CN106427547A - Vehicle hybrid power drive system and hybrid vehicle - Google Patents
Vehicle hybrid power drive system and hybrid vehicle Download PDFInfo
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- CN106427547A CN106427547A CN201510481427.2A CN201510481427A CN106427547A CN 106427547 A CN106427547 A CN 106427547A CN 201510481427 A CN201510481427 A CN 201510481427A CN 106427547 A CN106427547 A CN 106427547A
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Abstract
The invention discloses a vehicle hybrid power drive system. The vehicle hybrid power drive system comprises an engine, a motor, a storage battery, a clutch system, a braking system, a front row planetary gear mechanism, a rear row planetary gear mechanism and a drive shaft; a front row planet carrier is fixedly connected with a rear row sun gear; an output shaft of the engine is fixedly connected with a rear row planet carrier; a differential gear reducer is arranged between the rear row planetary gear mechanism and the drive shaft; a rear row gear ring is connected with the drive shaft through the differential gear reducer; the storage battery is connected with the motor; the motor is connected with a front row gear ring through a first clutch; the motor is connected with a front row sun gear through a second clutch; the motor is connected with the output shaft of the engine through a third clutch; and the braking system brakes components in the front row planetary gear mechanism and the rear row planetary gear mechanism. According to the vehicle hybrid power drive system disclosed by the invention, three clutches can be adopted at the same time, so that power switching in different working modes can be realized, the characteristics of dual clutches are taken, and the problem of insufficient interface of the dual clutches is solved.
Description
Technical field
The present invention relates to the technical field of hybrid vehicle, especially a kind of vehicle hybrid drivetrain
System and the motor vehicle driven by mixed power with this drive system.
Background technology
With the development of vehicle technology, people propose increasing requirement, mixing to the performance of vehicle
Power vehicle not only has good dynamic property, maneuverability, comfortableness and safety because of it, and can also
Enough reduce oil consumption and discharge, more and more welcomed by the people.
Hybrid vehicle refers to be provided the car of power by two or more driver elements that can operate simultaneously
, it independently or jointly provides power according to vehicle actual travel condition selecting different driving unit.Press
According to the classification of power transmission route, hybrid vehicle can be divided into tandem, parallel and series parallel type three species
Type, wherein Series-Parallel HEV have preferable performance in terms of oil consumption and discharge.Hybrid power vapour
The different of the power coupling mode that car exports according to power source can be divided into torque coupling formula, rotating speed coupling again
Formula, pull strength manifold type and hybrid coupled formula, hybrid coupled formula is due to having torque coupling formula and rotating speed coupling concurrently
Box-like advantage and in fuel economy, dynamic property and the mode of operation switching aspect such as ride comfort have very big
Advantage.In the prior art, Series-Parallel HEV generally requires by planetary gear or subtractive speed
Device, to realize rotating speed coupling, is brought by gear, magnetic field or chain and realizes torque coupling.When series parallel type mixing
When power coupling mechanism adopts epicyclic train scheme, need to arrange at least two motors, and by multiple
Single clutch just enables the coupling between multi power source.
Disclose a kind of hybrid drive in the patent of Publication No. CN103786564A,
This device includes electromotor, bi-motor, compound planetary gearing, clutch and brake, and it is front-seat
Sun gear is provided with brake, and front-seat planet carrier is connected with engine power output, and front planet carrier is also logical
Cross first clutch to be connected with the first electric machine main shaft, the first electric machine main shaft is connected with front-seat gear ring, front toothrow
Circle is connected with rear planet carrier by second clutch, and rear sun gear is connected with the second electric machine main shaft, by rear
Gear ring is connected with driving means Power Available Shaft, thus driving vehicle to travel.It is double that design is passed through in this invention
Planetary gears and bi-motor, achievable rotating speed and torque coupling solve parallel-axis type gear drive machine
Structure first and second motor can not be operated in the problem of high efficient district simultaneously, solves single planetary row mechanism in vehicle
Run at high speed under pattern, the problem of generator operation inefficiency.But bi-motor mixed connection formula hybrid power system
System complex structure, parts are many, and axial dimension is long, increase manufacture and arrangement difficulty so that cost
Improve.
A kind of three clutch speed changers of electric motor car are disclosed in the patent of Publication No. CN 102678871A
Device and electric vehicle, are connected with a shelves gear, intermediate gear and third gear respectively using three clutches,
Gear controller automatically controls input shaft and passes through the different gears of different clutches accesses, can take into account max. speed
And max. climb slope, enable power shifting, have that shift time is short, shift quality is good, compact conformation
Etc. there being advantage, but this invention only one of which power input interface cannot realize the power coupling in different dynamic source,
Can be only applied to pure electric vehicle or conventional truck.
