present invention, which uses Bevel Gear Transmission scheme, to be changed
Varying force transmission direction is arranged in power assembly in front of front axle, and arrangement is got up more flexible.
4. the electric parallel-serial hybrid power system of bevel gear type of the present invention oil has dexterously been used, clutch C1's is two-way
Associativity not only with locking planet carrier but also can keep the switching between each mode of vehicle more convenient in conjunction with engine, and
The use for reducing lock-up clutch and brake for other have configuration is that system is more compact, reduces cost.
5. the electric parallel-serial hybrid power system of bevel gear type of the present invention oil is since motor one is close to engine, so its
Operating ambient temperature is influenced to be risen by engine temperature, and then the working efficiency of motor one can be improved.
It has both included pure 6. electric-only mode may be implemented in the electric parallel-serial hybrid power system of bevel gear type oil of the present invention
Electric car also includes pure motor driving, can so eliminate the idling oil consumption of engine, improve the economy of vehicle.
7. electronics electrodeless variable-speed (EVT) mould may be implemented in the electric parallel-serial hybrid power system of bevel gear type oil of the present invention
Formula passes through the control to motor, it is ensured that engine operation equally also improves whole near optimal fuel consumption curve
The economy of vehicle.
Brake energy recovery mode may be implemented in the 8 electric parallel-serial hybrid power systems of bevel gear type oil of the present invention, leads to
The economy that electricity equally also can be improved vehicle is crossed, is particularly suitable for running urban highway traffic.
9. the electric parallel-serial hybrid power system of bevel gear type oil of the present invention can make when matching vehicle, suitably
Reduction engine power torque request, both can choose the engine of relatively small model, so, it is possible to reduce start
Exhaust emission brought by machine.
Detailed description of the invention:
Fig. 1 is to illustrate that the electric parallel-serial hybrid power system structure composition of bevel gear type oil of the present invention shows with working principle
Meaning schematic diagram；
Fig. 2 is to illustrate critical component in the electric parallel-serial hybrid power system structure of bevel gear type oil of the present invention, bores tooth
The structural assembly diagram of wheeled planetary gear set；
Fig. 3 is that driving force of the electric parallel-serial hybrid power system of bevel gear type oil of the present invention under electric-only mode passes
Pass route schematic diagram；
Fig. 4 is driving of the electric parallel-serial hybrid power system of bevel gear type oil of the present invention under Dual-motors Driving mode
Power transfer route schematic diagram；
Fig. 5 is the electric parallel-serial hybrid power system of bevel gear type oil of the present invention in the case where starting engine starting mode
Driving force transfer route schematic diagram；
Fig. 6 is the electric parallel-serial hybrid power system of bevel gear type oil of the present invention when EVT Mode motor one generates electricity
Driving force transfer route schematic diagram；
Fig. 7 is the electric parallel-serial hybrid power system of bevel gear type oil of the present invention in EVT Mode one power-assisted of motor
Driving force transfer route schematic diagram；
Fig. 8 is that the electric parallel-serial hybrid power system of bevel gear type oil of the present invention is passed in the driving force of braking mode
Pass route schematic diagram；
Fig. 9 is engine operation map figure of the present invention.
In figure: 1. engines, 2. bidirectional clutches, 3. inverters one, 4. motors one, 5. power batteries, 6. inverters two,
7. motor two, 8. planet carrier assemblies, 9. lock-up clutch C3,10. output gears, 11. main reducing gears, 12. right row's sun gears,
13. planetary gear one, 14. planetary gears two, 15. planetary gears three, 16. left bank sun gears, 17. lock-up clutch C2,18. wheels, 19.
Planet carrier input shaft, 20. needle bearings, 21. left bank sun gears, 22. inner terminal planetary gears, 23. sleeves one, 24. middle planetaries
Wheel, 25. sleeves two, 26. outermost end planetary gears, 27. sleeves three, 28. planet carrier output shafts, 29. angular contact ball bearings one, 30.
Bushing with external splines, 31. output gears, 32. right row's sun gears, 33. angular contact ball bearings two, 34. deep groove ball bearings, 35.
