CN209320674U - Hybrid power coupled system and vehicle - Google Patents
Hybrid power coupled system and vehicle Download PDFInfo
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- CN209320674U CN209320674U CN201822245870.1U CN201822245870U CN209320674U CN 209320674 U CN209320674 U CN 209320674U CN 201822245870 U CN201822245870 U CN 201822245870U CN 209320674 U CN209320674 U CN 209320674U
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Abstract
The utility model belongs to new-energy automobile field, it is related to hybrid power coupled system and vehicle, including engine, generator, driving motor, planetary gear mechanism, first brake, second brake, jackshaft and first gear, planetary gear mechanism includes sun gear, planet carrier, planetary gear and gear ring, the output shaft of engine is connected with planet carrier, planet carrier is connected with the first brake, the output shaft of generator is connected with sun gear, the output shaft of generator is also connected with second brake, first gear is set on jackshaft and engages with gear ring, driving motor is connected with jackshaft, jackshaft output power is to wheel；Be conducive to reduce system load, can be realized multiple drive modes, there is higher transmission efficiency, improve the power performance and economy of vehicle.
Description
Technical field
The utility model belongs to new-energy automobile field, more particularly to hybrid power coupled system and vehicle.
Background technique
Dynamical system includes engine (internal combustion engine) and a power train being made of speed changer, differential mechanism and transmission shaft
System；Its effect is driving power needed for providing driving wheel to vehicle.Internal combustion engine has certain speed and torque range, and
Wherein reach optimal working condition in the range of very little, at this moment or oil consumption is minimum or noxious emission is minimum or two
All so.However, actual road conditions are ever-changing, in the speed for not only showing driving wheel, while being also manifested by required by driving wheel
Torque.Therefore, realize that revolving speed and the torque of internal combustion engine are optimal, i.e. power optimum state, the matching with driving wheel dynamic regime
It is good, it is the top priority of speed changer.
Speed changer currently on the market mainly has step change transmission and stepless transmission two major classes.Step change transmission segments again
It is manually and automatically two kinds.They are arranged by the different engagement of gear train or planetary gear train limited discrete to provide mostly
Output input speed ratio.The adjusting of wheel speed is driven then to realize by the velocity variations of internal combustion engine between two adjacent speed ratios.It is stepless
Speed changer, either mechanically, one electric-type of fluid pressure type or machine, unlimited can be provided in certain speed range continuously may be used
The speed ratio of selection, in theory, the velocity variations of driving wheel can be completed completely by speed changer.In this way, internal combustion engine can use up
Possible work is in optimized range of speeds.Stepless transmission is compared with step change transmission simultaneously, has speed regulation steadily, can be sufficiently
Many advantages, such as using internal combustion engine maximum power, therefore, stepless transmission are always pair of various countries' engineers research for many years
As.
In recent years, the birth of electric machine mixed power technology is to realize that the exact matching of power between internal combustion engine and power wheel is opened
New approach is opened up.It is most representative to have serial hybrid system and mixed stocker in parallel in numerous power assembly design cases
Two kinds of system.In motor serial hybrid system, one shafting of internal combustion engine one generator, one motor, one driving wheel composition one is concatenated
Power transmission chain, power assembly structure are extremely simple.Wherein, one motor of generator combination can be considered the speed changer under traditional sense.
When with accumulator, such as battery, when capacitor etc. is used in combination, the speed changer but also as energy conditioner, complete to speed and
Torque it is separately adjustable.
Motor parallel system has two parallel independent power transmission chains.One is made of traditional mechanical transmission, another
Item is made of one battery system of motor.Mechanical transmission is responsible for completing the adjusting to speed, and one battery system of motor is then completed
Adjusting to power or torque.For the potential for giving full play to whole system, mechanical transmission is also needed using stepless gearing method.