In existing hybrid electric drive system, although simple using single electric machine structure parts,
Rotating speed coupling and torque coupling function cannot be had concurrently；And using many electric machine structures although being capable of multiple
The conversion of mode of operation, but the arrangement of hybrid electric drive system and control will become complicated, many in addition
Mostly by controlling separation or the combination of multiple single clutch and brake in electric machine mixed power drive system
To realize different mode of operations, multiple single clutch will make fluid pressure line become complicated and can not pass through
Forked working is slower to realize the unbroken switching of power, response speed, and pattern switching ride comfort is poor, shadow
Ring mode of operation switching quality.
Content of the invention
It is an object of the invention to provide a kind of vehicle hybrid power drive system and motor vehicle driven by mixed power, should
System structure is simple, using single motor and three clutches of arranging in pairs or groups can make vehicle in multiple-working mode
Between switch over, and when mode of operation switches, fast response time, mode of operation switching has preferably
Ride comfort.
The present invention provide a kind of vehicle hybrid power drive system, including electromotor, motor, accumulator,
Clutch system, brakes, front-seat planetary gears, heel row planetary gears and drive shaft, institute
State front-seat planetary gears and include front-seat sun gear, front-seat planetary gear, front-seat gear ring and front-seat planet carrier,
Described heel row planetary gears includes heel row sun gear, heel row planetary gear, rear ring gear and rear rows of planetary
Frame, described front row planet carrier is fixedly linked with described heel row sun gear, the output shaft of described electromotor and institute
State heel row planet carrier to be fixedly linked, it is provided with subtractive between described heel row planetary gears and described drive shaft
Fast device, described rear ring gear is connected with described drive shaft by described difference speed reducer, and described drive shaft will be moved
Power is transferred to wheel, and described accumulator is connected with described motor, described clutch system include first clutch,
Second clutch and the 3rd clutch, described motor is by described first clutch and described front row gear ring phase
Even, described motor is connected with described front row sun gear by described second clutch, and described motor passes through institute
State the 3rd clutch to be connected with the output shaft of described electromotor, described brakes is to described front rows of planetary tooth
Part in wheel mechanism and described heel row planetary gears is braked.
Further, described brakes includes the first brake, second brake and the 3rd brake,
Described first brake is connected with described front row sun gear and is used for described in locking front row sun gear, and described the
Two brakes are connected with described front row gear ring and be used for described in locking front row gear ring, described 3rd brake and
Described heel row planet carrier is connected and is used for heel row planet carrier described in locking.
Further, described electromotor, described motor, described first clutch, described second clutch,
Described 3rd clutch, described front row planetary gears and described heel row planetary gears are coaxially disposed.
Further, also to include vehicle hybrid power drive system total for described vehicle hybrid power drive system
Controller, clutch controller and brake monitor, described master controller controls described electromotor and described electricity
The start and stop of machine, described clutch controller and described brake monitor control described clutch system respectively
And the combination of described brakes with separate.
Further, described vehicle hybrid power drive system has electric-only mode, described pure electronic
Under pattern, only travelled by described motor-driven vehicle, vehicle has the first working condition and the second work
Two kinds of working conditions of state；When being in described first working condition, described second clutch with described before
Row's sun gear combines, and, by described front row gear ring locking, described 3rd brake is by institute for described second brake
State heel row planet carrier locking；When being in described second working condition, described first clutch with described before
Toothrow circle combines, and by front-seat sun gear locking, described 3rd brake is by rear seniority among brothers and sisters for described first brake
Carrier locking.
Further, described vehicle hybrid power drive system has engine drive mode, at described
Under motivation drive pattern, described three clutches all separate, and described engine start and described motor stop,
By front-seat sun gear locking, described second brake is by front-seat gear ring locking for described first brake.
Further, described vehicle hybrid power drive system has moment coupling combination drive pattern,
Under described moment coupling combination drive pattern, described 3rd clutch is combined with described electromotor, described
Motivation is all started with described motor, described first brake by described front row sun gear locking, described second
Brake is by front-seat gear ring locking.
Further, described vehicle hybrid power drive system has infinitely variable speeds combination drive pattern,
Under described infinitely variable speeds combination drive pattern, described electromotor is all started with described motor, and vehicle has
Three working conditions and two kinds of working conditions of the 4th working condition；When being in described three working condition, institute
State first clutch to be combined with described front row gear ring, described first brake is by described front-seat sun gear locking；
When being in described four working condition, described second clutch is combined with described front row sun gear, described
Second brake is by front-seat gear ring locking.