Axle sleeve four, 36. right row's sun gear input shafts, 37. retaining rings, 38. gaskets, 39. bolts, 40. circlips, 41. retaining rings, 42 thrust bearings
One, 43 thrust bearings two.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
The object of the present invention is to provide a kind of new oil electricity series-parallel hybrid electric systems, that is, provide a kind of bevel gear type oil
Electric parallel-serial hybrid power system controls engine operation to realize the electronic infinite variable speed function of series-parallel hybrid electric system
In best fuel-economy area, vehicle fuel economy is improved, realizes low emission, mixed connection formula hybrid vehicle is overcome to need big electricity
Machine is come the problem of providing enough power；And Bevel Gear Transmission scheme is used, bevel gear pair is dexterously utilized relative to circle
Stud wheel pair can bear higher load, and transmission is more steady, and noise is relatively low, and can change power transmission direction,
It is arranged in power assembly in front of front axle, arrangement is got up more flexible.Third is that its drive mode includes pure electric vehicle driving, electricity
Machine auxiliary drive, stepless shift function can meet various working condition requirements well.
Refering to fig. 1, the integral arrangement of the electric parallel-serial hybrid power system of bevel gear type oil of the present invention is mainly by starting
Machine (1), bidirectional clutch (2), inverter one (3), motor one (4), power battery (5), inverter two (6), motor two (7),
Planet carrier assembly (8), lock-up clutch C3 (9), output gear (10), main reducing gear (11), heel row sun gear (12), inner terminal
Planetary gear (13), middle-end planetary gear (14), outermost end planetary gear three (15), front-seat sun gear (16), lock-up clutch C2 (17),
The input and output shaft composition of wheel (18) and corresponding cable and each component.
Wherein, engine (1), No.1 motor (4), No. two motors (7), inverter (6) and power battery (5) can select
With existing procucts, specific type selecting need to combine producer's vehicle basic parameter and design requirement.
The mechanical structure of the invention configuration is introduced below:
Front row sun gear (16) of the present invention selects bevel gear, and the axis front end of the sun gear is by lock-up clutch C2
(17) come whether controlling its output axis connection with motor one, which can select electromagnetic servo, and wherein electric wire can
To be embedded in the output shaft of motor, axis here is hollow shaft, one considers the lightweight of assembly, and two consider cable
Arrangement and bearing, the lubrication of the objects such as bevel gear；
In terms of details can with referring to Fig.2, the front row sun gear (21) is located on planet carrier input shaft (19), but this two
A part will realize relatively independent rotation, it is contemplated that size, the factors such as arrangement consider that needle bearing (20) is selected to guarantee this
Function, as shown, the planet carrier input shaft (19) is that the left side is thin, the thick multi-diameter shaft in the right, when assembly, due to needle bearing
(20) inner ring and axis (19) is interference fit, so assembled, which can be considered, carries out oil bath heating to bearing inner race；Due to cone
Pretightning force when adjusting engagement is needed when gear engages, because if the axial position of bevel gear is improper, pretightning force is too small
Words, when transmission, can bring biggish vibration and noise, seriously affect the stationarity of transmission, thus the present invention consider using gasket into
The axially position left side that row adjusting, i.e. gasket are placed on the front row sun gear, increasing gasket pretightning force will increase, and reduce gasket then
Pretightning force will be reduced, and the number of gasket is depending on the circumstances, and the right end axially position about the front row sun gear (21) is then
As shown in Fig. 2, leaning on a thrust bearing two (43), the right side of thrust bearing is then leaned against on the shaft shoulder, which ensure that the cone tooth
Wheel can enter and leave axis (19) independently of planet carrier and independently rotate；
Heel row sun gear (33) of the present invention equally selects bevel gear, adjusts mode and the axially position side of pretightning force
Formula needs to be different from front-seat sun gear as front-seat sun gear: in size greatly than front-seat sun gear (21), because
It will be in normal meshing state with middle-end planetary gear (24), need to be different from front-seat sun gear: the heel row sun gear and the right side
The rotation of row sun gear input shaft (36) is in synchronous regime, guarantees that the technological means of this function is, by heel row sun gear (33)
Connected using involute spline between its input shaft (36), on the left of axially position fixed by retaining ring one (37), retaining ring
One (37) are fastened on heel row sun gear input shaft (36) by bolt (39) and gasket (38), are rotated therewith；
Its planet carrier of the present invention and the specific structure of planetary gear set can be referring to Fig.2, outermost end planets first
It takes turns (26), the axis of rotation of middle-end planetary gear (24), inner terminal planetary gear (22) should be perpendicular to above-mentioned front-seat sun gear (21)
With the axis of rotation of heel row sun gear (33), and these three planetary gears to demonstrate,prove its export rotation revolving speed it is identical, rotation status is answered
Independently of the output shaft (28) of planet carrier, solving the identical technological means of three planetary rotation wheel speeds is these three planetary gears