The advantages of serial hybrid system, is that structure is simple, flexible layout.But since whole power pass through generator and electricity
Motivation, therefore the power requirement of motor is high, volume is big, weight weight.Simultaneously as energy transport is electric by machine one twice,
The conversion of an electric machine, the efficiency of whole system are lower.In parallel hybrid system, only partial power passes through electric system, because
This, it is relatively low to the power requirement of motor.Total system it is high-efficient.However, this system needs two sets of independent subsystems, make
Valence is high.It is generally only used for Weak mixing system.
A kind of existing dynamic coupling system, including engine, first planetary gear mechanism, the second planetary gear mechanism,
Power battery, and the first motor being connect respectively with power battery and the second motor；First planetary gear mechanism includes first too
Positive wheel, the first planetary gear, the first outer gear ring and first planet carrier, the second planetary gear mechanism include the second sun gear, the second row
Star-wheel, the second outer gear ring and the second planet carrier；Engine is connected with the first sun gear, is equipped between the two for controlling engine
It is separated with the first sun gear and closes the first clutch closed and the first brake for the first sun gear of locking, the second motor is logical
It crosses second clutch and planet carrier clutch to be connected with the first sun gear or first planet carrier respectively, the second motor and the first planet
The second brake for locking first planet carrier, the planetary gear mechanism outer ring gear teeth and the first external tooth are equipped between gear mechanism
Circle connection, and engaged with outer gear ring driving wheel, the torque transfer for coupling engine and motor to the second planetary gear machine
Structure；
The second ring gearwheel clutch is provided between second outer gear ring and the second planet carrier, for controlling the second outer gear ring and the
The separation of two planet carriers is closed with conjunction；Second outer gear ring is equipped with outer gear ring brake, is used for the second outer gear ring of locking；Second planet
Gear mechanism and outer gear ring brake, the second ring gearwheel clutch together constitute two grades of gears.Second planetary gear mechanism
It is connect by gear set with differential mechanism, then passes through differential mechanism for the torque transfer of coupling to wheel；
Although aforementioned existing dynamic coupling system can realize multiple-working mode by different control strategies, knot
Structure is complicated, increases system load, control is complicated, and engine, first motor, the second motor are all connected to first planetary gear machine
Structure, the power of engine, first motor and the second motor is both needed to by first planetary gear mechanism and the second row when driving wheel
Star gear mechanism output power, dynamic property and economy are insufficient.
Utility model content
The technical problem to be solved by the utility model is to being directed to existing scheme dynamic coupling system dynamic property and economy
Insufficient problem provides a kind of hybrid power coupled system and vehicle.
In order to solve the above technical problems, the utility model embodiment provides a kind of hybrid power coupled system, including hair
Motivation, generator, driving motor, planetary gear mechanism, the first brake, second brake, jackshaft and first gear, it is described
Planetary gear mechanism includes sun gear, planet carrier, planetary gear and gear ring；
The output shaft of the engine is connected with the planet carrier, and the planet carrier is connected with first brake；
The output shaft of the generator is connected with the sun gear, and the output shaft of the generator is also braked with described second
Device is connected；
The first gear is set on the jackshaft and engages with the gear ring；
The driving motor is connected with the jackshaft；
The jackshaft output power is to wheel.
It optionally, further include clutch, the output shaft of the engine is connected by the clutch with the planet carrier.
Optionally, the gear ring is rotationally sheathed on the output shaft of the generator, the first gear with it is described
The speed ratio of gear ring is less than 1.
Optionally, the output shaft of the engine and the output shaft of the generator are coaxially arranged；
One end of the output shaft of the generator is connected with the sun gear, and the other end is connected with the second brake.
Optionally, the driving motor is connected to the jackshaft by the first speed reducing gear pair.
Optionally, first speed reducing gear pair includes the first gear and the second tooth for engaging with the first gear
Wheel, the second gear are set on the output shaft of the driving motor.
It optionally, further include third gear and the 4th gear for connected with differential；
The third gear is set on the jackshaft and is arranged with the first gear interval, the third gear and institute
State the engagement of the 4th gear, the speed ratio of the 4th gear and the third gear less than 1, or
The third gear is engaged between the first gear and the 4th gear, the 4th gear and described the
The speed ratio of three gears is less than 1, and the speed ratio of the third gear and the first gear is less than 1.