Further, described vehicle hybrid power drive system has moment coupling combination drive charge mode,
Under described moment coupling combination drive charge mode, described 3rd clutch is combined with described electromotor,
Described front row gear ring is locked by described first brake by described front row sun gear locking, described second brake
Only, described motor work in Generator Status and described motor-powered vehicle can be travelled unnecessary
Kinetic energy is converted into electrical energy for storage in described accumulator.
Present invention also offers a kind of motor vehicle driven by mixed power, described motor vehicle driven by mixed power includes the present invention and is carried
For any one vehicle hybrid power drive system.
In sum, the hybrid electric drive system that the present invention provides passes through Reasonable Arrangement dynamic coupling system,
By three clutches and compound planetary gearing, cleverly the power coupling of electromotor and motor one
Rise, using single motor and by controlling three clutches and brakeage, you can realize hybrid power
The rotating speed of drive system and the coupling of torque, reduce the complexity of system, realize multiple-working mode,
And arrange simple, compact conformation, and lightweight, the economy of vehicle fuel is provided, reduces discharge, simultaneously
The ride comfort and the response that are capable of mode of operation switching be optimum, it is to avoid leads to using bi-motor arrange
The complicated, problem of high cost, realizes the powershift of different working modes simultaneously using three clutches, and
There is double clutch and the deficiency of double clutch interface can be made up well.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention
Art means, and being practiced according to the content of description, and in order to allow the above and other of the present invention
Objects, features and advantages can become apparent, and below especially exemplified by preferred embodiment, and coordinates accompanying drawing, in detail
Carefully it is described as follows.
Brief description
The structural representation of the vehicle hybrid power drive system that Fig. 1 provides for the present invention.
Specific embodiment
For further illustrating that the present invention is to reach technological means and effect that predetermined goal of the invention is taken,
Below in conjunction with accompanying drawing and preferred embodiment, it is as follows that the present invention is described in detail.
The structural representation of the vehicle hybrid power drive system that Fig. 1 provides for the present invention, as shown in figure 1,
The present invention provide vehicle hybrid power drive system be connected with wheel, this drive system include electromotor 10,
Motor 20, accumulator 30, clutch system 40, brakes 50, front-seat planetary gears 60, after
Rows of planetary gear mechanism 70 and drive shaft 80.
Front-seat planetary gears 60 includes front-seat sun gear 61, front-seat planetary gear 62, front-seat gear ring 63
And front-seat planet carrier 64, heel row planetary gears 70 include heel row sun gear 71, heel row planetary gear 72,
Rear ring gear 73 and heel row planet carrier 74.Front-seat planet carrier 64 and heel row sun gear 71 are fixedly linked,
The output shaft of electromotor 10 is fixedly linked with heel row planet carrier 74,.Heel row planetary gears 70 and drive
Be provided with difference speed reducer 81 between moving axis 80, rear ring gear 73 pass through train of reduction gears (figure do not mark) with poor
Decelerator 81 is connected, and difference speed reducer 81 is connected with drive shaft 80, and power is transferred to car by drive shaft 80
Wheel 90.
Clutch system 40 includes first clutch 41, second clutch 42 and the 3rd clutch 43, motor
20 are connected with front-seat gear ring 63 by first clutch 41, motor 20 pass through second clutch 42 with front
Row's sun gear 61 is connected, and motor 20 is connected with the output shaft of electromotor 10 by the 3rd clutch 43.
Brakes 50 is to the part system in front-seat planetary gears 60 and heel row planetary gears 70
Dynamic, to change the relative motion relation of all parts.The present invention passes through clutch system 40 controlled motor 20
Combination with front-seat gear ring 63, front-seat sun gear 61 and electromotor 10 or separate, and pass through braking system
System 50 brakings to part in front-seat planetary gears 60 and heel row planetary gears 70, using list
Individual motor 20 can complete hybrid electric drive system and switch between multiple mode of operations.
Specifically, electromotor 10, motor 20, clutch system 40, front-seat planetary gears 60, after
Rows of planetary gear mechanism 70 is coaxially disposed, and electromotor 10 and the power of motor 20 can be facilitated to transmit and coupling
Close.Brakes 50 includes the first brake 51, second brake 52 and the 3rd brake 53, and first
Brake 51 is connected with front-seat sun gear 61, in order to locking front row sun gear 61；Second brake 52
It is connected with front-seat gear ring 63, in order to locking front row gear ring 63；3rd brake 53 and heel row planet carrier 74
It is connected, in order to locking heel row planet carrier 74.
