CN104742730B - A kind of stroke-increasing electric automobile Multiple modes coupling power drive system - Google Patents
A kind of stroke-increasing electric automobile Multiple modes coupling power drive system Download PDFInfo
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- CN104742730B CN104742730B CN201510159716.0A CN201510159716A CN104742730B CN 104742730 B CN104742730 B CN 104742730B CN 201510159716 A CN201510159716 A CN 201510159716A CN 104742730 B CN104742730 B CN 104742730B
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Abstract
The present invention relates to a kind of stroke-increasing electric automobile Multiple modes coupling power drive system, belong to new-energy automobile power assembly component technology field.The system includes engine, battery, inverter, No. three clutches, stand-by motor, No. two clutches, brake, planet carrier and in-line gears in conjunction, planetary gear, sun gear and central shaft in conjunction, clutch, main drive motor, gear ring, primary speed-down gear and in-line gears in conjunction, main reducing gear and differential assembly；By controlling whether the combination of a clutch and brake realizes the switching of height gear, if a clutch is combined, brake is separated the system, is operated in high tap position；If a clutch separation, is operated in low-grade location.A kind of stroke-increasing electric automobile Multiple modes coupling power drive system that the present invention is provided has 12 kinds of mode of operations, and pure electric Drive Mode is more, solves that motor peak power is too high, the low problem of underrun efficiency.
Description
Technical field
The invention belongs to new-energy automobile power assembly component technology field, it is related to a kind of stroke-increasing electric automobile multimode coupling
Close power drive system.
Background technology
Current stroke-increasing electric automobile mode of operation is on the low side, and motor peak power is too high, in underrun, effect
Rate is low, and pure electronic continual mileage is short.The Chinese patent of Application No. 201410008343.2 provides a kind of engine locking formula
Bi-motor single planetary row double reduction hybrid power system, system described in the patent include by engine, engine lock locking mechanism,
First motor, planetary gears, the second motor, double reduction mechanism.Under charge-depleting mode, engine lock locking mechanism is to hair
Motivation locking, the power of the first motor output is exported by sun gear line of input gear mechanism through gear ring, with the output of the second motor
Power carries out torque coupling rear-drive automobile traveling in double reduction mechanism；Increase under journey pattern, engine is not locked out, engine
The power of output through planet carrier shunt, a part drive the first electric power generation, another part through gear ring export and with the second motor
The power of output is in double reduction mechanism torque coupling rear-drive automobile traveling.The program is easily controllable, by engine locking
Mechanism is to engine locking whether so that system is operated in electric-only mode or increases journey pattern.But the program can not be by mechanism
Speed change so that the working range of the second motor is larger, causes motor working efficiency relatively low, and system axial size is larger, arrangement
It is difficult.
The content of the invention
In view of this, it is an object of the invention to provide a kind of stroke-increasing electric automobile Multiple modes coupling power drive system,
The pure electric Drive Mode of the system is more, solves that motor peak power is too high, the low problem of underrun efficiency.
To reach above-mentioned purpose, the present invention provides following technical scheme：
A kind of stroke-increasing electric automobile Multiple modes coupling power drive system, the system includes engine, battery, inversion
Device, No. three clutches, stand-by motor, No. two clutches, brake, planet carrier and in-line gears in conjunction, planetary gear, too
Sun wheel and central shaft in conjunction, clutch, main drive motor, gear ring, primary speed-down gear and in conjunction same
Shaft gear, main reducing gear and differential assembly；
The main drive motor is disposed coaxially on system both sides with stand-by motor；The output shaft and gear ring of main drive motor,
A number clutch driving plate is connected by spline and flange respectively；For the main drive motor is exported at any driving condition
Power be input to gear ring or in a clutch combination by power while passing to gear ring and sun gear and with sun gear integrally
Central shaft；By the inertia torque back transfer of vehicle to main drive motor under on-position；
A number clutch driven plate passes through spline connection with central shaft right-hand member；The sun gear and central shaft in conjunction
Left end is connected by spline with the active part of brake；Brake fixed part is connected by flange with transmission case；Braking
Device clutch plate is fixed on case of transmission；
No. two clutch plates of clutch are connected by spline with central shaft left end；No. two driving disc spacing pressings of clutch pass through spline
It is connected with stand-by motor armature right-hand member；The stand-by motor armature left end is connected by spline with the clutch plate of No. three clutches；
No. three driving disc spacing pressings of clutch are connected by spline with engine output shaft.