Optionally, there is the hybrid power coupled system engine direct to drive mode, combination drive mode, the pure electricity of single motor
Dynamic model formula, bi-motor electric-only mode and e-CVT mode；
First brake is separated, in conjunction with the second brake, the engine driving, the generator and described
Driving motor does not work, and drives mode to establish the engine direct；
First brake is separated, in conjunction with the second brake, the engine driving, the generator not work
Make, the driving motor driving, to establish the combination drive mode；
First brake is separated, in conjunction with the second brake, the engine does not work, the generator not work
Make, the driving motor driving, to establish the single motor electric-only mode；
In conjunction with first brake, the second brake is separated, the engine does not work, the generator and institute
The common driving of driving motor driving is stated, to establish the bi-motor electric-only mode；
First brake is separated, the second brake, electrical power generators described in the engine driving, institute are separated
Driving motor driving is stated, to establish the e-CVT mode.
Optionally, there is the hybrid power coupled system engine direct to drive mode, combination drive mode, the pure electricity of single motor
Dynamic model formula, bi-motor electric-only mode and e-CVT mode；
In conjunction with the clutch, first brake is separated, in conjunction with the second brake, the engine driving,
The generator and the driving motor do not work, and drive mode to establish the engine direct；
In conjunction with the clutch, first brake is separated, in conjunction with the second brake, the engine driving,
The generator does not work, the driving motor driving, to establish the combination drive mode；
It separates the clutch, separates first brake, in conjunction with the second brake, the engine not work
Make, the generator does not work, the driving motor driving, to establish the single motor electric-only mode；
The clutch is separated, in conjunction with first brake, separates the second brake, the engine not work
Make, the generator and the common driving of driving motor driving, to establish the bi-motor electric-only mode；
In conjunction with the clutch, first brake is separated, the second brake, the engine driving institute are separated
State electrical power generators, the driving motor driving, to establish the e-CVT mode.
The utility model embodiment additionally provides a kind of vehicle, including controller, be connected to the controller battery and
Aforementioned hybrid coupled system, the engine, the generator and the driving motor be connected to the controller and by
The controller control.
Hybrid power coupled system and vehicle provided by the embodiment of the utility model, by switching the first brake and second
Brake working condition (in conjunction with or disconnect) and engine, generator and driving motor whether output power, can be realized hair
It is a variety of that motivation directly drives mode, combination drive mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode etc.
Drive mode obtains higher transmission efficiency, improves vehicle economy；Engine and generator are realized by planetary gear mechanism
Deceleration when wheel is driven, structure is simple, compact, reduces number of parts, is conducive to reduce system load, improves the dynamic of vehicle
Power performance is conducive to reduce volume, reduces the cost of reduction assemblies；
Under combination drive mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode, driving motor
Driving is both participated in, power interruption is avoided.
Driving power needed for the hybrid power coupled system effectively supplements wheel by power battery is to more rationally
The power of internal combustion engine is deployed on ground, and the working condition of internal combustion engine is kept to be not affected or less affected by the influence of road conditions.Internal combustion engine can work always
In the optimum state of setting, to improve the fuel efficiency of vehicle, it is suitable for HEV vehicle and PHEV vehicle, hardware and software platform is good.