For the ease of being controlled to the vehicle hybrid power drive system that the present invention provides, the present invention provides
Vehicle hybrid power drive system also include hybrid electric drive system master controller (not shown), clutch
Controller (not shown) and brake monitor (not shown), hybrid electric drive system master controller can
Control electromotor 10, the start and stop of motor 20, clutch controller, brake monitor can be distinguished
The startup of control clutch system 40 and brakes 50 and closing.
In the present embodiment, electromotor 10 can be gasoline or Diesel engine, and motor 20 can be outer
The permagnetic synchronous motor of permanent magnet in winding, clutch 41,42,43 can be cartridge type multi-disc clutch
Device, brake 51,52,53 can be spot-type disc brake, hydraulic frictional piece-type brake or electromagnetic system
Dynamic device, forward and backward rows of planetary gear mechanism 60,70 can be high intensity, low noise, the tooth of suitable correction of the flank shape
Wheel, difference speed reducer 81 can be open type differential speed reducer, accumulator 30 can be high power density,
High-quality ratio, charge efficiency are high, long-life lithium ion battery, and drive shaft 80 can be high efficiency, low
The constant velocity driving shaft of vibration, wheel 90 can be the good high-performance tire of low rolling resistance, low wind-dryness, handling stability.
The vehicle hybrid power drive system that the present invention provides can make power-driven system have pure electronic mould
Formula, engine drive mode, moment coupling combination drive pattern, infinitely variable speeds combination drive pattern, system
Energy take-back model, engine start pattern, moment coupling combination drive charge mode and parking are charged
The multiple-working modes such as pattern, the hybrid electric drive system below present invention being provided is in each Working mould
Working method in formula is described.
Electric-only mode：When vehicle is travelled with relatively low speed or vehicle launch, low cruise etc. make electromotor
10 when working in middle-low load, in order to avoid electromotor 10 is operated in inefficient area, now can select
Electric-only mode, only drives vehicle to travel by motor 20, in such a mode, vehicle has the first work
State and two kinds of working conditions of the second working condition.
When hybrid electric drive system is in the first working condition, second clutch 42 and front-seat sun gear
61 combinations, the power of motor 20 is transferred to front-seat sun gear 61, second brake 52 and front-seat gear ring
63 combinations, and by front-seat gear ring 63 locking, the 3rd brake 53 is combined with heel row planet carrier 74, and
By heel row planet carrier 74 locking.Now, the power of vehicle passes through front-seat sun gear 61, front by motor 20
Power is transferred to heel row sun gear 71, heel row sun gear 71 by seniority among brothers and sisters star-wheel 62 and front-seat planet carrier 64
Power is transferred to by rear ring gear 73 by heel row planetary gear 72, rear ring gear 73 passes through difference speed reducer 81
Power after subtractive speed is transferred to drive shaft 80, to drive vehicle to travel.
Assume in the present invention, the characteristic parameter of front-seat planetary gears 60 is K1(i.e. front-seat gear ring
63 number of teeth is K with the gear ratio of front-seat sun gear 611), formula is had according to the kinetic characteristic of planet row：
nS1+K1nR1-(1+K1)nP1=0,
Wherein：nS1For the rotating speed of front-seat sun gear 61, nR1For the rotating speed of front-seat gear ring 63, nP1For front
The rotating speed of seniority among brothers and sisters carrier 64.
In the same manner it is assumed that the characteristic parameter of heel row planetary gears 70 is K2(the i.e. tooth of rear ring gear 73
Number is K with the gear ratio of heel row sun gear 712), formula is had according to the kinetic characteristic of planet row：
nS2+K2nR2-(1+K2)nP2=0
Wherein：nS2For the rotating speed of heel row sun gear 71, nR2For the rotating speed of rear ring gear 73, nP2For rear
The rotating speed of seniority among brothers and sisters carrier 74.
In the first working condition, the rotating speed due to front-seat gear ring 63 and heel row planet carrier 74 is zero, and
Front-seat planet carrier 64 is identical with the rotating speed of heel row sun gear 71, therefore in the first operative state, mixing is dynamic
The gear ratio of power-driven system is：(1+K1)K2.
When hybrid electric drive system is in the second working condition, first clutch 41 and front-seat gear ring
63 combinations, the power of motor 20 is transferred to front-seat gear ring 63, the first brake 51 and front-seat sun gear
61 combinations, and by front-seat sun gear 61 locking, the 3rd brake 53 is combined with heel row planet carrier 74,
And by heel row planet carrier 74 locking, now, the power of drive system by motor 20 pass through front-seat gear ring 63,
Front-seat planetary gear 62 and front-seat planet carrier 64 are transferred to heel row sun gear 71, and heel row sun gear 71 passes through
Power is transferred to rear ring gear 73 by heel row planetary gear 72, and rear ring gear 73 passes through difference speed reducer 81 will
Power after subtractive speed is transferred to drive shaft 80, to drive vehicle to travel.Now, hybrid drive train
System gear ratio be
From the foregoing, by the action controlling clutch system 40 and brakes 50, hybrid power drives
Dynamic system can have different gear ratios or gear under electric-only mode, can avoid relying on merely tune
Power, this max. speed just having taken into account vehicle and maximum to adjust vehicle for the working speed of section motor 20
Climbable gradient, reduces the requirement to motor 20 capacity.