Further, the planet carrier is by in-line gears in conjunction and primary speed-down gear and in conjunction coaxial
Gear wheel external toothing in gear, for transmitting power；Primary speed-down gear and in-line gears and main reducing gear in conjunction
And differential assembly external toothing, for transmitting power.
Further, the system is by controlling whether the combination of a clutch and brake realizes cutting for height gear
Change, if a clutch is combined, brake is separated, and is operated in high tap position；If a clutch separation, is operated in low grade
Position.
Further, a clutch is bidirectional clutch.
The beneficial effects of the present invention are：A kind of stroke-increasing electric automobile Multiple modes coupling PWTN that the present invention is provided
System, can be by controlling whether the combination of a clutch and brake realizes the switching of height gear, if a clutch
Device is combined and brake is separated, then be operated in high tap position；If a clutch separation, is operated in low-grade location.The system
12 kinds of mode of operations are had, pure electric Drive Mode is more, solve that motor peak power is too high, underrun efficiency is low
Problem.
Brief description of the drawings
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
The detailed description of one step, wherein：
Fig. 1 is stroke-increasing electric automobile Multiple modes coupling power drive system of the present invention；
Fig. 2 is the energy flow schematic diagram of EV1 mode of operations；
Fig. 3 is the energy flow schematic diagram of EV2 mode of operations；
Fig. 4 is the energy flow schematic diagram of RE1 mode of operations；
Wherein, 1 is engine, and 2 is battery, and 3 is inverter, and 4 is No. three clutches, and 5 is stand-by motor, and 6 is No. two
Clutch, 7 is brake, and 801 is planet carrier, and 802 is the in-line gears with planet carrier one, and 9 is planetary gear, and 101 is the sun
Wheel, 102 is the central shaft with sun gear one, and 11 is a clutch, and 12 is main drive motor, and 13 is gear ring, and 14 is one-level
Reduction gearing and in-line gears in conjunction, 15 is main reducing gear and differential assembly.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
A kind of stroke-increasing electric automobile Multiple modes coupling power drive system that the present invention is provided is as shown in figure 1, the system bag
Include engine 1, battery 2,3, No. three clutches 4 of inverter, stand-by motor 5, No. two clutches 6, brake 7, planet carriers 801
And in-line gears 802 in conjunction, planetary gear 9, sun gear 101 and 102, clutch 11 of central shaft in conjunction,
Main drive motor 12, gear ring 13, primary speed-down gear and in-line gears 14, main reducing gear and differential assembly in conjunction
15。
Main drive motor 12 is disposed coaxially on system both sides, the output shaft and gear ring of main drive motor 12 with stand-by motor 5
13rd, a driving disc spacing pressing of clutch 11 is connected by spline and flange respectively, at any driving condition by the main drive motor
The power of output be input to gear ring or in a clutch combination by power while passing to gear ring and sun gear and and the sun
Take turns the central shaft of one；By the inertia torque back transfer of vehicle to main drive motor under on-position；Sun gear 101 and with
The left end of central shaft 102 of one be connected with the active part of brake 7 by spline, the fixed part of brake 7 passes through flange
It is connected with transmission case, a clutch plate of clutch 11 passes through spline with sun gear 101 and the right-hand member of central shaft 102 in conjunction
Connection, No. two clutch plates of clutch 6 are connected by spline with the left end of central shaft 102, and No. two driving disc spacing pressings of clutch 6 are by flower
Key is connected with the armature right-hand member of stand-by motor 5, and the armature left end of stand-by motor 5 is connected by spline with the clutch plate of No. three clutches 4,
No. three driving disc spacing pressings of clutch 4 are connected by spline with the output shaft of engine 1.
The in-line gears 802 of the one of planet carrier 801 and primary speed-down gear and the canine tooth of in-line gears 14 in conjunction
Wheel external toothing transmission power, outside primary speed-down gear and in-line gears 14 in conjunction and main reducing gear and differential assembly 15
Engagement transmission power.
Whether system realizes the switching of height gear by the combination of a number clutch of control and brake, if a clutch
Device is combined and brake is separated, then be operated in high tap position；If a clutch separation, is operated in low-grade location.
A number clutch is bidirectional clutch.