Detailed description of the invention
Fig. 1 is the structure diagram of hybrid power coupled system provided by the embodiment of the utility model；
Fig. 2 is power transmission line figure of the hybrid power coupled system under engine direct drive mode shown in Fig. 1；
Fig. 3 is power transmission line figure of the hybrid power coupled system under combination drive mode shown in Fig. 1；
Fig. 4 is power transmission line figure of the hybrid power coupled system under single motor electric-only mode shown in Fig. 1；
Fig. 5 is power transmission line figure of the hybrid power coupled system under bi-motor electric-only mode shown in Fig. 1；
Fig. 6 is power transmission line figure of the hybrid power coupled system under e-CVT mode shown in Fig. 1；
Appended drawing reference in specification is as follows:
1, engine；2, generator；3, driving motor；
4, planetary gear mechanism；41, sun gear；42, planetary gear；43, planet carrier；44, gear ring；
5, clutch；6, the first brake；7, second brake；
8, jackshaft；
10, first gear；11, second gear；
13, third gear；14, the 4th gear；
15, differential mechanism；16, wheel.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, hybrid power coupled system provided by the embodiment of the utility model, including engine 1, generator 2,
Driving motor 3, planetary gear mechanism 4, the first brake 6, second brake 7, jackshaft 8 and first gear 10；Planetary gear
Mechanism 4 includes sun gear 41, planet carrier 43, planetary gear 42 and gear ring 44；
The output shaft of engine 1 is connected with planet carrier 43, and planet carrier 43 is connected with the first brake 6；
The output shaft of generator 2 is connected with sun gear 41, and the output shaft of generator 2 is also connected with second brake 7；
First gear 10 is set on jackshaft 8 and engages with gear ring 44；
Driving motor 3 is connected with jackshaft 8；
8 output power of jackshaft is to wheel 16.
When engine 1 or generator 2 and driving motor 3 participate in driving jointly, jackshaft 8 plays the work of coupling power
With, and the power after coupling is transmitted to wheel 16.
Hybrid power coupled system provided by the embodiment of the utility model passes through the first brake of switching 6 and the second braking
Device 7 working condition (in conjunction with or disconnect) and engine 1, generator 2 and driving motor 3 whether output power, can be realized hair
It is a variety of that motivation directly drives mode, combination drive mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode etc.
Drive mode obtains higher transmission efficiency, improves vehicle economy；Engine 1 and generator 2 pass through planetary gear mechanism 4
Realize the deceleration (sharing reduction assemblies) when driving wheel 16, structure is simple, compact, reduces number of parts, is conducive to subtract
Mini system load, improves the power performance of vehicle, is conducive to reduce volume, reduces the cost of reduction assemblies；
Under combination drive mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode, driving motor 3
Driving is both participated in, power interruption is avoided.
Driving power needed for the hybrid power coupled system effectively supplements wheel 16 by power battery is to more close
The power of reason ground allotment internal combustion engine, keeps the working condition of internal combustion engine to be not affected or less affected by the influence of road conditions.Internal combustion engine can work always
Make the optimum state in setting, to improve the fuel efficiency of vehicle, is suitable for HEV vehicle and PHEV vehicle, hardware and software platform is good.
Wherein, generator 2 is dynamoelectric machine (M/G), can be used for generating electricity and driving.
Specifically, generator 2 is also used as starting motor, for starting engine 1.If generator 2 does not drive, does not send out
Electricity, and when the driving of engine 1, generator 2 stops working after starting engine 1；If the driving of generator 2 or power generation, and engine 1
When driving, generator 2 keeps working condition after starting engine 1.
Preferably, gear ring 44 is rotationally sheathed on the output shaft of generator 2, is conducive to increase structural stability and biography
Dynamic stationarity.
In one embodiment, as shown in Figure 1, the output shaft of engine 1 and the output shaft of generator 2 are coaxially arranged；Power generation
One end of the output shaft of machine 2 is connected with sun gear 41, and the other end is connected with second brake 7.Structure is simple, compact, is conducive to
It reduces system load and increases structural stability and transmission stability.
In one embodiment, as shown in Figure 1, first gear 10 and the speed ratio of gear ring 44 are less than 1, gear ring 44 and first gear
10 constitute primary speed-down gear pair, and structure is simple, compact, realizes better power matching.
In addition, jackshaft 8 is connected to differential mechanism 15 as shown in Figure 1, hybrid power coupled system further includes differential mechanism 15,
Differential mechanism 15 drives wheel 16.