Engine drive mode：When electromotor 10 works in high efficient district, electromotor 10 is operated alone car
Travel, now hybrid electric drive system can select engine drive mode, in such a mode, three
Clutch 41,42,43 all separates, and electromotor 10 starts and motor 20 stops, the first brake 51
Be combined with front-seat sun gear 61, and by front-seat sun gear 61 locking, second brake 52 and front-seat gear ring
63 combinations, and by front-seat gear ring 63 locking, electromotor 10 by power pass through heel row planet carrier 74 and after
Seniority among brothers and sisters star-wheel 72 is transferred to rear ring gear 73, and rear ring gear 73 is after difference speed reducer 81 is by subtractive speed
Power be transferred to drive shaft 80, now drive system ratio is
Moment coupling combination drive pattern：When hybrid electric drive system is in moment coupling combined drive dynamic model
During formula, electromotor 10 works along optimal operation line, and not enough power can be provided by motor 20, this
When the 3rd clutch 43 be combined with electromotor 10, electromotor 10 is all started with motor 20, first braking
Device 51 is combined with front-seat sun gear 61, and by front-seat sun gear 61 locking, second brake 52 with front
Toothrow circle 63 combines, and by front-seat gear ring 63 locking.Now, the power of motor 20 and electromotor 10
It is transferred to heel row through heel row planet carrier 74 and heel row planetary gear 72 after coupling by the 3rd clutch 43
Gear ring 73, the power after subtractive speed is transferred to drive shaft 80 by difference speed reducer 81 by rear ring gear 73,
Now, motor 20 is equivalent to ISG (Integrated Starter and Generator, starting-generating all-in-one),
Drive system ratio is in such a modeThe torque of difference speed reducer 81 input is(wherein：TeFor the torque of electromotor 10, TmFor the torque of motor 20, Td
Torque for difference speed reducer 81 input).
Infinitely variable speeds combination drive pattern：When the speed of vehicle changes greatly, now hybrid power drives
System can select infinitely variable speeds combination drive pattern, and electromotor 10 is all started with motor 20, by adjusting
Section motor 20 follows speed to stablize electromotor 10 rotating speed.Under infinitely variable speeds combination drive pattern, mix
Close power-driven system and there are the 3rd working condition and two kinds of working conditions of the 4th working condition.
When hybrid electric drive system is in three working conditions, first clutch 41 and front-seat gear ring
63 combinations, the power of motor 20 is transferred to front-seat gear ring 63, the first brake 51 and front-seat sun gear
61 combinations, and by front-seat sun gear 61 locking, the power of motor 20 passes sequentially through front-seat gear ring 63, front
Seniority among brothers and sisters star-wheel 62, front-seat planet carrier 64 are transferred to heel row sun gear 71, after the power of electromotor 10 passes through
Seniority among brothers and sisters carrier 74 is transferred to heel row planetary gear 72, and heel row planetary gears 70 passes through heel row sun gear 71
And heel row planetary gear 72 motor 20 is coupled with the rotating speed of electromotor 10 after be transferred to rear ring gear 73,
Power after subtractive speed is transferred to drive shaft 80 by difference speed reducer 81 by rear ring gear 73, in this kind of shape
Under state, rotation speed relation has(wherein noFor the rotating speed after coupling, nmFor motor 20
Rotating speed, neRotating speed for electromotor 10).
When hybrid electric drive system is in four working conditions, second clutch 42 and front-seat sun gear
61 combinations, the power of motor 20 is transferred to front-seat sun gear 61, second brake 52 and front-seat gear ring
63 combinations, and by front-seat gear ring 63 locking, now the power of motor 20 pass through front-seat sun gear 61, front
Seniority among brothers and sisters star-wheel 62, front-seat planet carrier 64 are transferred to heel row sun gear 71, after the power of electromotor 10 passes through
Seniority among brothers and sisters carrier 74 is transferred to heel row planetary gear 72, and heel row planetary gears 70 passes through heel row sun gear 71
And heel row planetary gear 72 motor 20 is coupled with the rotating speed of electromotor 10 after be transferred to rear ring gear 73,
Power after subtractive speed is transferred to drive shaft 80 by difference speed reducer 81 by rear ring gear 73, in this kind of shape
Under state, rotation speed relation has(wherein noFor the rotating speed after coupling, nmFor motor
20 rotating speed, neRotating speed for electromotor 10).