A kind of stroke-increasing electric automobile Multiple modes coupling power drive system that the present invention is provided has 12 kinds of mode of operations, respectively
Executing agency's working condition is shown in Table 1 under mode of operation, wherein, C1 is a clutch 11, and C2 is No. two clutches 6, C3
It is No. three clutches 4, B1 is brake 7；Details are as follows for specific pattern：
The mode of operation executive component subordinate list of table 1
(1) EV1 patterns：I.e. one grade drive pattern；The locking of brake 7,11, No. two clutches 6 of a clutch and No. three
Clutch 4 is separated., by the locking of brake 7, now, the fast ratio of planetary gears is for sun gear and central shaft 10 in conjunctionWherein, β is the ratio of the number of teeth with the sun gear number of teeth of the planetary gears gear ring 13.The speed of whole dynamical system
Than the product for planetary gears speed ratio, primary slow down speed ratio and speed ratio of main reducer.The power of the output of main drive motor 12
Through gear ring 13, planetary gear 9, planet carrier 801 and in-line gears 802 in conjunction, output to primary speed-down gear and with one of
The in-line gears 14 of body, and by primary speed-down gear and the input main reducing gear of in-line gears 14 and differential assembly in conjunction
15, realize the low-grade location electric-only mode that main drive motor 12 is operated alone.The rated speed of main drive motor 12 and specified torsion
Square is larger, and because one grade of speed reducing ratio of system is larger, therefore EV1 patterns are primarily adapted for use in turn round in low speed and drive operating mode, so can be with
So that main drive motor 12 is operated in its high efficient district.Under EV1 patterns, the energy flow path of system is as shown in Figure 2.
(2) EV2 patterns：I.e. two grades drive patterns；A number clutch 11 is combined, 6, No. three and of clutch 4 of No. two clutches
Brake 7 is separated.Now, than being one, the fast ratio of whole dynamical system slows down fast ratio and main the speed of planetary gears for primary
The product of decelerator speed ratio.A power part for the output of main drive motor 12 is through a clutch 11, central shaft 102, to the sun
Wheel 101 a, part arrives planetary gear 9 through gear ring 13, through in-line gears in conjunction behind the interflow of two parts power planet carrier 801
802nd, primary speed-down gear and in-line gears 14 in conjunction are input into main reducing gear and differential assembly 15, realize main driving
The high tap position electric-only mode that motor 12 is operated alone.System compares one grade small in two notch speeds, therefore EV2 patterns are primarily adapted for use in
Middle speed high is small to turn round the operating mode for driving, and main drive motor 12 is operated in its high efficient district.Under EV2 patterns, system
Energy flow path is as shown in Figure 3.
(3) EV1plus patterns：That is ECVT drive patterns, now the speed of system is than between minimum speed ratio and slowest ratio
The consecutive variations with the rotation speed change of stand-by motor 5；No. two clutches 6 are combined, 11, No. three clutches 4 of a clutch and braking
Device 7 is separated.The power of the output of main drive motor 12 is delivered to planetary gear 9 by gear ring 13；The power of the output of stand-by motor 5 is through two
Number clutch 6, central shaft 102 to sun gear 101, two parts power planet carrier 801 collaborate after through gear in conjunction
802nd, primary speed-down gear and in-line gears 14 in conjunction are input into main reducing gear and differential assembly 15, realize main driving
Motor 12 and the rotating speed of stand-by motor 5 coupling joint drive.Low speed is big in being applied to turns round the operating mode for driving.
(4) EV2plus patterns：I.e. pure two grades of reinforcing drive patterns of electronic stand-by motor；A number clutch 11 and No. two from
Clutch 6 is engaged, and No. three clutches 4 and brake 7 unclamp.A power part for the output of main drive motor 12 is through a clutch
11st, central shaft 102 arrives sun gear 101, and a part arrives planetary gear 9 through gear ring 13；The power of the output of stand-by motor 5 is through No. two clutches
Device 6, central shaft 102 are delivered to the sun 101, the power planet carrier 801 of two motors output collaborate after through in conjunction coaxial
Gear 802, primary speed-down gear and the input main reducing gear of in-line gears 14 and differential assembly 15 in conjunction, realize main drive
Two grades of electric-only modes that dynamic motor 12 and the torque coupling of stand-by motor 5 joint drive；Therefore EV2plus is primarily adapted for use in middle height
The operating mode that speed high pulling torque drives.
(5) ALL_D1 patterns：That is one grade of drive pattern of full power；No. two clutches 6 and No. three clutches 4 are engaged, No. one
Clutch 11 and brake 7 are separated.The power of the output of main drive motor 12 crosses gear ring 13, planetary gear 9；It is dynamic that engine 1 is exported
Power carries out torque coupling by the power that No. three clutches 4 and stand-by motor 5 are exported on the armature shaft of stand-by motor 5, then passes through
No. two clutches 6, central shafts 102 are delivered to sun gear 101；Two parts power planet carrier 801 is passed through and in conjunction after collaborating
In-line gears 802, primary speed-down gear and the input main reducing gear of in-line gears 14 and differential assembly 15 in conjunction, it is real
Existing engine 1, main drive motor 12 and the torque rotary speed of stand-by motor 5 coupling joint drive, to meet the work that low speed turns round by force driving
Condition.