Preferably, as shown in Figure 1, hybrid power coupled system further includes main speed reducing gear pair, jackshaft 8 passes through main deceleration
Gear pair deceleration is connected to differential mechanism 15.
In one embodiment, as shown in Figure 1, further including clutch 5, the output shaft of engine 1 passes through clutch 5 and planet
Frame 43 is connected.By controlling the on-off of clutch 5, whether Lai Shixian engine 1 participates in the control of driving；Needing engine 1
When wheel 16 or driven generator 2 being driven to generate electricity, in conjunction with clutch 5, when being not required to engine 1 and working, cut-off clutch 5 with
System load is reduced, engine 1 is protected.
In one embodiment, as shown in Figure 1, driving motor 3 is connected to jackshaft 8 by the first speed reducing gear pair.Driving
The power that motor 3 provides transmits power to differential mechanism 15 again after the deceleration of the first speed reducing gear pair, realizes better power
Match.
Specifically, as shown in Figure 1, the first speed reducing gear pair includes intermeshing first gear 10 and second gear 11,
Second gear 11 is set on the output shaft of driving motor 3.Structure is simple, compact, is conducive to reduce system load, ensure that transmission
Stationarity.
In one embodiment, as shown in Figure 1, further including third gear 13 and the 4th gear for connected with differential 15
14, third gear 13, which is set on jackshaft 8 and is spaced with first gear 10, to be arranged, and third gear 13 is engaged with the 4th gear 14,
It realizes simultaneously and the power of driving motor 3, engine 1 or generator 2 is inputted into differential mechanism 15；
It is preferred that the speed ratio of the 4th gear 14 and third gear 13, less than 1, third gear 13 and the 4th gear 14 combine at this time
At main speed reducing gear pair, while realizing and driving motor 3, engine 1 or generator 2 are subtracted towards the power that wheel 16 exports
Speed, structure is simple, compact, is conducive to reduce system load.
It in one embodiment, not shownly, further include third gear 13 and the 4th gear 14 for connected with differential 15,
Third gear 13, which is engaged between first gear 10 and the 4th gear 14, (can refer to Fig. 1, cancels in Fig. 1 first gear 10 and the
The engagement of two gears 11 is changed to first gear 10 being engaged in third gear 13), first gear 10, third gear 13 and the 4th
The combination of gear 14 forms main speed reducing gear pair, while realizing the power of driving motor 3, engine 1 or generator 2 inputting differential
Device 15.
It is preferred that the speed ratio of the 4th gear 14 and third gear 13, less than 1, third gear 13 and the speed ratio of first gear 10 are small
In 1, first gear 10, third gear 13 and the 4th gear 14 are combined into double reduction gearing pair at this time, while realizing to driving
The double reduction for the power that motor 3, engine 1 or generator 2 are exported towards wheel 16, structure is simple, compact, is conducive to reduce
System load.
Preferred reality to the control for being related to brake (referring to the first brake 6, second brake 7) and clutch 5 below
Example is applied to be illustrated:
There is hybrid power coupled system engine direct to drive mode, combination drive mode, single motor electric-only mode, double electricity
Five kinds of operating modes such as machine electric-only mode and e-CVT mode；
Wherein, aforementioned five kinds of operating modes are embodied with table 1.
Table 1
Following mode illustrates the power transmission line of hybrid power coupled system in conjunction with Fig. 2 to Fig. 6；
(1) engine direct drives mode
In conjunction with clutch 5, the first brake 6 is separated, in conjunction with second brake 7, engine 1 is driven, generator 2 and driving
Motor 3 does not work, and drives mode to establish engine direct；
Specifically, as shown in Fig. 2, power transmission line under the drive mode are as follows: engine 1- > clutch 5- > row
The 4th gear of carrier 43- > planetary gear 42- > gear ring 44- > first gear 10- > jackshaft 8- > third gear 13- >
14- > differential mechanism 15- > wheel 16.
When speed requires high speed, hybrid power coupled system can enter engine direct and drive mode.