Due in the 3rd working condition and four working conditions, after hybrid electric drive system coupling,
Drive shaft 80 has two kinds of different rotating speeds, therefore can reduce the amplitude of variation of motor 20 rotating speed, fall
The low requirement to motor 20.
Brake energy recovery pattern：When vehicle deceleration braking or descending, hybrid electric drive system is permissible
Select Brake energy recovery pattern, now electromotor 10 oil-break is closed, motor 20 works in motor shape
The kinetic energy of vehicle can be converted into electric energy and be stored in accumulator 30 by state.Now clutch and brake
The same electric-only mode of action, but its energy transmission path is contrary with electric-only mode.In such a mode,
Hybrid electric drive system can realize the recovery path of two kinds of braking energies, from difference speed reducer 81 to electronic
The gear ratio of machine is：Or
Engine start pattern：When a vehicle is started, hybrid electric drive system can select electromotor to open
Dynamic model formula, now the 3rd clutch 43 be combined with electromotor 10, enable motor 20 to drive electromotor
10, realize the startup of electromotor 10.Therefore, the vehicle with this hybrid electric drive system can be by electricity
Machine 20, as starting motor to start electromotor 10, can save deactivation motor, simplifies drive system.
Moment coupling combination drive charge mode：When vehicle operation is in the SOC compared with underload and accumulator 30
When (State of Charge, state-of-charge) is relatively low, hybrid electric drive system can select moment coupling to mix
Close and drive charge mode, now electromotor 10 works on optimal fuel-economy curve, the 3rd clutch
43 are combined with electromotor 10, and the first brake 51 is combined with front-seat sun gear 61, and by the front-seat sun
Take turns 61 lockings, second brake 52 is combined with front-seat gear ring 63, and by front-seat gear ring 63 locking, electric
Machine 20 works in Generator Status, vehicle can be driven to travel unnecessary kinetic energy electromotor 10 and be converted into
Electrical energy for storage is in accumulator 30.
Parking charge mode：When the electricity of vehicle parking and accumulator 30 is too low, in order to ensure accumulator
30 SOC is in certain scope, prevents battery electric quantity too low, extends the life-span of accumulator 30, needs
Want electromotor 10 drive motor 20 that accumulator 30 is charged, it is possible to use parking charge mode, now
Three clutches 43 are combined with electromotor 10, and each brake all separates, and electromotor 10 works in optimal combustion
Simultaneously drive motor 20 generates electricity the economic point of oil, and electrical power storage in accumulator 30.
When being operated the switching between pattern by hybrid electric drive system, by hybrid drive train
System master controller accepts the status signal of vehicle, and carries out decision-making by intellectual analysis, so that it is determined that switching
Pattern.Switching between two kinds of mode of operations is not related to the switching between power source, that is, before switching
Mode of operation after mode of operation and switching is all to be moved by electromotor 10, motor 20 or the two common offer
During power, only corresponding clutch and brake need to be controlled to be cut by clutch controller and brake monitor
Change；Switching between two kinds of mode of operations is related to the switching between power source, that is, the work before switching
Operation mode, compared with the mode of operation after switching, when power source changes, now needs in switching clutch
While device and brake, start the power source after switching.So, you can to make when switching completes to cut
Power source after changing reaches certain torque, can prevent in switching working mode, due to power source
Response time is not enough, and causes the impact to drive disk assembly, it is achieved thereby that switching between mode of operation
Ride comfort and response are optimum.