It is connected on the bushing (30) with external splines in such a way that involute spline connects, so passing through this four directions of bushing
Jie of part with, it is identical as the revolving speed of bushing to ensure that each planetary gear, to ensure that the rotation revolving speed of each planetary gear is identical,
It is noted herein that the torsional strength of the bushing with external splines must be enough；
Solving three planetary gear rotation status can be that this is wounded in the battle independently of the technological means of the output shaft (28) of planet carrier
The bushing (30) of key passes through a pair of forward mounted angular contact ball bearing (29) and (33) realization, the i.e. outer ring of angular contact ball bearing
It being interference fitted with bushing, output shaft (28) axle journal of inner ring and planet carrier is interference fitted, and the shaft shoulder is leaned in axially position one end of bearing,
The other end is by a thrust bearing positioning；The axially position mode of planetary gear is seen again, and thrust axis is leaned in the outside of outermost end planetary gear
Hold positioning, it is (25) and (23) respectively that inside is positioned by sleeve (25), and middle-end bevel gear two sides are positioned by abutment sleeve, most
The positioning method of inner end planetary gear is inboard thrust bearing, outside abutment sleeve (23)；
The positioning method of thrust bearing on planet carrier output shaft is that a side heads on planetary gear bevel gear, other side
Mode by circlip plus retaining ring positions；Whole vehicle state pattern analysis
One, start to walk state
1, pure electric vehicle starting mode
Refering to attached drawing 1 and attached drawing 3, when the demand power of vehicle is little, mentioned when the electricity of battery is abundant by vehicle mounted dynamic battery
For electric energy, two output torque of motor, engine and motor one are in close state, and entire car controller (VCU) is stepped on according to driver
Partitioned signal determines corresponding target torque, and clutch C1 is connected with rack at this time, and planet carrier input shaft is locked, at clutch C2
In off-state, preceding planet row and rear planet row directly break off power transmission, and clutch C3 is in lockup state, it is ensured that motor
Two output shaft is connected with the input shaft of heel row sun gear, and driving force transfer route drives whole energy of vehicle refering to attached drawing 3
Amount both is from power battery, then converts electrical energy into mechanical energy by motor two and export through retarder to wheel.
2, start engine starting mode
Refering to attached drawing 1 and attached drawing 5, when the demand power of vehicle is larger, the starting of engine is by electricity when the electricity of battery is lower
Machine one is realized, after starting engine, in order to guarantee that starting is steady, dynamic property is good, can be suitably electric with battery according to demand
Amount compensates torque output using MG2.Clutch C1 is connected with the output shaft of engine at this time, guarantee the output shaft of engine with
The input shaft of planet carrier is connected, and clutch C2 is in lockup state, and guarantee can be mechanical by motor one with some energy
Can be converted to electric energy, preceding planet row and rear planet row directly break off power transmission, the state of clutch C3 with the variation of load and
Larger, clutch C3 locking when battery capacity is not especially low of settled load, motor two are in power-assisted state, and driving force transmits road
Line drives most of energy of vehicle both to be from engine refering to attached drawing 5, and motor one is in generating state.
Two, forward travel state
1, single motor drives electric-only mode
2, which does not repeat as pure electric vehicle starting power transmission path.
3, Dual-motors Driving electric-only mode
Refering to attached drawing 1 and attached drawing 4, engine does not work, and motor MG1 and motor MG2 drive work simultaneously.Clutch at this time
C1 is connected with rack, guarantees that the input shaft of planet carrier is in locking state, and clutch C2 is in lockup state, guarantees motor one
Output shaft can be connected with front-seat sun gear, clutch C3 is in lockup state, driving force transfer route refering to attached drawing 4,
Whole energy of driving vehicle both are from power battery, then by two motors convert electrical energy into mechanical energy through retarder export to
Wheel.
4, EVT Mode
Refering to attached drawing 1, attached drawing 6 and attached drawing 7, output power a part of engine passes through planet row, defeated by mechanical path
Enter to retarder, and then export to wheel, the output power of another part, which is converted to electric energy by mechanical energy by motor one, to be passed through
Inverter is charged in power battery, and power battery exports energy again and is delivered to motor two by inverter, and motor two turns electric energy
Become mechanical energy and then drive vehicle, when power battery electricity redundancy and larger demand power, motor two can also participate in helping
Power；In such a mode.At this time clutch C1 is connected with the output shaft of engine, guarantees the output shaft and planet carrier of engine
Input shaft is connected, and clutch C2 is in lockup state, guarantees that the output shaft of motor one can be connected with front-seat sun gear, from
Clutch C3 is in lockup state, and motor two is in output power state, and driving force transfer route is refering to attached drawing 6 and attached drawing 7, driving
Vehicle both generally is from engine, and power battery plays intermediation, but when demand power is big, power battery can also be with volume
Outer electromotive power output.