(2) combination drive mode
In conjunction with clutch 5, the first brake 6 is separated, in conjunction with second brake 7, engine 1 is driven, the not work of generator 2
Make, driving motor 3 drives, to establish combination drive mode；
Specifically, as shown in figure 3, power transmission line 1 under the drive mode are as follows: engine 1- > clutch 5- > row
The 4th gear of carrier 43- > planetary gear 42- > gear ring 44- > first gear 10- > jackshaft 8- > third gear 13- >
14- > differential mechanism 15- > wheel 16,
Power transmission line 2 are as follows: driving motor 3- > second gear 11- > first gear 10- > jackshaft 8- > third
The 4th gear 14- > differential mechanism 15- > wheel 16 of gear 13- >.
When speed requires to be high speed, hybrid power coupled system can enter combination drive mode, engine 1, driving electricity
Machine 3 drives wheel 16 jointly.
(3) single motor electric-only mode
Clutch 5 is separated, the first brake 6 is separated, in conjunction with second brake 7, engine 1 does not work, the not work of generator 2
Make, driving motor 3 drives, to establish single motor electric-only mode；
Specifically, as shown in figure 4, power transmission line under the drive mode are as follows: driving motor 3- > second gear
The 4th gear 14- > differential mechanism 15- > wheel 16 of 11- > first gear 10- > jackshaft 8- > third gear 13- >.
When power battery electricity abundance, hybrid power coupled system can enter single motor electric-only mode, be suitable in it is low
Speed.
(4) the pure electric drive mode of bi-motor
Clutch 5 is separated, in conjunction with the first brake 6, separates second brake 7, engine 1 does not work, generator 2 and drive
Dynamic motor 3 drives common driving, to establish bi-motor electric-only mode；
Specifically, as shown in figure 5, power transmission line 1 under the drive mode are as follows: generator 2- > sun gear 41- >
The 4th gear 14- > differential mechanism of planetary gear 42- > gear ring 44- > first gear 10- > jackshaft 8- > third gear 13- >
15- > wheel 16,
Power transmission line 2 are as follows: driving motor 3- > second gear 11- > first gear 10- > jackshaft 8- > third
The 4th gear 14- > differential mechanism 15- > wheel 16 of gear 13- >.
When power battery electricity abundance, hybrid power coupled system can enter bi-motor pure electric drive mode, be suitable for
Low speed.
(5) e-CVT mode
In conjunction with clutch 5, the first brake 6 is separated, separates second brake 7, the power generation of 1 driven generator 2 of engine is driven
Dynamic motor 3 drives, to establish e-CVT mode；
Specifically, as shown in fig. 6, power transmission line 1 under the drive mode are as follows: engine 1- > clutch 5- > row
The 4th gear of carrier 43- > planetary gear 42- > gear ring 44- > first gear 10- > jackshaft 8- > third gear 13- >
14- > differential mechanism 15- > wheel 16,
Power transmission line 2 are as follows: engine 1- > clutch 5- > planet carrier 43- > planetary gear 42- > sun gear 41- >
Generator 2,
Power transmission line 3 are as follows: driving motor 3- > second gear 11- > first gear 10- > jackshaft 8- > third
The 4th gear 14- > differential mechanism 15- > wheel 16 of gear 13- >.
Hybrid power coupled system enters e-CVT mode, and engine 1 and driving motor 3 drive wheel 16 jointly, send out simultaneously
The also driven generator 2 of motivation 1 is power battery power generation.
(6) power generation in parking mode
Clutch 5 is separated, the first brake 6 is separated, separates second brake 7, engine 1 and generator 2 do not work, and drive
Dynamic motor 3 generates braking moment and generates induced current in its winding and charges to power battery electricity, to establish power generation in parking
Mode；
When vehicle braking, hybrid power coupled system can enter power generation in parking mode, and driving motor 3 generates braking moment
Brake wheel 16, while induced current will be generated in the winding of driving motor 3 to power battery charging, realize returning for braking energy
It receives.