With hybrid electric drive system, the mode of operation of vehicle is cut from the first working condition of electric-only mode
As a example shifting to the 3rd working condition of infinitely variable speeds combination drive pattern.Work when hybrid electric drive system
When operation mode is the first working condition of electric-only mode, before the handover, second clutch 42 is with front row too
Sun wheel 61 combination, by front-seat gear ring 63 locking, the 3rd brake 53 is by rear seniority among brothers and sisters for second brake 52
Carrier 74 locking, the power of vehicle passes through front-seat sun gear 61 by motor 20 and inputs, rows of planetary before drive
Wheel 62 rotation, power is transferred to heel row sun gear 71 by front-seat planet carrier 64 by front-seat planetary gear 62,
Power is transferred to rear ring gear 73, rear ring gear 73 by heel row planetary gear 72 by heel row sun gear 71
Power after subtractive speed is transferred to by drive shaft 80 by difference speed reducer 81.Hybrid electric drive system is total
Controller accepts SOC signal, GES and the accelerator pedal signal of accumulator 30, is determined by intelligence
Plan, sends and is switched to the 3rd of infinitely variable speeds combination drive pattern by the first working condition of electric-only mode
The switching command of working condition, now master controller pass through clutch controller by first clutch 41 with front-seat
Gear ring 63 combines, and second clutch 42 is separated with front-seat sun gear 61, and brake monitor is in the same time
Control the first brake 51 by front-seat sun gear 61 locking, second brake 52 and front-seat 63 points of gear ring
From making front-seat gear ring 63 depart from lockup state, the 3rd brake 53 is separated with heel row planet carrier 74, makes
Heel row planet carrier 74 departs from lockup state, and while starting switching, master controller starts electromotor immediately
10, electromotor 10 thus can be made to have certain torque when switching completes, can prevent due to work
The deficiency of electromotor 10 response time during operation mode switching, and cause the impact to other vehicle components,
It is achieved thereby that the ride comfort of mode of operation switching and response are optimum.
In sum, the hybrid electric drive system that the present invention provides passes through Reasonable Arrangement dynamic coupling system,
By three clutches and compound planetary gearing, cleverly the power coupling of electromotor and motor one
Rise, using single motor and by controlling three clutches and three brakeages, you can realize mixing
The rotating speed of power-driven system and the coupling of torque, reduce the complexity of system, realize multiple work
Pattern, and arrange simple, compact conformation, lightweight, the economy of vehicle fuel is provided, reduces discharge,
The ride comfort and the response that are capable of mode of operation switching be optimum simultaneously, it is to avoid is led to using bi-motor
Arrangement is complicated, the problem of high cost, realizes the powershift of different working modes using three clutches simultaneously,
The feature having double clutch concurrently and the deficiency that double clutch interface can be made up well.
The present invention also provides a kind of motor vehicle driven by mixed power, including vehicle hybrid drivetrain as above
System, the other structures with regard to this motor vehicle driven by mixed power may refer to prior art, will not be described here.
The above, be only presently preferred embodiments of the present invention, not the present invention is made any formal
Restriction although the present invention is disclosed above with preferred embodiment, but be not limited to the present invention,
Any those skilled in the art, in the range of without departing from technical solution of the present invention, on can be utilized
The technology contents stating announcement make a little Equivalent embodiments changing or be modified to equivalent variations, as long as being not
Depart from technical solution of the present invention content, according to the present invention technical spirit above example is made any
Simple modification, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (10)
1. a kind of vehicle hybrid power drive system it is characterised in that：Including electromotor (10), motor
(20), accumulator (30), clutch system (40), brakes (50), front-seat planetary gears (60),
Heel row planetary gears (70) and drive shaft (80), described front row planetary gears (60) includes
Front-seat sun gear (61), front-seat planetary gear (62), front-seat gear ring (63) and front-seat planet carrier (64),
Described heel row planetary gears (70) include heel row sun gear (71), heel row planetary gear (72), after
Toothrow circle (73) and heel row planet carrier (74), described front row planet carrier (64) and described heel row sun gear
(71) it is fixedly linked, the output shaft of described electromotor (10) and described heel row planet carrier (74) fixing phase
Even, it is provided with difference speed reducer (81) between described heel row planetary gears (70) and described drive shaft (80),
Described rear ring gear (73) is connected with described drive shaft (80) by described difference speed reducer (81), institute
State drive shaft (80) and power is transferred to wheel (90), described accumulator (30) and described motor (20)
It is connected, described clutch system (40) includes first clutch (41), second clutch (42) and the 3rd
Clutch (43), described motor (20) passes through described first clutch (41) and described front row gear ring (63)
It is connected, described motor (20) passes through described second clutch (42) and described front row sun gear (61)
It is connected, described motor (20) passes through the defeated of described 3rd clutch (43) and described electromotor (10)
Shaft is connected, and described brakes (50) is to described front row planetary gears (60) and described heel row
Part in planetary gears (70) is braked.
2. vehicle hybrid power drive system according to claim 1 it is characterised in that：Described system
Dynamic system (50) includes the first brake (51), second brake (52) and the 3rd brake (53),
Described first brake (51) is connected with described front row sun gear (61) and is used for front row described in locking too
Sun wheel (61), described second brake (52) is connected with described front row gear ring (63) and is used for locking institute
State front-seat gear ring (63), described 3rd brake (53) is connected with described heel row planet carrier (74) and is used in combination
In heel row planet carrier (74) described in locking.