(6) ALL_D2 patterns：That is two grades of drive patterns of full power；11, No. two clutches 6 of a number clutch and No. three clutches
Device 4 is engaged, and brake 7 is separated.The power of the output of engine 1 exists by No. three clutches 4, the power exported with stand-by motor 5
Torque coupling is carried out on the armature shaft of stand-by motor 5, then sun gear 101 is delivered to through No. two clutches 6, central shaft 102；With master
Motor 12 output power planet carrier 801 collaborate after pass through and in-line gears 802 in conjunction, primary speed-down gear and
The input main reducing gear of in-line gears 14 and differential assembly 15 in conjunction, meets engine 1, main drive motor 12 and auxiliary
The high speed that the full torque coupling of motor 5 joint drives turns round by force the operating mode of driving.
(7) RE1 patterns：That is one grade of drive pattern of extended-range；No. three clutches 4 and brake 7 are engaged, a clutch 11
Separated with No. two clutches 6.Now, sun gear and central shaft 10 in conjunction be by the locking of brake 7, planetary gears
Fast ratio isWherein, β is the ratio of the number of teeth with the sun gear number of teeth of the planetary gears gear ring 13.Whole dynamical system
The speed of system is than the product for planetary gears speed ratio, primary slow down speed ratio and speed ratio of main reducer.The power of the output of engine 1
By No. three clutches 4, drive stand-by motor 5 to be operated in Generator Status, be that battery 2 charges.Main drive motor 12 is exported
Power through gear ring 13, planetary gear 9, planet carrier 801 and in-line gears 802 in conjunction, output to primary speed-down gear and
In-line gears 14 in conjunction, and by primary speed-down gear and the input main reducing gear of in-line gears 14 and differential in conjunction
Device assembly 15, realizes one grade of increasing journey pattern that main drive motor 12 is operated alone.Under RE1 patterns, the energy flow path of system
As shown in Figure 4.
(8) RE2 patterns：That is two grades of drive patterns of extended-range；A number clutch 11 and No. three clutches 4 are engaged, brake 7
Separated with No. two clutches 6.The power of the output of engine 1 drives stand-by motor 5 to be operated in generator by No. three clutches 4
State, is that battery 2 charges.A power part for the output of main drive motor 12 arrives the sun through a clutch 11, central shaft 102
Wheel 101, through gear ring 13 to planetary gear 9, two parts power planet carrier 801 is passed through and coaxial tooth in conjunction a part after collaborating
Wheel 802, primary speed-down gear and in-line gears 14 in conjunction, and by primary speed-down gear and in-line gears in conjunction
14 input main reducing gears and differential assembly 15, realize two grades of increasing journey patterns that main drive motor 12 is operated alone.
(9) RG1 patterns：I.e. one grade small moment of torsion braking mode；The locking of brake 7,11, No. two clutches 6 of a clutch
Separated with No. three clutches 4, sun gear 101 and central shaft 102 in conjunction are by the locking of brake 7.The inertia torque of vehicle
Successively through main reducing gear and differential assembly 15, primary speed-down gear and in-line gears 14 and planet carrier 801 1 in conjunction
The in-line gears 802 of body, planet carrier 801 and gear ring 13 are transferred to main drive motor 12, and main drive motor 12 is independently operated on hair
Electricity condition, realizes the regenerative braking mode of operation of main drive motor 12.Meet the operating mode of the weak braking of low speed, improve main driving
The operating efficiency of motor 12 and the economy of vehicle.
(10) RG2 patterns：I.e. two grades small moment of torsion braking modes；A number clutch 11 is combined, No. two clutches 6, three from
Clutch 4 and brake 7 are separated.The inertia torque of vehicle by main reducing gear and differential assembly 15, primary speed-down gear and with
One in-line gears 14 to the one of planet carrier 801 in-line gears 802, after planet carrier 801 is shunted, then respectively through gear ring
13 and 102, clutch 11 of sun gear 101 and central shaft be transferred to main drive motor 12, realize 12 2 grades of main drive motor
Under regenerative braking.Improve the operating efficiency and the economy of vehicle of vehicle main drive motor 12 under the weak damped condition of high speed
Property.