In addition, cancelling the control to clutch 5, the power road of each operating mode if cancelling the setting of clutch 5
Line accordingly need not pass through clutch 5, to exempt to repeat, the control no longer to brake in each operating mode of the program herein and
Power path is enumerated.
The utility model embodiment additionally provides vehicle, including controller and the power battery for being connected to controller, also wraps
The hybrid power coupled system that aforementioned any embodiment is addressed is included, engine 1, generator 2 and driving motor 3 are connected to controller
And it is controlled by the controller.
Using aforementioned hybrid coupled system, 1 energy driven generator 2 of engine is power battery power generation, power battery
The power of driving wheel 16 can be provided for generator 2 and driving motor 3, engine 1 can direct drive of wheel 16, switching the
The working condition of one brake 6 and the working condition of second brake 7, and control engine 1, generator 2 and driving motor 3
Working condition is able to achieve multiple drive modes, obtains higher transmission efficiency；Engine direct drives mode, avoids machine-electricity, electricity-
The energy of machine is converted, and transmission efficiency is improved；Due to realizing bi-motor electric-only mode, to can be further improved the dynamic of vehicle
Power performance reduces vehicle production cost；Engine 1 and generator 2 share reduction assemblies, and structure is simple, compact, reduce part
Quantity is conducive to reduce load, to can be further improved the power performance of vehicle, reduces vehicle production cost；Combination drive
Under mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode, driving motor 3 both participates in driving, avoids
Power interruption；Supplement driving power needed for wheel 16 effectively by power battery to more reasonably deploy the dynamic of internal combustion engine
Power keeps the working condition of internal combustion engine to be not affected or less affected by the influence of road conditions.Internal combustion engine can always work in the optimum state of setting,
To improve the fuel efficiency of vehicle, it is suitable for HEV vehicle and PHEV vehicle, hardware and software platform is good.
In one embodiment, five kinds of hybrid power coupled system can be automatically switched according to SOC value of battery and speed demand
(engine direct drives mode, combination drive mode, single motor electric-only mode, the pure electric drive mode of bi-motor and e- to drive mode
CVT mode), automatically switch the control flow of five kinds of drive modes, includes the following steps:
S1, controller judge the size relation of SOC value of battery and first threshold, or judge SOC value of battery and simultaneously
The size relation and speed of one threshold value and the size relation of second threshold；
S2, controller switch the operating mode of hybrid power coupled system according to the judging result of step S1；
S3, in braking, controller control driving motor 3, which generates, braking moment and generates induced current in its winding
With to power battery charging.
Wherein, first threshold is used to judge that the height of SOC value of battery, second threshold to be used to judge the height of speed, this reality
It applies example not limit the value range of first threshold and second threshold, usually can freely be set according to specific control strategy
Fixed, under different control strategies, the value of first threshold and second threshold is all not quite similar.The first threshold is set in the controller
After value and second threshold, then controller carries out the judgement of step S1 and according to the judging result of step S1 in five kinds of driving moulds automatically
Automatically switch between formula.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (10)
1. a kind of hybrid power coupled system, including engine, generator, driving motor and planetary gear mechanism, the planet
Gear mechanism includes sun gear, planet carrier, planetary gear and gear ring, which is characterized in that further includes the first brake, the second braking
Device, jackshaft and first gear；
The output shaft of the engine is connected with the planet carrier, and the planet carrier is connected with first brake；
The output shaft of the generator is connected with the sun gear, the output shaft of the generator also with the second brake phase
Even；
The first gear is set on the jackshaft and engages with the gear ring；
The driving motor is connected with the jackshaft；
The jackshaft output power is to wheel.
2. hybrid power coupled system according to claim 1, which is characterized in that it further include clutch, the engine
Output shaft be connected with the planet carrier by the clutch.