3. vehicle hybrid power drive system according to claim 1 it is characterised in that：Described
Motivation (10), described motor (20), described first clutch (41), described second clutch (42),
Described 3rd clutch (43), described front row planetary gears (60) and described heel row planetary gear machine
Structure (70) is coaxially disposed.
4. vehicle hybrid power drive system according to claim 1 it is characterised in that：Described car
Hybrid electric drive system also include vehicle hybrid power drive system master controller, clutch controller and
Brake monitor, described master controller controls the startup of described electromotor (10) and described motor (20)
With stopping, described clutch controller and described brake monitor control respectively described clutch system (40) and
The combination of described brakes (50) with separate.
5. vehicle hybrid power drive system according to claim 2 it is characterised in that：Described car
Hybrid electric drive system has electric-only mode, under described electric-only mode, only passes through described electricity
Machine (20) drives vehicle to travel, and vehicle has the first working condition and two kinds of work shapes of the second working condition
State；When being in described first working condition, described second clutch (42) with described front row sun gear
(61) combine, by described front row gear ring (63) locking, the described 3rd makes described second brake (52)
Dynamic device (53) is by described heel row planet carrier (74) locking；When being in described second working condition, institute
State first clutch (41) to combine with described front row gear ring (63), described first brake (51) will
Front-seat sun gear (61) locking, described 3rd brake (53) is by heel row planet carrier (74) locking.
6. vehicle hybrid power drive system according to claim 2 it is characterised in that：Described car
Hybrid electric drive system has electromotor (10) drive pattern, drives in described electromotor (10)
Under pattern, described three clutches all separate, and described electromotor (10) starts and described motor (20) stops
Only, described first brake (51) is by front-seat sun gear (61) locking, described second brake (52)
By front-seat gear ring (63) locking.
7. vehicle hybrid power drive system according to claim 2 it is characterised in that：Described car
Hybrid electric drive system has moment coupling combination drive pattern, in described moment coupling combination drive
Under pattern, described 3rd clutch (43) is combined with described electromotor (10), described electromotor (10)
All start with described motor (20), described first brake (51) by described front row sun gear (61)
Locking, described second brake (52) is by front-seat gear ring (63) locking.
8. vehicle hybrid power drive system according to claim 2 it is characterised in that：Described car
Hybrid electric drive system has infinitely variable speeds combination drive pattern, in described infinitely variable speeds combination drive
Under pattern, described electromotor (10) and described motor (20) all start, and vehicle has the 3rd work shape
State and two kinds of working conditions of the 4th working condition；When being in described three working condition, described first from
Clutch (41) is combined with described front row gear ring (63), and described first brake (51) is by described front row
Sun gear (61) locking；When being in described four working condition, described second clutch (42) with
Described front row sun gear (61) combines, and described second brake (52) is by front-seat gear ring (63) locking.
9. vehicle hybrid power drive system according to claim 2 it is characterised in that：Described car
Hybrid electric drive system has moment coupling combination drive charge mode, in the mixing of described moment coupling
Drive under charge mode, described 3rd clutch (43) is combined with described electromotor (10), described the
By described front row sun gear (61) locking, described second brake (52) is by institute for one brake (51)
State front-seat gear ring (63) locking, described motor (20) works in electromotor (20) state and permissible
Drive vehicle to travel unnecessary kinetic energy in described electromotor (10) and be converted into electrical energy for storage in described electric power storage
In pond (30).
10. a kind of motor vehicle driven by mixed power it is characterised in that：Including any one in such as claim 1 to 9
Vehicle hybrid power drive system described in.
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| CN110406362A (en) * | 2018-04-28 | 2019-11-05 | 舍弗勒技术股份两合公司 | Electric automobile and power assembly thereof |
| CN108909443A (en) * | 2018-08-08 | 2018-11-30 | 广州汽车集团股份有限公司 | Electronic assembly and electric car |
| CN110126606A (en) * | 2019-05-20 | 2019-08-16 | 湘潭大学 | A kind of efficient hybrid power automobile power assembly device |
| CN112606674B (en) * | 2020-12-16 | 2022-05-13 | 浙江盘毂动力科技有限公司 | Electromechanical hybrid transmission stepless speed change structure and vehicle |
| CN112606674A (en) * | 2020-12-16 | 2021-04-06 | 浙江盘毂动力科技有限公司 | Electromechanical hybrid transmission stepless speed change structure and vehicle |
| CN113085519A (en) * | 2021-05-06 | 2021-07-09 | 华中科技大学 | Dual-motor electric automobile driving system |
| CN113246713A (en) * | 2021-05-17 | 2021-08-13 | 何大为 | Hybrid power driving system |
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