In such a mode, due to engine and road-load decoupling, can make to send out by adjusting the rotational speed and torque of two motors
Motivation works near its optimal operation line, and concrete condition can be refering to Fig. 9.
Three, Brake energy recovery state
Refering to attached drawing 1 and attached drawing 8 when driver's brake pedal, if not emergency braking, i.e. provided by motor MG2
When brake force meet demand, brake force is then all provided by motor two, and the energy stores recycled are in power battery；If tight
Anxious braking when the maximum braking force that is, motor two can be provided is unable to meet demand, then is assisted providing, by motor by traditional braking
The energy of two brakings can be stored into power battery, and the energy that another part is braked by mechanical brake is consumed in the form of thermal energy
It is scattered in air.
Claims (3)
1. a kind of electric parallel-serial hybrid power system of bevel gear type oil, including engine (1), inverter (3), motor one (4), motor
Two (7), which is characterized in that make the front-seat sun including bidirectional clutch (2), lock-up clutch (9) and (17), bevel gear (16)
It takes turns, planetary gear is made by the bevel gear set that three groups of different size bevel gears (13), (14), (15) form, bevel gear (12) makees heel row
Sun gear, bevel gear (10) are used as gear ring；
The engine (1) can be connected by bidirectional clutch (2) with planet carrier (7) as a power source output terminal；
Inverter (3) one end is connected with motor one (4) with conducting wire, and the other end is connected with power battery, inverter (6) one end and motor two
(7) it is connected with conducting wire, the other end is connected with power battery；
Described motor one (4) stationary part is fixed on rack；Rotor portion passes through lock-up clutch (17) and bevel gear (16)
Shaft be connected；Described motor two (7) stationary part is fixed on rack；Rotor portion passes through lock-up clutch (9) and cone
The shaft of gear (12) is connected；
The bidirectional clutch is there are two connection status, and state one is that engine (1) is connected with planet carrier (8), and state two is
Planet carrier (8) is connected with rack；For lock-up clutch (17) there are two connection status, state one is that the output end of motor one (4) can
To combine with bevel gear (16), state two is to disconnect；For lock-up clutch (9) there are two connection status, state one is motor two (7)
Output end can be combined with bevel gear (12), state two be disconnect；
The bevel gear set includes three groups of bevel gears of different sizes, is bevel gear (13), bevel gear (14), bevel gear respectively
(15) it forms, three bevel gears are connected on a cannulated sleeve by spline, and cannulated sleeve is by bearing holder (housing, cover) after planet carrier
It holds on axis, guarantees the cannulated sleeve not only and can influence planet carrier with rotation but also not to drive its revolution；
The bevel gear (16) engages with the bevel gear (13) in bevel planet gear group, bevel gear (12) and bevel planet gear group
In bevel gear (14) engagement, bevel gear (10) connection output gear engaged with the bevel gear (15) in bevel planet gear group, separately
One end can be transmitted power on main reducing gear (11) by the connection of the driving form of gear pair and be driven by semiaxis
Wheel.
2. the electric parallel-serial hybrid power system of the oil of the bevel gear type according to claim one, characterized in that the bevel gear
(13), bevel gear (14), bevel gear (15) number be respectively all 3~4, in circumferencial direction etc. point arrangement.
3. the electric parallel-serial hybrid power system of bevel gear type oil described in accordance with the claim 1, characterized in that the two-way clutch
Device (2) can be stirred by shift fork, and root connects the input shaft of planet carrier with spline, and yoke bar can use hydraulic-driven；Locking from
Clutch (9) and (17) are electromagnetic clutch, and the power output shaft of two motors is hollow shaft, inside be connected with control lock-up clutch
Electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160729.8A CN109774452B (en) | 2019-03-04 | 2019-03-04 | Bevel gear type oil-electricity series-parallel hybrid power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160729.8A CN109774452B (en) | 2019-03-04 | 2019-03-04 | Bevel gear type oil-electricity series-parallel hybrid power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109774452A true CN109774452A (en) | 2019-05-21 |
| CN109774452B CN109774452B (en) | 2024-04-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112555365A (en) * | 2020-11-12 | 2021-03-26 | 中国人民解放军总参谋部第六十研究所 | Stepless speed change system and method for rotor wing of double-engine helicopter |
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