3. hybrid power coupled system according to claim 2, which is characterized in that the hybrid power coupled system has
Engine direct drives mode, combination drive mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode；
In conjunction with the clutch, first brake is separated, in conjunction with the second brake, the engine driving is described
Generator and the driving motor do not work, and drive mode to establish the engine direct；
In conjunction with the clutch, first brake is separated, in conjunction with the second brake, the engine driving is described
Generator does not work, the driving motor driving, to establish the combination drive mode；
The clutch is separated, separates first brake, in conjunction with the second brake, the engine does not work, institute
It states generator not work, the driving motor driving, to establish the single motor electric-only mode；
The clutch is separated, in conjunction with first brake, separates the second brake, the engine does not work, institute
Generator and the common driving of driving motor driving are stated, to establish the bi-motor electric-only mode；
In conjunction with the clutch, first brake is separated, the second brake is separated, is sent out described in the engine driving
Electric power generation, the driving motor driving, to establish the e-CVT mode.
4. hybrid power coupled system according to claim 1, which is characterized in that the gear ring is rotationally sheathed on institute
It states on the output shaft of generator, the speed ratio of the first gear and the gear ring is less than 1.
5. hybrid power coupled system according to claim 1, which is characterized in that the output shaft of the engine with it is described
The output shaft of generator is coaxially arranged；
One end of the output shaft of the generator is connected with the sun gear, and the other end is connected with the second brake.
6. hybrid power coupled system according to claim 1, which is characterized in that the driving motor slows down by first
Gear pair is connected to the jackshaft.
7. hybrid power coupled system according to claim 6, which is characterized in that first speed reducing gear pair includes institute
The second gear stating first gear and engaging with the first gear, the second gear are set to the output of the driving motor
On axis.
8. hybrid power coupled system according to claim 1 or claim 7, which is characterized in that further include third gear and be used for
4th gear of connected with differential；
The third gear is set on the jackshaft and is arranged with the first gear interval, the third gear and described the
The engagement of four gears, the speed ratio of the 4th gear and the third gear less than 1, or
The third gear is engaged between the first gear and the 4th gear, the 4th gear and the third tooth
The speed ratio of wheel is less than 1, and the speed ratio of the third gear and the first gear is less than 1.
9. hybrid power coupled system according to claim 1, which is characterized in that the hybrid power coupled system has
Engine direct drives mode, combination drive mode, single motor electric-only mode, bi-motor electric-only mode and e-CVT mode；
First brake is separated, in conjunction with the second brake, the engine driving, the generator and the driving
Motor does not work, and drives mode to establish the engine direct；
First brake is separated, in conjunction with the second brake, the engine driving, the generator does not work, institute
Driving motor driving is stated, to establish the combination drive mode；
First brake is separated, in conjunction with the second brake, the engine does not work, and the generator does not work,
The driving motor driving, to establish the single motor electric-only mode；
In conjunction with first brake, the second brake is separated, the engine does not work, the generator and the drive
Dynamic motor driven drives jointly, to establish the bi-motor electric-only mode；
First brake is separated, the second brake, electrical power generators described in the engine driving, the drive are separated
Dynamic motor driven, to establish the e-CVT mode.
10. a kind of vehicle, including controller and the battery for being connected to the controller, which is characterized in that further include claim
The described in any item hybrid power coupled systems of 1-9, the engine, the generator and the driving motor are connected to described
Controller is simultaneously controlled by the controller.
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| CN111572339A (en) * | 2020-04-14 | 2020-08-25 | 义乌吉利自动变速器有限公司 | Pure power speed change gear, gearbox and vehicle |
| CN112572126A (en) * | 2019-09-29 | 2021-03-30 | 广州汽车集团股份有限公司 | Hybrid drive device and vehicle |
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| CN112572126A (en) * | 2019-09-29 | 2021-03-30 | 广州汽车集团股份有限公司 | Hybrid drive device and vehicle |
| CN111572339A (en) * | 2020-04-14 | 2020-08-25 | 义乌吉利自动变速器有限公司 | Pure power speed change gear, gearbox and vehicle |
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