(11) RG1plus patterns：That is ECVT braking modes, now system speed than between minimum speed ratio and slowest ratio with
The rotation speed change of stand-by motor 5 and consecutive variations；No. two clutches 6 are combined, 11, No. three clutches 4 of a clutch and brake 7
Separate.The inertia torque of vehicle is by main reducing gear and differential assembly 15, primary speed-down gear and coaxial tooth in conjunction
The in-line gears 802 of wheel 14 and the one of planet carrier 801, after planet carrier 801 is shunted, a part branches to main drive by gear ring 13
Dynamic motor 12, another part branches to stand-by motor 5 by sun gear 101,10, No. two clutches 6 of central shaft, drives two motors
Generate electricity, realize the mode of operation of main drive motor 12 and the braking of the combining and regenerating of stand-by motor 5.
(12) RG2plus patterns：I.e. two grades high pulling torque braking modes；A number clutch 11 and No. two clutches 6 are engaged, and three
Number clutch 4 and brake 7 unclamp.The inertia torque of vehicle is by main reducing gear and differential assembly 15, primary speed-down gear
And in-line gears 14 and the in-line gears 802 of the one of planet carrier 801 in conjunction, after planet carrier 801 is shunted, a part
Main drive motor 12 is transferred to by gear ring 13, another part is transmitted by No. two clutches 6 respectively through sun gear 101, central shaft 102
Main drive motor 12 is transferred to stand-by motor 5 and a clutch 11, main drive motor 12 and auxiliary electricity under two grades is realized
The dynamic regenerative braking mode of operation of the pressure of the torque coupling of machine 5.When this pattern is reclaimed suitable for vehicle braking energy, car high in satisfaction
Speed forces dynamic operating mode.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (4)
1. a kind of stroke-increasing electric automobile Multiple modes coupling power drive system, it is characterised in that：The system includes engine, electric power storage
Pond, inverter, No. three clutches, stand-by motor, No. two clutches, brake, planet carrier and in-line gears in conjunction, OK
Star-wheel, sun gear and central shaft in conjunction, clutch, main drive motor, gear ring, primary speed-down gear and with one of
The in-line gears of body, main reducing gear and differential assembly；
The main drive motor is disposed coaxially on system both sides with stand-by motor；The output shaft of main drive motor and gear ring, No. one
Clutch driving plate is connected by spline and flange respectively, for the power at any driving condition exporting the main drive motor
Be input to gear ring or in a clutch combination by power at the same pass to gear ring and sun gear and with sun gear one in
Heart axle；By the inertia torque back transfer of vehicle to main drive motor under on-position；
A number clutch driven plate passes through spline connection with central shaft right-hand member；Central shaft left end with sun gear one passes through spline
It is connected with the active part of brake；Brake fixed part is connected by flange with transmission case；Brake clutch plate is fixed
On case of transmission；
No. two clutch plates of clutch are connected by spline with central shaft left end；No. two driving disc spacing pressings of clutch by spline with it is auxiliary
Armature right-hand member is helped to be connected；The stand-by motor armature left end is connected by spline with the clutch plate of No. three clutches；No. three
The driving disc spacing pressing of clutch is connected by spline with engine output shaft.
2. a kind of stroke-increasing electric automobile Multiple modes coupling power drive system according to claim 1, it is characterised in that：
The planet carrier is by the gear wheel in in-line gears in conjunction and primary speed-down gear and in-line gears in conjunction
External toothing, for transmitting power；A gear in primary speed-down gear and in-line gears in conjunction and with planet carrier one
Another gear in the in-line gears external toothing of body, primary speed-down gear and in-line gears in conjunction and main reducing gear and
Differential assembly external toothing.
3. a kind of stroke-increasing electric automobile Multiple modes coupling power drive system according to claim 1, it is characterised in that：
Whether the system realizes the switching of height gear by the combination of a number clutch of control and brake, if a clutch knot
Close and brake separation, be then operated in high tap position；If a clutch separation, is operated in low-grade location.
4. a kind of stroke-increasing electric automobile Multiple modes coupling power drive system according to claim 1, it is characterised in that：
A number clutch is bidirectional clutch.
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| CN201510159716.0A CN104742730B (en) | 2015-04-03 | 2015-04-03 | A kind of stroke-increasing electric automobile Multiple modes coupling power drive system |
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| CN201510159716.0A CN104742730B (en) | 2015-04-03 | 2015-04-03 | A kind of stroke-increasing electric automobile Multiple modes coupling power drive system |
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| CN104742730B true CN104742730B (en) | 2017-05-31 |
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